Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 251831
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC MON MAY 25 2015

BASED ON DATA THROUGH 1800 UTC MAY 25 2015

AS OF 800 AM HST...WATER VAPOR SATELLITE IMAGERY SHOWED AN UPPER LOW
CENTERED NEAR 30N140W...WITH A TROUGH EXTENDING SOUTH TO 20N140W. A
COLD FRONT ASSOCIATED WITH THIS UPPER FEATURE EXTENDED SOUTH AND
SOUTHWEST FROM 30N138W TO AROUND 22N140W. LAYERED CLOUDS ASSOCIATED
WITH THIS SYSTEM WERE SHOWN EAST OF 140W AND NORTH OF 24N WITH
MAINLY A NARROW LOW-LEVEL CLOUD BAND EXTENDING SOUTH-SOUTHWEST TO
20N BETWEEN 145W AND 140W. CLOUD TOPS ALONG THIS BAND OR WEST OF
140W WERE LESS THAN 10 THOUSAND FEET. OVERALL MOTION OF THESE
CLOUDS WERE TOWARD THE EAST AROUND 20 MPH NORTH OF 24N AND NEARLY
STATIONARY FARTHER SOUTH AND SOUTHWEST ALONG THE BOUNDARY.

BROKEN TO OVERCAST LOW CLOUDS WERE SHOWN ACROSS NIIHAU AND KAUAI
WITH ADDITIONAL COVERAGE APPROACHING FROM THE NORTH. MOSTLY CLEAR
SKIES WERE SHOWN OVER OAHU WITH THE EXCEPTION OF A FEW LOW CLOUDS
SHOWN OVER AND AROUND THE KOOLAUS. SIMILAR CONDITIONS WERE SHOWN
ACROSS MUCH OF MOLOKAI...MAUI AND LANAI WITH THE EXCEPTION OF A
BATCH OF BROKEN TO OVERCAST STRATOCUMULUS ALONG THE NORTHERN COASTS
OF MOLOKAI AND MAUI. OVER THE BIG ISLAND...OVERCAST LOW CLOUDS WERE
OVER THE HAMAKUA COAST AND THE SOUTHEAST COAST WITH MOSTLY CLEAR
SKIES ELSEWHERE OR FROM THE SUMMITS TO THE LEEWARD AREAS.

FAR S OF THE ISLANDS...NUMEROUS THUNDERSTORMS WAS OBSERVED WITHIN
THE INTERTROPICAL CONVERGENCE ZONE BETWEEN THE EQUATOR AND 10N FROM
140W TO 175W. CLOUD TOPS RANGED FROM 50 TO 60 THOUSAND FEET.

$$

AG





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