Satellite Interpretation Message
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000
ATHW40 PHFO 251832
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC THU DEC 25 2014

BASED ON DATA THROUGH 1800 UTC DECEMBER 25 2014

WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW CENTERED NEAR
28N157W...OR OVER 400 MILES NORTH OF HONOLULU. THIS LOW IS MOVING TO
THE NORTH-NORTHEAST AT 15 MPH. BROKEN TO OVERCAST LAYERED CLOUDS ARE
LOCATED NEAR AND TO THE NORTH OF THE LOW...AND ISOLATED TOWERING
CUMULUS AND CUMULONIMBUS CLOUDS ARE LOCATED WITHIN 200 MILES OF THE
CENTER OF THE LOW. CLOUD TOPS EXTEND UP TO 30000 FT.

A BROAD TROUGH EXTENDS SOUTHWARD FROM THE LOW ACROSS THE MAIN
HAWAIIAN ISLANDS. A 100 MPH SOUTH TO SOUTHWESTERLY UPPER LEVEL LEVEL
JET STREAM IS LOCATED ALONG THE EASTERN EDGE OF THE TROUGH. BROKEN
TO OVERCAST LAYERED CLOUDS ARE LOCATED TO THE EAST OF THE JET.
THESE CLOUDS ARE LOCATED GENERALLY EAST OF A LINE FROM 30N149W TO
17N153W...PASSING ABOUT 200 MILES EAST OF THE BIG ISLAND AT THE
CLOSEST POINT. ISOLATED CUMULONIMBUS CLOUDS ARE EMBEDDED WITHIN THIS
CLOUD BAND AS WELL...WITH TOPS EXTENDING UP TO 42000 FT. THE LAYERED
CLOUD BAND IS ABOUT 300 MILES WIDE. BROKEN TO OVERCAST CIRRUS AND
CIRROCUMULUS CLOUDS EXTEND FARTHER EAST...AND ARE GREATEST IN
COVERAGE NORTH OF 23N.

ACROSS THE MAIN HAWAIIAN ISLANDS...BROKEN LOW CLOUDS COVER INTERIOR
AND NORTHWEST SECTIONS OF KAUAI AND OAHU. SCATTERED TO BROKEN LOW
CLOUDS ARE LOCATED OVER NORTHWEST SECTIONS OF MOLOKAI AND LANAI.
BROKEN TO OVERCAST LOW AND MID LEVEL CLOUDS COVER MUCH OF MAUI AND
KAHOOLAWE AND ADJACENT COASTAL WATERS. ONLY THE EASTERN SLOPES OF
HALEAKALA FROM NAHIKU TO HANA ARE MOSTLY CLEAR...AS ARE THE FAR
NORTHWESTERN SECTIONS OF THE WEST MAUI MOUNTAINS.

ON THE BIG ISLAND...PATCHES OF BROKEN LOW CLOUDS COVER NORTH AND
SOUTH KOHALA DISTRICTS...NORTH KONA DISTRICT NORTH OF KAILUA-KONA...
AND HAMAKUA DISTRICT WEST OF HONOKAA. BROKEN TO OVERCAST LOW AND MID
LEVEL CLOUDS COVER MUCH OF NORTH AND SOUTH HILO DISTRICTS BELOW 6000
FT...AND EXTEND OVER 70 MILES OFFSHORE TO THE NORTHEAST. BROKEN LOW
CLOUDS COVER PORTIONS OF PUNA DISTRICT BELOW 2000 FT. THESE CLOUDS
ALSO EXTEND OVER 60 MILES OFFSHORE TO THE EAST AND SOUTHEAST. THE
SUMMITS OF MAUNA KEA AND MAUNA LOA ARE MOSTLY CLEAR...ALTHOUGH SNOW
IS VISIBLE ON BOTH SUMMITS EXTENDING DOWN TO ABOUT 12000 FT.

ACROSS THE MAIN HAWAIIAN ISLANDS...LOW CLOUDS MOTIONS ARE TO THE
SOUTHEAST AND EAST AT 10 TO 15 MPH. WEST OF 160W...CLOUD MOTIONS ARE
TO THE SOUTH AND SOUTHWEST AT 15 TO 20 MPH. LOW CLOUDS ARE ALSO
GREATER IN COVERAGE WEST OF 160W. CLOUDS TRANSITION FROM SHOWERY
OPEN CELL CUMULUS ELEMENTS NEAR 160W TO MORE STABLE CLOSED CELL
CUMULUS ELEMENTS FARTHER WEST.

$$

BRAVENDER




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