Heavy Freezing Spray Warning 84, NWS Anchorage, AK

987 
FZAK52 PAFC 280056
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 PM AKST Sat Feb 27 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.

PKZ199-281345-
356 PM AKST Sat Feb 27 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 mb 500 nm Southwest of Attu moves to 245 nm Northwest of 
Attu at 943 mb Sun morning then shifts to 115 nm West of St Paul 
Island at 966 mb for Mon afternoon. Its front moves across the 
Aleutians and Bering into Southwest Alaska through Mon afternoon.

$$

PKZ150-281345-
South of the AK Peninsula Sitkinak to Castle Cape-
356 PM AKST Sat Feb 27 2021

...STORM WARNING THROUGH SUNDAY...

.TONIGHT...NW wind 50 kt. Seas 20 ft. Freezing spray.
.SUN...NW wind 50 kt. Seas 20 ft. Freezing spray.
.SUN NIGHT...SW wind 30 kt increasing to 40 kt after midnight.
Seas 16 ft. Freezing spray. Rain and snow.
.MON...W wind 45 kt. Seas 21 ft.
.MON NIGHT...W wind 35 kt. Seas 22 ft.
.TUE...W wind 40 kt. Seas 25 ft.
.WED...NW wind 40 kt. Seas 18 ft.
.THU...NW wind 30 kt. Seas 13 ft.

$$

PKZ155-281345-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 PM AKST Sat Feb 27 2021

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 15 ft. Freezing spray along the coast.
.SUN...W wind 30 kt. From the Shumagin Islands E, NW wind 40 kt
becoming W 30 kt in the afternoon. Seas 14 ft.
.SUN NIGHT...S wind 40 kt. Seas 21 ft. Rain and snow.
.MON...W wind 40 kt. Seas 27 ft.
.MON NIGHT...W wind 50 kt. Seas 32 ft.
.TUE...NW wind 45 kt. Seas 31 ft.
.WED...NW wind 45 kt. Seas 20 ft.
.THU...W wind 30 kt. Seas 11 ft.

$$

PKZ160-281345-
Bristol Bay-
356 PM AKST Sat Feb 27 2021

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

.TONIGHT...NW wind 40 kt. Seas in ice free waters 11 ft. Heavy
freezing spray.
.SUN...NW wind 35 kt diminishing to 25 kt in the afternoon. Seas
in ice free waters 11 ft subsiding to 7 ft in the afternoon. Heavy 
freezing spray.
.SUN NIGHT...E wind 25 kt increasing to 35 kt after midnight. Seas
in ice free waters 6 ft. Heavy freezing spray. Snow.
.MON AND MON NIGHT...SW wind 30 kt. Seas in ice free waters 11 ft.
.TUE THROUGH WED...NW wind 35 kt. Seas in ice free waters 11 ft.
.THU...NE wind 15 kt. Seas in ice free waters 5 ft.

$$

PKZ165-281345-
Port Heiden to Cape Sarichef-
356 PM AKST Sat Feb 27 2021

...GALE WARNING THROUGH SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND SUNDAY...

.TONIGHT...NW wind 35 kt. Seas 12 ft. Heavy freezing spray.
.SUN...W wind 20 kt becoming SE 35 kt in the afternoon. From Port
Moller E, NW wind 30 kt becoming SW 20 kt in the afternoon. Seas
11 ft subsiding to 7 ft in the afternoon. Heavy freezing spray.
.SUN NIGHT...W wind 40 kt. From Port Moller E, SE wind 30 kt
becoming SW after midnight. Seas 10 ft building to 16 ft after
midnight. Freezing spray. Snow.
.MON...SW wind 40 kt. Seas 28 ft.
.MON NIGHT...SW wind 50 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 31 ft.
.WED...NW wind 40 kt. Seas 22 ft.
.THU...W wind 25 kt. Seas 16 ft.

$$

PKZ170-281345-
Cape Sarichef to Nikolski Bering Side-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SUN...S wind 45 kt. From Unalaska E, S wind 20 kt increasing to
40 kt in the afternoon. Seas 8 ft building to 14 ft in the
afternoon. Widespread rain showers and snow.
.SUN NIGHT...SW wind 35 kt increasing to 45 kt after midnight.
Seas 15 ft building to 23 ft after midnight. Snow showers and rain 
showers.
.MON...SW wind 50 kt. Seas 40 ft.
.MON NIGHT...W wind 55 kt. Seas 44 ft.
.TUE...NW wind 45 kt. Seas 33 ft.
.WED...NW wind 40 kt. Seas 23 ft.
.THU...SW wind 30 kt. Seas 17 ft.

