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000
FXHW60 PHFO 300654
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST FRI AUG 29 2014

.SYNOPSIS...
GENTLE TRADE WINDS WILL PREVAIL ACROSS THE ALOHA STATE THROUGH THE
LABOR DAY HOLIDAY WEEKEND. THESE LIGHTER WINDS WILL ALLOW LOCAL
SEABREEZES TO DEVELOP ACROSS MOST INTERIOR AND LEEWARD SECTIONS EACH
AFTERNOON...PRODUCING LOCALIZED CLOUD BUILDUPS AND SOME SHOWERS.
LOCAL LAND BREEZES WILL BRING CLEARING SKIES OVER THESE SAME AREAS
AT NIGHT. THE WEAK TRADE WINDS WILL CONTINUE TO CARRY SOME LOW
CLOUDS AND BRIEF SHOWERS INTO WINDWARD AND MAUKA AREAS...ESPECIALLY
NIGHTS AND MORNINGS. A MORE TYPICAL TRADE WIND WEATHER PATTERN MAY
RETURN TO THE ISLANDS BY THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
THE PRESSURE GRADIENT SOUTH OF A 1025 MB SUBTROPICAL SURFACE HIGH
NEAR 40N 161W...OR MORE THAN 1300 MILES NORTH OF HONOLULU...
CONTINUES TO MAINTAIN THE LOW-LEVEL TRADE WIND FLOW ACROSS THE ALOHA
STATE EARLY THIS EVENING. THIS HIGH IS MOVING TOWARD THE EAST AT
ABOUT 10 MPH. THE REMNANT SURFACE TROUGH ASSOCIATED WITH FORMER
NORTHEASTERN PACIFIC TROPICAL CYCLONE LOWELL...WHICH IS LOCATED
ABOUT 700 MILES NORTH OF HILO...IS MOVING WESTWARD AT ABOUT 10 MPH.
SATELLITE IMAGERY ALSO INDICATES THERE IS A SMALL LOW CLOUD SWIRL...
APPARENTLY DENOTING A WEAK LOW-LEVEL TROUGH...CENTERED ABOUT 180
MILES EAST NORTHEAST OF HILO AND MOVING SLOWLY TOWARD THE WEST
SOUTHWEST.

LOOPS OF WATER VAPOR IMAGERY SHOW AN EAST NORTHEAST TO WEST
SOUTHWEST ORIENTED UPPER TROPOSPHERIC RIDGE NEAR THE BIG ISLAND. IN
ADDITION TO THIS FEATURE...THERE IS SIGNIFICANT SUBSIDENCE HIGH
ABOVE MOST OF THE ISLANDS. THE PRESENCE OF THE RIDGING AND THE
SINKING AIR ALOFT ARE MAINTAINING STABLE ATMOSPHERIC CONDITIONS
ACROSS THE MAIN HAWAIIAN ISLANDS THIS EVENING. THE PRECIPITABLE
WATER VALUES RANGED FROM 1.02 INCHES AT LIHUE TO 1.5 INCHES AT HILO
EARLIER THIS AFTERNOON. ALSO...ABOVE NORMAL TRADE WIND INVERSIONS
AROUND 10 THOUSAND FEET CONTINUE TO BE PRESENT IN THE SOUNDINGS.

THE FORECAST MODELS INDICATE THE SUBTROPICAL HIGH WILL REMAIN RATHER
WEAK AND FAR TO THE NORTH OF THE AREA THROUGH THE LABOR DAY HOLIDAY
WEEKEND. IN ADDITION...THE SURFACE TROUGH ASSOCIATED WITH THE
REMNANTS OF LOWELL...AS WELL AS THE LOW CLOUD SWIRL EAST NORTHEAST
OF THE BIG ISLAND...WILL BE NORTH OF THE ISLANDS BY SATURDAY. THE
PRESENCE OF THIS LOWER PRESSURE TO THE NORTH OF THE STATE SHOULD
CAUSE A SLACKENING OF THE PRESSURE GRADIENT. AS A RESULT...WE EXPECT
THE TRADE WINDS SPEEDS WILL CONTINUE TO WEAKEN. AT THE SAME TIME...
THE UPPER LEVEL RIDGING IN THE VICINITY OF THE ISLANDS SHOULD
MAINTAIN A RELATIVELY STABLE ATMOSPHERIC REGIME OVER THE STATE.

THE LIGHT TO GENTLE TRADE WINDS WILL LIKELY LEAD TO A DIURNAL
CONVECTIVE PATTERN OF LOCAL AFTERNOON SEABREEZES AND NIGHTTIME
LANDBREEZES THIS WEEKEND. THIS WEATHER PATTERN TYPICALLY PRODUCES
LOCALIZED CLOUD BUILD UPS WITH ISOLATED SHOWERS ACROSS SOME INTERIOR
AND LEEWARD AREAS OF THE ISLAND CHAIN EACH AFTERNOON. AT THE SAME
TIME...THE WEAK LOW-LEVEL TRADE FLOW MAY CONTINUE TO TRANSPORT SOME
LOW CLOUDS AND BRIEF SHOWERS INTO WINDWARD FACING SLOPES AND HIGHER
TERRAIN...ESPECIALLY DURING NIGHTS AND EARLY MORNINGS. AT NIGHT...
THE LAND BREEZES SHOULD CLEAR SKIES OVER MOST OF THE REMAINDER OF
THE SMALLER ISLANDS. NOTE THAT THE ARRIVAL OF THE SMALL LOW CLOUD
SWIRL MAY PROVIDE SOME LOCAL INCREASE IN MOISTURE OVER SOME OF THE
ISLANDS SATURDAY OR SATURDAY NIGHT.

THE GENTLE TRADE WIND WEATHER PATTERN WILL LIKELY CONTINUE AT LEAST
THROUGH LABOR DAY. THE FORECAST MODELS APPEAR TO INDICATE THE TRADE
WINDS MAY RETURN TO MODERATE SPEEDS DURING THE MIDDLE AND LATER PART
OF NEXT WEEK. THIS WILL LIKELY BRING A RETURN TO A MORE TYPICAL
TRADE WIND WEATHER PATTERN ACROSS THE STATE.

&&

.AVIATION...
LIGHT TRADES WILL CONTINUE OVERNIGHT WITH SOME LOCAL LAND BREEZES.
ISOLATED SHOWERS MAY BRING ISOLATED MVFR CONDITIONS...BUT OVERALL
VFR CONDITIONS ARE EXPECTED TO PREVAIL. LIGHT TRADES SATURDAY MAY
ALLOW FOR SOME AFTERNOON SEA BREEZES...BUT AGAIN VFR CONDITIONS ARE
EXPECTED TO PREVAIL. NO AIRMETS ARE IN EFFECT.

&&

.MARINE...
ABOVE NORMAL SURF PRODUCED BY THE CURRENT SOUTH SWELL CONTINUES TO
REQUIRE A HIGH SURF ADVISORY ALONG SOUTH FACING SHORES OF THE MAIN
HAWAIIAN ISLAND CHAIN EARLY THIS EVENING. THE BARBERS POINT BUOY
CONTINUES TO SHOW A SIGNIFICANT WAVE HEIGHT OF 4 TO 5 FEET WITH A
PERIOD OF AROUND 14 SECONDS FROM AN AZIMUTH OF 190 DEGREES. GUIDANCE
FROM THE WAVE WATCH III MODEL SUGGESTS THIS ELEVATED SURF WILL
CONTINUE THROUGH SATURDAY NIGHT. AS A RESULT...THE HIGH SURF
ADVISORY REMAINS IN EFFECT THROUGH 6 AM HST SUNDAY. LOOKING
AHEAD...ANOTHER REINFORCING SOUTH SWELL IS FORECAST TO ARRIVE ON
SUNDAY...WITH YET ANOTHER VERY LONG-PERIOD SOUTH SWELL FORECAST TO
ARRIVE ON TUESDAY...AND CONTINUE FROM WEDNESDAY THROUGH THURSDAY.
SURF MAY REMAIN NEAR OR ABOVE THE HIGH SURF ADVISORY CRITERIA ALONG
SOUTH FACING SHORES THROUGH THE MIDDLE OF NEXT WEEK.

THE LIGHT TRADE WINDS WILL KEEP WINDS WELL BELOW THE SMALL CRAFT
ADVISORY CRITERIA INTO EARLY NEXT WEEK.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR SOUTH FACING SHORES OF
NIIHAU...KAUAI...OAHU...MOLOKAI...LANAI...KAHOOLAWE...MAUI  AND THE
BIG ISLAND.

&&

$$

DISCUSSION/MARINE...HOUSTON
AVIATION...MBALLARD







000
FXHW60 PHFO 300654
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST FRI AUG 29 2014

.SYNOPSIS...
GENTLE TRADE WINDS WILL PREVAIL ACROSS THE ALOHA STATE THROUGH THE
LABOR DAY HOLIDAY WEEKEND. THESE LIGHTER WINDS WILL ALLOW LOCAL
SEABREEZES TO DEVELOP ACROSS MOST INTERIOR AND LEEWARD SECTIONS EACH
AFTERNOON...PRODUCING LOCALIZED CLOUD BUILDUPS AND SOME SHOWERS.
LOCAL LAND BREEZES WILL BRING CLEARING SKIES OVER THESE SAME AREAS
AT NIGHT. THE WEAK TRADE WINDS WILL CONTINUE TO CARRY SOME LOW
CLOUDS AND BRIEF SHOWERS INTO WINDWARD AND MAUKA AREAS...ESPECIALLY
NIGHTS AND MORNINGS. A MORE TYPICAL TRADE WIND WEATHER PATTERN MAY
RETURN TO THE ISLANDS BY THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
THE PRESSURE GRADIENT SOUTH OF A 1025 MB SUBTROPICAL SURFACE HIGH
NEAR 40N 161W...OR MORE THAN 1300 MILES NORTH OF HONOLULU...
CONTINUES TO MAINTAIN THE LOW-LEVEL TRADE WIND FLOW ACROSS THE ALOHA
STATE EARLY THIS EVENING. THIS HIGH IS MOVING TOWARD THE EAST AT
ABOUT 10 MPH. THE REMNANT SURFACE TROUGH ASSOCIATED WITH FORMER
NORTHEASTERN PACIFIC TROPICAL CYCLONE LOWELL...WHICH IS LOCATED
ABOUT 700 MILES NORTH OF HILO...IS MOVING WESTWARD AT ABOUT 10 MPH.
SATELLITE IMAGERY ALSO INDICATES THERE IS A SMALL LOW CLOUD SWIRL...
APPARENTLY DENOTING A WEAK LOW-LEVEL TROUGH...CENTERED ABOUT 180
MILES EAST NORTHEAST OF HILO AND MOVING SLOWLY TOWARD THE WEST
SOUTHWEST.

LOOPS OF WATER VAPOR IMAGERY SHOW AN EAST NORTHEAST TO WEST
SOUTHWEST ORIENTED UPPER TROPOSPHERIC RIDGE NEAR THE BIG ISLAND. IN
ADDITION TO THIS FEATURE...THERE IS SIGNIFICANT SUBSIDENCE HIGH
ABOVE MOST OF THE ISLANDS. THE PRESENCE OF THE RIDGING AND THE
SINKING AIR ALOFT ARE MAINTAINING STABLE ATMOSPHERIC CONDITIONS
ACROSS THE MAIN HAWAIIAN ISLANDS THIS EVENING. THE PRECIPITABLE
WATER VALUES RANGED FROM 1.02 INCHES AT LIHUE TO 1.5 INCHES AT HILO
EARLIER THIS AFTERNOON. ALSO...ABOVE NORMAL TRADE WIND INVERSIONS
AROUND 10 THOUSAND FEET CONTINUE TO BE PRESENT IN THE SOUNDINGS.

THE FORECAST MODELS INDICATE THE SUBTROPICAL HIGH WILL REMAIN RATHER
WEAK AND FAR TO THE NORTH OF THE AREA THROUGH THE LABOR DAY HOLIDAY
WEEKEND. IN ADDITION...THE SURFACE TROUGH ASSOCIATED WITH THE
REMNANTS OF LOWELL...AS WELL AS THE LOW CLOUD SWIRL EAST NORTHEAST
OF THE BIG ISLAND...WILL BE NORTH OF THE ISLANDS BY SATURDAY. THE
PRESENCE OF THIS LOWER PRESSURE TO THE NORTH OF THE STATE SHOULD
CAUSE A SLACKENING OF THE PRESSURE GRADIENT. AS A RESULT...WE EXPECT
THE TRADE WINDS SPEEDS WILL CONTINUE TO WEAKEN. AT THE SAME TIME...
THE UPPER LEVEL RIDGING IN THE VICINITY OF THE ISLANDS SHOULD
MAINTAIN A RELATIVELY STABLE ATMOSPHERIC REGIME OVER THE STATE.

THE LIGHT TO GENTLE TRADE WINDS WILL LIKELY LEAD TO A DIURNAL
CONVECTIVE PATTERN OF LOCAL AFTERNOON SEABREEZES AND NIGHTTIME
LANDBREEZES THIS WEEKEND. THIS WEATHER PATTERN TYPICALLY PRODUCES
LOCALIZED CLOUD BUILD UPS WITH ISOLATED SHOWERS ACROSS SOME INTERIOR
AND LEEWARD AREAS OF THE ISLAND CHAIN EACH AFTERNOON. AT THE SAME
TIME...THE WEAK LOW-LEVEL TRADE FLOW MAY CONTINUE TO TRANSPORT SOME
LOW CLOUDS AND BRIEF SHOWERS INTO WINDWARD FACING SLOPES AND HIGHER
TERRAIN...ESPECIALLY DURING NIGHTS AND EARLY MORNINGS. AT NIGHT...
THE LAND BREEZES SHOULD CLEAR SKIES OVER MOST OF THE REMAINDER OF
THE SMALLER ISLANDS. NOTE THAT THE ARRIVAL OF THE SMALL LOW CLOUD
SWIRL MAY PROVIDE SOME LOCAL INCREASE IN MOISTURE OVER SOME OF THE
ISLANDS SATURDAY OR SATURDAY NIGHT.

THE GENTLE TRADE WIND WEATHER PATTERN WILL LIKELY CONTINUE AT LEAST
THROUGH LABOR DAY. THE FORECAST MODELS APPEAR TO INDICATE THE TRADE
WINDS MAY RETURN TO MODERATE SPEEDS DURING THE MIDDLE AND LATER PART
OF NEXT WEEK. THIS WILL LIKELY BRING A RETURN TO A MORE TYPICAL
TRADE WIND WEATHER PATTERN ACROSS THE STATE.

&&

.AVIATION...
LIGHT TRADES WILL CONTINUE OVERNIGHT WITH SOME LOCAL LAND BREEZES.
ISOLATED SHOWERS MAY BRING ISOLATED MVFR CONDITIONS...BUT OVERALL
VFR CONDITIONS ARE EXPECTED TO PREVAIL. LIGHT TRADES SATURDAY MAY
ALLOW FOR SOME AFTERNOON SEA BREEZES...BUT AGAIN VFR CONDITIONS ARE
EXPECTED TO PREVAIL. NO AIRMETS ARE IN EFFECT.

&&

.MARINE...
ABOVE NORMAL SURF PRODUCED BY THE CURRENT SOUTH SWELL CONTINUES TO
REQUIRE A HIGH SURF ADVISORY ALONG SOUTH FACING SHORES OF THE MAIN
HAWAIIAN ISLAND CHAIN EARLY THIS EVENING. THE BARBERS POINT BUOY
CONTINUES TO SHOW A SIGNIFICANT WAVE HEIGHT OF 4 TO 5 FEET WITH A
PERIOD OF AROUND 14 SECONDS FROM AN AZIMUTH OF 190 DEGREES. GUIDANCE
FROM THE WAVE WATCH III MODEL SUGGESTS THIS ELEVATED SURF WILL
CONTINUE THROUGH SATURDAY NIGHT. AS A RESULT...THE HIGH SURF
ADVISORY REMAINS IN EFFECT THROUGH 6 AM HST SUNDAY. LOOKING
AHEAD...ANOTHER REINFORCING SOUTH SWELL IS FORECAST TO ARRIVE ON
SUNDAY...WITH YET ANOTHER VERY LONG-PERIOD SOUTH SWELL FORECAST TO
ARRIVE ON TUESDAY...AND CONTINUE FROM WEDNESDAY THROUGH THURSDAY.
SURF MAY REMAIN NEAR OR ABOVE THE HIGH SURF ADVISORY CRITERIA ALONG
SOUTH FACING SHORES THROUGH THE MIDDLE OF NEXT WEEK.

THE LIGHT TRADE WINDS WILL KEEP WINDS WELL BELOW THE SMALL CRAFT
ADVISORY CRITERIA INTO EARLY NEXT WEEK.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR SOUTH FACING SHORES OF
NIIHAU...KAUAI...OAHU...MOLOKAI...LANAI...KAHOOLAWE...MAUI  AND THE
BIG ISLAND.

