Heavy Freezing Spray Warning 75, NWS Anchorage, AK

902 
FZAK52 PAFC 220030
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
330 PM AKST Sun Feb 21 2021

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.

PKZ199-221330-
330 PM AKST Sun Feb 21 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 mb low 375 nm west of Attu moves to 285 nm west of St Paul 
Island at 991 mb for Tue afternoon. Its front sweeps the Aleutians
and moves into Western Alaska by Tue afternoon. A 976 mb low and 
front approach the Western Aleutians Tue afternoon.

$$

PKZ150-221330-
South of the AK Peninsula Sitkinak to Castle Cape-
330 PM AKST Sun Feb 21 2021

...HEAVY FREEZING SPRAY WARNING TONIGHT...
...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 15 ft. Heavy freezing spray.
.MON...W wind 30 kt. Seas 16 ft.
.MON NIGHT...SW wind 25 kt. Seas 12 ft.
.TUE...S wind 25 kt. Seas 10 ft.
.TUE NIGHT...S wind 30 kt. Seas 11 ft.
.WED...W wind 35 kt. Seas 19 ft.
.THU...SW wind 30 kt. Seas 19 ft.
.FRI...S wind 25 kt. Seas 14 ft.

$$

PKZ155-221330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
330 PM AKST Sun Feb 21 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 16 ft.
.MON...SW wind 30 kt. Seas 15 ft.
.MON NIGHT...S wind 30 kt. Seas 13 ft.
.TUE...S wind 30 kt. Seas 13 ft.
.TUE NIGHT...SW wind 35 kt. Seas 12 ft.
.WED...SW wind 35 kt. Seas 19 ft.
.THU THROUGH FRI...S wind 30 kt. Seas 18 ft.

$$

PKZ160-221330-
Bristol Bay-
330 PM AKST Sun Feb 21 2021

...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas in ice free waters 6 ft. Heavy
freezing spray.
.MON...NW wind 25 kt becoming NE 10 kt in the afternoon. Seas in
ice free waters 6 ft. Heavy freezing spray.
.MON NIGHT...SE wind 30 kt. Seas in ice free waters 4 ft. Heavy
freezing spray.
.TUE...SE wind 25 kt. Seas in ice free waters 5 ft.
.TUE NIGHT...SE wind 20 kt. Seas in ice free waters 4 ft.
.WED THROUGH THU...SW wind 25 kt. Seas in ice free waters 7 ft.
.FRI...SE wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ165-221330-
Port Heiden to Cape Sarichef-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY...

.TONIGHT...NW wind 25 kt. Seas 7 ft. Freezing spray.
.MON...SE wind 20 kt increasing to 35 kt in the afternoon. From
Port Moller E, W wind 20 kt becoming SE in the afternoon. Seas 6 ft.
Freezing spray.
.MON NIGHT...S wind 30 kt. Seas 8 ft.
.TUE...S wind 30 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 7 ft.
.WED...SW wind 30 kt. Seas 12 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 12 ft.

$$

PKZ170-221330-
Cape Sarichef to Nikolski Bering Side-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY...

.TONIGHT...S wind 25 kt. Seas 8 ft. Snow.
.MON...S wind 40 kt. Seas 11 ft. Rain and snow.
.MON NIGHT...S wind 30 kt. Seas 11 ft. Rain showers.
.TUE...S wind 25 kt. Seas 7 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED THROUGH THU...S wind 30 kt. Seas 13 ft.
.FRI...S wind 30 kt. Seas 17 ft.

$$

PKZ171-221330-
Unalaska Bay-
330 PM AKST Sun Feb 21 2021

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...W wind 20 kt becoming S after midnight. Seas 3 ft.
Snow.
.MON...S wind 30 kt. Seas 5 ft. Rain and snow.
.MON NIGHT...S wind 30 kt diminishing to 20 kt after midnight.
Seas 4 ft. Rain.
.TUE...S wind 20 kt. Seas 3 ft.
.TUE NIGHT...SW wind 30 kt. Seas 5 ft.
.WED...SW wind 25 kt. Seas 4 ft.
.THU...S wind 20 kt. Seas 3 ft.
.FRI...S wind 25 kt. Seas 3 ft.

$$

PKZ172-221330-
Cape Sarichef to Nikolski Pacific Side-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 17 ft. Snow showers.
.MON...SW wind 35 kt. Seas 17 ft.
.MON NIGHT...S wind 35 kt. Seas 17 ft. Rain.
.TUE...SW wind 30 kt. Seas 14 ft.
.TUE NIGHT...SW wind 35 kt. Seas 15 ft.
.WED...SW wind 35 kt. Seas 18 ft.
.THU THROUGH FRI...S wind 30 kt. Seas 19 ft.

$$

PKZ173-221330-
Nikolski to Seguam Island Bering Side-
330 PM AKST Sun Feb 21 2021

