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339
ATHW40 PHFO 290545
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT NOV 29 2014

BASED ON DATA THROUGH 0000 UTC NOVEMBER 29 2014

SINCE MID-AFTERNOON AN EAST NORTHEAST TO WEST SOUTHWEST BAND OF
OVERCAST HIGH CLOUDS HAS MOVED SOUTHEAST AND NOW OBSCURES LOWER
LEVEL FEATURES FROM LANAI TO THE BIG ISLAND OF HAWAII. BASED ON
VISIBLE IMAGERY THROUGH 500 PM LOW-CLOUD COVER HAS CHANGED LITTLE
SINCE MID-AFTERNOON. BROKEN TO OVERCAST LOW CLOUDS COVER MOST
WINDWARD AREAS OF THE MAIN HAWAIIAN ISLANDS AND BROKEN LOW CLOUDS
ARE SPREADING LEEWARD ON OAHU AND MOLOKAI. THE CLOUDS OVER CENTRAL
OAHU ARE WAVE CLOUDS...A SERIES OF NARROW CLOUD LINES PARALLEL TO
THE KOOLAU MOUNTAINS. LOW CLOUDS ARE SCATTERED OVER THE WEST THIRD
OF KAUAI...ALONG THE LEEWARD COAST OF OAHU FROM PEARL HARBOR TO
KALAELOA TO KAENA POINT...OVER THE WEST QUARTER OF MOLOKAI AND OVER
THE LEEWARD COAST OF MAUI. BROKEN LOW CLOUDS FROM AFTERNOON HEATING
COVERED THE LEEWARD SLOPES OF THE BIG ISLAND THROUGH 500 PM.

A LOT OF THE CLOUD COVER AROUND THE MAIN HAWAIIAN ISLANDS IS
ASSOCIATED WITH THE TRAILING ENDS OF TWO OLD FRONTAL BANDS. ONE BAND
IS SOUTHEAST OF A LINE FROM 24N140W TO 20.5N150W OVER THE BIG ISLAND
TO 17N169W. THE BAND IS 120 MILES WIDE AND CONTAINS SHOWERY BROKEN
TO OVERCAST LOW CLOUDS. THE SECOND BAND IS NORTHWEST OF A LINE FROM
25N140W TO 22N150W OVER THE KAUAI CHANNEL TO 20N164W TO 22N170W TO
27N174W. OVER THE PAST SEVERAL HOURS THE PARTS OF THE TWO BANDS NEAR
THE MAIN HAWAIIAN ISLANDS HAVE REMAINED NEARLY STATIONARY. NORTHEAST
OF THE ISLANDS THE TWO BAND HAVE BECOME LESS WELL DEFINED AND
DIFFICULT TO SEPARATE. IN ANY CASE...THERE ARE BROKEN TO OVERCAST
LOW CLOUDS UPSTREAM OF THE MAIN HAWAIIAN ISLANDS. THESE CLOUDS ARE A
MIX OF SHOWERY CUMULUS CLOUDS...CU...AND STABLE STRATOCUMULUS
CLOUDS...SC. THE CLOUDS UPSTREAM OF THE BIG ISLAND...PART OF THE
SOUTHERN BAND DESCRIBED ABOVE...ARE THE MOST SHOWERY LOOKING.

AN AREA OF BROKEN LAYERED CLOUD AND NUMEROUS CUMULONIMBUS
CLOUDS...CB...ASSOCIATED WITH A FRONTAL CLOUD BAND IS NORTHWEST OF A
LINE FROM 30N175W TO JUST NORTHWEST OF MIDWAY ATOLL TO 26N180W. THE
BAND HAS BEEN MOVING TOWARD THE EAST SOUTHEAST AT 30 MPH.

A STRONG JET STREAM RUNS FROM 16N170W OVER OAHU TO 23N152W TO
23N140W. THERE IS A BAND OF BROKEN HIGH CLOUDS SOUTH OF THE JET WEST
OF 148W. THE NORTHWEST EDGE OF THE HIGH-CLOUD BAND OVER THE MAIN
HAWAIIAN ISLANDS HAS BEEN MOVING TOWARD THE EAST SOUTHEAST AT 30 MPH.

$$
DONALDSON







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