Satellite Interpretation Message
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000
ATHW40 PHFO 011832
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC SAT OCT 01 2016

BASED ON DATA THROUGH 1800 UTC OCTOBER 01 2016

A MOIST TRADE WIND FLOW IS OBSERVED ACROSS THE MAIN HAWAIIAN
ISLANDS THIS MORNING...WITH SATELLITE-DERIVED PRECIPITABLE WATER
/PW/ ESTIMATES OF AROUND 1.7 INCHES NOTED OVER THE AREA. SCATTERED
TO BROKEN CUMULUS CLOUDS MOVING FROM THE EAST AROUND 25 MPH...AND
CUMULUS CLOUD TOPS ARE GENERALLY RUNNING AROUND 9000 FT...WHILE
PATCHES OF ENHANCED CLOUDS RISE TO AROUND 15000 FT. ONE SUCH AREA
OF ENHANCED TOPS IS MOVING ONTO WINDWARD BIG ISLAND...AND ANOTHER
BATCH IS SKIRTING JUST NORTH OF OAHU AND ADVANCING TOWARD KAUAI.
UNDER THE MOIST TRADE WIND FLOW...BROKEN TO OVERCAST LOW CLOUDS
COVER WINDWARD SLOPES OF ALL ISLANDS...WHILE SCATTERED TO LOCALLY
BROKEN LOW CLOUDS SPILL OVER TO LEEWARD SECTIONS OF OAHU.

MOISTURE INCREASES TO THE EAST OF THE ISLANDS AND TOPS OUT ABOUT 2
INCHES NEAR THE LOW CLOUD SWIRL MARKING THE REMNANTS OF FORMER TC
ULIKA. THIS FEATURE IS LOCATED ABOUT 400 MILES EAST OF THE BIG
ISLAND AND IS TRAVELING TOWARD THE WEST-SOUTHWEST NEAR 25 MPH. A
FIELD OF BROKEN LOW CLOUDS EXTENDS 250 MILES TO THE NORTH OF THE
LOW.

THE LOCAL ENHANCEMENT OF CUMULUS CLOUDS NEAR THE ISLANDS IS DUE
TO A SHARP...NEARLY STATIONARY UPPER LEVEL TROUGH RUNNING ABOUT
250 MILES NORTH OF KAUAI ALONG 30N145W...26N160W...25N175W...AND
22N180. THIS FEATURE IS TRIGGERING SCATTERED THUNDERSTORMS
SOUTHWEST OF THE ISLANDS FROM 16N TO 06N BETWEEN 157W AND 174W AND
FROM 22N TO 06N W OF 174W. SOUTHWEST TO WEST WINDS ALOFT ARE
TAPPING UPPER LEVEL MOISTURE FROM THESE THUNDERSTORMS...SENDING
SCATTERED HIGH CLOUDS OVER THE ISLANDS.

$$
WROE



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