Gale Warning 368, NWS Anchorage, AK

655 
FZAK52 PAFC 181117
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
317 AM AKDT Mon May 18 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.

PKZ199-190000-
317 AM AKDT Mon May 18 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 987 mb low 190 nm northeast of Adak this morning will dissipate
tonight. A 973 mb North Pacific low 200 nm south of Shemya 
Tuesday morning will move 70 nm east of Adak Wednesday morning.

$$

PKZ150-190000-
South of the AK Peninsula Sitkinak to Castle Cape-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SE wind 15 kt becoming W 25 kt in the afternoon. Seas 4 ft 
building to 8 ft in the afternoon. Rain.
.TONIGHT...W wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 11 ft.
.TUE NIGHT...W wind 20 kt. Seas 11 ft.
.WED...S wind 25 kt. Seas 13 ft.
.THU...S wind 20 kt. Seas 13 ft.
.FRI...S wind 15 kt. Seas 10 ft.

$$

PKZ155-190000-
South of the AK Peninsula Castle Cape to Cape Sarichef-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 20 kt. Seas 8 ft.
.TONIGHT...SW wind 25 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 13 ft.
.TUE NIGHT...SW wind 25 kt. Seas 12 ft.
.WED...S wind 30 kt. Seas 13 ft.
.THU THROUGH FRI...S wind 20 kt. Seas 12 ft.

$$

PKZ160-190000-
Bristol Bay-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...E wind 20 kt. Seas 3 ft. Rain.
.TONIGHT...W wind 20 kt. Seas 4 ft.
.TUE...W wind 25 kt. Seas 5 ft.
.TUE NIGHT...SW wind 15 kt. Seas 4 ft.
.WED...SE wind 25 kt. Seas 6 ft.
.THU...SE wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 4 ft.

$$

PKZ165-190000-
Port Heiden to Cape Sarichef-
317 AM AKDT Mon May 18 2020

.TODAY...S wind 15 kt. Seas 3 ft.
.TONIGHT...SW wind 20 kt. Seas 4 ft.
.TUE...SW wind 20 kt. Seas 7 ft.
.TUE NIGHT...S wind 25 kt. Seas 7 ft.
.WED...SE wind 30 kt. Seas 7 ft.
.THU THROUGH FRI...SE wind 20 kt. Seas 5 ft.

$$

PKZ170-190000-
Cape Sarichef to Nikolski Bering Side-
317 AM AKDT Mon May 18 2020

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

.TODAY...S wind 20 kt. Seas 6 ft.
.TONIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...S wind 30 kt. Seas 9 ft.
.TUE NIGHT...SE wind 30 kt. Seas 9 ft.
.WED...S wind 35 kt. Seas 10 ft.
.THU...S wind 25 kt. Seas 5 ft.
.FRI...SW wind 15 kt. Seas 5 ft.

$$

PKZ171-190000-
Unalaska Bay-
317 AM AKDT Mon May 18 2020

.TODAY...S wind 15 kt. Seas 1 foot.
.TONIGHT...W wind 15 kt. Seas 3 ft. Rain.
.TUE...S wind 20 kt. Seas 3 ft.
.TUE NIGHT...SE wind 25 kt. Seas 4 ft.
.WED...S wind 25 kt. Seas 4 ft.
.THU...S wind 15 kt. Seas 2 ft.
.FRI...SW wind 10 kt. Seas 2 ft.

$$

PKZ172-190000-
Cape Sarichef to Nikolski Pacific Side-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...SW wind 25 kt. Seas 11 ft.
.TONIGHT...SW wind 30 kt. Seas 15 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.TUE NIGHT...S wind 35 kt. Seas 15 ft.
.WED...S wind 30 kt. Seas 17 ft.
.THU...S wind 25 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 10 ft.

$$

PKZ173-190000-
Nikolski to Seguam Island Bering Side-
317 AM AKDT Mon May 18 2020

...GALE WARNING TUESDAY...

.TODAY...S wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 30 kt. Seas 11 ft.
.TUE...S wind 35 kt. Seas 10 ft. Rain.
.TUE NIGHT...SE wind 35 kt. Seas 14 ft.
.WED...S wind 30 kt. Seas 12 ft.
.THU...S wind 25 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 8 ft.

$$

PKZ174-190000-
Nikolski to Seguam Island Pacific Side-
317 AM AKDT Mon May 18 2020

...GALE WARNING TUESDAY...

.TODAY...SW wind 30 kt. Seas 12 ft building to 17 ft in the
afternoon.
.TONIGHT...SW wind 30 kt. Seas 17 ft. Rain.
.TUE...S wind 35 kt. Seas 13 ft. Rain.
.TUE NIGHT...S wind 40 kt. Seas 18 ft.
.WED...S wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 10 ft.
.FRI...W wind 25 kt. Seas 10 ft.

$$

PKZ175-190000-
Seguam Island to Adak Bering Side-
317 AM AKDT Mon May 18 2020

...GALE WARNING TUESDAY...

