Hurricane Force Wind Warning 4, NWS Anchorage, AK

967 
FZAK52 PAFC 292355
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 PM AKDT Sat Aug 29 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.

PKZ199-301230-
355 PM AKDT Sat Aug 29 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 981 mb low 220 nm west of Adak and a 980 mb North Pacific low 
400 nm south of Adak Sat afternoon merge near 120 nm west of Dutch
Harbor at 968 mb by Sun morning. This low then moves inland near 
Cape Newenham at 964 mb by Sun afternoon. The associated front 
weakens across the central Bering through Mon afternoon.

$$

PKZ150-301230-
South of the AK Peninsula Sitkinak to Castle Cape-
355 PM AKDT Sat Aug 29 2020

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

.TONIGHT...SW wind 25 kt. Seas 11 ft.
.SUN...SW wind 45 kt. Seas 13 ft building to 18 ft in the
afternoon. Rain.
.SUN NIGHT...SW wind 40 kt. Seas 22 ft.
.MON...SW wind 35 kt. Seas 20 ft.
.MON NIGHT...SW wind 30 kt. Seas 15 ft.
.TUE...W wind 25 kt. Seas 13 ft.
.WED THROUGH THU...W wind 20 kt. Seas 7 ft.

$$

PKZ155-301230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 PM AKDT Sat Aug 29 2020

...STORM WARNING SUNDAY...

.TONIGHT...SW wind 25 kt becoming S 45 kt after midnight. From the
Shumagin Islands E, S wind 30 kt. Seas 14 ft.
.SUN...SW wind 55 kt gusting to 65 kt diminishing to 50 kt gusting 
to 60 kt in the afternoon, Seas 26 ft. From the Shumagin Islands E, 
SW wind 50 kt gusting to 60 kt, Seas 15 ft building to 22 ft in the 
afternoon.
.SUN NIGHT...SW wind 40 kt. Seas 23 ft.
.MON...SW wind 35 kt. Seas 18 ft.
.MON NIGHT...W wind 30 kt. Seas 13 ft.
.TUE...W wind 20 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 5 ft.

$$

PKZ160-301230-
Bristol Bay-
355 PM AKDT Sat Aug 29 2020

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

.TONIGHT...S wind 20 kt. Seas 5 ft.
.SUN...SE wind 40 kt becoming S 55 kt with gusts to 65 kt in the 
afternoon. Seas 7 ft building to 14 ft in the afternoon. Rain.
.SUN NIGHT...SW wind 50 kt gusting to 65 kt diminishing to 40 kt
gusting to 55 kt after midnight. Seas 18 ft. Rain. Winds will be
locally higher near capes and gaps. 
.MON...SW wind 30 kt. Seas 13 ft.
.MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 7 ft.
.WED THROUGH THU...W wind 15 kt. Seas 4 ft.

$$

PKZ165-301230-
Port Heiden to Cape Sarichef-
355 PM AKDT Sat Aug 29 2020

...STORM WARNING SUNDAY...

.TONIGHT...SW wind 20 kt becoming S 30 kt after midnight. Seas 6 ft.
.SUN...SW wind 55 kt gusting to 65 kt. Seas 10 ft building to 18 ft 
in the afternoon. Rain.
.SUN NIGHT...SW wind 45 kt diminishing to 35 kt after midnight.
Seas 18 ft.
.MON AND MON NIGHT...W wind 30 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 4 ft.

$$

PKZ170-301230-
Cape Sarichef to Nikolski Bering Side-
355 PM AKDT Sat Aug 29 2020

...STORM WARNING SUNDAY...

.TONIGHT...S wind 25 kt becoming SE 40 kt after midnight. Seas 8 ft.
.SUN...W wind 50 kt with gusts to 60 kt becoming SW 40 kt in the 
afternoon. Seas 12 ft.
.SUN NIGHT...SW wind 30 kt becoming W 20 kt after midnight. Seas
10 ft.
.MON AND MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ171-301230-
Unalaska Bay-
355 PM AKDT Sat Aug 29 2020

...STORM WARNING SUNDAY...