&&

$$

DISCUSSION/MARINE...HOUSTON
AVIATION...MBALLARD







  [top]

000
ATHW40 PHFO 300549
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC SAT AUG 30 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
34N140W...31N160W AND 29N180W...HAS TRIGGERED ISOLATED CUMULONIMBUS
WEST OF 171W BETWEEN 28N AND 32N AND AN AREA OF BROKEN TO OVERCAST
LAYERED CLOUDS WEST OF 172W BETWEEN 35N 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
31N152W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 21N153W...ABOUT 160 MILES NORTHEAST OF THE BIG
ISLAND AND 310 MILES EAST OF OAHU.

CLOUD COVER WHICH FORMED ACROSS THE ISLANDS THIS AFTERNOON HAVE
BEGUN TO SLOUGH OFF ACROSS ADJACENT LEEWARD WATERS THIS EVENING.
OVERCAST LOW CLOUDS ARE NOTED ACROSS LEEWARD WATERS FROM OAHU TO
MAUI...AND ACROSS WATERS SOUTH AND SOUTHWEST OF THE BIG ISLAND.
REMAINING LEEWARD WATERS AND ALL WINDWARD WATERS HAVE SCATTERED LOW
CLOUDS TO CLEAR SKIES. CLOUD COVER HAS BEGUN TO DECREASE ACROSS LAND
AREAS...WITH ONLY PATCHY BROKEN LOW CLOUDS NOTED ACROSS LEEWARD
KAUAI AND THE KOOLAU AND WAIANAE SUMMITS OF OAHU. MOLOKAI APPEARS TO
BE MOSTLY CLEAR...BUT NEARBY LANAI HAS BROKEN TO OVERCAST LOW
CLOUDS. PATCHY BROKEN LOW CLOUDS CLING TO WINDWARD HALEAKALA SLOPES
ON MAUI. OVERCAST LOW CLOUDS PERSIST ACROSS KAU AND KONA SHORES AND
SLOPES ON THE BIG ISLAND...WHILE THE REST OF THE BIG ISLAND SEEMS TO
HAVE SCATTERED LOW CLOUDS TO CLEAR SKIES. SATELLITE LOOP SHOWS LOW
CLOUDS ARE MOVING ACROSS LOCAL WATERS GENERALLY TOWARD THE WEST
SOUTHWEST AT 10 MPH.

$$

POWELL







000
ATHW40 PHFO 300549
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC SAT AUG 30 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
34N140W...31N160W AND 29N180W...HAS TRIGGERED ISOLATED CUMULONIMBUS
WEST OF 171W BETWEEN 28N AND 32N AND AN AREA OF BROKEN TO OVERCAST
LAYERED CLOUDS WEST OF 172W BETWEEN 35N 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
31N152W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 21N153W...ABOUT 160 MILES NORTHEAST OF THE BIG
ISLAND AND 310 MILES EAST OF OAHU.

CLOUD COVER WHICH FORMED ACROSS THE ISLANDS THIS AFTERNOON HAVE
BEGUN TO SLOUGH OFF ACROSS ADJACENT LEEWARD WATERS THIS EVENING.
OVERCAST LOW CLOUDS ARE NOTED ACROSS LEEWARD WATERS FROM OAHU TO
MAUI...AND ACROSS WATERS SOUTH AND SOUTHWEST OF THE BIG ISLAND.
REMAINING LEEWARD WATERS AND ALL WINDWARD WATERS HAVE SCATTERED LOW
CLOUDS TO CLEAR SKIES. CLOUD COVER HAS BEGUN TO DECREASE ACROSS LAND
AREAS...WITH ONLY PATCHY BROKEN LOW CLOUDS NOTED ACROSS LEEWARD
KAUAI AND THE KOOLAU AND WAIANAE SUMMITS OF OAHU. MOLOKAI APPEARS TO
BE MOSTLY CLEAR...BUT NEARBY LANAI HAS BROKEN TO OVERCAST LOW
CLOUDS. PATCHY BROKEN LOW CLOUDS CLING TO WINDWARD HALEAKALA SLOPES
ON MAUI. OVERCAST LOW CLOUDS PERSIST ACROSS KAU AND KONA SHORES AND
SLOPES ON THE BIG ISLAND...WHILE THE REST OF THE BIG ISLAND SEEMS TO
HAVE SCATTERED LOW CLOUDS TO CLEAR SKIES. SATELLITE LOOP SHOWS LOW
CLOUDS ARE MOVING ACROSS LOCAL WATERS GENERALLY TOWARD THE WEST
SOUTHWEST AT 10 MPH.

$$

POWELL








000
FXHW60 PHFO 300147
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
347 PM HST FRI AUG 29 2014

.SYNOPSIS...
GENTLE TRADE WINDS WILL PREVAIL ACROSS THE STATE THROUGH THE
HOLIDAY WEEKEND. SEABREEZES WILL DEVELOP ACROSS SOME INTERIOR AND
LEEWARD SECTIONS EACH AFTERNOON...PRODUCING CLOUD BUILDUPS AND
SOME SHOWERS...WHILE LAND BREEZES BRING CLEARING AT NIGHT.
STRONGER TRADES MAY RETURN TO THE STATE BY THE MIDDLE OF NEXT
WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT SCATTERED SHOWERS DEVELOPING ACROSS LEEWARD
SECTIONS OF THE SMALLER ISLANDS...AS WELL AS ALONG THE KAU AND
KONA COASTS OF THE BIG ISLAND. AFTERNOON VISIBLE SATELLITE
IMAGERY REVEALS CONSIDERABLE CLOUDINESS ACROSS MOST OF THE
ISLANDS. THERE IS ALSO A SMALL LOW CLOUD SWIRL...APPARENTLY
MARKING A WEAK LOW LEVEL TROUGH...CENTERED ABOUT 200 MILES EAST-
NORTHEAST OF HILO AND MOVING SLOWLY TO THE WEST-SOUTHWEST.
REGIONAL SURFACE ANALYSIS DEPICTS AN EAST-WEST HIGH PRESSURE RIDGE
FAR TO OUR NORTH ALONG 40N...WITH A WEAK REMNANT LOW FROM FORMER
EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 30N 150W...AND A MUCH
LARGER REMNANT LOW FROM FORMER EAST PACIFIC TROPICAL CYCLONE MARIE
NEAR 29N 134W. THE 00Z SOUNDINGS AND MORE RECENT 88D VWP DATA
INDICATE GENTLE AND SLIGHTLY BACKED TRADES OVER THE STATE...WITH
PWATS RANGING FROM 1.02 INCHES AT LIHUE TO 1.5 INCHES AT HILO...
AND HIGHER THAN NORMAL INVERSIONS BASED AROUND 10K FEET. STABLE
CONDITIONS REMAIN IN PLACE ALOFT...WITH 500 MB TEMPS AROUND
-2C...AND A MID/UPPER LEVEL RIDGE CENTERED A FEW HUNDRED MILES
SOUTHWEST OF THE BIG ISLAND.

THROUGH THE HOLIDAY WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN RATHER WEAK AND FAR TO THE NORTH...DUE TO A COMBINATION OF
THE FORMER TROPICAL CYCLONE REMNANT LOWS MOVING SLOWLY WESTWARD
ALONG 30N AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD FROM THE
INTERNATIONAL DATELINE. THE WEAK LOW PRESSURE TROUGH INITIALLY
A COUPLE HUNDRED MILES EAST OF THE BIG ISLAND WILL MOVE WESTWARD
THROUGH THE STATE ON SATURDAY...POTENTIALLY WEAKENING OR DISRUPTING
THE TRADES FURTHER. THIS SYNOPTIC REGIME WILL ALLOW FOR LIGHT TO
GENTLE TRADE WINDS TO PREVAIL ACROSS THE STATE...WITH A CONVECTIVE
SEABREEZE PATTERN AND ASSOCIATED CLOUDS/SHOWERS LIKELY TO DEVELOP
ACROSS SOME INTERIOR AND LEEWARD AREAS EACH AFTERNOON. ENOUGH
TRADE FLOW WILL LINGER TO MAINTAIN SOME CLOUDS AND PASSING SHOWERS
OVER WINDWARD AREAS AS WELL...MOST LIKELY OCCURRING DURING THE
NIGHTS AND EARLY MORNINGS. LAND BREEZES SHOULD CLEAR OUT THE
REMAINDER OF THE SMALLER ISLANDS DURING THE NIGHTTIME HOURS.
NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY STABLE
REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF AREAS OF
SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH
THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE
POSSIBLE EACH AFTERNOON OVER INTERIOR AND LEEWARD AREAS...WHEN SLOW
MOVING SHOWERS WILL BE MOST LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE GENTLE TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE AT LEAST
THROUGH LABOR DAY...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH. WOULD EXPECT A CONTINUED HYBRID REGIME
TO CONTINUE OVER THE STATE...WITH SEABREEZES AND LAND BREEZES ACROSS
SOME LEEWARD AND INTERIOR SECTIONS...AS WELL AS SOME CLOUDS AND
PASSING SHOWERS PERSISTING WINDWARD. MOST OF THE GUIDANCE
INDICATES TRADES INCREASING BACK TO MODERATE LEVELS DURING THE
MIDDLE AND LATER PART OF NEXT WEEK...WHICH WOULD BRING A RETURN TO
TYPICAL TRADE WIND WEATHER ACROSS THE STATE.

&&

.AVIATION...
UNDER THE LIGHT TRADES...CLOUDS AND SHOWERS HAVE BEEN ABLE TO BUILD
UP OVER LEEWARD AREAS... MAINLY FOR MAUI COUNTY AND THE BIG ISLAND.
SOME OF THESE SHOWERS MAY HAVE ISOL MVFR CONDITIONS EMBEDDED. THIS
EVENING AND OVERNIGHT...LIGHT TO CALM WINDS WILL PREVAIL...AND ALLOW
FOR CLEARING...ESPECIALLY OVER LEEWARD AREAS. WINDWARD AREAS MAY
EXPERIENCE PASSING LIGHT SHOWERS. VFR CONDITIONS WILL PREVAIL. NO
AIRMETS ARE IN EFFECT.

&&

.MARINE...
SOUTH SWELL CONTINUES TO PRODUCE ADVISORY LEVEL SURF ACROSS THE
SOUTH FACING SHORES THIS AFTERNOON...AND EXPECT THIS SWELL TO
CONTINUE FOR AT LEAST ANOTHER 24 TO 36 HOURS. HAVE EXTENDED THE
HIGH SURF ADVISORY FOR SOUTH FACING SHORES THROUGH 6 AM SUNDAY
MORNING. ANOTHER SOUTH SWELL IS FORECAST TO ARRIVE ON SUNDAY...
WITH YET ANOTHER VERY LONG PERIOD SOUTH SWELL FORECAST TO ARRIVE
ON TUESDAY AND CONTINUE WEDNESDAY. SURF MAY WELL REMAIN NEAR OR
ABOVE ADVISORY LEVELS ON THE SOUTH FACING SHORES THROUGH THE NEXT
SEVERAL DAYS.

THE EAST SWELL APPEARS TO HAVE MAXED OUT BELOW LEVELS NEEDED TO
PRODUCE ADVISORY CRITERIA SURF...AND HAVE CANCELLED THE ADVISORY
FOR EAST FACING SHORES.

SMALL CRAFT ADVISORY CRITERIA WINDS OF 25 KT OR GREATER ARE NOT
EXPECTED THROUGH THE HOLIDAY WEEKEND.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-MOLOKAI
LEEWARD-LANAI MAKAI-KAHOOLAWE-MAUI LEEWARD WEST-MAUI CENTRAL
VALLEY-LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH
AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...EATON






000
FXHW60 PHFO 300147
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
347 PM HST FRI AUG 29 2014

.SYNOPSIS...
GENTLE TRADE WINDS WILL PREVAIL ACROSS THE STATE THROUGH THE
HOLIDAY WEEKEND. SEABREEZES WILL DEVELOP ACROSS SOME INTERIOR AND
LEEWARD SECTIONS EACH AFTERNOON...PRODUCING CLOUD BUILDUPS AND
SOME SHOWERS...WHILE LAND BREEZES BRING CLEARING AT NIGHT.
STRONGER TRADES MAY RETURN TO THE STATE BY THE MIDDLE OF NEXT
WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT SCATTERED SHOWERS DEVELOPING ACROSS LEEWARD
SECTIONS OF THE SMALLER ISLANDS...AS WELL AS ALONG THE KAU AND
KONA COASTS OF THE BIG ISLAND. AFTERNOON VISIBLE SATELLITE
IMAGERY REVEALS CONSIDERABLE CLOUDINESS ACROSS MOST OF THE
ISLANDS. THERE IS ALSO A SMALL LOW CLOUD SWIRL...APPARENTLY
MARKING A WEAK LOW LEVEL TROUGH...CENTERED ABOUT 200 MILES EAST-
NORTHEAST OF HILO AND MOVING SLOWLY TO THE WEST-SOUTHWEST.
REGIONAL SURFACE ANALYSIS DEPICTS AN EAST-WEST HIGH PRESSURE RIDGE
FAR TO OUR NORTH ALONG 40N...WITH A WEAK REMNANT LOW FROM FORMER
EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 30N 150W...AND A MUCH
LARGER REMNANT LOW FROM FORMER EAST PACIFIC TROPICAL CYCLONE MARIE
NEAR 29N 134W. THE 00Z SOUNDINGS AND MORE RECENT 88D VWP DATA
INDICATE GENTLE AND SLIGHTLY BACKED TRADES OVER THE STATE...WITH
PWATS RANGING FROM 1.02 INCHES AT LIHUE TO 1.5 INCHES AT HILO...
AND HIGHER THAN NORMAL INVERSIONS BASED AROUND 10K FEET. STABLE
CONDITIONS REMAIN IN PLACE ALOFT...WITH 500 MB TEMPS AROUND
-2C...AND A MID/UPPER LEVEL RIDGE CENTERED A FEW HUNDRED MILES
SOUTHWEST OF THE BIG ISLAND.

THROUGH THE HOLIDAY WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN RATHER WEAK AND FAR TO THE NORTH...DUE TO A COMBINATION OF
THE FORMER TROPICAL CYCLONE REMNANT LOWS MOVING SLOWLY WESTWARD
ALONG 30N AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD FROM THE
INTERNATIONAL DATELINE. THE WEAK LOW PRESSURE TROUGH INITIALLY
A COUPLE HUNDRED MILES EAST OF THE BIG ISLAND WILL MOVE WESTWARD
THROUGH THE STATE ON SATURDAY...POTENTIALLY WEAKENING OR DISRUPTING
THE TRADES FURTHER. THIS SYNOPTIC REGIME WILL ALLOW FOR LIGHT TO
GENTLE TRADE WINDS TO PREVAIL ACROSS THE STATE...WITH A CONVECTIVE
SEABREEZE PATTERN AND ASSOCIATED CLOUDS/SHOWERS LIKELY TO DEVELOP
ACROSS SOME INTERIOR AND LEEWARD AREAS EACH AFTERNOON. ENOUGH
TRADE FLOW WILL LINGER TO MAINTAIN SOME CLOUDS AND PASSING SHOWERS
OVER WINDWARD AREAS AS WELL...MOST LIKELY OCCURRING DURING THE
NIGHTS AND EARLY MORNINGS. LAND BREEZES SHOULD CLEAR OUT THE
REMAINDER OF THE SMALLER ISLANDS DURING THE NIGHTTIME HOURS.
NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY STABLE
REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF AREAS OF
SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH
THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE
POSSIBLE EACH AFTERNOON OVER INTERIOR AND LEEWARD AREAS...WHEN SLOW
MOVING SHOWERS WILL BE MOST LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE GENTLE TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE AT LEAST
THROUGH LABOR DAY...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH. WOULD EXPECT A CONTINUED HYBRID REGIME
TO CONTINUE OVER THE STATE...WITH SEABREEZES AND LAND BREEZES ACROSS
SOME LEEWARD AND INTERIOR SECTIONS...AS WELL AS SOME CLOUDS AND
PASSING SHOWERS PERSISTING WINDWARD. MOST OF THE GUIDANCE
INDICATES TRADES INCREASING BACK TO MODERATE LEVELS DURING THE
MIDDLE AND LATER PART OF NEXT WEEK...WHICH WOULD BRING A RETURN TO
TYPICAL TRADE WIND WEATHER ACROSS THE STATE.

&&

.AVIATION...
UNDER THE LIGHT TRADES...CLOUDS AND SHOWERS HAVE BEEN ABLE TO BUILD
UP OVER LEEWARD AREAS... MAINLY FOR MAUI COUNTY AND THE BIG ISLAND.
SOME OF THESE SHOWERS MAY HAVE ISOL MVFR CONDITIONS EMBEDDED. THIS
EVENING AND OVERNIGHT...LIGHT TO CALM WINDS WILL PREVAIL...AND ALLOW
FOR CLEARING...ESPECIALLY OVER LEEWARD AREAS. WINDWARD AREAS MAY
EXPERIENCE PASSING LIGHT SHOWERS. VFR CONDITIONS WILL PREVAIL. NO
AIRMETS ARE IN EFFECT.

