MONTHLY GLOBAL TROPICAL CYCLONE SUMMARY
JULY, 2005
Second Installment
(For general comments about the nature of these summaries, as well as
information on how to download the tabular cyclone track files, see
the Author's Note at the end of this summary.)
NOTE: The July summary is being issued in two installments. The first
will cover the Atlantic basin, while the second will cover the Northeast
and Northwest Pacific basins as well as take a brief look at some minor
systems in other basins.
*************************************************************************
!!!!! SPECIAL NOTE - SUSPENSION OF THE FEATURE OF THE MONTH !!!!!
Effective with the July summary, I am for the time being discontinuing
the Feature of the Month as a regular addition to the monthly summaries.
I made this decision several months ago, but had enough things already
planned to keep it going for a few issues. I will continue from time to
time to include extra features, such as I did prior to the initiation of
the Feature of the Month beginning with the May, 2000, summary. Some of
the regular features such as various seasonal statistics and publicizing
the storm names for the various basins will continue to be included, and
occasionally other items of general interest may be included. But my
time has become much more restricted, and also I have just about run
out of ideas for the monthly features except for the aforementioned
"regulars". Hopefully, someday in the future these additions to the
summaries can be resumed on a monthly basis.
*************************************************************************
JULY HIGHLIGHTS
--> Unprecedented Atlantic activity for July with five storms
--> Two intense Category 4 Caribbean hurricanes with major hurricane
landfalls in Cuba, Mexico and Florida Panhandle
--> Severe typhoon strikes Taiwan and Chinese mainland
*************************************************************************
ACTIVITY BY BASINS
ATLANTIC (ATL) - North Atlantic Ocean, Caribbean Sea, Gulf of Mexico
Activity for July: 3 tropical storms
2 intense hurricanes
NOTE!!! The Atlantic basin was covered in the first installment of the
July summary.
*************************************************************************
NORTHEAST PACIFIC (NEP) - North Pacific Ocean East of Longitude 180
Activity for July: 2 tropical storms
Sources of Information
----------------------
Most of the information presented below was obtained from the
various tropical cyclone products issued by the Tropical Prediction
Center/National Hurricane Center (TPC/NHC) in Miami, Florida (or the
Central Pacific Hurricane Center (CPHC) in Honolulu, Hawaii, for
locations west of longitude 140W): discussions, public advisories,
forecast/advisories, tropical weather outlooks, special tropical
disturbance statements, etc. Some additional information may have
been gleaned from the monthly summaries prepared by the hurricane
specialists and available on TPC/NHC's website. All references to
sustained winds imply a 1-minute averaging period unless otherwise
noted.
Northeast Pacific Tropical Activity for July
--------------------------------------------
The month of July was extremely quiet in the Northeast Pacific Basin.
Over the period 1971-2004, July has averaged 3.7 named storms, 2 hurri-
canes, and 1 intense hurricane annually. In July of 2005 there were
only 2 short-lived tropical storms and no hurricanes, yielding a total
of 3 named-storm days. The average July sees 16 named-storm days.
Minimal Tropical Storm Dora brushed the Mexican coastline near Zihua-
tanejo while stronger Tropical Storm Eugene moved northwestward to a
point a couple hundred miles southwest of Cabo San Lucas. Short
reports on both these cyclones follow. Additional information may be
available at the following link:
<http://en.wikipedia.org/wiki/2005_Pacific_hurricane_season>
TROPICAL STORM DORA
(TC-04E)
4 - 6 July
---------------------------------------
The Eastern North Pacific's fourth tropical storm of the 2005 season
had its roots in an area of disturbed weather which developed some
200 nm south-southwest of the Gulf of Tehuantepec on 1 July. Gradual
development ensued as the system moved toward the west-northwest over
the next couple of days. By the evening of 3 July the disturbance
had gained enough in organization to be classified as Tropical
Depression 04E while located approximately 125 nm south of Acapulco,
Mexico. The depression continued moving toward the Mexican coast as
its convective organization increased. At 2100 UTC on 4 July the
system was upgraded to Tropical Storm Dora, located about 90 nm south-
east of Zihuatanejo, Mexico. Dora continued moving northwestward and
the center approached to within 35 nm of the coast near Zihuatanejo
before turning west-northwestward and paralleling the coastline on
5 July.
The cyclone managed to hang onto minimal tropical storm intensity
for almost 24 hours before weakening to a tropical depression at
05/1800 UTC. Moderate easterly shear plus interaction with the nearby
landmass likely prevented Dora from strengthening initially, and as
it pulled away from Mexico, it encountered cooler SSTs. The system
dissipated early on 7 July about 150 nm west-southwest of Manzanillo,
Mexico.
Acapulco (WMO 76805, 16.83N, 99.93W) recorded 110.2 mm of rainfall
during the 24 hours from 04/0000 to 05/0000 UTC. (This tidbit sent
by Huang Chunliang.)
A graphic displaying the track of Tropical Storm Dora may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
EAST/2005_04E_DORA.jpg>
No damage or casualties are known to have resulted from Tropical
Storm Dora.
(Report written by Gary Padgett)
TROPICAL STORM EUGENE
(TC-05E)
18 - 20 July
-----------------------------------------
Tropical Storm Eugene formed from a tropical wave on 18 July about
220 nm south of Manzanillo, Mexico. The first advisory was issued
at 1500 UTC and upgraded the disturbance directly to Tropical Storm
Eugene. The cyclone moved generally northwestward well offshore and
parallel to the Mexican coastline. Eugene strengthened slowly at
first, but by the early afternoon of the 19th banding features had
improved markedly and the cyclone reached its peak intensity of 60 kts
at 19/2100 UTC while located about 180 nm west-southwest of Cabo
Corrientes or approximately 200 nm south-southeast of Cabo San Lucas
on the southern tip of the Baja California Peninsula.
No sooner had Eugene reached its peak intensity, however, than it
began to quickly weaken. Banding features over the eastern and
southern quadrants began to quickly dissipate and the center became
partially-exposed to the southeast of the colder cloud tops. The
MSW remained at 60 kts for one more warning cycle, but then quickly
began to decrease. The effects of cooler SSTs and drier, stable air
had reduced Eugene to a tropical depression by 1200 UTC on 20 July,
and by late in the day had become a remnant LOW about 100 nm southwest
of Cabo San Lucas. The remnant LOW continued northwestward and had
dissipated by 22 July.
A graphic displaying the track of Tropical Storm Eugene may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
EAST/2005_05E_EUGENE.jpg>
No damage or casualties are known to have resulted from Tropical
Storm Eugene.
(Report written by Gary Padgett)
*************************************************************************
NORTHWEST PACIFIC (NWP) - North Pacific Ocean West of Longitude 180
Activity for July: 1 tropical depression **
4 tropical storms ++
1 super typhoon
** - treated as tropical depression by PAGASA and JMA but not by JTWC
++ - one of these formed at end of month and became a typhoon in August
Sources of Information
----------------------
Most of the information presented below is based upon tropical
cyclone warnings and significant tropical weather outlooks issued
by the Joint Typhoon Warning Center of the U. S. Air Force and
Navy (JTWC), located at Pearl Harbor, Hawaii. In the companion
tropical cyclone tracks file, I normally annotate track coordinates
from some of the various Asian warning centers when their center
positions differ from JTWC's by usually 40-50 nm or more. All
references to sustained winds imply a 1-minute averaging period
unless otherwise noted.
Michael V. Padua of Naga City in the Philippines, owner of the
Typhoon 2000 website, normally sends me cyclone tracks based upon
warnings issued by the Japanese Meteorological Agency (JMA) and the
Philippine Atmospheric, Geophysical & Astronomical Services
Administration (PAGASA). Also, Huang Chunliang of Fuzhou City, China,
sends data taken from synoptic observations around the Northwest
Pacific basin. A very special thanks to Michael and Chunliang for
the assistance they so reliably provide.
In the title line for each storm I have referenced all the cyclone
names/numbers I have available: JTWC's depression number, the
JMA-assigned name (if any), JMA's tropical storm numeric designator,
and PAGASA's name for systems forming in or passing through their
area of warning responsibility.