$$

PKZ171-281345-
Unalaska Bay-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas 7
ft subsiding to 2 ft after midnight.
.SUN...S wind 20 kt increasing to 30 kt in the afternoon. Seas 3
ft building to 5 ft in the afternoon. Rain with snow.
.SUN NIGHT...SW wind 35 kt. Seas 5 ft. Widespread rain and snow
showers.
.MON...SW wind 45 kt. Seas 6 ft.
.MON NIGHT...W wind 50 kt. Seas 8 ft.
.TUE...NW wind 45 kt. Seas 20 ft.
.WED...NW wind 30 kt. Seas 13 ft.
.THU...SW wind 20 kt. Seas 3 ft.

$$

PKZ172-281345-
Cape Sarichef to Nikolski Pacific Side-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 14 ft.
.SUN...SW wind 30 kt becoming S 40 kt in the afternoon. Seas 10 ft
building to 17 ft in the afternoon. Rain.
.SUN NIGHT...SW wind 45 kt. Seas 24 ft. Snow showers and rain.
.MON...SW wind 45 kt. Seas 33 ft.
.MON NIGHT...W wind 50 kt. Seas 35 ft.
.TUE...NW wind 45 kt. Seas 29 ft.
.WED...NW wind 40 kt. Seas 18 ft.
.THU...SW wind 25 kt. Seas 10 ft.

$$

PKZ173-281345-
Nikolski to Seguam Island Bering Side-
356 PM AKST Sat Feb 27 2021

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...W wind 20 kt becoming S 30 kt after midnight. Seas 11
ft.
.SUN...S wind 45 kt. Seas 20 ft. Rain.
.SUN NIGHT...SW wind 50 kt. Seas 20 ft building to 29 ft after
midnight. Snow showers.
.MON...W wind 55 kt. Seas 43 ft.
.MON NIGHT...W wind 50 kt. Seas 43 ft.
.TUE...NW wind 40 kt. Seas 29 ft.
.WED...W wind 35 kt. Seas 19 ft.
.THU...SW wind 30 kt. Seas 16 ft.

$$

PKZ174-281345-
Nikolski to Seguam Island Pacific Side-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 15 ft.
.SUN...S wind 45 kt. Seas 21 ft. Widespread rain showers.
.SUN NIGHT...SW wind 45 kt. Seas 23 ft building to 32 ft after
midnight. Snow showers.
.MON...W wind 50 kt. Seas 39 ft.
.MON NIGHT...W wind 45 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 30 ft.
.WED...W wind 35 kt. Seas 18 ft.
.THU...SW wind 30 kt. Seas 12 ft.

$$

PKZ175-281345-
Seguam Island to Adak Bering Side-
356 PM AKST Sat Feb 27 2021

...STORM WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt becoming S 45 kt after midnight. Seas
12 ft. Snow.
.SUN...S wind 50 kt. Seas 20 ft. Widespread rain showers and snow.
.SUN NIGHT...SW wind 55 kt. Seas 27 ft building to 38 ft after
midnight. Snow showers.
.MON...W wind 55 kt. Seas 42 ft.
.MON NIGHT...W wind 50 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 24 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.THU...SW wind 35 kt. Seas 16 ft.

$$

PKZ176-281345-
Seguam Island to Adak Pacific Side-
356 PM AKST Sat Feb 27 2021

...STORM WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt becoming S 45 kt after midnight. Seas
16 ft. Rain.
.SUN...S wind 55 kt becoming SW 45 kt in the afternoon. Seas 26
ft. Rain.
.SUN NIGHT...SW wind 50 kt. Seas 32 ft building to 40 ft after
midnight. Snow showers.
.MON...W wind 50 kt. Seas 40 ft.
.MON NIGHT...W wind 45 kt. Seas 32 ft.
.TUE...NW wind 40 kt. Seas 25 ft.
.WED THROUGH THU...SW wind 30 kt. Seas 13 ft.

