Gale Warning 376, NWS Anchorage, AK

238 
FZAK52 PAFC 271201
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
401 AM AKDT Wed May 27 2020

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.

PKZ199-280045-
401 AM AKDT Wed May 27 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A strengthening frontal boundary in the western Aleutians Wed
morning moves into the central Bering and Aleutians by Wed
afternoon and remains there through Fri morning.

$$

PKZ150-280045-
South of the AK Peninsula Sitkinak to Castle Cape-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...NE wind 20 kt. Seas 4 ft.
.TONIGHT...N wind 20 kt. Seas 9 ft.
.THU...NW wind 25 kt. Seas 9 ft.
.THU NIGHT...NW wind 25 kt. Seas 9 ft.
.FRI...NW wind 15 kt. Seas 7 ft.
.SAT...Variable wind 10 kt. Seas 7 ft.
.SUN...SE wind 20 kt. Seas 8 ft.

$$

PKZ155-280045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...Variable wind 10 kt except NE 15 kt from the Shumagin
Islands E. Seas 3 ft.
.TONIGHT...Variable wind 10 kt. Seas 4 ft building to 8 ft after
midnight.
.THU...NW wind 15 kt. Seas 8 ft.
.THU NIGHT...W wind 20 kt. Seas 7 ft.
.FRI...SW wind 25 kt. Seas 9 ft.
.SAT THROUGH SUN...E wind 30 kt. Seas 11 ft.

$$

PKZ160-280045-
Bristol Bay-
401 AM AKDT Wed May 27 2020

.TODAY...SE wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.TONIGHT...NW wind 10 kt increasing to 15 kt after midnight. Seas
2 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.THU NIGHT...NW wind 20 kt. Seas 4 ft.
.FRI...W wind 15 kt. Seas 3 ft.
.SAT...W wind 10 kt. Seas 2 ft.
.SUN...SE wind 20 kt. Seas 3 ft.

$$

PKZ165-280045-
Port Heiden to Cape Sarichef-
401 AM AKDT Wed May 27 2020

.TODAY...Variable wind 10 kt. Seas 2 ft.
.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.THU...Variable wind 10 kt except NW 15 kt from Port Moller E.
Seas 2 ft.
.THU NIGHT...N wind 15 kt. Seas 3 ft.
.FRI...NE wind 20 kt. Seas 4 ft.
.SAT...SE wind 25 kt. Seas 4 ft.
.SUN...E wind 20 kt. Seas 4 ft.

$$

PKZ170-280045-
Cape Sarichef to Nikolski Bering Side-
401 AM AKDT Wed May 27 2020

.TODAY...S wind 15 kt. Seas 3 ft.
.TONIGHT...S wind 20 kt. Seas 4 ft.
.THU...SE wind 20 kt. Seas 4 ft.
.THU NIGHT...SE wind 25 kt. Seas 5 ft.
.FRI THROUGH SAT...SE wind 30 kt. Seas 8 ft.
.SUN...NE wind 30 kt. Seas 8 ft.

$$

PKZ171-280045-
Unalaska Bay-
401 AM AKDT Wed May 27 2020

.TODAY...Variable wind less than 10 kt. Seas 2 ft.
.TONIGHT...SE wind 10 kt. Seas 2 ft.
.THU...S wind 10 kt. Seas 1 foot.
.THU NIGHT...SE wind 15 kt. Seas 2 ft.
.FRI THROUGH SAT...SE wind 25 kt. Seas 4 ft.
.SUN...E wind 30 kt. Seas 4 ft.

$$

PKZ172-280045-
Cape Sarichef to Nikolski Pacific Side-
401 AM AKDT Wed May 27 2020

.TODAY...Variable wind 10 kt. Seas 3 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.THU...S wind 15 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 8 ft.
.FRI THROUGH SAT...SE wind 30 kt. Seas 15 ft.
.SUN...E wind 30 kt. Seas 13 ft.

$$

PKZ173-280045-
Nikolski to Seguam Island Bering Side-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...S wind 20 kt. Seas 5 ft.
.TONIGHT...SE wind 25 kt. Seas 7 ft.
.THU...SE wind 25 kt. Seas 7 ft.
.THU NIGHT...SE wind 30 kt. Seas 12 ft.
.FRI...SE wind 35 kt. Seas 14 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SUN...NE wind 25 kt. Seas 8 ft.

$$

PKZ174-280045-
Nikolski to Seguam Island Pacific Side-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY...

