Storm Warning 186, NWS Anchorage, AK

698 
FZAK52 PAFC 280010
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
310 PM AKST Fri Nov 27 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.

PKZ199-281300-
310 PM AKST Fri Nov 27 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 964 low west of Unimak Island moves to 90 nm west of Middleton 
Island at 982 mb for Sun afternoon. A 975 mb low 260 nm north of 
Amchitka moves into the North Pacific at 1001 mb and its front 
dissipates Sun afternoon. A 989 mb North Pacific low and front moves 
to 250 nm south of Kiska Sun afternoon.

$$

PKZ150-281300-
South of the AK Peninsula Sitkinak to Castle Cape-
310 PM AKST Fri Nov 27 2020

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E of Chirikof Island, SW wind 30 kt becoming SE 20 kt
afternoon. W of Chirikof Island, SW wind 30 kt becoming NW after
midnight. Seas 14 ft building to 20 ft after midnight. Widespread 
rain and snow showers.
.SAT...E of Chirikof Island, E wind 20 kt becoming NW 40 kt in the 
afternoon. W of Chirikof Island, NW wind 30 kt increasing to 40 kt 
in the afternoon. Seas 21 ft.
.SAT NIGHT...W wind 40 kt. Seas 19 ft.
.SUN...W wind 35 kt. Seas 15 ft.
.SUN NIGHT...SW wind 30 kt. Seas 10 ft.
.MON...SE wind 45 kt. Seas 17 ft.
.TUE...S wind 25 kt. Seas 18 ft.
.WED...NW wind 20 kt. Seas 15 ft.

$$

PKZ155-281300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
310 PM AKST Fri Nov 27 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...W wind 45 kt, Seas 33 ft subsiding to 27 ft after
midnight. From the Shumagin Islands E, S wind 35 kt becoming NW
after midnight, Seas 27 ft. Widespread rain and snow showers.
.SAT...NW wind 40 kt diminishing to 30 kt in the afternoon. From
the Shumagin Islands E, NW wind 40 kt. Seas 22 ft.
.SAT NIGHT...W wind 30 kt. Seas 15 ft.
.SUN...W wind 30 kt. Seas 11 ft.
.SUN NIGHT...E wind 45 kt. Seas 14 ft.
.MON...S wind 45 kt. Seas 20 ft.
.TUE...N wind 30 kt. Seas 18 ft.
.WED...NW wind 25 kt. Seas 11 ft.

$$

PKZ160-281300-
Bristol Bay-
310 PM AKST Fri Nov 27 2020

...GALE WARNING TONIGHT AND SATURDAY NIGHT...

.TONIGHT...NE wind 35 kt. Seas 8 ft. Freezing spray along 
the coast, patchy fog and freezing fog. Snow and rain.
.SAT...N wind 30 kt. Seas 9 ft. Patchy fog and freezing fog. Snow.
.SAT NIGHT...NW wind 35 kt. Seas 10 ft. Freezing spray.
.SUN...NW wind 25 kt. Seas 9 ft.
.SUN NIGHT...NE wind 25 kt. Seas 5 ft.
.MON...NE wind 40 kt. Seas 10 ft.
.TUE THROUGH WED...NW wind 20 kt. Seas 4 ft.

$$

PKZ165-281300-
Port Heiden to Cape Sarichef-
310 PM AKST Fri Nov 27 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...N wind 45 kt. From Port Moller E, E wind 30 kt 
becoming N 40 kt after midnight. Seas 16 ft. Rain and snow.
.SAT...NW wind 30 kt except NW 35 kt from Port Moller E. 
Seas 14 ft.
.SAT NIGHT...NW wind 30 kt. Seas 13 ft.
.SUN...NW wind 25 kt. Seas 11 ft.
.SUN NIGHT...E wind 40 kt. Seas 9 ft.
.MON...NE wind 50 kt. Seas 19 ft.
.TUE...N wind 35 kt. Seas 16 ft.
.WED...NW wind 25 kt. Seas 12 ft.

$$

PKZ170-281300-
Cape Sarichef to Nikolski Bering Side-
310 PM AKST Fri Nov 27 2020

...GALE WARNING TONIGHT...