.TONIGHT...S wind 15 kt becoming SE 30 kt after midnight. Seas 2
ft building to 5 ft after midnight. Rain showers.
.SUN...SW wind 55 kt gusting to 65 kt diminishing to 30 kt in the 
afternoon. Seas 8 ft subsiding to 5 ft in the afternoon.
.SUN NIGHT...SW wind 20 kt. Seas 3 ft.
.MON...W wind 20 kt. Seas 3 ft.
.MON NIGHT...W wind 15 kt. Seas 2 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 2 ft.
.THU...SW wind 10 kt. Seas 2 ft.

$$

PKZ172-301230-
Cape Sarichef to Nikolski Pacific Side-
355 PM AKDT Sat Aug 29 2020

...HURRICANE FORCE WIND WARNING THROUGH SUNDAY...

.TONIGHT...S wind 25 kt increasing to 65 kt with gusts up to 70 kt 
after midnight. Seas 13 ft building to 22 ft after midnight.
.SUN...SW wind 65 kt with gusts to 70 kt diminishing to 40 kt in the
afternoon. Seas 29 ft.
.SUN NIGHT...SW wind 35 kt. Seas 19 ft.
.MON...W wind 30 kt. Seas 15 ft.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

PKZ173-301230-
Nikolski to Seguam Island Bering Side-
355 PM AKDT Sat Aug 29 2020

...GALE WARNING TONIGHT...

.TONIGHT...S wind 25 kt becoming SW 35 kt after midnight. Seas 9 ft.
.SUN...SW wind 30 kt. Seas 10 ft.
.SUN NIGHT...SW wind 25 kt. Seas 9 ft.
.MON...W wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 15 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...S wind 15 kt. Seas 3 ft.

$$

PKZ174-301230-
Nikolski to Seguam Island Pacific Side-
355 PM AKDT Sat Aug 29 2020

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S wind 30 kt becoming W 45 kt after midnight. Seas 17
ft. Widespread rain showers.
.SUN...SW wind 35 kt. Seas 19 ft.
.SUN NIGHT...SW wind 30 kt. Seas 17 ft.
.MON...W wind 20 kt. Seas 13 ft.
.MON NIGHT...W wind 15 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

PKZ175-301230-
Seguam Island to Adak Bering Side-
355 PM AKDT Sat Aug 29 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 7 ft.
.SUN...SW wind 25 kt. Seas 7 ft.
.SUN NIGHT...NW wind 20 kt. Seas 8 ft.
.MON...NW wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...S wind 15 kt. Seas 4 ft.

$$

PKZ176-301230-
Seguam Island to Adak Pacific Side-
355 PM AKDT Sat Aug 29 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 25 kt increasing to 35 kt after midnight. Seas
13 ft.
.SUN...SW wind 30 kt. Seas 14 ft.
.SUN NIGHT...W wind 30 kt diminishing to 20 kt after midnight.
Seas 15 ft.
.MON AND MON NIGHT...W wind 15 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ177-301230-
Adak to Kiska-
355 PM AKDT Sat Aug 29 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 8 ft.
.SUN...NW wind 25 kt. Seas 12 ft.
.SUN NIGHT...NW wind 25 kt. Seas 12 ft.
.MON...NW wind 15 kt. Seas 9 ft.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE THROUGH THU...SW wind 20 kt. Seas 7 ft.

$$

PKZ178-301230-
Kiska to Attu-
355 PM AKDT Sat Aug 29 2020

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 15 ft.
.SUN...N wind 30 kt. Seas 15 ft.
.SUN NIGHT...N wind 25 kt. Seas 12 ft.
.MON AND MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...SW wind 20 kt. Seas 7 ft.
.WED THROUGH THU...W wind 25 kt. Seas 10 ft.

$$

PKZ179-301230-
Pribilof Islands Near Shore Waters-
355 PM AKDT Sat Aug 29 2020

...SMALL CRAFT ADVISORY SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SE wind 15 kt. Seas 7 ft. Widespread rain showers.
.SUN...NE wind 25 kt. Seas 8 ft. Rain.
.SUN NIGHT...W wind 20 kt. Seas 9 ft.
.MON AND MON NIGHT...W wind 25 kt. Seas 10 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ180-301230-
Kuskokwim Delta and Etolin Strait-
355 PM AKDT Sat Aug 29 2020

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

.TONIGHT...SE wind 25 kt. Seas 8 ft.
.SUN...E wind 40 kt. Seas 11 ft. Rain. Winds will be
locally higher near capes and gaps. 
.SUN NIGHT...NW wind 45 kt becoming W 35 kt after midnight. Seas
12 ft. Winds will be locally higher near capes and gaps. 
.MON...W wind 30 kt. Seas 10 ft.
.MON NIGHT...W wind 25 kt. Seas 8 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU...W wind 15 kt. Seas 3 ft.

