Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 741, NWS Anchorage, AK

September 20, 2021

NWS Anchorage, AK issued this small craft advisory at Sep 20, 2021, 3:36 AM AKDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Sep 20, 2021, 3:36 AM AKDT (11:36 UTC)
Expired: Sep 21, 2021, 3:40 AM AKDT
In force: 24 hr
Issued by: NWS Anchorage, AK

The text

As transmitted.

539 
FZAK52 PAFC 201136
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
336 AM AKDT Mon Sep 20 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.

PKZ199-210015-
336 AM AKDT Mon Sep 20 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano 140 nm west of Adak is currently active.

High pressure exists across the Eastern Bering through Tue
afternoon. A front pushes into the Western Bering on Mon evening.
A 980 mb low moves to 350 nm south of Adak on Tue afternoon. Its
front moves across the Aleutian Islands through Wed afternoon. 

$$

PKZ150-210015-
South of the AK Peninsula Sitkinak to Castle Cape-
336 AM AKDT Mon Sep 20 2021

...GALE WARNING TONIGHT...

.TODAY...NW wind 30 kt. Seas 11 ft.
.TONIGHT...NW wind 40 kt. Seas 11 ft.
.TUE...NW wind 30 kt. Seas 9 ft.
.TUE NIGHT...NW wind 20 kt. Seas 5 ft.
.WED...NE wind 35 kt. Seas 13 ft.
.THU...NW wind 35 kt. Seas 15 ft.
.FRI...W wind 35 kt. Seas 14 ft.

$$

PKZ155-210015-
South of the AK Peninsula Castle Cape to Cape Sarichef-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 30 kt. Seas 11 ft.
.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. Seas
8 ft.
.TUE...E wind 20 kt in the afternoon. Variable wind 10 kt in the
morning. From the Shumagin Islands E, variable 10 kt. Seas 4 ft.
.TUE NIGHT...E wind 30 kt. Seas 5 ft.
.WED...NE wind 40 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 14 ft.
.FRI...SW wind 30 kt. Seas 10 ft.

$$

PKZ160-210015-
Bristol Bay-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 6 ft.
.TONIGHT...N wind 25 kt. Seas 5 ft.
.TUE...N wind 15 kt. Seas 4 ft.
.TUE NIGHT...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 30 kt. Seas 5 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 10 ft.

$$

PKZ165-210015-
Port Heiden to Cape Sarichef-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 8 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.TUE...NE wind 20 kt. Seas 4 ft.
.TUE NIGHT...E wind 25 kt. Seas 5 ft.
.WED...NE wind 30 kt. Seas 10 ft.
.THU...N wind 30 kt. Seas 12 ft.
.FRI...N wind 40 kt. Seas 10 ft.

$$

PKZ170-210015-
Cape Sarichef to Nikolski Bering Side-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...NW wind 20 kt. Seas 6 ft.
.TONIGHT...NE wind 15 kt. Seas 5 ft.
.TUE...E wind 25 kt. Seas 6 ft.
.TUE NIGHT...E wind 30 kt. Seas 8 ft.
.WED...NE wind 30 kt. Seas 13 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...E wind 45 kt. Seas 15 ft.

$$

PKZ171-210015-
Unalaska Bay-
336 AM AKDT Mon Sep 20 2021

.TODAY...NW wind 20 kt. Seas 6 ft.
.TONIGHT...N wind 10 kt in the evening becoming variable less than
10 kt. Seas 3 ft.
.TUE...SE wind 10 kt increasing to 20 kt in the afternoon. Seas
3 ft.
.TUE NIGHT...E wind 25 kt. Seas 4 ft.
.WED...N wind 30 kt. Seas 10 ft.
.THU...NW wind 30 kt. Seas 10 ft.
.FRI...SE wind 40 kt. Seas 7 ft.

$$

PKZ172-210015-
Cape Sarichef to Nikolski Pacific Side-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TODAY AND TUESDAY...