Northwest Pacific Tropical Activity for July
--------------------------------------------
After a rather quiet June, tropical cyclone activity picked up
considerably in the Northwest Pacific basin. Six tropical cyclones
formed with five becoming named storms. One of these, Tropical Storm
Matsa, formed at the end of the month and became a significant typhoon
in August. The report on that cyclone will be carried in the August
summary. Haitang formed shortly before mid-month from a TUTT-induced
circulation well northeast of Guam. The storm followed an unusual
southwesterly track for a few days which carried it just north of the
Marianas. After turning to a more normal westerly track Haitang
intensified into the season's first super typhoon with peak winds
reaching an estimated 140 kts (per JTWC). Fortunately Haitang (named
Feria by PAGASA) weakened somewhat before making landfall in Taiwan,
although it was still quite destructive. The cyclone eventually made
a final landfall on the Chinese mainland where it dissipated.
None of the remaining three July storms officially reached typhoon
intensity. Tropical Storm Nalgae formed shortly after the middle of the
month to the north of Wake Island. Like its predecessor, Haitang, Nalgae
formed from a TUTT-induced surface LOW. Unlike the great typhoon,
however, Nalgae did not menace any land areas, instead remaining far out
to sea in the eastern portion of the basin. Tropical Storm Banyan was
a very large monsoonish system which formed early in the 4th week of
July in the Philippine Sea about midway between the Philippines and Guam.
Banyan became a rather strong tropical storm and pursued an almost due
northerly track toward Japan, recurving as it near Honshu and clipping
the extreme southeastern tip of the island before transforming into an
extratropical cyclone and racing up towards the Kuril Islands. Tropical
Storm Washi formed late in the month in the South China Sea, moved
across Hainan Island and eventually into Vietnam. None of the warning
centers classified Washi as a typhoon, but there are some meteorologists
who strongly feel that the system did indeed reach typhoon intensity as
it traversed the Gulf of Tonkin.
Reports on the four named cyclones follow.
In addition to the above mentioned systems, another system was
classified as a tropical depression by several of the Asian warning
agencies, being dubbed Tropical Depression Emong by PAGASA. Emong formed
east of southern Luzon and moved in a west-northwesterly direction across
the north-central part of the island into the South China Sea. The
system then turned to the north and eventually moved inland into southern
China near Hong Kong. In addition to PAGASA, JMA, the Central Weather
Bureau of Taiwan and the Thai Meteorological Department treated this
disturbance as a tropical depression.
A graphic displaying the track of Tropical Depression Emong may be
found at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
WEST/2005_EMONG_BT.jpg>
Michael Padua, of Naga City, has placed on the web some observations
from his weather station taken during the passage of Emong. These may be
accessed at:
Graph:
<http://www.typhoon2000.ph/stormarchives/2005/observations/emong2005.gif>
Text:
<http://www.typhoon2000.ph/stormarchives/2005/observations/emong2005.txt>
SUPER TYPHOON HAITANG
(TC-05W / TY 0505 / FERIA)
10 - 20 July
----------------------------------------------
Haitang: contributed by China, is a Chinese flowering crabapple
tree; also a Chinese flowering temple
A. Introduction and Storm Origins
---------------------------------
Developing from a TUTT-induced disturbance deep within the
subtropics, Haitang went on to become the Northwest Pacific basin's
first super typhoon of the year, reaching a maximum intensity of
140 kts. Haitang made landfall on Taiwan as a weakening tropical
cyclone but still came ashore as a major typhoon with a MSW of 105 kts.
From there, it moved into China barely at typhoon intensity, the first
tropical cyclone to affect the Asian mainland of 2005.
Super Typhoon Haitang originated from an area of deep convection
that was located under the diffluent region of a TUTT cell approximately
760 nm east of Iwo Jima. It was first mentioned in JTWC's STWO at 1800
UTC 10 July when animated satellite imagery indicated a weak LLCC
associated with the disturbance. Drifting slowly west through a light
to moderate wind shear environment, the system developed rapidly and
became the subject of a TCFA at 11/0300 UTC. The first warning became
valid at 11/1200 UTC, placing the centre of Tropical Depression 05W
approximately 600 nm east of Iwo Jima. It was upgraded to a tropical
storm at 11/1800 UTC and named Haitang six hours later when JMA raised
their MSW to 35 kts.
B. Track and Intensity History
------------------------------
Tropical Storm Haitang remained a weak system on 12 July as it
drifted slowly towards the west-northwest at 5 to 8 kts. A HIGH centred
south of Japan was the primary steering influence, guiding the tropical
cyclone on a gentle, curving track across the Northwest Pacific.
Tracking west-southwestward, Haitang strengthened into a 70-kt typhoon
at 1800 UTC 13 July while located approximately 320 nm southeast of Iwo
Jima. Turning towards the west, Haitang continued to steadily intensify
on 14 July, its forward speed accelerating to around 19 kts. By the
time the typhoon entered the Philippine AOR at 15/0600 UTC, the MSW had
increased to 100 kts, and PAGASA assigned the name Feria. Strengthening
continued on 15 July, and Haitang/Feria was upgraded to a super typhoon,
the first of the year, while located approximately 405 nm south-
southeast of Okinawa. The system reached its peak intensity of 140 kts
at 16/1200 UTC while veering onto a west-northwesterly heading. At this
time, water vapor imagery revealed a large, cloud-free eye and strong
radial outflow. Haitang maintained an intensity of 140-kts for the rest
of 16 July as it began to bear down on the island of Taiwan.
Super Typhoon Haitang began to weaken and was downgraded to a 125-kt
typhoon at 0600 UTC 17 July approximately 255 nm southeast of Taipei,
Taiwan. After changing onto a northwesterly course, Haitang's heading
swung back to the west, and the typhoon made landfall near Hualein,
located 85 nm south of Taipei, at 18/0000 UTC with a MSW of 105 kts.
Once inland, the system rapidly became disorganized, and after almost
stalling over the mountains of central Taiwan, Haitang slowly staggered
the rest of the way across the island, re-emerging back over water as a
60-kt tropical storm at 18/1800 UTC. Moving west-northwestward, Haitang
regained typhoon intensity (65-kts) at 19/0000 UTC over the Taiwan
Strait. Turning north-northwestwards, the tropical cyclone rapidly
deteriorated and made landfall near Fuzhou, China, as a weakening 40-kt
tropical storm around 19/1200 UTC. At this time, both JTWC and JMA
issued their final warnings.
NMCC's peak wind estimate was 130 kts (10 min avg), the highest of all
the Asian agencies. Both JMA and PAGASA estimated a peak intensity of
105 kts; the lowest CP estimated by JMA was 915 mb. The highest MSW
estimated by the CWB of Taiwan and HKO were 110 kts and 100 kts,
respectively.
A graphic displaying the track of Super Typhoon Haitang may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
WEST/2005_05W_HAITANG.jpg>
C. Damage and Casualties
------------------------
At least twelve people were reported to have died as a result of
Haitang. All of the deaths occurred on Taiwan; there were no reports of
casualties in mainland China. Over one million people were evacuated
from the Chinese provinces of Fujian and Zhejiang before the storm hit.
(NOTE: According to information from Huang Chunliang of Fuzhou City,
there were 5 deaths attributed to Haitang on the Chinese mainland. See
Section D-Part V below. Also, some of the damage figures in Chunliang's
report differ from those given in the following two paragraphs, which
were obtained from various international press sources.)
Haitang's torrential rains caused heavy flooding. In Cangnan County
in Zhejiang Province, China, more than 300 people were trapped in their
homes by floodwaters, which reached more than 3.3 feet (one metre),
before being rescued. The county suffered power blackouts, cut water
supplies, and power blackouts. The city of Wenzhou was also badly
affected by the flooding. The Wenzhou Flood Control and Drought Relief
Headquarters reported that 2,612 houses were destroyed and 16,700
hectares of crops were damaged. City officials said Haitang caused an
economic loss of 2.16 billion yuan (261 million US dollars).
Haitang battered Taiwan with typhoon-force winds and torrential rains,
wreaking havoc on the island. Haitang dumped more than 12 inches
(305 mm) of rain across northern Taiwan, forcing airports, schools,
government offices and financial markets to close. Transportation was
badly affected with 90% of international flights cancelled and all
domestic transport suspended. Strong winds disrupted power supplies with
around 1.4 million households left without electricity. Around 1,500
people in northern Taiwan were evacuated from remote mountainous
villages. The floodwaters washed away homes, roads, bridges, and
decimated over 15,400 hectares of farmland, causing crop losses of nearly
30%. Haitang caused a total of T$2.97 billion (US$93 million) of damage
to agriculture.
