Small Craft Advisory 860, NWS Anchorage, AK

100 
FZAK52 PAFC 291146
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
346 AM AKDT Fri Oct 29 2021

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-300115-
346 AM AKDT Fri Oct 29 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi volcano, located 140 nm west of Adak, is currently 
active.

A 976 mb low 290 nm South of Cold Bay moves to 50 nm West of
Akhiok at 977 mb for Sat evening and then moves into Bristol Bay 
by Sun morning. Its front moves over the Alaska Peninsula through 
Sat afternoon. A 1002 mb North Kamchatka low Fri night moves to 
30 nm North of St Matthew Island at 994 mb by Sun morning.

$$

PKZ150-300115-
South of the AK Peninsula Sitkinak to Castle Cape-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...E wind 45 kt. Seas 11 ft building to 18 ft in the
afternoon. Rain.
.TONIGHT...SE wind 35 kt. Seas 20 ft. Rain.
.SAT...E wind 35 kt. Seas 24 ft. Rain.
.SAT NIGHT...N wind 30 kt. Seas 21 ft.
.SUN...N wind 30 kt. Seas 16 ft.
.MON...N wind 35 kt. Seas 12 ft.
.TUE...W wind 35 kt. Seas 13 ft.

$$

PKZ155-300115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
346 AM AKDT Fri Oct 29 2021

...STORM WARNING THROUGH TONIGHT...

.TODAY...NE wind 50 kt. Seas 20 ft. Rain.
.TONIGHT...N wind 50 kt. From the Shumagin Islands E, N wind 45 kt
diminishing to 35 kt after midnight. Seas 20 ft. Rain.
.SAT...N wind 45 kt. Seas 18 ft.
.SAT NIGHT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 30 kt. Seas 14 ft.
.MON...NW wind 25 kt. Seas 9 ft.
.TUE...SW wind 30 kt. Seas 12 ft.

$$

PKZ160-300115-
Bristol Bay-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 30 kt increasing to 40 kt in the afternoon. Seas
9 ft. Rain.
.TONIGHT...N wind 45 kt. Seas 13 ft. Snow and rain.
.SAT...N wind 35 kt. Seas 8 ft. snow and rain.
.SAT NIGHT...N wind 25 kt. Seas 8 ft.
.SUN...NW wind 25 kt. Seas 8 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...W wind 25 kt. Seas 6 ft.

$$

PKZ165-300115-
Port Heiden to Cape Sarichef-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 40 kt. Seas 13 ft.
.TONIGHT...N wind 45 kt. Seas 17 ft. Rain and snow.
.SAT...N wind 40 kt. Seas 17 ft. Rain.
.SAT NIGHT...NW wind 40 kt. Seas 17 ft.
.SUN...NW wind 30 kt. Seas 13 ft.
.MON...W wind 20 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 10 ft.

$$

PKZ170-300115-
Cape Sarichef to Nikolski Bering Side-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...N wind 40 kt. Seas 14 ft.
.TONIGHT...N wind 40 kt. Seas 15 ft.
.SAT...NW wind 35 kt. Seas 15 ft.
.SAT NIGHT...NW wind 30 kt. Seas 13 ft.
.SUN THROUGH MON...SW wind 20 kt. Seas 9 ft.
.TUE...S wind 35 kt. Seas 20 ft.

$$

PKZ171-300115-
Unalaska Bay-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...N wind 40 kt. Seas 13 ft.
.TONIGHT...N wind 40 kt. Seas 15 ft.
.SAT...NW wind 35 kt decreasing to 25 kt in the afternoon. Seas 14 
ft subsiding to 10 ft in the afternoon.
.SAT NIGHT...NW wind 25 kt. Seas 10 ft.
.SUN...W wind 10 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 2 ft.
.TUE...S wind 20 kt. Seas 3 ft.

$$

PKZ172-300115-
Cape Sarichef to Nikolski Pacific Side-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...N wind 45 kt. Seas 17 ft.
.TONIGHT...N wind 45 kt. Seas 17 ft.
.SAT...NW wind 40 kt. Seas 14 ft.
.SAT NIGHT...NW wind 35 kt. Seas 12 ft.
.SUN...NW wind 25 kt. Seas 8 ft.
.MON...W wind 25 kt. Seas 9 ft.
.TUE...S wind 35 kt. Seas 13 ft.

$$

PKZ173-300115-
Nikolski to Seguam Island Bering Side-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 12 ft.
.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 20 kt. Seas 8 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN...SW wind 25 kt. Seas 7 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.TUE...NW wind 45 kt. Seas 18 ft.