.TONIGHT...N wind 40 kt becoming NW 30 kt after midnight. 
Seas 18 ft. Rain and snow.
.SAT...NW wind 25 kt. Seas 16 ft.
.SAT NIGHT...NW wind 25 kt. Seas 13 ft.
.SUN...NE wind 30 kt. Seas 10 ft.
.SUN NIGHT...E wind 50 kt. Seas 16 ft.
.MON...N wind 50 kt. Seas 21 ft.
.TUE...N wind 40 kt. Seas 21 ft.
.WED...N wind 25 kt. Seas 12 ft.

$$

PKZ171-281300-
Unalaska Bay-
310 PM AKST Fri Nov 27 2020

...GALE WARNING TONIGHT...

.TONIGHT...NW wind increasing to 35 kt, then diminishing to 25 kt
after midnight. Seas 13 ft. Rain.
.SAT...NW wind 20 kt. Seas 7 ft. Rain showers and snow showers.
.SAT NIGHT...NW wind 20 kt. Seas 7 ft subsiding to 2 ft after
midnight.
.SUN...SE wind 25 kt. Seas 4 ft.
.SUN NIGHT...E wind 45 kt. Seas 7 ft.
.MON...N wind 40 kt. Seas 16 ft.
.TUE...N wind 30 kt. Seas 13 ft.
.WED...NW wind 15 kt. Seas 5 ft.

$$

PKZ172-281300-
Cape Sarichef to Nikolski Pacific Side-
310 PM AKST Fri Nov 27 2020

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 50 kt diminishing to 40 kt after midnight. 
Seas 32 ft subsiding to 23 ft after midnight. Widespread rain 
and snow showers.
.SAT...NW wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 18 ft.
.SAT NIGHT...NW wind 25 kt. Seas 13 ft.
.SUN...SE wind 40 kt. Seas 11 ft.
.SUN NIGHT...E wind 50 kt. Seas 15 ft.
.MON...N wind 40 kt. Seas 23 ft.
.TUE...NW wind 40 kt. Seas 17 ft.
.WED...NW wind 25 kt. Seas 9 ft.

$$

PKZ173-281300-
Nikolski to Seguam Island Bering Side-
310 PM AKST Fri Nov 27 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 40 kt diminishing to 30 kt after midnight. 
Seas 22 ft. Snow showers.
.SAT...W wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 18 ft. Snow showers.
.SAT NIGHT...N wind 20 kt. Seas 14 ft.
.SUN...E wind 45 kt. Seas 13 ft.
.SUN NIGHT...NE wind 50 kt. Seas 21 ft.
.MON...N wind 50 kt. Seas 23 ft.
.TUE...N wind 35 kt. Seas 20 ft.
.WED...Variable wind 10 kt. Seas 10 ft.

$$

PKZ174-281300-
Nikolski to Seguam Island Pacific Side-
310 PM AKST Fri Nov 27 2020

...STORM WARNING TONIGHT...

.TONIGHT...W wind 50 kt diminishing to 35 kt after midnight. 
Seas 26 ft. Snow showers and rain showers.
.SAT...W wind 30 kt. Seas 19 ft. Snow showers.
.SAT NIGHT...NW wind 25 kt becoming NE 15 kt after midnight. 
Seas 18 ft subsiding to 13 ft after midnight.
.SUN...E wind 45 kt. Seas 15 ft.
.SUN NIGHT...E wind 50 kt. Seas 19 ft.
.MON...N wind 50 kt. Seas 30 ft.
.TUE...N wind 35 kt. Seas 17 ft.
.WED...N wind 15 kt. Seas 7 ft.

$$

PKZ175-281300-
Seguam Island to Adak Bering Side-
310 PM AKST Fri Nov 27 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...W wind 35 kt. Seas 22 ft. Snow showers.
.SAT...W wind 45 kt becoming N 30 kt in the afternoon. Seas 24 ft
subsiding to 17 ft in the afternoon. Snow showers.
.SAT NIGHT...N wind 20 kt becoming E 30 kt after midnight. 
Seas 13 ft. Snow.
.SUN AND SUN NIGHT...NE wind 50 kt. Seas 20 ft.
.MON...N wind 45 kt. Seas 22 ft.
.TUE...N wind 25 kt. Seas 16 ft.
.WED...E wind 15 kt. Seas 9 ft.