D. Huang Chunliang Report from China
------------------------------------
{Part I} Landfalls
==================
According to the CWB warnings, Severe Typhoon 0505 (HAITANG) made
landfall in Taiwan Island near Tungao, Ilan County, around 18/0650 UTC
with a MSW of 51 m/s (100 kts) and a CP of 925 hPa after making a
counter-clockwise loop offshore east of Hualien. (The NMCC track also
described such a loop, despite the fact that the western part of the
loop was drawn overland near the coastline, i.e., NMCC stated that the
typhoon made its first landfall near Hualien around 18/0000 UTC with a
MSW of 55 m/s (110 kts) and a CP of 930 hPa before completing the 7-hr
loop around 18/0600 UTC and making a second landfall near Ilan around
18/0650 UTC with a MSW of 45 m/s (90 kts) and a CP of 940 hPa.) The
typhoon then entered the waters of Taiwan Strait from Houlong, Miaoli
County, around 18/1400 UTC.
According to the NMCC warnings, Typhoon 0505 (HAITANG) made landfall
near Huangqi Town, Lianjiang County, Fuzhou City, Fujian Province, around
19/0910 UTC with a MSW of 33 m/s (65 kts) and a CP of 975 hPa.
{Part II} Meteorological Obs from Taiwan Province
=================================================
NOTE: To convert from metres/second (m/s) to kts, divide m/s by
0.51444, or for a close approximation, simply double the
m/s value.
1. Peak Sustained Wind & Gust Obs
---------------------------------
Only those stations that reported sustained winds of gale force or
gusts of typhoon force are given:
Peak SW Peak Gust
Station (mps/Local Date) (mps/Local Date)
-----------------------------------------------------------------------
An Bu (WMO46691) 19.1/18th 42.0/18th
Taipei (WMO46692/58968, Alt 9m) 13.4/18th 37.6/18th
Keelung (WMO46694, Alt 3m) 20.3/18th 36.5/18th
Hualien (WMO46763/59362, Alt 14m) 28.2/18th 58.5/18th
Suao (WMO46706, Alt 3m) 26.3/18th 43.2/18th
Ilan (WMO46708, Alt 7m) 22.1/18th 36.8/18th
Penghu (WMO46735, Alt 21m) 18.0/18th 30.4/18th
Tainan (WMO46741/59358, Alt 14m) 17.1/18th 34.0/18th
Kaohsiung (WMO46744, Alt 29m) 18.0/18th 31.4/18th
Taichung (WMO46749/5915?, Alt 78m) 10.4/18th 34.0/18th
Hengchun (WMO46752, Alt 13m) 17.9/18th 37.9/18th
Chenggong (WMO46761, Alt 37m) 20.3/19th 30.1/18th
Wuci (WMO46777, Alt 5m) 26.2/18th 41.9/18th
Dongshi (WMO46730, Alt 45m) 27.9/18th 40.4/18th
Lanyu (WMO46762/59567, Alt 325m) 45.0/18th 63.0/18th
Mastsu (WMO46799) 17.1/18th 39.4/18th
2. Daily Top-10 Rainfall Obs
----------------------------
[16/1600-17/1600Z]
Ranking Station ID City/County Rainfall
------------------------------------------------------------
01 CWB C0U71 Ilan County 386.5 mm
02 CWB C0U73 Ilan County 343.5 mm
03 CWB C1C46 Taoyuan County 338.5 mm
04 CWB 21C14 Taoyuan County 266.0 mm
05 CWB C1U51 Ilan County 256.0 mm
06 CWB A0C54 Taoyuan County 252.0 mm
07 CWB C0A54 Taipei County 238.0 mm
08 CWB C1D40 Hsinchu County 232.0 mm
09 CWB C1A9N Taipei County 230.0 mm
10 CWB C0A58 Taipei County 225.5 mm
[17/1600-18/1600Z]
Ranking Station ID City/County Rainfall
------------------------------------------------------------
01 CWB C0R10 Pingtung County 1009.0 mm
02 CWB C1R12 Pingtung County 855.0 mm
03 CWB C1V30 Kaohsiung County 715.5 mm
04 CWB C0U71 Ilan County 697.0 mm
05 CWB C1V27 Kaohsiung County 642.5 mm
06 CWB C1R14 Pingtung County 638.0 mm
07 CWB C0V25 Kaohsiung County 565.0 mm
08 CWB C0O81 Tainan County 562.5 mm
09 CWB C1V24 Kaohsiung County 555.5 mm
10 CWB C0M41 Chia-i County 511.5 mm
[18/1600-19/1600Z]
Ranking Station ID City/County Rainfall
------------------------------------------------------------
01 CWB C1V30 Kaohsiung County 931.0 mm
02 CWB C1V27 Kaohsiung County 880.0 mm
03 CWB C0R10 Pingtung County 737.0 mm
04 CWB C1V22 Kaohsiung County 728.5 mm
05 CWB C1V19 Kaohsiung County 725.5 mm
06 CWB C1M61 Chia-i County 689.0 mm
07 CWB C0M53 Chia-i County 667.5 mm
08 WMO 46753 Chia-i County 663.0 mm
09 CWB C1F94 Taitung County 657.0 mm
10 CWB C1V34 Kaohsiung County 621.5 mm
[19/1600-20/1600Z]
Ranking Station ID City/County Rainfall
------------------------------------------------------------
01 CWB C1R14 Pingtung County 494.0 mm
02 CWB C0R10 Pingtung County 438.0 mm
03 CWB C1R12 Pingtung County 436.0 mm
04 CWB C1R20 Pingtung County 405.5 mm
05 CWB C1R17 Pingtung County 403.5 mm
06 CWB C0R15 Pingtung County 397.5 mm
07 CWB C1R13 Pingtung County 385.0 mm
08 CWB C1R11 Pingtung County 378.0 mm
09 CWB C1R16 Pingtung County 373.5 mm
10 CWB C1V39 Kaohsiung County 372.0 mm
[20/1600-21/1600Z]
Ranking Station ID City/County Rainfall
------------------------------------------------------------
01 WMO 46778 Tainan County 209.0 mm
02 CWB C1O95 Tainan City 206.0 mm
03 CWB C1R13 Pingtung County 176.0 mm
04 CWB C1V30 Kaohsiung County 174.0 mm
05 CWB C1R16 Pingtung County 166.0 mm
06 CWB C1R12 Pingtung County 162.0 mm
07 CWB C0X08 Tainan County 161.5 mm
08 CWB C0R10 Pingtung County 161.0 mm
09 CWB C1X09 Tainan County 156.5 mm
10 CWB C1V24 Kaohsiung County 156.0 mm
Note: Mt. Weiliaosan, Pingtung County (CWB C0R10) reported a 4-day
[17/1600-21/1600Z] total rainfall amount of 2345 mm, 1009 mm of which
poured down within the 24-hr period ending at 18/1600Z.