.TODAY...S wind 20 kt. Seas 5 ft.
.TONIGHT...S wind 25 kt. Seas 7 ft.
.THU...SE wind 25 kt. Seas 8 ft.
.THU NIGHT...SE wind 30 kt. Seas 14 ft.
.FRI...SE wind 35 kt. Seas 18 ft.
.SAT...SE wind 25 kt. Seas 10 ft.
.SUN...NE wind 20 kt. Seas 9 ft.

$$

PKZ175-280045-
Seguam Island to Adak Bering Side-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 7 ft.
.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain.
.THU...SE wind 30 kt. Seas 8 ft.
.THU NIGHT...SE wind 35 kt. Seas 12 ft.
.FRI...SE wind 30 kt. Seas 12 ft.
.SAT...E wind 15 kt. Seas 6 ft.
.SUN...N wind 15 kt. Seas 6 ft.

$$

PKZ176-280045-
Seguam Island to Adak Pacific Side-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 30 kt. Seas 9 ft.
.TONIGHT...S wind 30 kt. Seas 11 ft. Rain.
.THU...SE wind 30 kt. Seas 12 ft.
.THU NIGHT...SE wind 35 kt. Seas 16 ft.
.FRI...S wind 30 kt. Seas 17 ft.
.SAT...E wind 15 kt. Seas 8 ft.
.SUN...N wind 15 kt. Seas 8 ft.

$$

PKZ177-280045-
Adak to Kiska-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 11 ft. Rain.
.THU...SE wind 30 kt. Seas 11 ft. Rain.
.THU NIGHT...S wind 30 kt. Seas 11 ft.
.FRI...Variable wind 10 kt. Seas 9 ft.
.SAT...N wind 20 kt. Seas 8 ft.
.SUN...NW wind 20 kt. Seas 7 ft.

$$

PKZ178-280045-
Kiska to Attu-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...S wind 25 kt. Seas 9 ft. Rain.
.TONIGHT...SW wind 20 kt. Seas 8 ft.
.THU...SW wind 20 kt in the morning becoming variable 10 kt. Seas
7 ft.
.THU NIGHT...N wind 15 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 8 ft.
.SAT THROUGH SUN...NW wind 20 kt. Seas 7 ft.

$$

PKZ179-280045-
Pribilof Islands Near Shore Waters-
401 AM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SE wind 15 kt. Seas 3 ft.
.TONIGHT...SE wind 20 kt. Seas 5 ft.
.THU...SE wind 25 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 7 ft.
.FRI THROUGH SAT...E wind 30 kt. Seas 11 ft.
.SUN...NE wind 20 kt. Seas 6 ft.

$$

PKZ180-280045-
Kuskokwim Delta and Etolin Strait-
401 AM AKDT Wed May 27 2020

.TODAY...SE wind 10 kt. Seas 3 ft.
.TONIGHT...SW wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.THU NIGHT...NW wind 20 kt. Seas 4 ft.
.FRI...NW wind 15 kt. Seas 4 ft.
.SAT...SE wind 15 kt. Seas 3 ft.
.SUN...NE wind 20 kt. Seas 4 ft.

$$

PKZ181-280045-
North and West of Nunivak Island-
401 AM AKDT Wed May 27 2020

.TODAY...S wind 15 kt. Seas 3 ft.
.TONIGHT...SE wind 15 kt. Seas 2 ft.
.THU...SE wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 15 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 5 ft.
.SAT...E wind 20 kt. Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft.

$$

PKZ185-280045-
Saint Matthew Island Waters-
401 AM AKDT Wed May 27 2020

...GALE WARNING TONIGHT...

