Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 340, NWS Anchorage, AK

April 25, 2021

NWS Anchorage, AK issued this small craft advisory at Apr 25, 2021, 3:38 PM AKDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Apr 25, 2021, 3:38 PM AKDT (23:38 UTC)
Expired: Apr 27, 2021, 3:15 AM AKDT
In force: 36 hr
Issued by: NWS Anchorage, AK

The text

As transmitted.

654 
FZAK52 PAFC 252338
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
338 PM AKDT Sun Apr 25 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.

PKZ199-261300-
338 PM AKDT Sun Apr 25 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 990 mb low 105 nm southwest of Dutch Harbor merges with a 983 mb 
North Pacific low Mon morning then merges with another North Pacific 
low to form a 980 mb low Tue morning. The low continues moving south.
Its front moves south of the Alaska Peninsula through Tue afternoon.

$$

PKZ150-261300-
South of the AK Peninsula Sitkinak to Castle Cape-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 40 kt. Seas 13 ft. Rain.
.MON...SE wind 35 kt diminishing to 25 kt in the afternoon. Seas 12 ft.
.MON NIGHT...E wind 25 kt. Seas 8 ft.
.TUE AND TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 20 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 7 ft.
.FRI...SW wind 15 kt. Seas 7 ft.

$$

PKZ155-261300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
338 PM AKDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...E wind 15 kt except N 25 kt from the Shumagin Islands E.
Seas 8 ft.
.MON...NW wind 20 kt in the morning becoming variable 10 kt. Seas
8 ft.
.MON NIGHT...NE wind 20 kt. Seas 7 ft.
.TUE...NE wind 25 kt. Seas 8 ft.
.TUE NIGHT...NE wind 20 kt. Seas 7 ft.
.WED...N wind 20 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 7 ft.
.FRI...SE wind 15 kt. Seas 8 ft.

$$

PKZ160-261300-
Bristol Bay-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas 6 ft. Rain.
.MON...NE wind 30 kt. Seas 5 ft.
.MON NIGHT...E wind 25 kt. Seas 3 ft.
.TUE...NE wind 15 kt. Seas 2 ft.
.TUE NIGHT...NW wind 10 kt. Seas 1 foot.
.WED...W wind 10 kt. Seas 2 ft.
.THU...W wind 15 kt. Seas 3 ft.
.FRI...E wind 15 kt. Seas 2 ft.

$$

PKZ165-261300-
Port Heiden to Cape Sarichef-
338 PM AKDT Sun Apr 25 2021

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

.TONIGHT...E wind 15 kt except E 25 kt from Port Moller E. Seas 5 ft. Rain.
.MON...N wind 25 kt except NE 30 kt from Port Moller E. Seas 8 ft. Rain.
.MON NIGHT...NE wind 30 kt. Seas 9 ft.
.TUE...N wind 20 kt. Seas 7 ft.
.TUE NIGHT...N wind 15 kt. Seas 5 ft.
.WED THROUGH THU...N wind 15 kt. Seas 4 ft.
.FRI...E wind 15 kt. Seas 4 ft.

$$

PKZ170-261300-
Cape Sarichef to Nikolski Bering Side-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...NE wind 20 kt becoming N 30 kt after midnight. Seas 6 ft. Rain.
.MON...N wind 35 kt. Seas 14 ft. Rain.
.MON NIGHT...N wind 35 kt. Seas 13 ft.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...NE wind 20 kt. Seas 7 ft.
.WED THROUGH FRI...E wind 15 kt. Seas 5 ft.

$$

PKZ171-261300-
Unalaska Bay-
338 PM AKDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming N 15 kt after midnight.
Seas 3 ft. Rain.
.MON...NW wind 20 kt. Seas 7 ft. Rain.
.MON NIGHT...N wind 25 kt. Seas 10 ft. Rain.
.TUE AND TUE NIGHT...N wind 15 kt. Seas 5 ft.
.WED...N wind 10 kt. Seas 3 ft.
.THU...Variable wind less than 10 kt. Seas 3 ft.
.FRI...E wind 10 kt. Seas 2 ft.