{Part III} Meteorological Obs from Fujian Province
==================================================
1. Gust Obs
-----------
Following are WMO stations reporting gusts of gale force or higher:
Station Name Station Info Peak Gust
------------------------------------------------------------------------
Shouning, Ningde City WMO58744, 27.53N 119.42E, Alt 826m 27 m/s
Zhouning, Ningde City WMO58747, 27.15N 119.35E, Alt 900m 22 m/s
Pingnan, Ningde City WMO58933, 26.92N 118.98E, Alt 871m 20 m/s
Zherong, Ningde City WMO58749, 27.25N 119.90E, Alt 670m 29 m/s
Fuding, Ningde City WMO58754, 27.33N 120.20E, Alt 38m 26 m/s
Xiapu, Ningde City WMO58843, 26.88N 120.59E, Alt 13m 26 m/s
Ningde, Ningde City WMO58846, 26.33N 119.53E, Alt 33m 21 m/s
Luoyuan, Fuzhou City WMO58845, 26.50N 119.53E, Alt 57m 27 m/s
Changle, Fuzhou City WMO58941, 25.97N 119.50E, Alt 8m 33 m/s
Lianjiang, Fuzhou City WMO58848, 26.20N 119.53E, Alt 7m 28 m/s
Fuzhou, Fuzhou City WMO58847, 26.08N 119.28E, Alt 85m 24 m/s
Minhou, Fuzhou City WMO58844, 26.15N 119.15E, Alt 50m 20 m/s
Fuqing, Fuzhou City WMO58942, 25.72N 119.38E, Alt 38m 20 m/s
Pingtan, Fuzhou City WMO58944, 25.52N 119.78E, Alt 31m 33 m/s
Putian, Putian City WMO58946, 25.43N 119.59E, Alt 29m 24 m/s
Xianyou, Putian City WMO58936, 25.37N 118.70E, Alt 77m 20 m/s
Chongwu, Quanzhou City WMO59133, 24.90N 118.92E, Alt 23m 18 m/s
Dehua, Quanzhou City WMO58935, 25.48N 118.23E, Alt 517m 18 m/s
Yongchun, Quanzhou City WMO58934, 25.33N 118.27E, Alt 170m 21 m/s
Xiamen, Xiamen City WMO59134, 24.48N 118.07E, Alt 138m 20 m/s
Tong'an, Xiamen City WMO59130, 24.72N 118.13E, Alt 15m 18 m/s
Jian'ou, Nanping City WMO58737, 27.05N 118.32E, Alt 156m 18 m/s
Nanping, Nanping City WMO58834, 26.65N 118.17E, Alt 128m 18 m/s
Zhenghe, Nanping City WMO58736, 27.37N 118.82E, Alt 221m 20 m/s
Following are insular automatic stations reporting peak gusts of gale
force or higher:
Taishan 45.6 m/s
Xiyang 41.1 m/s
Pingtan 39.8 m/s
Nanri 35.8 m/s
Weitou 22.4 m/s
2. Rainfall Obs
---------------
During the 72-hr period ending at 20/0000 UTC, rains > 200 mm were
recorded in 9 counties/sub-cities of Fuzhou and Ningde Cities with
Zherong County reporting the highest amount of 665 mm. (Guanyang, Ningde
City, reported a 3-day total amounting to 780 mm----the highest of the
hydrological stations during the same period.)
Extrema from Zherong County, Ningde City:
Daily rainfall: 472 mm [18/0000-19/0000Z] (a new record for the station)
6-hr rainfall: 158 mm [18/1800-19/0000Z]
3-hr rainfall: 130 mm [19/0000-19/0300Z]
3. Obs from Fuzhou City
-----------------------
The WMO station 58847 (Fuzhou) is only a few kilometers NE of my home.
According to those reports from the station, we had 123 mm of rains
within 24 hrs [18/0000-19/0000Z] before Haitang made landfall near
Fuzhou's Lianjiang County as a minimal typhoon around 19/0910Z (per
NMCC). This was not too long before we received another very wet day,
when the station reported 141 mm of rain [21/0000-22/0000Z], mainly
recorded within 12 hrs [21/1200-22/0000Z] (It should be noted that
108 mm out of the total poured down within 6 hrs [21/1200-21/1800Z] from
the periphery of the well-removed weakening depression.) One of the
urban stations even recorded rainfall amounting to 219 mm during the
same 12 hrs [21/1200-22/0000Z]!
As for the winds, the majority of the peak gusts were reported by
stations in the city 24 hrs or so before landfall occurred when the
still powerful typhoon was roaming over Taiwan Island. The urban area
(WMO58847) reported 47 knots, while another two WMO stations, Changle
(WMO58941) and Pingtan (WMO58944) both reported minimal typhoon force.
Additionally, an insular station located on Pingtan Island recorded gusts
topping 77 knots.
Nearly 9000 trees in the urban area of Fuzhou City were uprooted or
partly damaged by Haitang's winds, though that occurred mainly on the
18th. The day of landfall, the 19th, seemed much calmer for my location.
Actually, we even observed a decent rainbow on one occasion in the
morning--very rare here during typhoons. (Interestingly, a press report
indicated that another rainbow had been observed in Taipei City on the
same day.)
{Part IV} Meteorological Obs from Zhejiang Province
===================================================
1. Gust Obs
-----------
The most significant two gust reports, 41.3 m/s and 41.1 m/s, came
from the automatic stations named Zhaoshandu (located in Rui'an City)
and Haishan (located in Yuhuan County), respectively.
2. Rainfall Obs
---------------
During the 96-hr period ending at 21/0000 UTC, rains > 400 mm were
reported by 13 stations (including hydrological stations) with Futou,
Yueqing City reporting the highest amount of 840 mm.
Extrema from Station Yueqing:
3-day rainfall: 793 mm [18/0000-21/0000Z]
24-hr rainfall: 513 mm [19/0300-20/0300Z]
Daily rainfall: 487 mm [19/0000-20/0000Z]
3. Hydrological Obs
-------------------
Two hydrological stations reported record-breaking water levels
during the storm:
Station Peak Water Level Former Record
------------------------------------------------
Yueqing 6.77 m [19/2020Z] 6.40 m [2004]
Daitou 19.19 m [19/0542Z] 19.18 m [1994]
{Part V} Rainfall Obs from Other Provinces
==========================================
a. Lushan, Jiangxi Province (WMO58506, 29.58N 115.98E, Alt 1165m)
reported 204 mm from [20/0000-21/0000Z]
b. Changde, Hu'nan Province (WMO57662, 29.05N 111.68E, Alt 35m)
reported 208 mm from [22/0000-23/0000Z]
c. Zhengzhou, He'nan Province (WMO57083, 34.72N 113.65E, Alt 111m)
reported 109 mm from [21/0900-22/0900Z]
d. Xingyang, He'nan Province (WMO57081, 34.80N 113.43E, Alt 141m)
reported 282 mm from [21/0900-22/0900Z]
e. Qinyang, He'nan Province (WMO53972, 35.12N 112.92E, Alt 120m)
reported 162 mm from [21/0900-22/0900Z]
f. Jiaozuo, He'nan Province (WMO53982, 35.23N 113.27E, Alt 113m)
reported 121 mm from [21/0900-22/0900Z]
{Part VI} Damage and Casualties
===============================
Haitang, the first 2005 TC/typhoon that made landfall in China, has
turned out to be the strongest one to hit Taiwan Province in nearly five
years, since Severe Typhoon 0010 (Bilis), which according to CWB, made
landfall in Taiwan on the 22nd of August, 2000, with a MSW of 53 m/s
(105 kts) and a CP of 930 hPa. Press reports indicated that Typhoon
Haitang caused 12 deaths and left five people missing in Taiwan.
Agricultural losses in the province were estimated to be at least
NT$ 4.2 billion.
Preliminary statistics indicated that the typhoon caused 11.92 billion
yuan of direct economic losses in Fujian, Zhejiang and Jiangxi and was
responsible for 5 deaths as well as 6 missing in the provinces, where
10,185,000 residents were affected, 18,000 houses were toppled and
326,000 ha of farmland was damaged. Some 863,000 and 558,000 people
were evacuated in Fujian and Zhejiang, respectively, due to the typhoon.
{Part VII} References (All in Chinese version)
==============================================
<http://www.nmc.gov.cn> <NATIONAL METEOROLOGICAL CENTER (BEJING)>
<http://www.cwb.gov.tw> <CENTRAL WEATHER BUREAU (TAIPEI)>
<http://www.fjqx.gov.cn> <FUJIAN METEOROLOGICAL BUREAU (FUZHOU)>
<http://www.zjwater.com> <ZHEJIANG WATER CONSERVANCY (HANGZHOU)>
E. Huang Chunliang Report from Japan
------------------------------------
Station Min SLP (hPa) Peak SW (m/s) Peak Gust (m/s)
-------------------------------------------------------------------
Miyakojima 993.1 [17/0825Z] 17.9 [17/0930Z] 34.5 [17/1209Z]
Ishigakijima 980.6 [17/1455Z] 29.1 [17/1610Z] 47.6 [17/1546Z]
Iriomotejima -----#[--------] 24.8 [17/1420Z] 45.9 [17/1549Z]
Yonagunijima 967.9 [17/1903Z] 34.9 [17/1850Z] 54.8 [17/1843Z]
Station Maximum Daily Rainfall (mm)
------------------------------------------------
Miyakojima 106.0 [17/1500-18/1500Z]
Ishigakijima 181.0 [17/1500-18/1500Z]
Iriomotejima 335.0* [17/1500-18/1500Z]
Yonagunijima 231.5 [17/1500-18/1500Z]
Note 1 (#): Iriomotejima didn't reported a min SLP due to fault of the
facility.