$$

PKZ177-281345-
Adak to Kiska-
356 PM AKST Sat Feb 27 2021

...STORM WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S wind 45 kt becoming SE 60 kt after midnight. Seas 15
ft building to 27 ft after midnight. Widespread rain showers and 
snow.
.SUN...SW wind 55 kt. Seas 34 ft. Snow showers and widespread rain
showers.
.SUN NIGHT...SW wind 60 kt. Seas 46 ft. Snow showers.
.MON...W wind 55 kt. Seas 42 ft.
.MON NIGHT...W wind 40 kt. Seas 27 ft.
.TUE...W wind 40 kt. Seas 22 ft.
.WED...S wind 35 kt. Seas 14 ft.
.THU...SW wind 35 kt. Seas 19 ft.

$$

PKZ178-281345-
Kiska to Attu-
356 PM AKST Sat Feb 27 2021

...HURRICANE FORCE WIND WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...S wind 60 kt. Seas 30 ft. Widespread rain and snow
showers.
.SUN...SW wind 65 kt. Bering side, seas 30 ft building to 38 ft in
the afternoon. Pacific side, seas 35 ft building to 46 ft in the
afternoon. Snow showers.
.SUN NIGHT...W wind 65 kt. Seas 49 ft. Snow showers.
.MON...W wind 55 kt. Seas 37 ft.
.MON NIGHT...W wind 40 kt. Seas 24 ft.
.TUE...SW wind 35 kt. Seas 21 ft.
.WED...S wind 40 kt. Seas 25 ft.
.THU...SW wind 40 kt. Seas 25 ft.

$$

PKZ179-281345-
Pribilof Islands Near Shore Waters-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TONIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 7 ft. Freezing spray.
.SUN...SE wind 30 kt increasing to 40 kt in the afternoon. Seas 7
ft building to 15 ft in the afternoon. Heavy freezing spray. 
Widespread snow showers.
.SUN NIGHT...SW wind 35 kt. Seas 17 ft building to 23 ft after
midnight. Widespread snow showers.
.MON...SW wind 40 kt. Seas 34 ft.
.MON NIGHT...NW wind 40 kt. Seas 37 ft.
.TUE...NW wind 35 kt. Seas 23 ft.
.WED...W wind 30 kt. Seas 16 ft.
.THU...SW wind 30 kt. Seas 17 ft.

$$

PKZ180-281345-
Kuskokwim Delta and Etolin Strait-
356 PM AKST Sat Feb 27 2021

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

.TONIGHT...NW wind 30 kt. Seas in ice free waters 8 ft. Heavy
freezing spray.
.SUN...N wind 25 kt becoming E in the afternoon. Seas in ice free
waters 7 ft. Heavy freezing spray.
.SUN NIGHT...E wind 40 kt becoming S 30 kt after midnight. Seas in
ice free waters 10 ft. Heavy freezing spray. Snow.
.MON AND MON NIGHT...SW wind 30 kt. Seas in ice free waters 16 ft.
.TUE THROUGH WED...NW wind 40 kt. Seas in ice free waters 14 ft.
.THU...SE wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ181-281345-
North and West of Nunivak Island-
356 PM AKST Sat Feb 27 2021

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 20 kt.
.SUN...N wind 15 kt becoming E 30 kt in the afternoon.
.SUN NIGHT...E wind 40 kt diminishing to 30 kt after midnight.
Snow.
.MON...E wind 25 kt.
.MON NIGHT...N wind 30 kt.
.TUE THROUGH WED...N wind 35 kt.
.THU...SE wind 20 kt.

$$

PKZ185-281345-
Saint Matthew Island Waters-
356 PM AKST Sat Feb 27 2021

...STORM WARNING SUNDAY AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E of Saint Matthew Island, NW wind 20 kt. W of Saint
Matthew Island, N wind 15 kt becoming NE 30 kt after midnight.
Seas in ice free waters 5 ft. Heavy freezing spray.
.SUN...E of Saint Matthew Island, E wind 30 kt increasing to 45 kt
in the afternoon. W of Saint Matthew Island, E wind 50 kt
increasing to 60 kt in the afternoon. Seas in ice free waters 12 ft 
building to 24 ft in the afternoon. Heavy freezing spray. Snow.
.SUN NIGHT...E of Saint Matthew Island, E wind 50 kt diminishing
to 30 kt after midnight. W of Saint Matthew Island, E wind 55 kt 
diminishing to 45 kt after midnight. Seas in ice free waters 24 ft. 
Heavy freezing spray. Widespread snow showers.
.MON...NE wind 45 kt. Seas in ice free waters 28 ft.
.MON NIGHT...N wind 35 kt. Seas in ice free waters 21 ft.
.TUE...NW wind 30 kt. Seas in ice free waters 12 ft.
.WED...E wind 30 kt. Seas in ice free waters 18 ft.
.THU...S wind 30 kt. Seas in ice free waters 23 ft.

$$

082 
FZAK52 PAFC 281239
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
339 AM AKST Sun Feb 28 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.