.TODAY...NW wind 25 kt. Seas 8 ft.
.TONIGHT...NW wind 15 kt in the evening becoming variable 10 kt.
Seas 5 ft.
.TUE...E wind 20 kt increasing to 30 kt in the afternoon. 
Seas 5 ft.
.TUE NIGHT...E wind 35 kt. Seas 11 ft.
.WED...N wind 40 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 12 ft.
.FRI...S wind 40 kt. Seas 17 ft.

$$

PKZ173-210015-
Nikolski to Seguam Island Bering Side-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...SE wind 20 kt. Seas 4 ft.
.TUE...E wind 30 kt. Seas 7 ft.
.TUE NIGHT...NE wind 35 kt. Seas 11 ft.
.WED...N wind 30 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...E wind 45 kt. Seas 17 ft.

$$

PKZ174-210015-
Nikolski to Seguam Island Pacific Side-
336 AM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY...

.TODAY...NW wind 15 kt. Seas 7 ft.
.TONIGHT...Variable wind 10 kt becoming SE 20 kt after midnight.
Seas 5 ft.
.TUE...SE wind 30 kt becoming E 40 kt in the afternoon. Seas 9 ft.
.TUE NIGHT...E wind 40 kt. Seas 16 ft.
.WED...N wind 40 kt. Seas 17 ft.
.THU...NW wind 30 kt. Seas 12 ft.
.FRI...S wind 45 kt. Seas 21 ft.

$$

PKZ175-210015-
Seguam Island to Adak Bering Side-
336 AM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY...

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...SE wind 20 kt. Seas 4 ft.
.TUE...E wind 35 kt. Seas 8 ft.
.TUE NIGHT...NE wind 35 kt. Seas 11 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.THU...SE wind 20 kt. Seas 8 ft.
.FRI...NE wind 45 kt. Seas 13 ft.

$$

PKZ176-210015-
Seguam Island to Adak Pacific Side-
336 AM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY...

.TODAY...Variable wind 10 kt becoming SE 15 kt in the afternoon.
Seas 5 ft.
.TONIGHT...SE wind 25 kt. Seas 5 ft.
.TUE...E wind 40 kt. Seas 12 ft.
.TUE NIGHT...NE wind 40 kt. Seas 17 ft.
.WED...N wind 35 kt. Seas 17 ft.
.THU...SW wind 20 kt. Seas 9 ft.
.FRI...W wind 45 kt. Seas 16 ft.

$$

PKZ177-210015-
Adak to Kiska-
336 AM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY...

.TODAY...SE wind 15 kt. Seas 5 ft.
.TONIGHT...E wind 25 kt. Seas 6 ft.
.TUE...E wind 35 kt. Seas 11 ft.
.TUE NIGHT...NE wind 35 kt. Seas 12 ft.
.WED...NE wind 25 kt. Seas 11 ft.
.THU...S wind 20 kt. Seas 7 ft.
.FRI...N wind 35 kt. Seas 10 ft.

$$

PKZ178-210015-
Kiska to Attu-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 30 kt. Seas 10 ft.
.TONIGHT...SE wind 25 kt. Seas 10 ft.
.TUE...E wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 20 kt. Seas 9 ft.
.WED...SE wind 15 kt. Seas 9 ft.
.THU...S wind 20 kt. Seas 7 ft.
.FRI...NW wind 25 kt. Seas 12 ft.

$$

PKZ179-210015-
Pribilof Islands Near Shore Waters-
336 AM AKDT Mon Sep 20 2021

.TODAY...NE wind 15 kt. Seas 4 ft.
.TONIGHT...SE wind 15 kt. Seas 4 ft.
.TUE...E wind 20 kt. Seas 4 ft.
.TUE NIGHT...E wind 25 kt. Seas 5 ft.
.WED...N wind 30 kt. Seas 10 ft.
.THU...N wind 25 kt. Seas 10 ft.
.FRI...E wind 30 kt. Seas 8 ft.

$$

PKZ180-210015-
Kuskokwim Delta and Etolin Strait-
336 AM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt. Seas 6 ft.
.TUE...NE wind 15 kt diminishing to 10 kt in the afternoon. 
Seas 3 ft.
.TUE NIGHT...E wind 15 kt. Seas 2 ft.
.WED...NE wind 30 kt. Seas 8 ft.
.THU...N wind 30 kt. Seas 9 ft.
.FRI...N wind 25 kt. Seas 7 ft.