Note 2 (*): Record-breaking value for the station.
Note 3: Miyakojima is WMO47927, 24.79N 125.28E, Alt 40 m
Ishigakijima is WMO47918, 24.34N 124.16E, Alt 6 m
Iriomotejima is WMO47917, 24.39N 123.75E, Alt 9 m
Yonagunijima is WMO47912, 24.47N 123.01E, Alt 30 m
(Sections A, B and C written by Kevin Boyle; sections D and E written
by Huang Chunliang)
TROPICAL STORM NALGAE
(TC-06W / TS 0506)
18 - 25 July
-----------------------------------------
Nalgae: contributed by North Korea, is the Korean word for wing,
or flying
A. Storm Origins
----------------
Tropical Storm Nalgae, like Super Typhoon Haitang (TC-05W) which
preceded it, originated in association with a TUTT cell within the
subtropics. It was first mentioned in a Significant Tropical Weather
Outlook at 0000 UTC 18 July as an area of convection approximately
135 nm north-northeast of Wake Island. Remarks in this statement
included: "Recent animated multi-spectral satellite imagery indicates
an upper LOW which may have induced a low-level circulation centre.
Over the past 4 hours, Wake Island has reported surface winds from
the southwest at 12 knots with gusts to 18 knots." An upper-level
analysis indicated a low to moderate wind shear environment with
favourable diffluence aloft. The system slowly developed over the
next two days and a Tropical Cyclone Formation Alert was issued at
19/2230 UTC after multi-spectral satellite imagery showed rapidly
increasing deep convection. The first warning was released at
20/0000 UTC.
B. Track and Intensity History
------------------------------
At 0000 UTC 20 July Tropical Depression 06W was located approximately
325 nm north-northwest of Wake Island and was drifting towards the
northwest at 6 kts along the southwestern periphery of a mid-level
steering ridge situated to the northeast. The system quickly
intensified, and was upgraded to a 45-kt tropical storm at 20/0600
UTC. JMA assigned the name Nalgae six hours later after their 10-min avg
MSW reached 35 kts. No further strengthening occurred on 20 July as
Nalgae continued northwestward. However, Nalgae did intensify a little
more, reaching its peak intensity of 50 kts at 21/0000 UTC while centred
560 nm north-northwest of Wake Island.
Despite losing much of its supporting deep convection, Tropical Storm
Nalgae managed to maintain its peak intensity of 50 kts for a further
twelve hours on 21 July before quickly weakening to a 35-kt tropical
storm at 0000 UTC 22 July while located approximately 785 nm north-
northwest of Wake Island. However, the system recovered slightly on
22 July as it rounded the steering ridge, the MSW nudging back up to
40 kts at 22/1200 UTC. The intensity began to fall again after the
LLCC became partially-exposed at 23/0000 UTC and Nalgae was downgraded
to a tropical depression at 23/1200 UTC, the time that JTWC issued the
final warning. However, Nalgae remained a tropical storm in JMA
warnings for a further 48 hours as it continued moving slowly towards
the northeast. JMA wrote the last statement at 25/1800 UTC and Nalgae's
remnants gradually dissipated on 26 July.
JMA, NMCC, and CWB of Taiwan, all estimated peak intensities of
45 kts. HKO and PAGASA never issued any warnings on this system, which
remained outside their respective AORs.
A graphic displaying the track of Tropical Storm Nalgae may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
WEST/2005_06W_NALGAE.jpg>
C. Damage and Casualties
------------------------
There were no reports of damages or casualties in association with
Tropical Storm Nalgae.
(Report written by Kevin Boyle)
TROPICAL STORM BANYAN
(TC-07W / STS 0507)
20 - 31 July
-----------------------------------------
Banyan: contributed by Hong Kong, is a type of tree commonly found
in the southern part of China
A. Introduction and Storm Origins
---------------------------------
This large, rather lax tropical cyclone was the first storm to form
in the monsoon trough in nearly two months, discounting the weak system,
Tropical Depression Emong, that affected the Philippines in early July.
Banyan's immense circulation dominated the Western North Pacific for
almost a week, and just narrowly missed the coastline of southeastern
Japan on 26 July.
A large tropical disturbance, the precursor of Tropical Storm Banyan,
was first mentioned as a suspect area in JTWC's STWO at 1230 UTC 20 July
when animated enhanced infrared satellite imagery indicated organizing
deep convection around a broad LLCC approximately 460 nm west-northwest
of Guam. An upper-air analysis revealed an area of low to moderate wind
shear and favourable diffluence aloft. By 21/0230 UTC the system had
organized sufficiently to warrant the issuance of a TCFA. The first
warning was released on Tropical Depression 07W at 21/1200 UTC. It was
assigned the name Banyan at 21/1800 UTC when JMA upped their 10-min avg
MSW to 35 kts. JTWC upgraded Banyan to a 35-kt tropical storm at 22/0000
UTC, placing the centre approximately 440 nm west-northwest of Guam. At
this time, animated and microwave satellite imagery, combined with ship
and buoy observations, indicated a broad circulation with the strongest
winds and deep convection located on the periphery of the system, a
characteristic trait that Banyan would retain for the rest of its life.
B. Track and Intensity History
------------------------------
During its development phase Banyan had been virtually stationary,
covering very little ground (or ocean), but a slow northward drift began
on 22 July as a low to mid-level ridge located to the east began to
assert its steering influence. Continuing steadily northward, Tropical
Storm Banyan began to slowly strengthen over the next couple of days and
reached a peak intensity of 60 kts at 1200 UTC 24 July approximately
660 nm south-southwest of Tokyo, Japan. This was maintained for only six
hours, and the MSW began to steadily drop at 24/1800 UTC. Reasons why
Banyan didn't quite attain typhoon intensity include: 1) failure to
completely tighten up its inner core, 2) overall asymmetry of the
tropical cyclone, i.e. the deep convection was greatly suppressed over
the western semicircle, and 3) the inability of the deep convection
to consolidate over the LLCC.
Accelerating northwards, Tropical Storm Banyan continued to weaken.
The tropical cyclone turned north-northeastward early on 26 July, then
northeastward as it crested the axis of the subtropical ridge located
to the southeast. The associated deep convection diminished as the storm
began to suffer from the effects of dry air intrusion, cooler SSTs, and
stronger vertical shear. Tropical Storm Banyan continued northeastward
and passed approximately 60 nm southeast of Tokyo, Japan, at 1200 UTC
26 July with gale-force winds and heavy rains arriving well in advance of
the centre. Banyan was declared extratropical at 27/0000 UTC with JTWC
issuing the final warning at this time. JMA, however, maintained
Banyan as a tropical storm until 28/0000 UTC. After passing south of
Kamchatka on 29 July, former Tropical Storm Banyan was last seen heading
in the general direction of Alaska.
The lowest CP estimated by JMA was 980 hPa. Among the Asian warning
agencies, the highest 10-min avg MSW estimate was 60 kts from NMCC.
JMA and the CWB of Taiwan both estimated the peak MSW at 55 kts.
A graphic displaying the track of Tropical Storm Banyan may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
WEST/2005_07W_BANYAN.jpg>
C. Damage and Casualties
------------------------
There have been no reports of casualties as a result of Tropical Storm
Banyan. However, torrential rains, up to 16 inches in some coastal
areas, forced the evacuation of 320 people in central Japan amid concerns
of landslides. Two people were rescued by helicopter after their yacht
sank. Coastal roads were closed and several train, flight and ferry
services were suspended. Several oil refineries were forced to halt
operations, most notably Japan's biggest oil refinery--Nippon Oil Co--
which halted sea deliveries of products at its Negishi refinery and
Yokohama oil terminal. Idemitsu Kosan Co and Cosmo Oil Co also
suspended operations at sea at some facilities.
D. Huang Chunliang Report from Japan
------------------------------------
{Part I}. Landfall
==================
According to the JMA warnings, Typhoon 0507 (BANYAN) made landfall
near Kamogawa City, Chiba Prefecture, around 26/1100 UTC with a MSW of
25 m/s and a CP of 980 hPa.