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S wind 20 kt increasing to 35 kt after midnight. Seas
10 ft. Snow and rain.
.MON...S wind 35 kt. Seas 13 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 9 ft.
.TUE AND TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED THROUGH THU...S wind 30 kt. Seas 13 ft.
.FRI...S wind 30 kt. Seas 19 ft.

$$

PKZ174-221330-
Nikolski to Seguam Island Pacific Side-
330 PM AKST Sun Feb 21 2021

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S wind 25 kt increasing to 35 kt after midnight. Seas
16 ft. Snow.
.MON...S wind 40 kt. Seas 19 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 17 ft. Rain.
.TUE AND TUE NIGHT...SW wind 35 kt. Seas 18 ft.
.WED...SW wind 35 kt. Seas 17 ft.
.THU...S wind 25 kt. Seas 20 ft.
.FRI...S wind 30 kt. Seas 23 ft.

$$

PKZ175-221330-
Seguam Island to Adak Bering Side-
330 PM AKST Sun Feb 21 2021

...SMALL CRAFT ADVISORY TONIGHT AND MONDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain and snow showers.
.MON...S wind 20 kt. Seas 7 ft.
.MON NIGHT...S wind 30 kt. Seas 9 ft. Snow showers and rain
showers.
.TUE AND TUE NIGHT...SW wind 30 kt. Seas 10 ft.
.WED THROUGH THU...S wind 35 kt. Seas 12 ft.
.FRI...SW wind 30 kt. Seas 16 ft.

$$

PKZ176-221330-
Seguam Island to Adak Pacific Side-
330 PM AKST Sun Feb 21 2021

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S wind 35 kt. Seas 16 ft. Rain and snow.
.MON...SW wind 35 kt diminishing to 25 kt in the afternoon. Seas
16 ft.
.MON NIGHT...S wind 30 kt. Seas 17 ft. Snow showers.
.TUE AND TUE NIGHT...SW wind 35 kt. Seas 19 ft.
.WED...SW wind 35 kt. Seas 20 ft.
.THU...S wind 30 kt. Seas 22 ft.
.FRI...SW wind 30 kt. Seas 21 ft.

$$

PKZ177-221330-
Adak to Kiska-
330 PM AKST Sun Feb 21 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 13 ft. Snow.
.MON...S wind 30 kt. Seas 15 ft.
.MON NIGHT...S wind 30 kt. Seas 12 ft Bering side... 21 ft Pac
side. Widespread snow showers.
.TUE...W wind 35 kt. Seas 18 ft.
.TUE NIGHT...S wind 35 kt. Seas 13 ft.
.WED...S wind 40 kt. Seas 27 ft.
.THU...S wind 35 kt. Seas 27 ft.
.FRI...SW wind 25 kt. Seas 19 ft.

$$

PKZ178-221330-
Kiska to Attu-
330 PM AKST Sun Feb 21 2021

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt. Seas 13 ft. Snow.
.MON...S wind 25 kt. Seas 17 ft.
.MON NIGHT...N wind 25 kt. Seas 17 ft.
.TUE...W wind 25 kt. Seas 13 ft.
.TUE NIGHT...E wind 30 kt. Seas 10 ft.
.WED...S wind 35 kt. Seas 26 ft.
.THU...SW wind 30 kt. Seas 25 ft.
.FRI...W wind 20 kt. Seas 14 ft.

$$

PKZ179-221330-
Pribilof Islands Near Shore Waters-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY...
...HEAVY FREEZING SPRAY WARNING MONDAY...

.TONIGHT...NW wind 15 kt. Seas 7 ft. Freezing spray.
.MON...SE wind 35 kt. Seas 9 ft. Heavy freezing spray. Snow.
.MON NIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...SE wind 15 kt. Seas 7 ft.
.TUE NIGHT...SW wind 20 kt. Seas 10 ft.
.WED THROUGH THU...S wind 30 kt. Seas 12 ft.
.FRI...S wind 25 kt. Seas 13 ft.

$$

PKZ180-221330-
Kuskokwim Delta and Etolin Strait-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas in ice free waters 5 ft. Heavy
freezing spray.
.MON...N wind 15 kt becoming E 25 kt in the afternoon. Seas in ice
free waters 4 ft. Heavy freezing spray.
.MON NIGHT...E wind 35 kt. Seas in ice free waters 7 ft. Heavy
freezing spray. Snow.
.TUE AND TUE NIGHT...S wind 25 kt. Seas in ice free waters 7 ft.
.WED THROUGH THU...S wind 25 kt. Seas in ice free waters 9 ft.
.FRI...SE wind 20 kt. Seas in ice free waters 8 ft.