$$

PKZ181-210015-
North and West of Nunivak Island-
336 AM AKDT Mon Sep 20 2021

.TODAY...N wind 15 kt. Seas 5 ft.
.TONIGHT...Variable wind 10 kt. Seas 3 ft.
.TUE...Variable wind 10 kt becoming S 15 kt in the afternoon. 
Seas 2 ft.
.TUE NIGHT...SW wind 15 kt. Seas 4 ft.
.WED THROUGH THU...N wind 25 kt. Seas 8 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

PKZ185-210015-
Saint Matthew Island Waters-
336 AM AKDT Mon Sep 20 2021

.TODAY...Variable wind 10 kt E of Saint Matthew Island...
SE 15 kt W of Saint Matthew Island. Seas 4 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.TUE...S wind 15 kt. Seas 3 ft.
.TUE NIGHT...N wind 20 kt. Seas 6 ft.
.WED...NE wind 25 kt. Seas 7 ft.
.THU...E wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 6 ft.

$$

2 follow-up statements

007 
FZAK52 PAFC 202347
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
347 PM AKDT Mon Sep 20 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.

PKZ199-211245-
347 PM AKDT Mon Sep 20 2021

.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano 140 nm west of Adak is currently active.

High pressure holds over the eastern Bering through Tue 
afternoon. A 988 mb North Pacific low 465 nm south of Shemya 
strengthens to 978 mb 300 nm south of Adak Tue afternoon. This low 
elongates as it moves to 215 nm south of Sand Point at 985 mb Wed 
afternoon. 

$$

PKZ150-211245-
South of the AK Peninsula Sitkinak to Castle Cape-
347 PM AKDT Mon Sep 20 2021

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...NW wind 30 kt in the evening increasing to 40 kt. Seas 
12 ft.
.TUE...NW wind 35 kt. Seas 10 ft.
.TUE NIGHT...W wind 25 kt becoming S 15 kt after midnight. Seas 9 ft
subsiding to 7 ft after midnight.
.WED...E wind 35 kt. Seas 10 ft.
.WED NIGHT...NE wind 40 kt. Seas 14 ft.
.THU...NW wind 40 kt. Seas 16 ft.
.FRI...W wind 35 kt. Seas 14 ft.
.SAT...E wind 35 kt. Seas 17 ft.

$$

PKZ155-211245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.TUE...N wind 15 kt except variable 10 kt from the Shumagin Islands 
E. Seas 5 ft.
.TUE NIGHT...E wind 20 kt increasing to 30 kt after midnight. From
the Shumagin Islands E, variable wind 10 kt becoming E 20 kt after
midnight. Seas 5 ft.
.WED...NE wind 35 kt. Seas 11 ft.
.WED NIGHT...N wind 40 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 14 ft.
.FRI...SW wind 30 kt. Seas 10 ft.
.SAT...N wind 35 kt. Seas 17 ft.

$$

PKZ160-211245-
Bristol Bay-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt. Seas 5 ft.
.TUE NIGHT...NW wind 10 kt becoming E after midnight. Seas 3 ft.
.WED...E wind 20 kt. Seas 5 ft.
.WED NIGHT...NE wind 25 kt. Seas 7 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 11 ft.
.SAT...NE wind 30 kt. Seas 9 ft.

$$

PKZ165-211245-
Port Heiden to Cape Sarichef-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 9 ft.
.TUE...E wind 20 kt except N 15 kt from Port Moller E. Seas 6 ft.
.TUE NIGHT...NE wind 20 kt. Seas 6 ft.
.WED...NE wind 25 kt. Seas 9 ft.
.WED NIGHT...N wind 30 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...N wind 40 kt. Seas 15 ft.
.SAT...N wind 40 kt. Seas 15 ft.

$$

PKZ170-211245-
Cape Sarichef to Nikolski Bering Side-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...NE wind 15 kt. Seas 6 ft.
.TUE...E wind 25 kt. Seas 8 ft.
.TUE NIGHT...E wind 30 kt. Seas 9 ft.
.WED...NE wind 30 kt. Seas 10 ft.
.WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 30 kt. Seas 14 ft.
.FRI...E wind 45 kt. Seas 15 ft.
.SAT...N wind 40 kt. Seas 16 ft.

