Storm Warning 238, NWS Anchorage, AK

373 
FZAK52 PAFC 310056
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 PM AKST Wed Dec 30 2020

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.

PKZ199-311400-
356 PM AKST Wed Dec 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb on Thu afternoon, with 
the highest wave heights and winds between Shemya and Adak, and 
continues to 150 nm northeast of Attu and weakens to 936 mb on Fri
afternoon.

$$

PKZ150-311400-
South of the AK Peninsula Sitkinak to Castle Cape-
356 PM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. 
Seas 10 ft.
.THU...E wind 30 kt. Seas 13 ft building to 18 ft in the
afternoon.
.THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...E wind 30 kt. Seas 14 ft.
.FRI NIGHT...N wind 35 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 17 ft.
.SUN...W wind 15 kt. Seas 15 ft.
.MON...W wind 15 kt. Seas 11 ft.

$$

PKZ155-311400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 35 kt. Seas 20 ft.
.FRI NIGHT...W wind 30 kt. Seas 21 ft.
.SAT...SW wind 25 kt. Seas 22 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 16 ft.

$$

PKZ160-311400-
Bristol Bay-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 8 ft.
.FRI...E wind 35 kt. Seas 8 ft.
.FRI NIGHT...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 5 ft.

$$

PKZ165-311400-
Port Heiden to Cape Sarichef-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 10 ft. Rain and snow.
.FRI...S wind 35 kt. Seas 12 ft.
.FRI NIGHT...W wind 25 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 12 ft.
.MON...W wind 15 kt. Seas 7 ft.

$$

PKZ170-311400-
Cape Sarichef to Nikolski Bering Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 15 kt. Seas 7 ft.
.THU...SE wind 35 kt increasing to 50 kt in the afternoon. Seas 7
ft building to 14 ft in the afternoon. Snow.
.THU NIGHT...SE wind 45 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI AND FRI NIGHT...SW wind 25 kt. Seas 17 ft.
.SAT...S wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 10 ft.

$$

PKZ171-311400-
Unalaska Bay-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...N wind 15 kt becoming E after midnight. Seas 5 ft
subsiding to 3 ft after midnight.
.THU...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
6 ft. Snow.
.THU NIGHT...SE wind 45 kt becoming W 25 kt after midnight. Seas
7 ft subsiding to 4 ft after midnight. Snow with rain.
.FRI...SW wind 20 kt. Seas 3 ft.
.FRI NIGHT...SW wind 15 kt. Seas 2 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 3 ft.

$$

PKZ172-311400-
Cape Sarichef to Nikolski Pacific Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 30 kt increasing to 50 kt in the afternoon. 
Seas 18 ft. Snow.
.THU NIGHT...S wind 45 kt becoming W 30 kt after midnight. 
Seas 21 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 25 ft.
.FRI NIGHT...W wind 30 kt. Seas 27 ft.
.SAT...SW wind 30 kt. Seas 28 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 17 ft.

$$

PKZ173-311400-
Nikolski to Seguam Island Bering Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft.
.THU...SE wind 60 kt. Seas 18 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 30 kt. Seas 20 ft. Snow showers and rain
showers.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 20 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 11 ft.

$$

PKZ174-311400-
Nikolski to Seguam Island Pacific Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 20 kt becoming E after midnight. Seas 10 ft.
.THU...S wind 60 kt. Seas 20 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...W wind 35 kt. Seas 25 ft building to 32 ft after
midnight. Snow showers.
.FRI...SW wind 30 kt. Seas 31 ft.
.FRI NIGHT...SW wind 40 kt. Seas 35 ft.
.SAT...SW wind 30 kt. Seas 35 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-311400-
Seguam Island to Adak Bering Side-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 55 kt after midnight. 
Seas 7 ft building to 15 ft after midnight. Snow.
.THU...SE wind 65 kt becoming S 50 kt in the afternoon. 
Seas 24 ft. Snow and rain.
.THU NIGHT...SW wind 45 kt. Seas 26 ft. Snow showers.
.FRI AND FRI NIGHT...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 35 kt. Seas 25 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-311400-
Seguam Island to Adak Pacific Side-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 60 kt after midnight. Seas 10
ft building to 19 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas 33
ft. Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 41 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 36 ft.
.FRI NIGHT...SW wind 40 kt. Seas 39 ft.
.SAT...SW wind 35 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 21 ft.
.MON...W wind 30 kt. Seas 21 ft.

$$

PKZ177-311400-
Adak to Kiska-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 50 kt increasing to 65 kt after midnight. Seas
13 ft building to 26 ft after midnight. Snow and rain.
.THU...S wind 65 kt. Bering side, seas 27 ft building to 40 ft in
the afternoon. Pac side, seas 39 ft building to 53 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 65 kt diminishing to 55 kt after midnight.
Seas 43 ft Bering side...51 ft Pac side. Snow.
.FRI...SW wind 50 kt. Seas 42 ft.
.FRI NIGHT...SW wind 45 kt. Seas 42 ft.
.SAT...SW wind 40 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 22 ft.
.MON...NW wind 30 kt. Seas 20 ft.