$$

PKZ181-221330-
North and West of Nunivak Island-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 20 kt.
.MON...Variable wind 10 kt becoming E 25 kt in the afternoon.
.MON NIGHT...E wind 35 kt. Snow.
.TUE...E wind 20 kt.
.TUE NIGHT...NE wind 20 kt.
.WED THROUGH THU...NE wind 20 kt.
.FRI...E wind 20 kt.

$$

PKZ185-221330-
Saint Matthew Island Waters-
330 PM AKST Sun Feb 21 2021

...GALE WARNING MONDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas in ice free waters 7 ft. Heavy
freezing spray.
.MON...E wind 30 kt. Seas in ice free waters 9 ft. Heavy freezing
spray.
.MON NIGHT...N of Saint Matthew Island...E wind 30 kt. S of Saint 
Matthew Island...E wind 35 kt. Seas in ice free waters 12 ft. Heavy 
freezing spray. Snow.
.TUE...NE wind 25 kt. Seas in ice free waters 10 ft.
.TUE NIGHT...NE wind 30 kt. Seas in ice free waters 10 ft.
.WED...N wind 30 kt. Seas in ice free waters 9 ft.
.THU THROUGH FRI...N wind 30 kt. Seas in ice free waters 15 ft.

$$

122 
FZAK52 PAFC 221220
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
320 AM AKST Mon Feb 22 2021

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.

PKZ199-230100-
320 AM AKST Mon Feb 22 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

There is a 983 mb low 200 nm South of Attu Island Mon morning 
that moves to 120 nm West of St Paul Island at 990 mb Tue 
afternoon. Its front sweeps the Aleutians and moves into Western 
Alaska. A 976 mb low and front approach the Western Aleutians Tue
afternoon.

$$

PKZ150-230100-
South of the AK Peninsula Sitkinak to Castle Cape-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 30 kt. Seas 15 ft. Freezing spray.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.TUE...S wind 25 kt. Seas 10 ft.
.TUE NIGHT...SE wind 20 kt. Seas 9 ft.
.WED...W wind 35 kt. Seas 14 ft.
.THU...SW wind 30 kt. Seas 14 ft.
.FRI...S wind 25 kt. Seas 14 ft.

$$

PKZ155-230100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 25 kt. Seas 14 ft. Freezing spray. Snow.
.TONIGHT...S wind 30 kt. Seas 13 ft.
.TUE...S wind 25 kt. Seas 12 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...SW wind 35 kt. Seas 15 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 14 ft.

$$

PKZ160-230100-
Bristol Bay-
320 AM AKST Mon Feb 22 2021

...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY...
...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt becoming N 15 kt in the afternoon. Seas in
ice free waters 6 ft. Heavy freezing spray.
.TONIGHT...E wind 15 kt increasing to 25 kt after midnight. Seas in 
ice free waters 4 ft. Heavy freezing spray. Snow.
.TUE...SE wind 20 kt. Seas in ice free waters 5 ft. Heavy freezing
spray. Snow.
.TUE NIGHT...SE wind 20 kt. Seas in ice free waters 5 ft.
.WED THROUGH THU...SW wind 30 kt. Seas in ice free waters 8 ft.
.FRI...S wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ165-230100-
Port Heiden to Cape Sarichef-
320 AM AKST Mon Feb 22 2021

...HEAVY FREEZING SPRAY WARNING TODAY...
...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY...

.TODAY...NW wind 20 kt becoming E in the afternoon. Seas 6 ft.
Heavy freezing spray. Snow.
.TONIGHT...S wind 30 kt. Seas 7 ft.
.TUE...S wind 30 kt. Seas 7 ft. Rain showers.
.TUE NIGHT...S wind 25 kt. Seas 7 ft.
.WED...SW wind 35 kt. Seas 13 ft.
.THU...S wind 25 kt. Seas 13 ft.
.FRI...S wind 25 kt. Seas 8 ft.

$$

PKZ170-230100-
Cape Sarichef to Nikolski Bering Side-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 30 kt. Seas 10 ft. Rain and snow.
.TONIGHT...S wind 30 kt diminishing to 20 kt after midnight. 
Seas 10 ft.
.TUE...S wind 25 kt. Seas 7 ft. Rain.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...SW wind 35 kt. Seas 13 ft.
.THU...S wind 25 kt. Seas 12 ft.
.FRI...S wind 30 kt. Seas 13 ft.

$$

PKZ171-230100-
Unalaska Bay-
320 AM AKST Mon Feb 22 2021

.TODAY...S wind increasing to 20 kt. Seas 3 ft. Rain and snow.
.TONIGHT...S wind 20 kt. Seas 2 ft. Rain.
.TUE...S wind 20 kt. Seas 3 ft. Rain.
.TUE NIGHT...SW wind 30 kt. Seas 4 ft.
.WED...SW wind 25 kt. Seas 4 ft.
.THU...S wind 25 kt. Seas 4 ft.
.FRI...S wind 20 kt. Seas 3 ft.

$$

PKZ172-230100-
Cape Sarichef to Nikolski Pacific Side-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 30 kt. Seas 15 ft.
.TONIGHT...S wind 30 kt. Seas 16 ft. Rain.
.TUE...S wind 30 kt. Seas 14 ft. Rain.
.TUE NIGHT...SW wind 30 kt. Seas 16 ft.
.WED...SW wind 35 kt. Seas 16 ft.
.THU...S wind 25 kt. Seas 14 ft.
.FRI...S wind 30 kt. Seas 15 ft.

$$

PKZ173-230100-
Nikolski to Seguam Island Bering Side-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TODAY...