.TODAY...SW wind 25 kt. Seas 7 ft.
.TONIGHT...SW wind 25 kt. Seas 8 ft.
.TUE...SE wind 35 kt. Seas 9 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 11 ft.
.WED...S wind 25 kt. Seas 8 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 9 ft.

$$

PKZ176-190000-
Seguam Island to Adak Pacific Side-
317 AM AKDT Mon May 18 2020

...GALE WARNING TUESDAY...

.TODAY...SW wind 30 kt. Seas 17 ft. Rain.
.TONIGHT...SW wind 30 kt. Seas 16 ft. Rain.
.TUE...S wind 40 kt. Seas 16 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 18 ft.
.WED...S wind 30 kt. Seas 16 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 9 ft.

$$

PKZ177-190000-
Adak to Kiska-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 30 kt. Seas 12 ft.
.TONIGHT...SE wind 30 kt. Seas 9 ft. Rain.
.TUE...SE wind 30 kt. Seas 12 ft.
.TUE NIGHT...S wind 20 kt. Seas 13 ft.
.WED...W wind 15 kt. Seas 13 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 10 ft.

$$

PKZ178-190000-
Kiska to Attu-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...NW wind 20 kt becoming NE in the afternoon. Seas 10 ft.
.TONIGHT...NE wind 25 kt. Seas 9 ft.
.TUE...NE wind 30 kt. Seas 12 ft. Rain.
.TUE NIGHT...E wind 30 kt. Seas 13 ft.
.WED...NW wind 30 kt. Seas 14 ft.
.THU...W wind 30 kt. Seas 10 ft.
.FRI...W wind 25 kt. Seas 10 ft.

$$

PKZ179-190000-
Pribilof Islands Near Shore Waters-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY...

.TODAY...SE wind 15 kt. Seas 6 ft. Areas of fog.
.TONIGHT...SE wind 15 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 15 kt. Seas 8 ft. Areas of fog.
.TUE NIGHT...SE wind 30 kt. Seas 9 ft.
.WED...SE wind 30 kt. Seas 12 ft.
.THU...E wind 20 kt. Seas 6 ft.
.FRI...NE wind 15 kt. Seas 5 ft.

$$

PKZ180-190000-
Kuskokwim Delta and Etolin Strait-
317 AM AKDT Mon May 18 2020

.TODAY...SE wind 20 kt becoming S 10 kt in the afternoon. Seas 4 ft.
Rain.
.TONIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas 3 ft.
.TUE...W wind 15 kt. Seas 3 ft.
.TUE NIGHT...S wind 15 kt. Seas 5 ft.
.WED...SE wind 30 kt. Seas 8 ft.
.THU...SE wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 5 ft.

$$

PKZ181-190000-
North and West of Nunivak Island-
317 AM AKDT Mon May 18 2020

.TODAY...E wind 20 kt. Seas 4 ft.
.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.TUE...Variable wind 10 kt. Seas 3 ft.
.TUE NIGHT...SE wind 15 kt. Seas 3 ft.
.WED...E wind 30 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 4 ft.
.FRI...NE wind 15 kt. Seas 3 ft.

$$

PKZ185-190000-
Saint Matthew Island Waters-
317 AM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E of Saint Matthew Island, NE wind 25 kt...W of Saint 
Matthew Island, NE wind 30 kt . Seas 10 ft.
.TONIGHT...E of Saint Matthew Island, NE wind 25 kt...W of Saint 
Matthew Island, NE 30 kt. Seas 9 ft.
.TUE...E of Saint Matthew Island, NE wind 15 kt in the morning
becoming variable 10 kt. W of Saint Matthew Island, NE wind 25 kt.
Seas 7 ft.
.TUE NIGHT...E wind 25 kt. Seas 7 ft.
.WED...E wind 30 kt. Seas 10 ft.
.THU...NE wind 20 kt. Seas 7 ft.
.FRI...N wind 15 kt. Seas 7 ft.

$$

344 
FZAK52 PAFC 182350
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
350 PM AKDT Mon May 18 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.

PKZ199-191300-
350 PM AKDT Mon May 18 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 993 mb low 235 nm west of Dutch Harbor moves to 125 nm 
northwest of Dutch Harbor this evening and dissipates. A complex 
980 mb low 390 nm south of Shemya this evening moves to 145 nm 
north of Saint Paul at 981 mb by Wed afternoon.

$$

PKZ150-191300-
South of the AK Peninsula Sitkinak to Castle Cape-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...W wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 11 ft.
.TUE NIGHT...W wind 20 kt. Seas 12 ft.
.WED...S wind 25 kt. Seas 9 ft.
.WED NIGHT...SE wind 30 kt. Seas 12 ft.
.THU...S wind 25 kt. Seas 12 ft.
.FRI THROUGH SAT...S wind 15 kt. Seas 10 ft.

$$

PKZ155-191300-
South of the AK Peninsula Castle Cape to Cape Sarichef-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 25 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 14 ft.
.TUE NIGHT...S wind 25 kt. Seas 13 ft.
.WED...SE wind 30 kt. Seas 13 ft.
.WED NIGHT...S wind 25 kt. Seas 13 ft.
.THU THROUGH FRI...S wind 20 kt. Seas 12 ft.
.SAT...SW wind 15 kt. Seas 9 ft.

$$

PKZ160-191300-
Bristol Bay-
350 PM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY...

