Satellite Interpretation Message
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000
ATHW40 PHFO 291806
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC SUN MAY 29 2016

BASED ON DATA THROUGH 1800 UTC MAY 29 2016

A BROAD UPPER LEVEL TROUGH IS SLOWING MOVING TO THE EAST ACROSS
THE AREA...WITH THE TROUGH AXIS RUNNING FROM 50N 153W TO 30N 152W
AND THROUGH 18N 177W. AMPLE MOISTURE ALONG THE EASTERN SIDE OF
THE TROUGH...NORTH OF 30N...IS HELPING TO SUPPORT A THICK BAND OF
LAYERED CLOUDS ASSOCIATED WITH A SURFACE FRONT. THE LEADING EDGE
OF THE FRONT RUNS FROM 44N 147W TO 35N 144W TO 27N 150W TO 23N
160W. THE LAYERED CLOUDS EXTENDED APPROXIMATELY 200 MILES WEST OF
THE LEADING EDGE...WITH TOPS REACHING BETWEEN 35 AND 40 THOUSAND
FEET. THE FRONTAL BAND BEGINS TO TAPER OFF SOUTH OF 30N...AND
BETWEEN 30N AND 27N THE LAYERED CLOUDS EXTEND APPROXIMATELY 120
MILES TO THE WEST...WITH CLOUD TOPS UP TO 25 THOUSAND FEET. THE
FRONTAL BAND THINS FURTHER...AND IS AROUND 70 MILES WIDE NEAR
25N WITH TOWERING CUMULUS /TCU/ BETWEEN 15 AND 18 THOUSAND FEET.
EVENTUALLY...THE BAND BECOMES A THIN LINE OF CUMULUS /CU/ 85 MILES
NORTH OF KAUAI.

EAST OF THE FRONT...LOW LEVEL SATELLITE DERIVED WINDS REVEAL A
SURFACE HIGH CENTERED NEAR 41N 135W WITH ASSOCIATED RIDGING
EXTENDING SOUTH SOUTHWEST TO 23N 152W. OVERCAST STRATOCUMULUS /SC/
SIT BENEATH THE HIGH...SOUTH TO 15N AND WEST TO 140W. WEST OF
140W LOW LEVEL CLOUDS BECOME SCATTERED. NORTH OF 20N...SCATTERED
SC AND CU ARE GENERALLY MOVING TO THE NORTHWEST AND NORTH BETWEEN
10 AND 20 MPH. SOUTH OF 20N...MOST SCATTERED SC AND CU ARE MOVING
THE WEST BETWEEN 10 AND 20 MPH. WEST OF THE FRONT...FEW TO
SCATTERED SC AND CU ARE GENERALLY MOVING TO THE WEST BETWEEN 10
AND 20 MPH.

ISOLATED CONVECTION JUST SOUTH OF 10N...ASSOCIATED WITH A BROKEN
INTER-TROPICAL CONVERGENCE ZONE /ITCZ/...IS PRODUCING SCATTERED
CIRRUS /CI/ BLOW OFF. THE CI IS BEING DRAWN NORTH AND EAST ALONG
A JET SOUTH OF THE UPPER TROUGH MENTIONED ABOVE.

QUIET SKIES ARE OVER MOST OF THE MAIN HAWAIIAN ISLAND THIS
MORNING. FEW CLOUDS LINGER OVER KAUAI OAHU MOLOKAI LANAI AND
MAUI...MAINLY ON THE NORTH AND EAST SLOPES. THE NORTHERN HALF OF
THE BIG ISLAND REMAINS RELATIVELY CLEAR...FROM NORTH KONA TO
KOHALA AND AROUND TO HILO. A NEARLY STATIONARY PATCH OF BROKEN TO
OVERCAST LOW LEVEL CLOUDS SITS OVER 158W TO 154W AND BETWEEN 18.4N
AND 19.4N...COVERING THE SOUTHERN PORTION OF THE BIG ISLAND FROM
SOUTH KONA TO SOUTH POINT AND THE KAU AND PUNA DISTRICTS. THE
SUMMITS ARE CLEAR.

$$

EATON



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