.TODAY...E of Saint Matthew Island, S wind 15 kt. W of Saint
Matthew Island, S wind 15 kt becoming SE 25 kt in the afternoon. 
Seas 4 ft.
.TONIGHT...SE wind 25 kt E of Saint Matthew Island... SE 35 kt W
of Saint Matthew Island. Seas 7 ft building to 11 ft after midnight.
Rain.
.THU...SE wind 30 kt. Seas 13 ft.
.THU NIGHT...SE wind 25 kt. Seas 12 ft.
.FRI...E wind 30 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 10 ft.
.SUN...NE wind 20 kt. Seas 7 ft.

$$

116 
FZAK52 PAFC 272304
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
304 PM AKDT Wed May 27 2020

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.

PKZ199-281230-
304 PM AKDT Wed May 27 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...
A 990 mb low 150 nm northwest of Attu moves to the north Kamchatka 
coast at 1003 mb by Fri afternoon. Its front slides across the 
western Bering into the central Aleutians Fri afternoon. A 1000 mb 
North Pacific low moves along the front to 310 nm north of Kiska at 
997 mb by Fri afternoon.

$$

PKZ150-281230-
South of the AK Peninsula Sitkinak to Castle Cape-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 10 ft.
.THU...NW wind 25 kt. Seas 9 ft.
.THU NIGHT...NW wind 25 kt. Seas 9 ft.
.FRI AND FRI NIGHT...W wind 15 kt. Seas 6 ft.
.SAT...Variable wind 10 kt. Seas 7 ft.
.SUN THROUGH MON...E wind 20 kt. Seas 9 ft.

$$

PKZ155-281230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 4 ft building to 8 ft after midnight.
.THU...NW wind 15 kt. Seas 8 ft.
.THU NIGHT...W wind 20 kt. Seas 8 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.FRI NIGHT...SW wind 20 kt. Seas 9 ft.
.SAT THROUGH SUN...E wind 30 kt. Seas 11 ft.
.MON...E wind 20 kt. Seas 10 ft.

$$

PKZ160-281230-
Bristol Bay-
304 PM AKDT Wed May 27 2020

.TONIGHT...NW wind 10 kt increasing to 15 kt after midnight. Seas 2 ft.
.THU...NW wind 20 kt. Seas 3 ft.
.THU NIGHT...NW wind 20 kt. Seas 3 ft.
.FRI...W wind 15 kt. Seas 2 ft.
.FRI NIGHT...W wind 10 kt. Seas 2 ft.
.SAT...W wind 10 kt. Seas 1 foot.
.SUN THROUGH MON...E wind 20 kt. Seas 3 ft.

$$

PKZ165-281230-
Port Heiden to Cape Sarichef-
304 PM AKDT Wed May 27 2020

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.THU...Variable wind 10 kt except NW 15 kt from Port Moller E. Seas 2 ft.
.THU NIGHT...N wind 15 kt. Seas 3 ft.
.FRI...N wind 15 kt. Seas 3 ft.
.FRI NIGHT...E wind 20 kt. Seas 3 ft.
.SAT...SE wind 25 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 4 ft.

$$

PKZ170-281230-
Cape Sarichef to Nikolski Bering Side-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 4 ft.
.THU...SE wind 20 kt. Seas 4 ft.
.THU NIGHT...SE wind 25 kt. Seas 5 ft.
.FRI AND FRI NIGHT...SE wind 30 kt. Seas 8 ft.
.SAT...SE wind 30 kt. Seas 7 ft.
.SUN...NE wind 30 kt. Seas 8 ft.
.MON...N wind 15 kt. Seas 5 ft.

$$

PKZ171-281230-
Unalaska Bay-
304 PM AKDT Wed May 27 2020

.TONIGHT...Variable wind less than 10 kt becoming S 10 kt after midnight.
Seas 2 ft.
.THU...S wind 10 kt. Seas 2 ft.
.THU NIGHT...SE wind 10 kt. Seas 2 ft.
.FRI...SE wind 20 kt. Seas 3 ft.
.FRI NIGHT...SE wind 25 kt. Seas 4 ft.
.SAT...SE wind 25 kt. Seas 4 ft.
.SUN...E wind 30 kt. Seas 4 ft.
.MON...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ172-281230-
Cape Sarichef to Nikolski Pacific Side-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 4 ft.
.THU...S wind 15 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 8 ft.
.FRI AND FRI NIGHT...SE wind 30 kt. Seas 14 ft.
.SAT...SE wind 30 kt. Seas 12 ft.
.SUN...E wind 30 kt. Seas 13 ft.
.MON...N wind 15 kt. Seas 10 ft.

