Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 280530
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC MON JUL 28 2014

BASED ON DATA THROUGH 0500 UTC JULY 28 2014

SATELLITE LOOP SHOWS LOW CLOUDS ARE MOVING GENERALLY FROM EAST TO
WEST SOUTH OF 30N AND EAST OF 172W...INCLUDING ACROSS LOCAL HAWAIIAN
WATERS. A BROAD ANTICYCLONIC CIRCULATION...ACTUALLY A SUBTROPICAL
HIGH..IS CENTERED NEAR 38N137W AND IS THE MAIN DRIVER FOR THIS FLOW.
WATER VAPOR LOOP...SHOWING FEATURES MAINLY ABOVE 24000 FEET...SHOWS
AN UPPER LOW NEAR 30N160W. THIN AND GAPPY HIGH CLOUDS MARK THIS
UPPER LOW ALONG ITS EASTERN AND SOUTHWESTERN FLANKS. THIS UPPER LOW
APPEARS TO BE MOVING SOUTH AT ABOUT 15 MPH.

OVERCAST LAYERED CLOUDS WEST OF A LINE FROM 50N180W TO 44N173W TO
32N175W TO 28N180W MARK A FRONTAL BOUNDARY JUST ENTERING THE CENTRAL
NORTH PACIFIC FROM THE WEST. MOVEMENT IS TOWARD THE EAST AT 10 MPH.

ISOLATED CUMULONIMBUS...CB...ARE EMBEDDED WITHIN OVERCAST LAYERED
CLOUDS NORTH OF 06N AND SOUTH OF A LINE FROM 08N175W TO 15N155W TO
12N140W. A PAIR OF WEAK SURFACE LOWS LIE WITHIN THIS AREA...ONE
NEAR 10N160W AND ANOTHER NEAR 13N144W. THIS LAST LOW IS ALL THAT IS
LEFT OF FORMER TROPICAL DEPRESSION GENEVIEVE. BOTH LOWS ARE MOVING
SLOWLY GENERALLY TOWARD THE WEST.

LOW CLOUDS FAVOR WINDWARD AREAS OF THE SMALLER ISLANDS...WITH BROKEN
LOW CLOUDS ACROSS THE EASTERN HALF OF KAUAI AND ACROSS WINDWARD
SHORES AND SLOPES OF THE KOOLAU RANGE ON OAHU. PATCHY BROKEN LOW
CLOUDS ALSO PERSISTS ACROSS THE WAIANAE SUMMITS ON OAHU. BROKEN LOW
CLOUDS LIE ACROSS THE EASTERN TIP OF MOLOKAI...MAUKA SECTIONS OF
LANAI AND WINDWARD HALEAKALA SLOPES ON MAUI. THE WEST MAUI MOUNTAINS
HAVE PATCHY BROKEN LOW CLOUDS. BROKEN TO OVERCAST LOW CLOUDS LIE
ACROSS ALL WINDWARD BIG ISLAND SLOPES AS WELL AS KAU SLOPES AND KONA
SLOPES SOUTH OF KAILUA-KONA. TOWERING CUMULUS IS NOTED HIGH IN THE
LEEWARD HALF OF THE BIG ISLAND SADDLE. SATELLITE LOOP SHOWS LOW
CLOUDS ARE MOVING ACROSS LOCAL WATERS TOWARD THE WEST AT 15 TO 20
MPH...STRONGEST NEAR THE BIG ISLAND AND WEAKEST NEAR KAUAI.

$$

POWELL






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