Small Craft Advisory 432, NWS Anchorage, AK

456 
FZAK52 PAFC 301336 CCA
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
536 AM AKDT Sun May 30 2021

Updated to remove wording on Semisopochnoi Volcano.

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.

PKZ199-310015-
536 AM AKDT Sun May 30 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 981 mb low 550 nm south of Dutch Harbor moves east and is 
absorbed by a new 980 mb low 450 nm south of Cold Bay Mon morning 
and slowly moves to 390 nm southeast of Cold Bay at 988 mb by Tue 
morning. A low moves southwest out of Western Alaska Sun to 120 
west of St Paul Island at 1002 mb on Mon morning and then to 200 
nm north of Adak at 1001 mb by Tue morning.

$$

PKZ150-310015-
South of the AK Peninsula Sitkinak to Castle Cape-
536 AM AKDT Sun May 30 2021

...GALE WARNING MONDAY...

.TODAY...S wind 15 kt becoming E wind 20 kt in the afternoon. Seas 8
ft.
.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. Seas 10 
ft.
.MON...E wind 35 kt. Seas 12 ft. Rain.
.MON NIGHT...E wind 25 kt. Seas 9 ft.
.TUE...E wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 6 ft.

$$

PKZ155-310015-
South of the AK Peninsula Castle Cape to Cape Sarichef-
536 AM AKDT Sun May 30 2021

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...SE wind 15 kt becoming E 25 kt in the afternoon. Seas 8 ft.
.TONIGHT...NE wind 35 kt. Seas 12 ft.
.MON...NE wind 35 kt. Seas 13 ft. Rain.
.MON NIGHT...NE wind 25 kt. Seas 10 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 6 ft.
.THU...NW wind 15 kt. Seas 6 ft.

$$

PKZ160-310015-
Bristol Bay-
536 AM AKDT Sun May 30 2021

.TODAY...SE wind 15 kt. Seas 2 ft.
.TONIGHT...E wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...NE wind 15 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 1 foot.
.WED...E wind 10 kt. Seas 1 foot.
.THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ165-310015-
Port Heiden to Cape Sarichef-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...S wind 15 kt becoming E in the afternoon. Seas 4 ft.
.TONIGHT...NE wind 20 kt except E 25 kt from Port Moller E. Seas
4 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...SW wind 15 kt. Seas 3 ft.
.WED...Variable wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.

$$

PKZ170-310015-
Cape Sarichef to Nikolski Bering Side-
536 AM AKDT Sun May 30 2021

.TODAY...NE wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 20 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 4 ft.

$$

PKZ171-310015-
Unalaska Bay-
536 AM AKDT Sun May 30 2021

.TODAY...Variable wind less than 10 kt. Seas 3 ft.
.TONIGHT...N wind 10 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 3 ft.
.MON NIGHT...NW wind 10 kt. Seas 3 ft.
.TUE...W wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 2 ft.

$$

PKZ172-310015-
Cape Sarichef to Nikolski Pacific Side-
536 AM AKDT Sun May 30 2021

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

.TODAY...NE wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 30 kt. Seas 10 ft.
.MON...N wind 30 kt. Seas 12 ft.
.MON NIGHT...NW wind 25 kt. Seas 10 ft.
.TUE THROUGH THU...W wind 15 kt. Seas 6 ft.

$$

PKZ173-310015-
Nikolski to Seguam Island Bering Side-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 9 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...W wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 6 ft.

$$

PKZ174-310015-
Nikolski to Seguam Island Pacific Side-
536 AM AKDT Sun May 30 2021

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

$$

PKZ175-310015-
Seguam Island to Adak Bering Side-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 9 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 4 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.

$$

PKZ176-310015-
Seguam Island to Adak Pacific Side-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. Seas 6 
ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 6 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.WED THROUGH THU...W wind 15 kt. Seas 6 ft.

$$

PKZ177-310015-
Adak to Kiska-
536 AM AKDT Sun May 30 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 15 kt. Seas 6 ft.
.MON...NW wind 10 kt. Seas 5 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE...NW wind 15 kt. Seas 6 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 6 ft.

$$

PKZ178-310015-
Kiska to Attu-
536 AM AKDT Sun May 30 2021

.TODAY...N wind 20 kt. Seas 6 ft.
.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.MON...Variable wind 10 kt. Seas 5 ft.
.MON NIGHT...N wind 15 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.