.TODAY...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 13 ft. Rain.
.TONIGHT...S wind 25 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED...SW wind 35 kt. Seas 12 ft.
.THU...S wind 25 kt. Seas 13 ft.
.FRI...SW wind 30 kt. Seas 22 ft.

$$

PKZ174-230100-
Nikolski to Seguam Island Pacific Side-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TODAY...

.TODAY...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 17 ft. Rain.
.TONIGHT...S wind 25 kt. Seas 15 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.TUE NIGHT...SW wind 35 kt. Seas 19 ft.
.WED...SW wind 35 kt. Seas 16 ft.
.THU THROUGH FRI...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-230100-
Seguam Island to Adak Bering Side-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 25 kt. Seas 7 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 9 ft. Widespread snow and rain
showers.
.TUE...SW wind 30 kt. Seas 9 ft. Snow showers.
.TUE NIGHT...SW wind 30 kt. Seas 9 ft.
.WED...SW wind 35 kt. Seas 14 ft.
.THU...S wind 30 kt. Seas 11 ft.
.FRI...SW wind 30 kt. Seas 21 ft.

$$

PKZ176-230100-
Seguam Island to Adak Pacific Side-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TODAY AND TUESDAY...

.TODAY...SW wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 16 ft.
.TONIGHT...S wind 30 kt. Seas 17 ft.
.TUE...SW wind 35 kt. Seas 20 ft.
.TUE NIGHT...SW wind 35 kt. Seas 19 ft.
.WED...SW wind 35 kt. Seas 15 ft.
.THU...S wind 30 kt. Seas 20 ft.
.FRI...SW wind 30 kt. Seas 18 ft.

$$

PKZ177-230100-
Adak to Kiska-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 30 kt. Seas 14 ft.
.TONIGHT...S wind 30 kt. Seas 12 ft Bering side...20 ft Pacific 
side. Widespread snow showers.
.TUE...W wind 30 kt. Seas 11 ft Bering side...19 ft Pacific side.
.TUE NIGHT...S wind 35 kt. Seas 14 ft.
.WED...SW wind 35 kt. Seas 18 ft.
.THU...S wind 30 kt. Seas 17 ft.
.FRI...SW wind 30 kt. Seas 18 ft.

$$

PKZ178-230100-
Kiska to Attu-
320 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...S wind 25 kt. Seas 16 ft.
.TONIGHT...NW wind 25 kt. Seas 17 ft.
.TUE...NW wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 13 ft.
.TUE NIGHT...E wind 30 kt. Seas 12 ft.
.WED...S wind 35 kt. Seas 21 ft.
.THU...S wind 30 kt. Seas 21 ft.
.FRI...W wind 30 kt. Seas 17 ft.

$$

PKZ179-230100-
Pribilof Islands Near Shore Waters-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...E wind 30 kt increasing to 40 kt in the afternoon. 
Seas7 ft building to 11 ft in the afternoon. Heavy freezing 
spray in the morning. Snow with rain.
.TONIGHT...SW wind 25 kt becoming S 15 kt after midnight. 
Seas 10 ft.
.TUE...SE wind 20 kt. Seas 8 ft. Snow showers and rain showers.
.TUE NIGHT...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 14 ft.

$$

PKZ180-230100-
Kuskokwim Delta and Etolin Strait-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...NW wind 20 kt becoming E in the afternoon. Seas in ice
free waters 4 ft. Heavy freezing spray.
.TONIGHT...E wind 25 kt increasing to 35 kt after midnight. 
Seas in ice free waters 6 ft. Heavy freezing spray. Snow.
.TUE...S wind 25 kt. Seas in ice free waters 7 ft. Rain.
.TUE NIGHT...S wind 25 kt. Seas in ice free waters 7 ft.
.WED...SW wind 25 kt. Seas in ice free waters 9 ft.
.THU...S wind 25 kt. Seas in ice free waters 9 ft.
.FRI...SE wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ181-230100-
North and West of Nunivak Island-
320 AM AKST Mon Feb 22 2021

...BRISK WIND ADVISORY TONIGHT...