PKZ199-010145-
339 AM AKST Sun Feb 28 2021

.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...A deepening 962 mb low 
130 nm northwest of Shemya moves across the central Bering to 100 nm 
east of Saint Paul Island at 975 mb by Tue morning. Its front moves 
across the Aleutians and Bering Sea into Southwest Alaska through Mon
morning. 

$$

PKZ150-010145-
South of the AK Peninsula Sitkinak to Castle Cape-
339 AM AKST Sun Feb 28 2021

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING MONDAY...

.TODAY...NW wind 50 kt. Seas 20 ft. Freezing spray.
.TONIGHT...SW wind 30 kt increasing to 40 kt after midnight. Seas
16 ft. Freezing spray. Rain and snow.
.MON...W wind 45 kt diminishing to 35 kt in the afternoon. Seas
21 ft. Heavy freezing spray. Snow showers and rain.
.MON NIGHT...W wind 35 kt. Seas 22 ft.
.TUE...W wind 40 kt. Seas 25 ft.
.WED...NW wind 35 kt. Seas 17 ft.
.THU...W wind 30 kt. Seas 10 ft.

$$

PKZ155-010145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
339 AM AKST Sun Feb 28 2021

...GALE WARNING THROUGH MONDAY...

.TODAY...W wind 30 kt. From the Shumagin Islands E, NW wind 40 kt
becoming W 30 kt in the afternoon. Seas 14 ft.
.TONIGHT...S wind 40 kt. Seas 21 ft. Rain and snow.
.MON...W wind 40 kt. Seas 27 ft. Snow showers.
.MON NIGHT...W wind 50 kt. Seas 32 ft.
.TUE...NW wind 45 kt. Seas 31 ft.
.WED...NW wind 40 kt. Seas 20 ft.
.THU...W wind 25 kt. Seas 12 ft.

$$

PKZ160-010145-
Bristol Bay-
339 AM AKST Sun Feb 28 2021

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

.TODAY...NW wind 35 kt diminishing to 25 kt in the afternoon. Seas
in ice free waters 11 ft subsiding to 7 ft in the afternoon. 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.
.MON...W wind 30 kt. Seas in ice free waters 10 ft. Heavy freezing
spray. Snow.
.MON NIGHT...SW wind 30 kt. Seas in ice free waters 12 ft.
.TUE...NW wind 35 kt. Seas in ice free waters 11 ft.
.WED...NW wind 30 kt. Seas in ice free waters 10 ft.
.THU...E wind 15 kt. Seas in ice free waters 4 ft.

$$

PKZ165-010145-
Port Heiden to Cape Sarichef-
339 AM AKST Sun Feb 28 2021

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

.TODAY...W wind 20 kt becoming SE 35 kt in the afternoon. From
Port Moller E, NW wind 30 kt becoming SW 20 kt in the afternoon. 
Seas 11 ft subsiding to 7 ft in the afternoon. Freezing spray.
.TONIGHT...W wind 40 kt. From Port Moller E, SE wind 30 kt
becoming SW after midnight. Seas 10 ft building to 16 ft after 
midnight. Freezing spray. Snow and widespread rain showers.
.MON...SW wind 40 kt. Seas 23 ft building to 31 ft in the afternoon. 
From Port Moller E, seas 20 ft. Heavy freezing spray. Snow showers.
.MON NIGHT...SW wind 50 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 31 ft.
.WED...NW wind 40 kt. Seas 21 ft.
.THU...SW wind 20 kt. Seas 18 ft.

$$

PKZ170-010145-
Cape Sarichef to Nikolski Bering Side-
339 AM AKST Sun Feb 28 2021

...STORM WARNING MONDAY...