&&

.MARINE...
SOUTH SWELL CONTINUES TO PRODUCE ADVISORY LEVEL SURF ACROSS THE
SOUTH FACING SHORES THIS AFTERNOON...AND EXPECT THIS SWELL TO
CONTINUE FOR AT LEAST ANOTHER 24 TO 36 HOURS. HAVE EXTENDED THE
HIGH SURF ADVISORY FOR SOUTH FACING SHORES THROUGH 6 AM SUNDAY
MORNING. ANOTHER SOUTH SWELL IS FORECAST TO ARRIVE ON SUNDAY...
WITH YET ANOTHER VERY LONG PERIOD SOUTH SWELL FORECAST TO ARRIVE
ON TUESDAY AND CONTINUE WEDNESDAY. SURF MAY WELL REMAIN NEAR OR
ABOVE ADVISORY LEVELS ON THE SOUTH FACING SHORES THROUGH THE NEXT
SEVERAL DAYS.

THE EAST SWELL APPEARS TO HAVE MAXED OUT BELOW LEVELS NEEDED TO
PRODUCE ADVISORY CRITERIA SURF...AND HAVE CANCELLED THE ADVISORY
FOR EAST FACING SHORES.

SMALL CRAFT ADVISORY CRITERIA WINDS OF 25 KT OR GREATER ARE NOT
EXPECTED THROUGH THE HOLIDAY WEEKEND.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SUNDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-MOLOKAI
LEEWARD-LANAI MAKAI-KAHOOLAWE-MAUI LEEWARD WEST-MAUI CENTRAL
VALLEY-LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH
AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...EATON







000
ATHW40 PHFO 300042
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT AUG 30 2014

BASED ON DATA THROUGH 0000 UTC AUGUST 29 2014

JUST ABOUT ALL THE ISLANDS PICKED UP SOME CLOUDS AS THE DAY WORE
ON...MOSTLY AS THE RESULT OF THE TRADES BEING LIGHT ENOUGH...AMPLE
LOW LEVEL MOISTURE...AND DAYTIME HEATING. THE KAU DISTRICT OF THE
BIG ISLAND IS BEING BESIEGED THIS AFTERNOON BY HEAVY LOW CLOUDS...
ESPECIALLY THE KAU DISTRICT.JUST ABOUT THE ONLY CLEAR AREAS ARE
ALONG THE HAMAKUA COAST INCLUDING THE HILO AREA AND THE NORTHERN TIP
OF THE ISLAND. THESE CLOUDS EXTENDED TO THE SUMMITS OF MAUNA KEA
AND MAUNA LOA. WEATHER RADAR IS DETECTING SCATTERED SHOWERS WITH THE
CLOUDS OVER THE KAU DISTRICT AND ISOLATED SHOWERS FROM WAIKOLOA TO
EAST OF KONA AIRPORT.

LOCAL CLOUDINESS ARE BEING OBSERVED WITH THE SMALLER ISLANDS
ESPECIALLY ALONG THE LEEWARD DISTRICTS...SUCH AS THE WAIANAE
DISTRICT ON OAHU...WAIMEA CANYON ON KAUAI...THE SOUTH SHORE OF
MOLOKAI WEST OF KAUNAKAKAI...THE SOUTHERN TIP OF LANAI...UP COUNTRY
MAUI FROM KEOKEA DOWN TO WAILEA...EXTENDING ACROSS THE CHANNEL TO
KAHOOLAWE...AND THE WEST MAUI MOUNTAINS. THESE CLOUDS HAD TOPS TO
BETWEEN 10 AND 13 THOUSAND FEET.

THE SATELLITE IMAGERY SHOWS WIDELY DISPERSED SHOWER BEARING CLOUDS
STRETCHED ACROSS THE WINDWARD WATERS FROM THE BIG ISLAND TO KAUAI.
THEY ARE BEING CARRIED SOUTHWESTWARD BY A NORTHEAST WIND FLOW
CLOCKED AT 15 TO 20 MPH.

THERE ARE THREE AREAS OF CLOUDINESS ON SATELLITE EAST OF THE BIG
ISLAND TO 140 WEST LONGITUDE. THESE AREAS ARE AREAS OF TROUGHS...
ALTHOUGH THE ONE 220 MILES NORTHEAST OF THE BIG ISLAND HAS CYCLONIC
CIRCULATION. THIS FEATURE IS MOVING WESTWARD SLOWLY. THE TROUGH
FURTHER EAST...ABOUT 650 MILES EAST OF THE BIG ISLAND IS ALSO MOVING
WESTWARD SLOWLY. THE TROUGH 460 MILES SOUTHEAST OF THE BIG ISLAND IS
NEARLY STATIONARY.

WIDELY SCATTERED CUMULONIMBUS CLOUDS /CB/ ARE PRESENT FAR TO THE
NORTHWEST OF KAUAI...BASICALLY NORTH OF 28N BETWEEN 162W AND THE
DATELINE.

WATER VAPOR IMAGERY REVEALS AN UPPER LEVEL LOW NEAR 28N165W OR 550
MILES NORTHWEST OF KAUAI. IT APPEARS TO BE DRIFTING TOWARD THE WEST
NORTHWEST.

A DENSE AREA OF LAYERED CLOUDS WITH EMBEDDED CB/S IS LOCATED OVER
THE TROPICS ABOUT 500 MILES SOUTH OF THE BIG ISLAND...AND IS PART OF
THE INTERTROPICAL CONVERGENCE ZONE. THE CLOUDS ARE CONCENTRATED IN
AN AREA BETWEEN 12N AND 08N FROM 154W TO 166W. HIGHEST CLOUD TOP IS
48000 FEET.


$$

LAU










000
ATHW40 PHFO 300042
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT AUG 30 2014

BASED ON DATA THROUGH 0000 UTC AUGUST 29 2014

JUST ABOUT ALL THE ISLANDS PICKED UP SOME CLOUDS AS THE DAY WORE
ON...MOSTLY AS THE RESULT OF THE TRADES BEING LIGHT ENOUGH...AMPLE
LOW LEVEL MOISTURE...AND DAYTIME HEATING. THE KAU DISTRICT OF THE
BIG ISLAND IS BEING BESIEGED THIS AFTERNOON BY HEAVY LOW CLOUDS...
ESPECIALLY THE KAU DISTRICT.JUST ABOUT THE ONLY CLEAR AREAS ARE
ALONG THE HAMAKUA COAST INCLUDING THE HILO AREA AND THE NORTHERN TIP
OF THE ISLAND. THESE CLOUDS EXTENDED TO THE SUMMITS OF MAUNA KEA
AND MAUNA LOA. WEATHER RADAR IS DETECTING SCATTERED SHOWERS WITH THE
CLOUDS OVER THE KAU DISTRICT AND ISOLATED SHOWERS FROM WAIKOLOA TO
EAST OF KONA AIRPORT.

LOCAL CLOUDINESS ARE BEING OBSERVED WITH THE SMALLER ISLANDS
ESPECIALLY ALONG THE LEEWARD DISTRICTS...SUCH AS THE WAIANAE
DISTRICT ON OAHU...WAIMEA CANYON ON KAUAI...THE SOUTH SHORE OF
MOLOKAI WEST OF KAUNAKAKAI...THE SOUTHERN TIP OF LANAI...UP COUNTRY
MAUI FROM KEOKEA DOWN TO WAILEA...EXTENDING ACROSS THE CHANNEL TO
KAHOOLAWE...AND THE WEST MAUI MOUNTAINS. THESE CLOUDS HAD TOPS TO
BETWEEN 10 AND 13 THOUSAND FEET.

THE SATELLITE IMAGERY SHOWS WIDELY DISPERSED SHOWER BEARING CLOUDS
STRETCHED ACROSS THE WINDWARD WATERS FROM THE BIG ISLAND TO KAUAI.
THEY ARE BEING CARRIED SOUTHWESTWARD BY A NORTHEAST WIND FLOW
CLOCKED AT 15 TO 20 MPH.

THERE ARE THREE AREAS OF CLOUDINESS ON SATELLITE EAST OF THE BIG
ISLAND TO 140 WEST LONGITUDE. THESE AREAS ARE AREAS OF TROUGHS...
ALTHOUGH THE ONE 220 MILES NORTHEAST OF THE BIG ISLAND HAS CYCLONIC
CIRCULATION. THIS FEATURE IS MOVING WESTWARD SLOWLY. THE TROUGH
FURTHER EAST...ABOUT 650 MILES EAST OF THE BIG ISLAND IS ALSO MOVING
WESTWARD SLOWLY. THE TROUGH 460 MILES SOUTHEAST OF THE BIG ISLAND IS
NEARLY STATIONARY.

WIDELY SCATTERED CUMULONIMBUS CLOUDS /CB/ ARE PRESENT FAR TO THE
NORTHWEST OF KAUAI...BASICALLY NORTH OF 28N BETWEEN 162W AND THE
DATELINE.

WATER VAPOR IMAGERY REVEALS AN UPPER LEVEL LOW NEAR 28N165W OR 550
MILES NORTHWEST OF KAUAI. IT APPEARS TO BE DRIFTING TOWARD THE WEST
NORTHWEST.

A DENSE AREA OF LAYERED CLOUDS WITH EMBEDDED CB/S IS LOCATED OVER
THE TROPICS ABOUT 500 MILES SOUTH OF THE BIG ISLAND...AND IS PART OF
THE INTERTROPICAL CONVERGENCE ZONE. THE CLOUDS ARE CONCENTRATED IN
AN AREA BETWEEN 12N AND 08N FROM 154W TO 166W. HIGHEST CLOUD TOP IS
48000 FEET.


$$

LAU










000
ATHW40 PHFO 300042
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT AUG 30 2014

BASED ON DATA THROUGH 0000 UTC AUGUST 29 2014

JUST ABOUT ALL THE ISLANDS PICKED UP SOME CLOUDS AS THE DAY WORE
ON...MOSTLY AS THE RESULT OF THE TRADES BEING LIGHT ENOUGH...AMPLE
LOW LEVEL MOISTURE...AND DAYTIME HEATING. THE KAU DISTRICT OF THE
BIG ISLAND IS BEING BESIEGED THIS AFTERNOON BY HEAVY LOW CLOUDS...
ESPECIALLY THE KAU DISTRICT.JUST ABOUT THE ONLY CLEAR AREAS ARE
ALONG THE HAMAKUA COAST INCLUDING THE HILO AREA AND THE NORTHERN TIP
OF THE ISLAND. THESE CLOUDS EXTENDED TO THE SUMMITS OF MAUNA KEA
AND MAUNA LOA. WEATHER RADAR IS DETECTING SCATTERED SHOWERS WITH THE
CLOUDS OVER THE KAU DISTRICT AND ISOLATED SHOWERS FROM WAIKOLOA TO
EAST OF KONA AIRPORT.

LOCAL CLOUDINESS ARE BEING OBSERVED WITH THE SMALLER ISLANDS
ESPECIALLY ALONG THE LEEWARD DISTRICTS...SUCH AS THE WAIANAE
DISTRICT ON OAHU...WAIMEA CANYON ON KAUAI...THE SOUTH SHORE OF
MOLOKAI WEST OF KAUNAKAKAI...THE SOUTHERN TIP OF LANAI...UP COUNTRY
MAUI FROM KEOKEA DOWN TO WAILEA...EXTENDING ACROSS THE CHANNEL TO
KAHOOLAWE...AND THE WEST MAUI MOUNTAINS. THESE CLOUDS HAD TOPS TO
BETWEEN 10 AND 13 THOUSAND FEET.

THE SATELLITE IMAGERY SHOWS WIDELY DISPERSED SHOWER BEARING CLOUDS
STRETCHED ACROSS THE WINDWARD WATERS FROM THE BIG ISLAND TO KAUAI.
THEY ARE BEING CARRIED SOUTHWESTWARD BY A NORTHEAST WIND FLOW
CLOCKED AT 15 TO 20 MPH.

THERE ARE THREE AREAS OF CLOUDINESS ON SATELLITE EAST OF THE BIG
ISLAND TO 140 WEST LONGITUDE. THESE AREAS ARE AREAS OF TROUGHS...
ALTHOUGH THE ONE 220 MILES NORTHEAST OF THE BIG ISLAND HAS CYCLONIC
CIRCULATION. THIS FEATURE IS MOVING WESTWARD SLOWLY. THE TROUGH
FURTHER EAST...ABOUT 650 MILES EAST OF THE BIG ISLAND IS ALSO MOVING
WESTWARD SLOWLY. THE TROUGH 460 MILES SOUTHEAST OF THE BIG ISLAND IS
NEARLY STATIONARY.

WIDELY SCATTERED CUMULONIMBUS CLOUDS /CB/ ARE PRESENT FAR TO THE
NORTHWEST OF KAUAI...BASICALLY NORTH OF 28N BETWEEN 162W AND THE
DATELINE.

WATER VAPOR IMAGERY REVEALS AN UPPER LEVEL LOW NEAR 28N165W OR 550
MILES NORTHWEST OF KAUAI. IT APPEARS TO BE DRIFTING TOWARD THE WEST
NORTHWEST.

A DENSE AREA OF LAYERED CLOUDS WITH EMBEDDED CB/S IS LOCATED OVER
THE TROPICS ABOUT 500 MILES SOUTH OF THE BIG ISLAND...AND IS PART OF
THE INTERTROPICAL CONVERGENCE ZONE. THE CLOUDS ARE CONCENTRATED IN
AN AREA BETWEEN 12N AND 08N FROM 154W TO 166W. HIGHEST CLOUD TOP IS
48000 FEET.


$$

LAU










000
ATHW40 PHFO 300042
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0030 UTC SAT AUG 30 2014

BASED ON DATA THROUGH 0000 UTC AUGUST 29 2014

JUST ABOUT ALL THE ISLANDS PICKED UP SOME CLOUDS AS THE DAY WORE
ON...MOSTLY AS THE RESULT OF THE TRADES BEING LIGHT ENOUGH...AMPLE
LOW LEVEL MOISTURE...AND DAYTIME HEATING. THE KAU DISTRICT OF THE
BIG ISLAND IS BEING BESIEGED THIS AFTERNOON BY HEAVY LOW CLOUDS...
ESPECIALLY THE KAU DISTRICT.JUST ABOUT THE ONLY CLEAR AREAS ARE
ALONG THE HAMAKUA COAST INCLUDING THE HILO AREA AND THE NORTHERN TIP
OF THE ISLAND. THESE CLOUDS EXTENDED TO THE SUMMITS OF MAUNA KEA
AND MAUNA LOA. WEATHER RADAR IS DETECTING SCATTERED SHOWERS WITH THE
CLOUDS OVER THE KAU DISTRICT AND ISOLATED SHOWERS FROM WAIKOLOA TO
EAST OF KONA AIRPORT.

LOCAL CLOUDINESS ARE BEING OBSERVED WITH THE SMALLER ISLANDS
ESPECIALLY ALONG THE LEEWARD DISTRICTS...SUCH AS THE WAIANAE
DISTRICT ON OAHU...WAIMEA CANYON ON KAUAI...THE SOUTH SHORE OF
MOLOKAI WEST OF KAUNAKAKAI...THE SOUTHERN TIP OF LANAI...UP COUNTRY
MAUI FROM KEOKEA DOWN TO WAILEA...EXTENDING ACROSS THE CHANNEL TO
KAHOOLAWE...AND THE WEST MAUI MOUNTAINS. THESE CLOUDS HAD TOPS TO
BETWEEN 10 AND 13 THOUSAND FEET.

THE SATELLITE IMAGERY SHOWS WIDELY DISPERSED SHOWER BEARING CLOUDS
STRETCHED ACROSS THE WINDWARD WATERS FROM THE BIG ISLAND TO KAUAI.
THEY ARE BEING CARRIED SOUTHWESTWARD BY A NORTHEAST WIND FLOW
CLOCKED AT 15 TO 20 MPH.

THERE ARE THREE AREAS OF CLOUDINESS ON SATELLITE EAST OF THE BIG
ISLAND TO 140 WEST LONGITUDE. THESE AREAS ARE AREAS OF TROUGHS...
ALTHOUGH THE ONE 220 MILES NORTHEAST OF THE BIG ISLAND HAS CYCLONIC
CIRCULATION. THIS FEATURE IS MOVING WESTWARD SLOWLY. THE TROUGH
FURTHER EAST...ABOUT 650 MILES EAST OF THE BIG ISLAND IS ALSO MOVING
WESTWARD SLOWLY. THE TROUGH 460 MILES SOUTHEAST OF THE BIG ISLAND IS
NEARLY STATIONARY.

WIDELY SCATTERED CUMULONIMBUS CLOUDS /CB/ ARE PRESENT FAR TO THE
NORTHWEST OF KAUAI...BASICALLY NORTH OF 28N BETWEEN 162W AND THE
DATELINE.

WATER VAPOR IMAGERY REVEALS AN UPPER LEVEL LOW NEAR 28N165W OR 550
MILES NORTHWEST OF KAUAI. IT APPEARS TO BE DRIFTING TOWARD THE WEST
NORTHWEST.