$$

PKZ179-310015-
Pribilof Islands Near Shore Waters-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt diminshing to 15 kt in the afternoon. Seas 8 
ft.
.TONIGHT...N wind 15 kt. Seas 5 ft.
.MON...NE wind 10 kt. Seas 4 ft.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH THU...NW wind 15 kt. Seas 4 ft.

$$

PKZ180-310015-
Kuskokwim Delta and Etolin Strait-
536 AM AKDT Sun May 30 2021

.TODAY...N wind 20 kt becoming E 10 kt in the afternoon. Seas 4
ft.
.TONIGHT...E wind 15 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 3 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...SE wind 10 kt. Seas 2 ft.
.THU...N wind 15 kt. Seas 2 ft.

$$

PKZ181-310015-
North and West of Nunivak Island-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt diminishing to 15 kt in the afternoon. Seas
6 ft.
.TONIGHT...NE wind 15 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE THROUGH THU...NW wind 20 kt. Seas 5 ft.

$$

PKZ185-310015-
Saint Matthew Island Waters-
536 AM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 6 ft.
.TONIGHT...E of Saint Matthew Island, E wind 25 kt becoming NE 15
kt after midnight. W of Saint Matthew Island, N wind 25 kt. Seas 6 
ft.
.MON...NE wind 20 kt. Seas 5 ft.
.MON NIGHT...NE wind 20 kt. Seas 5 ft.
.TUE THROUGH WED...N wind 25 kt. Seas 6 ft.
.THU...NW wind 20 kt. Seas 5 ft.

$$

226 
FZAK52 PAFC 302022 CCA 
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
1222 PM AKDT Sun May 30 2021

Updated to add wording on Semisopochnoi Volcano.

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.

PKZ199-310015-
1222 PM AKDT Sun May 30 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano at 140 nm west of Adak is active.

A 981 mb low 550 nm south of Dutch Harbor moves east and is 
absorbed by a new 980 mb low 450 nm south of Cold Bay Mon morning 
and slowly moves to 390 nm southeast of Cold Bay at 988 mb by Tue 
morning. A low moves southwest out of Western Alaska Sun to 120 
west of St Paul Island at 1002 mb on Mon morning and then to 200 
nm north of Adak at 1001 mb by Tue morning.

$$

PKZ150-310015-
South of the AK Peninsula Sitkinak to Castle Cape-
1222 PM AKDT Sun May 30 2021

...GALE WARNING MONDAY...

.TODAY...S wind 15 kt becoming E wind 20 kt in the afternoon. Seas 8
ft.
.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. Seas 10 
ft.
.MON...E wind 35 kt. Seas 12 ft. Rain.
.MON NIGHT...E wind 25 kt. Seas 9 ft.
.TUE...E wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...N wind 15 kt. Seas 6 ft.

$$

PKZ155-310015-
South of the AK Peninsula Castle Cape to Cape Sarichef-
1222 PM AKDT Sun May 30 2021

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...SE wind 15 kt becoming E 25 kt in the afternoon. Seas 8 ft.
.TONIGHT...NE wind 35 kt. Seas 12 ft.
.MON...NE wind 35 kt. Seas 13 ft. Rain.
.MON NIGHT...NE wind 25 kt. Seas 10 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.WED...Variable wind 10 kt. Seas 6 ft.
.THU...NW wind 15 kt. Seas 6 ft.

$$

PKZ160-310015-
Bristol Bay-
1222 PM AKDT Sun May 30 2021

.TODAY...SE wind 15 kt. Seas 2 ft.
.TONIGHT...E wind 20 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...NE wind 15 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 1 foot.
.WED...E wind 10 kt. Seas 1 foot.
.THU...NE wind 10 kt. Seas 2 ft.

$$

PKZ165-310015-
Port Heiden to Cape Sarichef-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...S wind 15 kt becoming E in the afternoon. Seas 4 ft.
.TONIGHT...NE wind 20 kt except E 25 kt from Port Moller E. Seas
4 ft.
.MON...NE wind 20 kt. Seas 4 ft.
.MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...SW wind 15 kt. Seas 3 ft.
.WED...Variable wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.

$$

PKZ170-310015-
Cape Sarichef to Nikolski Bering Side-
1222 PM AKDT Sun May 30 2021

.TODAY...NE wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 20 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 4 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 4 ft.

$$

PKZ171-310015-
Unalaska Bay-
1222 PM AKDT Sun May 30 2021

.TODAY...Variable wind less than 10 kt. Seas 3 ft.
.TONIGHT...N wind 10 kt. Seas 3 ft.
.MON...N wind 10 kt. Seas 3 ft.
.MON NIGHT...NW wind 10 kt. Seas 3 ft.
.TUE...W wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.
.THU...W wind 10 kt. Seas 2 ft.