$$

PKZ173-281230-
Nikolski to Seguam Island Bering Side-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 8 ft.
.THU...SE wind 25 kt. Seas 8 ft.
.THU NIGHT...SE wind 30 kt. Seas 12 ft.
.FRI AND FRI NIGHT...SE wind 30 kt. Seas 13 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SUN...NE wind 25 kt. Seas 8 ft.
.MON...N wind 15 kt. Seas 6 ft.

$$

PKZ174-281230-
Nikolski to Seguam Island Pacific Side-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 7 ft.
.THU...SE wind 25 kt. Seas 9 ft.
.THU NIGHT...SE wind 30 kt. Seas 15 ft. Rain.
.FRI...SE wind 35 kt. Seas 17 ft.
.FRI NIGHT...S wind 30 kt. Seas 16 ft.
.SAT...SE wind 25 kt. Seas 10 ft.
.SUN...NE wind 20 kt. Seas 9 ft.
.MON...NW wind 15 kt. Seas 9 ft.

$$

PKZ175-281230-
Seguam Island to Adak Bering Side-
304 PM AKDT Wed May 27 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain.
.THU...SE wind 30 kt. Seas 8 ft.
.THU NIGHT...SE wind 35 kt. Seas 12 ft. Rain.
.FRI...SE wind 30 kt. Seas 13 ft.
.FRI NIGHT...S wind 15 kt. Seas 9 ft.
.SAT...E wind 20 kt. Seas 5 ft.
.SUN...N wind 15 kt. Seas 6 ft.
.MON...NW wind 15 kt. Seas 5 ft.

$$

PKZ176-281230-
Seguam Island to Adak Pacific Side-
304 PM AKDT Wed May 27 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 11 ft. Rain.
.THU...SE wind 30 kt. Seas 12 ft.
.THU NIGHT...SE wind 35 kt. Seas 17 ft. Rain.
.FRI...SE wind 30 kt. Seas 17 ft.
.FRI NIGHT...S wind 15 kt. Seas 11 ft.
.SAT...E wind 15 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 15 kt. Seas 8 ft.

$$

PKZ177-281230-
Adak to Kiska-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 11 ft. Rain.
.THU...SE wind 30 kt. Seas 11 ft. Rain.
.THU NIGHT...SE wind 30 kt. Seas 11 ft.
.FRI...Variable wind 10 kt. Seas 9 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 9 ft.
.SAT...N wind 20 kt. Seas 7 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.

$$

PKZ178-281230-
Kiska to Attu-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 8 ft.
.THU...SW wind 20 kt in the morning becoming variable 10 kt. Seas 7 ft.
.THU NIGHT...N wind 15 kt. Seas 8 ft.
.FRI AND FRI NIGHT...NE wind 15 kt. Seas 8 ft.
.SAT THROUGH MON...NW wind 20 kt. Seas 7 ft.

$$

PKZ179-281230-
Pribilof Islands Near Shore Waters-
304 PM AKDT Wed May 27 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TONIGHT...SE wind 20 kt. Seas 5 ft.
.THU...SE wind 25 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 7 ft.
.FRI...SE wind 25 kt. Seas 8 ft.
.FRI NIGHT...E wind 30 kt. Seas 10 ft.
.SAT...E wind 30 kt. Seas 10 ft.
.SUN...NE wind 20 kt. Seas 6 ft.
.MON...NE wind 15 kt. Seas 6 ft.

$$

PKZ180-281230-
Kuskokwim Delta and Etolin Strait-
304 PM AKDT Wed May 27 2020

.TONIGHT...SW wind 10 kt. Seas 2 ft.
.THU...NW wind 15 kt. Seas 2 ft.
.THU NIGHT...NW wind 20 kt. Seas 4 ft.
.FRI...N wind 15 kt. Seas 4 ft.
.FRI NIGHT...W wind 10 kt. Seas 4 ft.
.SAT...SE wind 15 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 4 ft.