A DENSE AREA OF LAYERED CLOUDS WITH EMBEDDED CB/S IS LOCATED OVER
THE TROPICS ABOUT 500 MILES SOUTH OF THE BIG ISLAND...AND IS PART OF
THE INTERTROPICAL CONVERGENCE ZONE. THE CLOUDS ARE CONCENTRATED IN
AN AREA BETWEEN 12N AND 08N FROM 154W TO 166W. HIGHEST CLOUD TOP IS
48000 FEET.


$$

LAU










000
FXHW60 PHFO 291946
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
946 AM HST FRI AUG 29 2014

.SYNOPSIS...
LIGHT TRADE WINDS WILL PREVAIL ACROSS THE STATE TODAY THROUGH
THE WEEKEND AND INTO EARLY NEXT WEEK. SEABREEZES WILL DEVELOP
ACROSS MANY INTERIOR AND LEEWARD SECTIONS EACH AFTERNOON...
PRODUCING CLOUD BUILDUPS AND SOME SHOWERS...WHILE LAND BREEZES
BRING CLEARING AT NIGHT. STRONGER TRADES MAY RETURN TO THE
STATE AROUND THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT SCATTERED SHOWERS ALONG THE WINDWARD COASTS OF
THE BIG ISLAND AND EAST MAUI...WITH JUST ISOLATED SMALL SHOWERS
DOTTING THE WATERS ELSEWHERE AROUND THE STATE. RAIN GAUGE DATA
INDICATE LIGHT ACCUMULATIONS AT A FEW WINDWARD STATIONS DURING THE
PAST SIX HOURS...WITH MOST PLACES REMAINING DRY. EARLY MORNING
VISIBLE SATELLITE IMAGERY REVEALS A SMALL LOW CLOUD SWIRL...
APPARENTLY MARKING A WEAK LOW LEVEL TROUGH...CENTERED ABOUT 250
MILES EAST-NORTHEAST OF HILO AND MOVING SLOWLY TO THE SOUTHWEST.
REGIONAL SURFACE ANALYSIS DEPICTS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO OUR NORTH ALONG 40N...WITH A WEAK REMNANT LOW FROM
FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 30N 148W...AND
A MUCH LARGER REMNANT LOW FROM FORMER EAST PACIFIC TROPICAL
CYCLONE MARIE NEAR 29N 133W. THE 12Z SOUNDINGS AND MORE RECENT
88D VWP DATA INDICATE WEAKENING TRADES OVER THE STATE...WITH
NEAR NORMAL PWATS OF 1.3 TO 1.4 INCHES...AND HIGHER THAN NORMAL
INVERSIONS BASED AROUND 10K FEET. STABLE CONDITIONS REMAIN IN
PLACE ALOFT...WITH 500 MB TEMPS AROUND -2C...AND A MID/UPPER LEVEL
RIDGE CENTERED A FEW HUNDRED MILES SOUTHWEST OF THE BIG ISLAND.

IN THE NEAR TERM...WITH THE TRADES WEAKENING...EXPECT SEABREEZES
TO DEVELOP ACROSS MANY INTERIOR AND LEEWARD SECTIONS THIS
AFTERNOON. THIS SHOULD ENCOURAGE CLOUD BUILDUPS ALONG WITH
SCATTERED SHOWERS IN THESE AREAS. ISOLATED HEAVIER DOWNPOURS
WILL BE POSSIBLE WITH SLOW MOVING SHOWERS. OTHERWISE...SHOWERS
MAY CONTINUE TO BE ENHANCED ALONG THE WINDWARD COASTS OF MAUI
AND THE BIG ISLAND...AS AN AREA OF ENHANCED MOISTURE ASSOCIATED
WITH THE APPROACHING LOW LEVEL TROUGH IMPACTS THOSE AREAS. MAY
NEED TO NUDGE SHOWER COVERAGE UP FOR THOSE WINDWARD AREAS...
OTHERWISE THE EXISTING FORECAST APPEARS TO BE ON TRACK.

THROUGH THE HOLIDAY WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN RATHER WEAK AND FAR TO THE NORTH...DUE TO A COMBINATION OF
THE FORMER TROPICAL CYCLONE REMNANT LOWS MOVING SLOWLY WESTWARD
ALONG 30N AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD FROM THE
INTERNATIONAL DATELINE. THIS SYNOPTIC REGIME WILL ALLOW FOR LIGHT
TRADE WINDS TO CONTINUE ACROSS THE STATE...WITH A CONVECTIVE
SEABREEZE PATTERN AND ASSOCIATED CLOUDS/SHOWERS LIKELY TO DEVELOP
ACROSS INTERIOR AND LEEWARD AREAS EACH AFTERNOON. SOME CLOUDS AND
PASSING SHOWERS WILL LINGER OVER WINDWARD AREAS AS WELL...MOST
LIKELY OCCURRING DURING THE NIGHTS AND EARLY MORNINGS. LAND BREEZES
SHOULD CLEAR OUT THE REMAINDER OF THE SMALLER ISLANDS DURING THE
NIGHTTIME HOURS. NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A
FAIRLY STABLE REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF
AREAS OF SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING
THROUGH THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS
WILL BE POSSIBLE EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE
MOST LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE THROUGH
ABOUT NEXT TUESDAY...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH. WOULD EXPECT A CONTINUED SEABREEZE/LAND
BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS... WITH SOME
CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. MOST OF THE
GUIDANCE INDICATES TRADES INCREASING BACK TO MODERATE LEVELS
DURING THE MIDDLE AND LATER PART OF NEXT WEEK...WHICH WOULD BRING
A RETURN TO TYPICAL TRADE WIND WEATHER ACROSS THE STATE.

&&

.AVIATION...
A LIGHT TRADE WIND PATTERN MAY ALLOW FOR THE DEVELOPMENT OF
SEABREEZES THIS AFTERNOON...INTERIOR CLOUD BUILD UPS ARE LIKELY
WITH THIS OCCURRING. A REGION OF LOWER CLOUDS JUST NE OF MAUI AND
THE BIG ISLAND THIS MORNING HAS BECOME INCREASINGLY ISOLATED.
HOWEVER...PASSING CLOUDS AND SHOWERS...MAINLY ALONG WINDWARD BIG
ISLAND AND MAUI...CAN BE EXPECTED. OTHERWISE...VFR CONDITIONS WILL
PREVAIL. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
THE ANTICIPATED LONG PERIOD EASTERLY SWELL ARRIVED AT THE CDIP
NEAR SHORE BUOYS NORTH OF OAHU AND MAUI DURING THE PREDAWN HOURS.
BARBERS POINT CDIP BUOY SHOWS SOUTH SWELL CONTINUING AS WELL.
EXPECT MARGINAL ADVISORY LEVEL SURF ON BOTH EAST AND SOUTH FACING
SHORES TODAY INTO TONIGHT. STRONG CURRENTS WILL DEVELOP IN SOME
AREAS DUE THE INTERACTION BETWEEN THE LONG PERIOD EAST AND SOUTH
SWELLS. THE SURF FROM BOTH SWELLS WILL SLOWLY DECLINE DURING THE
WEEKEND.

SMALL CRAFT ADVISORY CRITERIA WINDS OF 25 KT OR GREATER ARE NOT
EXPECTED THROUGH THE HOLIDAY WEEKEND. HOWEVER...THE LONG PERIOD
EASTERLY AND SOUTHERLY SWELL MENTIONED ABOVE COULD BRING CONFUSED
SEAS TO AREAS EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...EATON






000
FXHW60 PHFO 291946
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
946 AM HST FRI AUG 29 2014

.SYNOPSIS...
LIGHT TRADE WINDS WILL PREVAIL ACROSS THE STATE TODAY THROUGH
THE WEEKEND AND INTO EARLY NEXT WEEK. SEABREEZES WILL DEVELOP
ACROSS MANY INTERIOR AND LEEWARD SECTIONS EACH AFTERNOON...
PRODUCING CLOUD BUILDUPS AND SOME SHOWERS...WHILE LAND BREEZES
BRING CLEARING AT NIGHT. STRONGER TRADES MAY RETURN TO THE
STATE AROUND THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT SCATTERED SHOWERS ALONG THE WINDWARD COASTS OF
THE BIG ISLAND AND EAST MAUI...WITH JUST ISOLATED SMALL SHOWERS
DOTTING THE WATERS ELSEWHERE AROUND THE STATE. RAIN GAUGE DATA
INDICATE LIGHT ACCUMULATIONS AT A FEW WINDWARD STATIONS DURING THE
PAST SIX HOURS...WITH MOST PLACES REMAINING DRY. EARLY MORNING
VISIBLE SATELLITE IMAGERY REVEALS A SMALL LOW CLOUD SWIRL...
APPARENTLY MARKING A WEAK LOW LEVEL TROUGH...CENTERED ABOUT 250
MILES EAST-NORTHEAST OF HILO AND MOVING SLOWLY TO THE SOUTHWEST.
REGIONAL SURFACE ANALYSIS DEPICTS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO OUR NORTH ALONG 40N...WITH A WEAK REMNANT LOW FROM
FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 30N 148W...AND
A MUCH LARGER REMNANT LOW FROM FORMER EAST PACIFIC TROPICAL
CYCLONE MARIE NEAR 29N 133W. THE 12Z SOUNDINGS AND MORE RECENT
88D VWP DATA INDICATE WEAKENING TRADES OVER THE STATE...WITH
NEAR NORMAL PWATS OF 1.3 TO 1.4 INCHES...AND HIGHER THAN NORMAL
INVERSIONS BASED AROUND 10K FEET. STABLE CONDITIONS REMAIN IN
PLACE ALOFT...WITH 500 MB TEMPS AROUND -2C...AND A MID/UPPER LEVEL
RIDGE CENTERED A FEW HUNDRED MILES SOUTHWEST OF THE BIG ISLAND.

IN THE NEAR TERM...WITH THE TRADES WEAKENING...EXPECT SEABREEZES
TO DEVELOP ACROSS MANY INTERIOR AND LEEWARD SECTIONS THIS
AFTERNOON. THIS SHOULD ENCOURAGE CLOUD BUILDUPS ALONG WITH
SCATTERED SHOWERS IN THESE AREAS. ISOLATED HEAVIER DOWNPOURS
WILL BE POSSIBLE WITH SLOW MOVING SHOWERS. OTHERWISE...SHOWERS
MAY CONTINUE TO BE ENHANCED ALONG THE WINDWARD COASTS OF MAUI
AND THE BIG ISLAND...AS AN AREA OF ENHANCED MOISTURE ASSOCIATED
WITH THE APPROACHING LOW LEVEL TROUGH IMPACTS THOSE AREAS. MAY
NEED TO NUDGE SHOWER COVERAGE UP FOR THOSE WINDWARD AREAS...
OTHERWISE THE EXISTING FORECAST APPEARS TO BE ON TRACK.

THROUGH THE HOLIDAY WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN RATHER WEAK AND FAR TO THE NORTH...DUE TO A COMBINATION OF
THE FORMER TROPICAL CYCLONE REMNANT LOWS MOVING SLOWLY WESTWARD
ALONG 30N AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD FROM THE
INTERNATIONAL DATELINE. THIS SYNOPTIC REGIME WILL ALLOW FOR LIGHT
TRADE WINDS TO CONTINUE ACROSS THE STATE...WITH A CONVECTIVE
SEABREEZE PATTERN AND ASSOCIATED CLOUDS/SHOWERS LIKELY TO DEVELOP
ACROSS INTERIOR AND LEEWARD AREAS EACH AFTERNOON. SOME CLOUDS AND
PASSING SHOWERS WILL LINGER OVER WINDWARD AREAS AS WELL...MOST
LIKELY OCCURRING DURING THE NIGHTS AND EARLY MORNINGS. LAND BREEZES
SHOULD CLEAR OUT THE REMAINDER OF THE SMALLER ISLANDS DURING THE
NIGHTTIME HOURS. NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A
FAIRLY STABLE REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF
AREAS OF SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING
THROUGH THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS
WILL BE POSSIBLE EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE
MOST LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE THROUGH
ABOUT NEXT TUESDAY...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH. WOULD EXPECT A CONTINUED SEABREEZE/LAND
BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS... WITH SOME
CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. MOST OF THE
GUIDANCE INDICATES TRADES INCREASING BACK TO MODERATE LEVELS
DURING THE MIDDLE AND LATER PART OF NEXT WEEK...WHICH WOULD BRING
A RETURN TO TYPICAL TRADE WIND WEATHER ACROSS THE STATE.

&&

.AVIATION...
A LIGHT TRADE WIND PATTERN MAY ALLOW FOR THE DEVELOPMENT OF
SEABREEZES THIS AFTERNOON...INTERIOR CLOUD BUILD UPS ARE LIKELY
WITH THIS OCCURRING. A REGION OF LOWER CLOUDS JUST NE OF MAUI AND
THE BIG ISLAND THIS MORNING HAS BECOME INCREASINGLY ISOLATED.
HOWEVER...PASSING CLOUDS AND SHOWERS...MAINLY ALONG WINDWARD BIG
ISLAND AND MAUI...CAN BE EXPECTED. OTHERWISE...VFR CONDITIONS WILL
PREVAIL. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
THE ANTICIPATED LONG PERIOD EASTERLY SWELL ARRIVED AT THE CDIP
NEAR SHORE BUOYS NORTH OF OAHU AND MAUI DURING THE PREDAWN HOURS.
BARBERS POINT CDIP BUOY SHOWS SOUTH SWELL CONTINUING AS WELL.
EXPECT MARGINAL ADVISORY LEVEL SURF ON BOTH EAST AND SOUTH FACING
SHORES TODAY INTO TONIGHT. STRONG CURRENTS WILL DEVELOP IN SOME
AREAS DUE THE INTERACTION BETWEEN THE LONG PERIOD EAST AND SOUTH
SWELLS. THE SURF FROM BOTH SWELLS WILL SLOWLY DECLINE DURING THE
WEEKEND.

SMALL CRAFT ADVISORY CRITERIA WINDS OF 25 KT OR GREATER ARE NOT
EXPECTED THROUGH THE HOLIDAY WEEKEND. HOWEVER...THE LONG PERIOD
EASTERLY AND SOUTHERLY SWELL MENTIONED ABOVE COULD BRING CONFUSED
SEAS TO AREAS EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...EATON







000
ATHW40 PHFO 291800
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1800 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1730 UTC AUGUST 29 2014

SKIES ARE PREDOMINANTLY CLEAR TO PARTLY CLOUDY ACROSS THE ALOHA
STATE THIS MORNING.  LOW CEILINGS ARE CONFINED TO THE NORTHERN...
WESTERN...AND EXTREME SOUTHERN PARTS OF THE BIG ISLAND.  LOW CLOUD
MOTION IS FROM THE EAST TO EAST-NORTHEAST AT 10 TO 15 MPH STATEWIDE.

BROKEN LOW CLOUDS EXIST SOUTH CLOCKWISE THROUGH WEST OF THE BIG
ISLAND...AND SOUTH AND SOUTHWEST OF MAUI COUNTY.  SCATTERED TO
OCCASIONALLY BROKEN LOWER CLOUDINESS IS NORTHEAST OF MAUI...AND
NORTH AND NORTHEAST OF THE BIG ISLAND.  CONDITIONS ARE OTHERWISE
CLEAR TO SCATTERED OVER THE ADJACENT COASTAL WATERS.

A WEAK SURFACE TROUGH IS APPROXIMATELY 225 MILES EAST-NORTHEAST OF
HILO AND HAS BEEN HEADING WEST AT 10 TO 15 MPH.  SHOWERY BROKEN LOW
CLOUDS ASSOCIATED WITH THE FEATURE ARE CURRENTLY LOCATED FROM 19N TO
22N BETWEEN 149.5W AND 151.5W.

IN THE UPPER AIR...AN EAST-TO-WEST ORIENTED TROUGH IS FAR NORTHWEST
OF KAUAI AND HAS BEEN NEARLY STATIONARY.  SHOWERS AND ISOLATED
THUNDERSTORMS BEING GENERATED BY THE SYSTEM HAVE BEEN FIRING FROM
26N TO 32N WEST OF 167W.  ANOTHER CLUSTER OF CONVECTION IS FOUND
FROM 27N TO 30N BETWEEN 162W AND 165W.

SHOWERS AND ISOLATED THUNDERSTORMS ALONG THE INTERTROPICAL
CONVERGENCE ZONE FAR SOUTH OF HAWAII HAVE BEEN WANING OVER THE PAST
SEVERAL HOURS.  THE ACTIVITY THAT REMAINS IS IN THE AREA FROM 06N TO
11N BETWEEN 143W AND 165W.

$$

KINEL





000
ATHW40 PHFO 291800
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1800 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1730 UTC AUGUST 29 2014

SKIES ARE PREDOMINANTLY CLEAR TO PARTLY CLOUDY ACROSS THE ALOHA
STATE THIS MORNING.  LOW CEILINGS ARE CONFINED TO THE NORTHERN...
WESTERN...AND EXTREME SOUTHERN PARTS OF THE BIG ISLAND.  LOW CLOUD
MOTION IS FROM THE EAST TO EAST-NORTHEAST AT 10 TO 15 MPH STATEWIDE.