$$

PKZ172-310015-
Cape Sarichef to Nikolski Pacific Side-
1222 PM AKDT Sun May 30 2021

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

.TODAY...NE wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 30 kt. Seas 10 ft.
.MON...N wind 30 kt. Seas 12 ft.
.MON NIGHT...NW wind 25 kt. Seas 10 ft.
.TUE THROUGH THU...W wind 15 kt. Seas 6 ft.

$$

PKZ173-310015-
Nikolski to Seguam Island Bering Side-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 9 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...W wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 6 ft.

$$

PKZ174-310015-
Nikolski to Seguam Island Pacific Side-
1222 PM AKDT Sun May 30 2021

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

$$

PKZ175-310015-
Seguam Island to Adak Bering Side-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt. Seas 9 ft.
.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 4 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.

$$

PKZ176-310015-
Seguam Island to Adak Pacific Side-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 7 ft.
.TONIGHT...N wind 25 kt diminishing to 15 kt after midnight. Seas 6 
ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 6 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.WED THROUGH THU...W wind 15 kt. Seas 6 ft.

$$

PKZ177-310015-
Adak to Kiska-
1222 PM AKDT Sun May 30 2021

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 15 kt. Seas 6 ft.
.MON...NW wind 10 kt. Seas 5 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE...NW wind 15 kt. Seas 6 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 6 ft.

$$

PKZ178-310015-
Kiska to Attu-
1222 PM AKDT Sun May 30 2021

.TODAY...N wind 20 kt. Seas 6 ft.
.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.MON...Variable wind 10 kt. Seas 5 ft.
.MON NIGHT...N wind 15 kt. Seas 4 ft.
.TUE...N wind 15 kt. Seas 6 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.

$$

PKZ179-310015-
Pribilof Islands Near Shore Waters-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt diminshing to 15 kt in the afternoon. Seas 8 
ft.
.TONIGHT...N wind 15 kt. Seas 5 ft.
.MON...NE wind 10 kt. Seas 4 ft.
.MON NIGHT...NE wind 15 kt. Seas 3 ft.
.TUE THROUGH THU...NW wind 15 kt. Seas 4 ft.

$$

PKZ180-310015-
Kuskokwim Delta and Etolin Strait-
1222 PM AKDT Sun May 30 2021

.TODAY...N wind 20 kt becoming E 10 kt in the afternoon. Seas 4
ft.
.TONIGHT...E wind 15 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 3 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.WED...SE wind 10 kt. Seas 2 ft.
.THU...N wind 15 kt. Seas 2 ft.

$$

PKZ181-310015-
North and West of Nunivak Island-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TODAY...

.TODAY...N wind 25 kt diminishing to 15 kt in the afternoon. Seas
6 ft.
.TONIGHT...NE wind 15 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE THROUGH THU...NW wind 20 kt. Seas 5 ft.

$$

PKZ185-310015-
Saint Matthew Island Waters-
1222 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 6 ft.
.TONIGHT...E of Saint Matthew Island, E wind 25 kt becoming NE 15
kt after midnight. W of Saint Matthew Island, N wind 25 kt. Seas 6 
ft.
.MON...NE wind 20 kt. Seas 5 ft.
.MON NIGHT...NE wind 20 kt. Seas 5 ft.
.TUE THROUGH WED...N wind 25 kt. Seas 6 ft.
.THU...NW wind 20 kt. Seas 5 ft.

$$

715 
FZAK52 PAFC 302355
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 PM AKDT Sun May 30 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.

PKZ199-311230-
355 PM AKDT Sun May 30 2021
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Semisopochnoi Volcano at 140 nm west of Adak is active.

A 979 mb low 380 nm southeast of King Cove moves to 360 nm southeast
of Sand Point Tue afternoon. Its associated front moves toward the 
central and eastern Aleutians late tonight and weakens Mon 
afternoon. A 999 mb low 115 nm northwest of Mekoryuk moves to 120 nm
north of Adak Tue afternoon.

$$

PKZ150-311230-
South of the AK Peninsula Sitkinak to Castle Cape-
355 PM AKDT Sun May 30 2021