$$

PKZ171-211245-
Unalaska Bay-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...N wind 10 kt. Seas 3 ft.
.TUE...E wind 10 kt becoming SE 20 kt in the afternoon. Seas 3 ft.
.TUE NIGHT...E wind 25 kt. Seas 4 ft. Rain.
.WED...NE wind 30 kt. Seas 9 ft.
.WED NIGHT...N wind 30 kt. Seas 13 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...SE wind 40 kt. Seas 7 ft.
.SAT...N wind 35 kt. Seas 14 ft.

$$

PKZ172-211245-
Cape Sarichef to Nikolski Pacific Side-
347 PM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 6 ft.
.TUE...E wind 25 kt. Seas 8 ft.
.TUE NIGHT...E wind 35 kt. Seas 13 ft. Rain.
.WED...NE wind 40 kt. Seas 14 ft.
.WED NIGHT...N wind 35 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 12 ft.
.FRI...S wind 40 kt. Seas 17 ft.
.SAT...NW wind 40 kt. Seas 20 ft.

$$

PKZ173-211245-
Nikolski to Seguam Island Bering Side-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas 6 ft.
.TUE...E wind 30 kt. Seas 11 ft.
.TUE NIGHT...E wind 30 kt. Seas 13 ft.
.WED...NE wind 35 kt. Seas 15 ft.
.WED NIGHT...N wind 30 kt. Seas 13 ft.
.THU...W wind 25 kt. Seas 10 ft.
.FRI...E wind 45 kt. Seas 17 ft.
.SAT...NW wind 40 kt. Seas 17 ft.

$$

PKZ174-211245-
Nikolski to Seguam Island Pacific Side-
347 PM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming SE 20 kt after midnight.
Seas 5 ft.
.TUE...E wind 25 kt increasing to 35 kt in the afternoon. Seas 9 ft
building to 13 ft in the afternoon.
.TUE NIGHT...E wind 40 kt. Seas 15 ft. Rain.
.WED...NE wind 40 kt. Seas 17 ft.
.WED NIGHT...N wind 30 kt. Seas 15 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...S wind 45 kt. Seas 21 ft.
.SAT...NW wind 40 kt. Seas 21 ft.

$$

PKZ175-211245-
Seguam Island to Adak Bering Side-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 15 kt increasing to 25 kt after midnight. Seas
5 ft building to 8 ft after midnight.
.TUE...E wind 30 kt. Seas 11 ft.
.TUE NIGHT...NE wind 30 kt. Seas 12 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.WED NIGHT...N wind 25 kt. Seas 10 ft.
.THU...S wind 20 kt. Seas 8 ft.
.FRI...NE wind 45 kt. Seas 13 ft.
.SAT...NW wind 30 kt. Seas 13 ft.

$$

PKZ176-211245-
Seguam Island to Adak Pacific Side-
347 PM AKDT Mon Sep 20 2021

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 9 ft.
.TUE...E wind 30 kt increasing to 40 kt in the afternoon. Seas
14 ft.
.TUE NIGHT...NE wind 40 kt. Seas 17 ft. Rain.
.WED...NE wind 35 kt. Seas 17 ft.
.WED NIGHT...N wind 25 kt. Seas 12 ft.
.THU...SW wind 20 kt. Seas 9 ft.
.FRI...W wind 45 kt. Seas 16 ft.
.SAT...NW wind 30 kt. Seas 15 ft.

$$

PKZ177-211245-
Adak to Kiska-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 10 ft.
.TUE...E wind 30 kt. Seas 12 ft.
.TUE NIGHT...NE wind 30 kt. Seas 13 ft.
.WED...NE wind 25 kt. Seas 11 ft.
.WED NIGHT...NE wind 15 kt. Seas 9 ft.
.THU...S wind 20 kt. Seas 6 ft.
.FRI...N wind 35 kt. Seas 10 ft.
.SAT...NW wind 20 kt. Seas 11 ft.

