Satellite Interpretation Message
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000
ATHW40 PHFO 081823
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC MON FEB 08 2016

BASED ON DATA THROUGH 1800 UTC FEBRUARY 08 2016

THE MAIN HAWAIIAN ISLANDS LIE UNDER A DRY AND STABLE AIRMASS
BEHIND A FRONT THAT IS STALLING ABOUT 300 MILES SOUTHEAST OF THE
BIG ISLAND. LOW CLOUD MOTIONS IN THE FIRST VISIBLE SATELLITE IMAGES
OF THE DAY SHOW AN EASTWARD-MOVING SURFACE HIGH CENTERED ABOUT 250
MILES NORTHWEST OF KAUAI WITH A LOW LEVEL RIDGE EXTENDING EASTWARD
BETWEEN 22N AND 23N...AND RECENT POLAR ORBITER DATA SHOW
PRECIPITABLE WATER VALUES RUNNING ONLY ABOUT 65 PERCENT OF NORMAL.
AS A RESULT...VERY STABLE...SCATTERED TO LOCALLY BROKEN
STRATOCUMULUS CLOUDS WITH TOPS AROUND 3C...ABOUT 7500 FT...ARE
MOVING TOWARD THE SOUTH-SOUTHWEST OVER THE ISLANDS. THESE CLOUDS
ARE PILED UP ALONG NORTH AND NORTHEAST FACING SLOPES OF THE BIG
ISLAND...WITH ANOTHER CLUSTER OBSERVED ON NORTH SLOPES OF KAUAI.
ONLY SMALL PATCHES OF BROKEN LOW CLOUDS ARE FOUND ON OAHU...
MOLOKAI AND MAUI...WHILE LEEWARD SKIES ARE MOSTLY CLEAR.

THE FRONT THAT MOVED THROUGH THE ISLANDS IS MARKED BY A 150 TO 200
MILE WIDE BAND OF BROKEN TO OVERCAST LOW CLOUDS ALONG 24N140W TO
15N153W. ITS PARENT LOW IS CENTERED JUST NORTH OF THE AREA NEAR
33N146W AND IS LIFTING TOWARD THE NORTHEAST. AN AREA OF SCATTERED
THUNDERSTORMS WITH TOPS TO 30000 FT IS FOUND TO THE SOUTH OF THE
LOW IN THE AREA NORTH OF 28N BETWEEN 143W AND 149W. A STRONG JET
STREAM ALOFT ASSOCIATED WITH THE UPPER LEVEL TROUGH DRIVING THE
FRONT IS ALSO GENERATING A SHIELD OF BROKEN HIGH CLOUDS NORTH OF
26N BETWEEN 153W AND 163W.

ELSEWHERE...A DRY AND STABLE SOUTHWESTERLY LOW LEVEL FLOW PREVAILS
OVER THE NORTHWEST HAWAIIAN ISLANDS...AND LIGHT THUNDERSTORM
ACTIVITY WITHIN THE ITCZ IS CONFINED SOUTH OF 10N.

$$


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