Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 240013
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SUN MAY 24 2015

BASED ON DATA THROUGH 0000 UTC MAY 24 2015

AS OF 200 PM HST...WATER VAPOR SATELLITE IMAGERY SHOWED AN UPPER LOW
CENTERED NEAR 32N150W...WITH A TROUGH EXTENDING SOUTH TO JUST EAST
OF THE BIG ISLAND. A COLD FRONT ASSOCIATED WITH THIS UPPER FEATURE
EXTENDED SOUTH AND SOUTHWEST FROM 30N146W TO JUST NORTHEAST OF THE
BIG ISLAND. LAYERED CLOUDS ASSOCIATED WITH THIS SYSTEM WERE SHOWN
ALONG AND AHEAD OF THE FRONTAL BOUNDARY BETWEEN 25N AND 30N FROM
145W TO 140W. MAXIMUM CLOUD TOPS EXTENDED AS HIGH AS 40 TO 45
THOUSAND FEET WITHIN THIS AREA. FARTHER SOUTH AND SOUTHWEST FROM
THIS AREA TO THE ISLANDS...MOSTLY LOW CLOUDS WERE SHOWN WITH TOPS
GENERALLY BELOW 15 THOUSAND FEET. OVERALL MOTION OF THIS SYSTEM WAS
TOWARD THE EAST AROUND 25 MPH NORTH OF 23N AND NEARLY STATIONARY
ELSEWHERE.

MOSTLY CLEAR SKIES WERE SHOWN ACROSS NIIHAU. SCATTERED CUMULUS
CLOUDS COVERED PORTIONS OF KAUAI...ESPECIALLY THE NORTHERN HALF OF
THE ISLAND. BROKEN TO OVERCAST LOW CLOUDS WERE SHOWN OVER WINDWARD
SLOPES OF OAHU WITH MOSTLY CLEAR SKIES ELSEWHERE. A STABLE OVERCAST
STRATUS DECK FOLLOWING THE AFOREMENTIONED FRONTAL BOUNDARY WAS
IMPACTING THE NORTHERN COAST OF MOLOKAI AND THE BULK OF MAUI. LOCAL
OBSERVATIONS BENEATH THIS STRATUS DECK WERE INDICATING BASES AROUND
5 THOUSAND FEET AT MOLOKAI AND MAUI. SCATTERED TO BROKEN LOW CLOUDS
WERE SHOWN OVER THE EAST HALF OF LANAI. BROKEN TO OVERCAST LOW
CLOUDS WERE SHOWN ACROSS THE MAJORITY OF THE BIG ISLAND...EXCEPT FOR
THE SUMMITS WHERE CLEAR CONDITIONS WERE OCCURRING.

BROKEN STRATOCUMULUS CLOUDS WERE SHOWN NORTH OF THE ISLANDS TO 30N
AND BEYOND FROM 165W TO 150W TRAILING THE FRONTAL BOUNDARY. OVERALL
CLOUD MOTION WAS TOWARD THE SOUTH AND SOUTHEAST AROUND 20 MPH. CLOUD
TOPS WERE LESS THAN 15 THOUSAND FEET.

FAR S OF THE ISLANDS...SMALL CLUSTERS OF THUNDERSTORMS CAN BE
OBSERVED NEAR THE INTERTROPICAL CONVERGENCE ZONE BETWEEN THE EQUATOR
AND 10N FROM 140W TO 150W WITH CLOUD TOPS RANGING FROM 50 TO 55
THOUSAND FEET.

$$

AG





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