$$

PKZ178-211245-
Kiska to Attu-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 10 ft.
.TUE...E wind 20 kt. Seas 9 ft.
.TUE NIGHT...E wind 15 kt. Seas 9 ft.
.WED...E wind 15 kt. Seas 9 ft.
.WED NIGHT...SE wind 15 kt. Seas 7 ft.
.THU...S wind 20 kt. Seas 6 ft.
.FRI...NW wind 25 kt. Seas 12 ft.
.SAT...NW wind 20 kt. Seas 12 ft.

$$

PKZ179-211245-
Pribilof Islands Near Shore Waters-
347 PM AKDT Mon Sep 20 2021

.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.TUE...SE wind 15 kt. Seas 5 ft.
.TUE NIGHT...E wind 20 kt. Seas 6 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 10 ft.
.THU...N wind 25 kt. Seas 9 ft.
.FRI...E wind 30 kt. Seas 11 ft.
.SAT...N wind 30 kt. Seas 12 ft.

$$

PKZ180-211245-
Kuskokwim Delta and Etolin Strait-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 7 ft.
.TUE...N wind 20 kt diminishing to 10 kt in the afternoon. Seas
4 ft.
.TUE NIGHT...NW wind 20 kt. Seas 3 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 8 ft.
.THU...N wind 35 kt. Seas 9 ft.
.FRI...N wind 25 kt. Seas 7 ft.
.SAT...N wind 35 kt. Seas 10 ft.

$$

PKZ181-211245-
North and West of Nunivak Island-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...N wind 15 kt. Seas 3 ft.
.TUE...SW wind 25 kt. Seas 6 ft.
.TUE NIGHT...W wind 30 kt. Seas 8 ft.
.WED...N wind 30 kt. Seas 9 ft.
.WED NIGHT...N wind 25 kt. Seas 8 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI THROUGH SAT...N wind 20 kt. Seas 7 ft.

$$

PKZ185-211245-
Saint Matthew Island Waters-
347 PM AKDT Mon Sep 20 2021

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 4 ft.
.TUE...E of Saint Matthew Island, SW wind 25 kt. W of Saint
Matthew Island, SW wind 15 kt becoming N in the afternoon. Seas 5 ft. 
.TUE NIGHT...NE wind 25 kt. Seas 8 ft.
.WED AND WED NIGHT...N wind 25 kt. Seas 8 ft.
.THU...W wind 20 kt. Seas 5 ft.
.FRI...E wind 15 kt. Seas 6 ft.
.SAT...N wind 20 kt. Seas 6 ft.

$$

463 
FZAK52 PAFC 211140
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
340 AM AKDT Tue Sep 21 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.

PKZ199-220100-
340 AM AKDT Tue Sep 21 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano 140 nm west of Adak is currently active.

High pressure holds over the Eastern Bering through Tue 
afternoon. A 979 mb low 350 nm south of Adak on Tue afternoon
weakens to 985 mb and moves 400 nm southwest of Unalaska. This 
low elongates and a new low forms 200 nm south of Akhiok at 979 mb by
Wed afternoon. Its front sweeps along the Aleutians and extends 
into the Gulf through Wed afternoon.

$$

PKZ150-220100-
South of the AK Peninsula Sitkinak to Castle Cape-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. Seas 10 ft.
.TONIGHT...W wind 25 kt becoming S 15 kt after midnight. 
Seas 5 ft.
.WED...E wind 30 kt. Seas 8 ft. Rain.
.WED NIGHT...NE wind 35 kt. Seas 13 ft.
.THU...NW wind 35 kt. Seas 16 ft.
.FRI...W wind 35 kt. Seas 13 ft.
.SAT...E wind 25 kt. Seas 7 ft.

$$

PKZ155-220100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING WEDNESDAY...