.TODAY...Variable wind 10 kt becoming E 20 kt in the afternoon.
.TONIGHT...E wind increasing to 30 kt. Snow.
.TUE...SE wind 20 kt.
.TUE NIGHT...NE wind 25 kt.
.WED...N wind 25 kt.
.THU THROUGH FRI...E wind 20 kt.

$$

PKZ185-230100-
Saint Matthew Island Waters-
320 AM AKST Mon Feb 22 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas in ice free waters 9 ft. 
Heavy freezing spray.
.TONIGHT...E wind 35 kt. Seas in ice free waters 12 ft. 
Heavy freezing spray. Snow.
.TUE...E wind 25 kt E of Saint Matthew Island...NE 30 kt 
W of Saint Matthew Island. Seas in ice free waters 12 ft. 
Heavy freezing spray.
.TUE NIGHT...NE wind 30 kt. Seas in ice free waters 10 ft.
.WED...NE wind 30 kt. Seas in ice free waters 9 ft.
.THU THROUGH FRI...NE wind 35 kt. Seas in ice free waters 13 ft.

$$

963 
FZAK52 PAFC 230046
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
346 PM AKST Mon Feb 22 2021

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.

PKZ199-231330-
346 PM AKST Mon Feb 22 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 986 mb low 135 nm southeast of Attu Island moves to 175 nm west
of Saint Paul Island at 991 mb Tue afternoon then to 175 nm west 
of Saint Matthew Island at 994 mb by Wed afternoon. A 992 mb low 
180 nm west of Saint Paul Island moves to 80 nm west of Saint 
Matthew Island by Tue morning at 995 mb then dissipates by Tue 
afternoon. A front enters the Western Bering by Wed morning.

$$

PKZ150-231330-
South of the AK Peninsula Sitkinak to Castle Cape-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 11 ft.
.TUE...S wind 20 kt. Seas 9 ft. Freezing spray N of Chirikof Island.
.TUE NIGHT...Variable wind 15 kt. Seas 8 ft. Rain and snow.
.WED...W wind 35 kt. Seas 13 ft.
.WED NIGHT...W wind 30 kt. Seas 13 ft.
.THU...SW wind 30 kt. Seas 13 ft.
.FRI...S wind 25 kt. Seas 14 ft.
.SAT...W wind 30 kt. Seas 15 ft.

$$

PKZ155-231330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 13 ft.
.TUE...S wind 25 kt. Seas 12 ft.
.TUE NIGHT...S wind 20 kt becoming SW 30 kt after midnight. Seas
10 ft. Rain.
.WED AND WED NIGHT...SW wind 30 kt. Seas 15 ft.
.THU...SW wind 30 kt. Seas 13 ft.
.FRI...S wind 25 kt. Seas 14 ft.
.SAT...W wind 30 kt. Seas 19 ft.

$$

PKZ160-231330-
Bristol Bay-
346 PM AKST Mon Feb 22 2021

...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY...
...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E wind increasing to 25 kt. Seas in ice free waters 4 ft.
Heavy freezing spray.
.TUE...S wind 20 kt. Seas in ice free waters 5 ft. Heavy freezing 
spray. Snow.
.TUE NIGHT...SE wind 20 kt. Seas in ice free waters 5 ft. Snow.
.WED...SW wind 25 kt. Seas in ice free waters 5 ft.
.WED NIGHT...SW wind 30 kt. Seas in ice free waters 7 ft.
.THU...SW wind 30 kt. Seas in ice free waters 10 ft.
.FRI...S wind 20 kt. Seas in ice free waters 5 ft.
.SAT...W wind 25 kt. Seas in ice free waters 7 ft.

$$

PKZ165-231330-
Port Heiden to Cape Sarichef-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 7 ft. Freezing spray.
.TUE...S wind 25 kt. Seas 7 ft.
.TUE NIGHT...SW wind 25 kt. Seas 7 ft.
.WED AND WED NIGHT...SW wind 30 kt. Seas 11 ft.
.THU...S wind 30 kt. Seas 12 ft.
.FRI...S wind 25 kt. Seas 8 ft.
.SAT...W wind 30 kt. Seas 17 ft.

$$

PKZ170-231330-
Cape Sarichef to Nikolski Bering Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.TUE...S wind 25 kt. Seas 6 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED AND WED NIGHT...SW wind 30 kt. Seas 12 ft.
.THU THROUGH FRI...S wind 30 kt. Seas 12 ft.
.SAT...SW wind 30 kt. Seas 24 ft.

$$

PKZ171-231330-
Unalaska Bay-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...S wind 25 kt diminishing to 10 kt after midnight. Seas
3 ft. Rain.
.TUE...S wind 10 kt. Seas 2 ft. Rain.
.TUE NIGHT...SW wind 15 kt increasing to 25 kt after midnight.
Seas 3 ft.
.WED...SW wind 25 kt. Seas 4 ft.
.WED NIGHT...SW wind 20 kt. Seas 3 ft.
.THU THROUGH FRI...S wind 20 kt. Seas 3 ft.
.SAT...SW wind 25 kt. Seas 4 ft.

