Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 301219
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC MON MAY 30 2016

BASED ON DATA THROUGH 1200 UTC MAY 30 2016

AT 200 AM HST...SATELLITE IMAGERY SHOWED A LARGE AREA OF BROKEN TO
OVERCAST LAYERED CLOUDS NORTH AND NORTHEAST OF THE HAWAIIAN ISLANDS
TRACKING TOWARD THE EAST. THESE CLOUDS WERE ASSOCIATED WITH A BROAD
UPPER TROUGH AND SURFACE FRONTAL BOUNDARY. A NARROW CLOUD BAND WAS
SHOWN ALONG AND AHEAD OF THIS FRONTAL BOUNDARY EXTENDING SOUTHWEST
FROM THIS AREA TO THE KAUAI CHANNEL...WHICH WAS MADE UP OF MOSTLY
LOW CLOUDS WITH TOPS EXTENDING TO AROUND 15 THOUSAND FEET OR LESS.
THIS CLOUD BAND WAS TRACKING TOWARD THE SOUTH-SOUTHEAST AT 5 TO 10
MPH. SOME HIGH CLOUDS WERE SHOWN QUICKLY TRACKING TOWARD THE SOUTH
FROM THIS AREA WITHIN THE NORTHERLY FLOW ON THE BACK-SIDE OF THIS
UPPER TROUGH...WHICH WERE DISSIPATING NORTH OF THE ISLANDS.

BROKEN TO OVERCAST LOW CLOUDS ASSOCIATED WITH THE PREVIOUSLY
DISCUSSED CLOUD BAND AND FRONTAL BOUNDARY WERE LOCATED OVER KAUAI
AND THE KAUAI CHANNEL. THE BACK EDGE OF THIS BAND WAS BEGINNING TO
CLEAR THE NORTHWEST COASTAL AREAS OF KAUAI. MOSTLY CLEAR SKIES WERE
SHOWN OVER NIIHAU. ALTHOUGH THIS CLOUD BAND WAS NEARING THE NORTH
SHORE OF OAHU...ISOLATED TO SCATTERED LOW CLOUDS WERE SHOWN OVER
OAHU. MUCH OF THE LOW CLOUDS ON MOLOKAI WERE FOCUSING OVER THE
NORTHEAST SECTION OF THE ISLAND. ISOLATED TO SCATTERED LOW CLOUDS
WERE SHOWN OVER THE WINDWARD LOCATIONS OF MAUI...LEAVING MOSTLY
CLEAR SKIES OVER THE REST OF THE ISLAND. A LARGE BATCH OF LOW CLOUDS
WERE SHOWN OVER THE SOUTHWEST COAST OF THE BIG ISLAND...WHICH
EXTENDED SOUTHWEST ACROSS THE ADJACENT NEARSHORE WATERS OUT TO
AROUND 20 MILES. ELSEWHERE...MOSTLY CLEAR SKIES PREVAILED OVER THE
BIG ISLAND.

HIGH CLOUDS OR DEBRIS CLOUDS WERE SHOWN TRACKING TOWARD THE NORTH
AND NORTHEAST BETWEEN THE BIG ISLAND AND 10N. THESE CLOUDS WERE FROM
THUNDERSTORMS THAT HAD DEVELOPED BETWEEN 5N AND 10N WITHIN THE
INTERTROPICAL CONVERGENCE ZONE. ANOTHER SMALL BAND OF SCATTERED HIGH
CLOUDS WAS LOCATED SEVERAL HUNDRED MILES SOUTHWEST OF HONOLULU
BETWEEN 10N AND 15N STREAMING NORTHEAST FROM THE DATE LINE AROUND
10N.

$$

GIBBS


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