$$

PKZ172-261300-
Cape Sarichef to Nikolski Pacific Side-
338 PM AKDT Sun Apr 25 2021

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

.TONIGHT...Variable wind 10 kt becoming N 20 kt after midnight. Seas
7 ft.
.MON...N wind 30 kt. Seas 7 ft.
.MON NIGHT...N wind 30 kt. Seas 8 ft.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED THROUGH FRI...E wind 15 kt. Seas 7 ft.

$$

PKZ173-261300-
Nikolski to Seguam Island Bering Side-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 12 ft.
.MON...N wind 35 kt. Seas 15 ft.
.MON NIGHT...N wind 35 kt. Seas 15 ft.
.TUE...N wind 30 kt. Seas 13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 5 ft.
.THU...NE wind 15 kt. Seas 5 ft.
.FRI...NE wind 20 kt. Seas 5 ft.

$$

PKZ174-261300-
Nikolski to Seguam Island Pacific Side-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 10 ft.
.MON...N wind 40 kt. Seas 16 ft.
.MON NIGHT...N wind 40 kt. Seas 16 ft.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED THROUGH THU...E wind 15 kt. Seas 9 ft.
.FRI...NE wind 20 kt. Seas 9 ft.

$$

PKZ175-261300-
Seguam Island to Adak Bering Side-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...N wind 35 kt. Seas 12 ft.
.MON...N wind 35 kt. Seas 13 ft.
.MON NIGHT...N wind 35 kt. Seas 12 ft.
.TUE...NE wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 15 kt. Seas 6 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 7 ft.
.FRI...N wind 20 kt. Seas 5 ft.

$$

PKZ176-261300-
Seguam Island to Adak Pacific Side-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...N wind 35 kt. Seas 12 ft.
.MON...N wind 35 kt. Seas 12 ft.
.MON NIGHT...N wind 35 kt. Seas 11 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 15 kt. Seas 6 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 13 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ177-261300-
Adak to Kiska-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 10 ft. 
.MON...N wind 30 kt. Seas 10 ft.
.MON NIGHT...N wind 20 kt. Seas 7 ft.
.TUE...E wind 25 kt. Seas 6 ft.
.TUE NIGHT...SE wind 30 kt. Seas 11 ft.
.WED...E wind 30 kt. Seas 16 ft.
.THU...NE wind 25 kt. Seas 12 ft.
.FRI...NW wind 25 kt. Seas 9 ft.

$$

PKZ178-261300-
Kiska to Attu-
338 PM AKDT Sun Apr 25 2021

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.MON...Variable wind 15 kt. Seas 5 ft. 
.MON NIGHT...SE wind 15 kt increasing to 25 kt after midnight. Seas 6 ft.
.TUE...SE wind 40 kt. Seas 11 ft.
.TUE NIGHT...E wind 35 kt. Seas 21 ft.
.WED...E wind 35 kt. Seas 20 ft.
.THU...N wind 25 kt. Seas 13 ft.
.FRI...NW wind 25 kt. Seas 9 ft.

$$

PKZ179-261300-
Pribilof Islands Near Shore Waters-
338 PM AKDT Sun Apr 25 2021

...GALE WARNING MONDAY...

.TONIGHT...N wind 30 kt. Seas 9 ft.
.MON...N wind 35 kt. Seas 10 ft.
.MON NIGHT...N wind 30 kt. Seas 10 ft.
.TUE...N wind 25 kt. Seas 8 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED...N wind 20 kt. Seas 4 ft.
.THU THROUGH FRI...NE wind 15 kt. Seas 5 ft.

$$

PKZ180-261300-
Kuskokwim Delta and Etolin Strait-
338 PM AKDT Sun Apr 25 2021

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

.TONIGHT...NE wind 25 kt. Seas in ice free waters 6 ft. Rain.
.MON...N wind 30 kt. Seas in ice free waters 6 ft.
.MON NIGHT...N wind 25 kt. Seas in ice free waters 5 ft.
.TUE AND TUE NIGHT...NW wind 20 kt. Seas in ice free waters 4 ft.
.WED...NW wind 20 kt. Seas in ice free waters 3 ft.
.THU...NW wind 15 kt. Seas in ice free waters 4 ft.
.FRI...E wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ181-261300-
North and West of Nunivak Island-
338 PM AKDT Sun Apr 25 2021

