Satellite Interpretation Message
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000
ATHW40 PHFO 230033
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC WED JUL 23 2014

BASED ON DATA THROUGH 0000 UTC JULY 23 2014

WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL TROUGH IS CENTERED A FEW
HUNDRED MILES TO THE NORTHWEST OF KAUAI. THE TROUGH HAS BEEN MOVING
SLOWLY NORTHWARD OVER THE PAST SEVERAL HOURS. INSTABILITY ASSOCIATED
WITH THE TROUGH IS CAUSING SOME THUNDERSTORMS TO FORM NEAR ITS
CENTER AND ALONG ITS EASTERN PERIPHERY JUST TO THE NORTH NORTHWEST
OF THE STATE. SOME THIN HIGH CLOUDS ARE ALSO STREAMING UP FROM THE
SOUTH ALONG THE TROUGHS EASTERN PERIPHERY MAINLY MOVING OVER MAUI
COUNTY AND THE BIG ISLAND INCLUDING THE ADJACENT COASTAL WATERS.

CLOUD COVERAGE OVER THE ISLANDS VARIED FROM ISLAND TO ISLAND BUT HAS
INCREASED QUITE A BIT SINCE EARLY THIS MORNING. INSTABILITY
ASSOCIATED WITH THE ABOVE MENTIONED TROUGH COMBINED WITH DAYTIME
HEATING HAS CAUSED SOME ISOLATED TOWERING CUMULUS AND CUMULONIMBUS
CLOUDS TO FORM ESPECIALLY OVER THE LEEWARD BIG ISLAND SLOPES. CLOUD
TOPS ARE ESTIMATED TO BE UP TO AROUND 35000 FEET. OVER KAUAI CLOUDS
ARE COVERING MOST EASTERN AND INTERIOR AREAS WITH SCATTERED LOW
CLOUDS SEEN ELSEWHERE. OVER OAHU LOW CLOUDS ARE BANKED UP OVER THE
SLOPES AND SUMMITS OF BOTH THE KOOLAU AND WAIANAE MOUNTAIN RANGES
WITH SCATTERED LOW CLOUDS SEEN ELSEWHERE. OVER MOLOKAI LOW CLOUDS
ARE COVERING EAST SECTIONS WITH A FEW PATCHES OF LOW CLOUDS ALSO
SEEN OVER INTERIOR LANAI. OVER MAUI PATCHES OF LOW CLOUDS ARE
COVERING THE SLOPES OF HALEAKALA AS WELL AS THE SLOPES AND SUMMITS
OF THE WEST MAUI MOUNTAINS. OVER THE BIG ISLAND CLOUDS HAVE BUILT UP
OVER MOST OF THE AREA WITH A FEW BREAKS SEEN OVER THE LEEWARD KOHALA
SLOPES AND OVER THE HIGH SUMMITS.

THE ITCZ IS RATHER INACTIVE AT THE PRESENT WITH SOME ISOLATED
THUNDERSTORMS ALONG ITS AXIS WHICH IS GENERALLY RUNNING ALONG 10N.
INDIVIDUAL THUNDERSTORMS ARE MOVING ALONG TOWARD THE WEST AT AROUND
15 MPH.

$$

BURKE





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