000 
ATHW40 PHFO 110015
SIMHI 

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC WED AUG 11 2004

BASED ON DATA THROUGH 0000 UTC AUGUST 11 2004

A POORLY DEFINED BAND OF SCATTERED TO BROKEN LOW CLOUDS AFFECTED THE 
MAIN HAWAIIAN ISLANDS FROM KAUAI TO MAUI THIS AFTERNOON. THE BAND 
WAS CARRIED WITHIN A MODERATE TRADE WIND FLOW AND CREATED BROKEN LOW 
CLOUDS OVER MOST WINDWARD AND MAUKA PORTIONS OF THESE ISLANDS. 
INDIVIDUAL LOW CLOUDS OVER UPSTREAM WATERS MOVED FROM THE EAST NEAR 
25 MPH.

THE BAND OF SCATTERED TO BROKEN LOW CLOUDS EXTENDED 50 TO 75 MILES 
OFF THE WINDWARD COASTS OF KAUAI THROUGH MAUI. INTERIOR KAUAI WAS 
COVERED WITH BROKEN LOW CLOUDS...AND SCATTERED TO BROKEN LOW CLOUDS 
PASSED OVER THE REMAINDER OF THE ISLAND. SIMILARLY...ON OAHU THE 
WINDWARD COAST...THE KOOLAU RANGE...AND THE WAIANAE RANGE 
EXPERIENCED EXTENSIVE BROKEN LOW CLOUD COVER...WHILE SCATTERED TO 
BROKEN LOW CLOUDS BLEW OVER MOST LEEWARD AREAS ON OCCASION. BROKEN 
LOW CLOUDS COVERED MUCH OF NORTHEAST MOLOKAI...AS WELL AS INTERIOR 
LANAI. THESE CONDITIONS WERE OBSERVED OVER MUCH OF THE WEST MAUI 
MOUNTAINS AND OVER WINDWARD MAUI FROM JUST EAST OF HAIKU TO KAUPO. 
BROKEN LOW CLOUDS ALSO FORMED ALONG THE HEATED UPPER SLOPES OF 
HALEAKALA DURING THE AFTERNOON. EAST OF MAUI...THE 90 MILE WIDE 
CLOUD BAND TURNED AND EXTENDED ANOTHER 400 MILES TO THE EAST 
NORTHEAST.

SOUTH OF THE CLOUD BAND...AND COINCIDENTALLY UPSTREAM OF THE BIG 
ISLAND...WAS A NARROW AREA CONTAINING FEW CLOUDS. OVER WINDWARD BIG 
ISLAND...AN AREA OF BROKEN LOW CLOUDS PERSISTED FROM JUST INLAND OF 
PEPEEKEO TO THE VOLCANOES NATIONAL PARK...WITH A PATCH OF BROKEN LOW 
CLOUDS IN WAIPIO AND WAIMANU VALLEYS. BROKEN TO OVERCAST LOW CLOUDS 
FORMED THIS AFTERNOON ALONG LEEWARD AREAS FROM JUST SOUTH OF KAMUELA 
TO SOUTH POINT...AND CONTINUING ALONG WINDWARD AREAS OF THE KAU 
DISTRICT.

SCATTERED CIRRUS PASSED OVER KAUAI THIS AFTERNOON. THIS ISLAND WAS 
LOCATED ALONG THE EASTERN PERIPHERY OF A NEARLY NORTH TO SOUTH 
ORIENTED BAND OF SCATTERED TO BROKEN HIGH CLOUDS. THE CIRRUS WAS 
GENERATED BY A WEAK JET STREAM MOVING FROM THE SOUTH SOUTHWEST 
ALONG THE EASTERN FLANK OF AN UPPER LOW. THE UPPER LOW WAS CENTERED 
FAR NORTHWEST OF KAUAI NEAR 27.5N 169.0W AND HAS BEEN MEANDERING IN 
THAT REGION FOR WEEKS. THE UPPER LOW HAD LITTLE IMPACT ON WEATHER 
OVER THE ISLANDS...ALTHOUGH IT CONTINUED TO TRIGGER ISOLATED 
THUNDERSTORMS REACHING 42000 FT NEAR THE CENTER. THESE THUNDERSTORMS 
WERE FOUND WITHIN 75 MILES OF A LINE THROUGH 26N 166W...25N 167W... 
25N 170W.

TO THE SOUTH OF THE STATE...THE ITCZ WAS MOST ACTIVE SOUTH OF 10N. 
ISOLATED THUNDERSTORMS SURGED NORTH OF 10N IN A FEW AREAS...MAINLY 
SOUTH OF 13N WEST OF 170W...AS WELL AS SOUTH OF 12N EAST OF 151W.

$$

WROE