.TODAY...S wind 45 kt. From Unalaska E, S wind 20 kt increasing to
40 kt in the afternoon. Seas 8 ft building to 14 ft in the afternoon. 
Widespread rain showers and snow.
.TONIGHT...SW wind 35 kt increasing to 45 kt after midnight. Seas
15 ft building to 23 ft after midnight. Snow showers and rain showers.
.MON...SW wind 50 kt. Seas 32 ft building to 40 ft in the
afternoon. Snow showers.
.MON NIGHT...W wind 55 kt. Seas 44 ft.
.TUE...NW wind 45 kt. Seas 33 ft.
.WED...NW wind 40 kt. Seas 23 ft.
.THU...SW wind 30 kt. Seas 19 ft.

$$

PKZ171-010145-
Unalaska Bay-
339 AM AKST Sun Feb 28 2021

...STORM WARNING MONDAY...

.TODAY...S wind 20 kt increasing to 30 kt in the afternoon. Seas
3 ft building to 5 ft in the afternoon. Rain with snow.
.TONIGHT...SW wind 35 kt. Seas 5 ft. Widespread rain and snow
showers. 
.MON...SW wind 35 kt increasing to 50 kt in the afternoon. Seas 5
ft building to 8 ft in the afternoon. Widespread snow showers.
.MON NIGHT...W wind 55 kt. Seas 9 ft.
.TUE...NW wind 45 kt. Seas 20 ft.
.WED...NW wind 30 kt. Seas 16 ft.
.THU...SW wind 25 kt. Seas 4 ft.

$$

PKZ172-010145-
Cape Sarichef to Nikolski Pacific Side-
339 AM AKST Sun Feb 28 2021

...GALE WARNING THROUGH MONDAY...

.TODAY...SW wind 30 kt becoming S 40 kt in the afternoon. Seas 10
ft building to 17 ft in the afternoon. Rain.
.TONIGHT...SW wind 45 kt. Seas 24 ft. Snow showers and rain.
.MON...SW wind 45 kt. Seas 33 ft. Snow showers.
.MON NIGHT...W wind 50 kt. Seas 35 ft.
.TUE...NW wind 45 kt. Seas 29 ft.
.WED...NW wind 40 kt. Seas 18 ft.
.THU...SW wind 25 kt. Seas 14 ft.

$$

PKZ173-010145-
Nikolski to Seguam Island Bering Side-
339 AM AKST Sun Feb 28 2021

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...S wind 45 kt. Seas 20 ft. Rain.
.TONIGHT...SW wind 50 kt. Seas 20 ft building to 29 ft after
midnight. Snow showers.
.MON...W wind 55 kt. Seas 43 ft. Snow showers.
.MON NIGHT...W wind 50 kt. Seas 43 ft.
.TUE...NW wind 40 kt. Seas 29 ft.
.WED THROUGH THU...W wind 30 kt. Seas 19 ft.

$$

PKZ174-010145-
Nikolski to Seguam Island Pacific Side-
339 AM AKST Sun Feb 28 2021

...STORM WARNING MONDAY...

.TODAY...S wind 30 kt increasing to 45 kt. Seas 21 ft. Widespread 
rain showers.
.TONIGHT...SW wind 45 kt. Seas 23 ft building to 32 ft after
midnight. Snow showers.
.MON...SW wind 50 kt. Seas 39 ft. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 30 ft.
.WED...W wind 35 kt. Seas 19 ft.
.THU...W wind 30 kt. Seas 16 ft.

$$

PKZ175-010145-
Seguam Island to Adak Bering Side-
339 AM AKST Sun Feb 28 2021

...STORM WARNING THROUGH MONDAY...

.TODAY...S wind 50 kt. Seas 20 ft. Widespread rain showers and
snow.
.TONIGHT...SW wind 55 kt. Seas 27 ft building to 38 ft after
midnight. Snow showers.
.MON...W wind 55 kt. Seas 42 ft. Snow showers.
.MON NIGHT...W wind 50 kt. Seas 37 ft.
.TUE...NW wind 40 kt. Seas 24 ft.
.WED...S wind 35 kt. Seas 14 ft.
.THU...W wind 35 kt. Seas 19 ft.

$$

PKZ176-010145-
Seguam Island to Adak Pacific Side-
339 AM AKST Sun Feb 28 2021

...STORM WARNING THROUGH MONDAY...

