Satellite Interpretation Message
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000
ATHW40 PHFO 170500
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0500 UTC THU APR 17 2014

BASED ON DATA THROUGH 0430 UTC APRIL 17 2014

SKIES ARE CLEAR TO PARTLY CLOUDY OVER MUCH OF THE ALOHA STATE THIS
EARLY EVENING...INCLUDING THE ADJACENT COASTAL WATERS.  LOW
CEILINGS...ON THE OTHER HAND...HAVE BEEN FAVORING MAUKA AND WINDWARD
UPSLOPE SECTIONS ON THE INDIVIDUAL ISLES...AT LEAST FROM TIME TO
TIME.  ON THE BIG ISLAND...BROKEN TO OVERCAST LOW CLOUDINESS HAS
ALSO BEEN AFFECTING UPSLOPE AND COASTAL AREAS OF KONA AND LEEWARD
KOHALA.  LOW CLOUD MOTION IS FROM THE EAST-NORTHEAST AT 20 TO 25 MPH
ACROSS THE ISLAND CHAIN.

IN THE UPPER AIR ABOVE 25 THOUSAND FEET...WATER VAPOR IMAGERY SHOWS
DRY CONDITIONS OVER THE ISLANDS.  ALSO...THE AXIS OF A NORTHEAST-TO-
SOUTHWEST ORIENTED TROUGH IS ROUGHLY ALONG A LINE FROM 23N154W TO
JUST OVER MAUI COUNTY TO 15N165W.  THE NORTHERN PART OF THE SYSTEM
HAS BEEN NEARLY STATIONARY...WHILE THE SOUTHERN PORTION HAS BEEN
HEADING SLOWLY WEST.  THE UPPER WINDS ON THE EAST SIDE OF THE TROUGH
ARE FROM THE SOUTH AND SOUTHWEST...AND ARE CARRYING A LARGE SWATH OF
HIGH CLOUDS TO THE NORTH AND NORTHEAST.  THE CIRRUS CLOUDS...WITH
SOME ELEMENTS SWEEPING JUST EAST OF THE BIG ISLAND...ARE DEBRIS
FROM THE CONVECTION THAT HAS BEEN OCCURRING FAR TO THE SOUTH AND
SOUTHWEST OF HAWAII.

BROKEN HIGH CLOUDS HAVE BEEN STREAMING OVER MIDWAY ATOLL FROM THE
WEST IN ADVANCE OF A FRONT THAT IS APPROACHING THE DATE LINE.  WINDS
AT THE SITE HAVE RECENTLY BEEN FROM THE SOUTH AND SOUTHWEST BETWEEN
15 AND 20 MPH AS THE FEATURE GETS CLOSER TO THE ISLE.

AS ALLUDED TO ABOVE...CONVECTION HAS BEEN FIRING ALONG THE
INTERTROPICAL CONVERGENCE ZONE FAR SOUTH OF HAWAII.  MUCH OF THE
ACTIVITY HAS BEEN IGNITING FROM 02.5N TO 06.5N EAST OF 153W.  MORE
INTENSE CELLS...THOUGH...HAVE BEEN EVIDENT SOUTH OF 04N WEST OF 162W.

$$

KINEL




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