$$

PKZ181-281230-
North and West of Nunivak Island-
304 PM AKDT Wed May 27 2020

.TONIGHT...SE wind 15 kt. Seas 3 ft.
.THU...SE wind 20 kt. Seas 4 ft.
.THU NIGHT...SE wind 15 kt. Seas 5 ft.
.FRI...NE wind 20 kt. Seas 5 ft.
.FRI NIGHT...NE wind 25 kt. Seas 5 ft.
.SAT...E wind 20 kt. Seas 6 ft.
.SUN...N wind 20 kt. Seas 4 ft.
.MON...NW wind 15 kt. Seas 4 ft.

$$

PKZ185-281230-
Saint Matthew Island Waters-
304 PM AKDT Wed May 27 2020

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 25 kt E of Saint Matthew Island... SE 35 kt W of 
Saint Matthew Island. Seas 7 ft building to 11 ft after midnight. Rain.
.THU...SE wind 30 kt. Seas 13 ft.
.THU NIGHT...SE wind 25 kt. Seas 12 ft.
.FRI AND FRI NIGHT...E wind 30 kt. Seas 13 ft.
.SAT...E wind 25 kt. Seas 12 ft.
.SUN THROUGH MON...N wind 20 kt. Seas 6 ft.

$$

833 
FZAK52 PAFC 281200
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
400 AM AKDT Thu May 28 2020

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.

PKZ199-290045-
400 AM AKDT Thu May 28 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A gale force front in the Central Bering and Aleutians moves into
the eastern Aleutians by Fri morning then begins weakening Fri 
afternoon.

$$

PKZ150-290045-
South of the AK Peninsula Sitkinak to Castle Cape-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 9 ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.FRI NIGHT...NW wind 15 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 6 ft.
.SUN THROUGH MON...E wind 20 kt. Seas 10 ft.

$$

PKZ155-290045-
South of the AK Peninsula Castle Cape to Cape Sarichef-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 15 kt. Seas 8 ft.
.TONIGHT...W wind 20 kt. Seas 8 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.FRI NIGHT...SW wind 20 kt. Seas 7 ft.
.SAT...SE wind 30 kt. Seas 12 ft.
.SUN...E wind 30 kt. Seas 13 ft.
.MON...NE wind 20 kt. Seas 12 ft.

$$

PKZ160-290045-
Bristol Bay-
400 AM AKDT Thu May 28 2020

.TODAY...NW wind 20 kt. Seas 3 ft.
.TONIGHT...NW wind 20 kt. Seas 3 ft.
.FRI...NW wind 20 kt. Seas 2 ft.
.FRI NIGHT...W wind 15 kt. Seas 3 ft.
.SAT...SW wind 10 kt. Seas 2 ft.
.SUN THROUGH MON...E wind 15 kt. Seas 2 ft.

$$

PKZ165-290045-
Port Heiden to Cape Sarichef-
400 AM AKDT Thu May 28 2020

.TODAY...Variable wind 10 kt except NW 15 kt from Port Moller E.
Seas 2 ft.
.TONIGHT...N wind 15 kt. Seas 3 ft.
.FRI...N wind 15 kt. Seas 3 ft.
.FRI NIGHT...SE wind 15 kt. Seas 2 ft.
.SAT THROUGH SUN...E wind 25 kt. Seas 6 ft.
.MON...NE wind 20 kt. Seas 4 ft.

$$

PKZ170-290045-
Cape Sarichef to Nikolski Bering Side-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...SE wind 20 kt. Seas 4 ft.
.TONIGHT...SE wind 25 kt. Seas 5 ft.
.FRI...SE wind 30 kt. Seas 7 ft.
.FRI NIGHT...SE wind 30 kt. Seas 7 ft.
.SAT...E wind 30 kt. Seas 8 ft.
.SUN...NE wind 30 kt. Seas 10 ft.
.MON...N wind 20 kt. Seas 7 ft.

$$

PKZ171-290045-
Unalaska Bay-
400 AM AKDT Thu May 28 2020

.TODAY...S wind 10 kt. Seas 2 ft.
.TONIGHT...SE wind 10 kt. Seas 2 ft.
.FRI...SE wind 20 kt. Seas 3 ft.
.FRI NIGHT...SE wind 25 kt. Seas 3 ft.
.SAT...SE wind 25 kt. Seas 4 ft.
.SUN...E wind 25 kt. Seas 5 ft.
.MON...N wind 10 kt. Seas 3 ft.