$$

PKZ178-311400-
Kiska to Attu-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 65 kt. Seas 18 ft building to 27 ft after
midnight. Snow and rain.
.THU...SE wind 65 kt becoming SW 75 kt in the afternoon. Bering
side, seas 27 ft building to 38 ft in the afternoon. Pac side,
seas 45 ft building to 56 ft in the afternoon. Widespread snow 
showers and rain.
.THU NIGHT...W wind 70 kt becoming SW 60 kt after midnight. Seas
45 ft Bering side...54 ft Pac side. Widespread rain and snow
showers.
.FRI...SW wind 55 kt. Seas 44 ft.
.FRI NIGHT...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 50 kt. Seas 32 ft.
.SUN...W wind 35 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 19 ft.

$$

PKZ179-311400-
Pribilof Islands Near Shore Waters-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.THU...SE wind 30 kt increasing to 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 50 kt diminishing to 35 kt after midnight.
Seas 22 ft. Rain.
.FRI AND FRI NIGHT...S wind 20 kt. Seas 19 ft.
.SAT...SE wind 20 kt. Seas 19 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 12 ft.

$$

PKZ180-311400-
Kuskokwim Delta and Etolin Strait-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 10 kt. Seas 4 ft. Areas of freezing fog.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 14 ft. Heavy freezing spray.
.FRI...E wind 45 kt. Seas 15 ft.
.FRI NIGHT...E wind 25 kt. Seas 12 ft.
.SAT THROUGH MON...N wind 20 kt. Seas 7 ft.

$$

PKZ181-311400-
North and West of Nunivak Island-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas in ice free waters 3 ft.
.THU...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 5 ft. Freezing spray.
.THU NIGHT...E wind 45 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...E wind 40 kt. Seas in ice free waters 11 ft.
.FRI NIGHT...E wind 25 kt. Seas in ice free waters 6 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SUN THROUGH MON...N wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ185-311400-
Saint Matthew Island Waters-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.THU...E of Saint Matthew Island, SE wind 25 kt becoming E 40 kt
in the afternoon. W of Saint Matthew Island, SE wind 35 kt becoming 
E 50 kt in the afternoon. Seas 15 ft.
.THU NIGHT...E wind 45 kt E of Saint Matthew Island... E 55 kt W
of Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt. Seas 29 ft.
.FRI NIGHT...E wind 35 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 21 ft.
.SUN...N wind 35 kt. Seas 15 ft.
.MON...N wind 30 kt. Seas 15 ft.

$$

251 
FZAK52 PAFC 310102 CCA
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
402 PM AKST Wed Dec 30 2020

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.

Corrected to add fog to 160, 181.

PKZ199-311400-
402 PM AKST Wed Dec 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb on Thu afternoon, with 
the highest wave heights and winds between Shemya and Adak, and 
continues to 150 nm northeast of Attu and weakens to 936 mb on Fri
afternoon.

$$

PKZ150-311400-
South of the AK Peninsula Sitkinak to Castle Cape-
402 PM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. 
Seas 10 ft.
.THU...E wind 30 kt. Seas 13 ft building to 18 ft in the
afternoon.
.THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...E wind 30 kt. Seas 14 ft.
.FRI NIGHT...N wind 35 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 17 ft.
.SUN...W wind 15 kt. Seas 15 ft.
.MON...W wind 15 kt. Seas 11 ft.

$$

PKZ155-311400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 35 kt. Seas 20 ft.
.FRI NIGHT...W wind 30 kt. Seas 21 ft.
.SAT...SW wind 25 kt. Seas 22 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 16 ft.

$$

PKZ160-311400-
Bristol Bay-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft. Areas of fog and freezing fog.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 8 ft.
.FRI...E wind 35 kt. Seas 8 ft.
.FRI NIGHT...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 5 ft.

$$

PKZ165-311400-
Port Heiden to Cape Sarichef-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 10 ft. Rain and snow.
.FRI...S wind 35 kt. Seas 12 ft.
.FRI NIGHT...W wind 25 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 12 ft.
.MON...W wind 15 kt. Seas 7 ft.

$$

PKZ170-311400-
Cape Sarichef to Nikolski Bering Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 15 kt. Seas 7 ft.
.THU...SE wind 35 kt increasing to 50 kt in the afternoon. Seas 7
ft building to 14 ft in the afternoon. Snow.
.THU NIGHT...SE wind 45 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI AND FRI NIGHT...SW wind 25 kt. Seas 17 ft.
.SAT...S wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 10 ft.

$$

PKZ171-311400-
Unalaska Bay-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...N wind 15 kt becoming E after midnight. Seas 5 ft
subsiding to 3 ft after midnight.
.THU...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
6 ft. Snow.
.THU NIGHT...SE wind 45 kt becoming W 25 kt after midnight. Seas
7 ft subsiding to 4 ft after midnight. Snow with rain.
.FRI...SW wind 20 kt. Seas 3 ft.
.FRI NIGHT...SW wind 15 kt. Seas 2 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 3 ft.

$$

PKZ172-311400-
Cape Sarichef to Nikolski Pacific Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 30 kt increasing to 50 kt in the afternoon. 
Seas 18 ft. Snow.
.THU NIGHT...S wind 45 kt becoming W 30 kt after midnight. 
Seas 21 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 25 ft.
.FRI NIGHT...W wind 30 kt. Seas 27 ft.
.SAT...SW wind 30 kt. Seas 28 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 17 ft.

