Satellite Interpretation Message
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000
ATHW40 PHFO 061832
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC TUE DEC 06 2016

BASED ON DATA THROUGH 1800 UTC DECEMBER 06 2016

TWO LOW PRESSURE SYSTEMS ARE AFFECTING THE NORTH-CENTRAL PACIFIC
THIS MORNING WITH A DISSIPATING SURFACE TROUGH JUST EAST OF THE
BIG ISLAND AND A DEVELOPING SYSTEM CENTERED NEAR LISIANSKI
ISLAND. THE DEVELOPING SYSTEM OVER THE NORTHWEST HAWAIIAN ISLANDS
HAS CUMULONIMBUS CLOUDS EXTENDING 200 MILES FROM THE CENTER...WHICH
IS LOCATED NEAR 55 MILES SOUTH OF LISIANSKI ISLAND. THESE
THUNDERSTORMS ARE RISING TO HEIGHTS AROUND 43 THOUSAND FEET AS THE
WHOLE SYSTEM MOVES TO THE EAST NEAR 25 MILES PER HOUR. BEYOND THE
CUMULONIMBUS BROKEN TO OVERCAST LAYERED CLOUDS EXTEND SEVERAL
HUNDRED MILES TO THE NORTHEAST. THE OTHER TROUGH ALONG A CURVE
FROM 30N 147W TO JUST EAST OF THE BIG ISLAND TO 13N 160W IS
PRODUCING A FEW TOWERING CUMULUS CLOUDS NORTHEAST OF 151W. THESE
CLOUDS...WHICH HAVE BEEN RISING TO HEIGHTS OF 36 THOUSAND
FEET...HAVE BEEN DECREASING IN AREAL COVERAGE AS THEY MOVE TO THE
NORTHEAST AROUND 20 MILE PER HOUR. LAYERED CLOUDS EXTEND OUT 200
MILES FROM THE CENTER OF THE CURVE.

ELSEWHERE IN THE MID TO UPPER LEVELS THE TWO TROUGHS ARE HELPING
TO ADVECT MOISTURE FROM SOUTH OF 10N TO AS FAR NORTH AS 18N.
MOISTURE FROM THE INTER-TROPICAL CONVERGENCE ZONE IS BEING PULLED
NORTHWARD NEAR 160W WITH AN ISOLATED...NEARLY STATIONARY
CUMULONIMBUS CLOUD LOCATED AT 11N 160W. ALSO...BROKEN LAYERED
CLOUDS HAVE CREPT NORTH OF 10N AT 170W WITH SCATTERED CIRRUS
CLOUDS SOUTH OF A LINE FROM 10N 180W TO 18N 168W TO 18N 162W TO
10N 160W.

IN THE LOWER TO MID LEVELS OUTSIDE OF THE TROUGHS...AREAS OF
BROKEN TO OVERCAST STRATOCUMULUS AND CUMULUS CLOUDS ARE SPREAD
ACROSS THE AREA. GENERALLY THESE CLOUDS ARE RISING TO HEIGHTS
BETWEEN 7 AND 11 THOUSAND FEET WITH NOT MUCH MOVEMENT.

IN THE VICINITY OF THE MAIN HAWAIIAN ISLANDS...THE TROUGH NEAR
THE BIG ISLAND IS PRODUCING SCATTERED CUMULUS CLOUDS ACROSS THE
AREA AS SCATTERED TO BROKEN STRATOCUMULUS CLOUDS ARE AFFECTING
MAUI COUNTY AND THE BIG ISLAND. AT 1800 UTC KAUAI...NIIHAU AND
OAHU WERE MOSTLY SUNNY. MOLOKAI WAS PARTLY CLOUDY ON ITS EASTERN
END AND MOSTLY SUNNY ELSEWHERE. MAUI AND LANAI WERE MOSTLY CLOUDY.
KAHOOLAWE WAS PARTLY SUNNY. THE BIG ISLAND WAS MOSTLY CLOUDY.

$$

EFFECTIVE WEDNESDAY...DECEMBER 14 2016...THE NWS WILL DISCONTINUE
THIS PRODUCT. FOR QUESTIONS...PLEASE CONTACT TOM EVANS AT
808-973-5273. THE OFFICIAL CHANGE NOTICE CAN BE FOUND AT...ALL
LOWER CASE...HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM


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