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

.TONIGHT...N wind 25 kt. Seas in ice free waters 2 ft.
.MON...N wind 25 kt. Seas in ice free waters 2 ft.
.MON NIGHT...N wind 25 kt. Seas in ice free waters 2 ft.
.TUE...N wind 20 kt. Seas in ice free waters 2 ft.
.TUE NIGHT...NW wind 15 kt. Seas in ice free waters 2 ft.
.WED...NW wind 20 kt. Seas in ice free waters 2 ft.
.THU...W wind 15 kt. Seas in ice free waters 2 ft.
.FRI...Variable wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ185-261300-
Saint Matthew Island Waters-
338 PM AKDT Sun Apr 25 2021

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

.TONIGHT...N wind 25 kt. Seas in ice free waters 5 ft.
.MON...NW wind 25 kt. Seas in ice free waters 5 ft.
.MON NIGHT...NW wind 25 kt. Seas in ice free waters 4 ft.
.TUE...W wind 20 kt. Seas in ice free waters 3 ft.
.TUE NIGHT...NW wind 15 kt. Seas in ice free waters 3 ft.
.WED...N wind 20 kt. Seas in ice free waters 5 ft.
.THU...W wind 15 kt. Seas in ice free waters 6 ft.
.FRI...NW wind 15 kt. Seas in ice free waters 3 ft.

$$

3 follow-up statements

946 
FZAK52 PAFC 261156
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 AM AKDT Mon Apr 26 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.

PKZ199-270100-
356 AM AKDT Mon Apr 26 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 front off a North Pacific low lingers in the eastern Bering
through Tue. A 977 mb low moves to 390 nm southwest of Shemya on
Wed afternoon. Its front enters the western Bering Tue afternoon.

$$

PKZ150-270100-
South of the AK Peninsula Sitkinak to Castle Cape-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt diminishing to 25 kt in the afternoon. Seas
13 ft.
.TONIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...NE wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 20 kt. Seas 7 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...W wind 15 kt. Seas 6 ft.

$$

PKZ155-270100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 AM AKDT Mon Apr 26 2021

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

.TODAY...NW wind 15 kt. Seas 10 ft.
.TONIGHT...NE wind 20 kt. Seas 7 ft.
.TUE...NE wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 25 kt. Seas 8 ft.
.WED...N wind 20 kt. Seas 7 ft.
.THU THROUGH FRI...Variable wind 10 kt. Seas 7 ft.

$$

PKZ160-270100-
Bristol Bay-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 30 kt. Seas 7 ft.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...NE wind 15 kt. Seas 2 ft.
.TUE NIGHT...N wind 15 kt. Seas 2 foot.
.WED...NW wind 10 kt. Seas 2 ft.
.THU THROUGH FRI...NW wind 15 kt. Seas 2 ft.

$$

PKZ165-270100-
Port Heiden to Cape Sarichef-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 30 kt. Seas 12 ft. Rain.
.TONIGHT...NE wind 30 kt diminishing to 20 kt after midnight. Seas 
11 ft.
.TUE...N wind 20 kt. Seas 6 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED THROUGH FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ170-270100-
Cape Sarichef to Nikolski Bering Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 35 kt. Seas 13 ft. Rain.
.TONIGHT...N wind 35 kt. Seas 13 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. Seas
11 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED THROUGH FRI...NE wind 15 kt. Seas 6 ft.

$$

PKZ171-270100-
Unalaska Bay-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 5 ft building to 10 ft in the
afternoon. Rain.
.TONIGHT...N wind 25 kt. Seas 10 ft. Rain.
.TUE...N wind 15 kt. Seas 5 ft.
.TUE NIGHT...N wind 15 kt. Seas 5 ft.
.WED THROUGH FRI...E wind 10 kt. Seas 3 ft.

$$

PKZ172-270100-
Cape Sarichef to Nikolski Pacific Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING TONIGHT...

