Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 211830
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC SUN DEC 21 2014

BASED ON DATA THROUGH 1800 UTC DECEMBER 21 2014

A FRONTAL CLOUD BAND WAS JUST UNDER 200 MILES NORTHWEST OF KAUAI
THIS MORNING.  THE ACTUAL FRONT WAS ABOUT 260 MILES WEST NORTHWEST
OF KAUAI AT 8 AM THIS MORNING.  PREFRONTAL CLOUDS PRECEDED THE FRONT
AND THE MAIN CLOUD BAND.  THE FRONT WAS MOVING TOWARD THE ISLANDS
AROUND 15 MILES AN HOUR.

THE EAST EDGE OF THE ASSOCIATED CLOUD BAND WHICH INCLUDED THE
PREFRONTAL CLOUDS STRETCHED THROUGH 30N 157W TO 24N 163W TO 20N
180E.  THE BAND CONSISTED OF BROKEN TO OVERCAST LOW CLOUDS S OF 25N
LATITUDE AND OVERCAST LOW TO MID LEVEL CLOUDS BETWEEN 25N AND 30N.
THE BAND WAS MOSTLY BETWEEN 200 AND 225 MILES WIDE BETWEEN 20N AND
30N.  BEHIND THE FRONTAL BAND...NUMEROUS BUT WIDELY SEPARATED
PATCHES PATCHES OF SCATTERED TO BROKEN LOW CLOUDS WERE COMMON.

SKIES WERE MOSTLY CLEAR BETWEEN THE FRONT AND KAUAI.  BUT SEVERAL
LARGE CLUSTERS OF BROKEN TO OVERCAST LOW CLOUDS...A MIX OF
STRATOCUMULUS AND CUMULUS CLOUDS WERE SPREAD OUT ACROSS THE STATE
FROM THE KAUAI CHANNEL TO THE BIG ISLAND.  THESE CLOUDS FILLED MUCH
OF THE REGION BETWEEN 20N AND 20N BETWEEN 168W AND 140W.  THE LOW
CLOUDS WERE MOVING WEST INTO THE BIG ISLAND THEN SPLITTING WITH
SOME GOING NORTHWEST TO THE NORTH OF APUA POINT.  OTHER CLOUDS WERE
CONTINUING WEST TO THE SOUTH OF APUA POINT...THE EASTERNMOST POINT
ON THE BIG ISLAND.  THE CLOUDS EAST OF THE MAUI COUNTY AND OAHU
WERE FLOWING TOWARD THE NORTH.  BUT THOSE IN THE IMMEDIATE VICINITY
OF THOSE ISLANDS APPEARED TO BE FAIRLY STAGNANT.

AT 8 AM...SKIES WERE MOSTLY CLEAR OVER KAUAI...MAUI AND MOLOKAI AS
WELL AS OVER MOST OF THE BIG ISLAND.  SOME CLOUDY SKIES WERE NOTED
OVER ALL BUT THE EAST PART OF OAHU AND OVER THE EAST PART OF THE BIG
ISLAND...MAINLY THE PUNA DISTRICT.  LANAI WAS MOSTLY CLOUDY AS ONE
LARGE CLOUD CLUSTER SAT JUST SOUTHWEST OF THAT ISLAND.

$$





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