.TONIGHT...W wind 20 kt. Seas 4 ft. Rain.
.TUE...W wind 25 kt. Seas 5 ft.
.TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED...SE wind 25 kt. Seas 4 ft.
.WED NIGHT...SE wind 30 kt. Seas 7 ft.
.THU...SE wind 30 kt. Seas 6 ft.
.FRI THROUGH SAT...E wind 15 kt. Seas 4 ft.

$$

PKZ165-191300-
Port Heiden to Cape Sarichef-
350 PM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 4 ft.
.TUE...SW wind 20 kt. Seas 5 ft.
.TUE NIGHT...S wind 25 kt. Seas 5 ft.
.WED...SE wind 30 kt. Seas 7 ft.
.WED NIGHT...S wind 25 kt. Seas 5 ft.
.THU THROUGH FRI...SE wind 20 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.

$$

PKZ170-191300-
Cape Sarichef to Nikolski Bering Side-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 25 kt. Seas 9 ft.
.TUE...S wind 30 kt. Seas 8 ft.
.TUE NIGHT...S wind 30 kt. Seas 9 ft. Rain.
.WED...S wind 35 kt. Seas 9 ft.
.WED NIGHT...S wind 25 kt. Seas 7 ft.
.THU...S wind 20 kt. Seas 7 ft.
.FRI THROUGH SAT...W wind 15 kt. Seas 6 ft.

$$

PKZ171-191300-
Unalaska Bay-
350 PM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 3 ft. Rain.
.TUE...S wind 20 kt. Seas 3 ft.
.TUE NIGHT...SE wind 25 kt. Seas 4 ft. Rain.
.WED...S wind 25 kt. Seas 4 ft.
.WED NIGHT...S wind 15 kt. Seas 2 ft.
.THU...S wind 15 kt. Seas 2 ft.
.FRI THROUGH SAT...W wind 10 kt. Seas 2 ft.

$$

PKZ172-191300-
Cape Sarichef to Nikolski Pacific Side-
350 PM AKDT Mon May 18 2020

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 15 ft.
.TUE...SW wind 30 kt. Seas 15 ft.
.TUE NIGHT...S wind 35 kt. Seas 10 ft building to 16 ft after
midnight. Rain.
.WED...S wind 30 kt. Seas 16 ft.
.WED NIGHT...S wind 25 kt. Seas 14 ft.
.THU...S wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 10 ft.

$$

PKZ173-191300-
Nikolski to Seguam Island Bering Side-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 11 ft.
.TUE...S wind 35 kt. Seas 9 ft. Rain.
.TUE NIGHT...SE wind 35 kt. Seas 13 ft. Rain.
.WED AND WED NIGHT...S wind 25 kt. Seas 11 ft.
.THU...SW wind 25 kt. Seas 9 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 8 ft.

$$

PKZ174-191300-
Nikolski to Seguam Island Pacific Side-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 17 ft.
.TUE...S wind 35 kt. Seas 14 ft.
.TUE NIGHT...S wind 40 kt. Seas 17 ft. Rain.
.WED...S wind 30 kt. Seas 16 ft.
.WED NIGHT...SW wind 25 kt. Seas 16 ft.
.THU...SW wind 20 kt. Seas 15 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 10 ft.

$$

PKZ175-191300-
Seguam Island to Adak Bering Side-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 25 kt. Seas 7 ft. Rain.
.TUE...SE wind 35 kt. Seas 9 ft. Rain.
.TUE NIGHT...S wind 35 kt diminishing to 20 kt after midnight.
Seas 11 ft subsiding to 7 ft after midnight.
.WED...S wind 25 kt. Seas 7 ft.
.WED NIGHT...SW wind 25 kt. Seas 7 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 9 ft.

$$

PKZ176-191300-
Seguam Island to Adak Pacific Side-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SW wind 30 kt. Seas 16 ft. Rain.
.TUE...S wind 40 kt. Seas 16 ft. Rain.
.TUE NIGHT...S wind 35 kt diminishing to 25 kt after midnight.
Seas 16 ft. Rain showers.
.WED...S wind 30 kt. Seas 17 ft.
.WED NIGHT...SW wind 25 kt. Seas 16 ft.
.THU...W wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 9 ft.

$$

PKZ177-191300-
Adak to Kiska-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain.
.TUE...SE wind 30 kt. Seas 13 ft. Rain.
.TUE NIGHT...S wind 20 kt. Seas 14 ft.
.WED...SW wind 15 kt. Seas 14 ft.
.WED NIGHT...Variable wind 10 kt. Seas 13 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 8 ft.

$$

PKZ178-191300-
Kiska to Attu-
350 PM AKDT Mon May 18 2020

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 8 ft. Rain.
.TUE...NE wind 30 kt. Seas 14 ft. Rain.
.TUE NIGHT...S wind 20 kt in the evening becoming variable 10 kt.
From Shemya W, N wind 35 kt. Seas 15 ft.
.WED AND WED NIGHT...N wind 30 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 14 ft.
.FRI...W wind 25 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ179-191300-
Pribilof Islands Near Shore Waters-
350 PM AKDT Mon May 18 2020