$$

PKZ174-300115-
Nikolski to Seguam Island Pacific Side-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 40 kt. Seas 17 ft.
.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. 
Seas 15 ft.
.SAT...NW wind 25 kt. Seas 11 ft.
.SAT NIGHT...NW wind 15 kt. Seas 7 ft.
.SUN THROUGH MON...SW wind 20 kt. Seas 10 ft.
.TUE...W wind 40 kt. Seas 14 ft.

$$

PKZ175-300115-
Seguam Island to Adak Bering Side-
346 AM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 11 ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SAT...W wind 15 kt. Seas 7 ft.
.SAT NIGHT...W wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 11 ft.
.TUE...NW wind 30 kt. Seas 14 ft.

$$

PKZ176-300115-
Seguam Island to Adak Pacific Side-
346 AM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...N wind 30 kt. Seas 14 ft.
.TONIGHT...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ177-300115-
Adak to Kiska-
346 AM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 11 ft.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.SAT...SW wind 15 kt. Seas 5 ft.
.SAT NIGHT...SW wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...W wind 30 kt. Seas 12 ft.
.TUE...W wind 35 kt. Seas 12 ft.

$$

PKZ178-300115-
Kiska to Attu-
346 AM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 5 ft.
.SAT NIGHT...W wind 25 kt. Seas 9 ft.
.SUN THROUGH TUE...W wind 30 kt. Seas 15 ft.

$$

PKZ179-300115-
Pribilof Islands Near Shore Waters-
346 AM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt. Seas 7 ft.
.SAT...NW wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 9 ft.
.TUE...NW wind 35 kt. Seas 15 ft.

$$

PKZ180-300115-
Kuskokwim Delta and Etolin Strait-
346 AM AKDT Fri Oct 29 2021

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...NE wind 30 kt. Seas 6 ft. Freezing spray.
.TONIGHT...N wind 40 kt. Seas 13 ft. Freezing spray.
.SAT...N wind 40 kt. Seas 13 ft. Freezing spray.
.SAT NIGHT...NW wind 40 kt. Seas 11 ft.
.SUN...NW wind 30 kt. Seas 9 ft.
.MON...S wind 20 kt. Seas 8 ft.
.TUE...NW wind 20 kt. Seas 9 ft.

$$

PKZ181-300115-
North and West of Nunivak Island-
346 AM AKDT Fri Oct 29 2021

.TODAY...N wind 20 kt. Seas 4 ft. Freezing spray.
.TONIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SAT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SAT NIGHT...NW wind 15 kt. Seas 3 ft.
.SUN...SW wind 25 kt. Seas 6 ft.
.MON...SE wind 30 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 9 ft.

$$

PKZ185-300115-
Saint Matthew Island Waters-
346 AM AKDT Fri Oct 29 2021

.TODAY...NW wind 15 kt. Seas 5 ft. Freezing spray.
.TONIGHT...NW wind 15 kt E of Saint Matthew Island... 
SW 20 kt W of Saint Matthew Island. Seas 6 ft. Freezing spray.
.SAT...SW wind 15 kt. Seas 6 ft. Freezing spray.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...NE wind 25 kt. Seas 8 ft.
.MON...SW wind 25 kt. Seas 13 ft.
.TUE...SW wind 30 kt. Seas 14 ft.

$$

851 
FZAK52 PAFC 292353
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
353 PM AKDT Fri Oct 29 2021

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-301315-
353 PM AKDT Fri Oct 29 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi volcano, located 140 nm west of Adak, is currently 
active.

A 976 mb low 290 nm south of Cold Bay moves to 50 nm west of
Akhiok at 977 mb for Sat evening and then moves into Bristol Bay 
by Sun morning. Its front moves over the Alaska Peninsula through 
Sat afternoon. A 1002 mb North Kamchatka low Fri night moves to 
30 nm north of St Matthew Island at 994 mb by Sun morning.

$$

PKZ150-301315-
South of the AK Peninsula Sitkinak to Castle Cape-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...E wind 45 kt. Seas 11 ft building to 18 ft in the
afternoon. Rain.
.TONIGHT...SE wind 35 kt. Seas 20 ft. Rain.
.SAT...E wind 35 kt. Seas 24 ft. Rain.
.SAT NIGHT...N wind 30 kt. Seas 21 ft.
.SUN...N wind 30 kt. Seas 16 ft.
.MON...N wind 35 kt. Seas 12 ft.
.TUE...W wind 35 kt. Seas 13 ft.

$$

PKZ155-301315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
353 PM AKDT Fri Oct 29 2021

...STORM WARNING THROUGH TONIGHT...