$$

PKZ173-311400-
Nikolski to Seguam Island Bering Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft.
.THU...SE wind 60 kt. Seas 18 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 30 kt. Seas 20 ft. Snow showers and rain
showers.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 20 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 11 ft.

$$

PKZ174-311400-
Nikolski to Seguam Island Pacific Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 20 kt becoming E after midnight. Seas 10 ft.
.THU...S wind 60 kt. Seas 20 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...W wind 35 kt. Seas 25 ft building to 32 ft after
midnight. Snow showers.
.FRI...SW wind 30 kt. Seas 31 ft.
.FRI NIGHT...SW wind 40 kt. Seas 35 ft.
.SAT...SW wind 30 kt. Seas 35 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-311400-
Seguam Island to Adak Bering Side-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 55 kt after midnight. 
Seas 7 ft building to 15 ft after midnight. Snow.
.THU...SE wind 65 kt becoming S 50 kt in the afternoon. 
Seas 24 ft. Snow and rain.
.THU NIGHT...SW wind 45 kt. Seas 26 ft. Snow showers.
.FRI AND FRI NIGHT...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 35 kt. Seas 25 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-311400-
Seguam Island to Adak Pacific Side-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 60 kt after midnight. Seas 10
ft building to 19 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas 33
ft. Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 41 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 36 ft.
.FRI NIGHT...SW wind 40 kt. Seas 39 ft.
.SAT...SW wind 35 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 21 ft.
.MON...W wind 30 kt. Seas 21 ft.

$$

PKZ177-311400-
Adak to Kiska-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 50 kt increasing to 65 kt after midnight. Seas
13 ft building to 26 ft after midnight. Snow and rain.
.THU...S wind 65 kt. Bering side, seas 27 ft building to 40 ft in
the afternoon. Pac side, seas 39 ft building to 53 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 65 kt diminishing to 55 kt after midnight.
Seas 43 ft Bering side...51 ft Pac side. Snow.
.FRI...SW wind 50 kt. Seas 42 ft.
.FRI NIGHT...SW wind 45 kt. Seas 42 ft.
.SAT...SW wind 40 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 22 ft.
.MON...NW wind 30 kt. Seas 20 ft.

$$

PKZ178-311400-
Kiska to Attu-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 65 kt. Seas 18 ft building to 27 ft after
midnight. Snow and rain.
.THU...SE wind 65 kt becoming SW 75 kt in the afternoon. Bering
side, seas 27 ft building to 38 ft in the afternoon. Pac side,
seas 45 ft building to 56 ft in the afternoon. Widespread snow 
showers and rain.
.THU NIGHT...W wind 70 kt becoming SW 60 kt after midnight. Seas
45 ft Bering side...54 ft Pac side. Widespread rain and snow
showers.
.FRI...SW wind 55 kt. Seas 44 ft.
.FRI NIGHT...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 50 kt. Seas 32 ft.
.SUN...W wind 35 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 19 ft.

$$

PKZ179-311400-
Pribilof Islands Near Shore Waters-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.THU...SE wind 30 kt increasing to 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 50 kt diminishing to 35 kt after midnight.
Seas 22 ft. Rain.
.FRI AND FRI NIGHT...S wind 20 kt. Seas 19 ft.
.SAT...SE wind 20 kt. Seas 19 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 12 ft.

$$

PKZ180-311400-
Kuskokwim Delta and Etolin Strait-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 10 kt. Seas 4 ft. Areas of freezing fog.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 14 ft. Heavy freezing spray.
.FRI...E wind 45 kt. Seas 15 ft.
.FRI NIGHT...E wind 25 kt. Seas 12 ft.
.SAT THROUGH MON...N wind 20 kt. Seas 7 ft.

$$

PKZ181-311400-
North and West of Nunivak Island-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas in ice free waters 3 ft. Areas of
freezing fog.
.THU...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 5 ft. Freezing spray.
.THU NIGHT...E wind 45 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...E wind 40 kt. Seas in ice free waters 11 ft.
.FRI NIGHT...E wind 25 kt. Seas in ice free waters 6 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SUN THROUGH MON...N wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ185-311400-
Saint Matthew Island Waters-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.THU...E of Saint Matthew Island, SE wind 25 kt becoming E 40 kt
in the afternoon. W of Saint Matthew Island, SE wind 35 kt becoming 
E 50 kt in the afternoon. Seas 15 ft.
.THU NIGHT...E wind 45 kt E of Saint Matthew Island... E 55 kt W
of Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt. Seas 29 ft.
.FRI NIGHT...E wind 35 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 21 ft.
.SUN...N wind 35 kt. Seas 15 ft.
.MON...N wind 30 kt. Seas 15 ft.

$$

072 
FZAK52 PAFC 311323
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
423 AM AKST Thu Dec 31 2020

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.