{Part II}. Meteorological Obs from Tokyo District Meteorological
Observatory
================================================================
Note 1: All the obs in this part were reported within the precinct of
Tokyo District Meteorological Observatory, including the prefectures of
Niigata, Toyama, Ishikawa, Fukui, Ibaraki, Gumma, Tochigi, Saitama,
Tokyo, Chiba, Kanagawa, Yamanashi, Nagano, Shizuoka, Gifu, Aichi and Mie.
Note 2: "#" = record-breaking values of July for relevant stations.
1. Top-5 Daily Rainfall [25/1500-26/1500Z] Obs
----------------------------------------------
Ranking Prefecture Station Rainfall (mm)
------------------------------------------------------------
01 Shizuoka Amagisan 418
02 Kanagawa Hakone 400 #
03 Saitama Tokigawa 266
04 Saitama Urayama 266 #
05 Tochigi Happogahara 206
05 Saitama Chichibu 202
2. Top-1 Peak Sustained Wind (10-min avg) Obs
---------------------------------------------
Ranking Station Peak wind (mps)
-----------------------------------------------------------------------
01 Choshi, Chiba (WMO47648, Alt 20m) 16.1 [25/2120Z]
3. Top-1 Peak Gust Obs
----------------------
Ranking Station Peak wind (mps)
-----------------------------------------------------------------------
01 Hachijojima, Tokyo (WMO47678, Alt 79m) 33.0 [26/0107Z]
4. Top-5 SLP Obs
----------------
Ranking Station Min SLP (hPa)
---------------------------------------------------------------
01 Miyakejima, Tokyo (WMO47677) 976.6 [26/0811Z]
02 Hachijojima, Tokyo (WMO47678) 978.2 [26/0704Z]
03 Katsuura, Chiba (WMO47674) 978.9 [26/1133Z]
04 Choshi, Chiba (WMO47648) 979.3 [26/1303Z]
05 Ojima, Tokyo (WMO47675) 979.6 [26/0831Z]
{Part III} References
=====================
<http://www.tokyo-jma.go.jp/sub_index/bosai/disaster/ty0507/ty0507_kanku.pdf
>
(Japanese version only)
(Sections A, B and C written by Kevin Boyle; Section D written by
Huang Chunliang)
TROPICAL STORM WASHI
(TC-08W / TS 0508)
28 - 31 July
----------------------------------------
Washi: contributed by Japan, means 'eagle'; also Aquila, the
constellation of the eagle
A. Storm Origins
----------------
At 0300 UTC 28 July a STWO was re-issued to include a persistent area
of convection located approximately 305 nm south of Hong Kong, China.
A 27/2201 UTC QuikScat pass revealed a broad LLCC with the strongest
winds on the equatorward side while both multi-spectral and enhanced
infrared satellite imagery depicted most of the deep convection in
the southern semicircle of the disturbance. An upper-level analysis
indicated that the system was embedded within an environment of low
to moderate wind shear. The deep convection increased and consolidated
around the LLCC and, on the basis of this, a TCFA was released at
28/1730 UTC. The first warning became valid at 28/1800 UTC.
B. Track and Intensity History
------------------------------
Tropical Depression 08W intensified, and was upgraded to a 35-kt
tropical storm at 1200 UTC 29 July while located approximately 130 nm
east of Hainan, China. By this time JMA's MSW had also reached 35 kts
(10-min avg) and the system was named Washi by that agency. Drifting
west-northwestwards, Tropical Storm Washi made landfall on the southeast
coast of Hainan in the vicinity of Xinglong at around 30/0000 UTC.
Continuing west-northwestwards, Washi cleared the island and moved into
the warm waters of the Gulf of Tonkin where it strengthened to its peak
intensity of 45-kts at 30/1200 UTC approximately 180 nm southeast of
Hanoi, Vietnam. From there, Washi turned toward the west and came ashore
roughly 45 nm south of Hanoi, Vietnam, shortly after 31/0000 UTC with the
MSW estimated at 45 kts. The final warning was issued by JTWC at 31/0600
UTC after the storm had tracked further inland and begun to weaken.
JMA maintained Washi as a tropical storm for another twelve hours before
downgrading the system to a tropical depression on their last statement
at 31/1800 UTC. The remnants of Tropical Storm Washi continued further
inland and could no longer be distinguished in satellite imagery by
1 August. (Editor's Note: All the Asian warning agencies rated Washi's
peak 10-min avg MSW at 45 kts except for NMCC, who estimated the peak
winds at 50 kts.)
A graphic displaying the track of Tropical Storm Washi may be found
at the following link:
<http://www.tropicalcyclone2005.com/database/tc_besttracks_graphics/PACIFIC_
WEST/2005_08W_WASHI.jpg>
C. Damage and Casualties
------------------------
According to news sources, Tropical Storm Washi left at least two
people dead and injured two others in Vietnam. Two persons were still
unaccounted for as of the writing of this report. The storm destroyed
27 houses and blew the roofs off 206 other homes. Three 30-ton ships
and two barges were also wrecked. Large sections of dykes in the
northern provinces of Vietnam were damaged, and destruction of
aquaculture totaled 26,500 ha. In addition, more than 28,000 ha of
rice and subsidiary food crops were inundated.
D. Huang Chunliang Report from China
------------------------------------
{Part I} Landfalls
==================
According to the NMCC warnings, Severe Tropical Storm 0508 (Washi)
made landfall near Changpo Town, Qionghai City, Hainan Province around
29/2125 UTC with a MSW of 25 m/s (50 kts) and a CP of 984 hPa. Crossing
the island, the storm entered the waters of the Gulf of Tonkin from
Danzhou City, Hainan Province, as a Tropical Storm around 30/0800 UTC.
According to the NMCC warnings, Tropical Storm 0508 (Washi) made
landfall over the coast of northern Vietnam around 31/0510 UTC with a
MSW of 23 m/s (45 kts) and a CP of 984 hPa.
{Part II} Meteorological Obs from Hainan Province
=================================================
1. Gust Obs
-----------
Gusts of gale force or higher were reported by a few cities/counties
during the storm. A special meteorological mission squad recorded a
peak gust of 34.3 m/s in Mulantou Town, Wenchang City.
2. Rainfall Obs
---------------
During the 72-hr period ending at 31/0000 UTC, rains > 200 mm were
recorded in 3 counties/cities with Dongfang City reporting the highest
amount: 345 mm of rain were recorded from 29/0000 through 31/0000 UTC.
{Part III} Damage and Benefit for Hainan Province
=================================================
Damage was mild with 56,000 people being affected by the storm and
direct economic losses of 140 million yuan being reported. The only
storm associated death was due to a lightning strike.
Compared with its damage, the benefit from Washi was more remarkable.
TS Washi evidently eased the marathon drought, which had lasted as long
as 15 months in the province, which had already been TC-free for
20 months since Typhoon 0320 (Nepartak) in November, 2003.
{Part IV} References (All in Chinese version)
=============================================
<http://www.nmc.gov.cn> <NATIONAL METEOROLOGICAL CENTER (BEJING)>
<http://www.grmc.gov.cn> <GUANGZHOU REGIONAL METEOROLOGIC CENTER
(GUANGZHOU)>
E. Rainfall Obs from Vietnam
----------------------------
Only 24-hr amount(s) >= 100 mm listed:
THANH HOA (19.75N 105.78E) 125.1 mm [30/12-31/12Z]
F. Was Washi a typhoon at landfall?
-----------------------------------
During its transit of the Gulf of Tonkin and up to the time of land-
fall in Vietnam, Washi developed a feature which strongly resembled a
bonafide eye. Yet none of the warnings agencies assigned a MSW greater
than 45 kts (including JTWC) except for Beijing, which estimated a peak
10-min avg MSW of 50 kts. A good bit of e-mail discussion ensued
regarding whether or not Washi attained typhoon intensity in the Gulf
of Tonkin. Mark Lander, Roger Edson and Karl Hoarau all stated that
they definitely felt that Washi was a typhoon, based on the signature
of the cyclone in visible, infrared and microwave imagery. Many times
in the past tropical cyclones which entered the Gulf of Tonkin with
their circulations still intact underwent significant intensification,
and it appeared that Washi had done the same. There were some, however,
who suggested that the eye might be a 'sucker hole', i.e., a peculiar
cloud formation which might look like an eye but really is only a
coincidental line up of cloud images. Roger Edson pointed out, arguing
for the existence of a true eye, that the 'eye' appeared in the same
comparative location in the different microwave bands. 'Sucker holes'
usually do not show up in the same location in both the 85 GHz and 37 GHz
bands.