.TODAY...NE wind 50 kt. Seas 20 ft. Rain.
.TONIGHT...N wind 50 kt. From the Shumagin Islands E, N wind 45 kt
diminishing to 35 kt after midnight. Seas 20 ft. Rain.
.SAT...N wind 45 kt. Seas 18 ft.
.SAT NIGHT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 30 kt. Seas 14 ft.
.MON...NW wind 25 kt. Seas 9 ft.
.TUE...SW wind 30 kt. Seas 12 ft.

$$

PKZ160-301315-
Bristol Bay-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 30 kt increasing to 40 kt in the afternoon. Seas
9 ft. Rain.
.TONIGHT...N wind 45 kt. Seas 11 ft. Snow and rain.
.SAT...N wind 35 kt. Seas 8 ft. Rain, snow and freezing rain.
.SAT NIGHT...N wind 25 kt. Seas 8 ft.
.SUN...NW wind 25 kt. Seas 8 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...W wind 25 kt. Seas 6 ft.

$$

PKZ165-301315-
Port Heiden to Cape Sarichef-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 40 kt. Seas 13 ft.
.TONIGHT...N wind 45 kt. Seas 17 ft. Rain and snow.
.SAT...N wind 40 kt. Seas 17 ft. Rain.
.SAT NIGHT...NW wind 40 kt. Seas 17 ft.
.SUN...NW wind 30 kt. Seas 13 ft.
.MON...W wind 20 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 10 ft.

$$

PKZ170-301315-
Cape Sarichef to Nikolski Bering Side-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...N wind 40 kt. Seas 14 ft.
.TONIGHT...N wind 40 kt. Seas 15 ft.
.SAT...NW wind 35 kt. Seas 15 ft.
.SAT NIGHT...NW wind 30 kt. Seas 13 ft.
.SUN THROUGH MON...SW wind 20 kt. Seas 9 ft.
.TUE...S wind 35 kt. Seas 20 ft.

$$

PKZ171-301315-
Unalaska Bay-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 40 kt. Seas 13 ft.
.TONIGHT...N wind 40 kt. Seas 15 ft.
.SAT...NW wind 30 kt. Seas 14 ft.
.SAT NIGHT...NW wind 25 kt. Seas 10 ft.
.SUN...W wind 10 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 2 ft.
.TUE...S wind 20 kt. Seas 3 ft.

$$

PKZ172-301315-
Cape Sarichef to Nikolski Pacific Side-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...N wind 45 kt. Seas 17 ft.
.TONIGHT...N wind 45 kt. Seas 17 ft.
.SAT...NW wind 40 kt. Seas 14 ft.
.SAT NIGHT...NW wind 35 kt. Seas 12 ft.
.SUN...NW wind 25 kt. Seas 8 ft.
.MON...W wind 25 kt. Seas 9 ft.
.TUE...S wind 35 kt. Seas 13 ft.

$$

PKZ173-301315-
Nikolski to Seguam Island Bering Side-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 12 ft.
.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 20 kt. Seas 8 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN...SW wind 25 kt. Seas 7 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.TUE...NW wind 45 kt. Seas 18 ft.

$$

PKZ174-301315-
Nikolski to Seguam Island Pacific Side-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 40 kt. Seas 17 ft.
.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. 
Seas 15 ft.
.SAT...NW wind 25 kt. Seas 11 ft.
.SAT NIGHT...NW wind 15 kt. Seas 7 ft.
.SUN THROUGH MON...SW wind 20 kt. Seas 10 ft.
.TUE...W wind 40 kt. Seas 14 ft.

$$

PKZ175-301315-
Seguam Island to Adak Bering Side-
353 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 11 ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SAT...W wind 15 kt. Seas 7 ft.
.SAT NIGHT...W wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 11 ft.
.TUE...NW wind 30 kt. Seas 14 ft.

$$

PKZ176-301315-
Seguam Island to Adak Pacific Side-
353 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...N wind 30 kt. Seas 14 ft.
.TONIGHT...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 11 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ177-301315-
Adak to Kiska-
353 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 11 ft.
.TONIGHT...W wind 20 kt. Seas 7 ft.
.SAT...SW wind 15 kt. Seas 5 ft.
.SAT NIGHT...SW wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...W wind 30 kt. Seas 12 ft.
.TUE...W wind 35 kt. Seas 12 ft.