.TODAY...N wind 30 kt. Seas 7 ft.
.TONIGHT...N wind 35 kt diminishing to 25 kt after midnight. Seas 9 
ft.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 6 ft.
.WED...N wind 15 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 8 ft.
.FRI...E wind 15 kt. Seas 8 ft.

$$

PKZ173-270100-
Nikolski to Seguam Island Bering Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 35 kt. Seas 15 ft.
.TONIGHT...N wind 35 kt. Seas 14 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. Seas
13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 7 ft.
.WED THROUGH FRI...NE wind 15 kt. Seas 6 ft.

$$

PKZ174-270100-
Nikolski to Seguam Island Pacific Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 40 kt. Seas 16 ft.
.TONIGHT...N wind 35 kt. Seas 15 ft.
.TUE...N wind 30 kt. Seas 12 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 10 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 9 ft.

$$

PKZ175-270100-
Seguam Island to Adak Bering Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 14 ft.
.TONIGHT...N wind 30 kt. Seas 13 ft.
.TUE...N wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 15 kt. Seas 7 ft.
.WED THROUGH FRI...NE wind 20 kt. Seas 7 ft.

$$

PKZ176-270100-
Seguam Island to Adak Pacific Side-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 35 kt. Seas 13 ft.
.TONIGHT...N wind 35 kt. Seas 11 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 15 kt. Seas 6 ft.
.WED THROUGH THU...E wind 20 kt. Seas 13 ft.
.FRI...NE wind 15 kt. Seas 8 ft.

$$

PKZ177-270100-
Adak to Kiska-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 30 kt diminishing to 20 kt in the afternoon. Seas 10
ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 6 ft.
.TUE NIGHT...E wind 25 kt. Seas 11 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 15 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ178-270100-
Kiska to Attu-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING TUESDAY...

.TODAY...W wind 15 kt becoming variable 10 kt in the afternoon. Seas
5 ft.
.TONIGHT...SE wind 15 kt increasing to 25 kt after midnight. Seas
6 ft.
.TUE...SE wind 35 kt. Seas 12 ft.
.TUE NIGHT...E wind 35 kt. Seas 20 ft.
.WED...E wind 30 kt. Seas 19 ft.
.THU...NE wind 30 kt. Seas 13 ft.
.FRI...N wind 20 kt. Seas 9 ft.

$$

PKZ179-270100-
Pribilof Islands Near Shore Waters-
356 AM AKDT Mon Apr 26 2021

...GALE WARNING TODAY...

.TODAY...N wind 35 kt. Seas 10 ft.
.TONIGHT...N wind 30 kt. Seas 10 ft.
.TUE...N wind 25 kt. Seas 8 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 5 ft.

$$

PKZ180-270100-
Kuskokwim Delta and Etolin Strait-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas in ice free waters 10 ft.
.TONIGHT...N wind 25 kt. Seas in ice free waters 7 ft.
.TUE...N wind 20 kt. Seas in ice free waters 4 ft.
.TUE NIGHT...N wind 15 kt. Seas in ice free waters 3 ft.
.WED THROUGH THU...NW wind 20 kt. Seas in ice free waters 4 ft.
.FRI...NW wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ181-270100-
North and West of Nunivak Island-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas in ice free waters 6 ft.
.TONIGHT...N wind 25 kt. Seas in ice free waters 6 ft.
.TUE...N wind 20 kt. Seas in ice free waters 5 ft.
.TUE NIGHT...NW wind 20 kt. Seas in ice free waters 3 foot.
.WED THROUGH THU...NW wind 20 kt. Seas in ice free waters 2 ft.
.FRI...NW wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ185-270100-
Saint Matthew Island Waters-
356 AM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

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

$$

150 
FZAK52 PAFC 262333
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
333 PM AKDT Mon Apr 26 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.