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

.TONIGHT...E wind 15 kt increasing to 30 kt after midnight. Seas 11 
ft.
.MON...NE wind 30 kt. Seas 13 ft. Rain.
.MON NIGHT...E wind 25 kt becoming SE 15 kt after midnight. Seas
9 ft.
.TUE AND TUE NIGHT...E wind 15 kt. Seas 8 ft.
.WED...Variable wind 10 kt. Seas 6 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 7 ft.

$$

PKZ155-311230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 PM AKDT Sun May 30 2021

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

.TONIGHT...NE wind 20 kt increasing to 30 kt after midnight. Seas 13
ft. Rain.
.MON...NE wind 30 kt. Seas 14 ft. Rain.
.MON NIGHT...NE wind 25 kt diminishing to 15 kt after midnight.
Seas 10 ft.
.TUE...N wind 15 kt. Seas 6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 7 ft.

$$

PKZ160-311230-
Bristol Bay-
355 PM AKDT Sun May 30 2021

.TONIGHT...SE wind 15 kt. Seas 3 ft.
.MON...NE wind 20 kt. Seas 3 ft.
.MON NIGHT...N wind 15 kt becoming NE after midnight. Seas 2 ft.
.TUE...E wind 10 kt. Seas 1 foot.
.TUE NIGHT...SE wind 15 kt. Seas 2 ft.
.WED...E wind 15 kt. Seas 1 foot.
.THU...NE wind 10 kt. Seas 2 ft.
.FRI...W wind 20 kt. Seas 3 ft.

$$

PKZ165-311230-
Port Heiden to Cape Sarichef-
355 PM AKDT Sun May 30 2021

.TONIGHT...NE wind 20 kt. Seas 4 ft.
.MON THROUGH MON NIGHT...NE wind 20 kt. Seas 4 ft.
.TUE...Variable wind 10 kt. Seas 3 ft.
.TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED...S wind 15 kt. Seas 3 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.FRI...W wind 20 kt. Seas 3 ft.

$$

PKZ170-311230-
Cape Sarichef to Nikolski Bering Side-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 20 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 5 ft.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 3 ft.
.WED THROUGH THU...W wind 15 kt. Seas 4 ft.
.FRI...W wind 20 kt. Seas 4 ft.

$$

PKZ171-311230-
Unalaska Bay-
355 PM AKDT Sun May 30 2021

.TONIGHT...Variable wind less than 10 kt becoming N wind 10 kt after
midnight. Seas 3 ft.
.MON...NW wind 10 kt. Seas 3 ft. Rain.
.MON NIGHT...NW wind 10 kt increasing to 15 kt after midnight.
Seas 3 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 2 ft.
.WED THROUGH THU...W wind 10 kt. Seas 2 ft.
.FRI...W wind 15 kt. Seas 2 ft.

$$

PKZ172-311230-
Cape Sarichef to Nikolski Pacific Side-
355 PM AKDT Sun May 30 2021

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

.TONIGHT...N wind 20 kt increasing to 30 kt after midnight. Seas 10 
ft.
.MON...N wind 30 kt. Seas 11 ft.
.MON NIGHT...NW wind 20 kt. Seas 9 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 6 ft.
.WED...SW wind 15 kt. Seas 5 ft.
.THU...W wind 15 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 7 ft.

$$

PKZ173-311230-
Nikolski to Seguam Island Bering Side-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...N wind 15 kt. Seas 5 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE...Variable wind 10 kt. Seas 3 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 3 ft.
.WED...Variable wind 10 kt. Seas 3 ft.
.THU...W wind 15 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 6 ft.

$$

PKZ174-311230-
Nikolski to Seguam Island Pacific Side-
355 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 25 kt. Seas 7 ft.
.MON NIGHT...NW wind 20 kt. Seas 7 ft.
.TUE AND TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...SW wind 15 kt. Seas 5 ft.
.THU...W wind 15 kt. Seas 8 ft.
.FRI...W wind 20 kt. Seas 8 ft.

$$

PKZ175-311230-
Seguam Island to Adak Bering Side-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...W wind 10 kt. Seas 4 ft.
.TUE AND TUE NIGHT...Variable wind 10 kt. Seas 3 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...W wind 20 kt. Seas 6 ft.

$$

PKZ176-311230-
Seguam Island to Adak Pacific Side-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 20 kt. Seas 6 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...W wind 10 kt. Seas 5 ft.
.TUE AND TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED THROUGH FRI...W wind 15 kt. Seas 6 ft.

$$

PKZ177-311230-
Adak to Kiska-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 15 kt. Seas 6 ft.
.MON...NW wind 15 kt. Seas 5 ft.
.MON NIGHT...NW wind 15 kt. Seas 4 ft.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 6 ft.

