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000
ATHW40 PHFO 240029
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC TUE MAY 24 2016

BASED ON DATA THROUGH 0000 UTC MAY 24 2016

WEAKENING SURFACE HIGH PRESSURE NORTHEAST OF THE STATE CONTINUED
SEND SCATTERED TO BROKEN LOW CLOUD PATCHES INTO THE STATE FROM THE
EAST. THE AMOUNT OF CLOUDS HAD LESSENED AROUND THE ISLANDS SINCE THE
EARLY TO MID MORNING HOURS DUE TO EVAPORATION FROM THE HEAT OF THE
SUN. THE CLOUDS NEAR THE ISLANDS WERE MOVING WEST WITHIN THE TRADE
WIND FLOW AROUND 15 MILES AN HOUR THIS AFTERNOON. CLOUD TOPS WERE
MOSTLY BETWEEN 8000 AND 11000 FEET. FURTHER TO THE NORTHEAST...THE
LOW CLOUDS WERE A BIT MORE NUMEROUS NORTH OF 20N AND EAST OF 150W.

AT 2 PM HST...SKIES WERE SUNNY TO PARTLY CLOUDY OVER MOST AREAS OF
STATE. BUT THE WEST HALF OF THE BIG ISLAND HAD BECOME CLOUDY TO
MOSTLY CLOUDY. AND IT WAS SUNNY TO MOSTLY SUNNY OVER THE WATERS
IMMEDIATELY SURROUNDING THE ISLANDS.

A TROUGH OF LOW PRESSURE EXTENDED DOWN THROUGH 30N 172W TO 25N 178W.
THE TROUGH WAS NEARLY STATIONARY. BROKEN TO OVERCAST LAYERED CLOUDS
STRADDLED THE TROUGH. THE ASSOCIATED CLOUD BAND...ROUGHLY 175 MILES
WIDE...WAS CENTERED ALONG A LINE FROM 31N 170W TO 27N 180E. THE
CLOUD BAND ALSO CONTAINED ISOLATED THUNDERSTORMS NORTH OF 27N TO THE
EAST OF 172W.

$$





000
ATHW40 PHFO 231831
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC MON MAY 23 2016

BASED ON DATA THROUGH 1800 UTC MAY 23 2016

WEAKENING SURFACE HIGH PRESSURE NORTHEAST OF THE STATE CONTINUED
SEND SCATTERED TO BROKEN LOW CLOUD PATCHES INTO THE STATE FROM THE
EAST. THE CLOUDS NEAR THE ISLANDS WERE MOVING WEST WITHIN THE TRADE
WIND FLOW AT OR JUST OVER 15 MILES AN HOUR THIS MORNING. CLOUD TOPS
WERE MOSTLY AROUND 9000 TO 10000 FEET. FURTHER TO THE NORTHEAST...
THE LOW CLOUDS BECAME MORE DENSELY PACKED WITH BROKEN TO OVERCAST
COVERAGE NORTH OF 25N EAST OF 150W.

AT 8 AM HST...SKIES WERE SUNNY TO MOSTLY SUNNY OVER THE VAST
MAJORITY OF THE STATE. ONLY A FEW PATCHES OF SCATTERED TO BROKEN LOW
CLOUDS WERE NOTED ALONG THE WINDWARD SECTIONS OF THE ISLANDS AND
ALONG THE ADJACENT MOUNTAIN SLOPES.

A TROUGH OF LOW PRESSURE EXTENDED DOWN THROUGH 30N 172W TO 25N 178W.
THE TROUGH WAS NEARLY STATIONARY. BROKEN TO OVERCAST LAYERED CLOUDS
STRADDLED THE TROUGH. THE ROUGHLY 175 MILES WIDE CLOUD BAND ALSO
CONTAINED ISOLATED THUNDERSTORMS IN THE VICINITY OF 29N 171W. STORM
TOPS WERE AROUND 38000 TO 40000 FEET IN THAT AREA.

$$





000
ATHW40 PHFO 231229
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC MON MAY 23 2016

BASED ON DATA THROUGH 1200 UTC MAY 23 2016

AT 200 AM HST...SATELLITE IMAGERY SHOWED A BAND OF BROKEN TO
OVERCAST LAYERED CLOUDS ASSOCIATED WITH A WEAK FRONT OVER THE FAR
NORTHWEST PORTION OF THE DISCUSSION AREA BETWEEN 25N AND 30N FROM
168W TO THE DATE LINE. A FEW CLOUD TOPS WITHIN THIS BAND EXTENDED TO
30 THOUSAND FEET NEAR 30N. THIS BAND HAS REMAINED STATIONARY OVER
THE PAST 12 TO 18 HOURS WITH ONLY A SLIGHT SHIFT TOWARD THE EAST
OVER THE PAST SEVERAL HOURS.