$$

PKZ181-301230-
North and West of Nunivak Island-
355 PM AKDT Sat Aug 29 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 6 ft.
.SUN...NE wind 30 kt. Seas 8 ft.
.SUN NIGHT...N wind 25 kt. Seas 7 ft.
.MON AND MON NIGHT...NW wind 25 kt. Seas 9 ft.
.TUE THROUGH WED...W wind 20 kt. Seas 6 ft.
.THU...NW wind 15 kt. Seas 3 ft.

$$

PKZ185-301230-
Saint Matthew Island Waters-
355 PM AKDT Sat Aug 29 2020

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.SUN...NE wind 30 kt. Seas 11 ft.
.SUN NIGHT...N wind 30 kt. Seas 13 ft.
.MON AND MON NIGHT...NW wind 25 kt. Seas 11 ft.
.TUE...NW wind 20 kt. Seas 8 ft.
.WED THROUGH THU...N wind 15 kt. Seas 5 ft.

$$

335 
FZAK52 PAFC 301152
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
352 AM AKDT Sun Aug 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.

PKZ199-310115-
352 AM AKDT Sun Aug 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 964 low near Umnak Island moves inland near Cape Newenham by 
this evening. The associated front weakens across the central 
Bering through Mon afternoon.

$$

PKZ150-310115-
South of the AK Peninsula Sitkinak to Castle Cape-
352 AM AKDT Sun Aug 30 2020

...GALE WARNING THROUGH MONDAY...

.TODAY...SW wind 35 kt this morning increasing to 45 kt. Seas 13 ft 
building to 18 ft in the afternoon.
.TONIGHT...SW wind 40 kt. Seas 22 ft.
.MON...SW wind 35 kt. Seas 20 ft.
.MON NIGHT...SW wind 30 kt. Seas 15 ft.
.TUE...W wind 25 kt. Seas 13 ft.
.WED...W wind 20 kt. Seas 8 ft.
.THU...W wind 15 kt. Seas 5 ft.

$$

PKZ155-310115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
352 AM AKDT Sun Aug 30 2020

...STORM WARNING TODAY...

.TODAY...SW wind 55 kt gusting to 65 kt diminishing to 50 kt gusting 
to 60 kt in the afternoon, Seas 26 ft. From the Shumagin Islands E, 
SW wind 50 kt gusting to 60 kt, Seas 15 ft building to 22 ft in the 
afternoon.
.TONIGHT...SW wind 40 kt. Seas 23 ft.
.MON...SW wind 35 kt. Seas 18 ft.
.MON NIGHT...W wind 30 kt. Seas 13 ft.
.TUE...W wind 20 kt. Seas 11 ft.
.WED...W wind 20 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 5 ft.

$$

PKZ160-310115-
Bristol Bay-
352 AM AKDT Sun Aug 30 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 40 kt becoming S 55 kt with gusts to 65 kt in the 
afternoon. Seas 7 ft building to 14 ft in the afternoon. Rain.
.TONIGHT...SW wind 50 kt gusting to 65 kt diminishing to 40 kt
gusting to 55 kt after midnight. Seas 18 ft. Rain. Winds will be
locally higher near capes and gaps. 
.MON...SW wind 30 kt. Seas 13 ft subsiding to 9 ft in the
afternoon.
.MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 7 ft.
.WED THROUGH THU...W wind 15 kt. Seas 4 ft.

$$

PKZ165-310115-
Port Heiden to Cape Sarichef-
352 AM AKDT Sun Aug 30 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SW wind 55 kt gusting to 65 kt. Seas 10 ft building to 18 ft 
in the afternoon. Rain.
.TONIGHT...SW wind 55 kt diminishing to 35 kt after midnight. Seas 
18 ft.
.MON...SW wind 30 kt. Seas 10 ft.
.MON NIGHT...W wind 30 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

PKZ170-310115-
Cape Sarichef to Nikolski Bering Side-
352 AM AKDT Sun Aug 30 2020

...STORM WARNING TODAY...

.TODAY...W wind 50 kt with gusts to 60 kt becoming SW 40 kt in the 
afternoon. Seas 12 ft.
.TONIGHT...SW wind 30 kt becoming W 20 kt after midnight. Seas
10 ft.
.MON AND MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...W wind 15 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 4 ft.

$$

PKZ171-310115-
Unalaska Bay-
352 AM AKDT Sun Aug 30 2020

...STORM WARNING TODAY...

