Satellite Interpretation Message
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000
ATHW40 PHFO 290527
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC SAT AUG 29 2015

BASED ON DATA THROUGH 0500 UTC AUGUST 29 2015

HURRICANE IGNACIO WAS ABOUT 720 MILES EAST-SOUTHEAST OF HILO. IT WAS
MOVING NORTHWEST TOWARD THE HAWAIIAN ISLANDS NEAR 8 MILES AN HOUR.
LAYERED CLOUDS WITH EMBEDDED CUMULONIMBUS CLOUDS WERE IN THE AREA
FROM 11N TO 19N BETWEEN 142W AND 148W. THE HIGHEST TOPS OF THESE
THUNDERSTORMS WERE ESTIMATED TO BE ABOUT 54 THOUSAND FEET. A CIRRUS
SHIELD EXTENDS OUT 500 MILES FROM THE CENTER.

TROPICAL STORM KILO WAS ABOUT 980 MILES WEST SOUTHWEST OF HONOLULU.
IT WAS MOVING WEST NEAR 9 MILES AN HOUR. LAYERED CLOUDS WITH
EMBEDDED CUMULONIMBUS CLOUDS WERE IN THE AREA FROM 15N TO 19N
BETWEEN 170W AND 175W. THE HIGHEST TOPS OF THESE THUNDERSTORMS WERE
ESTIMATED TO BE ABOUT 56 THOUSAND FEET. A CIRRUS SHIELD EXTENDS OUT
325 MILES FROM THE CENTER.

NORTH OF TROPICAL STORM KILO WAS AN UPPER LEVEL LOW CENTERED NEAR
27N 168W. LAYERED CLOUDS WITH ISOLATED EMBEDDED CUMULONIMBUS CLOUDS
WERE LOCATED IN AN AREA FROM 26N AND 30N BETWEEN 160W AND 171W. THE
HIGHEST TOPS OF THESE THUNDERSTORMS WERE ESTIMATED TO BE ABOUT 57
THOUSAND FEET. A CIRRUS SHIELD EXTENDS OUT 325 MILES FROM THE
CENTER. SOUTH AND WEST OF THIS SYSTEM WERE BROKEN TO OVERCAST CIRRUS
CLOUDS EXTENDING WEST 180E.

A SURFACE TROUGH WAS LOCATED ALONG A LINE FROM 15N 159W TO 10N 165W
WITH SCATTERED CUMULONIMBUS CLOUDS WITHIN 150 MILES OF THIS LINE.
THE THUNDERSTORMS WERE RISING TO HEIGHTS OF 48 THOUSAND FEET.

IN THE VICINITY OF THE MAIN HAWAIIAN ISLANDS...STRATOCUMULUS AND
CUMULUS CLOUDS WITH TOPS TO BETWEEN 6 AND 10 THOUSAND FEET WERE
MOVING TO THE WEST-SOUTHWEST AROUND 10 MILES PER HOUR. ALSO...THIS
SCATTERED CIRRUS WAS MOVING TO THE EAST AT 20 MILES PER HOUR. AT
0500 UTC...NIIHAU...KAUAI...LANAI AND KAHOOLAWE WERE CLOUDY. OAHU
WAS MOSTLY CLEAR OVER THE CENTRAL VALLEY INTO DOWNTOWN HONOLULU
WITH MOSTLY CLOUDY CONDITIONS ELSEWHERE. MOLOKAI AND MAUI WERE
MOSTLY CLOUDY. OVER THE BIG ISLAND IT WAS MOSTLY CLOUDY...EXCEPT
ALONG COASTAL AREA IN THE NORTH KOHALA...HILO AND PUNA DISTRICTS.


THE LOW CLOUDS NEAR THE ISLANDS WERE MOVING WEST NEAR 10 MILES AN
HOUR.  THESE LIGHT WINDS AND DAYTIME HEATING WERE ALLOWING
CONVECTIVE CLOUDS TO FORM OVER PARTS OF THE ISLANDS...IN
CONJUNCTION WITH SEA BREEZE CONVERGENCE.

$$

EVANS





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