Satellite Interpretation Message
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000
ATHW40 PHFO 281225
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC THU MAY 28 2015

BASED ON DATA THROUGH 1200 UTC MAY 28 2015

AS OF 200 AM HST...WATER VAPOR IMAGERY SHOWED AN UPPER TROUGH
EXTENDING SOUTHWEST ACROSS HAWAII FROM AN UPPER LOW CENTERED NORTH
OF THE AREA NEAR 39N149W. PLENTY OF MIDDLE TO UPPER MOISTURE
ASSOCIATED WITH THIS UPPER TROUGH SUPPORTED A LARGE AREA OF BROKEN
TO OVERCAST LAYERED CLOUDS BETWEEN 25N AND 30N FROM 140W TO 150W.
THIS AREA OF CLOUDS WAS MOVING EASTWARD AROUND 50 MPH.

SCATTERED LOW-LEVEL CUMULUS CLOUDS WERE SHOWN WEST OF OAHU BETWEEN
10N AND 30N SOUTH OF A RIDGE AXIS. CLOUD MOTION WAS TOWARD THE
SOUTHWEST AT 10 TO 20 MPH. CLOUD TOPS WERE GENERALLY LESS THAN 10
THOUSAND FEET WITHIN THIS AREA.

AN AREA OF BROKEN TO OVERCAST LOW CLOUDS ASSOCIATED WITH WEAK LOW
PRESSURE OVER THE BIG ISLAND WAS SHOWN ACROSS THE BIG
ISLAND...MAUI...LANAI AND MOLOKAI. BROKEN TO OVERCAST LOW CLOUDS
WERE SHOWN ACROSS OAHU...EXCEPT FOR THE SOUTHEASTERN SECTION OF THE
ISLAND WHERE SCATTERED LOW CLOUDS WERE OBSERVED. OVERCAST CONDITIONS
WERE SHOWN ACROSS KAUAI AND THE ADJACENT WATERS. CLOUD TOPS WERE
LESS THAN 15 THOUSAND FEE ACROSS THE ISLANDS.

SOUTHEAST OF THE ISLANDS...SCATTERED THUNDERSTORMS WERE OCCURRING
WITHIN THE ITCZ BETWEEN 5N AND 12N FROM 140W TO 147W. CLOUD TOPS
RANGED FROM 45 TO 50 THOUSAND FEET. CLOUD MOTION WAS TOWARD THE WEST
AROUND 25 MPH.

$$

AG





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