$$

PKZ178-301315-
Kiska to Attu-
353 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 20 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 5 ft.
.SAT NIGHT...W wind 25 kt. Seas 9 ft.
.SUN THROUGH TUE...W wind 30 kt. Seas 15 ft.

$$

PKZ179-301315-
Pribilof Islands Near Shore Waters-
353 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt. Seas 7 ft.
.SAT...NW wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 9 ft.
.TUE...NW wind 35 kt. Seas 15 ft.

$$

PKZ180-301315-
Kuskokwim Delta and Etolin Strait-
353 PM AKDT Fri Oct 29 2021

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...NE wind 30 kt. Seas 6 ft. Freezing spray.
.TONIGHT...N wind 40 kt. Seas 10 ft. Freezing spray.
.SAT...N wind 40 kt. Seas 11 ft. Freezing spray.
.SAT NIGHT...NW wind 40 kt. Seas 11 ft.
.SUN...NW wind 30 kt. Seas 9 ft.
.MON...S wind 20 kt. Seas 8 ft.
.TUE...NW wind 20 kt. Seas 9 ft.

$$

PKZ181-301315-
North and West of Nunivak Island-
353 PM AKDT Fri Oct 29 2021

.TODAY...N wind 20 kt. Seas 4 ft. Freezing spray.
.TONIGHT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SAT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SAT NIGHT...NW wind 15 kt. Seas 3 ft.
.SUN...SW wind 25 kt. Seas 6 ft.
.MON...SE wind 30 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 9 ft.

$$

PKZ185-301315-
Saint Matthew Island Waters-
353 PM AKDT Fri Oct 29 2021

.TODAY...NW wind 15 kt. Seas 5 ft. Freezing spray.
.TONIGHT...NW wind 15 kt E of Saint Matthew Island... 
SW 20 kt W of Saint Matthew Island. Seas 6 ft. Freezing spray.
.SAT...SW wind 15 kt. Seas 6 ft. Freezing spray.
.SAT NIGHT...SW wind 20 kt. Seas 7 ft.
.SUN...NE wind 25 kt. Seas 8 ft.
.MON...SW wind 25 kt. Seas 13 ft.
.TUE...SW wind 30 kt. Seas 14 ft.

$$

573 
FZAK52 PAFC 292359
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
359 PM AKDT Fri Oct 29 2021

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ199-301300-
359 PM AKDT Fri Oct 29 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi volcano, located 140 nm west of Adak, is currently 
active.

A 971 mb North Kamchatka low moves to 65 nm South of Mekoryuk at 
1001 mb by Sun afternoon. Its front pushes into Western Alaska 
through Sun afternoon. A 1004 mb Central Kamchatka low Sat 
afternoon moves to 270 nm North of Attu at 988 mb for Sun 
afternoon. Its front extends across the Bering through Sun 
afternoon.

$$

PKZ150-301300-
South of the AK Peninsula Sitkinak to Castle Cape-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...SE wind 35 kt. Seas 20 ft. Rain.
.SAT...E wind 35 kt. Seas 24 ft. Rain.
.SAT NIGHT...NE wind 30 kt becoming NW after midnight. Seas 21 ft.
.SUN...NW wind 35 kt. Seas 16 ft.
.SUN NIGHT...N wind 30 kt. Seas 13 ft.
.MON...N wind 35 kt. Seas 12 ft.
.TUE...W wind 35 kt. Seas 13 ft.
.WED...SE wind 25 kt. Seas 13 ft.

$$

PKZ155-301300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
359 PM AKDT Fri Oct 29 2021

...STORM WARNING TONIGHT...

.TONIGHT...N wind 50 kt. From the Shumagin Islands E, N wind 45 kt
diminishing to 35 kt after midnight. Seas 20 ft. Rain.
.SAT...N wind 45 kt. Seas 17 ft.
.SAT NIGHT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 35 kt. Seas 15 ft.
.SUN NIGHT...NW wind 20 kt. Seas 9 ft.
.MON...NW wind 25 kt. Seas 9 ft.
.TUE THROUGH WED...S wind 30 kt. Seas 13 ft.

