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Hawaiian Islands Satellite Interpetation Message
382
ATHW40 PHFO 181230
SIMHI
HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC SAT MAY 18 2013
BASED ON DATA THROUGH 1100 UTC MAY 18 2013
ANIMATION OF THE WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW
EXITING THE ISLAND OF OAHU TOWARD THE EAST AT 10 MPH. AN AREA OF
CIRRUS CLOUDS COVERED THE AREA BETWEEN 200 AND 560 MILES NORTHEAST
QUADRANT OF THIS LOW. THIN CIRRUS CLOUDS ARE ALSO NOTED APPROACHING
KAUAI FROM THE NORTHWEST...WHILE MUCH THICKER CIRRUS SHIELD IS
LOCATED BETWEEN 270 AND 550 MILES SOUTHEAST OF THE BIG ISLAND. THIS
STREAM OF CIRRUS...ABOUT 260 MILES WIDE...IS HEADING TOWARD THE
NORTHEAST...FROM ISOLATED STORMS ALONG THE INTERTROPICAL CONVERGENCE
ZONE LOCATED ALONG 05N.
ALSO ON INFRARED SATELLITE IMAGERY...IS A BAND OF LOW CLOUDS ABOUT
470 MILES NORTHWEST OF KAUAI. IT IS PART OF A WEAK BOUNDARY THAT IS
MOVING SOUTH AND SOUTHEAST AT 10 TO 15 MPH.
AS FOR THE ISLANDS...THE BROKEN AREA OF LOW CLOUDS CONTINUES
WESTWARD UNDER A WEAK TO MODERATE TRADE WIND FLOW. THE SMALLER
ISLANDS ARE MOSTLY IN THE CLEAR WITH BROKEN LOW CLOUDS PRESENT OVER
THE SURROUNDING WATERS OF OAHU MOLOKAI LANAI AND MAUI. THESE CLOUDS
CONTAIN ISOLATED SHOWERS. THE ISLAND OF HAWAII IS MOST AFFECTED WITH
BROKEN TO OVERCAST CLOUDS COVERING BOTH THE WINDWARD AND LEEWARD
ZONES. A HEAVY SHOWER POPPED UP ALONG THE LEEWARD KOHALA COAST IN
THE LAST HOUR...WHILE AN AREA OF SCATTERED SHOWERS THREATENS TO MOVE
ONTO THE KAU COAST AND THE AIRPORT AT KAILUA KONA.
THE LOW LEVEL WIND FLOW ACROSS THE MAIN ISLANDS AND SURROUNDING
WATERS...STILL SHOW A SLIGHT TINGE OF AN INVERTED NORTH TO SOUTH
ORIENTED TROUGH OVER THE WINDWARD WATERS OF MAUI.
THE ITCZ STRETCHED FROM 05N140W TO 07N167W TO 03N180E. SCATTERED
MODERATE THUNDERSTORMS ARE NOTED ALONG PART OF THIS ITCZ EAST OF
150W. DENSE...LAYERED CLOUDS WITH EMBEDDED THUNDERSTORMS EXTENDED
NORTHWARD TO 10N FOR THE REMAINING PORTION OF THE ITCZ.
$$
LAU
Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office
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This page is maintained voluntarily by the MKWC and the UHMET faculty, staff, and students.
It was last modified on: Tue, Sep 21 2010 - 2314 UTC
Send comments to: Ryan Lyman
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