$$

PKZ176-281300-
Seguam Island to Adak Pacific Side-
310 PM AKST Fri Nov 27 2020

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...W wind 40 kt. Seas 21 ft. Snow showers.
.SAT...W wind 45 kt. Seas 20 ft.
.SAT NIGHT...NW wind 25 kt becoming SE after midnight. Seas 17 ft
subsiding to 10 ft after midnight. Rain and snow.
.SUN...E wind 50 kt. Seas 18 ft.
.SUN NIGHT...NE wind 50 kt. Seas 29 ft.
.MON...N wind 45 kt. Seas 28 ft.
.TUE...N wind 30 kt. Seas 13 ft.
.WED...E wind 15 kt. Seas 7 ft.

$$

PKZ177-281300-
Adak to Kiska-
310 PM AKST Fri Nov 27 2020

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 21 ft. Snow showers.
.SAT...W wind 45 kt becoming NW 35 kt in the afternoon. 
Seas 20 ft.
.SAT NIGHT...E wind 25 kt increasing to 50 kt after 
midnight. Seas 12 ft. Rain and snow.
.SUN AND SUN NIGHT...NE wind 50 kt. Seas 25 ft.
.MON...N wind 35 kt. Seas 21 ft.
.TUE...NE wind 15 kt. Seas 11 ft.
.WED...Variable wind 10 kt. Seas 9 ft.

$$

PKZ178-281300-
Kiska to Attu-
310 PM AKST Fri Nov 27 2020

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...W wind 35 kt. Seas 18 ft.
.SAT...W wind 30 kt diminishing to 15 kt in the afternoon. 
Seas 16 ft.
.SAT NIGHT...E wind 35 kt increasing to 50 kt after midnight. 
Seas 10 ft building to 16 ft after midnight. Rain and snow.
.SUN...NE wind 50 kt. Seas 24 ft.
.SUN NIGHT...N wind 40 kt. Seas 23 ft.
.MON...N wind 20 kt. Seas 14 ft.
.TUE THROUGH WED...N wind 15 kt. Seas 9 ft.

$$

PKZ179-281300-
Pribilof Islands Near Shore Waters-
310 PM AKST Fri Nov 27 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 13 ft. Patchy fog.
.SAT...NW wind 25 kt. Seas 12 ft. Patchy fog.
.SAT NIGHT...NW wind 25 kt. Seas 11 ft.
.SUN...NE wind 20 kt. Seas 8 ft.
.SUN NIGHT...NE wind 35 kt. Seas 12 ft.
.MON...NE wind 40 kt. Seas 18 ft.
.TUE...N wind 35 kt. Seas 17 ft.
.WED...N wind 15 kt. Seas 11 ft.

$$

PKZ180-281300-
Kuskokwim Delta and Etolin Strait-
310 PM AKST Fri Nov 27 2020

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

.TONIGHT...NE wind 40 kt becoming N 30 kt after midnight. 
Seas 10 ft. Heavy freezing spray along the coast.
.SAT...N wind 30 kt. Seas 9 ft. Freezing spray.
.SAT NIGHT...NW wind 30 kt. Seas 9 ft. Heavy freezing 
spray along the coast.
.SUN...NW wind 25 kt. Seas 9 ft.
.SUN NIGHT...NE wind 30 kt. Seas 6 ft.
.MON...NE wind 40 kt. Seas 12 ft.
.TUE...N wind 35 kt. Seas 12 ft.
.WED...NW wind 25 kt. Seas 9 ft.

$$

PKZ181-281300-
North and West of Nunivak Island-
310 PM AKST Fri Nov 27 2020

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...
...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 6 ft. Heavy freezing spray 
along the coast.
.SAT...N wind 25 kt. Seas 8 ft. Freezing spray. Snow showers.
.SAT NIGHT...NW wind 30 kt. Seas 10 ft. Heavy freezing spray 
along the coast.
.SUN AND SUN NIGHT...NE wind 25 kt. Seas 9 ft.
.MON THROUGH TUE...N wind 35 kt. Seas 11 ft.
.WED...NW wind 25 kt. Seas 11 ft.

$$

PKZ185-281300-
Saint Matthew Island Waters-
310 PM AKST Fri Nov 27 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 8 ft.
.SAT...N wind 25 kt. Seas 10 ft.
.SAT NIGHT...N wind 25 kt. Seas 10 ft. Freezing spray.
.SUN AND SUN NIGHT...NE wind 25 kt. Seas 8 ft.
.MON THROUGH TUE...N wind 30 kt. Seas 9 ft.
.WED...NW wind 20 kt. Seas 10 ft.

$$

095 
FZAK52 PAFC 281253
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
353 AM AKST Sat Nov 28 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.