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SE wind 15 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 15 kt. Seas 7 ft. Areas of fog.
.TUE NIGHT...SE wind 20 kt increasing to 30 kt after midnight.
Seas 8 ft. Areas of fog. Rain.
.WED...SE wind 30 kt. Seas 12 ft.
.WED NIGHT...SE wind 20 kt. Seas 8 ft.
.THU...SE wind 20 kt. Seas 8 ft.
.FRI...NE wind 15 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.

$$

PKZ180-191300-
Kuskokwim Delta and Etolin Strait-
350 PM AKDT Mon May 18 2020

.TONIGHT...W wind 15 kt. Seas 3 ft.
.TUE...W wind 15 kt. Seas 3 ft.
.TUE NIGHT...S wind 10 kt. Seas 4 ft.
.WED AND WED NIGHT...SE wind 25 kt. Seas 8 ft.
.THU...SE wind 20 kt. Seas 6 ft.
.FRI...E wind 15 kt. Seas 5 ft.
.SAT...E wind 10 kt. Seas 4 ft.

$$

PKZ181-191300-
North and West of Nunivak Island-
350 PM AKDT Mon May 18 2020

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.TUE...Variable wind 10 kt. Seas 3 ft.
.TUE NIGHT...SE wind 15 kt. Seas 3 ft.
.WED AND WED NIGHT...E wind 25 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 4 ft.
.FRI...NE wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt. Seas 3 ft.

$$

PKZ185-191300-
Saint Matthew Island Waters-
350 PM AKDT Mon May 18 2020

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

.TONIGHT...NE wind 25 kt E of Saint Matthew Island... NE 30 kt W
of Saint Matthew Island. Seas 9 ft.
.TUE...E of Saint Matthew Island, NE wind 15 kt in the morning
becoming variable 10 kt. W of Saint Matthew Island, NE wind 25 kt.
Seas 6 ft.
.TUE NIGHT...E of Saint Matthew Island, variable wind 10 kt
becoming E 20 kt after midnight. W of Saint Matthew Island, E wind 
30 kt. Seas 7 ft.
.WED AND WED NIGHT...E wind 30 kt. Seas 10 ft.
.THU...NE wind 25 kt. Seas 9 ft.
.FRI THROUGH SAT...N wind 15 kt. Seas 6 ft.

$$

631 
FZAK52 PAFC 191147
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
347 AM AKDT Tue May 19 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.

PKZ199-200115-
347 AM AKDT Tue May 19 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 974 mb low at 200 nm south of Attu moves to 100 nm south of 
Adak at 981 mb by Wed morning. It stalls 100 nm north of Adak by 
Wed night. Its front tracks across the Aleutians and Bristol Bay 
through Thu morning.

$$

PKZ150-200115-
South of the AK Peninsula Sitkinak to Castle Cape-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Seas 10 ft.
.TONIGHT...W wind 20 kt. Seas 10 ft.
.WED...SE wind increasing to 25 kt. Seas 9 ft.
.WED NIGHT...SE wind 30 kt. Seas 11 ft.
.THU...S wind 25 kt. Seas 11 ft.
.FRI...SE wind 20 kt. Seas 10 ft.
.SAT...S wind 15 kt. Seas 10 ft.

$$

PKZ155-200115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...SW wind 20 kt becoming SE 30 kt after midnight W of the 
Shumagin Islands. Seas 11 ft.
.WED...SE wind 30 kt. Seas 13 ft. Rain showers.
.WED NIGHT...S wind 30 kt. Seas 13 ft.
.THU THROUGH FRI...S wind 20 kt. Seas 13 ft.
.SAT...S wind 15 kt. Seas 9 ft.

$$

PKZ160-200115-
Bristol Bay-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...W wind 20 kt. Seas 4 ft.
.TONIGHT...SW wind 15 kt becoming S 10 kt after midnight. Seas 4 ft.
.WED...SE wind increasing to 25 kt. Seas 4 ft.
.WED NIGHT...SE wind 30 kt. Seas 7 ft.
.THU...SE wind 30 kt. Seas 6 ft.
.FRI...E wind 20 kt. Seas 4 ft.
.SAT...E wind 15 kt. Seas 4 ft.

$$

PKZ165-200115-
Port Heiden to Cape Sarichef-
347 AM AKDT Tue May 19 2020

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

.TODAY...SW wind 15 kt. Seas 4 ft.
.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight W of Port
Moller. Seas 5 ft.
.WED...SE wind 30 kt. Seas 7 ft.
.WED NIGHT...SE wind 30 kt. Seas 6 ft.
.THU...S wind 25 kt. Seas 6 ft.
.FRI THROUGH SAT...SE wind 20 kt. Seas 5 ft.