PKZ199-271245-
333 PM AKDT Mon Apr 26 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 987 mb North Pacific low moves east for Wed afternoon. Its 
front decays over Southwest Alaska by Wed afternoon. High pressure
crosses the Bering through Wed afternoon. A 945 mb North Pacific 
low Mon night moves to 380 nm South of Attu at 978 mb for Wed 
afternoon. Its front moves over the Western Aleutians Wed 
afternoon.


$$

PKZ150-271245-
South of the AK Peninsula Sitkinak to Castle Cape-
333 PM AKDT Mon Apr 26 2021

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

.TONIGHT...NE wind 25 kt. Seas 8 ft.
.TUE...NE wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 20 kt. Seas 8 ft.
.WED NIGHT...NE wind 15 kt. Seas 6 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 6 ft.
.SAT...SE wind 15 kt. Seas 6 ft.

$$

PKZ155-271245-
South of the AK Peninsula Castle Cape to Cape Sarichef-
333 PM AKDT Mon Apr 26 2021

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

.TONIGHT...NE wind 20 kt. Seas 7 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 25 kt. Seas 8 ft.
.WED...N wind 20 kt. Seas 8 ft.
.WED NIGHT...N wind 15 kt. Seas 6 ft.
.THU...N wind 15 kt. Seas 7 ft.
.FRI...Variable wind 10 kt. Seas 7 ft.
.SAT...E wind 15 kt. Seas 6 ft.

$$

PKZ160-271245-
Bristol Bay-
333 PM AKDT Mon Apr 26 2021

.TONIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.TUE NIGHT...N wind 15 kt. Seas 2 ft.
.WED...N wind 10 kt. Seas 2 ft.
.WED NIGHT...W wind 10 kt. Seas 2 ft.
.THU THROUGH FRI...NW wind 15 kt. Seas 3 ft.
.SAT...NE wind 10 kt. Seas 2 ft.

$$

PKZ165-271245-
Port Heiden to Cape Sarichef-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.TUE...N wind 20 kt. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED AND WED NIGHT...N wind 15 kt. Seas 4 ft.
.THU...N wind 20 kt. Seas 7 ft.
.FRI THROUGH SAT...NE wind 15 kt. Seas 4 ft.

$$

PKZ170-271245-
Cape Sarichef to Nikolski Bering Side-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 13 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 11 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED AND WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...NE wind 15 kt. Seas 5 ft.

$$

PKZ171-271245-
Unalaska Bay-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 30 kt. Seas 12 ft.
.TUE...N wind 20 kt. Seas 7 ft.
.TUE NIGHT...N wind 15 kt diminishing to 10 kt after midnight.
Seas 5 ft subsiding to 3 ft after midnight.
.WED AND WED NIGHT...N wind 10 kt. Seas 3 ft.
.THU...NE wind 15 kt. Seas 3 ft.
.FRI THROUGH SAT...NE wind 10 kt. Seas 3 ft.

$$

PKZ172-271245-
Cape Sarichef to Nikolski Pacific Side-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 9 ft.
.TUE...N wind 25 kt. Seas 7 ft.
.TUE NIGHT...N wind 20 kt. Seas 6 ft.
.WED...N wind 15 kt. Seas 5 ft.
.WED NIGHT...Variable wind 10 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 8 ft.
.FRI THROUGH SAT...NE wind 15 kt. Seas 7 ft.

$$

PKZ173-271245-
Nikolski to Seguam Island Bering Side-
333 PM AKDT Mon Apr 26 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 14 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 8 ft.
.WED AND WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...NE wind 15 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 5 ft.

$$

PKZ174-271245-
Nikolski to Seguam Island Pacific Side-
333 PM AKDT Mon Apr 26 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 15 ft.
.TUE...N wind 30 kt diminishing to 20 kt in the afternoon. 
Seas 12 ft.
.TUE NIGHT...N wind 20 kt. Seas 7 ft.
.WED AND WED NIGHT...Variable wind 10 kt. Seas 9 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 9 ft.
.SAT...N wind 20 kt. Seas 6 ft.