$$

PKZ172-290045-
Cape Sarichef to Nikolski Pacific Side-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...S wind 15 kt. Seas 7 ft.
.TONIGHT...SE wind 20 kt. Seas 8 ft.
.FRI...SE wind 30 kt. Seas 13 ft.
.FRI NIGHT...SE wind 30 kt. Seas 15 ft.
.SAT THROUGH SUN...E wind 30 kt. Seas 13 ft.
.MON...N wind 20 kt. Seas 12 ft.

$$

PKZ173-290045-
Nikolski to Seguam Island Bering Side-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 25 kt. Seas 8 ft.
.TONIGHT...SE wind 30 kt. Seas 12 ft.
.FRI...SE wind 30 kt. Seas 14 ft. Rain.
.FRI NIGHT...SE wind 30 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...NE wind 25 kt. Seas 10 ft.
.MON...NW wind 20 kt. Seas 9 ft.

$$

PKZ174-290045-
Nikolski to Seguam Island Pacific Side-
400 AM AKDT Thu May 28 2020

...GALE WARNING FRIDAY...

.TODAY...SE wind 25 kt. Seas 9 ft.
.TONIGHT...SE wind 30 kt. Seas 15 ft. Rain.
.FRI...SE wind 35 kt. Seas 17 ft. Rain.
.FRI NIGHT...S wind 25 kt. Seas 15 ft.
.SAT...E wind 25 kt. Seas 11 ft.
.SUN...NE wind 25 kt. Seas 11 ft.
.MON...NW wind 20 kt. Seas 11 ft.

$$

PKZ175-290045-
Seguam Island to Adak Bering Side-
400 AM AKDT Thu May 28 2020

...GALE WARNING TONIGHT...

.TODAY...SE wind 30 kt. Seas 8 ft.
.TONIGHT...SE wind 35 kt. Seas 12 ft. Rain.
.FRI...SE wind 30 kt. Seas 13 ft.
.FRI NIGHT...S wind 15 kt. Seas 8 ft.
.SAT...E wind 25 kt. Seas 7 ft.
.SUN...N wind 25 kt. Seas 9 ft.
.MON...NW wind 15 kt. Seas 8 ft.

$$

PKZ176-290045-
Seguam Island to Adak Pacific Side-
400 AM AKDT Thu May 28 2020

...GALE WARNING TONIGHT...

.TODAY...SE wind 30 kt. Seas 12 ft.
.TONIGHT...SE wind 35 kt. Seas 17 ft. Rain.
.FRI...SE wind 30 kt becoming S 20 kt in the afternoon. Seas 17
ft.
.FRI NIGHT...Variable wind 10 kt. Seas 11 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 20 kt. Seas 9 ft.

$$

PKZ177-290045-
Adak to Kiska-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 11 ft.
.FRI...Variable wind 10 kt. Seas 9 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 8 ft.
.SAT...N wind 20 kt. Seas 8 ft.
.SUN...NW wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 6 ft.

$$

PKZ178-290045-
Kiska to Attu-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...SW wind 20 kt in the morning becoming variable 10 kt.
Seas 7 ft.
.TONIGHT...N wind 15 kt. Seas 8 ft.
.FRI...N wind 15 kt. Seas 8 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 7 ft.
.SAT THROUGH SUN...NW wind 20 kt. Seas 7 ft.
.MON...NW wind 15 kt. Seas 5 ft.

$$

PKZ179-290045-
Pribilof Islands Near Shore Waters-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY TODAY AND FRIDAY...