.TODAY...SW wind 55 kt gusting to 65 kt diminishing to 30 kt in the 
afternoon. Seas 8 ft subsiding to 5 ft in the afternoon.
.TONIGHT...SW wind 20 kt. Seas 3 ft. Rain showers.
.MON...W wind 20 kt. Seas 3 ft.
.MON NIGHT...W wind 15 kt. Seas 2 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 2 ft.
.THU...S wind 15 kt. Seas 2 ft.

$$

PKZ172-310115-
Cape Sarichef to Nikolski Pacific Side-
352 AM AKDT Sun Aug 30 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SW wind 65 kt with gusts to 70 kt diminishing to 40 kt in the
afternoon. Seas 29 ft.
.TONIGHT...SW wind 35 kt. Seas 19 ft.
.MON...W wind 30 kt. Seas 15 ft.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wiSW wind 65 kt with gusts to 70 kt diminishing to 40 kt in the
afternoon. Seas 29 ft.nd 20 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

PKZ173-310115-
Nikolski to Seguam Island Bering Side-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 30 kt. Seas 10 ft.
.TONIGHT...SW wind 25 kt. Seas 9 ft.
.MON...W wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 15 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 4 ft.

$$

PKZ174-310115-
Nikolski to Seguam Island Pacific Side-
352 AM AKDT Sun Aug 30 2020

...GALE WARNING TODAY...

.TODAY...SW wind 35 kt. Seas 19 ft.
.TONIGHT...SW wind 30 kt. Seas 17 ft.
.MON...W wind 20 kt. Seas 13 ft.
.MON NIGHT...W wind 15 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 10 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 5 ft.

$$

PKZ175-310115-
Seguam Island to Adak Bering Side-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 25 kt. Seas 7 ft.
.TONIGHT...NW wind 20 kt. Seas 8 ft.
.MON...NW wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.

$$

PKZ176-310115-
Seguam Island to Adak Pacific Side-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...W wind 30 kt diminishing to 20 kt after midnight. Seas
15 ft.
.MON...NW wind 15 kt. Seas 10 ft.
.MON NIGHT...W wind 15 kt. Seas 7 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 6 ft.

$$

PKZ177-310115-
Adak to Kiska-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NW wind 25 kt. Seas 12 ft.
.TONIGHT...NW wind 25 kt. Seas 12 ft.
.MON...NW wind 15 kt. Seas 9 ft.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 7 ft.
.THU...SW wind 15 kt. Seas 8 ft.

$$

PKZ178-310115-
Kiska to Attu-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...N wind 30 kt. Seas 15 ft.
.TONIGHT...N wind 25 kt. Seas 12 ft.
.MON...NW wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE THROUGH WED...SW wind 20 kt. Seas 9 ft.
.THU...N wind 15 kt. Seas 10 ft.

$$

PKZ179-310115-
Pribilof Islands Near Shore Waters-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...E wind 20 kt this morning becoming N 20 kt. Seas 8 ft. 
Rain.
.TONIGHT...W wind 20 kt. Seas 9 ft.
.MON...NW wind 25 kt. Seas 10 ft. Rain showers.
.MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE THROUGH WED...W wind 15 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 4 ft.

$$

PKZ180-310115-
Kuskokwim Delta and Etolin Strait-
352 AM AKDT Sun Aug 30 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 40 kt. Seas 11 ft. Rain. Winds will be locally 
higher near capes and gaps. 
.TONIGHT...NW wind 45 kt becoming W 35 kt after midnight. Seas
12 ft. Winds will be locally higher near capes and gaps. 
.MON...W wind 30 kt. Seas 10 ft.
.MON NIGHT...W wind 25 kt. Seas 8 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 3 ft.

$$

PKZ181-310115-
North and West of Nunivak Island-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt. Seas 8 ft. Rain.
.TONIGHT...N wind 25 kt. Seas 7 ft.
.MON...NW wind 25 kt. Seas 8 ft.
.MON NIGHT...NW wind 25 kt. Seas 9 ft.
.TUE...NW wind 20 kt. Seas 7 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 3 ft.

$$

PKZ185-310115-
Saint Matthew Island Waters-
352 AM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...NE wind 30 kt. Seas 11 ft.
.TONIGHT...N wind 30 kt. Seas 13 ft.
.MON...N wind 25 kt. Seas 12 ft.
.MON NIGHT...NW wind 25 kt. Seas 10 ft.
.TUE...NW wind 20 kt. Seas 8 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.

$$

020 
FZAK52 PAFC 302358
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
358 PM AKDT Sun Aug 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.