$$

PKZ172-231330-
Cape Sarichef to Nikolski Pacific Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 15 ft. Rain.
.TUE...S wind 25 kt. Seas 14 ft. Rain.
.TUE NIGHT...SW wind 30 kt. Seas 15 ft.
.WED...SW wind 35 kt. Seas 15 ft.
.WED NIGHT...SW wind 25 kt. Seas 15 ft.
.THU THROUGH FRI...S wind 30 kt. Seas 15 ft.
.SAT...W wind 30 kt. Seas 19 ft.

$$

PKZ173-231330-
Nikolski to Seguam Island Bering Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt becoming S 30 kt after midnight. Seas
10 ft.
.TUE...S wind 30 kt. Seas 10 ft.
.TUE NIGHT...SW wind 30 kt. Seas 11 ft.
.WED AND WED NIGHT...SW wind 30 kt. Seas 11 ft.
.THU...S wind 30 kt. Seas 13 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 23 ft.

$$

PKZ174-231330-
Nikolski to Seguam Island Pacific Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt becoming S 30 kt after midnight. Seas
16 ft.
.TUE...SW wind 25 kt. Seas 16 ft.
.TUE NIGHT...SW wind 30 kt. Seas 17 ft.
.WED...SW wind 35 kt. Seas 16 ft.
.WED NIGHT...SW wind 25 kt. Seas 14 ft.
.THU...S wind 35 kt. Seas 19 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 21 ft.

$$

PKZ175-231330-
Seguam Island to Adak Bering Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 9 ft. Rain and snow showers.
.TUE...SW wind 30 kt. Seas 10 ft.
.TUE NIGHT...W wind 30 kt becoming S 25 kt after midnight. Seas 9 
ft. Snow.
.WED AND WED NIGHT...SW wind 30 kt. Seas 13 ft.
.THU...SE wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 21 ft.

$$

PKZ176-231330-
Seguam Island to Adak Pacific Side-
346 PM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 17 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.TUE NIGHT...SW wind 30 kt. Seas 18 ft. Rain and snow.
.WED...SW wind 35 kt. Seas 15 ft.
.WED NIGHT...S wind 25 kt. Seas 14 ft.
.THU...S wind 35 kt. Seas 20 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 18 ft.

$$

PKZ177-231330-
Adak to Kiska-
346 PM AKST Mon Feb 22 2021

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 12 ft Bering side...19 ft Pacific 
side. Rain and snow showers.
.TUE...W wind 30 kt. Seas 11 ft Bering side...19 ft Pacific side.
.TUE NIGHT...SE wind 25 kt becoming SW 35 kt after midnight. Seas
8 ft Bering side...15 ft Pac side. Snow.
.WED AND WED NIGHT...SW wind 35 kt. Seas 18 ft.
.THU...S wind 30 kt. Seas 17 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 19 ft.

$$

PKZ178-231330-
Kiska to Attu-
346 PM AKST Mon Feb 22 2021

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 17 ft.
.TUE...Variable wind 15 kt. Seas 13 ft.
.TUE NIGHT...Bering side...E wind 25 kt increasing to 35 kt after
midnight. Seas 9 ft building to 14 ft after midnight. Pacific 
side...E wind 25 kt becoming SW 40 kt after midnight. Seas 9 ft 
building to 18 ft after midnight. Snow.
.WED...SW wind 40 kt. Seas 19 ft.
.WED NIGHT...SW wind 35 kt. Seas 20 ft.
.THU...S wind 25 kt. Seas 18 ft.
.FRI...W wind 30 kt. Seas 17 ft.
.SAT...E wind 25 kt. Seas 29 ft.

$$

PKZ179-231330-
Pribilof Islands Near Shore Waters-
346 PM AKST Mon Feb 22 2021

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt becoming SW 20 kt after midnight. Seas 10 
ft.
.TUE...SE wind 25 kt. Seas 10 ft.
.TUE NIGHT...S wind 20 kt becoming W after midnight. Seas 10 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.WED NIGHT...SW wind 30 kt. Seas 14 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 17 ft.

$$

PKZ180-231330-
Kuskokwim Delta and Etolin Strait-
346 PM AKST Mon Feb 22 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY...

