From: LDM Weather (ldm@WEATHER3.ADMIN.NIU.EDU)
Date: Sun Oct 26 2008 - 20:29:52 EDT
556
ATHW40 PHFO 270029
SIMHI
HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC MON OCT 27 2008
BASED ON DATA THROUGH 0000 UTC OCTOBER 27 2008
A WEAK NORTH TO SOUTH ORIENTED SURFACE TROUGH LOCATED JUST WEST OF
OAHU WAS MAINTAINING MOSTLY CLOUDY SKIES WITH SCATTERED SHOWERS IN
THE VICINITY OF THAT ISLAND EARLY THIS AFTERNOON. SKIES HAVE BECOME
MOSTLY CLOUDY OVER THE INTERIOR OF MOST OF THE OTHER HAWAIIAN
ISLANDS.
BROKEN TO LOCALLY OVERCAST LOW CLOUDS WITH EMBEDDED SCATTERED
SHOWERS WERE OVER THE COASTAL WATERS SURROUNDING OAHU...INCLUDING
THE KAIWI CHANNEL. SCATTERED TO LOCALLY BROKEN LOW CLOUDS WERE ALSO
OVER THE COASTAL WATERS ADJACENT TO KAUAI...WHILE SCATTERED LOW
CLOUDS WERE IN THE VICINITY OF MOLOKAI AND THE SOUTHEASTERN BIG
ISLAND. THE INDIVIDUAL LOW CLOUDS ELEMENTS OVER THE COASTAL WATERS
WERE GENERALLY MOVING TOWARD THE WEST NORTHWEST AT ABOUT 10 MPH FROM
THE BIG ISLAND TO OAHU. THE LOW CLOUDS IN THE VICINITY OF KAUAI...
WHICH APPEARED TO BE JUST WEST OF THE SURFACE TROUGH...WERE MOVING
TOWARD THE SOUTH SOUTHWEST AT LESS THAN 10 MPH. SOUTH OF THE BIG
ISLAND...THE LOW CLOUDS WERE MOVING WESTWARD AT 10 TO 15 MPH. THE
HIGHEST TOPS OF THE LOW CLOUDS OVER THE OCEAN IN THE VICINITY OF THE
ISLANDS WERE ESTIMATED TO BE ABOUT 13 THOUSAND FEET NEAR OAHU.
AS OF 200 PM HST SUNDAY...SCATTERED TO BROKEN LOW CLOUDS COVERED
MANY PARTS OF KAUAI. BROKEN TO OVERCAST LOW CLOUDS WERE ACROSS OAHU
AND MOST OF MOLOKAI. BROKEN TO LOCALLY OVERCAST LOW CLOUDS WERE
ABOVE NEARLY ALL OF LANAI. ON MAUI...SCATTERED TO BROKEN LOW CLOUDS
WERE OVER PARTS OF THE WESTERN MOUNTAINS...THE EASTERN SHORELINE...
THE SOUTH CENTRAL VALLEY...AND MOST OF THE LOWER SLOPES OF
HALEAKALA. BROKEN TO LOCALLY OVERCAST LOW CLOUDS WERE OVER MOST OF
THE INTERIOR OF THE BIG ISLAND BELOW THE SUMMITS OF MAUNA LOA AND
MAUNA KEA.
ACCORDING TO WATER VAPOR IMAGERY AND SATELLITE DERIVED UPPER LEVEL
WINDS...THE AXIS OF AN UPPER TROPOSPHERIC TROUGH EXTENDED FROM NEAR
27N 151W TO A POINT ABOUT 110 MILES EAST OF HILO. THIS FEATURE ALOFT
HAS PROPAGATED EASTWARD AT ABOUT 20 MPH DURING THE PAST 6 HOURS. A
LARGER UPPER TROPOSPHERIC TROUGH AXIS EXTENDED FROM NEAR 30N 172W TO
24.5N 180W. THIS SECOND UPPER LEVEL SYSTEM HAS SHIFTED SOUTHEASTWARD
AT ABOUT 45 MPH DURING THE PAST 6 HOURS.
ELSEWHERE...THE LEADING EDGE OF AN APPROXIMATELY 150 MILE WIDE BAND
OF BROKEN TO OVERCAST LOW CLOUDS WITH EMBEDDED SHOWERS AND ISOLATED
THUNDERSTORMS ASSOCIATED WITH A SHEAR LINE AND THE SECOND UPPER
TROPOSPHERIC TROUGH DESCRIBED ABOVE EXTENDED FROM NEAR 30N 157.5W TO
26N 164.5W TO 22N 178W...OR ABOUT 400 MILES NORTHEAST OF LIHUE. THIS
LEADING EDGE HAS MOVED TOWARD THE EAST SOUTHEAST AT ABOUT 15 MPH
DURING THE PAST 6 HOURS. THE HIGHEST TOPS OF THE CUMULONIMBUS
CLOUDS...OR CB...ASSOCIATED WITH THIS SYSTEM WERE ESTIMATED TO BE
ALMOST 42 THOUSAND FEET.
IN THE DEEP TROPICS FAR SOUTH OF THE ALOHA STATE...THE INTERTROPICAL
CONVERGENCE ZONE...OR ITCZ...EXTENDED FROM NEAR 10.5N 140W TO 08N
159W TO 09N 170.5W TO 08N 180W. SCATTERED MODERATE TO LOCALLY STRONG
THUNDERSTORMS WERE WITHIN 150 MILES NORTH OF THE ITCZ WEST OF 154W.
ISOLATED MODERATE THUNDERSTORMS WERE ELSEWHERE WITHIN 90 MILES OF
THE ITCZ. THE HIGHEST TOPS OF THE CB ALONG THE ITCZ WERE ESTIMATED
TO BE NEAR 51 THOUSAND FEET.
$$
HOUSTON
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