PKZ199-290200-
353 AM AKST Sat Nov 28 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 967 mb low 160 nm SE of Sand Point Sat morning moves into the
Gulf Sat afternoon. A 987 mb low 225 nm N of Amchitka Sat morning
moves into the north Pacific Sun morning. A 961 mb low and front 
350 nm S of Shemya Sun morning moves to 325 nm S of Nikolski Mon
morning. 

$$

PKZ150-290200-
South of the AK Peninsula Sitkinak to Castle Cape-
353 AM AKST Sat Nov 28 2020

...GALE WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 kt becoming NW 40 kt in the afternoon. Seas 21 ft.
.TONIGHT...W wind 40 kt. Seas 19 ft.
.SUN...W wind 35 kt. Seas 15 ft.
.SUN NIGHT...SW wind 30 kt. Seas 10 ft.
.MON...SE wind 45 kt. Seas 16 ft.
.TUE...SW wind 20 kt. Seas 17 ft.
.WED...W wind 20 kt. Seas 13 ft.

$$

PKZ155-290200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
353 AM AKST Sat Nov 28 2020

...GALE WARNING TODAY...

.TODAY...NW wind 40 kt diminishing to 30 kt in the afternoon. From
the Shumagin Islands E, NW wind 40 kt. Seas 22 ft.
.TONIGHT...W wind 30 kt. Seas 15 ft.
.SUN...W wind 25 kt becoming SW 15 kt in the afternoon. From the
Shumagin Islands E, W wind 30 kt. Seas 11 ft.
.SUN NIGHT...E wind 45 kt. Seas 14 ft.
.MON...S wind 45 kt. Seas 18 ft.
.TUE...NW wind 30 kt. Seas 18 ft.
.WED...NW wind 20 kt. Seas 11 ft.

$$

PKZ160-290200-
Bristol Bay-
353 AM AKST Sat Nov 28 2020

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

.TODAY...N wind 30 kt. Seas 9 ft. Patchy fog and freezing fog. Snow.
.TONIGHT...NW wind 35 kt. Seas 10 ft. Heavy freezing spray near the
coast.
.SUN...NW wind 25 kt. Seas 9 ft. Freezing spray. 
.SUN NIGHT...NE wind 25 kt. Seas 5 ft. Heavy freezing spray near the
coast.
.MON...NE wind 40 kt. Seas 10 ft. Heavy freezing spray near the
coast.
.TUE THROUGH WED...N wind 20 kt. Seas 5 ft.

$$

PKZ165-290200-
Port Heiden to Cape Sarichef-
353 AM AKST Sat Nov 28 2020

...GALE WARNING TODAY...

.TODAY...NW wind 30 kt except NW 35 kt from Port Moller E. Seas
14 ft.
.TONIGHT...NW wind 30 kt. Seas 13 ft.
.SUN...NW wind 20 kt in the morning becoming variable 10 kt. From
Port Moller E, NW wind 25 kt. Seas 11 ft.
.SUN NIGHT...E wind 40 kt. Seas 9 ft.
.MON...NE wind 50 kt. Seas 18 ft.
.TUE...NW wind 35 kt. Seas 16 ft.
.WED...N wind 30 kt. Seas 13 ft.

$$

PKZ170-290200-
Cape Sarichef to Nikolski Bering Side-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NW wind 25 kt. Seas 16 ft.
.TONIGHT...NW wind 25 kt. Seas 13 ft.
.SUN...NW wind 15 kt becoming E 30 kt in the afternoon. Seas 10 ft.
.SUN NIGHT...E wind 50 kt. Seas 16 ft.
.MON...N wind 50 kt. Seas 21 ft.
.TUE...N wind 35 kt. Seas 20 ft.
.WED...N wind 25 kt. Seas 12 ft.

