893
WHAK42 PAFC 260419
CFWALU
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
819 PM AKDT SUN OCT 25 2026
AKZ755-270100-
/O.EXT.PAFC.CF.Y.0004.000000T0000Z-261028T1800Z/
KUSKOKWIM DELTA COAST AND NUNIVAK ISLAND-
819 PM AKDT SUN OCT 25 2026
...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 10 AM AKDT
WEDNESDAY...
* WHAT...COASTAL FLOODING, WITH WATER LEVELS OF 1 TO 2.5 FEET
ABOVE THE NORMAL HIGHEST TIDE LINE, AND 30 TO 40 MPH SOUTHWEST
WINDS WITH GUSTS UP TO 40 TO 55 MPH.
* WHERE...KUSKOKWIM DELTA COAST, INCLUDING KIPNUK, KWIGILLINGOK
AND KONGIGANAK.
* WHEN...UNTIL 10 AM AKDT WEDNESDAY, HIGHEST WATER LEVELS EXPECTED
DURING EACH UPCOMING HIGH TIDE THROUGH WEDNESDAY MORNING.
* IMPACTS...COASTAL FLOODING OF LOW LYING AREAS AND EROSION ARE
POSSIBLE.
* ADDITIONAL DETAILS...STEADY SOUTH TO SOUTHWESTERLY FLOW IS
EXPECTED TO CONTINUE FOR THE KUSKOKWIM DELTA COASTLINE THROUGH
WEDNESDAY MORNING AS A SERIES OF LOW PRESSURE SYSTEMS TRACK
ACROSS THE BERING SEA. COASTAL EROSION AND MINOR COASTAL
FLOODING WILL BE POSSIBLE WITH EACH UPCOMING HIGH TIDE DUE TO
THE PERSISTENT ONSHORE WINDS, DURING WHICH MAXIMUM WATER LEVELS
WILL REACH BETWEEN 1 AND 2.5 FT ABOVE THE NORMAL HIGHEST TIDE
LINE, INCLUDING IN AND AROUND KIPNUK AND KWIGILLINGOK. THE
STRONG WINDS MAY REDUCE THE ABILITY FOR FLOOD WATERS TO RECEDE
DURING AND CLOSE TO LOW TIDE, POSSIBLY LEADING TO PROLONGED
HIGHER THAN NORMAL WATER LEVELS ALONG THE COAST AND NEAR THE
MOUTH OF THE KUSKOKWIM RIVER. THERE WILL BE A BREAK IN STRONG
WINDS BETWEEN WEDNESDAY AFTERNOON AND THURSDAY MORNING,
HOWEVER, WE ARE MONITORING THE POTENTIAL FOR ANOTHER STRONG
STORM SYSTEM THAT COULD CAUSE ADDITIONAL COASTAL IMPACTS TOWARDS
THE END OF THIS WEEK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.
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