.TODAY...S wind 55 kt becoming SW 45 kt in the afternoon. Seas
26 ft. Rain.
.TONIGHT...SW wind 50 kt. Seas 32 ft building to 40 ft after
midnight. Snow showers.
.MON...W wind 50 kt. Seas 40 ft. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 32 ft.
.TUE...NW wind 40 kt. Seas 25 ft.
.WED...S wind 30 kt. Seas 13 ft.
.THU...W wind 30 kt. Seas 15 ft.

$$

PKZ177-010145-
Adak to Kiska-
339 AM AKST Sun Feb 28 2021

...STORM WARNING THROUGH MONDAY...

.TODAY...SW wind 55 kt. Seas 34 ft. Snow showers and widespread
rain showers.
.TONIGHT...SW wind 60 kt. Seas 46 ft. Snow showers.
.MON...W wind 55 kt. Seas 42 ft subsiding to 35 ft in the
afternoon. Snow showers.
.MON NIGHT...W wind 40 kt. Seas 27 ft.
.TUE...W wind 40 kt. Seas 22 ft.
.WED...S wind 35 kt. Seas 16 ft.
.THU...SW wind 35 kt. Seas 19 ft.

$$

PKZ178-010145-
Kiska to Attu-
339 AM AKST Sun Feb 28 2021

...HURRICANE FORCE WIND WARNING THROUGH TONIGHT...

.TODAY...SW wind 65 kt. Bering side, seas 30 ft building to 38 ft
in the afternoon. Pacific side, seas 35 ft building to 46 ft in the 
afternoon. Snow showers.
.TONIGHT...W wind 65 kt. Seas 49 ft. Snow showers.
.MON...W wind 55 kt diminishing to 40 kt in the afternoon. Seas
37 ft subsiding to 27 ft in the afternoon. Snow showers.
.MON NIGHT...W wind 40 kt. Seas 24 ft.
.TUE...SW wind 35 kt. Seas 21 ft.
.WED THROUGH THU...SW wind 40 kt. Seas 26 ft.

$$

PKZ179-010145-
Pribilof Islands Near Shore Waters-
339 AM AKST Sun Feb 28 2021

...GALE WARNING THROUGH MONDAY...

.TODAY...SE wind 30 kt increasing to 40 kt in the afternoon. Seas
7 ft building to 15 ft in the afternoon. Freezing spray.
Widespread snow showers.
.TONIGHT...SW wind 35 kt. Seas 17 ft building to 23 ft after
midnight. Snow showers.
.MON...SW wind 40 kt. Seas 34 ft. Snow showers.
.MON NIGHT...NW wind 40 kt. Seas 37 ft.
.TUE...NW wind 35 kt. Seas 23 ft.
.WED...NW wind 30 kt. Seas 16 ft.
.THU...SW wind 30 kt. Seas 17 ft.

$$

PKZ180-010145-
Kuskokwim Delta and Etolin Strait-
339 AM AKST Sun Feb 28 2021

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

.TODAY...N wind 25 kt becoming E in the afternoon. Seas in ice
free waters 7 ft. Heavy freezing spray.
.TONIGHT...E wind 40 kt becoming S 30 kt after midnight. Seas in
ice free waters 10 ft. Heavy freezing spray. Snow.
.MON...SW wind 30 kt. Seas in ice free waters 15 ft. Heavy
freezing spray. Snow.
.MON NIGHT...SW wind 30 kt. Seas in ice free waters 17 ft.
.TUE...NW wind 40 kt. Seas in ice free waters 15 ft.
.WED...NW wind 40 kt. Seas in ice free waters 11 ft.
.THU...SE wind 25 kt. Seas in ice free waters 8 ft.

$$

PKZ181-010145-
North and West of Nunivak Island-
339 AM AKST Sun Feb 28 2021

...GALE WARNING TONIGHT...

.TODAY...N wind 15 kt becoming E 30 kt in the afternoon.
.TONIGHT...E wind 40 kt diminishing to 30 kt after midnight.
Snow.
.MON...E wind 25 kt. Snow showers.
.MON NIGHT...N wind 30 kt.
.TUE...NW wind 35 kt.
.WED...N wind 30 kt.
.THU...SE wind 30 kt.