$$

PKZ170-200115-
Cape Sarichef to Nikolski Bering Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TODAY...SW wind 20 kt becoming SE 25 kt in the afternoon. Seas 6 
ft.
.TONIGHT...SE wind increasing to 35 kt. Seas 9 ft. Rain.
.WED...SE wind 30 kt. Seas 8 ft.
.WED NIGHT...S wind 25 kt. Seas 8 ft.
.THU...S wind 25 kt. Seas 8 ft.
.FRI...S wind 15 kt. Seas 6 ft.
.SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ171-200115-
Unalaska Bay-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...SW wind 10 kt becoming S in the afternoon. Seas 2 ft.
.TONIGHT...SE wind increasing to 25 kt. Seas 4 ft. Rain.
.WED...SE wind 20 kt. Seas 3 ft.
.WED NIGHT...S wind 20 kt. Seas 2 ft.
.THU...S wind 20 kt. Seas 3 ft.
.FRI...Variable wind less than 10 kt. Seas 2 ft.
.SAT...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-200115-
Cape Sarichef to Nikolski Pacific Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TODAY...SW wind 25 kt. Seas 14 ft.
.TONIGHT...SE wind increasing to 35 kt. Seas 14 ft. Rain.
.WED...S wind 25 kt. Seas 15 ft.
.WED NIGHT...S wind 25 kt. Seas 14 ft.
.THU...S wind 30 kt. Seas 16 ft.
.FRI...SW wind 20 kt. Seas 13 ft.
.SAT...W wind 20 kt. Seas 9 ft.

$$

PKZ173-200115-
Nikolski to Seguam Island Bering Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 20 kt becoming SE 35 kt in the afternoon. Seas 9 ft.
Rain.
.TONIGHT...SE wind 35 kt becoming S 20 kt after midnight. Seas 12 
ft. Rain.
.WED...S wind 30 kt. Seas 11 ft.
.WED NIGHT...S wind 25 kt. Seas 11 ft.
.THU...SW wind 25 kt. Seas 9 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 8 ft.

$$

PKZ174-200115-
Nikolski to Seguam Island Pacific Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 20 kt becoming SE 40 kt in the afternoon. Seas
12 ft. Rain.
.TONIGHT...S wind 40 kt diminishing to 20 kt after midnight. Seas
16 ft. Rain.
.WED...S wind 30 kt. Seas 16 ft. Rain showers.
.WED NIGHT...S wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 17 ft.
.FRI...W wind 20 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 10 ft.

$$

PKZ175-200115-
Seguam Island to Adak Bering Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt. Seas 9 ft. Rain.
.TONIGHT...S wind 30 kt becoming SE 20 kt after midnight. Seas
10 ft. Rain.
.WED...SE wind 25 kt. Seas 7 ft. Rain showers.
.WED NIGHT...SW wind 25 kt. Seas 8 ft.
.THU...W wind 20 kt. Seas 7 ft.
.FRI...W wind 25 kt. Seas 9 ft.
.SAT...W wind 20 kt. Seas 8 ft.

$$

PKZ176-200115-
Seguam Island to Adak Pacific Side-
347 AM AKDT Tue May 19 2020

...GALE WARNING TODAY...

.TODAY...S wind 40 kt. Seas 14 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 15 ft. Rain showers.
.WED...SW wind 30 kt. Seas 17 ft.
.WED NIGHT...SW wind 25 kt. Seas 17 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 9 ft.

$$

PKZ177-200115-
Adak to Kiska-
347 AM AKDT Tue May 19 2020

...GALE WARNING TODAY...

.TODAY...SE wind 40 kt becoming S 20 kt in the afternoon. Seas 13 
ft. Rain.
.TONIGHT...Variable wind 15 kt. Seas 13 ft.
.WED...Variable wind 15 kt. Seas 14 ft.
.WED NIGHT...NW wind 15 kt. Seas 12 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 11 ft.
.SAT...W wind 25 kt. Seas 8 ft.

$$

PKZ178-200115-
Kiska to Attu-
347 AM AKDT Tue May 19 2020

...GALE WARNING TODAY AND WEDNESDAY...

.TODAY...E wind 35 kt. Seas 13 ft. Rain showers.
.TONIGHT...Variable wind 10 kt except NE 30 kt W of Shemya. Seas 13 
ft.
.WED...Variable wind 10 kt except N 35 kt W of Shemya. Seas 15 ft. 
Rain showers.
.WED NIGHT...N wind 30 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 14 ft.
.FRI...W wind 25 kt. Seas 12 ft.
.SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ179-200115-
Pribilof Islands Near Shore Waters-
347 AM AKDT Tue May 19 2020

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

.TODAY...Variable wind 10 kt. Seas 6 ft. Areas of fog.
.TONIGHT...SE wind 15 kt increasing to 30 kt after midnight. Seas 8 
ft. Areas of fog. Rain showers.
.WED...SE wind 30 kt diminishing to 15 kt in the afternoon. Seas 10 
ft. Areas of fog.
.WED NIGHT...SE wind 20 kt. Seas 9 ft.
.THU...SE wind 20 kt. Seas 8 ft.
.FRI THROUGH SAT...N wind 15 kt. Seas 5 ft.

$$

PKZ180-200115-
Kuskokwim Delta and Etolin Strait-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...W wind 15 kt. Seas 4 ft.
.TONIGHT...SW wind 15 kt becoming SE after midnight. Seas 4 ft.
.WED...SE wind 30 kt. Seas 8 ft. Rain showers.
.WED NIGHT...SE wind 30 kt. Seas 9 ft.
.THU...SE wind 25 kt. Seas 7 ft.
.FRI...E wind 20 kt. Seas 6 ft.
.SAT...E wind 15 kt. Seas 4 ft.

$$

PKZ181-200115-
North and West of Nunivak Island-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY...