PKZ199-010215-
423 AM AKST Thu Dec 31 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb this afternoon, with the 
highest wave heights and winds between Shemya and Adak, and continues
to 150 nm northeast of Attu and weakens to 936 mb on Fri afternoon.

$$

PKZ150-010215-
South of the AK Peninsula Sitkinak to Castle Cape-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 30 kt. Seas 14 ft building to 20 ft in the 
afternoon.
.TONIGHT...E wind 35 kt. Seas 18 ft.
.FRI...SE wind 30 kt. Seas 14 ft. Rain with snow.
.FRI NIGHT...NE wind 20 kt. Seas 12 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 15 ft.
.MON...NE wind 20 kt. Seas 17 ft.

$$

PKZ155-010215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...NE wind 30 kt. Seas 18 ft.
.TONIGHT...SE wind 40 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 20 kt, Seas 13 ft building to 18 ft in the
afternoon. From the Shumagin Islands E, S wind 30 kt becoming W 15 
kt in the afternoon, Seas 14 ft.
.FRI NIGHT...W wind 20 kt. Seas 19 ft.
.SAT...SW wind 20 kt. Seas 22 ft.
.SUN...W wind 25 kt. Seas 19 ft.
.MON...SE wind 15 kt. Seas 14 ft.

$$

PKZ160-010215-
Bristol Bay-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING FRIDAY...

.TODAY...E wind 25 kt. Seas 4 ft.
.TONIGHT...E wind 40 kt. Seas 11 ft. Freezing spray.
.FRI...E wind 40 kt diminishing to 30 kt in the afternoon. Seas
10 ft. Heavy freezing spray near coast. Rain and snow.
.FRI NIGHT...E wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...E wind 15 kt. Seas 5 ft.
.MON...NE wind 20 kt. Seas 5 ft.

$$

PKZ165-010215-
Port Heiden to Cape Sarichef-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...SE wind 45 kt. Seas 12 ft. Rain.
.FRI...S wind 20 kt. Seas 13 ft. From Port Moller E, S wind 30 kt 
diminishing to 15 kt in the afternoon. Seas 10 ft.
.FRI NIGHT...S wind 20 kt. Seas 12 ft.
.SAT...S wind 20 kt. Seas 11 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.MON...SE wind 15 kt. Seas 9 ft.

$$

PKZ170-010215-
Cape Sarichef to Nikolski Bering Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 35 kt increasing to 55 kt in the afternoon. Seas
7 ft building to 16 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI...S wind 25 kt. Seas 18 ft.
.FRI NIGHT...S wind 25 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 25 kt. Seas 16 ft.
.MON...NW wind 15 kt. Seas 10 ft.

$$

PKZ171-010215-
Unalaska Bay-
423 AM AKST Thu Dec 31 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
4 ft building to 7 ft in the afternoon.
.TONIGHT...SE wind 45 kt becoming SW 25 kt after midnight. Seas 7
ft subsiding to 3 ft after midnight. Rain.
.FRI...S wind 15 kt. Seas 2 ft.
.FRI NIGHT...S wind 15 kt. Seas 2 ft.
.SAT THROUGH SUN...SW wind 15 kt. Seas 2 ft.
.MON...W wind 10 kt. Seas 3 ft.

$$

PKZ172-010215-
Cape Sarichef to Nikolski Pacific Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
14 ft building to 22 ft in the afternoon. Rain and snow.
.TONIGHT...S wind 45 kt becoming SW 30 kt after midnight. Seas
19 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 26 ft. Rain and snow showers.
.FRI NIGHT...SW wind 30 kt. Seas 27 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 26 ft.
.MON...W wind 20 kt. Seas 14 ft.

$$

PKZ173-010215-
Nikolski to Seguam Island Bering Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 19 ft building to 27 ft in the 
afternoon. Rain and snow.
.TONIGHT...SW wind 35 kt. Seas 19 ft. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 20 ft. Snow showers.
.FRI NIGHT...SW wind 35 kt. Seas 20 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 20 ft.
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ174-010215-
Nikolski to Seguam Island Pacific Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 26 ft. Snow and rain.
.TONIGHT...W wind 40 kt. Seas 24 ft building to 35 ft after 
midnight. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 34 ft. Snow showers.
.FRI NIGHT...SW wind 40 kt. Seas 36 ft.
.SAT...SW wind 35 kt. Seas 35 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...W wind 25 kt. Seas 19 ft.

$$

PKZ175-010215-
Seguam Island to Adak Bering Side-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming S 45 kt in the afternoon. Seas
24 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 29 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 26 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 40 kt. Seas 24 ft.
.SAT THROUGH SUN...SW wind 40 kt. Seas 22 ft.
.MON...NW wind 25 kt. Seas 9 ft.

$$

PKZ176-010215-
Seguam Island to Adak Pacific Side-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas
30 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 43 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 41 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 45 kt. Seas 43 ft.
.SAT...SW wind 40 kt. Seas 38 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...NW wind 25 kt. Seas 22 ft.

$$

PKZ177-010215-
Adak to Kiska-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SW wind 65 kt. Bering side, seas 25 ft building to 45 ft in
the afternoon. Pacific side, seas 37 ft building to 55 ft in the 
afternoon. Rain and snow showers.
.TONIGHT...SW wind 60 kt. Seas 42 ft Bering side... 53 ft Pacific 
side. Widespread snow showers.
.FRI...SW wind 55 kt. Seas 33 ft Bering side... 48 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...SW wind 50 kt. Seas 46 ft.
.SAT...W wind 45 kt. Seas 34 ft.
.SUN...SW wind 35 kt. Seas 23 ft.
.MON...N wind 20 kt. Seas 18 ft.