$$

PKZ175-271245-
Seguam Island to Adak Bering Side-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 13 ft.
.TUE...N wind 25 kt. Seas 10 ft.
.TUE NIGHT...NE wind 15 kt. Seas 7 ft.
.WED AND WED NIGHT...E wind 20 kt. Seas 7 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 6 ft.
.SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ176-271245-
Seguam Island to Adak Pacific Side-
333 PM AKDT Mon Apr 26 2021

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 11 ft.
.TUE...N wind 25 kt. Seas 9 ft.
.TUE NIGHT...NE wind 15 kt. Seas 6 ft.
.WED AND WED NIGHT...E wind 15 kt. Seas 13 ft.
.THU...E wind 20 kt. Seas 12 ft.
.FRI...NE wind 15 kt. Seas 8 ft.
.SAT...NW wind 15 kt. Seas 7 ft.

$$

PKZ177-271245-
Adak to Kiska-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 6 ft.
.TUE NIGHT...E wind 25 kt. Seas 6 ft building to 11 ft 
after midnight.
.WED AND WED NIGHT...E wind 25 kt. Seas 15 ft.
.THU...NE wind 20 kt. Seas 13 ft.
.FRI...N wind 20 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ178-271245-
Kiska to Attu-
333 PM AKDT Mon Apr 26 2021

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

.TONIGHT...SE wind 15 kt increasing to 25 kt after midnight. 
Seas 6 ft.
.TUE...SE wind 35 kt. Seas 8 ft building to 13 ft in the
afternoon. Rain.
.TUE NIGHT...E wind 35 kt. Seas 17 ft Bering side...21 ft 
Pacific side. Rain.
.WED AND WED NIGHT...NE wind 30 kt. Seas 18 ft.
.THU...NE wind 25 kt. Seas 13 ft.
.FRI...N wind 20 kt. Seas 9 ft.
.SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ179-271245-
Pribilof Islands Near Shore Waters-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 30 kt. Seas 11 ft.
.TUE...N wind 25 kt. Seas 8 ft.
.TUE NIGHT...N wind 20 kt. Seas 5 ft.
.WED...N wind 15 kt. Seas 4 ft.
.WED NIGHT...NE wind 20 kt. Seas 6 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI THROUGH SAT...NE wind 15 kt. Seas 4 ft.

$$

PKZ180-271245-
Kuskokwim Delta and Etolin Strait-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...N wind 25 kt. Seas in ice free waters 6 ft.
.TUE...N wind 20 kt. Seas in ice free waters 4 ft.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 3 ft.
.WED AND WED NIGHT...N wind 20 kt. Seas in ice free waters 3 ft.
.THU...NW wind 20 kt. Seas in ice free waters 5 ft.
.FRI THROUGH SAT...N wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ181-271245-
North and West of Nunivak Island-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...N wind 25 kt. Seas in ice free waters 5 ft.
.TUE...N wind 25 kt. Seas in ice free waters 4 ft.
.TUE NIGHT...N wind 20 kt. Seas in ice free waters 3 ft.
.WED AND WED NIGHT...N wind 20 kt. Seas in ice free waters 2 ft.
.THU...NW wind 20 kt. Seas in ice free waters 2 ft.
.FRI THROUGH SAT...N wind 15 kt. Seas in ice free waters 1 foot.

$$

PKZ185-271245-
Saint Matthew Island Waters-
333 PM AKDT Mon Apr 26 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 4 ft.
.TUE...N wind 20 kt E of Saint Matthew Island...W 15 kt 
W of Saint Matthew Island. Seas 3 ft.
.TUE NIGHT...NW wind 15 kt. Seas 3 ft.
.WED AND WED NIGHT...N wind 20 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 6 ft.
.FRI...Variable wind 10 kt. Seas 4 ft.
.SAT...N wind 15 kt. Seas 3 ft.

$$

457 
FZAK52 PAFC 271115
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
315 AM AKDT Tue Apr 27 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.