PKZ199-311245-
358 PM AKDT Sun Aug 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 959 mb low 25 nm miles southwest of Cape Newenham moves inland 
this evening. The associated front weakens across the Bering 
through Mon night.

$$

PKZ150-311245-
South of the AK Peninsula Sitkinak to Castle Cape-
358 PM AKDT Sun Aug 30 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SW wind 45 kt diminishing to 35 kt after midnight. Seas 
23 ft.
.MON...SW wind 35 kt. Seas 22 ft.
.MON NIGHT...SW wind 30 kt. Seas 16 ft.
.TUE...W wind 25 kt. Seas 14 ft.
.TUE NIGHT...W wind 15 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI...Variable wind 10 kt. Seas 4 ft.

$$

PKZ155-311245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
358 PM AKDT Sun Aug 30 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 45 kt diminishing to 35 kt after midnight. Seas 
24 ft.
.MON...SW wind 30 kt. Seas 19 ft subsiding to 14 ft in the afternoon.
.MON NIGHT...W wind 30 kt. Seas 14 ft.
.TUE...W wind 20 kt. Seas 11 ft.
.TUE NIGHT...W wind 15 kt. Seas 7 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI...SE wind 15 kt. Seas 4 ft.

$$

PKZ160-311245-
Bristol Bay-
358 PM AKDT Sun Aug 30 2020

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 55 kt gusting to 65 kt diminishing to 45 kt
gusting to 55 kt after midnight. Seas 25 ft in the evening subsiding
to 17 ft. Widespread rain showers. Winds will be locally higher near
capes and gaps.
.MON...SW wind 35 kt diminishing to 25 kt in the afternoon. Seas 17 
ft subsiding to 10 ft in the afternoon.
.MON NIGHT...W wind 25 kt. Seas 8 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.TUE NIGHT...W wind 20 kt. Seas 5 ft.
.WED THROUGH THU...W wind 15 kt. Seas 4 ft.
.FRI...S wind 10 kt. Seas 3 ft.

$$

PKZ165-311245-
Port Heiden to Cape Sarichef-
358 PM AKDT Sun Aug 30 2020

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 45 kt diminishing to 35 kt after midnight. From
Port Moller E, SW wind 50 kt with gusts to 60 kt diminishing to 40 
kt after midnight. Seas 24 ft subsiding to 17 ft after midnight. Rain
showers.
.MON...SW wind 30 kt. Seas 11 ft.
.MON NIGHT...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 8 ft.
.TUE NIGHT...W wind 15 kt. Seas 5 ft.
.WED...NW wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 4 ft.

$$

PKZ170-311245-
Cape Sarichef to Nikolski Bering Side-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...SW wind 30 kt. Seas 13 ft subsiding to 8 ft after
midnight.
.MON...W wind 30 kt. Seas 10 ft.
.MON NIGHT...W wind 30 kt diminishing to 20 kt after midnight. Seas 
11 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 7 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 20 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 4 ft.

$$

PKZ171-311245-
Unalaska Bay-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...SW wind 20 kt. Seas 3 ft. Rain showers.
.MON...W wind 20 kt increasing to 30 kt in the afternoon. Seas 3
ft building to 5 ft in the afternoon.
.MON NIGHT...W wind 30 kt diminishing to 20 kt after midnight.
Seas 5 ft subsiding to 3 ft after midnight.
.TUE...W wind 10 kt. Seas 3 ft.
.TUE NIGHT...W wind 15 kt. Seas 2 ft.
.WED...W wind 15 kt. Seas 4 ft.
.THU...S wind 15 kt. Seas 2 ft.
.FRI...SE wind 10 kt. Seas 2 ft.

$$

PKZ172-311245-
Cape Sarichef to Nikolski Pacific Side-
358 PM AKDT Sun Aug 30 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 20 ft.
.MON...W wind 30 kt. Seas 15 ft.
.MON NIGHT...W wind 25 kt. Seas 11 ft.
.TUE...W wind 15 kt. Seas 8 ft.
.TUE NIGHT...W wind 20 kt. Seas 6 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.
.FRI...SE wind 15 kt. Seas 5 ft.

