ATHW40 PHFO 081831

SIMHI 



HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE

NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI

1830 UTC SUN SEP 08 2013



BASED ON DATA THROUGH 1800 UTC SEPTEMBER 08 2013



AS OF 8 AM HST...THE TRAILING SIDE OF A 130 MILE WIDE BAND OF  

SCATTERED TO BROKEN SHOWERY CUMULUS WAS JUST ABOUT TO CLEAR THE BIG 

ISLAND AS IT HEADED WEST. THIS BAND OF ENHANCED CLOUDINESS WAS 

CENTERED ON A LINE FROM 280 MILES WEST-NORTHWEST OF NIIHAU TO 450 

MILES SOUTH-SOUTHEAST OF SOUTH POINT ON THE BIG ISLAND. 

MIMIC...MODIS...AND BLENDED TOTAL PRECIPITABLE WATER IMAGERY SHOWED 

THIS BAND WAS ASSOCIATED WITH AN AREA OF ENHANCED MOISTURE RIDING ON 

TRADE WINDS. THERE WERE STILL SOME LINGERING CLUSTERS OF SHOWERY 

CUMULUS ASSOCIATED WITH THIS BAND BRUSHING THE KAU AND PUNA 

DISTRICTS...AND SOUTH POINT ON THE BIG ISLAND. 



OVER AND UPSTREAM FROM THE ISLANDS FOR SEVERAL HUNDRED MILES...

MAINLY JUST FAIR WEATHER CUMULUS CLOUDS WERE NOTED. LOW CLOUD MOTION 

WAS TOWARD JUST NORTH OF DUE WEST AT ABOUT 20 MILES AN HOUR. ON 

LAND...MOST OF THE LOW CLOUDS WERE BANKED AGAINST WINDWARD FACING 

SLOPES...WITH MOSTLY CLEAR SKIES OVER ISLAND INTERIORS AND LEEWARD 

SECTIONS. 



A WEAK TROUGH IN THE INTERTROPICAL CONVERGENCE ZONE IS PRODUCING 

SCATTERED CUMULONIMBUS WITHIN 75 MILES OF A LINE FROM 9N 170W TO 14N 

164W. THIS IS ABOUT 600 MILES SOUTHWEST OF NIIHAU AND 350 MILES 

SOUTHEAST OF JOHNSTON ISLAND. HIGHEST CLOUD TOPS IN THIS AREA WERE 

ESTIMATED TO BE NEAR 49000 FEET. THIS AREA IS MOVING WEST AT ABOUT 

10 MPH. 



THE NEARLY STATIONARY REMNANTS OF AN OLD COLD FRONT WERE LOCATED 

ABOUT 550 MILES NORTHWEST OF KAUAI. A NARROW BAND OF SHOWERY 

CUMULUS...ALONG WITH SOME VERY ISOLATED CUMULONIMBUS WITH TOPS TO 

39000 FEET...WERE ALONG A LINE THROUGH 30N163W 26N175W. 



$$



R BALLARD