.TODAY...SE wind 25 kt. Seas 7 ft.
.TONIGHT...SE wind 20 kt. Seas 7 ft.
.FRI...SE wind 25 kt. Seas 8 ft.
.FRI NIGHT...SE wind 25 kt. Seas 9 ft.
.SAT...E wind 25 kt. Seas 9 ft.
.SUN...NE wind 25 kt. Seas 7 ft.
.MON...N wind 15 kt. Seas 5 ft.

$$

PKZ180-290045-
Kuskokwim Delta and Etolin Strait-
400 AM AKDT Thu May 28 2020

.TODAY...NW wind 15 kt. Seas 2 ft.
.TONIGHT...NW wind 20 kt. Seas 4 ft.
.FRI...N wind 15 kt becoming NW in the afternoon. Seas 4 ft.
.FRI NIGHT...W wind 10 kt. Seas 3 ft.
.SAT...S wind 10 kt. Seas 3 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 3 ft.

$$

PKZ181-290045-
North and West of Nunivak Island-
400 AM AKDT Thu May 28 2020

.TODAY...SE wind 20 kt. Seas 4 ft.
.TONIGHT...SE wind 15 kt. Seas 5 ft.
.FRI...NE wind 15 kt. Seas 5 ft.
.FRI NIGHT...NE wind 20 kt. Seas 4 ft.
.SAT...NE wind 20 kt. Seas 4 ft.
.SUN...N wind 15 kt. Seas 4 ft.
.MON...SW wind 15 kt. Seas 3 ft.

$$

PKZ185-290045-
Saint Matthew Island Waters-
400 AM AKDT Thu May 28 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 30 kt. Seas 13 ft.
.TONIGHT...SE wind 25 kt. Seas 12 ft.
.FRI...SE wind 20 kt E of Saint Matthew Island... SE 30 kt W of
Saint Matthew Island. Seas 11 ft.
.FRI NIGHT...E wind 30 kt. Seas 12 ft.
.SAT...E wind 25 kt. Seas 11 ft.
.SUN THROUGH MON...N wind 15 kt. Seas 5 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
501 AM AKDT Tue May 26 2020

.ANALYSIS AND UPPER LEVELS...

The easterly wave passing through the south side of the upper
level high sitting over northern Alaska has brought some
widespread rain to the Copper River Basin & the Matsu Valley.
Gulkana recorded nearly three quarters of an inch in last 24
hours and widespread quarter inch totals in the Susitna Valley
were recorded. Temperatures at Eureka dropped to freezing and
snow was recorded there and likely elsewhere above 3500 ft.
Conditions along the southern coast are quiet with scattered rain
in Valdez, Seward, & Anchorage from the southern reaches of the
previously mentioned easterly wave. Southwest Alaska is seeing a
few scattered rain showers, as the upper low in the Bering pushes
a shortwave to the outer coastline of Bristol Bay. The broad
nature of the upper level trough in the Bering is keeping the
Aleutians in a quiet pattern this morning.

&&

.MODEL DISCUSSION...

06Z model runs seem to remain consistent with a blocking high
setting up across mainland Alaska from the Yukon border back to
the Alaska Peninsula. This high will be skirted by two lows that
are advertised much differently as the end of the week nears. In
the near-term, a pattern shift is in the works for southcentral
Alaska. Uncertainty will remain though, because of the blocking
high pressure and how much influence it exerts on the upper level
lows competing to shake up the pattern. The EC is holding on to
the block, while the GFS breaks it down.

&&

.AVIATION...
PANC...Mostly VFR conditions and light winds will persist.
However, expect scattered showers to remain near the terminal
through the evening. MVFR conditions possible due to ceilings
during rain showers.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3/Today
through Thursday night)...
The easterly wave that brought rain to much of Southcentral
yesterday and last night will exit to western Alaska this morning,
with rain diminishing in its wake. However, another short-wave
trough has entered the Gulf and is lifting northward toward
Southcentral Alaska. This trough, which is much larger and
broader in nature, will act upon the existing moist environment
and combine with weak instability to produce showers. Low level
southerly flow will favor showers training over the same areas,
from the western Kenai to Anchorage and the Mat-Su. Showers will
diminish tonight into Wednesday as this second trough exits to
the north.

A pattern change will then lead to much warmer and drier conditions
as we head through the remainder of the week. Wednesday will be a
transition day as a short-wave ridge builds overhead and weak low
level offshore flow develops in response to a large vertically
stacked low approaching the southern Gulf of Alaska. This will
help to clear out most of the clouds and begin to warm temperatures.