$$

PKZ160-301300-
Bristol Bay-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...N wind 45 kt. Seas 11 ft. Freezing spray west of
Nunavachak Bay. Snow and rain east of Nunavachak Bay.
.SAT...N wind 35 kt. Seas 8 ft. Rain, snow and freezing rain.
.SAT NIGHT...N wind 25 kt. Seas 9 ft. Rain.
.SUN...NW wind 35 kt. Seas 12 ft.
.SUN NIGHT...NW wind 15 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...W wind 25 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 4 ft.

$$

PKZ165-301300-
Port Heiden to Cape Sarichef-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 45 kt. Seas 15 ft. Rain and snow.
.SAT...N wind 40 kt. Seas 18 ft. Rain with snow.
.SAT NIGHT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 35 kt. Seas 14 ft.
.SUN NIGHT...W wind 20 kt. Seas 7 ft.
.MON...W wind 25 kt. Seas 8 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...E wind 30 kt. Seas 14 ft.

$$

PKZ170-301300-
Cape Sarichef to Nikolski Bering Side-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...N wind 40 kt. Seas 14 ft.
.SAT...NW wind 35 kt. Seas 15 ft.
.SAT NIGHT...NW wind 30 kt becoming W 20 kt after midnight. Seas
14 ft.
.SUN...W wind 20 kt. Seas 9 ft.
.SUN NIGHT...SW wind 25 kt. Seas 7 ft.
.MON...SW wind 30 kt. Seas 10 ft.
.TUE...S wind 35 kt. Seas 20 ft.
.WED...NW wind 50 kt. Seas 22 ft.

$$

PKZ171-301300-
Unalaska Bay-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 40 kt. Seas 14 ft.
.SAT...NW wind 30 kt. Seas 14 ft.
.SAT NIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas
10 ft subsiding to 2 ft after midnight.
.SUN...W wind 20 kt. Seas 3 ft.
.SUN NIGHT...SW wind 15 kt. Seas 2 ft.
.MON THROUGH TUE...S wind 20 kt. Seas 3 ft.
.WED...W wind 25 kt. Seas 4 ft.

$$

PKZ172-301300-
Cape Sarichef to Nikolski Pacific Side-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 45 kt. Seas 17 ft.
.SAT...NW wind 40 kt. Seas 14 ft.
.SAT NIGHT...NW wind 35 kt diminishing to 25 kt after midnight.
Seas
12 ft.
.SUN AND SUN NIGHT...W wind 20 kt. Seas 8 ft.
.MON...SW wind 25 kt. Seas 9 ft.
.TUE...S wind 35 kt. Seas 13 ft.
.WED...W wind 45 kt. Seas 13 ft.

$$

PKZ173-301300-
Nikolski to Seguam Island Bering Side-
359 PM AKDT Fri Oct 29 2021

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

.TONIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 20 kt. Seas 9 ft.
.SAT NIGHT...W wind 15 kt. Seas 8 ft.
.SUN...SW wind 25 kt. Seas 6 ft.
.SUN NIGHT...SW wind 30 kt. Seas 8 ft.
.MON...SW wind 30 kt. Seas 10 ft.
.TUE THROUGH WED...W wind 45 kt. Seas 18 ft.

$$

PKZ174-301300-
Nikolski to Seguam Island Pacific Side-
359 PM AKDT Fri Oct 29 2021

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. Seas
15 ft.
.SAT...NW wind 25 kt. Seas 10 ft.
.SAT NIGHT...NW wind 15 kt. Seas 7 ft.
.SUN...SW wind 15 kt. Seas 6 ft.
.SUN NIGHT...SW wind 25 kt. Seas 10 ft.
.MON...SW wind 25 kt. Seas 11 ft.
.TUE...W wind 40 kt. Seas 14 ft.
.WED...W wind 45 kt. Seas 14 ft.

$$

PKZ175-301300-
Seguam Island to Adak Bering Side-
359 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 8 ft.
.SAT...W wind 15 kt. Seas 7 ft.
.SAT NIGHT...W wind 15 kt. Seas 7 ft.
.SUN...SW wind 25 kt. Seas 6 ft.
.SUN NIGHT...SW wind 30 kt. Seas 10 ft.
.MON...SW wind 30 kt. Seas 11 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 14 ft.

$$

PKZ176-301300-
Seguam Island to Adak Pacific Side-
359 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...NW wind 25 kt. Seas 11 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 5 ft.
.SUN...SW wind 20 kt. Seas 8 ft.
.SUN NIGHT...SW wind 30 kt. Seas 12 ft.
.MON THROUGH WED...W wind 30 kt. Seas 11 ft.