.TODAY...N wind 20 kt becoming variable 15 kt in the afternoon. Seas
3 ft.
.TONIGHT...Variable wind 10 kt becoming SE 15 kt after midnight.
Seas 2 ft.
.WED...SE wind increasing to 25 kt. Seas 5 ft. Rain.
.WED NIGHT...E wind 25 kt. Seas 7 ft.
.THU THROUGH FRI...E wind 20 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 3 ft.

$$

PKZ185-200115-
Saint Matthew Island Waters-
347 AM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...N wind 20 kt E of Saint Matthew Island...NE 25 kt W of
Saint Matthew Island. Seas 7 ft.
.TONIGHT...E wind 20 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 7 ft.
.WED...E wind 30 kt. Seas 10 ft. Rain showers.
.WED NIGHT...E wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 10 ft.
.FRI...NE wind 20 kt. Seas 7 ft.
.SAT...N wind 15 kt. Seas 4 ft.

$$

577 
FZAK52 PAFC 192322
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
322 PM AKDT Tue May 19 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.

PKZ199-201215-
322 PM AKDT Tue May 19 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 974 mb low 250 nm south of Shemya moves to 120 nm north of Adak
at 983 mb by Thu afternoon.

$$

PKZ150-201215-
South of the AK Peninsula Sitkinak to Castle Cape-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 10 ft.
.WED...SE wind increasing to 25 kt. Seas 9 ft.
.WED NIGHT...SE wind 30 kt. Seas 11 ft. Rain.
.THU...S wind 25 kt. Seas 12 ft.
.THU NIGHT...S wind 15 kt. Seas 10 ft.
.FRI...SE wind 20 kt. Seas 10 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 9 ft.

$$

PKZ155-201215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW wind 20 kt becoming S 30 kt after midnight. From the
Shumagin Islands E, SW wind 20 kt. Seas 11 ft.
.WED...SE wind 30 kt. Seas 13 ft. Rain showers.
.WED NIGHT...S wind 20 kt. From the Shumagin Islands E, SE wind
30 kt becoming S 20 kt after midnight. Seas 13 ft.
.THU AND THU NIGHT...S wind 20 kt. Seas 12 ft.
.FRI...SE wind 20 kt. Seas 11 ft.
.SAT...S wind 15 kt. Seas 9 ft.
.SUN...SW wind 20 kt. Seas 7 ft.

$$

PKZ160-201215-
Bristol Bay-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW wind 15 kt becoming S after midnight. Seas 4 ft.
.WED...SE wind increasing to 25 kt. Seas 5 ft.
.WED NIGHT...SE wind 30 kt. Seas 7 ft. Rain.
.THU...SE wind 30 kt. Seas 6 ft.
.THU NIGHT...SE wind 20 kt. Seas 4 ft.
.FRI...E wind 25 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 4 ft.
.SUN...SE wind 10 kt. Seas 3 ft.

$$

PKZ165-201215-
Port Heiden to Cape Sarichef-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight. From
Port Moller E, SE wind 20 kt. Seas 5 ft.
.WED...SE wind 30 kt. Seas 7 ft.
.WED NIGHT...SE wind 30 kt. Seas 6 ft.
.THU...S wind 25 kt. Seas 5 ft.
.THU NIGHT...SE wind 20 kt. Seas 5 ft.
.FRI...SE wind 25 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 4 ft.
.SUN...S wind 15 kt. Seas 3 ft.

$$

PKZ170-201215-
Cape Sarichef to Nikolski Bering Side-
322 PM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 8 ft. Rain.
.WED...SE wind 30 kt. Seas 8 ft.
.WED NIGHT...S wind 25 kt. Seas 8 ft.
.THU AND THU NIGHT...S wind 25 kt. Seas 8 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 5 ft.

$$

PKZ171-201215-
Unalaska Bay-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE wind increasing to 25 kt. Seas 4 ft. Rain.
.WED...SE wind 20 kt. Seas 3 ft.
.WED NIGHT...S wind 20 kt. Seas 2 ft. Rain showers.
.THU...S wind 20 kt. Seas 3 ft.
.THU NIGHT...SE wind 15 kt. Seas 2 ft.
.FRI...Variable wind less than 10 kt. Seas 2 ft.
.SAT THROUGH SUN...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-201215-
Cape Sarichef to Nikolski Pacific Side-
322 PM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 14 ft. Rain.
.WED...S wind 30 kt. Seas 14 ft.
.WED NIGHT...S wind 25 kt. Seas 15 ft. Rain showers.
.THU...S wind 30 kt. Seas 16 ft.
.THU NIGHT...S wind 25 kt. Seas 14 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 11 ft.
.SUN...SW wind 20 kt. Seas 7 ft.

$$

PKZ173-201215-
Nikolski to Seguam Island Bering Side-
322 PM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt becoming S 20 kt after midnight. Seas 12 
ft. Rain.
.WED...SE wind 30 kt. Seas 11 ft.
.WED NIGHT...S wind 25 kt. Seas 12 ft.
.THU...SW wind 25 kt. Seas 9 ft.
.THU NIGHT...W wind 15 kt. Seas 7 ft.
.FRI THROUGH SUN...W wind 20 kt. Seas 7 ft.

$$

PKZ174-201215-
Nikolski to Seguam Island Pacific Side-
322 PM AKDT Tue May 19 2020

...GALE WARNING TONIGHT...