$$

PKZ185-010145-
Saint Matthew Island Waters-
339 AM AKST Sun Feb 28 2021

...STORM WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...E of Saint Matthew Island, E wind 30 kt increasing to 45
kt in the afternoon. W of Saint Matthew Island, E wind 50 kt 
increasing to 60 kt in the afternoon. Seas in ice free waters 12 ft 
building to 24 ft in the afternoon. Heavy freezing spray. Snow.
.TONIGHT...E of Saint Matthew Island, E wind 50 kt diminishing to
30 kt after midnight. W of Saint Matthew Island, E wind 55 kt
diminishing to 45 kt after midnight. Seas in ice free waters 24
ft. Heavy freezing spray. Widespread snow showers.
.MON...E wind 30 kt E of Saint Matthew Island...NE 45 kt W of
Saint Matthew Island. Seas in ice free waters 28 ft. Heavy freezing 
spray. Snow showers.
.MON NIGHT...N wind 35 kt. Seas in ice free waters 21 ft.
.TUE...NW wind 30 kt. Seas in ice free waters 12 ft.
.WED...E wind 40 kt. Seas in ice free waters 20 ft.
.THU...S wind 35 kt. Seas in ice free waters 22 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
444 PM AKST Fri Feb 26 2021

.ANALYSIS AND UPPER LEVELS...

Weak low pressure moving into Southcentral is creating a wintry
mix of weather. Most locations are seeing snow, though freezing
drizzle is present on the Kenai Peninsula and was present in
Anchorage this morning. So far, it has remained cold enough in
Anchorage to remain snow since then. The center of this low
affecting Southcentral is still located back in Southwest AK,
also providing a wintry mix of precipitation there. Temperatures
are warm enough in Southwest AK for more of a rain/snow mix there.

All of this is being supported by an upper level trough and 500MB
closed low over the Bering Sea. It is embedded in a zonal pattern
moving across our forecast area. However, this trough is beginning
to dig south and the pattern is becoming more amplified.

&&

.MODEL DISCUSSION...

Synoptically models are in good agreement to start the short term.
They do begin to diverge in placement of features over the
weekend, notably with an upper level low moving along the north
gulf coast. The surface low associated with this seems to be
handled better, but some minor disagreement exists there as well.
On a more local scale, models are having difficulty handling light
precipitation moving into Southcentral AK. So, adjustments to the
forecast have been necessary today.

&&

.AVIATION...
PANC...MVFR conditions will be present through the TAF period.
Low pressure in the area will make for intermittent periods of
snow, reducing visibility to MVFR at times with low-level cloud
cover remaining in place. Additionally, turnagain arm winds are
expected to develop this evening. There remain some questions as
to whether or not they will work their way into the airfield. For
now, it looks like they will stay aloft, so low-level wind shear
was added into the TAF.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Today
through Monday afternoon)...

Active weather will continue across Southcentral through mid-
week. A weak warm front combined with an upper ridge is tracking
across the region. The freezing line is currently located just
north of Anchor Point. It is difficult to determine how far north
this will get. Kenai forecast soundings show a saturated
isothermal layer between the surface and approximately 900 mb
before cooling aloft. This supports the continued potential for
freezing drizzle and as such a Winter Weather Advisory has been
issued through Saturday afternoon. While much of the precipitation
is expected to fall as all snow, a slight temperature deviation
at or slightly above the surface could lead to more freezing
drizzle or even brief freezing rain. In any case, travel between
the Seward/Sterling Highway junction and Clam Gulch may be
difficult at times.

Farther north, temperatures will peak near freezing in Anchorage
and the Matanuska Valley. Light snow will persist through Saturday
with the heaviest occurring overnight tonight into early Saturday
morning. Gusty southwesterly winds are likely near Turnagain Arm
and the Anchorage Hillside. Depending on how far north the front
gets, winds may briefly turn into town, however as of now it is
expected that they remain confined to the coast. Higher snow
totals are likely across the Susitna Valley and thus the Winter
Weather Advisory remains in effect there through Saturday evening.
The northern Copper River Basin will also see similar
accumulations, mainly in the Paxson area and the Advisory remains
there as well through the same time period.

Snow showers will continue over much of the region through Sunday,
though localized downsloping may occur. Several additional inches
are possible in the Copper River Basin. A low tracking into the
Gulf will increase northwesterly outflow winds though the day,
particularly in the Whittier area. This will lead to blowing snow
continuing after the snow has ended. Travel through Isabel Pass
may be difficult. Much cooler temperatures will result as well.
An upper ridge will lead to a brief lull on Monday morning before
a similar system enters the Gulf by the afternoon.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Friday
Afternoon through Monday)...