$$

PKZ178-010215-
Kiska to Attu-
423 AM AKST Thu Dec 31 2020

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

.TODAY...Bering side, SE wind 50 kt becoming SW 60 kt in the
afternoon, Seas 29 ft building to 48 ft in the afternoon. Pacific side,
S wind 70 kt, Seas 51 ft building to 60 ft in the afternoon. Rain 
and snow showers.
.TONIGHT...W wind 65 kt. Seas 45 ft Bering side...55 ft Pacific 
side. Widespread rain and snow showers.
.FRI...W wind 50 kt. Seas 33 ft Bering side...42 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...W wind 50 kt. Seas 35 ft.
.SAT...W wind 40 kt. Seas 26 ft.
.SUN THROUGH MON...N wind 35 kt. Seas 19 ft.

$$

PKZ179-010215-
Pribilof Islands Near Shore Waters-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
9 ft building to 15 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming S 25 kt after midnight. Seas
21 ft subsiding to 16 ft after midnight. Rain and snow showers.
.FRI...S wind 25 kt. Seas 20 ft.
.FRI NIGHT...SE wind 30 kt. Seas 18 ft.
.SAT...SE wind 25 kt. Seas 18 ft.
.SUN...SE wind 25 kt. Seas 14 ft.
.MON...NE wind 25 kt. Seas 12 ft.

$$

PKZ180-010215-
Kuskokwim Delta and Etolin Strait-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...E wind 45 kt. Seas 11 ft building to 16 ft after
midnight. Snow. Heavy freezing spray near coast.
.FRI...SE wind 45 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Heavy freezing spray near coast.
.FRI NIGHT...SE wind 20 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 8 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 7 ft.

$$

PKZ181-010215-
North and West of Nunivak Island-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 6 ft. Freezing spray.
.TONIGHT...E wind 45 kt. Seas in ice free waters 15 ft. Heavy 
freezing spray. Snow.
.FRI...E wind 45 kt becoming SE 35 kt in the afternoon. Seas in
ice free waters 14 ft subsiding to 9 ft in the afternoon. Heavy 
freezing spray.
.FRI NIGHT...E wind 20 kt. Seas in ice free waters 8 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas in ice free waters 6 ft.
.MON...NE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ185-010215-
Saint Matthew Island Waters-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...E of Saint Matthew Island, SE wind 25 kt becoming E 35 kt
in the afternoon. W of Saint Matthew Island, SE wind 30 kt
becoming E 50 kt in the afternoon. Seas 10 ft building to 16 ft in 
the afternoon.
.TONIGHT...E wind 45 kt E of Saint Matthew Island...E 55 kt W of
Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt becoming SE 30 kt in the afternoon. Seas 27
ft.
.FRI NIGHT...E wind 30 kt. Seas 21 ft.
.SAT THROUGH SUN...NE wind 35 kt. Seas 18 ft.
.MON...NE wind 30 kt. Seas 14 ft.

$$

544 
FZAK52 PAFC 311329 CCA
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
429 AM AKST Thu Dec 31 2020

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.

PKZ199-010215-
429 AM AKST Thu Dec 31 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 925 mb low 100 nm south of Attu moves to 80 nm northeast of Attu 
this evening, then to 200 nm northeast of Attu at 940 mb by Fri 
evening.


$$

PKZ150-010215-
South of the AK Peninsula Sitkinak to Castle Cape-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 30 kt. Seas 14 ft building to 20 ft in the 
afternoon.
.TONIGHT...E wind 35 kt. Seas 18 ft.
.FRI...SE wind 30 kt. Seas 14 ft. Rain with snow.
.FRI NIGHT...NE wind 20 kt. Seas 12 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 15 ft.
.MON...NE wind 20 kt. Seas 17 ft.

$$

PKZ155-010215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...NE wind 30 kt. Seas 18 ft.
.TONIGHT...SE wind 40 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 20 kt, Seas 13 ft building to 18 ft in the
afternoon. From the Shumagin Islands E, S wind 30 kt becoming W 15 
kt in the afternoon, Seas 14 ft.
.FRI NIGHT...W wind 20 kt. Seas 19 ft.
.SAT...SW wind 20 kt. Seas 22 ft.
.SUN...W wind 25 kt. Seas 19 ft.
.MON...SE wind 15 kt. Seas 14 ft.

$$

PKZ160-010215-
Bristol Bay-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING FRIDAY...