BROKEN LOW CLOUDS EXIST SOUTH CLOCKWISE THROUGH WEST OF THE BIG
ISLAND...AND SOUTH AND SOUTHWEST OF MAUI COUNTY.  SCATTERED TO
OCCASIONALLY BROKEN LOWER CLOUDINESS IS NORTHEAST OF MAUI...AND
NORTH AND NORTHEAST OF THE BIG ISLAND.  CONDITIONS ARE OTHERWISE
CLEAR TO SCATTERED OVER THE ADJACENT COASTAL WATERS.

A WEAK SURFACE TROUGH IS APPROXIMATELY 225 MILES EAST-NORTHEAST OF
HILO AND HAS BEEN HEADING WEST AT 10 TO 15 MPH.  SHOWERY BROKEN LOW
CLOUDS ASSOCIATED WITH THE FEATURE ARE CURRENTLY LOCATED FROM 19N TO
22N BETWEEN 149.5W AND 151.5W.

IN THE UPPER AIR...AN EAST-TO-WEST ORIENTED TROUGH IS FAR NORTHWEST
OF KAUAI AND HAS BEEN NEARLY STATIONARY.  SHOWERS AND ISOLATED
THUNDERSTORMS BEING GENERATED BY THE SYSTEM HAVE BEEN FIRING FROM
26N TO 32N WEST OF 167W.  ANOTHER CLUSTER OF CONVECTION IS FOUND
FROM 27N TO 30N BETWEEN 162W AND 165W.

SHOWERS AND ISOLATED THUNDERSTORMS ALONG THE INTERTROPICAL
CONVERGENCE ZONE FAR SOUTH OF HAWAII HAVE BEEN WANING OVER THE PAST
SEVERAL HOURS.  THE ACTIVITY THAT REMAINS IS IN THE AREA FROM 06N TO
11N BETWEEN 143W AND 165W.

$$

KINEL






000
FXHW60 PHFO 291331
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST FRI AUG 29 2014

.SYNOPSIS...
THE TRADE WINDS WILL WEAKEN FURTHER...BECOMING LIGHT BY EARLY NEXT
WEEK. A TROUGH MOVING OVER THE SOUTHEAST HALF OF THE STATE MAY
INCREASE CLOUDS AND SHOWERS THROUGH ABOUT NOON TODAY. OVER THE
WEEKEND...SEA BREEZES WILL ENCOURAGE CLOUD BUILDUPS AND A FEW
SHOWERS IN ISLAND INTERIORS BY DAY...WHILE LAND BREEZES BRING
CLEARING AT NIGHT. THE TRADE WINDS MAY START TO RETURN BY THE MIDDLE
OF NEXT WEEK...THOUGH THEY WILL REMAIN ON THE LIGHT SIDE OF AVERAGE
FOR SOME TIME.

&&

.DISCUSSION...
SURFACE OBSERVATIONS AROUND THE MAIN HAWAIIAN ISLANDS REPORTED VERY
LIGHT TRADE WINDS. PRECIPITATION ACROSS THE STATE REMAINED SPARSE...
WITH INDIVIDUAL TOTALS ALSO DIMINISHING THROUGH THE NIGHT. SINCE THE
INVERSION STAYED HIGH...AND PRECIPITABLE WATER ADEQUATE...THESE DRY
CONDITIONS PROBABLY WERE SUPPORTED AT LEAST IN PART BY LAND BREEZES.

ALTHOUGH A MID-LEVEL RIDGE PREVAILED TO THE SOUTHEAST OF THE
ISLANDS...A BROAD TROUGH WAS PRESENT TO THE NORTHWEST THROUGH
NORTHEAST. MOST LIKELY IT WAS THIS FEATURE THAT ENCOURAGED ACTIVE
TOWERING CUMULI TO DEVELOP NEAR 30N.

SATELLITE ESTIMATES SHOWED A PLUME OF MOISTER AIR APPROACHING MAUI
COUNTY FROM THE EAST...AND THE CLOUD FEATURE ASSOCIATED WITH THIS
PLUME DEVELOPED CONSIDERABLY DURING THE PAST FEW HOURS. IN-STATION
ANALYSIS SUGGESTED THAT THIS FEATURE REMAINED A TROUGH RATHER THAN
A CLOSED LOW...AT LEAST NEAR THE SURFACE...BUT IN ANY CASE IT MAY
ENHANCE RAINFALL LATER TODAY AS IT MOVES ASHORE OVER MAUI AND HAWAII
COUNTIES. POPS AND ASSOCIATED FIELDS HAVE BEEN INCREASED ACCORDINGLY.

GUIDANCE PREDICTED ADDITIONAL MOISTURE SURGES TO REACH THE STATE
PERIODICALLY INTO NEXT WEEK...THOUGH WITH TIME THE DIFFERENT
SOLUTIONS ENDED UP FOLLOWING DIFFERENT PERIODS...COMPLICATING A
DETERMINISTIC FORECAST. WITH TRADE WINDS VERY WEAK BY MONDAY...
DIURNAL SHOWERS PRODUCED BY SEA BREEZES MAY DOMINATE WEATHER FROM
DAY TO DAY...WITH THE MOISTURE SURGES ONLY AMPLIFYING THE MAGNITUDE
OF THE DAILY EVENT.

IN ANY CASE...RIDGING ALOFT WILL EXPAND OVER THE ISLANDS FROM THE
SOUTHEAST DURING THE WEEKEND...SO BY NEXT WEEK SUBSIDENCE WILL START
TO CRUSH DOWN THE INVERSION. HOWEVER...A FRONT NORTH OF 30N WILL
KEEP THE SURFACE RIDGE ANCHORED NEAR THE ISLANDS WELL INTO NEXT
WEEK...SO THE TRADE WINDS WILL RECOVER ONLY VERY SLOWLY.

&&

.MARINE...
EASTERLY SWELL IS STILL FORECAST TO BUILD OVER THE HAWAIIAN COASTAL
WATERS TODAY...AND ADVISORY-LEVEL SURF ALSO WILL AFFECT SOUTH-FACING
SHORES. INTERACTION BETWEEN THE LONG-PERIOD EAST AND SOUTH SWELLS
MAY PRODUCE STRONG CURRENTS IN SOME AREAS. THE SURF FROM BOTH SWELLS
WILL DECLINE SLOWLY THROUGH THE WEEKEND.

WITH TRADE WIND SPEEDS MORE LIKELY TO DIMINISH THAN TO INCREASE
THROUGH THE FIRST HALF OF THE FORECAST PERIOD...IT IS DOUBTFUL THAT
THEY WILL APPROACH THE CRITERION FOR A SMALL CRAFT ADVISORY.
HOWEVER...THE LONG-PERIOD EASTERLY AND SOUTHERLY SWELL COULD PRODUCE
LOCALLY LARGE AND CONFUSED SEAS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

RYSHKO





000
FXHW60 PHFO 291331
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST FRI AUG 29 2014

.SYNOPSIS...
THE TRADE WINDS WILL WEAKEN FURTHER...BECOMING LIGHT BY EARLY NEXT
WEEK. A TROUGH MOVING OVER THE SOUTHEAST HALF OF THE STATE MAY
INCREASE CLOUDS AND SHOWERS THROUGH ABOUT NOON TODAY. OVER THE
WEEKEND...SEA BREEZES WILL ENCOURAGE CLOUD BUILDUPS AND A FEW
SHOWERS IN ISLAND INTERIORS BY DAY...WHILE LAND BREEZES BRING
CLEARING AT NIGHT. THE TRADE WINDS MAY START TO RETURN BY THE MIDDLE
OF NEXT WEEK...THOUGH THEY WILL REMAIN ON THE LIGHT SIDE OF AVERAGE
FOR SOME TIME.

&&

.DISCUSSION...
SURFACE OBSERVATIONS AROUND THE MAIN HAWAIIAN ISLANDS REPORTED VERY
LIGHT TRADE WINDS. PRECIPITATION ACROSS THE STATE REMAINED SPARSE...
WITH INDIVIDUAL TOTALS ALSO DIMINISHING THROUGH THE NIGHT. SINCE THE
INVERSION STAYED HIGH...AND PRECIPITABLE WATER ADEQUATE...THESE DRY
CONDITIONS PROBABLY WERE SUPPORTED AT LEAST IN PART BY LAND BREEZES.

ALTHOUGH A MID-LEVEL RIDGE PREVAILED TO THE SOUTHEAST OF THE
ISLANDS...A BROAD TROUGH WAS PRESENT TO THE NORTHWEST THROUGH
NORTHEAST. MOST LIKELY IT WAS THIS FEATURE THAT ENCOURAGED ACTIVE
TOWERING CUMULI TO DEVELOP NEAR 30N.

SATELLITE ESTIMATES SHOWED A PLUME OF MOISTER AIR APPROACHING MAUI
COUNTY FROM THE EAST...AND THE CLOUD FEATURE ASSOCIATED WITH THIS
PLUME DEVELOPED CONSIDERABLY DURING THE PAST FEW HOURS. IN-STATION
ANALYSIS SUGGESTED THAT THIS FEATURE REMAINED A TROUGH RATHER THAN
A CLOSED LOW...AT LEAST NEAR THE SURFACE...BUT IN ANY CASE IT MAY
ENHANCE RAINFALL LATER TODAY AS IT MOVES ASHORE OVER MAUI AND HAWAII
COUNTIES. POPS AND ASSOCIATED FIELDS HAVE BEEN INCREASED ACCORDINGLY.

GUIDANCE PREDICTED ADDITIONAL MOISTURE SURGES TO REACH THE STATE
PERIODICALLY INTO NEXT WEEK...THOUGH WITH TIME THE DIFFERENT
SOLUTIONS ENDED UP FOLLOWING DIFFERENT PERIODS...COMPLICATING A
DETERMINISTIC FORECAST. WITH TRADE WINDS VERY WEAK BY MONDAY...
DIURNAL SHOWERS PRODUCED BY SEA BREEZES MAY DOMINATE WEATHER FROM
DAY TO DAY...WITH THE MOISTURE SURGES ONLY AMPLIFYING THE MAGNITUDE
OF THE DAILY EVENT.

IN ANY CASE...RIDGING ALOFT WILL EXPAND OVER THE ISLANDS FROM THE
SOUTHEAST DURING THE WEEKEND...SO BY NEXT WEEK SUBSIDENCE WILL START
TO CRUSH DOWN THE INVERSION. HOWEVER...A FRONT NORTH OF 30N WILL
KEEP THE SURFACE RIDGE ANCHORED NEAR THE ISLANDS WELL INTO NEXT
WEEK...SO THE TRADE WINDS WILL RECOVER ONLY VERY SLOWLY.

&&

.MARINE...
EASTERLY SWELL IS STILL FORECAST TO BUILD OVER THE HAWAIIAN COASTAL
WATERS TODAY...AND ADVISORY-LEVEL SURF ALSO WILL AFFECT SOUTH-FACING
SHORES. INTERACTION BETWEEN THE LONG-PERIOD EAST AND SOUTH SWELLS
MAY PRODUCE STRONG CURRENTS IN SOME AREAS. THE SURF FROM BOTH SWELLS
WILL DECLINE SLOWLY THROUGH THE WEEKEND.

WITH TRADE WIND SPEEDS MORE LIKELY TO DIMINISH THAN TO INCREASE
THROUGH THE FIRST HALF OF THE FORECAST PERIOD...IT IS DOUBTFUL THAT
THEY WILL APPROACH THE CRITERION FOR A SMALL CRAFT ADVISORY.
HOWEVER...THE LONG-PERIOD EASTERLY AND SOUTHERLY SWELL COULD PRODUCE
LOCALLY LARGE AND CONFUSED SEAS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

RYSHKO






000
ATHW40 PHFO 291245
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1200 UTC AUGUST 29 2014

THE MOST NOTICEABLE LOW LEVEL WEATHER FEATURE IN THE CENTRAL NORTH
PACIFIC REMAINS 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
31N148W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 22N152W.

CLOUD COVER ACROSS WATERS ADJACENT TO THE MAIN HAWAIIAN ISLANDS EAST
OF OAHU HAS INCREASED SINCE LAST EVENING...WITH BROKEN TO OVERCAST
LOW CLOUDS NOTED ACROSS LEEWARD WATERS FROM MOLOKAI TO SOUTH OF THE
BIG ISLAND. WINDWARD WATERS WEST OF MOLOKAI HAVE BROKEN LOW CLOUDS.
SCATTERED LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LOCAL WATERS
FARTHER TO THE WEST. IN CONTRAST...LAND AREAS ARE CLEARER THAN THEY
WERE LAST EVENING...ESPECIALLY ACROSS THE SMALLER ISLANDS. SCATTERED
LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LAND FROM KAUAI THROUGH
MAUI. OVERCAST LOW CLOUDS CONTINUE TO AFFECT KONA AND KAU SHORES AND
SLOPES OF THE BIG ISLAND...WHILE WINDWARD AREAS OF THE BIG ISLAND
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









000
ATHW40 PHFO 291245
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1200 UTC AUGUST 29 2014

THE MOST NOTICEABLE LOW LEVEL WEATHER FEATURE IN THE CENTRAL NORTH
PACIFIC REMAINS 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
31N148W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 22N152W.

CLOUD COVER ACROSS WATERS ADJACENT TO THE MAIN HAWAIIAN ISLANDS EAST
OF OAHU HAS INCREASED SINCE LAST EVENING...WITH BROKEN TO OVERCAST
LOW CLOUDS NOTED ACROSS LEEWARD WATERS FROM MOLOKAI TO SOUTH OF THE
BIG ISLAND. WINDWARD WATERS WEST OF MOLOKAI HAVE BROKEN LOW CLOUDS.
SCATTERED LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LOCAL WATERS
FARTHER TO THE WEST. IN CONTRAST...LAND AREAS ARE CLEARER THAN THEY
WERE LAST EVENING...ESPECIALLY ACROSS THE SMALLER ISLANDS. SCATTERED
LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LAND FROM KAUAI THROUGH
MAUI. OVERCAST LOW CLOUDS CONTINUE TO AFFECT KONA AND KAU SHORES AND
SLOPES OF THE BIG ISLAND...WHILE WINDWARD AREAS OF THE BIG ISLAND
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









000
ATHW40 PHFO 291245
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1200 UTC AUGUST 29 2014

THE MOST NOTICEABLE LOW LEVEL WEATHER FEATURE IN THE CENTRAL NORTH
PACIFIC REMAINS 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
31N148W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 22N152W.

CLOUD COVER ACROSS WATERS ADJACENT TO THE MAIN HAWAIIAN ISLANDS EAST
OF OAHU HAS INCREASED SINCE LAST EVENING...WITH BROKEN TO OVERCAST
LOW CLOUDS NOTED ACROSS LEEWARD WATERS FROM MOLOKAI TO SOUTH OF THE
BIG ISLAND. WINDWARD WATERS WEST OF MOLOKAI HAVE BROKEN LOW CLOUDS.
SCATTERED LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LOCAL WATERS
FARTHER TO THE WEST. IN CONTRAST...LAND AREAS ARE CLEARER THAN THEY
WERE LAST EVENING...ESPECIALLY ACROSS THE SMALLER ISLANDS. SCATTERED
LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LAND FROM KAUAI THROUGH
MAUI. OVERCAST LOW CLOUDS CONTINUE TO AFFECT KONA AND KAU SHORES AND
SLOPES OF THE BIG ISLAND...WHILE WINDWARD AREAS OF THE BIG ISLAND
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









000
ATHW40 PHFO 291245
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC FRI AUG 29 2014

BASED ON DATA THROUGH 1200 UTC AUGUST 29 2014

THE MOST NOTICEABLE LOW LEVEL WEATHER FEATURE IN THE CENTRAL NORTH
PACIFIC REMAINS 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
31N148W...IS THE REMNANT CIRCULATION OF TROPICAL DEPRESSION LOWELL
AND CONSISTS OF BROKEN STABLE LOW CLOUDS. A SECOND SWIRL OF LOW
CLOUDS IS NOTED NEAR 22N152W.

CLOUD COVER ACROSS WATERS ADJACENT TO THE MAIN HAWAIIAN ISLANDS EAST
OF OAHU HAS INCREASED SINCE LAST EVENING...WITH BROKEN TO OVERCAST
LOW CLOUDS NOTED ACROSS LEEWARD WATERS FROM MOLOKAI TO SOUTH OF THE
BIG ISLAND. WINDWARD WATERS WEST OF MOLOKAI HAVE BROKEN LOW CLOUDS.
SCATTERED LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LOCAL WATERS
FARTHER TO THE WEST. IN CONTRAST...LAND AREAS ARE CLEARER THAN THEY
WERE LAST EVENING...ESPECIALLY ACROSS THE SMALLER ISLANDS. SCATTERED
LOW CLOUDS TO CLEAR SKIES ARE NOTED OVER LAND FROM KAUAI THROUGH
MAUI. OVERCAST LOW CLOUDS CONTINUE TO AFFECT KONA AND KAU SHORES AND
SLOPES OF THE BIG ISLAND...WHILE WINDWARD AREAS OF THE BIG ISLAND
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









000
FXHW60 PHFO 290612
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN...BECOMING LIGHT BY EARLY NEXT WEEK. LAND
BREEZES WILL ENCOURAGE CLOUD BUILDUPS AND A FEW SHOWERS IN ISLAND
INTERIORS BY DAY...WHILE LAND BREEZES WILL PRODUCE CLEARING AT
NIGHT. THE TRADE WINDS MAY START TO RETURN BY THE MIDDLE OF NEXT
WEEK...THOUGH THEY WILL REMAIN ON THE LIGHT SIDE OF AVERAGE.