$$

PKZ177-301300-
Adak to Kiska-
359 PM AKDT Fri Oct 29 2021

.TONIGHT...W wind 20 kt. Seas 7 ft.
.SAT...SW wind 15 kt. Seas 6 ft.
.SAT NIGHT...SW wind 20 kt. Seas 6 ft.
.SUN AND SUN NIGHT...W wind 30 kt. Seas 12 ft.
.MON...W wind 30 kt. Seas 15 ft.
.TUE THROUGH WED...W wind 35 kt. Seas 12 ft.

$$

PKZ178-301300-
Kiska to Attu-
359 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 6 ft.
.SAT...S wind 20 kt. Seas 5 ft.
.SAT NIGHT...W wind 25 kt. Seas 8 ft.
.SUN...W wind 30 kt. Seas 12 ft.
.SUN NIGHT...W wind 35 kt. Seas 15 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 16 ft.
.WED...W wind 35 kt. Seas 11 ft.

$$

PKZ179-301300-
Pribilof Islands Near Shore Waters-
359 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 7 ft.
.SAT...NW wind 15 kt. Seas 6 ft.
.SAT NIGHT...Variable wind 10 kt becoming SW 20 kt after midnight.
Seas 6 ft.
.SUN...SW wind 25 kt. Seas 8 ft.
.SUN NIGHT...SW wind 30 kt. Seas 8 ft.
.MON...SW wind 30 kt. Seas 11 ft.
.TUE...NW wind 35 kt. Seas 15 ft.
.WED...NW wind 45 kt. Seas 15 ft.

$$

PKZ180-301300-
Kuskokwim Delta and Etolin Strait-
359 PM AKDT Fri Oct 29 2021

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

.TONIGHT...N wind 40 kt. Seas 10 ft. Freezing spray except heavy 
freezing spray near the coast. 
.SAT...N wind 40 kt. Seas 11 ft. Freezing spray except heavy 
freezing spray near the coast in the morning. 
.SAT NIGHT...N wind 40 kt becoming NW 30 kt after midnight. Seas
11 ft. Freezing spray.
.SUN...NW wind 30 kt. Seas 9 ft.
.SUN NIGHT...SW wind 25 kt. Seas 7 ft.
.MON...S wind 30 kt. Seas 8 ft.
.TUE...NW wind 20 kt. Seas 9 ft.
.WED...NE wind 30 kt. Seas 10 ft.

$$

PKZ181-301300-
North and West of Nunivak Island-
359 PM AKDT Fri Oct 29 2021

.TONIGHT...N wind 20 kt. Seas 5 ft. Freezing spray.
.SAT...N wind 20 kt. Seas 4 ft. Freezing spray.
.SAT NIGHT...N wind 15 kt in the evening becoming variable 10 kt.
Seas 3 ft.
.SUN...W wind 20 kt. Seas 5 ft.
.SUN NIGHT...S wind 30 kt. Seas 6 ft.
.MON...S wind 30 kt. Seas 11 ft.
.TUE...W wind 15 kt. Seas 9 ft.
.WED...NE wind 20 kt. Seas 7 ft.

$$

PKZ185-301300-
Saint Matthew Island Waters-
359 PM AKDT Fri Oct 29 2021

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...NW wind 15 kt E of Saint Matthew Island... SW 20 kt W
of Saint Matthew Island. Seas 7 ft. Freezing spray. Snow showers.
.SAT...SW wind 15 kt. Seas 7 ft. Freezing spray.
.SAT NIGHT...SE wind 15 kt E of Saint Matthew Island...SW 25 kt W
of Saint Matthew Island. Seas 8 ft.
.SUN...NW wind 20 kt. Seas 8 ft.
.SUN NIGHT...E wind 30 kt. Seas 7 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 14 ft.
.WED...NW wind 30 kt. Seas 11 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
537 AM AKDT Thu Oct 28 2021

.ANALYSIS AND UPPER LEVELS...