.TODAY...E wind 25 kt. Seas 4 ft.
.TONIGHT...E wind 40 kt. Seas 11 ft. Freezing spray.
.FRI...E wind 40 kt diminishing to 30 kt in the afternoon. Seas
10 ft. Heavy freezing spray near coast. Rain and snow.
.FRI NIGHT...E wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...E wind 15 kt. Seas 5 ft.
.MON...NE wind 20 kt. Seas 5 ft.

$$

PKZ165-010215-
Port Heiden to Cape Sarichef-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...SE wind 45 kt. Seas 12 ft. Rain.
.FRI...S wind 20 kt. Seas 13 ft. From Port Moller E, S wind 30 kt 
diminishing to 15 kt in the afternoon. Seas 10 ft.
.FRI NIGHT...S wind 20 kt. Seas 12 ft.
.SAT...S wind 20 kt. Seas 11 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.MON...SE wind 15 kt. Seas 9 ft.

$$

PKZ170-010215-
Cape Sarichef to Nikolski Bering Side-
429 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 35 kt increasing to 55 kt in the afternoon. Seas
7 ft building to 16 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI...S wind 25 kt. Seas 18 ft.
.FRI NIGHT...S wind 25 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 25 kt. Seas 16 ft.
.MON...NW wind 15 kt. Seas 10 ft.

$$

PKZ171-010215-
Unalaska Bay-
429 AM AKST Thu Dec 31 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
4 ft building to 7 ft in the afternoon.
.TONIGHT...SE wind 45 kt becoming SW 25 kt after midnight. Seas 7
ft subsiding to 3 ft after midnight. Rain.
.FRI...S wind 15 kt. Seas 2 ft.
.FRI NIGHT...S wind 15 kt. Seas 2 ft.
.SAT THROUGH SUN...SW wind 15 kt. Seas 2 ft.
.MON...W wind 10 kt. Seas 3 ft.

$$

PKZ172-010215-
Cape Sarichef to Nikolski Pacific Side-
429 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
14 ft building to 22 ft in the afternoon. Rain and snow.
.TONIGHT...S wind 45 kt becoming SW 30 kt after midnight. Seas
19 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 26 ft. Rain and snow showers.
.FRI NIGHT...SW wind 30 kt. Seas 27 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 26 ft.
.MON...W wind 20 kt. Seas 14 ft.

$$

PKZ173-010215-
Nikolski to Seguam Island Bering Side-
429 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 19 ft building to 27 ft in the 
afternoon. Rain and snow.
.TONIGHT...SW wind 35 kt. Seas 19 ft. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 20 ft. Snow showers.
.FRI NIGHT...SW wind 35 kt. Seas 20 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 20 ft.
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ174-010215-
Nikolski to Seguam Island Pacific Side-
429 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 26 ft. Snow and rain.
.TONIGHT...W wind 40 kt. Seas 24 ft building to 35 ft after 
midnight. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 34 ft. Snow showers.
.FRI NIGHT...SW wind 40 kt. Seas 36 ft.
.SAT...SW wind 35 kt. Seas 35 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...W wind 25 kt. Seas 19 ft.

$$

PKZ175-010215-
Seguam Island to Adak Bering Side-
429 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming S 45 kt in the afternoon. Seas
24 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 29 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 26 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 40 kt. Seas 24 ft.
.SAT THROUGH SUN...SW wind 40 kt. Seas 22 ft.
.MON...NW wind 25 kt. Seas 9 ft.

$$

PKZ176-010215-
Seguam Island to Adak Pacific Side-
429 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas
30 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 43 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 41 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 45 kt. Seas 43 ft.
.SAT...SW wind 40 kt. Seas 38 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...NW wind 25 kt. Seas 22 ft.

$$

PKZ177-010215-
Adak to Kiska-
429 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SW wind 65 kt. Bering side, seas 25 ft building to 45 ft in
the afternoon. Pacific side, seas 37 ft building to 55 ft in the 
afternoon. Rain and snow showers.
.TONIGHT...SW wind 60 kt. Seas 42 ft Bering side... 53 ft Pacific 
side. Widespread snow showers.
.FRI...SW wind 55 kt. Seas 33 ft Bering side... 48 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...SW wind 50 kt. Seas 46 ft.
.SAT...W wind 45 kt. Seas 34 ft.
.SUN...SW wind 35 kt. Seas 23 ft.
.MON...N wind 20 kt. Seas 18 ft.

$$

PKZ178-010215-
Kiska to Attu-
429 AM AKST Thu Dec 31 2020

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

.TODAY...Bering side, SE wind 50 kt becoming SW 60 kt in the
afternoon, Seas 29 ft building to 48 ft in the afternoon. Pacific side,
S wind 70 kt, Seas 51 ft building to 60 ft in the afternoon. Rain 
and snow showers.
.TONIGHT...W wind 65 kt. Seas 45 ft Bering side...55 ft Pacific 
side. Widespread rain and snow showers.
.FRI...W wind 50 kt. Seas 33 ft Bering side...42 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...W wind 50 kt. Seas 35 ft.
.SAT...W wind 40 kt. Seas 26 ft.
.SUN THROUGH MON...N wind 35 kt. Seas 19 ft.

$$

PKZ179-010215-
Pribilof Islands Near Shore Waters-
429 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
9 ft building to 15 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming S 25 kt after midnight. Seas
21 ft subsiding to 16 ft after midnight. Rain and snow showers.
.FRI...S wind 25 kt. Seas 20 ft.
.FRI NIGHT...SE wind 30 kt. Seas 18 ft.
.SAT...SE wind 25 kt. Seas 18 ft.
.SUN...SE wind 25 kt. Seas 14 ft.
.MON...NE wind 25 kt. Seas 12 ft.

