Satellite Interpretation Message
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000
ATHW40 PHFO 260025
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT JUL 26 2014

BASED ON DATA THROUGH 0000 UTC JULY 26 2014

OVER THE STATE OF HAWAII...KAUAI AND OAHU HAVE SCATTERED TO BROKEN
LOW CLOUDS...ESPECIALLY OVER THE UPPER ELEVATIONS OF BOTH ISLANDS.
MOST OF THE CLOUD COVER OVER MAUI COUNTY HAS REMAINED CONCENTRATED
ALONG THE WINDWARD AND UPPER SLOPES. ADDITIONALLY...THE USUAL
AFTERNOON BROKEN TO OVERCAST LOW CLOUD DECK HAS DEVELOPED OVER THE
UPCOUNTRY REGION OF MAUI. MOST OF THE BIG ISLAND HAS ALSO BECOME
COVERED WITH ITS TYPICAL BROKEN TO OVERCAST AFTERNOON LOW CLOUD
LAYER OVER THE SLOPES. THE LOWER KAU DISTRICT SLOPES...THE LEEWARD
SLOPES OF KILAUEA VOLCANO AND THE UPPER SLOPES OF MAUNA KEA AND
MAUNA LOA ABOVE THE 6000 FT ELEVATION LEVEL WERE THE MAIN AREAS WITH
LITTLE OVERHEAD CLOUD COVER.

SCATTERED TO BROKEN LOW CLOUDS OVER THE COASTAL AND OFFSHORE WATERS
CONTINUED TO FLOW WESTWARD AT 15 TO 20 MILES PER HOUR IN THE TRADE
WINDS. CLOUDS NEAR OAHU AND KAUAI HAVE A MORE SHOWERY APPEARANCE. A
PATCH OF BROKEN TO OVERCAST LOW CLOUDS NEAR CAPE KUMUKAHI ON THE BIG
ISLAND HAD EMBEDDED ISOLATED LIGHT SHOWERS BASED ON RADAR DATA.

THE ITCZ REMAINED ACTIVE NORTH OF 10N TO THE EAST OF 160W. THE
CENTRAL PACIFIC HURRICANE CENTER WAS MONITORING A TROPICAL
DISTURBANCE CENTERED ABOUT 750 MILES SOUTHEAST OF THE BIG ISLAND FOR
SIGNS OF DEVELOPMENT. THE CENTER WAS RELOCATED BASED ON NEW
SCATTEROMETER DATA WHICH SHOWED A BETTER DEFINED CIRCULATION
SOUTHWEST OF THE PREVIOUS CENTER. THE DISTURBANCE HAD BEEN
PRODUCING WIDELY SCATTERED THUNDERSTORMS SOUTH OF 13N AND EAST OF
153W.

WATER VAPOR IMAGES SHOWED AN UPPER LEVEL TROUGH WITH AN AXIS ALONG A
LINE FROM 30N 164W THROUGH 19N 180. THE TROUGH AXIS MOVED TOWARD
THE SOUTHEAST AT ABOUT 10 MILES PER HOUR OVER THE PAST 6 HOURS. A
SUBTROPICAL JET STREAM ASSOCIATED WITH THIS TROUGH HAD
SOUTHWESTERLY WINDS OF 55 TO 75 MILES PER HOUR ALONG A LINE FROM 18N
170W TO 25N 160W. A 200 MILE WIDE BAND OF SCATTERED TO BROKEN HIGH
CLOUDS EXTENDED SOUTHEAST OF THE JET. ISOLATED TOWERING CUMULI AND
AN OCCASIONAL CUMULONIMBUS HAVE BEEN FORMING WITHIN A SMALL AREA
BENEATH THE TROUGH NORTH OF 28N BETWEEN 162W AND 168W.

$$

KODAMA




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