Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.
Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height.
- TODAY: N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- TONIGHT: N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- SUN: N wind 40 kt. Seas in ice free waters 3 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- SUN NIGHT: N wind 35 kt. Seas in ice free waters 3 ft.
- MON: N wind 35 kt. Seas in ice free waters 2 ft.
- TUE THROUGH WED: N wind 30 kt. Seas in ice free waters 3 ft.
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .TONIGHT...N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SUN...N wind 40 kt. Seas in ice free waters 3 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SUN NIGHT...N wind 35 kt. Seas in ice free waters 3 ft. .MON...N wind 35 kt. Seas in ice free waters 2 ft. .TUE THROUGH WED...N wind 30 kt. Seas in ice free waters 3 ft.
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.
Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height.
- TODAY: N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- TONIGHT: N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- SUN: N wind 40 kt. Seas in ice free waters 3 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels.
- SUN NIGHT: N wind 35 kt. Seas in ice free waters 3 ft.
- MON: N wind 35 kt. Seas in ice free waters 2 ft.
- TUE THROUGH WED: N wind 30 kt. Seas in ice free waters 3 ft.
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .TONIGHT...N wind 45 kt. Seas in ice free waters 5 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SUN...N wind 40 kt. Seas in ice free waters 3 ft. Extreme freezing spray at a rate of 4 cm per hour or greater may rapidly accumulate on vessels. .SUN NIGHT...N wind 35 kt. Seas in ice free waters 3 ft. .MON...N wind 35 kt. Seas in ice free waters 2 ft. .TUE THROUGH WED...N wind 30 kt. Seas in ice free waters 3 ft.
Northeasterly winds in combination with Arctic Air surging south across the Bering Sea is likely to lead to extreme vessel icing at rates of 4 cm per hour or greater. As colder air filters in from the Arctic over the weekend, northerly winds will intensify across the eastern Bering Sea. These factors will cause extreme freezing spray to spread south and west from the Kuskokwim Delta. Heavy to extreme freezing spray will extend from Cape Newenham to north and west of Nunivak Island beginning Saturday morning. Extreme freezing spray is also possible out of Kvichak Bay as far west as Cape Constantine. Winds diminish on Monday, which should cause icing rates to decrease by Monday afternoon. Operating a vessel in heavy to extreme freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperable. Rapid ice accretion on decks and superstructures may result in catastrophic loss of stability.
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