Satellite Interpretation Message
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000
ATHW40 PHFO 271830
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC FRI FEB 27 2015

BASED ON DATA THROUGH 1800 UTC FEBRUARY 27 2015

A WEAKENING FRONT WAS LYING ACROSS OAHU THIS MORNING.  THIS FRONTAL
BOUNDARY STRETCHED THROUGH 30N 158W TO WEAK SURFACE LOW NEAR 26N
158W TO 24N 157W ACROSS OAHU TO NEAR 19N 163W.  ISOLATED
THUNDERSTORMS WERE FIRING UP ALONG THE FRONT BETWEEN 23N AND 30N.
MUCH SMALL AND BRIEF THUNDERSTORMS WERE FORMING ALONG THE FRONT FROM
20N TO 23N.

THE ASSOCIATED FRONTAL CLOUD BAND WAS VERY NARROW SOUTH OF 25N
LATITUDE.  AND THE CLOUDS WITHIN IT WERE FAIRLY FRAGMENTED AND
MOSTLY BROKEN LOW TO MID LEVEL CLOUDS WITH SOME CIRRUS OCCASIONALLY
FLOWING OVER IT.  THAT PART OF THE FRONTAL BAND NORTH OF 25N
CONSISTED OF OVERCAST CLOUD LAYERS WITH TOPS...MAINLY FROM THE
THUNDERSTORMS...UP NEAR 40000 FEET.  THE FRONT WAS NEARLY
STATIONARY.  THE WEAK LOW WAS DRIFTING SLOWLY NORTHEASTWARD.

A STABLE AIR MASS ALSO RESIDED IN THE AREA JUST EAST OF THE FRONT...
FROM 23N TO 30N BETWEEN THE FRONT AND 150W LONGITUDE.  CLUSTERS OF
BROKEN LAYERED CLOUDS AND A FEW ISOLATED THUNDERSTORMS WERE NOTED IN
THIS AREA.  THESE CLOUDS WERE FLOWING NORTHWARD.

ANOTHER FRONT WAS SEEN WELL NORTHWEST OF THE STATE...STRETCHING
THROUGH 30N 175W TO 28N 180E...AND CONTINUING WEST TO 28N 173E.
THAT FRONT WAS FAIRLY WEAK.  THAT PART OF THE FRONT ALONG 30N WAS
MOVING EAST NEAR 30 MILES AN HOUR.  ALONG 180E...THE FRONT WAS
STATIONARY.  THE FRONTAL BAND CONSISTED OF BROKEN TO OVERCAST LOW
CLOUDS SOUTH OF 30N.

WATER VAPOR IMAGERY SHOWED A LARGE UPPER LEVEL TROUGH EXTENDING
SOUTHEAST FROM AN UPPER LOW NEAR 42N 172W TO NEAR OR JUST NORTH OF
KAUAI.  THE TROUGH WAS MOVING SLOWLY EAST AND KEEPING THE AIR MASS
OVER THE STATE UNSTABLE.

AT 8 AM...SKIES WERE CLOUDY TO MOSTLY CLOUDY OVER OAHU AND OVER MUCH
OF THE KAIWI CHANNEL TO WEST MOLOKAI.  KAUAI AND THE SOUTH POINT
AREA OF THE BIG ISLAND HAD SOME SMALL CLUSTERS OF BROKEN TO OVERCAST
LOW CLOUDS OVERHEAD EXCEPT FOR CLEAR SKIES ON THE EAST SIDE.  EAST
MAUI HAD SOME PATCHES OF SCATTERED TO BROKEN LOW CLOUDS.  THE REST
OF THE STATE WAS SUNNY TO MOSTLY SUNNY.

$$





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