Satellite Interpretation Message
Issued by NWS

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000
ATHW40 PHFO 220520
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC SAT NOV 22 2014

BASED ON DATA THROUGH 0500 UTC NOVEMBER 22 2014

THE MAIN HAWAIIAN ISLANDS LIE UNDER A TRADE WIND FLOW SOUTH OF A
SURFACE RIDGE RUNNING ALONG 28N...WITH AN UPPER LEVEL TROUGH
STRETCHING OVER THE ISLANDS. SOUTHWEST FLOW ALOFT ALONG THE SOUTHERN
FLANK OF THE UPPER LEVEL TROUGH IS TAPPING ELEVATED MOISTURE FROM
THE ITCZ AND IS TRANSPORTING A LARGE SHIELD OF BROKEN HIGH CLOUDS
OVER THE BIG ISLAND AND WATERS TO THE SOUTH. THUNDERSTORM ACTIVITY
WITHIN THE ITCZ IS LIMITED TO THE AREA SOUTH OF 09N.

THE LAST VISIBLE IMAGES OF THE DAY NEAR THE ISLANDS SHOWED MAINLY
STABLE...SCATTERED TO LOCALLY BROKEN STRATOCUMULUS CLOUDS MOVING
FROM THE EAST AT NEARLY 25 MPH IN THE TRADE WIND FLOW. THESE STABLE
CLOUDS ARE LARGELY CONFINED TO WINDWARD SLOPES...EXCEPT ON OAHU
WHERE THESE CLOUDS HAVE SPILLED OVER THE LEEWARD AREAS. NORTH OF THE
HIGH CLOUD SHIELD...THE LOW CLOUD FIELD APPEARANCE IS RATHER STABLE.
THE UPPER LEVEL TROUGH HAD TRIGGERED SOME DEEP CONVECTION JUST SOUTH
OF THE BIG ISLAND THIS MORNING IN AN AREA OF ENHANCED MOISTURE. THIS
MOISTURE APPEARS TO BE SKIRTING SOUTH OF THE STATE AT THIS TIME...
AND THERE HAS BEEN NO DEEP CONVECTION IN NEARLY 12 HOURS.

A FRONT IS STALLED OVER THE NORTHWEST HAWAIIAN ISLANDS FROM
LISIANSKI TO KURE ATOLL. THE LEADING EDGE OF THIS FEATURE RUNS ALONG
30N164W TO 24N180 AND HAS BEEN NEARLY STATIONARY TODAY. THE FRONT IS
COMPRISED OF MAINLY BROKEN TO OVERCAST LOW CLOUDS THOUGH BROKEN HIGH
CLOUDS ARE STREAMING TOWARD THE EAST-NORTHEAST OVER AND NORTH OF
MIDWAY ATOLL.

$$

DWROE





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