$$

PKZ171-290200-
Unalaska Bay-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...NW wind 20 kt. Seas 7 ft. Rain showers and snow showers.
.TONIGHT...NW wind 20 kt. Seas 7 ft subsiding to 2 ft after midnight.
.SUN...SW wind 10 kt becoming E 25 kt in the afternoon. Seas 2 ft
building to 4 ft in the afternoon. Snow.
.SUN NIGHT...E wind 45 kt. Seas 7 ft.
.MON...N wind 40 kt. Seas 16 ft.
.TUE...NW wind 25 kt. Seas 10 ft.
.WED...N wind 15 kt. Seas 5 ft.

$$

PKZ172-290200-
Cape Sarichef to Nikolski Pacific Side-
353 AM AKST Sat Nov 28 2020

...GALE WARNING TODAY AND SUNDAY...

.TODAY...NW wind 35 kt. Seas 18 ft.
.TONIGHT...NW wind 25 kt. Seas 13 ft.
.SUN...SW wind 20 kt becoming SE 40 kt in the afternoon. Seas 11 ft.
Snow and rain.
.SUN NIGHT...E wind 50 kt. Seas 15 ft.
.MON...N wind 40 kt. Seas 23 ft.
.TUE...NW wind 35 kt. Seas 16 ft.
.WED...N wind 20 kt. Seas 8 ft.

$$

PKZ173-290200-
Nikolski to Seguam Island Bering Side-
353 AM AKST Sat Nov 28 2020

...GALE WARNING SUNDAY...

.TODAY...W wind 30 kt. Seas 18 ft. Snow showers.
.TONIGHT...N wind 20 kt. Seas 14 ft.
.SUN...E wind 30 kt increasing to 45 kt in the afternoon. Seas 8 ft 
building to 13 ft in the afternoon. Snow and rain.
.SUN NIGHT...NE wind 50 kt. Seas 21 ft.
.MON...N wind 50 kt. Seas 23 ft.
.TUE...N wind 30 kt. Seas 18 ft.
.WED...N wind 15 kt. Seas 10 ft.

$$

PKZ174-290200-
Nikolski to Seguam Island Pacific Side-
353 AM AKST Sat Nov 28 2020

...GALE WARNING SUNDAY...

.TODAY...W wind 30 kt. Seas 19 ft. Snow showers.
.TONIGHT...NW wind 25 kt becoming NE 15 kt after midnight. Seas
18 ft subsiding to 13 ft after midnight.
.SUN...SE wind 30 kt becoming E 45 kt in the afternoon. Seas 10 ft
building to 15 ft in the afternoon. Rain and snow.
.SUN NIGHT...E wind 50 kt. Seas 19 ft.
.MON...N wind 50 kt. Seas 30 ft.
.TUE...NW wind 30 kt. Seas 16 ft.
.WED...N wind 15 kt. Seas 7 ft.

$$

PKZ175-290200-
Seguam Island to Adak Bering Side-
353 AM AKST Sat Nov 28 2020

...STORM WARNING SUNDAY...

.TODAY...W wind 45 kt. Seas 24 ft. Snow showers.
.TONIGHT...N wind 20 kt becoming E 30 kt after midnight. Seas 13 ft.
Snow.
.SUN...E wind 50 kt. Seas 11 ft building to 18 ft in the afternoon. 
Snow and rain.
.SUN NIGHT...NE wind 50 kt. Seas 22 ft.
.MON...N wind 45 kt. Seas 22 ft.
.TUE...N wind 20 kt. Seas 13 ft.
.WED...Variable wind 10 kt. Seas 9 ft.

$$

PKZ176-290200-
Seguam Island to Adak Pacific Side-
353 AM AKST Sat Nov 28 2020

...STORM WARNING SUNDAY...

.TODAY...W wind 45 kt. Seas 20 ft.
.TONIGHT...NW wind 25 kt becoming SE after midnight. Seas 17 ft
subsiding to 10 ft after midnight. Rain and snow.
.SUN...E wind 50 kt. Seas 18 ft. Rain and snow.
.SUN NIGHT...NE wind 50 kt. Seas 29 ft.
.MON...N wind 45 kt. Seas 28 ft.
.TUE...N wind 20 kt. Seas 12 ft.
.WED...Variable wind 10 kt. Seas 7 ft.

$$

PKZ177-290200-
Adak to Kiska-
353 AM AKST Sat Nov 28 2020

...STORM WARNING TONIGHT AND SUNDAY...