$$

PKZ178-311230-
Kiska to Attu-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 10 kt. Seas 6 ft.
.MON...N wind 15 kt. Seas 5 ft.
.MON NIGHT...N wind 15 kt. Seas 4 ft.
.TUE AND TUE NIGHT...N wind 15 kt. Seas 5 ft.
.WED...NW wind 20 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 6 ft.
.FRI...SW wind 20 kt. Seas 7 ft.

$$

PKZ179-311230-
Pribilof Islands Near Shore Waters-
355 PM AKDT Sun May 30 2021

.TONIGHT...N wind 20 kt. Seas 5 ft.
.MON THROUGH MON NIGHT...NE wind 10 kt. Seas 3 ft.
.TUE...N wind 15 kt. Seas 3 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...W wind 15 kt. Seas 4 ft.

$$

PKZ180-311230-
Kuskokwim Delta and Etolin Strait-
355 PM AKDT Sun May 30 2021

.TONIGHT...E wind 15 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 3 ft.
.TUE...NE wind 15 kt. Seas 3 ft.
.TUE NIGHT...SE wind 15 kt. Seas 3 ft.
.WED...SE wind 15 kt. Seas 2 ft.
.THU...N wind 15 kt. Seas 2 ft.
.FRI...W wind 15 kt. Seas 3 ft.

$$

PKZ181-311230-
North and West of Nunivak Island-
355 PM AKDT Sun May 30 2021

.TONIGHT...NE wind 15 kt. Seas 4 ft.
.MON...E wind 15 kt. Seas 3 ft.
.MON NIGHT...N wind 20 kt. Seas 4 ft.
.TUE...N wind 20 kt. Seas 4 ft.
.TUE NIGHT...N wind 25 kt. Seas 5 ft.
.WED THROUGH THU...NW wind 20 kt. Seas 6 ft.
.FRI...W wind 15 kt. Seas 3 ft.

$$

PKZ185-311230-
Saint Matthew Island Waters-
355 PM AKDT Sun May 30 2021

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E of Saint Matthew Island, E wind 25 kt becoming NE 15
kt after midnight. W of Saint Matthew Island, N wind 25 kt. Seas 6 
ft.
.MON...NE wind 20 kt. Seas 6 ft.
.MON NIGHT...NE wind 20 kt. Seas 5 ft.
.TUE...N wind 20 kt. Seas 5 ft.
.TUE NIGHT...NE wind 25 kt. Seas 6 ft.
.WED...N wind 25 kt. Seas 7 ft.
.THU...NW wind 20 kt. Seas 5 ft.
.FRI...SW wind 15 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
430 PM AKDT Sat May 29 2021

.ANALYSIS AND UPPER LEVELS...

Two upper level lows continue to drive the weather across the
southern portion of the state. One upper level low in place over
the Kuskokwim Delta continues to track southwestward into the
Bering, allowing for persistent gusty northeasterly winds across
Southwest. Meanwhile a second low is centered south of the Alaska
Peninsula while the associated front extends across the Gulf. This
has allowed for enhanced southerly flow over the northern Gulf,
bringing streams of moisture inland across Southcentral and
generating widespread precipitation. Farther west, rain along
this front is also lifting inland over the Alaska Peninsula and
Bristol Bay area.

&&

.MODEL DISCUSSION...

Model solutions remain in good agreement through the short-term. A
continued challenge will be the timing of several upper level
waves lifting inland over Southcentral. Still expecting the
strongest winds along the North Gulf Coast during the overnight
hours, and the GFS solution still advertises the strongest
easterly winds. The timing of these winds will largely impact when
downsloping begins to occur. By early next week, there is some
disagreement with regard to the location of the phased low
centered south of the Alaska Peninsula.

&&

.AVIATION...

PANC...MVFR conditions will persist with occasional IFR ceilings
this afternoon during periods of heavier rain. Precipitation will
gradually taper off this evening through Sunday morning. Gusty
southeasterly winds are expected along Turnagain Arm, but should
remain light over the terminal, resulting in wind shear concerns
into Sunday morning. Drier conditions are expected for Sunday.

&&

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

The wet pattern will continue for much of Southcentral. Yesterday
a record daily rainfall of .28 inches was set at Ted Stevens Int'l
Airport. And overnight the snow level dropped in the Chugach
Mountains as an upper low from the north moved into the region
bringing dynamic cooling. As the forecast period elapses,
downslope flow may develop which would help dry out Anchorage. The
lion's share of the moisture this holiday weekend will go to
Prince William Sound and Seward. By Monday another low will be
entering the western Gulf. So cool and cloudy conditions will
persist. Very confident that Anchorage will be below normal for
temperatures this forecast period.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Tonight
through Mon night)...

