Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 011225
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC SAT AUG 01 2015

BASED ON DATA THROUGH 1200 UTC AUGUST 01 2015

AS OF 200 AM HST...WATER VAPOR SATELLITE IMAGERY SHOWED AN UPPER LOW
CENTERED NEAR 32N173W AND AN UPPER RIDGE ORIENTED FROM EAST TO WEST
OVER THE ISLANDS. A COMBINATION OF PLENTY OF DEEP-LAYER MOISTURE AND
INSTABILITY ASSOCIATED WITH THE UPPER LOW CONTINUED TO SUPPORT A
LARGE AREA OF LAYERED CLOUDS WITH EMBEDDED THUNDERSTORMS ABOUT 800
MILES WEST-NORTHWEST OF KAUAI BETWEEN 12N AND 30N FROM 175W TO 168W.
MAXIMUM CLOUD TOPS ASSOCIATED WITH THE THUNDERSTORMS EXTENDED TO
AROUND 45 THOUSAND FEET. SOME DEBRIS CLOUDS ASSOCIATED WITH THESE
THUNDERSTORMS WERE SPREADING EAST-NORTHEAST AROUND THE UPPER RIDGE
BETWEEN 20N AND 30N FROM 170W TO 155W...WHICH WERE MAKING IT TO
KAUAI BEFORE DIMINISHING.

ISOLATED THUNDERSTORMS ASSOCIATED WITH POST-TROPICAL CYCLONE EIGHT-E
WERE SHOWN BETWEEN 15N AND 18N FROM 152W TO 149W. CLOUD TOPS
ASSOCIATED WITH THESE STORMS EXTENDED TO AROUND 55 THOUSAND FEET.
OTHERWISE...A BROAD AREA OF BROKEN LOW CLOUDS WERE SHOWN SWIRLING
AROUND THIS REMNANT LOW FROM 13N TO 23N BETWEEN 154W AND 147W. THE
WESTERN EDGE OF THIS LOW CLOUD COVERAGE WAS NEAR THE BIG ISLAND AND
WAS MOVING WEST-SOUTHWEST AT 10 TO 15 MPH.

THUNDERSTORMS ASSOCIATED WITH A WEAK AREA OF LOW PRESSURE THAT WAS
ABOUT 760 MILES SOUTHWEST OF HONOLULU...HAWAII CONTINUED TO DEVELOP
BETWEEN 20N AND 25N FROM 160W TO 168W. CLOUD TOPS ASSOCIATED WITH
THESE STORMS EXTENDED TO AS HIGH AS 45 THOUSAND FEET. THIS ACTIVITY
WAS MOVING WEST AT 10 TO 15 MPH.

SCATTERED LOW-LEVEL CLOUDS WERE SHOWN TRACKING WESTWARD WITHIN THE
TRADE WINDS AROUND AND OVER THE MAIN HAWAIIAN ISLANDS. CLOUD TOPS
WERE BELOW 12 THOUSAND FEET. AS PREVIOUSLY MENTIONED...HIGH CLOUDS
ASSOCIATED WITH THUNDERSTORMS WEST OF KAUAI WERE SHOWN TRACKING
EASTWARD TOWARD AND OVER KAUAI BEFORE DIMINISHING WEST OF OAHU.

$$

AG




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