&&

.DISCUSSION...
SURFACE OBSERVATIONS AROUND THE MAIN HAWAIIAN ISLANDS REPORTED TRADE
WIND SPEEDS ON THE LIGHT SIDE OF AVERAGE...THOUGH STILL NOT QUITE AS
LIGHT AS GUIDANCE SUGGESTED EARLIER. THE GENERAL TREND TOWARD LOWER
SPEEDS DID APPEAR TO HOLD...THOUGH THE FORECAST MAY NEED A BIT OF
NUDGE UPWARD IF IT OUTPACES REALITY THROUGH TOO MUCH OF THE NIGHT.

PRECIPITATION ACROSS THE STATE WAS SPARSE...OR AT LEAST MOSTLY
MISSING THE RAIN GAUGES...BUT WHERE THEY DID OCCUR SOME OF THE
SHOWERS DROPPED OVER ONE QUARTER OF AN INCH IN THREE HOURS. ALTHOUGH
A MID-LEVEL RIDGE PREVAILED TO THE SOUTHEAST OF THE ISLANDS...A
BROAD TROUGH WAS PRESENT TO THE NORTHWEST THROUGH NORTHEAST. MOST
LIKELY IT WAS THIS FEATURE THAT ENCOURAGED ACTIVE TOWERING CUMULI TO
DEVELOP NEAR 30N...AND CONTRIBUTED TO SHOWER DEVELOPMENT HERE BY
RAISING THE INVERSION. ALSO...THOUGH PRECIPITABLE WATER OVER THE
STATE AND VICINITY WAS ON THE DRY SIDE OF AVERAGE...SATELLITE
ESTIMATES SHOWED A MOISTER PLUME APPROACHING MAUI COUNTY FROM THE
EAST. GUIDANCE PREDICTED SIMILAR MOISTURE SURGES TO REACH THE STATE
PERIODICALLY INTO NEXT WEEK...THOUGH WITH TIME THE DIFFERENT
SOLUTIONS ENDED UP FOLLOWING DIFFERENT PERIODS...COMPLICATING A
DETERMINISTIC FORECAST. WITH TRADE WINDS VERY WEAK BY MONDAY...
DIURNAL SHOWERS PRODUCED BY SEA BREEZES MAY DOMINATE WEATHER FROM
DAY TO DAY...WITH THE MOISTURE SURGES ONLY AMPLIFYING THE MAGNITUDE
OF THE DAILY EVENT.

IN ANY CASE...RIDGING ALOFT WILL EXPAND OVER THE ISLANDS FROM THE
SOUTHEAST DURING THE WEEKEND...SO BY NEXT WEEK SUBSIDENCE WILL START
TO CRUSH DOWN THE INVERSION. HOWEVER...A FRONT NORTH OF 30N WILL
KEEP THE SURFACE RIDGE ANCHORED NEAR THE ISLANDS WELL INTO NEXT
WEEK...SO THE TRADE WINDS WILL RECOVER ONLY VERY SLOWLY.

&&

.MARINE...
EASTERLY SWELL IS STILL FORECAST TO BUILD OVER THE HAWAIIAN COASTAL
WATERS TONIGHT AND FRIDAY...BUT CONFIDENCE REGARDING THE RESULTING
SURF HEIGHTS ALONG EAST-FACING SHORES WAS LOWER THAN EARLIER.
ADVISORY-LEVEL SURF ALSO WILL AFFECT SOUTH-FACING SHORES THROUGH
FRIDAY. INTERACTION BETWEEN THE LONG-PERIOD EAST AND SOUTH SWELLS
MAY PRODUCE STRONG CURRENTS IN SOME AREAS. THE SURF FROM BOTH SWELLS
WILL DECLINE SLOWLY THROUGH THE WEEKEND.

WITH TRADE WIND SPEEDS MORE LIKELY TO DIMINISH THAN TO INCREASE
THROUGH THE FIRST HALF OF THE FORECAST PERIOD...IT IS DOUBTFUL THAT
THEY WILL APPROACH THE CRITERION FOR A SMALL CRAFT ADVISORY.
HOWEVER...THE LONG-PERIOD EASTERLY AND SOUTHERLY SWELL COULD PRODUCE
LOCALLY LARGE AND CONFUSED SEAS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

RYSHKO





000
FXHW60 PHFO 290612
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN...BECOMING LIGHT BY EARLY NEXT WEEK. LAND
BREEZES WILL ENCOURAGE CLOUD BUILDUPS AND A FEW SHOWERS IN ISLAND
INTERIORS BY DAY...WHILE LAND BREEZES WILL PRODUCE CLEARING AT
NIGHT. THE TRADE WINDS MAY START TO RETURN BY THE MIDDLE OF NEXT
WEEK...THOUGH THEY WILL REMAIN ON THE LIGHT SIDE OF AVERAGE.

&&

.DISCUSSION...
SURFACE OBSERVATIONS AROUND THE MAIN HAWAIIAN ISLANDS REPORTED TRADE
WIND SPEEDS ON THE LIGHT SIDE OF AVERAGE...THOUGH STILL NOT QUITE AS
LIGHT AS GUIDANCE SUGGESTED EARLIER. THE GENERAL TREND TOWARD LOWER
SPEEDS DID APPEAR TO HOLD...THOUGH THE FORECAST MAY NEED A BIT OF
NUDGE UPWARD IF IT OUTPACES REALITY THROUGH TOO MUCH OF THE NIGHT.

PRECIPITATION ACROSS THE STATE WAS SPARSE...OR AT LEAST MOSTLY
MISSING THE RAIN GAUGES...BUT WHERE THEY DID OCCUR SOME OF THE
SHOWERS DROPPED OVER ONE QUARTER OF AN INCH IN THREE HOURS. ALTHOUGH
A MID-LEVEL RIDGE PREVAILED TO THE SOUTHEAST OF THE ISLANDS...A
BROAD TROUGH WAS PRESENT TO THE NORTHWEST THROUGH NORTHEAST. MOST
LIKELY IT WAS THIS FEATURE THAT ENCOURAGED ACTIVE TOWERING CUMULI TO
DEVELOP NEAR 30N...AND CONTRIBUTED TO SHOWER DEVELOPMENT HERE BY
RAISING THE INVERSION. ALSO...THOUGH PRECIPITABLE WATER OVER THE
STATE AND VICINITY WAS ON THE DRY SIDE OF AVERAGE...SATELLITE
ESTIMATES SHOWED A MOISTER PLUME APPROACHING MAUI COUNTY FROM THE
EAST. GUIDANCE PREDICTED SIMILAR MOISTURE SURGES TO REACH THE STATE
PERIODICALLY INTO NEXT WEEK...THOUGH WITH TIME THE DIFFERENT
SOLUTIONS ENDED UP FOLLOWING DIFFERENT PERIODS...COMPLICATING A
DETERMINISTIC FORECAST. WITH TRADE WINDS VERY WEAK BY MONDAY...
DIURNAL SHOWERS PRODUCED BY SEA BREEZES MAY DOMINATE WEATHER FROM
DAY TO DAY...WITH THE MOISTURE SURGES ONLY AMPLIFYING THE MAGNITUDE
OF THE DAILY EVENT.

IN ANY CASE...RIDGING ALOFT WILL EXPAND OVER THE ISLANDS FROM THE
SOUTHEAST DURING THE WEEKEND...SO BY NEXT WEEK SUBSIDENCE WILL START
TO CRUSH DOWN THE INVERSION. HOWEVER...A FRONT NORTH OF 30N WILL
KEEP THE SURFACE RIDGE ANCHORED NEAR THE ISLANDS WELL INTO NEXT
WEEK...SO THE TRADE WINDS WILL RECOVER ONLY VERY SLOWLY.

&&

.MARINE...
EASTERLY SWELL IS STILL FORECAST TO BUILD OVER THE HAWAIIAN COASTAL
WATERS TONIGHT AND FRIDAY...BUT CONFIDENCE REGARDING THE RESULTING
SURF HEIGHTS ALONG EAST-FACING SHORES WAS LOWER THAN EARLIER.
ADVISORY-LEVEL SURF ALSO WILL AFFECT SOUTH-FACING SHORES THROUGH
FRIDAY. INTERACTION BETWEEN THE LONG-PERIOD EAST AND SOUTH SWELLS
MAY PRODUCE STRONG CURRENTS IN SOME AREAS. THE SURF FROM BOTH SWELLS
WILL DECLINE SLOWLY THROUGH THE WEEKEND.

WITH TRADE WIND SPEEDS MORE LIKELY TO DIMINISH THAN TO INCREASE
THROUGH THE FIRST HALF OF THE FORECAST PERIOD...IT IS DOUBTFUL THAT
THEY WILL APPROACH THE CRITERION FOR A SMALL CRAFT ADVISORY.
HOWEVER...THE LONG-PERIOD EASTERLY AND SOUTHERLY SWELL COULD PRODUCE
LOCALLY LARGE AND CONFUSED SEAS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

RYSHKO






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








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







000
FXHW60 PHFO 290139
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
339 PM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN TONIGHT...THEN BECOME LIGHT FROM FRIDAY
THROUGH THE WEEKEND AND INTO EARLY NEXT WEEK. THIS WILL ALLOW
WIDESPREAD AFTERNOON SEA BREEZES AND NIGHTTIME LAND BREEZES TO
DEVELOP OVER LEEWARD AND INTERIOR AREAS. AFTERNOON AND EARLY
EVENING CLOUDS AND SHOWERS WILL DEVELOP OVER LEEWARD AND INTERIOR
SECTIONS...FOLLOWED BY NIGHTTIME CLEARING...WHILE PASSING SHOWERS
WILL AFFECT THE WINDWARD AREAS AT TIMES. STRONGER TRADE WINDS MAY
RETURN BY THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT ISOLATED RAIN SHOWERS ACROSS THE WINDWARD
COASTAL WATERS...WHILE RAIN GAUGES HAVE MEASURED JUST LIGHT
ACCUMULATIONS ACROSS A FEW WINDWARD AREAS DURING THE PAST SEVERAL
HOURS. A SMALL AREA OF MORE PERSISTENT AND HEAVIER SHOWERS HAS
DEVELOPED RECENTLY ALONG THE KAU COAST OF THE BIG ISLAND. NO
SHOWERS HAVE BEEN OBSERVED ACROSS LEEWARD AREAS THUS FAR...AS THE
TRADES HAVE REMAINED STRONGER THAN EARLIER EXPECTED AND HAVE
LARGELY PREVENTED SEABREEZE DEVELOPMENT OUTSIDE OF THE MOST
SHELTERED AREAS. SURFACE ANALYSIS SHOWS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO THE NORTH OF THE STATE ALONG 40N...WITH THE REMNANT
LOW OF FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 31N 144W.
THE 00Z SOUNDINGS AND RECENT 88D VWP DATA INDICATE THAT MODERATE
AND SLIGHTLY BACKED TRADE FLOW OF AROUND 15 KNOTS CONTINUES IN THE
LOW LEVELS. THE SOUNDINGS SHOW RATHER HIGH INVERSIONS BASED NEAR
9000 FEET...AND PWATS OF 1.15 TO 1.25 INCHES (AROUND THE 25TH
PERCENTILE FOR THIS TIME OF YEAR)...WHILE MIMIC-TPW SATELLITE
IMAGERY DEPICTS A SMALL POCKET OF SOMEWHAT HIGHER PWATS AROUND 1.5
INCHES APPROACHING MAUI COUNTY. RELATIVELY STABLE CONDITIONS ARE
IN PLACE...WITH A MID/UPPER LEVEL RIDGE CENTERED TO THE SOUTH OF
HAWAII EXERTING ITS INFLUENCE OVER THE STATE.

AS MENTIONED ABOVE...THE TRADES REMAINED STRONGER THAN EXPECTED
TODAY...AND WOULD ANTICIPATE MODERATE TRADES TO PERSIST THROUGH
MOST OF TONIGHT. A TYPICAL TRADE WIND WEATHER PATTERN SHOULD
RESULT...WITH PASSING SHOWERS FOCUSING MAINLY ON WINDWARD SLOPES.
SCATTERED SHOWERS WILL BE POSSIBLE THROUGH MID EVENING ON THE KONA
COAST OF THE BIG ISLAND AS WELL.

FROM FRIDAY THROUGH THE WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
WEAKEN...DUE TO A COMBINATION OF A PAIR OF REMNANT LOWS MOVING
SLOWLY WESTWARD ALONG 30N (FORMER EAST PACIFIC TROPICAL CYCLONES
LOWELL AND MARIE) AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD
FROM THE INTERNATIONAL DATELINE. THIS SYNOPTIC REGIME WILL ALLOW
FOR LIGHT TRADE WINDS TO PREVAIL ACROSS THE STATE...WITH A
CONVECTIVE SEABREEZE PATTERN LIKELY TO DEVELOP ACROSS INTERIOR AND
LEEWARD AREAS EACH AFTERNOON. WOULD EXPECT CLOUDS AND SCATTERED
SHOWERS ACROSS INTERIOR/LEEWARD IN THE AFTERNOONS AND EARLY
EVENINGS...WITH SOME CLOUDS AND PASSING SHOWERS STILL REMAINING
OVER WINDWARD AREAS AS WELL. LAND BREEZES SHOULD CLEAR OUT THE
REMAINDER OF THE SMALLER ISLANDS DURING THE NIGHTTIME HOURS.
NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY STABLE
REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF AREAS OF
SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH
THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE
POSSIBLE EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE MOST
LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE INTO
EARLY NEXT WEEK...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH...WITH A WEAK REMNANT LOW MOVING SLOWLY
WESTWARD BETWEEN THE RIDGE AND HAWAII. WOULD EXPECT A CONTINUED
SEABREEZE/LAND BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS...
WITH SOME CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. TRADES
MAY INCREASE TO MODERATE LEVELS TOWARD THE MIDDLE AND LATER PART
OF NEXT WEEK...WHICH WOULD BRING A RETURN TO TYPICAL TRADE WIND
WEATHER ACROSS THE STATE.

&&

.AVIATION...
A RELATIVELY DRY AND STABLE AIRMASS CONTINUES OVER THE ISLANDS
SHOULD CONTINUE VFR CONDITIONS OVERNIGHT AND INTO FRIDAY. LIGHT
TRADE WINDS MAY ALLOW FOR SOME LOCAL SEA BREEZES FRIDAY
AFTERNOON...WHICH COULD BRING A FEW CLOUDS OVER THE INTERIOR OF THE
ISLANDS AT THAT TIME. OTHERWISE...EXPECT A FEW CLOUDS OVER THE
WINDWARD AND MOUNTAIN AREAS. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
LATEST DATA FROM THE NEAR SHORE BUOYS JUST EAST OF OAHU AND NORTH
OF MAUI CONTINUES TO SHOW LITTLE TO NO SIGN OF THE ANTICIPATED
LONG PERIOD EASTERLY SWELL...WHICH ORIGINATED FROM FORMER EAST
PACIFIC HURRICANE MARIE. HOWEVER...LONG PERIOD SWELL ENERGY HAS
CONTINUED TO INCREASE AT BUOY 51004...LOCATED 205 NM SE OF HILO.
THE NORTH PACIFIC HURRICANE VERSION OF THE WAVEWATCH MODEL HAS
BACKED OFF FROM EARLIER RUNS ON THE PEAK HEIGHT OF THIS SWELL
OVERNIGHT INTO FRIDAY. THIS SWELL IS STILL FORECAST TO BUILD INTO
THE HAWAIIAN COASTAL WATERS TONIGHT AND FRIDAY...BUT CONFIDENCE
REGARDING THE RESULTING SURF HEIGHTS ON EAST FACING SHORES HAS
LESSENED SOMEWHAT. STILL...WILL MAINTAIN THE EXISTING ADVISORY...
AS WE AWAIT THE ARRIVAL OF THE EAST SWELL INTO OUR OFFSHORE AND
NEARSHORE WATERS.

LATEST DATA FROM THE NEAR SHORE BUOY JUST SOUTHWEST OF OAHU
INDICATE THAT THE EXPECTED SOUTH SWELL IS IN PROGRESS...AND DAYTIME
SURF OBS FROM THE OAHU SOUTH SHORE DO INDICATE ELEVATED SURF NEAR
ADVISORY LEVELS. THIS SWELL IS FORECAST TO BUILD A BIT MORE INTO
TONIGHT...WITH ADVISORY LEVEL SURF EXPECTED ALONG SOUTH FACING
SHORES THROUGH FRIDAY. STRONG CURRENTS WILL DEVELOP IN SOME AREAS
DUE THE INTERACTION BETWEEN THE LONG PERIOD EAST AND SOUTH SWELLS.
THE SURF FROM BOTH SWELLS WILL SLOWLY DECLINE DURING THE WEEKEND.