SCATTERED TO BROKEN LOW CLOUDS WERE SHOWN OVER AND AROUND THE STATE
TRACKING TOWARD THE WEST WITHIN THE TRADE WINDS. THESE LOW CLOUDS
WERE MOVING AT SPEEDS RANGING FROM 15 TO 25 MPH. SCATTERED LOW
CLOUDS WERE PRESENT OVER KAUAI...ESPECIALLY OVER THE NORTHWEST
SECTION OF THE ISLAND. MOSTLY CLEAR SKIES WERE SHOWN OVER NIIHAU.
MOST OF THE CLOUD COVERAGE OVER OAHU WAS FOCUSED ALONG THE WINDWARD
LOCATIONS...LEAVING MOSTLY CLEAR CONDITIONS OVER THE LEEWARD PORTION
OF THE ISLAND. SIMILAR CONDITIONS WERE SHOWN OVER MOLOKAI WITH
SCATTERED TO BROKEN LOW CLOUDS FOCUSING ALONG THE NORTHEAST COAST
FROM KALAUPAPA TO HALAWA VALLEY. MOSTLY CLEAR SKIES WERE SHOWN OVER
THE REST OF MOLOKAI. MOST OF THE CLOUD COVERAGE ON MAUI WAS FOCUSED
ALONG THE NORTHEAST COAST BETWEEN HANA AND HAIKU. MOSTLY CLEAR
CONDITIONS PREVAILED ELSEWHERE. SCATTERED LOW CLOUDS WERE PRESENT
OVER THE BIG ISLAND...EXCEPT THE SUMMITS WHERE MOSTLY CLEAR SKIES
PREVAILED. CLOUD TOPS OVER THE ISLANDS WERE AT OR LESS THAN 13
THOUSAND FEET.

ELSEWHERE...FAIRLY BENIGN CONDITIONS PREVAILED ACROSS THE DISCUSSION
AREA WITH MAINLY SCATTERED CUMULUS CLOUDS TRACKING TOWARD THE WEST
WITHIN THE TRADE WINDS AT 10 TO 20 MPH. THIS COVERAGE WAS MORE
PRONOUNCED ACROSS THE NORTHEAST SECTION OF THE DISCUSSION AREA OR
SEVERAL HUNDRED MILES NORTHEAST OF HILO...WHERE A LARGE AREA OF
BROKEN LOW CLOUDS WAS SHOWN. CLOUD TOPS WERE AT OR LESS THAN 12
THOUSAND FEET IN THIS AREA.

$$

AG





000
ATHW40 PHFO 230519
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0520 UTC MON MAY 23 2016

BASED ON DATA THROUGH 0500 UTC MAY 23 2016

AT 700 PM HST...SATELLITE IMAGERY SHOWED A BAND OF BROKEN TO
OVERCAST CLOUDS ASSOCIATED WITH A WEAK TROUGH OVER THE FAR NORTHWEST
PORTION OF THE DISCUSSION AREA BETWEEN 25N AND 30N FROM 168W TO THE
DATE LINE. ALTHOUGH MOST OF THESE CLOUDS WITHIN THE BAND WERE LOW-
LEVEL CUMULUS WITH CLOUD TOPS EXTENDING TO 15 TO 20 THOUSAND
FEET...A FEW TOPS REACHED 35 TO 40 THOUSAND FEET NEAR 30N. THIS BAND
HAS REMAINED NEARLY STATIONARY OVER THE PAST 12 TO 18 HOURS WITH
ONLY A SLIGHT SHIFT TOWARD THE EAST OVER THE PAST SEVERAL HOURS.

SCATTERED TO BROKEN LOW CLOUDS WERE SHOWN OVER AND AROUND THE STATE
TRACKING TOWARD THE WEST WITHIN THE TRADE WINDS. THESE LOW CLOUDS
WERE MOVING AT SPEEDS RANGING FROM 15 TO 25 MPH. SCATTERED TO BROKEN
LOW CLOUDS WERE PRESENT OVER KAUAI AND NIIHAU WITH ONLY A FEW CLEAR
PATCHES DEPICTED OVER THE SOUTHWEST AND EAST COASTS OF KAUAI. MOST
OF THE CLOUD COVERAGE OVER OAHU WAS FOCUSED ALONG THE WINDWARD AND
THE INTERIOR AREAS...LEAVING MOSTLY CLEAR CONDITIONS OVER THE
LEEWARD PORTION OF THE ISLAND. SIMILAR CONDITIONS WERE SHOWN OVER
MOLOKAI WITH SCATTERED TO BROKEN LOW CLOUDS FOCUSING ALONG THE
NORTHEAST COAST FROM KALAUPAPA TO HALAWA VALLEY. MOSTLY CLEAR SKIES
WERE SHOWN OVER THE REST OF MOLOKAI. SCATTERED LOW CLOUDS WERE
COVERING MUCH OF MAUI WITH ONLY A FEW CLEAR SPOTS OVER THE SOUTHEAST
AND NORTHERN SLOPES OF HALEAKALA BETWEEN HAIKU AND MAKAWAO. BROKEN
TO OVERCAST LOW CLOUDS WERE LOCATED OVER THE LEEWARD SIDE OF THE BIG
ISLAND...MAINLY FROM KONA TO SOUTH POINT. SCATTERED LOW CLOUDS WERE
SHOWN OVER THE WINDWARD SIDE. MOSTLY CLEAR CONDITIONS PREVAILED OVER
THE SUMMITS AND COASTAL PUNA DISTRICT...AS WELL AS PORTIONS OF THE
HAMAKUA COAST. CLOUD TOPS OVER THE ISLANDS WERE AT OR LESS THAN 15
THOUSAND FEET.

ELSEWHERE...FAIRLY BENIGN CONDITIONS PREVAILED ACROSS THE DISCUSSION
AREA WITH MAINLY SCATTERED CUMULUS CLOUDS TRACKING TOWARD THE WEST
WITHIN THE TRADE WINDS AT 10 TO 20 MPH. THIS COVERAGE WAS MORE
PRONOUNCED ACROSS THE NORTHEAST SECTION OF THE DISCUSSION AREA OR
SEVERAL HUNDRED MILES NORTHEAST OF HILO...WHERE A LARGE AREA OF
BROKEN LOW CLOUDS WAS SHOWN. CLOUD TOPS WERE AT OR LESS THAN 12
THOUSAND FEET IN THIS AREA.

$$

AG





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