PKZ199-280000-
315 AM AKDT Tue Apr 27 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

High pressure crosses the Bering through Wed night. A 976 mb low
is 400 nm southwest of Shemya on Wed. Its front moves across the
western Bering through Wed night. 

$$

PKZ150-280000-
South of the AK Peninsula Sitkinak to Castle Cape-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 25 kt. Seas 9 ft.
.TONIGHT...NE wind 25 kt. Seas 9 ft.
.WED...NE wind 25 kt diminishing to 15 kt in the afternoon. Seas
8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 7 ft.
.SAT...SE wind 15 kt. Seas 6 ft.

$$

PKZ155-280000-
South of the AK Peninsula Castle Cape to Cape Sarichef-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

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

$$

PKZ160-280000-
Bristol Bay-
315 AM AKDT Tue Apr 27 2021

.TODAY...NE wind 20 kt. Seas 3 ft.
.TONIGHT...N wind 15 kt. Seas 2 ft.
.WED...NE wind 10 kt. Seas 2 ft.
.WED NIGHT...W wind 15 kt. Seas 2 foot.
.THU THROUGH FRI...W wind 20 kt. Seas 3 ft.
.SAT...E wind 15 kt. Seas 2 ft.

$$

PKZ165-280000-
Port Heiden to Cape Sarichef-
315 AM AKDT Tue Apr 27 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 20 kt. Seas 6 ft.
.WED...NE wind 15 kt. Seas 4 ft.
.WED NIGHT...N wind 15 kt. Seas 4 ft.
.THU...N wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 3 ft.

$$

PKZ170-280000-
Cape Sarichef to Nikolski Bering Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 30 kt diminishing to 20 kt in the afternoon. Seas
11 ft subsiding to 8 ft in the afternoon.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.WED...NE wind 15 kt. Seas 5 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU...NE wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 5 ft.
.SAT...N wind 20 kt. Seas 5 ft.

$$

PKZ171-280000-
Unalaska Bay-
315 AM AKDT Tue Apr 27 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 15 kt diminishing to 10 kt after midnight. Seas
5 ft subsiding to 3 ft after midnight.
.WED...N wind 10 kt. Seas 3 ft.
.WED NIGHT...N wind 10 kt. Seas 3 ft.
.THU...NE wind 15 kt. Seas 5 ft.
.FRI...E wind 10 kt. Seas 3 ft.
.SAT...NE wind 15 kt. Seas 2 ft.

$$

PKZ172-280000-
Cape Sarichef to Nikolski Pacific Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 7 ft.
.TONIGHT...N wind 20 kt. Seas 6 ft.
.WED...N wind 15 kt. Seas 5 ft.
.WED NIGHT...Variable wind 10 kt. Seas 7 ft.
.THU...NE wind 15 kt. Seas 9 ft.
.FRI...E wind 15 kt. Seas 7 ft.
.SAT...NE wind 20 kt. Seas 7 ft.

$$

PKZ173-280000-
Nikolski to Seguam Island Bering Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft.
.TONIGHT...NE wind 20 kt. Seas 8 ft.
.WED...NE wind 15 kt. Seas 5 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 6 ft.
.SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ174-280000-
Nikolski to Seguam Island Pacific Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt diminishing to 20 kt in the afternoon. Seas
12 ft.
.TONIGHT...N wind 20 kt. Seas 8 ft.
.WED...E wind 10 kt. Seas 6 ft.
.WED NIGHT...Variable wind 10 kt. Seas 11 ft.
.THU THROUGH FRI...E wind 15 kt. Seas 9 ft.
.SAT...N wind 20 kt. Seas 7 ft.

$$

PKZ175-280000-
Seguam Island to Adak Bering Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 10 ft.
.TONIGHT...NE wind 15 kt. Seas 7 ft.
.WED...E wind 15 kt. Seas 6 ft.
.WED NIGHT...E wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...NE wind 20 kt. Seas 6 ft.
.SAT...NW wind 15 kt. Seas 7 ft.

$$

PKZ176-280000-
Seguam Island to Adak Pacific Side-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...N wind 30 kt becoming NE 20 kt in the afternoon. Seas 9
ft.
.TONIGHT...NE wind 15 kt. Seas 6 ft.
.WED...E wind 15 kt. Seas 11 ft.
.WED NIGHT...E wind 20 kt. Seas 12 ft.
.THU...E wind 20 kt. Seas 12 ft.
.FRI...NE wind 15 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 7 ft.