.TODAY...N wind 15 kt except variable 10 kt from the Shumagin
Islands E. Seas 5 ft.
.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. From
the Shumagin Islands E, variable wind 10 kt becoming E 20 kt after 
midnight. Seas 5 ft.
.WED...E wind 35 kt. Seas 7 ft building to 11 ft in the afternoon.
Rain.
.WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 30 kt. Seas 14 ft.
.FRI...S wind 25 kt. Seas 8 ft.
.SAT...N wind 40 kt. Seas 9 ft.

$$

PKZ160-220100-
Bristol Bay-
340 AM AKDT Tue Sep 21 2021

.TODAY...N wind 20 kt. Seas 4 ft.
.TONIGHT...NW wind 10 kt becoming E after midnight. Seas 2 ft.
.WED...E wind 15 kt becoming NE in the afternoon. Seas 4 ft.
.WED NIGHT...NE wind 25 kt. Seas 5 ft.
.THU...NW wind 30 kt. Seas 9 ft.
.FRI...W wind 30 kt. Seas 8 ft.
.SAT...NE wind 30 kt. Seas 4 ft.

$$

PKZ165-220100-
Port Heiden to Cape Sarichef-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...E wind 20 kt except N 15 kt from Port Moller E. 
Seas 5 ft.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 6 ft.
.WED NIGHT...N wind 30 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...S wind 25 kt. Seas 8 ft.
.SAT...N wind 35 kt. Seas 7 ft.

$$

PKZ170-220100-
Cape Sarichef to Nikolski Bering Side-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 25 kt. Seas 6 ft.
.TONIGHT...E wind 30 kt. Seas 8 ft.
.WED...NE wind 30 kt. Seas 10 ft.
.WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 25 kt. Seas 14 ft.
.FRI...E wind 25 kt. Seas 6 ft.
.SAT...NW wind 35 kt. Seas 8 ft.

$$

PKZ171-220100-
Unalaska Bay-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY TONIGHT AND WEDNESDAY...

.TODAY...E wind 10 kt becoming SE 20 kt in the afternoon. 
Seas 3 ft.
.TONIGHT...E wind 25 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 6 ft building to 9 ft in the afternoon.
.WED NIGHT...N wind 30 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 10 ft.
.FRI...SE wind 20 kt. Seas 2 ft.
.SAT...NW wind 30 kt. Seas 5 ft.

$$

PKZ172-220100-
Cape Sarichef to Nikolski Pacific Side-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...E wind 25 kt. Seas 5 ft.
.TONIGHT...E wind 35 kt. Seas 11 ft.
.WED...NE wind 40 kt. Seas 14 ft.
.WED NIGHT...N wind 30 kt. Seas 14 ft.
.THU...NW wind 30 kt. Seas 12 ft.
.FRI...SE wind 30 kt. Seas 7 ft.
.SAT...NW wind 40 kt. Seas 10 ft.

$$

PKZ173-220100-
Nikolski to Seguam Island Bering Side-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING WEDNESDAY...

.TODAY...E wind 30 kt. Seas 7 ft.
.TONIGHT...E wind 30 kt. Seas 11 ft.
.WED...NE wind 35 kt. Seas 12 ft.
.WED NIGHT...N wind 25 kt. Seas 11 ft.
.THU...W wind 15 kt. Seas 10 ft.
.FRI...NE wind 25 kt. Seas 6 ft.
.SAT...NW wind 30 kt. Seas 10 ft.

$$

PKZ174-220100-
Nikolski to Seguam Island Pacific Side-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...E wind 25 kt increasing to 35 kt in the afternoon. 
Seas 9 ft.
.TONIGHT...E wind 40 kt. Seas 15 ft. Rain.
.WED...NE wind 40 kt becoming N 30 kt in the afternoon. 
Seas 17 ft.
.WED NIGHT...N wind 30 kt. Seas 15 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...E wind 30 kt. Seas 8 ft.
.SAT...NW wind 35 kt. Seas 10 ft.

$$

PKZ175-220100-
Seguam Island to Adak Bering Side-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 9 ft.
.TONIGHT...NE wind 30 kt. Seas 11 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.WED NIGHT...N wind 20 kt. Seas 10 ft.
.THU...S wind 15 kt. Seas 8 ft.
.FRI...N wind 30 kt. Seas 6 ft.
.SAT...NW wind 30 kt. Seas 10 ft.

