Satellite Interpretation Message
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000
ATHW40 PHFO 290528
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 0500 UTC AUGUST 29 2014

THE MOST NOTICEABLE LOW LEVEL WEATHER FEATURE IN THE CENTRAL
NORTH PACIFIC IS A BROAD ANTICYCLONIC CIRCULATION. THIS
CIRCULATION...ACTUALLY A SUBTROPICAL RIDGE...HAS AN AXIS EXTENDING
EAST TO WEST ALONG ABOUT 40N. SOUTH OF THE RIDGE AXIS...SATELLITE
LOOP SHOWS LOW LEVEL FLOW IS GENERALLY FROM EAST NORTHEAST TO WEST
SOUTHWEST...INCLUDING ACROSS LOCAL HAWAIIAN WATERS. LOW LEVEL FLOW
NORTH OF THE RIDGE AXIS IS GENERALLY FROM WEST TO EAST.

A SHARP UPPER TROUGH...WITH AN AXIS EXTENDING THROUGH
36N140W...30N160W AND 27N180W...HAS TRIGGERED ISOLATED CUMULONIMBUS
WEST OF 168W BETWEEN 28N AND 32N AND PATCHES OF BROKEN LAYERED
CLOUDS WEST OF 172W BETWEEN 32N AND 38N. THIS UPPER TROUGH HAS NOT
MOVED MUCH OVER THE PAST 24 HOURS.

SATELLITE LOOP SHOWS A PAIR OF LOWS EMBEDDED WITHIN EASTERLY FLOW TO
THE SOUTH OF THE LOW LEVEL RIDGE AXIS. ONE OF THESE...NEAR
31N146W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 22N150W.

SCATTERED TO PATCHY BROKEN LOW CLOUDS ARE EMBEDDED WITHIN NORTHEAST
TRADE FLOW UPWIND FROM THE MAIN HAWAIIAN ISLANDS...AFFECTING
WINDWARD AREAS. THE NORTHEAST THIRDS OF KAUAI AND OAHU HAVE PATCHY
BROKEN LOW CLOUDS. THE EASTERN THIRD OF MOLOKAI AND WINDWARD
HALEAKALA SLOPES ON MAUI HAVE PATCHY BROKEN LOW CLOUDS. LANAI
APPEARS TO BE MOSTLY CLEAR. OVERCAST LOW CLOUDS PERSIST ACROSS KAU
AND KONA SLOPES OF THE BIG ISLAND...BUT THESE APPEAR TO BE SLOUGHING
OFF ACROSS ADJACENT LEEWARD WATERS. WINDWARD BIG ISLAND SLOPES HAVE
PATCHY BROKEN LOW CLOUDS...WHILE SOUTHEAST PUNA LEEWARD KOHALA
APPEAR TO HAVE SCATTERED LOW CLOUDS TO CLEAR SKIES. SATELLITE LOOP
SHOWS LOW CLOUDS ARE MOVING ACROSS LOCAL WATERS TOWARD THE WEST
SOUTHWEST AT 10 TO 15 MPH.

$$

POWELL






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