AS TRADE WINDS DIMINISH...SMALL CRAFT ADVISORY CRITERIA WINDS OF
25 KT OR GREATER ARE NOT EXPECTED THROUGH THE REST OF THIS WEEK
AND THE HOLIDAY WEEKEND. HOWEVER...THE LONG PERIOD EASTERLY AND
SOUTHERLY SWELL MENTIONED ABOVE COULD BRING CONFUSED SEAS TO AREAS
EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...M BALLARD






000
FXHW60 PHFO 290139
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
339 PM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN TONIGHT...THEN BECOME LIGHT FROM FRIDAY
THROUGH THE WEEKEND AND INTO EARLY NEXT WEEK. THIS WILL ALLOW
WIDESPREAD AFTERNOON SEA BREEZES AND NIGHTTIME LAND BREEZES TO
DEVELOP OVER LEEWARD AND INTERIOR AREAS. AFTERNOON AND EARLY
EVENING CLOUDS AND SHOWERS WILL DEVELOP OVER LEEWARD AND INTERIOR
SECTIONS...FOLLOWED BY NIGHTTIME CLEARING...WHILE PASSING SHOWERS
WILL AFFECT THE WINDWARD AREAS AT TIMES. STRONGER TRADE WINDS MAY
RETURN BY THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT ISOLATED RAIN SHOWERS ACROSS THE WINDWARD
COASTAL WATERS...WHILE RAIN GAUGES HAVE MEASURED JUST LIGHT
ACCUMULATIONS ACROSS A FEW WINDWARD AREAS DURING THE PAST SEVERAL
HOURS. A SMALL AREA OF MORE PERSISTENT AND HEAVIER SHOWERS HAS
DEVELOPED RECENTLY ALONG THE KAU COAST OF THE BIG ISLAND. NO
SHOWERS HAVE BEEN OBSERVED ACROSS LEEWARD AREAS THUS FAR...AS THE
TRADES HAVE REMAINED STRONGER THAN EARLIER EXPECTED AND HAVE
LARGELY PREVENTED SEABREEZE DEVELOPMENT OUTSIDE OF THE MOST
SHELTERED AREAS. SURFACE ANALYSIS SHOWS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO THE NORTH OF THE STATE ALONG 40N...WITH THE REMNANT
LOW OF FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 31N 144W.
THE 00Z SOUNDINGS AND RECENT 88D VWP DATA INDICATE THAT MODERATE
AND SLIGHTLY BACKED TRADE FLOW OF AROUND 15 KNOTS CONTINUES IN THE
LOW LEVELS. THE SOUNDINGS SHOW RATHER HIGH INVERSIONS BASED NEAR
9000 FEET...AND PWATS OF 1.15 TO 1.25 INCHES (AROUND THE 25TH
PERCENTILE FOR THIS TIME OF YEAR)...WHILE MIMIC-TPW SATELLITE
IMAGERY DEPICTS A SMALL POCKET OF SOMEWHAT HIGHER PWATS AROUND 1.5
INCHES APPROACHING MAUI COUNTY. RELATIVELY STABLE CONDITIONS ARE
IN PLACE...WITH A MID/UPPER LEVEL RIDGE CENTERED TO THE SOUTH OF
HAWAII EXERTING ITS INFLUENCE OVER THE STATE.

AS MENTIONED ABOVE...THE TRADES REMAINED STRONGER THAN EXPECTED
TODAY...AND WOULD ANTICIPATE MODERATE TRADES TO PERSIST THROUGH
MOST OF TONIGHT. A TYPICAL TRADE WIND WEATHER PATTERN SHOULD
RESULT...WITH PASSING SHOWERS FOCUSING MAINLY ON WINDWARD SLOPES.
SCATTERED SHOWERS WILL BE POSSIBLE THROUGH MID EVENING ON THE KONA
COAST OF THE BIG ISLAND AS WELL.

FROM FRIDAY THROUGH THE WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
WEAKEN...DUE TO A COMBINATION OF A PAIR OF REMNANT LOWS MOVING
SLOWLY WESTWARD ALONG 30N (FORMER EAST PACIFIC TROPICAL CYCLONES
LOWELL AND MARIE) AND A WEAK COLD FRONT MOVING SLOWLY EASTWARD
FROM THE INTERNATIONAL DATELINE. THIS SYNOPTIC REGIME WILL ALLOW
FOR LIGHT TRADE WINDS TO PREVAIL ACROSS THE STATE...WITH A
CONVECTIVE SEABREEZE PATTERN LIKELY TO DEVELOP ACROSS INTERIOR AND
LEEWARD AREAS EACH AFTERNOON. WOULD EXPECT CLOUDS AND SCATTERED
SHOWERS ACROSS INTERIOR/LEEWARD IN THE AFTERNOONS AND EARLY
EVENINGS...WITH SOME CLOUDS AND PASSING SHOWERS STILL REMAINING
OVER WINDWARD AREAS AS WELL. LAND BREEZES SHOULD CLEAR OUT THE
REMAINDER OF THE SMALLER ISLANDS DURING THE NIGHTTIME HOURS.
NEARBY MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY STABLE
REGIME OVER HAWAII...BUT THERE WILL BE A COUPLE OF AREAS OF
SOMEWHAT HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH
THE STATE DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE
POSSIBLE EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE MOST
LIKELY TO DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE INTO
EARLY NEXT WEEK...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH...WITH A WEAK REMNANT LOW MOVING SLOWLY
WESTWARD BETWEEN THE RIDGE AND HAWAII. WOULD EXPECT A CONTINUED
SEABREEZE/LAND BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS...
WITH SOME CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. TRADES
MAY INCREASE TO MODERATE LEVELS TOWARD THE MIDDLE AND LATER PART
OF NEXT WEEK...WHICH WOULD BRING A RETURN TO TYPICAL TRADE WIND
WEATHER ACROSS THE STATE.

&&

.AVIATION...
A RELATIVELY DRY AND STABLE AIRMASS CONTINUES OVER THE ISLANDS
SHOULD CONTINUE VFR CONDITIONS OVERNIGHT AND INTO FRIDAY. LIGHT
TRADE WINDS MAY ALLOW FOR SOME LOCAL SEA BREEZES FRIDAY
AFTERNOON...WHICH COULD BRING A FEW CLOUDS OVER THE INTERIOR OF THE
ISLANDS AT THAT TIME. OTHERWISE...EXPECT A FEW CLOUDS OVER THE
WINDWARD AND MOUNTAIN AREAS. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
LATEST DATA FROM THE NEAR SHORE BUOYS JUST EAST OF OAHU AND NORTH
OF MAUI CONTINUES TO SHOW LITTLE TO NO SIGN OF THE ANTICIPATED
LONG PERIOD EASTERLY SWELL...WHICH ORIGINATED FROM FORMER EAST
PACIFIC HURRICANE MARIE. HOWEVER...LONG PERIOD SWELL ENERGY HAS
CONTINUED TO INCREASE AT BUOY 51004...LOCATED 205 NM SE OF HILO.
THE NORTH PACIFIC HURRICANE VERSION OF THE WAVEWATCH MODEL HAS
BACKED OFF FROM EARLIER RUNS ON THE PEAK HEIGHT OF THIS SWELL
OVERNIGHT INTO FRIDAY. THIS SWELL IS STILL FORECAST TO BUILD INTO
THE HAWAIIAN COASTAL WATERS TONIGHT AND FRIDAY...BUT CONFIDENCE
REGARDING THE RESULTING SURF HEIGHTS ON EAST FACING SHORES HAS
LESSENED SOMEWHAT. STILL...WILL MAINTAIN THE EXISTING ADVISORY...
AS WE AWAIT THE ARRIVAL OF THE EAST SWELL INTO OUR OFFSHORE AND
NEARSHORE WATERS.

LATEST DATA FROM THE NEAR SHORE BUOY JUST SOUTHWEST OF OAHU
INDICATE THAT THE EXPECTED SOUTH SWELL IS IN PROGRESS...AND DAYTIME
SURF OBS FROM THE OAHU SOUTH SHORE DO INDICATE ELEVATED SURF NEAR
ADVISORY LEVELS. THIS SWELL IS FORECAST TO BUILD A BIT MORE INTO
TONIGHT...WITH ADVISORY LEVEL SURF EXPECTED ALONG SOUTH FACING
SHORES THROUGH FRIDAY. STRONG CURRENTS WILL DEVELOP IN SOME AREAS
DUE THE INTERACTION BETWEEN THE LONG PERIOD EAST AND SOUTH SWELLS.
THE SURF FROM BOTH SWELLS WILL SLOWLY DECLINE DURING THE WEEKEND.

AS TRADE WINDS DIMINISH...SMALL CRAFT ADVISORY CRITERIA WINDS OF
25 KT OR GREATER ARE NOT EXPECTED THROUGH THE REST OF THIS WEEK
AND THE HOLIDAY WEEKEND. HOWEVER...THE LONG PERIOD EASTERLY AND
SOUTHERLY SWELL MENTIONED ABOVE COULD BRING CONFUSED SEAS TO AREAS
EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...M BALLARD







000
FXHW60 PHFO 281949
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
949 AM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN TODAY...WITH LOCAL SEA BREEZES DEVELOPING
THIS AFTERNOON. TRADES WILL BECOME LIGHT FROM FRIDAY THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK...ALLOWING MORE WIDESPREAD
AFTERNOON SEA BREEZES AND NIGHTTIME LAND BREEZES TO DEVELOP OVER
LEEWARD AND INTERIOR AREAS. AFTERNOON AND EVENING CLOUDS AND
SHOWERS WILL DEVELOP OVER LEEWARD AND INTERIOR SECTIONS...FOLLOWED
BY NIGHTTIME CLEARING...WHILE PASSING LOW CLOUDS WILL AFFECT THE
WINDWARD AREAS AT TIMES. STRONGER TRADE WINDS MAY RETURN BY THE
MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT WIDELY SCATTERED RAIN SHOWERS ACROSS THE
WINDWARD COASTAL WATERS...WHILE RAIN GAUGES HAVE MEASURED JUST
LIGHT ACCUMULATIONS ACROSS SOME WINDWARD AREAS DURING THE PAST
SEVERAL HOURS. SURFACE ANALYSIS SHOWS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO THE NORTH OF THE STATE ALONG 40N...WITH A REMNANT LOW
FROM FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 31N 143W.
TRADES ARE BEGINNING TO WEAKEN ACROSS THE STATE...ALTHOUGH THE 12Z
LIHUE SOUNDING AND MORE RECENT 88D VWP DATA STILL SHOW TRADE WINDS
AROUND 15 KNOTS IN THE LOW LEVELS. THE SOUNDINGS SHOW NEAR TO
SLIGHTLY BELOW PWATS OF 1.2 TO 1.3 INCHES IN PLACE...WHILE MIMIC-
TPW SATELLITE IMAGERY DEPICTS A POCKET OF SOMEWHAT HIGHER PWATS
AROUND 1.5 INCHES APPROACHING THE STATE FROM THE NORTHEAST.
RELATIVELY STABLE CONDITIONS ARE IN PLACE...WITH A MID/UPPER LEVEL
RIDGE CENTERED TO THE SOUTH OF HAWAII EXERTING ITS INFLUENCE OVER
THE STATE.

THROUGH THE REST OF TODAY...IT APPEARS THAT TRADES WILL BE WEAK
ENOUGH TO ALLOW FOR SEABREEZES TO DEVELOP ACROSS SOME LEEWARD
AREAS...BUT STRONG ENOUGH TO PREVENT A COMPLETE SWITCHOVER TO
A CONVECTIVE PATTERN. WOULD EXPECT A HYBRID PATTERN WITH SOME
PASSING SHOWERS CONTINUING WINDWARD...AND WIDELY SCATTERED SHOWERS
DEVELOPING LEEWARD/INTERIOR DURING THE AFTERNOON. WILL UPDATE THE
FORECAST SHORTLY TO TWEAK POPS AND SKY COVER.

FROM FRIDAY THROUGH THE WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN WEAKER THAN NORMAL...DUE TO A COMBINATION OF A PAIR OF
REMNANT LOWS MOVING SLOWLY WESTWARD ALONG 30N (FORMER EAST
PACIFIC TROPICAL CYCLONES LOWELL AND MARIE) AND A WEAK COLD FRONT
MOVING SLOWLY EASTWARD FROM THE INTERNATIONAL DATELINE. THIS
SYNOPTIC REGIME WILL ALLOW FOR LIGHT TRADE WINDS TO PREVAIL ACROSS
THE STATE...WITH A CONVECTIVE SEABREEZE PATTERN LIKELY TO DEVELOP
ACROSS INTERIOR AND LEEWARD AREAS EACH AFTERNOON. WOULD EXPECT
CLOUDS AND SCATTERED SHOWERS ACROSS INTERIOR/LEEWARD IN THE
AFTERNOONS AND EARLY EVENINGS...WITH SOME CLOUDS AND PASSING
SHOWERS STILL REMAINING OVER WINDWARD AREAS AS WELL. LAND BREEZES
SHOULD CLEAR OUT THE REMAINDER OF THE SMALLER ISLANDS DURING THE
NIGHTTIME HOURS. MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY
STABLE REGIME... BUT THERE WILL BE A COUPLE OF AREAS OF SOMEWHAT
HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH THE STATE
DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE POSSIBLE
EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE MOST LIKELY TO
DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE INTO
EARLY NEXT WEEK...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH...WITH A WEAK REMNANT LOW MOVING SLOWLY
WESTWARD BETWEEN THE RIDGE AND HAWAII. WOULD EXPECT A CONTINUED
SEABREEZE/LAND BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS...
WITH SOME CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. TRADES
MAY INCREASE TO MODERATE LEVELS TOWARD THE MIDDLE AND LATER PART
OF NEXT WEEK...WHICH WOULD BRING A RETURN TO TYPICAL TRADE WIND
WEATHER ACROSS THE STATE.

&&

.AVIATION...
A RELATIVELY DRY AND STABLE AIRMASS OVER THE ISLANDS MEANS VFR
CONDITIONS ARE EXPECTED TO PREVAIL TODAY. LIGHT TRADE WINDS MAY
ALLOW FOR SOME LOCAL SEA BREEZES THIS AFTERNOON...WHICH COULD
BRING A FEW CLOUDS OVER THE INTERIOR OF THE ISLANDS AT THAT TIME.
OTHERWISE...EXPECT A FEW CLOUDS OVER THE WINDWARD AND MOUNTAIN
AREAS. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
LATEST DATA FROM THE NEAR SHORE BUOYS JUST EAST OF OAHU AND NORTH
OF MAUI STILL SHOWS NO SIGN OF THE ANTICIPATED LONG PERIOD
EASTERLY SWELL...WHICH ORIGINATED FROM FORMER EAST PACIFIC
HURRICANE MARIE. HOWEVER...THERE IS SOME LONG PERIOD SWELL ENERGY
STARTING TO APPEAR AT BUOY 51004...LOCATED 205 NM SE OF HILO.
ALTHOUGH THE TIMING NOW SEEMS LIKELY TO BE A BIT SLOWER THAN
PREVIOUSLY FORECAST...WE STILL EXPECT THIS SWELL TO BEGIN BUILDING
ACROSS THE NEARSHORE WATERS DURING THE AFTERNOON AND INTO TONIGHT...
WITH ADVISORY LEVEL SURF ACROSS EAST FACING SHORES POSSIBLE LATER
THIS AFTERNOON...BECOMING LIKELY TONIGHT THROUGH FRIDAY. WHILE
SURF HEIGHTS ARE NOT EXPECTED TO BE EXCEPTIONALLY HIGH...LONG
PERIOD SWELL ENERGY FROM THE EAST IS SOMEWHAT UNUSUAL...RESULTING
IN NORMALLY SHELTERED WINDWARD LOCALES SEEING LARGER LONG PERIOD
WAVES AND STRONG CURRENTS.

LATEST DATA FROM THE NEAR SHORE BUOY JUST SOUTHWEST OF OAHU
INDICATE THAT THE EXPECTED SOUTH SWELL HAS ARRIVED...AND MORNING
SURF OBS FROM THE OAHU SOUTH SHORE DO INDICATE ELEVATED SURF NEAR
ADVISORY LEVELS. THIS SWELL IS FORECAST TO BUILD A BIT MORE THROUGH
THE REST OF TODAY INTO TONIGHT...WITH ADVISORY LEVEL SURF EXPECTED
ALONG SOUTH FACING SHORES THROUGH FRIDAY. STRONG CURRENTS WILL
DEVELOP IN SOME AREAS DUE THE INTERACTION BETWEEN THE LONG PERIOD
EAST AND SOUTH SWELLS. THE SURF FROM BOTH SWELLS WILL SLOWLY
DECLINE DURING THE WEEKEND.

