Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 739, NWS Anchorage, AK

September 19, 2021

NWS Anchorage, AK issued this small craft advisory at Sep 19, 2021, 3:45 PM AKDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Sep 19, 2021, 3:45 PM AKDT (23:45 UTC)
Expired: Sep 20, 2021, 3:47 PM AKDT
In force: 24 hr
Issued by: NWS Anchorage, AK

The text

As transmitted.

589 
FZAK52 PAFC 192345
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 PM AKDT Sun Sep 19 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.

PKZ199-201215-
345 PM AKDT Sun Sep 19 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.

A 989 mb low 240 nm south of Port Heiden moves northeast. A well 
developed 988 mb North Pacific low 480 nm south of Shemya Mon 
afternoon deepens as it moves 280 nm south of Adak at 975 mb for Tue 
afternoon. Its front pushes toward the Southern Aleutians through Tue
afternoon. 

$$

PKZ150-201215-
South of the AK Peninsula Sitkinak to Castle Cape-
345 PM AKDT Sun Sep 19 2021

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 12 ft.
.MON...NW wind 30 kt. Seas 11 ft.
.MON NIGHT...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 40 kt. Seas 15 ft.
.THU...N wind 25 kt. Seas 15 ft.
.FRI...W wind 25 kt. Seas 11 ft.

$$

PKZ155-201215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 PM AKDT Sun Sep 19 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 14 ft.
.MON...NW wind 30 kt. Seas 11 ft.
.MON NIGHT...N wind 25 kt diminishing to 15 kt after midnight.
Seas 8 ft.
.TUE...E wind 20 kt. Seas 4 ft.
.TUE NIGHT...E wind 30 kt. Seas 5 ft.
.WED...NE wind 35 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 15 ft.
.FRI...W wind 25 kt. Seas 8 ft.

$$

PKZ160-201215-
Bristol Bay-
345 PM AKDT Sun Sep 19 2021

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

.TONIGHT...N wind 20 kt. Seas 5 ft.
.MON...N wind 25 kt. Seas 7 ft.
.MON NIGHT...N wind 25 kt. Seas 7 ft.
.TUE AND TUE NIGHT...NE wind 15 kt. Seas 5 ft.
.WED...NE wind 25 kt. Seas 7 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI...NW wind 20 kt. Seas 6 ft.

$$

PKZ165-201215-
Port Heiden to Cape Sarichef-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.MON...N wind 25 kt. Seas 8 ft.
.MON NIGHT...N wind 20 kt. Seas 7 ft.
.TUE...NE wind 20 kt. Seas 6 ft.
.TUE NIGHT...E wind 25 kt. Seas 7 ft.
.WED...NE wind 25 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 11 ft.
.FRI...NW wind 25 kt. Seas 7 ft.

$$

PKZ170-201215-
Cape Sarichef to Nikolski Bering Side-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.MON...NW wind 20 kt. Seas 6 ft.
.MON NIGHT...E 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 14 ft.
.THU...NW wind 25 kt. Seas 12 ft.
.FRI...N wind 20 kt. Seas 6 ft.

$$

PKZ171-201215-
Unalaska Bay-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.MON...NW wind 20 kt decreasing to 10 kt in the afternoon. Seas 6 
ft subsiding to 3 ft in the afternoon.
.MON NIGHT...N wind 10 kt in the evening becoming variable less
than 10 kt. Seas 3 ft.
.TUE...SE wind 20 kt. Seas 3 ft.
.TUE NIGHT...E wind 25 kt. Seas 4 ft.
.WED...NE wind 20 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 7 ft.
.FRI...E wind 10 kt. Seas 3 ft.

$$

PKZ172-201215-
Cape Sarichef to Nikolski Pacific Side-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...N wind 30 kt. Seas 13 ft.
.MON...NW wind 25 kt. Seas 9 ft.
.MON NIGHT...NW wind 15 kt in the evening becoming variable 10 kt.
Seas 5 ft.
.TUE...E wind 30 kt. Seas 5 ft.
.TUE NIGHT...E wind 35 kt. Seas 11 ft.
.WED...NE wind 40 kt. Seas 16 ft.
.THU...NW wind 30 kt. Seas 14 ft.
.FRI...S wind 15 kt. Seas 8 ft.

$$

PKZ173-201215-
Nikolski to Seguam Island Bering Side-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 20 kt. Seas 8 ft.
.MON...Variable wind 10 kt. Seas 5 ft.
.MON NIGHT...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...NE wind 30 kt. Seas 13 ft.
.THU...NW wind 25 kt. Seas 12 ft.
.FRI...NE wind 20 kt. Seas 9 ft.