$$

PKZ173-311245-
Nikolski to Seguam Island Bering Side-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...W wind 25 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 10 ft.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind 15 kt. Seas 8 ft.
.TUE NIGHT...W wind 20 kt. Seas 7 ft.
.WED...W wind 20 kt. Seas 6 ft.
.THU...SW wind 20 kt. Seas 4 ft.
.FRI...Variable wind 10 kt. Seas 4 ft.

$$

PKZ174-311245-
Nikolski to Seguam Island Pacific Side-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...W wind 30 kt diminishing to 20 kt after midnight. Seas 16
ft.
.MON...W wind 20 kt. Seas 12 ft.
.MON NIGHT...W wind 20 kt. Seas 10 ft.
.TUE...W wind 15 kt. Seas 8 ft.
.TUE NIGHT...W wind 20 kt. Seas 7 ft.
.WED...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.FRI...Variable wind 10 kt. Seas 5 ft.

$$

PKZ175-311245-
Seguam Island to Adak Bering Side-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...NW wind 20 kt. Seas 9 ft.
.MON...W wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 15 kt. Seas 9 ft.
.TUE AND TUE NIGHT...NW wind 20 kt. Seas 7 ft.
.WED...W wind 20 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.
.FRI...Variable wind 10 kt. Seas 4 ft.

$$

PKZ176-311245-
Seguam Island to Adak Pacific Side-
358 PM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...W wind 25 kt. Seas 13 ft.
.MON...NW wind 20 kt. Seas 10 ft.
.MON NIGHT...W wind 15 kt. Seas 7 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.TUE NIGHT...W wind 25 kt. Seas 6 ft.
.WED...W wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 6 ft.
.FRI...Variable wind 10 kt. Seas 6 ft.

$$

PKZ177-311245-
Adak to Kiska-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...NW wind 20 kt. Seas 11 ft.
.MON...NW wind 20 kt. Seas 9 ft.
.MON NIGHT...W wind 20 kt. Seas 8 ft.
.TUE AND TUE NIGHT...W wind 20 kt. Seas 7 ft.
.WED THROUGH THU...SW wind 15 kt. Seas 7 ft.
.FRI...NE wind 15 kt. Seas 5 ft.

$$

PKZ178-311245-
Kiska to Attu-
358 PM AKDT Sun Aug 30 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...NW wind 20 kt. Seas 10 ft.
.MON...W wind 20 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 7 ft.
.TUE...W wind 20 kt. Seas 7 ft.
.TUE NIGHT...W wind 15 kt. Seas 6 ft.
.WED...SW wind 20 kt. Seas 10 ft.
.THU THROUGH FRI...N wind 15 kt. Seas 9 ft.

$$

PKZ179-311245-
Pribilof Islands Near Shore Waters-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...NW wind 25 kt. Seas 10 ft.
.MON...NW wind 25 kt. Seas 11 ft. Rain.
.MON NIGHT...NW wind 20 kt. Seas 9 ft.
.TUE...NW wind 15 kt. Seas 6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 4 ft.
.THU THROUGH FRI...Variable wind 10 kt. Seas 4 ft.

$$

PKZ180-311245-
Kuskokwim Delta and Etolin Strait-
358 PM AKDT Sun Aug 30 2020

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 45 kt diminishing to 35 kt after 
midnight S of Cape Newenham, NE wind 35 kt shifting to NW wind and 
diminishing to 25 kt N of Cape Newenham. Seas 23 ft subsiding to 16
ft after midnight S of Cape Newenham, Seas 8 ft N of Cape Newenham. 
Rain showers.
.MON...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
11 ft.
.MON NIGHT...NW wind 25 kt. Seas 8 ft.
.TUE...NW wind 20 kt. Seas 8 ft.
.TUE NIGHT...NW wind 10 kt. Seas 4 ft.
.WED...NW wind 15 kt. Seas 4 ft.
.THU...SW wind 15 kt. Seas 3 ft.
.FRI...SE wind 10 kt. Seas 4 ft.

$$

PKZ181-311245-
North and West of Nunivak Island-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...N wind 30 kt. Seas 8 ft.
.MON...N wind 25 kt. Seas 8 ft.
.MON NIGHT...NW wind 25 kt. Seas 8 ft.
.TUE...NW wind 20 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.FRI...Variable wind 10 kt. Seas 3 ft.

$$

PKZ185-311245-
Saint Matthew Island Waters-
358 PM AKDT Sun Aug 30 2020

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

.TONIGHT...N wind 30 kt. Seas 13 ft.
.MON...N wind 25 kt. Seas 11 ft.
.MON NIGHT...N wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 5 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI...Variable wind 10 kt. Seas 5 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
505 PM AKDT Fri Aug 28 2020

.ANALYSIS AND UPPER LEVELS...