$$

PKZ177-280000-
Adak to Kiska-
315 AM AKDT Tue Apr 27 2021

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

.TODAY...E wind 20 kt. Seas 7 ft.
.TONIGHT...E wind 25 kt. Seas 6 ft building to 11 ft after
midnight.
.WED...E wind 25 kt. Seas 15 ft.
.WED NIGHT...E wind 25 kt. Seas 14 ft.
.THU...E wind 25 kt. Seas 11 ft.
.FRI...N wind 20 kt. Seas 8 ft.
.SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ178-280000-
Kiska to Attu-
315 AM AKDT Tue Apr 27 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 40 kt. Seas 12 ft. Rain.
.TONIGHT...E wind 35 kt. Seas 19 ft. Rain.
.WED...E wind 30 kt. Seas 19 ft.
.WED NIGHT...E wind 30 kt. Seas 15 ft.
.THU...NE wind 25 kt. Seas 11 ft.
.FRI...N wind 20 kt. Seas 8 ft.
.SAT...NW wind 15 kt. Seas 5 ft.

$$

PKZ179-280000-
Pribilof Islands Near Shore Waters-
315 AM AKDT Tue Apr 27 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 8 ft.
.TONIGHT...N wind 20 kt. Seas 5 ft.
.WED...N wind 20 kt. Seas 4 ft.
.WED NIGHT...NE wind 20 kt. Seas 7 ft.
.THU...NE wind 20 kt. Seas 7 ft.
.FRI...Variable wind 10 kt. Seas 3 ft.
.SAT...W wind 15 kt. Seas 2 ft.

$$

PKZ180-280000-
Kuskokwim Delta and Etolin Strait-
315 AM AKDT Tue Apr 27 2021

.TODAY...N wind 20 kt. Seas in ice free waters 4 ft.
.TONIGHT...N wind 20 kt. Seas in ice free waters 3 ft.
.WED...N wind 20 kt. Seas in ice free waters 3 ft.
.WED NIGHT...N wind 25 kt. Seas in ice free waters 4 ft.
.THU...NW wind 25 kt. Seas in ice free waters 5 ft.
.FRI...W wind 20 kt. Seas in ice free waters 3 ft.
.SAT...E wind 10 kt. Seas in ice free waters 2 ft.

$$

PKZ181-280000-
North and West of Nunivak Island-
315 AM AKDT Tue Apr 27 2021

.TODAY...N wind 20 kt. Seas in ice free waters 4 ft.
.TONIGHT...N wind 20 kt. Seas in ice free waters 3 ft.
.WED...N wind 20 kt. Seas in ice free waters 3 ft.
.WED NIGHT...N wind 25 kt. Seas in ice free waters 2 ft.
.THU...NW wind 20 kt. Seas in ice free waters 3 ft.
.FRI...W wind 15 kt. Seas in ice free waters 2 ft.
.SAT...Variable wind 10 kt. Seas in ice free waters 1 foot.

$$

PKZ185-280000-
Saint Matthew Island Waters-
315 AM AKDT Tue Apr 27 2021

.TODAY...N wind 20 kt E of Saint Matthew Island...W 15 kt W of
Saint Matthew Island. Seas 4 ft.
.TONIGHT...NW wind 15 kt. Seas 3 ft.
.WED...N wind 20 kt. Seas 4 ft.
.WED NIGHT...N wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.

$$

The office that day

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

Issued	Product	Office	Lasted
Apr 25, 2:21 AM AKDT	Small Craft Advisory	AFC	3 days
Apr 25, 3:13 AM AKDT	Gale Warning	AFC	36 hr
Apr 25, 3:15 AM AKDT	Gale Warning	AFC	48 hr
Apr 25, 3:15 AM AKDT	Small Craft Advisory	AFC	48 hr
Apr 25, 3:23 PM AKDT	Small Craft Advisory	AFC	24 hr
Apr 25, 3:38 PM AKDT	Gale Warning	AFC	24 hr
Apr 25, 3:39 PM AKDT	Gale Warning	AFC	24 hr

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.