.TONIGHT...S wind 40 kt diminishing to 30 kt after midnight. Seas
15 ft. Rain.
.WED...S wind 30 kt. Seas 16 ft. Rain showers.
.WED NIGHT...S wind 30 kt. Seas 17 ft. Rain showers.
.THU...SW wind 30 kt. Seas 17 ft.
.THU NIGHT...SW wind 15 kt. Seas 13 ft.
.FRI...W wind 20 kt. Seas 11 ft.
.SAT THROUGH SUN...W wind 25 kt. Seas 9 ft.

$$

PKZ175-201215-
Seguam Island to Adak Bering Side-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt becoming SE 20 kt after midnight. Seas
10 ft. Rain.
.WED...SE wind 25 kt becoming SW in the afternoon. Seas 8 ft. Rain
showers.
.WED NIGHT...SW wind 25 kt. Seas 8 ft.
.THU...W wind 20 kt. Seas 7 ft.
.THU NIGHT...NW wind 20 kt. Seas 6 ft.
.FRI...NW wind 25 kt. Seas 9 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 7 ft.

$$

PKZ176-201215-
Seguam Island to Adak Pacific Side-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 15 ft. Rain showers.
.WED...S wind 30 kt. Seas 17 ft.
.WED NIGHT...SW wind 25 kt. Seas 17 ft.
.THU...W wind 20 kt. Seas 14 ft.
.THU NIGHT...W wind 25 kt. Seas 12 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 10 ft.
.SUN...W wind 25 kt. Seas 6 ft.

$$

PKZ177-201215-
Adak to Kiska-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 20 kt becoming variable 10 kt after midnight. Seas
13 ft.
.WED...NW wind 15 kt. Seas 14 ft.
.WED NIGHT...NW wind 15 kt. Seas 12 ft.
.THU...W wind 25 kt. Seas 10 ft.
.THU NIGHT...NW wind 30 kt. Seas 11 ft.
.FRI...NW wind 30 kt. Seas 11 ft.
.SAT...W wind 25 kt. Seas 8 ft.
.SUN...W wind 20 kt. Seas 5 ft.

$$

PKZ178-201215-
Kiska to Attu-
322 PM AKDT Tue May 19 2020

...GALE WARNING WEDNESDAY...

.TONIGHT...Variable wind 10 kt except NE 30 kt from Shemya W. Seas
13 ft.
.WED...Variable wind 10 kt except N 35 kt from Shemya W. Seas 15
ft. Rain showers.
.WED NIGHT...N wind 30 kt. Seas 15 ft.
.THU AND THU NIGHT...NW wind 30 kt. Seas 14 ft.
.FRI...NW wind 25 kt. Seas 11 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 6 ft.

$$

PKZ179-201215-
Pribilof Islands Near Shore Waters-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 20 kt becoming E 30 kt after midnight. Seas 8
ft. Rain.
.WED...SE wind 30 kt diminishing to 20 kt in the afternoon. Seas
10 ft.
.WED NIGHT...SE wind 20 kt. Seas 8 ft. Patchy fog.
.THU...SE wind 20 kt. Seas 9 ft.
.THU NIGHT...E wind 15 kt. Seas 6 ft.
.FRI...NE wind 20 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 3 ft.

$$

PKZ180-201215-
Kuskokwim Delta and Etolin Strait-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW wind 15 kt becoming SE after midnight. Seas 4 ft.
.WED...SE wind 30 kt. Seas 7 ft. Rain showers.
.WED NIGHT...SE wind 30 kt. Seas 9 ft. Rain showers.
.THU...SE wind 25 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 5 ft.
.FRI...E wind 20 kt. Seas 5 ft.
.SAT...E wind 15 kt. Seas 4 ft.
.SUN...E wind 10 kt. Seas 3 ft.

$$

PKZ181-201215-
North and West of Nunivak Island-
322 PM AKDT Tue May 19 2020

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming SE 15 kt after midnight.
Seas 3 ft.
.WED...SE wind 25 kt. Seas 5 ft. Rain.
.WED NIGHT...E wind 25 kt. Seas 7 ft. Rain showers.
.THU...SE wind 20 kt. Seas 5 ft.
.THU NIGHT...SE wind 15 kt. Seas 4 ft.
.FRI...E wind 15 kt. Seas 3 ft.
.SAT THROUGH SUN...NE wind 15 kt. Seas 3 ft.

$$

PKZ185-201215-
Saint Matthew Island Waters-
322 PM AKDT Tue May 19 2020

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...E wind 20 kt E of Saint Matthew Island...NE 30 kt W of
Saint Matthew Island. Seas 7 ft.
.WED...E wind 30 kt. Seas 10 ft. Rain showers.
.WED NIGHT...E wind 25 kt E of Saint Matthew Island... NE 35 kt W
of Saint Matthew Island. Seas 11 ft. Rain.
.THU...E wind 30 kt. Seas 10 ft.
.THU NIGHT...E wind 25 kt. Seas 8 ft.
.FRI...NE wind 20 kt. Seas 7 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN...N wind 20 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
357 AM AKDT Sun May 17 2020

.ANALYSIS AND UPPER LEVELS...

