667
WHHW40 PHFO 230623
CFWHFO
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HONOLULU HI
823 PM HST WED OCT 22 2025
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THURSDAY FOR NORTH
AND WEST FACING SHORES OF KAUAI NIIHAU OAHU MOLOKAI AND NORTH
FACING SHORES OF MAUI...
.THE LATEST OFFSHORE BUOY 51001 OBSERVATIONS ARE SHOWING SLIGHTLY
HIGHER NNW LONG PERIOD SWELL ENERGY MOVING INTO THE HAWAII REGION THAT
WILL SWIFTLY BUILD SURF HEIGHTS ALONG NORTH AND WEST FACING SHORES
JUST ABOVE HIGH SURF ADVISORY (HSA) THRESHOLDS. THE SURF FORECAST
WAS UPDATED TO REFLECT THESE HIGHER SURF HEIGHTS AND A HSA WAS
ISSUED THIS EVENING FOR NORTH AND WEST FACING SHORES OF KAUAI,
NIIHAU, OAHU, MOLOKAI; INCLUDING NORTH FACING SHORES OF MAUI. THIS
MODERATE, MEDIUM PERIOD NNW (330) SWELL WILL PEAK LATER TONIGHT
KEEPING SURF HEIGHTS JUST ABOVE THE HSA THRESHOLDS THROUGH
THURSDAY AFTERNOON BEFORE FALLING BELOW HSA THRESHOLDS BY THURSDAY
NIGHT.
HIZ001-003-006-007-017-029-037-039-040-045-047-231930-
/O.NEW.PHFO.SU.Y.0030.251023T0623Z-251024T0400Z/
NIIHAU-KAUAI SOUTHWEST-WAIANAE COAST-OAHU NORTH SHORE-
MAUI WINDWARD WEST-KAUAI NORTH-MOLOKAI WINDWARD-MOLOKAI NORTH-
MOLOKAI WEST-MAUI CENTRAL VALLEY NORTH-WINDWARD HALEAKALA-
823 PM HST WED OCT 22 2025
..HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THURSDAY
* WHAT...SURF BUILDING TO 10 TO 16 FEET ALONG NORTH FACING SHORES
OF KAUAI, NIIHAU, OAHU, MOLOKAI AND MAUI. SURF BUILDING TO 8 TO
12 FEET ALONG WEST FACING SHORES OF KAUAI, NIIHAU, OAHU AND
MOLOKAI.
* WHERE...NORTH AND WEST FACING SHORES OF KAUAI, NIIHAU, OAHU,
MOLOKAI AND NORTH FACING SHORES OF MAUI.
* WHEN...UNTIL 6 PM HST THURSDAY.
* IMPACTS...MODERATE. STRONG BREAKING WAVES AND STRONG CURRENTS
WILL MAKE SWIMMING DANGEROUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEED ALL ADVICE FROM OCEAN SAFETY OFFICIALS. WHEN IN DOUBT, DON'T
GO OUT.
RCB
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