.TONIGHT...SE wind 35 kt. Seas in ice free waters 6 ft. Heavy
freezing spray. Snow.
.TUE...S wind 25 kt, except SE 15 kt N of Cape Newenham. Seas in ice
free waters 6 ft. Heavy freezing spray and snow in the morning. Rain
in the afternoon.
.TUE NIGHT...Variable wind 15 kt. Seas in ice free waters 6 ft. 
Rain.
.WED...SW wind 20 kt. Seas in ice free waters 5 ft.
.WED NIGHT...SW wind 30 kt. Seas in ice free waters 9 ft.
.THU...S wind 30 kt. Seas in ice free waters 10 ft.
.FRI...SE wind 20 kt. Seas in ice free waters 7 ft.
.SAT...W wind 25 kt. Seas in ice free waters 8 ft.

$$

PKZ181-231330-
North and West of Nunivak Island-
346 PM AKST Mon Feb 22 2021

...BRISK WIND ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Snow.
.TUE...SE wind 20 kt.
.TUE NIGHT...E wind 25 kt.
.WED...E wind 20 kt.
.WED NIGHT...N wind 15 kt.
.THU THROUGH FRI...E wind 20 kt.
.SAT...NW wind 25 kt.

$$

PKZ185-231330-
Saint Matthew Island Waters-
346 PM AKST Mon Feb 22 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY...

.TONIGHT...E wind 35 kt. Seas in ice free waters 13 ft. Heavy
freezing spray. Snow.
.TUE...E wind 30 kt. Seas in ice free waters 11 ft. Heavy freezing
spray.
.TUE NIGHT...E wind 30 kt. Seas in ice free waters 10 ft. Freezing
spray.
.WED AND WED NIGHT...NE wind 30 kt. Seas in ice free waters 7 ft.
.THU THROUGH FRI...NE wind 35 kt. Seas in ice free waters 14 ft.
.SAT...N wind 30 kt. Seas in ice free waters 13 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
353 PM AKST Sat Feb 20 2021

.ANALYSIS AND UPPER LEVELS...

The weather setup today is high pressure and very cold temperatures
over mainland AK, while low pressure and unsettled weather exists
in the Gulf of Alaska and the Aleutian Islands. Satellite shows a
broad, elongated area of low pressure stretching from near Kodiak
northeast across the Gulf. This low is providing continued light
snow for Kodiak Island. This low is also pushing a band of mid-
level cloud cover into Southcentral AK. A more compact low is
spinning slowly east across the Aleutians, bringing a mix of rain
and snow to that area. Interestingly on satellite, the very cold
temperatures associated with high pressure over mainland AK are
depicted on Infrared. These surface temperatures are showing up
because they meet the temperature threshold normally reserved for
cold cloud tops (what we normally use IR to look at) but in this
case surface temperatures are cold enough to show as well. Clearly,
winter is still firmly entrenched.

&&

.MODEL DISCUSSION...

Models are doing well overall in the short term. This latest run
shows models to be handling the low near Kodiak better. However,
there remains some disagreement on how far north precipitation
will reach as this low tracks across the Gulf. Right now, light
snow along the immediate coastline of Southcentral AK looks like
a safe bet. Beyond that, models are locked on well to the weather
so confidence is high for the short term.

&&

.AVIATION...

PANC...VFR conditions and light winds will persist.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3...Saturday
Afternoon through Tuesday)...

A weakening front is currently pushing inland bringing mainly
clouds. However, some light snow will fall across the Kenai
Peninsula towards Prince William Sound with a light dusting of
snow in a few lower elevation areas. A low and frontal system
currently moving east of Kodiak Island will track northeast near
Yakutat by early Sunday morning and weaken. This will bring light
snow to Kodiak Island through this evening with another inch or
so ending before midnight, while light rain and snow may fall near
Cordova tonight. As this low pushes east outflow winds will
increase tonight and continue through Monday. These stronger
winds will continue to cause periods of heavy freezing spray over
parts of Cook Inlet and the Barren Islands. Otherwise, cold
temperatures will continue across most of Southcentral north of
the coast, with single digits to below zero temperatures.

Sunday into Monday the moisture from the front will bring some
light snow to the Copper River Basin with 1 to 4 inches of light
snow possible through Monday.

Sunday night and Monday a shortwave trough will swing out of
Southwestern Alaska. This will bring a chance of snow from Homer
northward towards Anchorage with a dusting of snow possible.
Worst case near an inch of snow could fall, however with the dry
atmosphere think it is most likely to be a dusting. There could be
some blowing snow early Monday morning around the Homer Bluff.

Monday night and Tuesday a ridge will pass across the area with
drier conditions before another low pressure system enters the
Gulf late Tuesday and Wednesday with a more active pattern ahead
by the middle of next week for Southcentral.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 3: This
afternoon through Tuesday evening)...

Light snow is expected to continue for eastern Bristol Bay (i.e.
King Salmon, Egegik, Iliamna, Igiugig, and Dillingham) through
this evening. Light snow will then taper off to flurries and end
from west to east. Areas furthest east will still have some
flakes into the early morning on Sunday due to some upslope
against the Alaska Range as the upper level trough lifts through.
Generally up to 1 inch is expected for many of these areas through
early morning Sunday with just a coating to as much as a few
tenths of an inch near Dillingham.

