Satellite Interpretation Message
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000
ATHW40 PHFO 230020
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT MAY 23 2015

BASED ON DATA THROUGH 0000 UTC MAY 23 2015

WATER VAPOR IMAGERY SHOWED AN UPPER LEVEL LOW NEAR 32N 151W.  AN
UPPER TROUGH EXTENDED FROM THE LOW SOUTHWEST TO 23N 155W.  THIS UPPER
LOW WAS MOVING NORTHEAST NEAR 25 MILES AN HOUR.  THE TROUGH WAS
SWINGING EASTWARD OR JUST SLIGHTLY TOWARD THE EAST SOUTHEAST.

A SURFACE LOW WAS LYING DIRECTLY BENEATH THE UPPER LOW.  AN ATTACHED
FRONT OUTWARD FROM THE SURFACE LOW AND EXTENDED SOUTH THROUGH 30N
147W TO 24N 154W TO 22N 165W.  BROKEN TO OVERCAST LAYERED CLOUDS
OCCUPIED THE FRONT NORTH OF 26N LATITUDE.  SOUTH OF 26N...A NARROW
BAND OF BROKEN LOW CLOUDS STRADDLED THE FRONT.  THE FRONT WAS MOVING
EAST AT 15 TO 20 MILES AN HOUR NORTH OF 24N...BUT IT WAS NEARLY
STATIONARY FURTHER SOUTH AND TOWARD THE WEST.

LIGHT WINDS ALLOWED CONVECTIVE HEATING TO PRODUCE CLOUD BUILD UPS
OVER THE ISLANDS THIS AFTERNOON.  AT 2 PM...IT WAS MOSTLY CLOUDY
OVER THE ALL THE ISLANDS EXCEPT MOLOKAI AND LANAI.  THE CENTRAL...
EAST AND SOUTHEAST PARTS OF LANAI WERE MOSTLY CLOUDY BUT ONLY A FEW
CLOUDS WERE NOTED OVER EAST MOLOKAI.

THE FRONTAL CLOUD BAND NEAR AND JUST NORTH OF KAUAI WAS ADDING TO
THE CLOUDINESS OVER THAT ISLAND.  AND A LARGE BUT DWINDLING CLUSTER
OF BROKEN TO OVERCAST LOW CLOUDS EXTENDING 240 MILES WEST SOUTHWEST
FROM THE BIG ISLAND WAS ADDING TO THE CLOUDINESS ALONG THE LEE SIDE
OF THAT ISLAND.

THE LOW CLOUDS NEAR KAUAI WERE DRIFTING SLOWLY SOUTHWARD.  THE
CLOUDS SEEN NEAR THE BIG ISLAND REMAINED NEARLY STATIONARY.  CLOUD
TOPS AROUND THE STATE WERE MOSTLY AROUND 13000 FEET.

$$




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