An upper level shortwave over the eastern Bering Sea is supporting
a low and frontal system moving onshore tonight this will bring
snow to the Kuskokwim Delta with 2 to 4 inches of snowfall. While
farther south over Bristol Bay where temperatures are above
freezing a mix of rain and snow will prevail when little if any
snow accumulations. This front will move towards the interior by
Saturday morning rain and snow ending, some patchy fog is possible
across the Bristol Bay area from Dillingham to King Salmon
Saturday morning. As the cold front pushes south and east on
Saturday cold air and northerly winds will move across the area
with temperatures dropping from north to south through the day.
Cold and dry for Sunday as northerly flow dominates.

Sunday night and Monday a strong frontal system crossing the
Bering Sea will bring increasing south to southeast flow with
warmer air pushing temperatures near freezing along coastal areas.
This will result in snow across the region with several inches
expected beginning Sunday night and continuing through Monday.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Friday
Afternoon through Monday)...

A shortwave trough and frontal system will move across the eastern
Bering tonight and move inland. Behind the cold front, cold air
advection will bring snow showers to the AKPEN and eastern
Aleutians Saturday through Sunday morning. This cold air will also
produce gusty winds across the AKPEN and eastern Aleutians with
Gales and pockets of storm force winds south of the AKPEN Saturday
night and Sunday.

Farther west a low continues to spin north of Shemya. This will
produce some high end small crafts across the northwest Bering
this evening with heavy freezing spray near and west of St Matthew
Island.

Saturday evening a strong front will move across the western
Aleutians into the Bering with high end storm force winds and
hurricane force gusts. The parent low to this front will bring
hurricane force winds across the western Aleutians Sunday through
Sunday night these will spread towards Adak and the central
Aleutians Monday with storm force winds and hurricane force
gusts.

This strong front on Sunday and Monday will create hazardous
heavy freezing spray for a good portion of northern and eastern
Bering Sea extending as far south as the Pribilofs Island and
southeast towards Bristol Bay and south of the AKPEN.

&&

.MARINE (Days 3 through 5: Monday through Wednesday)...

Bering: A well developed low and front tracks across the Bering
into Southwest Alaska for Tue. Model confidence is good, but
decreases near the end of the period. Widespread storm force winds
and waves with areas of hurricane force gusts with the wind
wrapped low and front as it moves east, diminishing from the west
Tue. Widespread gale force winds take over through Wed. Waves to
47 feet over the Aleutians and Bering, subsiding in the Eastern
Bering by Wed.

Gulf of Alaska: A low and front move across the Gulf for Tue. A
second front is hot on the heels through Wed. Confidence is good
through the forecast. Widespread high end gale force winds and
waves move across the Gulf for Mon and Tue. Gusty outflow winds
spread into the Gulf from Kachemak Bay and the Barren Islands,
down the lower Shelikof Strait and along coastal Alaska Peninsula
for Wed. Waves build to 22 feet move across the Gulf through Wed.

&&

.LONG TERM FORECAST (Days 4 through 7: Tuesday through Friday)...

The long term forecast period overall looks quieter as an Arctic
trough moves through much of the Mainland for next week. Overall,
a cold pattern is expected for this time frame as rounds of
Siberian/Arctic air move across the northern Bering and Bering
Strait across the Alaska Mainland. The pattern is expected to be
more progressive as well meaning that this cold air will be pushed
through the gaps and passes of the Alaska/Aleutian Range and down
the Alaska Peninsula to the eastern Aleutians. This doesn't look
to be the typical setup for the Southcentral gaps and passes to
really blow strongly but winds will still be on the uptick for
next week. The coldest days as of now appear to be Tuesday and
Wednesday when temperatures will be well below normal across
Southwest and Southcentral Alaska. A weak upper level ridge will
nudge its way into Southwest Alaska Thursday which may bring snow
to the Southwest areas of Alaska. However, another round of cold,
Arctic/Siberian air is lurking behind this ridge that will push
this ridge off to the south and not make much progress into
Southcentral Thursday and Friday. At most, some light snow may
occur for Kodiak and the eastern Kenai Peninsula late week though
temperatures will still remain below normal.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory 121 141 145.
		 High Wind Watch 191.
MARINE...Storm Warning 130 131 138 176-178 411 413.
		 Gale Warning 120 129 132 137 150 155 160 165 173-175
				      351 352 412.
		 Heavy Freezing Spray Warning 130 131 139 150 160 165
	 								  180 185 411 412 414.
FIRE WEATHER...NONE.

&&

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