On Thursday, the short-wave ridge will merge with a larger and
stronger ridge near the ALCAN border and build over Southcentral.
Strengthening offshore flow between the ridge and the low making
some progress into the Gulf will lead to rapidly warming low
level temperatures, with 850mb temperatures warming by 6 to 8
degrees Celsius from Wednesday afternoon to Thursday afternoon.
The strength of the offshore flow will largely keep sea breezes
at bay. Thus, expect high temperatures across the entire region
to reach the 60s to lower 70s.

&&

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

The persistent low that has remained in place over the eastern
Bering will finally begin to lift northward and exit the Bering
to the north this afternoon. An upper level wave has the potential
to provide enough lift to produce showers and possibly isolated
thunderstorms this afternoon, especially along the foothills of
the Alaska Range. Isolated thunderstorm development is also
possible over the Kuskokwim Mountains this afternoon and early
evening. This trend is likely to continue for Wednesday with
daytime heating allowing for showers to form, especially over the
mountains. By Thursday, a shift in the pattern arrives as an
upper level ridge over the mainland attempts to extend westward.
This will bring offshore flow and a warming and drying trend
across much of Southwest. High temperatures could approach the
mid to upper 60s on Thursday, especially across interior parts of
Southwest, which will be a noticeable departure from the cooler
temperatures seen earlier this week.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...

A low centered north of the Pribilofs slowly exits the Bering to
the north this afternoon. Farther west, an inbound low spreads a
front across the western Aleutians today bringing gusty southerly
winds and rain. While the low center tracks west of the Bering,
the associated front will continue moving eastward through
Wednesday afternoon. An upper level ridge building over the
eastern Bering will prevent the front from advancing farther east,
stopping just short of the Pribilof Islands early Thursday.
However the gusty southerly winds will remain in place across much
of the central and western Bering through the end of the workweek.

&&

.MARINE (Days 3 through 5: Thursday through Saturday)...
Gulf of Alaska: A front wrapped around the north side of a low
may possibly produce gales from Thursday morning through midday
over the far southern Gulf's offshore areas. The low center will
move into the eastern Gulf through Saturday, but as it weakens,
the chance of gales will remain low. Confidence is average.

Bering Sea/Aleutians: Gales continue to be most likely Thursday
morning over the central Bering from Adak through to west of Saint
Matthew Island. The chances of those gales materializing in that
area have decreased since yesterday. Confidence quickly diminishes
as to whether a new round of gales will impact the southern
Bering and Eastern and Central Aleutians Friday into Saturday, as
model agreement on the track of a new North Pacific low that would
cause the gales is very low.

&&

.LONG TERM FORECAST (Days 4 through 7: Friday through Tuesday)...
The long-term forecast starts out with a stagnant weather pattern
in place. An upper level Rex Block of sorts starts out the long
term on Friday across mainland Alaska, with an upper level high
over the northern Yukon, with a stationary upper low over the
Gulf. A narrow area of ridging is over Southwest Alaska, with a
large trough over the far western Bering. An upper low associated
with the western Bering trough moves east to around the Central
Aleutians by Sunday. Whether or not that low gets close enough to
the still-stationary Gulf low to absorb it remains in question,
with more solutions than not suggesting that one does not absorb
it until early next week.

Either way this pattern will leave much of southern mainland
Alaska, especially Southcentral, on the wet side of things. This
is because pulses of energy circulating around the upper level
Gulf low will periodically swing east to west, or easterly waves
as we meteorologists call them, around the Gulf low and across
Southcentral. Since the waves will not be originating from
interior Canada, but rather from the Gulf, they will frequently
have lots of moisture associated with them. Thus, cool, cloudy,
and wet conditions, with potential for thunderstorms if any
prolonged clearing can occur in between waves, are expected. The
upcoming weekend may allow the Copper River Basin in particular to
end what had been a very dry May prior to last night well above
normal for total precipitation.

For Southwest Alaska, since the mountains of Southcentral will
wring out much of the moisture and the waves will be moving
towards the southwest, it's far more likely to be dry for much of
the long-term. Any stronger waves could still set off showers and
thunderstorms in the afternoons, depending on how much
instability and sunshine can develop earlier in the day. Sunday
afternoon appears to be the best chance of precipitation as of
now.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...NONE.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...LTB
SOUTHCENTRAL ALASKA...SB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KO
MARINE/LONG TERM...JW