AS TRADE WINDS CONTINUE TO DIMINISH...SMALL CRAFT ADVISORY
CRITERIA WINDS OF 25 KT OR GREATER ARE NOT EXPECTED THROUGH THE
REST OF THIS WEEK AND THE HOLIDAY WEEKEND. HOWEVER...THE LONG
PERIOD EASTERLY AND SOUTHERLY SWELL MENTIONED ABOVE COULD BRING
CONFUSED SEAS TO AREAS EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...M BALLARD






000
FXHW60 PHFO 281949
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
949 AM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL WEAKEN TODAY...WITH LOCAL SEA BREEZES DEVELOPING
THIS AFTERNOON. TRADES WILL BECOME LIGHT FROM FRIDAY THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK...ALLOWING MORE WIDESPREAD
AFTERNOON SEA BREEZES AND NIGHTTIME LAND BREEZES TO DEVELOP OVER
LEEWARD AND INTERIOR AREAS. AFTERNOON AND EVENING CLOUDS AND
SHOWERS WILL DEVELOP OVER LEEWARD AND INTERIOR SECTIONS...FOLLOWED
BY NIGHTTIME CLEARING...WHILE PASSING LOW CLOUDS WILL AFFECT THE
WINDWARD AREAS AT TIMES. STRONGER TRADE WINDS MAY RETURN BY THE
MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...
RADAR LOOPS DEPICT WIDELY SCATTERED RAIN SHOWERS ACROSS THE
WINDWARD COASTAL WATERS...WHILE RAIN GAUGES HAVE MEASURED JUST
LIGHT ACCUMULATIONS ACROSS SOME WINDWARD AREAS DURING THE PAST
SEVERAL HOURS. SURFACE ANALYSIS SHOWS AN EAST-WEST HIGH PRESSURE
RIDGE FAR TO THE NORTH OF THE STATE ALONG 40N...WITH A REMNANT LOW
FROM FORMER EAST PACIFIC TROPICAL CYCLONE LOWELL NEAR 31N 143W.
TRADES ARE BEGINNING TO WEAKEN ACROSS THE STATE...ALTHOUGH THE 12Z
LIHUE SOUNDING AND MORE RECENT 88D VWP DATA STILL SHOW TRADE WINDS
AROUND 15 KNOTS IN THE LOW LEVELS. THE SOUNDINGS SHOW NEAR TO
SLIGHTLY BELOW PWATS OF 1.2 TO 1.3 INCHES IN PLACE...WHILE MIMIC-
TPW SATELLITE IMAGERY DEPICTS A POCKET OF SOMEWHAT HIGHER PWATS
AROUND 1.5 INCHES APPROACHING THE STATE FROM THE NORTHEAST.
RELATIVELY STABLE CONDITIONS ARE IN PLACE...WITH A MID/UPPER LEVEL
RIDGE CENTERED TO THE SOUTH OF HAWAII EXERTING ITS INFLUENCE OVER
THE STATE.

THROUGH THE REST OF TODAY...IT APPEARS THAT TRADES WILL BE WEAK
ENOUGH TO ALLOW FOR SEABREEZES TO DEVELOP ACROSS SOME LEEWARD
AREAS...BUT STRONG ENOUGH TO PREVENT A COMPLETE SWITCHOVER TO
A CONVECTIVE PATTERN. WOULD EXPECT A HYBRID PATTERN WITH SOME
PASSING SHOWERS CONTINUING WINDWARD...AND WIDELY SCATTERED SHOWERS
DEVELOPING LEEWARD/INTERIOR DURING THE AFTERNOON. WILL UPDATE THE
FORECAST SHORTLY TO TWEAK POPS AND SKY COVER.

FROM FRIDAY THROUGH THE WEEKEND...THE NORTHEAST PACIFIC HIGH WILL
REMAIN WEAKER THAN NORMAL...DUE TO A COMBINATION OF A PAIR OF
REMNANT LOWS MOVING SLOWLY WESTWARD ALONG 30N (FORMER EAST
PACIFIC TROPICAL CYCLONES LOWELL AND MARIE) AND A WEAK COLD FRONT
MOVING SLOWLY EASTWARD FROM THE INTERNATIONAL DATELINE. THIS
SYNOPTIC REGIME WILL ALLOW FOR LIGHT TRADE WINDS TO PREVAIL ACROSS
THE STATE...WITH A CONVECTIVE SEABREEZE PATTERN LIKELY TO DEVELOP
ACROSS INTERIOR AND LEEWARD AREAS EACH AFTERNOON. WOULD EXPECT
CLOUDS AND SCATTERED SHOWERS ACROSS INTERIOR/LEEWARD IN THE
AFTERNOONS AND EARLY EVENINGS...WITH SOME CLOUDS AND PASSING
SHOWERS STILL REMAINING OVER WINDWARD AREAS AS WELL. LAND BREEZES
SHOULD CLEAR OUT THE REMAINDER OF THE SMALLER ISLANDS DURING THE
NIGHTTIME HOURS. MID/UPPER LEVEL RIDGING SHOULD MAINTAIN A FAIRLY
STABLE REGIME... BUT THERE WILL BE A COUPLE OF AREAS OF SOMEWHAT
HIGHER MOISTURE (PWATS AROUND 1.5 INCHES) MOVING THROUGH THE STATE
DURING THE WEEKEND. ISOLATED HEAVIER DOWNPOURS WILL BE POSSIBLE
EACH AFTERNOON...WHEN SLOW MOVING SHOWERS WILL BE MOST LIKELY TO
DEVELOP ALONG THE SEABREEZES.

THE LIGHT TRADE WIND PATTERN SEEMS LIKELY TO CONTINUE INTO
EARLY NEXT WEEK...AS THE EAST PACIFIC RIDGE REMAINS RELATIVELY
WEAK AND FAR TO THE NORTH...WITH A WEAK REMNANT LOW MOVING SLOWLY
WESTWARD BETWEEN THE RIDGE AND HAWAII. WOULD EXPECT A CONTINUED
SEABREEZE/LAND BREEZE PATTERN ACROSS LEEWARD/INTERIOR SECTIONS...
WITH SOME CLOUDS AND PASSING SHOWERS PERSISTING WINDWARD. TRADES
MAY INCREASE TO MODERATE LEVELS TOWARD THE MIDDLE AND LATER PART
OF NEXT WEEK...WHICH WOULD BRING A RETURN TO TYPICAL TRADE WIND
WEATHER ACROSS THE STATE.

&&

.AVIATION...
A RELATIVELY DRY AND STABLE AIRMASS OVER THE ISLANDS MEANS VFR
CONDITIONS ARE EXPECTED TO PREVAIL TODAY. LIGHT TRADE WINDS MAY
ALLOW FOR SOME LOCAL SEA BREEZES THIS AFTERNOON...WHICH COULD
BRING A FEW CLOUDS OVER THE INTERIOR OF THE ISLANDS AT THAT TIME.
OTHERWISE...EXPECT A FEW CLOUDS OVER THE WINDWARD AND MOUNTAIN
AREAS. NO AIRMETS ARE EXPECTED AT THIS TIME.

&&

.MARINE...
LATEST DATA FROM THE NEAR SHORE BUOYS JUST EAST OF OAHU AND NORTH
OF MAUI STILL SHOWS NO SIGN OF THE ANTICIPATED LONG PERIOD
EASTERLY SWELL...WHICH ORIGINATED FROM FORMER EAST PACIFIC
HURRICANE MARIE. HOWEVER...THERE IS SOME LONG PERIOD SWELL ENERGY
STARTING TO APPEAR AT BUOY 51004...LOCATED 205 NM SE OF HILO.
ALTHOUGH THE TIMING NOW SEEMS LIKELY TO BE A BIT SLOWER THAN
PREVIOUSLY FORECAST...WE STILL EXPECT THIS SWELL TO BEGIN BUILDING
ACROSS THE NEARSHORE WATERS DURING THE AFTERNOON AND INTO TONIGHT...
WITH ADVISORY LEVEL SURF ACROSS EAST FACING SHORES POSSIBLE LATER
THIS AFTERNOON...BECOMING LIKELY TONIGHT THROUGH FRIDAY. WHILE
SURF HEIGHTS ARE NOT EXPECTED TO BE EXCEPTIONALLY HIGH...LONG
PERIOD SWELL ENERGY FROM THE EAST IS SOMEWHAT UNUSUAL...RESULTING
IN NORMALLY SHELTERED WINDWARD LOCALES SEEING LARGER LONG PERIOD
WAVES AND STRONG CURRENTS.

LATEST DATA FROM THE NEAR SHORE BUOY JUST SOUTHWEST OF OAHU
INDICATE THAT THE EXPECTED SOUTH SWELL HAS ARRIVED...AND MORNING
SURF OBS FROM THE OAHU SOUTH SHORE DO INDICATE ELEVATED SURF NEAR
ADVISORY LEVELS. THIS SWELL IS FORECAST TO BUILD A BIT MORE THROUGH
THE REST OF TODAY INTO TONIGHT...WITH ADVISORY LEVEL SURF EXPECTED
ALONG SOUTH FACING SHORES THROUGH FRIDAY. STRONG CURRENTS WILL
DEVELOP IN SOME AREAS DUE THE INTERACTION BETWEEN THE LONG PERIOD
EAST AND SOUTH SWELLS. THE SURF FROM BOTH SWELLS WILL SLOWLY
DECLINE DURING THE WEEKEND.

AS TRADE WINDS CONTINUE TO DIMINISH...SMALL CRAFT ADVISORY
CRITERIA WINDS OF 25 KT OR GREATER ARE NOT EXPECTED THROUGH THE
REST OF THIS WEEK AND THE HOLIDAY WEEKEND. HOWEVER...THE LONG
PERIOD EASTERLY AND SOUTHERLY SWELL MENTIONED ABOVE COULD BRING
CONFUSED SEAS TO AREAS EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY UNTIL 6 AM HST SATURDAY FOR NIIHAU-KAUAI
WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE COAST-OAHU
KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI WINDWARD WEST-
MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD HALEAKALA-LEEWARD
HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND NORTH AND EAST.

&&

$$

DISCUSSION/MARINE...JACOBSON
AVIATION...M BALLARD







000
FXHW60 PHFO 281339
AFDHFO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST THU AUG 28 2014

.SYNOPSIS...
TRADE WINDS WILL SLOWLY WEAKEN TODAY AND REMAIN LIGHT THROUGH THE
WEEKEND...ALLOWING AFTERNOON SEA BREEZES AND NIGHTTIME LAND BREEZES
TO DEVELOP OVER LEEWARD AREAS. AFTERNOON AND EVENING CLOUDS AND
SHOWERS WILL DEVELOP OVER LEEWARD AND INTERIOR AREAS...FOLLOWED BY
NIGHTTIME CLEARING...WHILE PASSING LOW CLOUDS MAY AFFECT THE
WINDWARD AREAS AT TIMES. STRONGER TRADE WINDS MAY RETURN NEXT WEEK.

&&

.DISCUSSION...
TRADE WINDS CONTINUE OVER THE ISLANDS EARLY THIS MORNING AS
INDICATED BY SURFACE OBSERVATIONS AROUND THE STATE AS WELL AS WIND
PROFILES FROM RADAR DATA. RADAR AND SATELLITE DATA INDICATE THERE
ARE SOME LOW CLOUDS AND SHOWERS IN THE ISLAND VICINITY THIS
MORNING...AND SOME OF THESE CLOUDS ARE REACHING THE
ISLANDS...BRINGING SOME SHOWERS TO MAINLY WINDWARD AND MOUNTAIN
AREAS. EARLY MORNING SOUNDINGS FROM LIHUE AND HILO CONTINUE TO SHOW
A MARGINALLY STABLE AIR MASS IN THE AREA. TRADE WINDS ARE EXPECTED
TO HOLD OVER THE ISLAND TODAY...AS A SURFACE HIGH PRESSURE REMAINS
FAR NORTH OF THE STATE. PASSING LOW CLOUDS AND SHOWERS WILL AFFECT
MAINLY WINDWARD AND MOUNTAIN AREAS.

WINDS ARE EXPECTED TO SLOWLY EASE OVER THE NEXT FEW DAYS AS A LOW
PRESSURE SYSTEM FROM THE EAST PACIFIC PASSES NORTH OF THE STATE.
WINDS WILL BECOME LIGHT ENOUGH OVER THE ISLANDS TONIGHT TO ALLOW
LAND BREEZES TO DEVELOP. AS SUCH...THE DIVERGING LAND BREEZES WILL
BRING SOME CLEARING SKIES TO THE STATE OVERNIGHT...THOUGH LOW CLOUDS
EMBEDDED IN THE LIGHT TRADE WIND FLOW MAY STILL AFFECT THE WINDWARD
AREAS AT TIMES. A MORE CONVECTIVE WEATHER PATTERN IS EXPECTED OVER
THE ISLANDS FRIDAY AND SATURDAY...WITH CLOUDS AND SHOWERS DEVELOPING
OVER THE ISLANDS IN THE AFTERNOON AND EARLY EVENING HOURS UNDER THE
CONVERGING SEA BREEZES...WHILE SOME CLEARING MAY OCCUR AT NIGHT
UNDER THE LAND BREEZES. AIR MASS IS FORECAST TO REMAIN SOMEWHAT
STABLE IN THE ISLAND VICINITY AS THERE WILL BE UPPER LEVEL RIDGING.
ON THE OTHER HAND...MOISTURE ASSOCIATED WITH THE PASSING LOW
PRESSURE SYSTEM NORTH OF THE STATE MAY BRING MORE CLOUDS AND EVEN
SHOWERS TO MAUI COUNTY FRIDAY NIGHT...REACHING OAHU ON
SATURDAY...AND SPREADING TO KAUAI LATE SATURDAY INTO SUNDAY.

THE LIGHT TRADE WIND SCENARIO WILL LAST INTO EARLY NEXT WEEK.AS
SUCH...THE ISLANDS MAY EXPERIENCE HYBRID CONVECTIVE AND TRADE WIND
WEATHER FOR THE REST OF THE HOLIDAY WEEKEND...WITH LOW CLOUDS AND
SHOWERS AFFECTING WINDWARD AREAS AT TIMES...WHILE THE LEE AREAS MAY
SEE AFTERNOON AND EVENING CLOUDS AND SOME SHOWERS. STRONGER TRADE
WINDS MAY STILL RETURN TO THE ISLANDS BY THE MIDDLE OF NEXT
WEEK...THOUGH THE WIND SPEEDS WILL STAY MODEST AT BEST. IF SO...MORE
TYPICAL TRADE WIND WEATHER WILL RETURN TO THE ISLANDS AS WELL.

&&

.AVIATION...
VFR CONDITIONS PREVAIL AT ALL TAF SITES THIS MORNING AND ARE
EXPECTED TO CONTINUE TODAY. WINDWARD AND MOUNTAIN AREAS MAY
EXPERIENCE BRIEF MVFR CEILING CONDITIONS DUE TO PASSING LOW CLOUDS.

NO AIRMET IS ANTICIPATED.

&&

.MARINE...
LATEST DATA FROM THE NEAR SHORE BUOYS JUST EAST OF OAHU AND NORTH OF
MAUI STILL SHOWED NO SIGN OF THE ANTICIPATED ABNORMALLY LONG-PERIOD
SWELL FROM HURRICANE MARIE EARLY THIS MORNING. STILL EXPECT THIS
SWELL TO SLOWLY REACH THE ISLAND WATERS LATER TODAY...AND WILL BRING
ADVISORY LEVEL SURF TO EAST FACING SHORES TODAY THROUGH FRIDAY.
WHILE SURF HEIGHTS ARE NOT EXPECTED TO BE EXCEPTIONALLY HIGH...LONG
PERIOD SWELL ENERGY FROM THE EAST IS SOMEWHAT UNUSUAL...RESULTING IN
NORMALLY SHELTERED WINDWARD LOCALES SEEING LARGER LONG PERIOD WAVES
AND STRONG CURRENTS.

LATEST READINGS FROM THE NEAR SHORE BUOY JUST SOUTHWEST OAHU
INDICATED THE SOUTH SWELL HAS ARRIVED...THOUGH SWELL HEIGHTS ARE A
TAD LOWER THAN EXPECTED AT THIS TIME. STILL BELIEVE THIS SOUTH SWELL
WILL CONTINUE TO BUILD TODAY...BRINGING ADVISORY LEVEL SURF ALONG
SOUTH FACING SHORES THROUGH FRIDAY. STRONG CURRENTS WILL DEVELOP IN
SOME AREAS DUE THE INTERACTION BETWEEN THESE TWO SWELLS. THE SURF
FROM BOTH SWELLS WILL SLOWLY DECLINE OVER THE WEEKEND.

AS WINDS SLOWLY DIMINISH...NO SMALL CRAFT WIND CONDITIONS ARE
EXPECTED THROUGH THE HOLIDAY WEEKEND. HOWEVER...THE LONG PERIOD
EASTERLY AND SOUTHERLY SWELL MENTIONED ABOVE COULD BRING CONFUSED
SEAS TO AREAS EXPOSED TO BOTH SWELLS.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY FROM 6 AM TODAY TO 6 AM HST SATURDAY FOR
NIIHAU-KAUAI WINDWARD-KAUAI LEEWARD-OAHU SOUTH SHORE-WAIANAE
COAST-OAHU KOOLAU-OLOMANA-MOLOKAI-LANAI MAKAI-KAHOOLAWE-MAUI
WINDWARD WEST-MAUI LEEWARD WEST-MAUI CENTRAL VALLEY-WINDWARD
HALEAKALA-LEEWARD HALEAKALA-KONA-SOUTH BIG ISLAND-BIG ISLAND
NORTH AND EAST.

&&

$$

HUI






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