Jack Beven, however, pointed out that there were some alternate
interpretations of the satellite imagery. Jack indicated that he
likely would not use an IR eye pattern in performing Dvorak analysis.
However, he did point out that at one stage an analyst might obtain
a Data-T number of 4.0 (65 kts) by use of visible imagery. Jack was of
the opinion that most likely he would obtain a Data-T of 3.5 (55 kts)
from the IR imagery. Even so, that is stronger than any of the warning
centers bar NHCC analyzed the cyclone to be. Unfortunately, no surface
observations from the landfall zone have become available which might
help to settle the argument.
(Sections A, B and C by Kevin Boyle; Sections D and E by Huang Chunliang;
Section F by Gary Padgett)
*************************************************************************
NORTH INDIAN OCEAN (NIO) - Bay of Bengal and Arabian Sea
Activity for July: 1 depression
North Indian Ocean Tropical Activity for July
---------------------------------------------
Following is a report by Huang Chunliang on a system which was
classified as a deep depression by the India Meteorological Department.
The dates of the depression were 29 - 31 July, and it was referenced by
SAB as disturbance 90B. A special thanks to Chunliang for compiling
and sending the report.
{Part I}. Introduction (time in local, i.e., UTC+5.5 hrs)
=========================================================
A low-pressure area formed over the northwest Bay of Bengal off the
Gangetic West Bengal coast on the 28th. It concentrated into a
Depression on the 29th with its centre close to Balasore (21.52N/86.93E)
and remained practically stationary on the 30th but became a Deep
Depression. The Deep Depression over the Northwestern Bay off the Orissa
coast moved in a westerly direction and was centered close to Keojhargarh
(21.63N/85.58E) at 1730 hrs IST on the 30th after making landfall over
the coastal area of Northern Orissa that day. It remained practically
stationary close to Keonjhargarh in Orissa on the 31st. Moving in a
west-northwesterly direction, it weakened rapidly into a well-marked
low-pressure area over central parts of Madhya Pradeshon on the 1st of
August and further into a low-pressure area over northwest Madhya Pradesh
and adjoining East Rajasthan on the 2nd . It became less marked on the
3rd. (Slightly edited from the INDIA METEOROLOGICAL DEPARTMENTAL INDIA
WEEKLY WEATHER REPORT.
Note: Neither NRL nor JTWC ever mentioned the system, while SAB
temporarily numbered it 90B and once evaluated it as a T1.5 system at
29/0830 UTC.
{Part II}. Rainfall Obs from India (only daily amounts >= 10 cm listed)
=======================================================================
Station/State Rainfall Dates/Time
---------------------------------------------------------------
Chandbali, ORISSA 25 cm [28/03-29/03Z]
Thakurmunda, ORISSA 23 cm [28/03-29/03Z]
Rajkanika, ORISSA 19 cm [28/03-29/03Z]
Tikarpada, ORISSA 31 cm [29/03-30/03Z]
Rairakhol, ORISSA 31 cm [29/03-30/03Z]
Athagarh, ORISSA 29 cm [29/03-30/03Z]
Khandapada, ORISSA 29 cm [29/03-30/03Z]
Hindol, ORISSA 26 cm [29/03-30/03Z]
Akhupada, ORISSA 25 cm [29/03-30/03Z]
Chandbali, ORISSA 24 cm [29/03-30/03Z]
Narai, ORISSA 24 cm [29/03-30/03Z]
Athamalik, ORISSA 24 cm [29/03-30/03Z]
Mundali, ORISSA 22 cm [29/03-30/03Z]
Rajkanika, ORISSA 22 cm [29/03-30/03Z]
Rajkishorenagar, ORISSA 22 cm [29/03-30/03Z]
Dhenkanal, ORISSA 22 cm [29/03-30/03Z]
Cuttack, ORISSA 21 cm [29/03-30/03Z]
Jamankira, ORISSA 21 cm [29/03-30/03Z]
Pallahara, ORISSA 20 cm [29/03-30/03Z]
Rengali, ORISSA 20 cm [29/03-30/03Z]
Talcher, ORISSA 20 cm [29/03-30/03Z]
Angul, ORISSA 19 cm [29/03-30/03Z]
Jenapur, ORISSA 18 cm [29/03-30/03Z]
Kendrapara, ORISSA 18 cm [29/03-30/03Z]
Binika, ORISSA 18 cm [29/03-30/03Z]
Narsinghpur, ORISSA 17 cm [29/03-30/03Z]
Bargarh, ORISSA 17 cm [29/03-30/03Z]
Sambalpur, ORISSA 17 cm [29/03-30/03Z]
K-Nagar, ORISSA 16 cm [29/03-30/03Z]
Bijepur, ORISSA 16 cm [29/03-30/03Z]
Nimapad, ORISSA 16 cm [29/03-30/03Z]
Bhbaneswar, ORISSA 15 cm [29/03-30/03Z]
Phulbani, ORISSA 15 cm [29/03-30/03Z]
Khiramal, ORISSA 14 cm [29/03-30/03Z]
Kuchinda, ORISSA 14 cm [29/03-30/03Z]
Nayagarh, ORISSA 14 cm [29/03-30/03Z]
Kantamal, ORISSA 14 cm [29/03-30/03Z]
Alipingal, ORISSA 13 cm [29/03-30/03Z]
Dunguripalli, ORISSA 13 cm [29/03-30/03Z]
Jajpur, ORISSA 12 cm [29/03-30/03Z]
Jhumpura, ORISSA 12 cm [29/03-30/03Z]
Hirakud, ORISSA 12 cm [29/03-30/03Z]
Pipli, ORISSA 12 cm [29/03-30/03Z]
Tikabali, ORISSA 12 cm [29/03-30/03Z]
Harbhanga, ORISSA 12 cm [29/03-30/03Z]
Kakatpur, ORISSA 11 cm [29/03-30/03Z]
Joshipur, ORISSA 10 cm [29/03-30/03Z]
Sohella, ORISSA 10 cm [29/03-30/03Z]
Sonepur, ORISSA 10 cm [29/03-30/03Z]
Ambabhona, ORISSA 31 cm [30/03-31/03Z]
Pallahara, ORISSA 26 cm [30/03-31/03Z]
Bargarh, ORISSA 21 cm [30/03-31/03Z]
Bijepur, ORISSA 20 cm [30/03-31/03Z]
Nakatideul, ORISSA 19 cm [30/03-31/03Z]
Khairamal, ORISSA 19 cm [30/03-31/03Z]
Rengali, ORISSA 19 cm [30/03-31/03Z]
Phulbani, ORISSA 15 cm [30/03-31/03Z]
Rairakhol, ORISSA 14 cm [30/03-31/03Z]
Sambalpur, ORISSA 12 cm [30/03-31/03Z]
Kuchinda, ORISSA 12 cm [30/03-31/03Z]
Jamankira, ORISSA 12 cm [30/03-31/03Z]
Athamalik, ORISSA 12 cm [30/03-31/03Z]
Kantamal, ORISSA 11 cm [30/03-31/03Z]
Padampur, ORISSA 10 cm [30/03-31/03Z]
Rajkishore Nagar, ORISSA 10 cm [30/03-31/03Z]
Malanjkhand, MADHYA PRADESH 14 cm [30/03-31/03Z]
Baraseoni, MADHYA PRADESH 11 cm [30/03-31/03Z]
Katghora, CHHATTISGARH 19 cm [30/03-31/03Z]
Raipur, CHHATTISGARH 18 cm [30/03-31/03Z]
Arang, CHHATTISGARH 16 cm [30/03-31/03Z]
Rajim, CHHATTISGARH 15 cm [30/03-31/03Z]
Bilaspur, CHHATTISGARH 15 cm [30/03-31/03Z]
Gariaband, CHHATTISGARH 14 cm [30/03-31/03Z]
Sarangarh, CHHATTISGARH 14 cm [30/03-31/03Z]
Mahasamund, CHHATTISGARH 11 cm [30/03-31/03Z]
Dhamtari, CHHATTISGARH 10 cm [30/03-31/03Z]
Raigarh, CHHATTISGARH 10 cm [30/03-31/03Z]
Katangi, MADHYA PRADESH 18 cm [31/03-01/03Z]
Deori, MADHYA PRADESH 17 cm [31/03-01/03Z]
Indore, MADHYA PRADESH 16 cm [31/03-01/03Z]
Mhou, MADHYA PRADESH 16 cm [31/03-01/03Z]
Ratlam, MADHYA PRADESH 15 cm [31/03-01/03Z]
Panchmari, MADHYA PRADESH 14 cm [31/03-01/03Z]
Barnagar, MADHYA PRADESH 14 cm [31/03-01/03Z]
Khachrode, MADHYA PRADESH 14 cm [31/03-01/03Z]
Tarana, MADHYA PRADESH 13 cm [31/03-01/03Z]
Serohi, MADHYA PRADESH 13 cm [31/03-01/03Z]
Sailana, MADHYA PRADESH 12 cm [31/03-01/03Z]
Shahjapur, MADHYA PRADESH 12 cm [31/03-01/03Z]
Kurwai, MADHYA PRADESH 12 cm [31/03-01/03Z]
Mahidpur, MADHYA PRADESH 11 cm [31/03-01/03Z]
Khurai, MADHYA PRADESH 11 cm [31/03-01/03Z]
*************************************************************************
SOUTHWEST INDIAN OCEAN (SWI) - South Indian Ocean West of Longitude 90E
Activity for July: No tropical cyclones
*************************************************************************
NORTHWEST AUSTRALIA/SOUTHEAST INDIAN OCEAN (AUW) - From 90E to 135E
Activity for July: No tropical cyclones
*************************************************************************
NORTHEAST AUSTRALIA/CORAL SEA (AUE) - From 135E to 160E
Activity for July: No tropical cyclones
*************************************************************************
SOUTH PACIFIC (SPA) - South Pacific Ocean East of Longitude 160E
Activity for July: No tropical cyclones
South Pacific Tropical Activity for July
----------------------------------------
The Fiji TCWC issued gale warnings on 25 and 26 July in association
with a system classified as a weak LOW. The LOW moved from a position
near 20S/173W at 25/0000 UTC to near 22S/158W at 26/2000 UTC. Gales
of up to 40 kts were forecast to be occurring within 200 nm of the
center in the southeastern semicircle. No reference was made of this
system being tropical, and given the latitude and time of year, likely
was hybrid or non-tropical in nature. No track was included for this
LOW in the July cyclone tracks file.
