Satellite Interpretation Message
Issued by NWS

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534
ATHW40 PHFO 041227
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC WED MAY 04 2016

BASED ON DATA THROUGH 1200 UTC MAY 04 2016

AT 200 AM HST...SATELLITE IMAGERY SHOWED A LARGE AREA OF SCATTERED
TO BROKEN CUMULUS CLOUDS BETWEEN 22N AND 30N FROM 140W TO THE MAIN
HAWAIIAN ISLANDS. THESE CLOUDS WERE TRACKING TOWARD THE WEST SOUTH
OF A RIDGE OF HIGH PRESSURE AT 15 TO 25 MPH. CLOUD TOPS WITHIN THIS
AREA WERE LESS THAN 15 THOUSAND FEET.

BROKEN TO OVERCAST SHOWERY LOW CLOUDS ASSOCIATED WITH WHAT WAS LEFT
OF A DISSIPATING CLOUD BAND THAT HAD BECOME VERY DIFFUSE OVER THE
PAST SEVERAL HOURS CONTINUED TO IMPACT THE ISLANDS...ESPECIALLY
OAHU...KAUAI AND THEIR SURROUNDING WATERS. MOST OF THIS COVERAGE WAS
REMAINING JUST NORTH OF OAHU...BUT TRANSLATING TO OVERCAST
CONDITIONS PERIODICALLY OVER MUCH OF KAUAI. SCATTERED CUMULUS CLOUDS
WERE LOCATED OVER THE NORTHEAST COASTAL SECTIONS OF MOLOKAI WITH
MOSTLY CLEAR TO PARTLY CLOUDY CONDITIONS ELSEWHERE OVER THE ISLAND.
MOST OF THE CLOUDS WERE FOCUSING OVER THE WINDWARD SECTIONS ON MAUI
AND THE ADJACENT WATERS TO THE NORTH AND NORTHEAST. THE BULK OF THE
CLOUD COVERAGE OVER THE BIG ISLAND WAS PUSHING ASHORE ALONG THE
WINDWARD COAST EXTENDING NORTHWEST ALONG THE HAMAKUA COAST FROM THE
COASTAL PUNA DISTRICT. ELSEWHERE...MOSTLY CLEAR TO PARTLY CLOUDY
CONDITIONS PREVAILED OVER THE ISLAND.

SCATTERED TO BROKEN UPPER-LEVEL CLOUDS WERE SHOWN LIFTING NORTH AND
NORTHEAST WELL SOUTHWEST OF THE MAIN HAWAIIAN ISLANDS DUE TO A WEAK
UPPER LOW CENTERED AROUND 19N 175W. SOME OF THESE UPPER CLOUDS WERE
PASSING JUST SOUTH OF THE BIG ISLAND.

THE LEADING EDGE OF A CLOUD BAND ASSOCIATED WITH AN APPROACHING COLD
FRONT WAS SHOWN ENTERING THE NORTHWEST SECTION OF THE DISCUSSION
AREA. MOSTLY LOW CLOUDS WITH A MIX OF A FEW MIDDLE AND HIGH CLOUDS
WERE SHOWN BETWEEN 26N AND 30N FROM 173W TO THE DATE LINE.

$$

GIBBS



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