Satellite Interpretation Message
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000
ATHW40 PHFO 201836
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC SAT SEP 20 2014

BASED ON DATA THROUGH 1800 UTC SEPTEMBER 20 2014

TWO HIGH PRESSURES FAR TO THE NORTHEAST AND NORTHWEST ARE
SANDWICHING A FRONTAL BOUNDARY TO THE NORTH. THE BOUNDARY IS DENOTED
BY OVERCAST LOW CLOUDS MOVING SLOWLY SOUTH BETWEEN 27N TO 30N FROM
154W TO 170W. ANOTHER BOUNDARY RUNS NORTH TO SOUTH ALONG 143W FROM
24N TO 30N WITH A 100-MILE WIDE BAND OF OVERCAST LOW CLOUDS MOVING
SLOWLY EAST. OTHERWISE... THE TWO HIGH PRESSURES ARE MOVING
SCATTERED TO BROKEN LOW CLOUDS WESTWARD ACROSS THE AREA.

THUNDERSTORMS ASSOCIATED WITH A TROUGH 400 MILES SOUTH OF HONOLULU
ARE MOVING 10 MPH TOWARD THE WEST WITH CLOUD TOPS FLARING TO 50
THOUSAND FEET. AN UPPER LEVEL TROUGH IS PROVIDING SOME INSTABILITY
TO HELP THESE THUNDERSTORMS FORM. THE TROUGH IS LOCATED ALONG 30N
145W TO 20N 160W. IN THE DEEP TROPICS... SCATTERED THUNDERSTORMS DOT
THE AREA BETWEEN 4N AND 12N FROM 140W TO THE DATELINE.

OVER HAWAII...SKIES ARE MOSTLY CLEAR THIS MORNING WITH THE
EXCEPTION OF PARTLY CLOUDY SKIES OVER THE WINDWARD AND SOUTHEAST
BIG ISLAND AND THE HANA AREA ON MAUI. OVERCAST LOW CLOUDS COVER THE
COASTAL WATERS WEST OF THE BIG ISLAND AND SOUTH OF MAUI COUNTY.
OTHERWISE... COASTAL WATERS HAVE PARTLY CLOUDY SKIES.

$$

MORRISON




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