*************************************************************************
SPECIAL FEATURE - SOURCES OF TROPICAL CYCLONE INFORMATION
The purpose of this section is to list some websites where many and
varied types of tropical cyclone information are archived. Many readers
will know about these already, but for the benefit of those who don't,
I wanted to include them.
(1) Aircraft Reconnaissance Information
---------------------------------------
Various types of messages from reconnaissance aircraft may be
retrieved from the following FTP site:
<ftp://ftp.nhc.noaa.gov/pub/products/nhc/recon/>
Information regarding how to interpret the coded reconnaissance
messages may be found at the following URL:
<http://www.nhc.noaa.gov/reconlist.shtml>
Links are also included to websites with further information about the
U. S. Air Force 53rd Weather Reconnaissance Squadron and the NOAA Air-
craft Operations Center.
(2) Archived Advisories
-----------------------
All the advisory products (public advisories, forecast/advisories,
strike probabilities, discussions, various graphics) issued by TPC/NHC
are archived on TPC's website. For the current year (using 2004 as an
example), the archived products can be found at:
<http://www.nhc.noaa.gov/archive/2004/index.shtml>
Links to tropical products archives for earlier years are available at
the following URL:
<http://www.nhc.noaa.gov/pastall.shtml>
JTWC warnings for past storms are archived on the NRL Monterry website:
<http://www.nrlmry.navy.mil/tc_pages/tc_home.html>
On the NRL site, the link to past years can be found in the upper left
corner of the screen.
I am not aware at the moment of any other TCWC which archives all
its tropical cyclone warning/advisory products for public access, but
if I learn of any, I will add them to this list.
(3) Satellite Imagery
---------------------
Satellite images of tropical cyclones in various sensor bands are
available on the NRL Monterrey and University of Wisconsin websites,
courtesy of Jeff Hawkins and Chris Velden and their associates. The
links are:
<http://www.nrlmry.navy.mil/tc_pages/tc_home.html>
<http://cimss.ssec.wisc.edu/tropic/tropic.html>
On the NRL site, the link to past years can be found in the upper left
corner of the screen. For the CIMSS site, a link to data archives is
located in the lower left portion of the screen.
Additional tropical satellite imagery, along with looping ability for
composite microwave imagery for the Western Hemisphere north of the
equator, can be found at:
(1) For the Eastern North Pacific:
<http://www.ssd.noaa.gov/PS/TROP/trop-epac.html>
(2) For the Atlantic, Gulf of Mexico and Caribbean Sea:
<http://www.ssd.noaa.gov/PS/TROP/trop-atl.html>
I'm sure there are other sites with available imagery available, and
as I learn of them, I will add the links to this list.
*************************************************************************
EXTRA FEATURE
In order to shorten the amount of typing in preparing the narrative
material, I have been in the habit of freely using abbreviations and
acronyms. I have tried to define most of these with the first usage
in a given summary, but I may have missed one now and then. Most of
these are probably understood by a majority of readers but perhaps a
few aren't clear to some. To remedy this I developed a Glossary of
Abbreviations and Acronyms which I first included in the August, 1998
summary. I don't normally include the Glossary in most months in
order to help keep them from being too long. If anyone would like to
receive a copy of the Glossary, please e-mail me and I'll be happy
to send them a copy.
*************************************************************************
AUTHOR'S NOTE: This summary should be considered a very preliminary
overview of the tropical cyclones that occur in each month. The cyclone
tracks (provided separately) will generally be based upon operational
warnings issued by the various tropical cyclone warning centers. The
information contained therein may differ somewhat from the tracking and
intensity information obtained from a "best-track" file which is based
on a detailed post-seasonal analysis of all available data. Information
on where to find official "best-track" files from the various warning
centers will be passed along from time to time.
The track files are not being sent via e-mail. They can be retrieved
from the archive sites listed below. (Note: I do have a limited e-mail
distribution list for the track files. If anyone wishes to receive
these via e-mail, please send me a message.)
Both the summaries and the track files are standard text files
created in DOS editor. Download to disk and use a viewer such as
Notepad or DOS editor to view the files.
The first summary in this series covered the month of October,
1997. Back issues can be obtained from the following websites
(courtesy of Michael Bath, Michael V. Padua, Michael Pitt, Chris
Landsea, and John Diebolt):
<http://australiasevereweather.com/cyclones/>
<http://www.typhoon2000.ph>
<http://mpittweather.com>
<ftp://ftp.aoml.noaa.gov/hrd/pub/landsea/padgett/>
<http://www.tropicalcyclone2005.com/>
Another website where much information about tropical cyclones may
be found is the website for the UK Meteorological Office. Their site
contains a lot of statistical information about tropical cyclones
globally on a monthly basis. The URL is:
<http://www.metoffice.gov.uk/weather/tropicalcyclone>
TROPICAL CYCLONE REPORTS AVAILABLE
JTWC now has available on its website the Annual Tropical Cyclone
Report (ATCR) for 2004 (2003-2004 season for the Southern Hemisphere).
ATCRs for earlier years are available also.
The URL is: <http://199.10.200.33/jtwc.html>
Also, TPC/NHC has available on its webpage nice "technicolor"
tracking charts for the 2004 Atlantic and Eastern North Pacific
tropical cyclones; also, storm reports for all the 2004 Atlantic
and Eastern North Pacific cyclones are now available, as well as
track charts and reports on storms from earlier years.
The URL is: <http://www.nhc.noaa.gov>
A special thanks to Michael Bath of McLeans Ridges, New South Wales,
Australia, for assisting me with proofreading the summaries.
PREPARED BY
Gary Padgett
E-mail: garyp@alaweb.com
Phone: 334-222-5327
Kevin Boyle (Eastern Atlantic, Western Northwest Pacific, South
China Sea)
E-mail: newchapelobservatory@btinternet.com
Huang Chunliang (Assistance with Western Northwest Pacific, South
China Sea)
E-mail: huangchunliang@hotmail.com
Simon Clarke (Northeast Australia/Coral Sea, South Pacific)
E-mail: saclarke@iprimus.com.au
*************************************************************************
*************************************************************************
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