Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 191220
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1215 UTC FRI SEP 19 2014

BASED ON DATA THROUGH 1130 UTC SEPTEMBER 19 2014

LOW CLOUD COVERAGE OF THE MAIN HAWAIIAN ISLANDS INCLUDING THE
SURROUNDING WATERS...IS PRETTY MUCH SCATTERED TO LOCALLY BROKEN THIS
EARLY FRIDAY MORNING. THE PREVAILING EASTERLY WIND FLOW OF 10 MPH...
IS CARRYING SOME OF THESE CLOUDS AND SHOWERS ONTO THE WINDWARD AND
MOUNTAIN AREAS OF THE SMALLER ISLANDS. THE TOPS OF THE SHOWERS ARE
BETWEEN 10 AND 13 THOUSAND FEET. FAIR SKIES OTHERWISE RULED THE REST
OF THESE ISLANDS.

THE WATERS OFF THE PUNA AND KAU COASTS OF THE BIG ISLAND HAVE HAD
AN INCREASE IN SHOWERS IN THE PAST COUPLE OF HOURS WHICH POSES AN
IMMEDIATE THREAT OF MOVING ONSHORE. FURTHER MORE...LAYERED CLOUDS
ASSOCIATED WITH A CLUSTER OF THUNDERSTORMS HAVE ADVANCE TO WESTWARD
TO 45 MILES OFF THE KAU COAST. ELSEWHERE OF THE BIG ISLAND...THE
AFTERNOON CLOUDS FROM YESTERDAY...HAVE PRETTY MUCH LEFT THE ISLAND
WITH FAIR SKIES IN CONTROL.

THE LAYERED CLOUDS FROM THE CLUSTER OF MODERATE TO STRONG
THUNDERSTORMS BETWEEN 190 AND 420 MILES SOUTH OF THE BIG ISLAND...
APPEARS SEPARATE FROM A DISTURBANCE OR VORTEX LOCATED AT 13N154W OR
ABOUT 430 MILES SOUTH OF SOUTH POINT WHICH CONTINUES TO MOVE WEST
SLOWLY. THIS CLUSTER OF DEEP CONVECTION HAS CLOUD TOPS OF 50000 FEET.
ANOTHER DISTURBANCE LOCATED AT 14N146W OR 735 MILES EAST SOUTHEAST
OF THE BIG ISLAND...IS MOVING WEST AT 10 MPH. THE DISTURBANCE IS
MARKED BY AN ISOLATED MODERATE THUNDERSTORM. A THIRD DISTURBANCE IS
DETECTED NEAR 07N166W OR 1050 MILES SOUTHWEST OF THE BIG ISLAND. A
MONSOONAL TROUGH LINKS ALL THREE DISTURBANCES.

LESS INTENSE CONVECTION ARE SCATTERED IN AN AREA BETWEEN 15N AND 10N
FROM 147W TO 153W. ANOTHER POOL OF SCATTERED STORMS LIES FURTHER
EAST...IN THE AREA FROM 11N TO 06N BETWEEN 137W AND 147W.

THE REMNANTS OF THE FRONTAL BOUNDARY EAST NORTHEAST OF THE BIG
ISLAND IS LESS EVIDENT FROM 7 HOURS AGO.

WATER VAPOR IMAGERY SHOWS THE SHORT WAVE TROUGH IN THE WESTERLY FLOW
ALOFT OVER MAUI THIS HOUR. THE TROUGH CONTINUES TO MOVE EAST AT 15
MPH.


$$

LAU









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