$$

PKZ176-220100-
Seguam Island to Adak Pacific Side-
340 AM AKDT Tue Sep 21 2021

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...E wind 30 kt increasing to 40 kt in the afternoon. 
Seas 12 ft.
.TONIGHT...NE wind 40 kt. Seas 17 ft.
.WED...NE wind 35 kt. Seas 17 ft.
.WED NIGHT...N wind 25 kt. Seas 12 ft.
.THU...SW wind 15 kt. Seas 9 ft.
.FRI...NW wind 30 kt. Seas 10 ft.
.SAT...NW wind 35 kt. Seas 10 ft.

$$

PKZ177-220100-
Adak to Kiska-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 11 ft.
.TONIGHT...NE wind 30 kt. Seas 12 ft.
.WED...NE wind 25 kt. Seas 11 ft.
.WED NIGHT...N wind 15 kt. Seas 9 ft.
.THU...S wind 15 kt. Seas 6 ft.
.FRI THROUGH SAT...W wind 30 kt. Seas 10 ft.

$$

PKZ178-220100-
Kiska to Attu-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 20 kt. Seas 9 ft.
.TONIGHT...E wind 15 kt. Seas 9 ft.
.WED...NE wind 15 kt. Seas 9 ft.
.WED NIGHT...S wind 15 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 6 ft.
.FRI...NW wind 25 kt. Seas 9 ft.
.SAT...SW wind 20 kt. Seas 8 ft.

$$

PKZ179-220100-
Pribilof Islands Near Shore Waters-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...SE wind 15 kt. Seas 3 ft.
.TONIGHT...E wind 20 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 9 ft.
.WED NIGHT...N wind 25 kt. Seas 10 ft.
.THU...N wind 20 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 6 ft.
.SAT...NW wind 30 kt. Seas 9 ft.

$$

PKZ180-220100-
Kuskokwim Delta and Etolin Strait-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...N wind 20 kt diminishing to 10 kt in the afternoon. 
Seas 4 ft.
.TONIGHT...NW wind 20 kt. Seas 3 ft.
.WED...N wind 30 kt. Seas 7 ft.
.WED NIGHT...N wind 30 kt. Seas 8 ft.
.THU...N wind 30 kt. Seas 9 ft.
.FRI...SW wind 20 kt. Seas 6 ft.
.SAT...N wind 30 kt. Seas 6 ft.

$$

PKZ181-220100-
North and West of Nunivak Island-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 25 kt. Seas 6 ft.
.TONIGHT...W wind 30 kt. Seas 8 ft.
.WED...N wind 30 kt. Seas 9 ft.
.WED NIGHT...N wind 25 kt. Seas 8 ft.
.THU...N wind 20 kt. Seas 7 ft.
.FRI...SW wind 15 kt. Seas 5 ft.
.SAT...NW wind 25 kt. Seas 6 ft.

$$

PKZ185-220100-
Saint Matthew Island Waters-
340 AM AKDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E of Saint Matthew Island, SW wind 25 kt. W of Saint
Matthew Island, SW wind 15 kt becoming N in the afternoon. Seas
5 ft.
.TONIGHT...NE wind 25 kt. Seas 7 ft.
.WED...NE wind 25 kt. Seas 8 ft.
.WED NIGHT...N wind 20 kt. Seas 7 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...NW wind 25 kt. Seas 10 ft.

$$

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

Issued	Product	Office	Lasted
Sep 19, 4:05 PM AKDT	Gale Warning	AFC	3 days
Sep 19, 4:05 PM AKDT	Small Craft Advisory	AFC	3 days
Sep 19, 4:24 PM AKDT	Winter Weather Advisory	AFC	54 hr
Sep 20, 3:36 AM AKDT	Gale Warning	AFC	60 hr
Sep 20, 4:36 AM AKDT	Gale Warning	AFC	4 days
Sep 20, 4:43 AM AKDT	Gale Warning	AFC	47 hr
Sep 20, 3:47 PM AKDT	Gale Warning	AFC	48 hr
Sep 20, 3:47 PM AKDT	Small Craft Advisory	AFC	3 days

Nearby

Small Craft Advisories in Alaska, 2021 Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.