$$

PKZ180-010215-
Kuskokwim Delta and Etolin Strait-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...E wind 45 kt. Seas 11 ft building to 16 ft after
midnight. Snow. Heavy freezing spray near coast.
.FRI...SE wind 45 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Heavy freezing spray near coast.
.FRI NIGHT...SE wind 20 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 8 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 7 ft.

$$

PKZ181-010215-
North and West of Nunivak Island-
429 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 6 ft. Freezing spray.
.TONIGHT...E wind 45 kt. Seas in ice free waters 15 ft. Heavy 
freezing spray. Snow.
.FRI...E wind 45 kt becoming SE 35 kt in the afternoon. Seas in
ice free waters 14 ft subsiding to 9 ft in the afternoon. Heavy 
freezing spray.
.FRI NIGHT...E wind 20 kt. Seas in ice free waters 8 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas in ice free waters 6 ft.
.MON...NE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ185-010215-
Saint Matthew Island Waters-
429 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...E of Saint Matthew Island, SE wind 25 kt becoming E 35 kt
in the afternoon. W of Saint Matthew Island, SE wind 30 kt
becoming E 50 kt in the afternoon. Seas 10 ft building to 16 ft in 
the afternoon.
.TONIGHT...E wind 45 kt E of Saint Matthew Island...E 55 kt W of
Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt becoming SE 30 kt in the afternoon. Seas 27
ft.
.FRI NIGHT...E wind 30 kt. Seas 21 ft.
.SAT THROUGH SUN...NE wind 35 kt. Seas 18 ft.
.MON...NE wind 30 kt. Seas 14 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
543 PM AKST Tue Dec 29 2020

.ANALYSIS AND UPPER LEVELS...

Deep southerly flow between a nearly stationary trough centered
over the Western Bering and a ridge of high pressure over the
Interior/Yukon Territory continues to bring widespread cloudcover
and scattered rain/snow showers to the Southwest mainland. Just to
the east of this cloud cover, subsidence with the high pressure
allowed for a clear and cold morning today, along with some patchy
fog around Upper Cook Inlet.

A shortwave trough within the southerly flow over Kodiak Island
brought rain to the area today. This feature will continue
progressing northward this evening, and will be the focus for
light snow for much of Southcentral overnight. A weak low under
this shortwave trough is beginning the cross over the AKPen where
it is bringing rain and wet snow to the area as it progresses
northward. The western Bering low continues to slowly weaken and
drift westward. Winds from this system have now fallen below gale
force, but otherwise is not producing significant impacts outside
continued scattered shower activity.

&&

.MODEL DISCUSSION...

In general, synoptic model agreement remains good through
Wednesday leading to above average forecast confidence for much of
the area. There are some very minor timing differences with how
quickly the shortwave over Kodiak Island will move northward into
Southcentral early Wednesday morning that is producing some
uncertainty in the onset/dissipation of any snowfall, but
confidence is good in the forecast trends over the next 2 days.
Model agreement also remains very good with the extremely deep
low that will move into the Bering by Thursday. There still
remains around 10 mb in spread in this systems extremely low
central pressure between the most aggressive EC and least
aggressive NAM. The forecast continues to favor the GFS as a
middle ground solution. As far as impacts from this system
however, there is very good agreement in the location and timing for
highest winds and seas into Friday.

&&

.AVIATION...

PANC...VFR conditions with light/variable winds will continue
until overnight tonight, when a few hours of IFR snow and around
1 inch of accumulation is expected. As is mentioned in the model
discussion above there is some uncertainty in exact timing of
this feature, but there is generally good confidence that VFR
conditions will redevelop again after 18z on Wednesday.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

In the next two days, a mix of rain and snow will move across
much of Southcentral and Kodiak Island. A frontal boundary over
the northern Gulf will drive heavier rainfall inland this evening
before transitioning to snow along Prince William Sound and
Anchorage Bowl northward tonight. Meanwhile, warm temperatures
over southern Kenai Peninsula and Kodiak Island will maintain
precipitation in the form of liquid throughout most of the
forecast period.

A stacked low over Shelikof Strait will bring another round of
snowfall across the Bowl and Southcentral by Wednesday and
Wednesday night. GFS and NAM struggles a bit on the placement of
the upper low, with the GFS aiming to keep the upper low over
Anchorage Bowl and delay its motion eastward in the next couple
days. NAM whips the upper low past Anchorage Bowl by Thursday
morning and parks it over Prince William Sound through Thursday
night. Should the upper level low linger over the Anchorage Bowl
or PWS, new updates to the forecast will be provided. For now, the
amount of snowfall would likely be more over the Anchorage Bowl
than other areas tonight.

Much colder temperatures aloft will linger between the Susitna
Valley and Copper River Basin before spreading eastward toward
Valdez and Thompson Pass on Thursday. At 850 mb, environmental
temperatures upstream will continue to fall to -16 degrees
Celsius by Thursday night. The potential for patchy freezing fog
around Port Valdez and Thompson Pass is feasible starting
Wednesday night through Thursday night. Light winds near Valdez
northward and along the southern Cook Inlet and lower temperatures
in the next couple nights will invite freezing fog in those
areas. As a result, it'll be relatively quiet and a bit cooler in
the next couple days.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3/Tonight
through Friday)...