Weak upper trough over the north Gulf to across the Copper River
Basin is producing some scattered clouds with a few showers.
Patchy stratus and fog evident over Kachemak Bay and and over Knik
Arm this morning is rapidly burning off. The remainder of
Southcentral is under generally fair skies with light winds and
coastal seabreezes. Ridging over Southwest Alaska produced
widespread stratus and some fog over the Kuskokwim Delta and
portions of eastern Bristol Bay. A strong low near the western
Aleutians had a frontal zone extending to the eastern Aleutians
and then south to over north Pacific. Strong easterly winds were
observed on the leading edge of the frontal zone and on the
northern and western periphery of the low.

&&

.MODEL DISCUSSION...
Models synoptically are in general agreement. The models though
have struggled with the positioning of the remnants of Typhoon
Bavi as it moves north of the Alaska Peninsula Sunday. The NAM
keeps the low center further west than the GFS, ECMWF, and
Canadian and is the outlier. For now will go with the remaining
model consensus toward a more eastward track.

&&

.AVIATION...
PANC...Patchy shallow fog could develop during the early morning
hours, producing brief periods of IFR conditions. The Turnagain
Arm wind will move into the area Saturday afternoon, but will
shift back south in the evening. Rain shower activity will become
increasingly common Saturday evening, which could bring visibility
and ceilings to MVFR conditions. Looking further out, there is
potential for stronger winds Sunday evening.

&&

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

Expecting another day of nice fall-like weather for Southcentral
on Saturday before two frontal systems move through the area
bringing strong winds and rain through Monday. The first front to
impact Southcentral extends eastward from a low pressure system
over the Central Aleutians. This front is expected to reach Kodiak
Island Saturday morning and then push north towards the Kenai
Peninsula Saturday night. Steady rain is expected along the
western Kenai Peninsula and northern Gulf Coast as the front
moves in and then stalls.

Convergence along the northern Gulf Coast should lead
to coastal ridging and strong winds through the mountain passes
and into the Turnagain and Knik Arms starting Saturday evening.
The Turnagain Arm winds should turn into the Anchorage area
Saturday afternoon/evening due to a weak thermal trough setting up
over the Susitna Valley. Overnight Saturday/early Sunday morning
these winds should move back over the Arm and down-inlet as the
thermal trough breaks down; however, the Anchorage Hillside is
likely to have strong winds through Monday.

The second front is expected to bring another round of wind and
rain across Southcentral Sunday and Monday. The parent low
is the first large storm system of this fall storm season and is
expected to move over Bristol Bay Sunday afternoon. With this
weather pattern a deep southwesterly moisture fetch is expected
to setup over Southcentral. This should reinforce rain from the
first frontal system along the northern Gulf Coast as well as
provide the southwesterly moisture fetch needed to bring rainfall
to the Anchorage area, western Kenai, and up into the Susitna
Valley. Rainfall totals through Monday over the northern Gulf
Coast may reach up to 2.5 inches in areas like Seward and Cordova.
As for winds, strong up-inlet flow is expected to develop by
Monday morning, which will help to bring the strong winds off of
the Turnagain Arm back into Anchorage.

&&

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

The pattern is becoming more active across southwest Alaska as a
warm front moves through on Saturday and Saturday night and
brings a steady rain to the area. The heaviest rain bands are
expected to occur over Bristol Bay which is where the highest
total rainfall amounts are expected. Rainfall amounts will range
between 0.5" and 0.75" across central Bristol Bay with rainfall
amounts dropping off rapidly to the north and west. The bulk of
the rain is expected to miss the Kuskokwim Delta where rainfall
amounts between 0.05" and 0.15" are expected.