High pressure over eastern Russia/Arctic and low pressure south of
the Aleutian Islands in the North Pacific will continue the tight
pressure gradient across the Kuskokwim Delta tonight. As a
result, expect windy conditions with gusts as high as 45 mph to
continue for places such as Hooper Bay, Kipnuk, and Toksook Bay
into the evening with winds diminishing overnight. There is also a
fire burning near Scammon Bay which is causing smoke and haze
around the Hooper Bay to Toksook Bay to Nunivak Island area. This
is expected to continue through the overnight into Sunday
morning.

Next, a pattern change is ongoing across Southwest with increasing
clouds and moisture as a frontal system moves into the area from
the southeast. This will continue to bring a steady rain
especially to coastal Bristol Bay with more in the way of showers
inland (interior Bristol Bay and Middle Kuskokwim Valley including
Sleetmute, Crooked Creek, and Aniak) tonight through Sunday
morning. Further west, only very minimal moisture is expected to
make it over the Kuskokwim mountains leading to at most sprinkles
or a light brief shower in and around Bethel. A very strong and
potent upper level low will continue moving from east to west
tonight that may bring a better chance of rain showers near
Hooper Bay through Sunday morning before moving out over the
Bering. There may be a lull in the activity Sunday night through
Monday night across most of Southwest before the next frontal
system moves into the region bringing another round of showers.
Any lingering showers Sunday night through Monday night will
remain mostly on the higher terrain but can't rule out a light
shower making it to the valley locations especially Kuskokwim
Mountains on east. Temperatures will mostly be in the 40s and 50s
for highs Sunday with warmer temperatures Monday with 50s and 60s
with perhaps even 70 degrees around Sleetmute before cooling off
some again on Monday. Overnight lows will mostly be in the 30s and
40s area-wide.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3:
Tonight through Mon night)...

North to northeasterly flow over the Bering will continue tonight
keeping much of the Bering under mostly clear skies. The Pribilof
Islands will continue to experience gorgeous weather except for
the windy conditions through Sunday afternoon. After that, clouds
will start to increase across the area. Windy conditions will
also continue through tonight and Sunday morning before starting
to diminish Sunday afternoon and evening. Next, a very potent and
tight upper level low will emerge over the Bering from Southwest
overnight into Sunday morning that will bring increasing clouds to
much of the Bering and the Pribilof Islands throughout the day
Sunday. This will mark what will be the beginning of a cloudier,
cooler, and showery pattern for the Pribilofs Sunday evening
through Monday night.

Another upper level low will continue to spin over the North
Pacific through Monday night continuing to bring rounds of
unsettled weather to the eastern Aleutian Islands and southern Alaska
Peninsula.

&&

.MARINE (Days 3 through 5: Tuesday through Thursday)

A weak low across the southern Bering brings gusty northeasterly
winds along the northern side of the low through Thursday. A low
in the North Pacific moves over Kodiak Island by Thursday. Gusty
winds along the east side of the low will diminish through
Thursday. A front moves to the North Gulf Coast late Tuesday. A
barrier jet ahead of the front produces gusty easterly winds along
the coast and dissipates by late Tuesday.

&&

.LONG TERM (Days 4 through 7: Wednesday through Saturday)...

Upper level pattern consists of a broad trough extending across
Western Alaska and across the Bering Sea. A low positioned just
offshore of northwestern Alaska on Wed, pushes southwest across
the Bering Strait and into the Bering Sea through the end of the
week, weakening as it moves. This will allow the onshore flow
pattern to persist across Southwest Alaska into the weekend. Wet
and cloudy conditions are probable across much of the region with
this flow pattern.

A pair of lows, one south of the Aleutian Chain and one south of
Kodiak Island, phase together on Wednesday and the associated
front moves across the Southern Gulf through the end of the week.
As the front moves, expect persistent rain showers along the
coastal regions of Southcentral as well as along the Alaska
Peninsula and Eastern Aleutians. Southerly flow will help carry
energy further inland into Southcentral, allowing showery
conditions to spill into the Susitna Valley and Copper River Basin
mid- to late- week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Storm: 119.
Gale: 125 181.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...KO
SOUTHCENTRAL ALASKA...PJS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MV
MARINE/LONG TERM...KZ/KM