.TODAY...W wind 45 kt becoming NW 35 kt in the afternoon. Seas
20 ft.
.TONIGHT...E wind 25 kt increasing to 50 kt after midnight. Seas
12 ft. Rain and snow.
.SUN...E wind 50 kt. Seas 22 ft. Rain and snow.
.SUN NIGHT...NE wind 50 kt. Seas 27 ft.
.MON...N wind 35 kt. Seas 21 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 10 ft.

$$

PKZ178-290200-
Kiska to Attu-
353 AM AKST Sat Nov 28 2020

...STORM WARNING TONIGHT AND SUNDAY...

.TODAY...W wind 30 kt diminishing to 15 kt in the afternoon. Seas
16 ft.
.TONIGHT...Pacific Side E wind 35 kt increasing to 50 kt after 
midnight. Bering Side E wind 30 kt increaseing to 45 after midnight. Seas
10 ft building to 16 ft after midnight. Rain and snow.
.SUN...NE wind 50 kt. Seas 24 ft. Rain and snow.
.SUN NIGHT...N wind 40 kt. Seas 23 ft.
.MON...N wind 20 kt. Seas 14 ft.
.TUE...Variable wind 10 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 9 ft.

$$

PKZ179-290200-
Pribilof Islands Near Shore Waters-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NW wind 25 kt. Seas 12 ft. Patchy fog.
.TONIGHT...NW wind 25 kt. Seas 11 ft.
.SUN...NE wind 20 kt. Seas 8 ft.
.SUN NIGHT...NE wind 35 kt. Seas 12 ft.
.MON...NE wind 40 kt. Seas 17 ft.
.TUE...N wind 25 kt. Seas 14 ft.
.WED...N wind 20 kt. Seas 9 ft.

$$

PKZ180-290200-
Kuskokwim Delta and Etolin Strait-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...N wind 30 kt. Seas 9 ft. Heavy freezing spray near the coast.
.TONIGHT...NW wind 30 kt. Seas 9 ft. Heavy freezing spray near the
coast.
.SUN...NW wind 25 kt. Seas 9 ft. Heavy freezing spray near the coast.
.SUN NIGHT...NE wind 30 kt. Seas 6 ft. Heavy freezing spray near the
coast.
.MON...NE wind 40 kt. Seas 12 ft. Heavy freezing spray near the coast.
.TUE...N wind 35 kt. Seas 11 ft. Heavy freezing spray near the coast.
.WED...N wind 30 kt. Seas 10 ft.

$$

PKZ181-290200-
North and West of Nunivak Island-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...N wind 25 kt. Seas 8 ft. Heavy freezing spray near the
coast. Snow showers.
.TONIGHT...NW wind 30 kt. Seas 10 ft. Heavy freezing spray near the
coast.
.SUN...N wind 25 kt. Seas 9 ft. Heavy freezing spray near the coast.
.SUN NIGHT...NE wind 25 kt. Seas 8 ft. Heavy freezing spray near the
coast.
.MON...NE wind 35 kt. Seas 11 ft. Heavy freezing spray near the coast.
.TUE...N wind 30 kt. Seas 11 ft. Heavy freezing spray near the coast.
.WED...N wind 25 kt. Seas 9 ft.

$$

PKZ185-290200-
Saint Matthew Island Waters-
353 AM AKST Sat Nov 28 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...N wind 25 kt. Seas 10 ft.
.TONIGHT...N wind 25 kt. Seas 10 ft. Freezing spray.
.SUN...N wind 25 kt. Seas 8 ft. Freezing spray.
.SUN NIGHT...NE wind 25 kt. Seas 7 ft.
.MON...N wind 30 kt. Seas 8 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.WED...N wind 20 kt. Seas 7 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion...UPDATED
National Weather Service Anchorage AK
831 PM AKST Thu Nov 26 2020

.ANALYSIS AND UPPER LEVELS...
A deep trough, anchored by a closed low over far eastern Russia,
is firmly entrenched over the entire Alaska region. A strong
zonal jet over the Pacific combined with a train of short-wave
troughs and abundant Arctic air is leading to a plethora of strong
and impactful storm systems.