Latest infrared satellite imagery reveals an upper low persisting
over the Bering this morning and centered just east of the
Pribilofs. An occluded front extends eastward from the low into
interior Alaska and meets a triple point low currently over the
Kenai Peninsula. Light snow is falling across the Kuskokwim Delta
in the vicinity or just southeast of Bethel along the front. Over
the triple point low cloud cover is expanding in coverage with
additional light snow occurring from Homer to Iliamna. A cold air
mass lingers over much of Southwest with 850 mb temperatures
ranging from -8 to -10 degrees Celsius while Southcentral 850 mb
temperatures are closer to -6 degrees Celsius currently. A warm
front is lifting northward toward Prince William Sound with
isolated to scattered showers. Behind the warm front is a cold
front which extends southward into the southern gulf. The next big
weather maker is deepening in strength to the south of Amchitka
Island. It is producing overcast skies and lowered ceilings across
the Aleutians this morning. As this low continues to strengthen
and shift east it will likely bring a wintry mix to parts of
Bristol Bay and the Lower Kuskokwim Delta Friday into the weekend,
as well as heavy rains and mountain snow to the Kenai Peninsula,
and high winds across the Turnagain Arm, including Portage Pass
and the town of Whittier.

&&

.MODEL DISCUSSION...

The models are handling synoptic features well this morning over
the Bering and over the Gulf of Alaska. Good model agreement
continues and depicts a low over the Bering and a low over the
Gulf of Alaska gradually merging over interior Alaska through 24
hours. Beyond 24 hours models continue to show good agreement with
a third low undergoing significant amplification south of the
Aleutians on Friday and presenting an atmospheric river into the
Kenai Peninsula for a 12 to 24 hour period Friday night into
Saturday. Models diverge beyond 48 hours but do suggest southerly
flow over the Kenai Peninsula will become southeast and then
easterly as an amplified low and its trough axis pivot
counterclockwise Saturday morning. The evolution of this low over
the next couple of days will ultimately determine just how much
rain areas like Seward receive into the weekend.

&&

.AVIATION...
PANC...Light winds will persist with VFR conditions early this
morning lowering to MVFR as light snow moves across the terminal.
The light snow is expected to linger through around noon Thursday
before tapering off. VFR ceilings and light southerly winds are
expected through Thursday afternoon and evening; however, ceilings
should remain at or below 5,000 ft.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 2: Today
through Sunday Morning)...

A weak shortwave and associated surface low near Homer this
morning will lift northeast today. As it does, expect light snow
from Cook Inlet and the Anchorage Bowl east toward Prince William
Sound. The snow will be light, with around an inch expected for
places like Anchorage and Kenai. A couple of inches are possible
for higher elevations such as Turnagain and Thompson Passes and
across the Portage Valley. As the shortwave lifts to the interior
Friday, weather across Southcentral will turn relatively quiet,
with the exception of some lingering snow showers across the
mountains.

The pattern then turns more amplified and more active beginning
late Friday, continuing through the weekend. A deepening upper-
level trough will dive well south of the AKPen Friday morning as
the upper-level jet becomes meridional. Ahead of the trough, deep
southerly flow will transport tropical moisture northward into
Southcentral in the form of an atmospheric river. A colder airmass
in place ahead of the frontal system lifting north will allow for
some snow initially, especially away from the coast and at
elevation. However, as the warmer air advects from the south and
the airmass across coastal Southcentral moderates, snow levels
will quickly climb, reaching over 3,000 feet by Saturday morning.

The aforementioned frontal system will reach Kodiak Island first,
with rain and gusty southerly winds developing by Friday morning.
The atmospheric river will then migrate to the Kenai Peninsula by
Fri afternoon, where copious moisture will wring out over the
mountains. Seward could see 2 to 4 inches of rain by late Saturday
with QPF amounts nearly doubled in the surrounding mountains.
While the forecasted winds aloft have shifted from due south to
southeasterly, allowing for slightly less rainfall amounts in
Seward, the forecasted 2 to 4 inches will fall in a short enough
period of time to bring the potential for localized flooding.
Similar rainfall totals are possible in Kodiak City through Sunday
as the AR realigns at Kodiak Island by Sunday.

Farther north, the primary weather threat will be high winds, both
at elevation and trough favored gaps. As the leading front moves
toward the Southcentral coast, the synoptic winds will turn east-
southeasterly, aligning with gaps such as Turnagain Arm. Given the
strength of this system, gusts above hurricane force are likely
to develop, especially along Turnagain Arm, Portage Valley, and
the higher elevations of the Anchorage Hillside. A High Wind
Watches remains in effect for these locations from Friday evening
through Sunday morning. Other threats include the potential for
significant amounts of snow across the western Susitna Valley,
some snowfall and gusty winds across the Copper River Basin, and
temperatures warming well into the 40s by Saturday. Stay tuned for
additional products and updated forecasts.