The remainder of Southwest will remain quiet but will turn even
colder for tonight through Monday evening. One potent upper level
shortwave will move through tonight with another one for Sunday
night which will bring in reinforcing shots of arctic air.
Temperatures across the Kuskokwim Delta and Kuskokwim Valley are
expected to be in the negative teens to negative 20s below zero
both tonight and Sunday night. With the winds being generally
light and under 5-10 mph, wind chills will be around 30 to 35
degrees below zero with a couple readings maybe as low as 37 or 38
degrees below zero but don't think these will reach the Wind
Chill Advisory criteria. As a result, the Wind Chill Advisory was
cancelled for tonight, especially because of the diminishing
winds and criteria wasn't met last night.

Lastly, the next big weather system will be a front moving towards
the area from the Bering Sea Monday evening. This front is
expected to bring a widespread snowfall to much of Southwest as
the arctic high retreats back to the north. There may be some
areas of blowing snow mainly for Nunivak Island and the immediate
Kuskokwim Delta coastline (i.e. Kipnuk and Toksook Bay to Hooper
Bay). However, this is expected to be relatively brief Monday
evening into early Tuesday especially as the front will be
weakening as it approaches the coastline. Right now, it appears
that this front will bring a fairly substantial snowfall to the
Kuskokwim Delta Monday evening through Tuesday with the potential
for a heavy accumulation (in excess of 6 inches). One other thing
to mention is that this is expected to be a somewhat long
duration event leading to the 6 inch accumulation over greater
than 12 hours. Elsewhere across Southwest looks to be a general 3
to 6 inch event.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 3: This
afternoon through Tuesday evening)...

An active weather pattern is expected to continue for the Bering
Sea for the duration of the forecast period as a broad upper
level low remains in place. A storm system currently positioned
just north of Adak will continue moving off to the east and into
the North Pacific east of Dutch Harbor Sunday afternoon. Latest
ASCAT data showed gale force winds mainly on the Pacific side of
the Aleutian Island Chain. Therefore, the winds were updated to
reflect this low as it was stronger than projected yesterday.
Mainly expect a mix of rain and snow along the Aleutian Chain as
this system moves through.

Also, expect heavy freezing spray near the ice edge to continue
through the forecast period as the same general pattern remains in
place.

Lastly, another potent gale force storm system will move into the
western Aleutian Island Chain beginning Sunday afternoon. This
system is expected to traverse the Bering and the Aleutian Island
Chain the remainder of the forecast period bringing mainly rain to
much of the eastern Aleutians due to the warm air that will be
brought north with the system. The Pribilofs will be closer to
where enough cold air may hang on to keep it all snow but some
rain may mix for a time especially Monday afternoon.

&&

.MARINE (Days 3 through 5: Tuesday through Thursday)...

Bering Sea: A low continues to track into the Eastern Bering by
Thu. Models agree, so confidence is good. Widespread small craft
winds and waves wrap the low through Thu. Wave heights to 21 feet
on the Pacific side, 16 feet in the Eastern Bering, subsiding
through Thu. A new low and front enters the Western Bering late
Tue and moves to the Central Bering by Thu. Widespread high end
small craft winds with areas of gale force winds wrap this low
through Thu. Wave heights to 33 feet on the Pacific side, 23 feet
on the Bering side through Thu.

Gulf of Alaska: A well developed low and front move over the Gulf
for Wed and Thu. Models vary, but confidence is good. Widespread
high end small craft winds and waves with areas of high end gale
force winds wrap the low through Thu. Wave heights building to 20
feet for Thu.

&&

.LONG TERM FORECAST (Days 4 through 7/Wednesday through Saturday)...

The long-term looks to be active, with the upper level synoptic
flow showing a more zonal pattern for our forecast area. A series
of troughs and ridges move through until a deeper longwave trough
sets up of the Bering late in the week. A ridge also sets up over
mainland AK ahead of it. Models differ on the placement and
strength of both, but all are in agreement that this general
pattern sets up.

On the surface, we start out midweek with a low somewhere in the
Eastern Bering and a low somewhere near the Southwest Gulf. Models
have a pretty big spread on where both setup, so low confidence on
the specifics of the forecast in the long-term. Moving through
the period, a series of weak lows look to exist in the Bering and
a low moves through the Gulf. The mainland looks quiet. Beyond
that, we can't discern much. Overall, moderate confidence in the
weather pattern. We know it will be active but that's about it for
now.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning 119 120 130 131 139 150 172 174 176 178.
 Heavy Freezing Spray Warning 127 130 131 139 160 180 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BB
SOUTHCENTRAL ALASKA...RC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MV
MARINE/LONG TERM...MK/BB