$$

PKZ174-201215-
Nikolski to Seguam Island Pacific Side-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt diminishing to 20 kt after midnight. Seas
11 ft subsiding to 8 ft after midnight.
.MON...NW wind 15 kt becoming variable 10 kt in the afternoon. Seas 
7 ft.
.MON NIGHT...Variable wind 10 kt becoming SE 20 kt after midnight.
Seas 5 ft.
.TUE...E wind 40 kt. Seas 9 ft.
.TUE NIGHT...E wind 40 kt. Seas 16 ft.
.WED...NE wind 40 kt. Seas 17 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...SE wind 20 kt. Seas 12 ft.

$$

PKZ175-201215-
Seguam Island to Adak Bering Side-
345 PM AKDT Sun Sep 19 2021

.TONIGHT...NW wind 15 kt. Seas 7 ft.
.MON...Variable wind 10 kt. Seas 5 ft.
.MON NIGHT...SE wind 20 kt. Seas 4 ft.
.TUE AND TUE NIGHT...NE wind 35 kt. Seas 10 ft.
.WED...NE wind 30 kt. Seas 12 ft.
.THU...W wind 20 kt. Seas 9 ft.
.FRI...NW wind 25 kt. Seas 9 ft.

$$

PKZ176-201215-
Seguam Island to Adak Pacific Side-
345 PM AKDT Sun Sep 19 2021

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

.TONIGHT...NW wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.MON...Variable wind 10 kt becoming SE 15 kt in the afternoon.
Seas 5 ft.
.MON NIGHT...SE wind 25 kt. Seas 8 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 THROUGH FRI...NW wind 25 kt. Seas 12 ft.

$$

PKZ177-201215-
Adak to Kiska-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 6 ft.
.MON...SE wind 15 kt. Seas 5 ft.
.MON NIGHT...E wind 25 kt. Seas 8 ft.
.TUE AND TUE NIGHT...NE wind 35 kt. Seas 12 ft.
.WED...NE wind 25 kt. Seas 11 ft.
.THU...W wind 15 kt. Seas 8 ft.
.FRI...NW wind 25 kt. Seas 13 ft.

$$

PKZ178-201215-
Kiska to Attu-
345 PM AKDT Sun Sep 19 2021

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

.TONIGHT...SW wind 15 kt becoming S 25 kt after midnight. Seas 6
ft.
.MON...SE wind 30 kt. Seas 10 ft.
.MON NIGHT...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 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 13 ft.

$$

PKZ179-201215-
Pribilof Islands Near Shore Waters-
345 PM AKDT Sun Sep 19 2021

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.MON...NE wind 15 kt. Seas 4 ft.
.MON NIGHT...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 25 kt. Seas 8 ft.
.THU...NW wind 20 kt. Seas 8 ft.
.FRI...N wind 15 kt. Seas 6 ft.

$$

PKZ180-201215-
Kuskokwim Delta and Etolin Strait-
345 PM AKDT Sun Sep 19 2021

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

.TONIGHT...N wind 25 kt. Seas 8 ft.
.MON...N wind 30 kt. Seas 10 ft.
.MON NIGHT...N wind 25 kt. Seas 8 ft.
.TUE AND TUE NIGHT...E wind 15 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 7 ft.
.THU...N wind 25 kt. Seas 8 ft.
.FRI...NW wind 20 kt. Seas 5 ft.

$$

PKZ181-201215-
North and West of Nunivak Island-
345 PM AKDT Sun Sep 19 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas 8 ft.
.MON...N wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 3 ft.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED...N wind 25 kt. Seas 8 ft.
.THU THROUGH FRI...N wind 20 kt. Seas 5 ft.

$$

PKZ185-201215-
Saint Matthew Island Waters-
345 PM AKDT Sun Sep 19 2021

.TONIGHT...N wind 20 kt E of Saint Matthew Island...NE 15 kt W of
Saint Matthew Island. Seas 5 ft.
.MON...Variable wind 10 kt E of Saint Matthew Island...SE 15 kt W
of Saint Matthew Island. Seas 4 ft.
.MON NIGHT...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 THROUGH FRI...N wind 20 kt. Seas 6 ft.

$$

2 follow-up statements

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.

$$

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.

$$

The office that day

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

Issued	Product	Office	Lasted
Sep 18, 4:04 PM AKDT	Small Craft Advisory	AFC	36 hr
Sep 18, 4:14 PM AKDT	Small Craft Advisory	AFC	24 hr
Sep 19, 3:33 AM AKDT	Small Craft Advisory	AFC	5 days
Sep 19, 3:45 PM AKDT	Gale Warning	AFC	60 hr
Sep 19, 3:59 PM AKDT	Gale Warning	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.