&&

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

A weak low pressure system will move across the area today with a
few lingering areas of very light snow and snow showers mainly
over the Lower Kuskokwim Valley with little or no snow
accumulations expected. This evening through early Friday the area
will see a brief break in the weather with mostly clear skies and
cold temperatures with lows Friday morning in the teens and low
20s across the area. However, by Friday afternoon a strong low
pressure system develops south of the AKPEN. This will draw
moisture rapidly across the area with a frontal system developing
across Bristol Bay. Strong upper level forcing is expected as a
favorable area of the upper level jet stream moves across the area
creating lift. This will allow snow to develop across the area
Friday afternoon through Saturday. Warm air will develop from
downsloping winds off the western Alaskan Range causing the snow
to change to a mix of freezing rain and rain Friday night into
Saturday morning across Bristol Bay. It will change over to rain
sometime Friday night around King Salmon and Iliamna while
Dillingham and north towards New Stuyahok and Koliganek the snow
will change to freezing rain and/or rain by Saturday morning
through around midday Saturday. Currently 4 to 8 inches of snow is
likely from Dillingham north to Koliganek. While King Salmon and
Iliamna will see 1 to 2 inches of snow before changing to rain.
Areas that get freezing rain should be short lived and relatively
light in nature with minimal impacts. Expect 6 to 10 inches of
snow across the Lower Kuskokwim Valley beginning Friday night and
possibly changing over to rain and/or freezing rain by Saturday
afternoon or evening. Any freezing rain in this area should be
short lived with only minor accumulations with minimal impacts.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 to 3...Tonight
through Fri afternoon)...

A gale force low is currently moving just south of the western
Aleutians. This low will move across the Aleutian chain today with
gale force winds from the Island and southward with areas of
moderate rain. The rest of the Bering will be relatively quiet
today with cool northerly flow with a few rain and snow showers
with small craft winds or less. By Friday morning storm force
winds will develop south of the AKPEN as the low deepens south of
the AKPEN on Friday. This will bring rain to the southern AKPEN
and rain and snow to northern parts of the AKPEN with a couple of
inches of snow accumulations Friday and Saturday. Storm force
winds will continue through Friday night south of the AKPEN.
Otherwise the central and western Bering and Aleutians will see
relatively quiet weather with light winds Friday afternoon though
Saturday.

&&

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

Bering/Aleutians...
Strong gales and seas up to 15 ft over eastern Bering will
continue until Sat night. The next emerging low over the southern
Bering Sun afternoon could potentially elevate seas and winds to
gales near Pribilof Islands Sun night into early Mon morning.
Elsewhere, moderate seas and small crafts will continue
sporadically across the forecast area. For this reason, forecast
confidence is above average.

Gulf of Alaska...
A nearly stationary complex North Pacific low and its associated
front are responsible for persistent gales and long period swells
of 20 to 25 ft across the Gulf through at least early Sun morning.
As seas and winds diminish Sun morning, the potential for gales to
return is favorable especially around the Barren Islands and east
of Kodiak Island in response to the next North Pacific low
trekking toward the Gulf Sun afternoon. The latter system will
again bring another strong episode of long period swells up to 22
ft on Monday especially over the central Gulf. For other parts of
the Gulf during most of the forecast period, small craft
conditions will continue into early next week. Overall, forecast
confidence remains above average.

&&

.LONG TERM FORECAST (Days 4 through 7: Sunday through Wednesday)...

GFS and ECM differ quite a bit on the placement of the expected
lows transiting through the Bering and Gulf of Alaska. However,
solutions agreed to highlight strong winds and potentially heavy
rain across the Gulf and Prince William Sound, and over the
Aleutian Chain and Southwest Coast. Clearly, a firm ridge over the
State will maintain a quiet forecast for mostly inland portions of
Southcentral and Southwest. A frontal system over the eastern Gulf
will bring strong winds and rain across Prince William Sound and
eastern Kenai Peninsula starting Mon afternoon until late Mon
night. Meanwhile, strong winds and rain from a North Pacific low
will enter the central Aleutians beginning Mon afternoon. A
developing front associated with the latter system will then shift
through the eastern Bering into the Southwest Coast by early Tue
morning, leading to increased rain and stronger winds along the
gaps and passes. Both systems over the Bering and Gulf will bring
a lot of tropical moisture and warm temperatures days ahead.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Watch 101 125.
MARINE...Storm Warning 155
	     Gale Warning 120 130-132 136-138 150 160 165 170-174 176
					  177 351 352.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BL
SOUTHCENTRAL ALASKA...TM
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...RC
MARINE/LONG TERM...KO