Southeasterly winds will increase Saturday night into Sunday
morning ahead of the first large storm of the season. The
strongest winds will occur along Cape Newenham and Cape
Constantine due to the localized funneling of winds. High end gale
force winds with storm force gusts are expected in those areas.
Another area that will have localized funneling is Kamishak Gap.
High end gale force winds with storm force gusts are expected in
Kamishak Gap mid-day on Sunday. Winds will gradually ease in
Kamishak Gap Sunday afternoon as the winds veer southerly and
then southwesterly. The heaviest rainfall will be when the center
of the storm moves over Southwest Alaska Sunday morning and
afternoon with the highest rainfall amounts above 1.00" in the
Ahklun Mountains due to upslope. An additional 0.75" to 1.00" of
rain is expected across Bristol Bay and between 0.5" and 0.75" of
additional rainfall is expected in the Kuskokwim Valley. The
precipitation associated with this storm will be stratiform which
will inhibit any chance of convective thunderstorms over
southwestern Alaska. Winds will gradually ease on Monday as the
rain gradually tapers off from west to east.

A Coastal Flood Watch has been issued for Bristol Bay from Sunday
evening through Monday morning due to the potential for water
levels to rise 2 to 4 feet above highest astronomical tide as
strong southwesterly onshore flow is expected at that time.

&&

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

The first large storm system of the season is expected to form in
the western Bering Saturday night as the post-tropical remnants of
Typhoon Bavi merge with an upper level low. This will result in a
rapidly strengthening low pressure system that is expected to
track eastward into Bristol Bay by Sunday afternoon. Widespread
gale force winds are expected with this storm with areas of storm
force winds along the central to eastern Aleutians and Bristol Bay
Saturday night through Sunday afternoon. In addition to storm
force winds, high seas between 20-25ft are expected south of the
Aleutians as storm force winds combined with large fetch will
create favorable conditions for high seas to build. These seas
can be locally higher at times as the west-southwesterly winds and
primary swell will oppose the east-northeasterly currents which
can locally stack the seas and shorten the wave periods. Winds may
also be locally higher in the bays and passes along the Aleutian
Chain ahead of the center of the low as those gaps are prone to
funneling from the south. Winds will then gradually ease from west
to east across the Bering/Aleutians Sunday afternoon onward. Seas
will also gradually abate from west to east Sunday afternoon
onward.

This storm will also bring ample rainfall in the Aleutians with
the highest rainfall amounts expected in the Central to Eastern
Aleutians on the windward side of the mountains.

&&

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

Gulf of Alaska: For the Monday morning into Monday evening time
period the Gulf of Alaska especially the western side will
continue to be experiencing southwesterly gale force winds as a
tight pressure gradient remains across the region. Gale force
winds will subside to small crafts overnight along with
diminishing waves as the pressure gradient eases. These winds
and waves will continue to further diminish throughout the day
Tuesday. A fairly benign pattern is expected for Wednesday with
generally light winds and low waves. However, this time period
for Wednesday is being watched as some model guidance is showing a
system moving up into the eastern Gulf of Alaska with increased
winds and waves potentially. The strength, track, and intensity
remain uncertain at this time and will be fine tuned in the coming
days.

Bering Sea and Aleutians: The beginning of the forecast period
will feature a mainly northerly to northwesterly wind flow regime
on the back side of the low pressure on Monday. Small craft
advisory criteria winds are expected through at least Monday
evening especially across the eastern Bering Sea to Bristol Bay.
The overall trend beyond Monday evening will be continued
diminishing winds and waves as a more benign pattern sets up for
Tuesday into Wednesday. Model guidance is hinting at an upper
level disturbance moving through the western Bering/Aleutians
Tuesday into Wednesday that may bring a slight uptick in winds to
maybe low end small crafts. This will continue to be monitored.

&&

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

Upper level troughing is expected to dominate much of the long
term forecast period with multiple upper level waves moving
through the flow. This will support a showery, wet, and cool
pattern for much of Mainland Alaska and the Bering Sea/Aleutians.
The timing, strength, and intensity of these individual waves will
be fine tuned each day as the new model guidance comes in. Towards
the very end of the period, model guidance is hinting at some
upper level ridging nudging northward into Southcentral Alaska
east to the AlCAN border and Southeast Alaska. The placement of
this upper level ridging is very uncertain at this time with the
apex being over Southeast Alaska or over the North Pacific. This
will affect the sensible weather if it is further west, it would
provide a respite from the wet, cool, and cloudy weather to end
next week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Coastal Flood Watch: 161.
MARINE...Storm Warning: 172
Gale Warning: 119 130-132 155 160 170 173 174 176 178 179 351-352
411-414.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BC
SOUTHCENTRAL ALASKA...CJ
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...EJD
MARINE/LONG TERM...MV