Looking at satellite imagery there are four storms of note. A
potent short-wave and deepening surface low over the western Gulf
are tracking northward toward the Kenai Peninsula, with snow
overspreading the Kenai Pen and Prince William Sound and small
craft to gale force winds near the fairly compact low center. A
second short-wave and surface low over the North Pacific is
tracking northeastward into the southern Gulf, with small craft to
gale force winds accompanying it. Out west, there are two lows
approaching the Aleutians, a small compact one just west of Attu
and another larger low south of the chain tracking toward Adak.
While there is enough upper level forcing to cause both lows to
deepen, the low approaching Adak has much stronger baroclinicity
and is in a more favorable position ahead of a digging short-wave.
Conditions along the central to western Aleutians are rapidly
deteriorating as these storms approach, with rain, snow, and gale
to storm force winds.

In between the two sets of lows, a broad trough with numerous
embedded short-waves is producing widespread showers across the
Bering Sea region. Southwest Alaska is mostly dry, with some
some showers headed inland off the Bering Sea.

&&

.MODEL DISCUSSION...
Models have struggled mightily with track of the Gulf low. It
shifted from Prince William Sound in Wednesday morning's solutions
all the way west to the western Kenai Peninsula in this morning's
solutions. This necessitated a significant update to the wind and
snow forecast this morning. However, now that the low is well
formed, the forecast for Southcentral for tonight into Friday has
stabilized. Consistency with the track of the low headed into the
southern Gulf has also been quite poor. Prefer the NAM/GFS
solutions with a more consistent southerly track over the ECMWF
which lifts the low to the northeastern Gulf. Lastly, a trailing
short-wave results in interaction between the southern Gulf low
and the low headed for the Kenai Peninsula, with moisture
advection northward toward Prince William Sound. As the trough
approaches, expect a fairly narrow band of heavy precipitation
extending from the central Gulf northward to eastern Prince
William Sound. The challenge is figuring out where that band will
set up, because it has potential to produce a couple feet of snow.
Right now, it looks like it will be centered over eastern Prince
William Sound.

Out west, models continue to be grouped together with the two lows
along the Aleutians. However, small shifts from run-to-run and
differences among the models make it challenging to determine
where the strongest core of Hurricane Force winds will set up.
A High Wind warning is in effect for the Central Aleutians,
including Adak and Atka, but there is some question about whether
the strongest winds will hit there are track just south of the
islands. Minor differences in model low tracks persist all the way
through Saturday, though looking simply at the large scale there
is general agreement. In this very dynamic pattern, expect smaller
scale features will develop and make the difference in the local
forecast. Thus, overall forecast confidence is average to below
average.

&&

.AVIATION...
PANC...6Z TAF Update...There have been significant near term
model changes this afternoon/evening that have resulted in
increased snow chances for Anchorage later tonight into early
tomorrow. It now appears a convergence zone will set up along or
just to the west of Anchorage starting around 12Z tonight that
will bring increasing chances for IFR snows. If this band sets up
directly overhead there is a risk of some LIFR periods between 12z
and 20Z. Confidence on this time period is low with models not
settled on exactly where this heaviest band sets up just yet.
Conditions should improve after 20Z as this convergence zone moves
east of the area.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Tonight through Sunday)...

Two separate lows will at least bring mixed rain and snow through
the weekend. The first low lies to the northwest of Kodiak this
evening, which will trek northward along the Cook Inlet then
moving inland tonight and dissipating. The amount of snow and rain
from this system will vary across the region through Friday, with
the most snow accumulation up to 10 to 14 inches near higher
elevations over the western Prince William Sound (PWS) tonight.
The next developing storm from the Bering will bring another round
of snow on Saturday over Kenai Peninsula and much of Southcentral
Alaska between Saturday and Sunday. At Kodiak Island, scattered to
widespread rain is expected Friday night through Saturday night,
including snow showers.