An upper level short-wave trough and surface low along the Alaska
Peninsula will lift northward across the Bristol Bay region
tonight through Thursday, bringing periods of light precipitation.
The airmass is warm enough to produce mostly rain this afternoon
and evening, but expect a transition to mostly snow overnight.
Snow accumulation will be light, with an inch or two at most by
Thursday afternoon. The remainder of Southwest Alaska will be on
the fringes of this system, with patchy light precipitation.

A ridge of high pressure will build overhead Wednesday night
through Thursday, leading to dry conditions, cooler temperatures,
and most likely areas of fog. For Thursday night through Friday,
a strong front associated with a hurricane-force low along the
western Aleutians will near the Southwest Alaska coast. It looks
like ridging over the mainland will hold the front at bay, so most
areas will likely remain dry. However, expect an increase in
easterly winds, especially along the immediate coastline.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3/Tonight
through Friday)...

A large low spinning over the western Bering Sea will continue to
produce showers and gusty winds across much of the region through
Wednesday. Attention will then shift to what could end up being a
record-breaking storm. A weak low near Japan will rapidly
intensify ahead of short-wave trough moving out of Asia, aided by
a 200 kt+ upper level jet and extreme thermal gradients
between a sub-tropical air mass over the Pacific (850 mb
temperatures of +12 degrees Celsius or warmer) and a polar
airmass over Asia (-20 degrees Celsius near the coast). This low
will bottom out as it reaches the western Aleutian Islands
Thursday morning. Models continue to trend deeper with the central
pressure, with the various solutions ranging from 919 mb to 930
mb. This will rival the Bering Sea storm from November 2014 which
developed from the remnants of Typhoon Nuri. The estimated
central pressure of that storm was 924 mb. In any case, the
combination of extremely low pressure and rapidly falling pressure
as the storm arrives will lead to widespread storm force to
hurricane force winds along the Aleutians and into the Bering Sea
Wednesday night through Thursday. The low will stall along or
north of the western Aleutians, which means the most extreme
weather will remain in that area. The frontal system will progress
eastward across the Bering Sea and Aleutians Thursday through
Friday, weakening as it progresses eastward. Winds will remain
elevated along the Aleutians the entire time, as arctic air feeds
into the back side of the storm.

Have issued a High Wind Warning from Adak to Atka for the leading
front with southeasterly winds. At the moment it appears the
strongest core of winds on the south side of the low center
Thursday will remain away from populated islands. This could
change if the low track shifts, so stay tuned to the latest
forecasts.

&&

.MARINE (Days 3 through 5: Friday through Sunday)...

Gulf of Alaska:
Confidence remains high for a broad low center to gradually drift
northwards over the southern Gulf on Friday with gale force winds
likely north of the low, or near the northern Gulf Coast. Winds
should decrease to small craft levels as the low and associated
front weaken from late Friday to early Saturday. Forecast
confidence decreases from Saturday to Sunday as the aforementioned
low slowly drifts towards the Gulf Coast and continues to weaken.

Several smaller lows may rotate around the broader circulation
this weekend and potentially track across the southern Gulf with
locally small craft to gale force winds possible as they push
eastwards. However, confidence for these individual low tracks is
poor at this time. This uncertainly stems from the placement of
the Gulf low by the weekend and from differences in the evolution
of the extremely deep low spanning across the Bering during the
forecast period.

Aleutians/Bering:
Forecast remains on track for an extremely deep to potentially
record setting low to track across the Western Aleutians and into
the western Bering Thursday into Friday. By Thursday evening, the
center will be positioned north of Attu with widespread storm
force winds wrapping the low to the west of Adak and across much
of the Bering, with an area of hurricane force winds likely
between Attu and Adak across the Rat Islands. Southeast gale to
storm force winds are also expected ahead of the low's front as it
tracks through the Central Bering/Aleutians and Pribilofs on
Friday. Waves as high as 40-55 ft will be possible on Friday near
the Pacific coastline of the far Western Aleutians until winds
weaken below storm force early Saturday. By Saturday, there is
good confidence the low will stall in the far western bering as it
slowly fills with winds weakening to gale force on Saturday, then
dropping to mostly small crafts from late Saturday to Sunday.
Winds along the front will quickly diminish as the boundary also
stalls in the eastern Bering on Saturday morning.

&&

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

Despite continuing to have the remnants of a potentially record
setting low in the Bering, the weather for much of the southern
mainland for Saturday look quite benign with high pressure
dominating most areas. There is good agreement in low pressure in
the extreme southern Gulf through Saturday, that will produce
outflow winds to the typical channeled areas of the Gulf Coast,
however this does not look to impact most interior locations.
Starting Sunday, this Gulf low pressure will begin to lift into
the north Gulf Coast, likely bringing with it warming conditions
and a chance of precipitation to the Gulf Coast/Southcentral. By
Monday, model agreement becomes very poor, so forecast confidence
for early next week is very low.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Warning: 185.
MARINE...Hurricane Force Wind Warning: 177 178.
Storm Warning: 175 176 411 413.
Gale Warning: 119 130 185 412.

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...CB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...SEB
MARINE/LONG TERM...AS/DEK