Cold air advection from the north combined with more cold air
from behind the first low in conjunction with strong winds will
generate freezing spray over the Cook Inlet and Turnagain Arm
tonight through Friday morning. These same spots will see another
episode of freezing spray as the next major storm and its frontal
boundary enters the southwestern Gulf Friday and Friday night.
Overall, an active mixed snow/rain pattern and associated strong
winds along the frontal boundary and lows will continue for the
next couple days.

&&

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

Snow showers across Southwest Alaska will continue to taper off
this evening into Friday morning. Chances for snow increase Friday
afternoon for the Alaska Peninsula and Bristol Bay as a low
pressure system moves eastward staying below the Alaska Peninsula.
Cold temperatures over the next few days will keep snow as the
main precipitation type across the mainland, with a few inches of
snowfall possible across the Bristol Bay region. By Saturday
afternoon, snow showers across the area will start to diminish as
the aforementioned low pressure systems continues into the Gulf.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

A strengthening low just south of Adak will continue to move along
the Aleutian Chain, bringing a swatch of hurricane force winds. A
High Wind Warning remains in effect for the central Aleutians,
including Adak and Atka, which could see strong winds and gusts
associated with this system. However, today's model runs have
shifted the system farther south, keeping the strongest core of
hurricane force winds south of the Chain. High seas and
widespread precipitation will also accompany this system as it
works its way eastward moving south of the Alaska Peninsula
through Saturday morning. A secondary storm force low develops
behind this first system over the western Bering on Friday, which
will then track over the central Aleutians and weaken by Saturday
afternoon.

As one systems exits eastward into the Gulf on Sunday, another
strong low pressure system approaches the western Aleutians and
Bering by Sunday morning. Models are in good agreement with
placement and strength of this next system, which will likely
bring another storm force front to the forecast area, with the low
center moving south of Adak by Sunday afternoon.

&&

.MARINE (Days 3 through 5/Sunday through Tuesday)...

Gulf: The active pattern continues with high winds and waves
following back to back storms into the Gulf. A gale force low
will move into the Gulf Saturday afternoon, expected to dissipate
throughout the day on Sunday. Monday morning, a front associated
with a low south of the Chain will enter the western Gulf. This
system could bring storm force winds as it propagates towards the
northern Gulf Coast with a barrier jet looking to set up Monday
evening. After this, strong southerly flow will overtake the Gulf
Tuesday morning, expected to dissipate throughout the day.

Bering: A large and strong area of low pressure looks to skirt the
Chain beginning on Sunday morning bringing with it the potential
for storm force winds and waves. Expect high winds and waves into
the central Bering between Sunday morning and Tuesday afternoon.
Tuesday evening, most of the high winds and waves look to remain
confined to the eastern Aleutians and Bering which should begin
to dissipate through Wednesday. After this, there looks to be a
short break in the active pattern through Thursday with calm winds
and seas.

&&

.LONG TERM FORECAST (Days 4 through 7/Monday through
Thursday)...

The active weather pattern continues throughout the long term.
Precipitation will continue for the northern Gulf Coast with snow
for the higher elevations on Monday, as an area of low pressure
continues to weaken as it moves further inland. Temperatures look
to remain warm with this feature, with rain expected for the lower
elevations and snow for the highest elevations. Right behind this
is a front associated with a low in the North Pacific, bringing
another round of precipitation to Kodiak Island and then to the
coastal areas Monday afternoon, along with an increase in winds.
Expect precipitation to make its way inland Monday evening with
this front. Temperatures aloft look to remain relatively warm,
with rainfall looking to be the dominant precipitation type with
this system. We look to dry out a bit after this, with
precipitation mostly remaining across the coastal locations and
higher elevations Wednesday. This looks to continue through
Thursday, with an increase in precipitation expected, as another
low is anticipated to move from the southern Gulf into Prince
William Sound. This could switch rain, from the previous low, to
snow as warm air is replaced by cold air.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...
Hurricane Force Wind Warning: 172,174,176
Storm Warning: 155,173,175,177,178,411
Gale Warning:
119,120,130,131,132,136,138,139,140,150,160,165,170,180,351,352,413,414
Heavy Freezing Spray: 180,181
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...SB
SOUTHCENTRAL ALASKA...CB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...AH
MARINE/LONG TERM...KM/CK