Two lows, both at 500 mb and at the surface, are currently phasing
over the far western Aleutians. This is leading to widespread
rain, generally west of Unalaska along the surface low's
associated front. A weak vorticity maximum is moving northeastward
over the Kuskokwim Delta bringing light scattered showers to that
region. Weak upper ridging over Bristol Bay and the Alaska
Peninsula is somewhat breaking up cloud cover, though light
onshore flow is preventing skies from completely clearing. A
trough extends significantly to the west of a deep 500 mb low
over the Canadian Arctic. However, its orientation is leading to
drier air advecting from the north per water vapor imagery and
thus skies are generally clearing in the Copper River Basin with
more overcast conditions observed to the southwest near Anchorage
where the upper flow is weaker.

&&

.MODEL DISCUSSION...

Synoptic features continue to be well-handled by all major
models. Confidence remains high.

&&

.AVIATION...

PANC...VFR conditions and light winds will persist.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

A weak trough over Southcentral will move eastward today. High
pressure will move into the area today and remain over the
mainland through tonight. An upper level trough and associated
front will move into the southwest Gulf late this afternoon and
then into Kodiak tonight. This front will reach the north Gulf
coast around midday on Monday, then into the Southcentral mainland
during the afternoon and evening hours. This will bring
increasing chances of rain to the area.

&&

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

Upper level ridging will continue to shift eastward across
southwest Alaska today through Tuesday. Due to the 500 mb ridge-
axis being located to the east of the area today and on Monday,
southwesterly flow aloft will continue to bring cloud cover and
moisture from the Bering. Due to the ample cloud cover minimizing
the magnitude of diurnal heating, the chance for convection is
low as the atmosphere remains relatively stable. A warm front
associated with a weakening low pressure system in the eastern
Bering will move over the AKPEN and Bristol Bay late tonight
through Monday morning, then into the Kuskokwim Delta and
Kuskokwim Valley Monday afternoon through Monday night. This front
will bring widespread stratiform rain to the area. Due to the
dynamic process leading to overrunning, the chance for convection
is minimal as the atmosphere will remain stable. This rain will
gradually taper off from southwest to northeast on Tuesday.

&&

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

The jetstream pattern remains amplified during the forecast period as
teleconnections support a persistent trough over the western
Bering/Aleutians, ridging over the eastern Aleutians into the
AKPEN and western Gulf. A low pressure system is currently moving
northward and approaching the central Aleutians. The system has
occluded and the core of the subtropical jetstream is moving
farther east and away from the cyclonic vorticity maxima (center
of counterclockwise circulation). Due to this, the synoptic scale
forcing from the left-exit region of the jet will become weaker
and thus the low pressure system will gradually weaken.
Scatterometry (ASCAT) data shows winds currently below gale
force. Since the system is currently weakening, gale force winds
are not expected at this time as the system enters the central
Bering. Widespread rain associated with this low is expected
across the Aleutian chain today. There is good agreement that
rain will move over the Pribilof Islands during the late afternoon
hours today. This low will then weaken over the eastern Bering on
Monday resulting in stratiform rain tapering to showers from
south to north through the day. Fog is expected today through
Tuesday across the Pribilof Islands as this low moves across the
area. GFS/NAM/ECMWF MOS guidance is consistent with dewpoint
depressions being near zero in Saint Paul, especially during the
nighttime hours. A second low pressure system will approach the
western Aleutians from the North Pacific Monday night into Tuesday
morning. There is good agreement with this low bringing gusty winds
and rain to the western and central Aleutian chain on Tuesday.
There is a higher degree of uncertainty with wind speeds reaching
gale force, though the best chance for this would be on the
Pacific side of the western Aleutian chain.

For the sea state, large long period swell will continue along the
Pacific side of the Aleutian chain. There is good agreement
between GFS WW3 and ECMWF WAM with this swell gradually building
from today through Tuesday and remaining long in period.

&&

.MARINE (Days 3 through 5)...

Gulf of Alaska: Two rounds of weak low pressure will move through
Gulf of Alaska. The first on Tuesday will be just exiting the
area. It will produce some elevated winds and sea states, but
nothing significant. The next low will move in Thursday. It will
again elevate winds and waves, but the only area meeting small
craft advisory will be around the Barren Islands. Forecast
confidence is above average.

Bering Sea: A large but weak low pressure system is expected to
move east through the Bering. The low center should be right over
the Aleutian Islands. Some marine areas may meet small craft
advisory criteria, but this is low is not expected to have signifcant
impacts to marine traffic. Forecast confidence is above average.

&&

.LONG TERM FORECAST (Days 4 through 7)...

A change in the weather pattern will present itself on Monday,
starting over the central Aleutians, as an area of low pressure
traverses eastward across the southern Bering. This feature will
bring precipitation and increased winds across the region as it
approaches the southwest coast Monday morning. That moisture will
then advect across southwestern Alaska and into Southcentral
Monday night.

Behind this, expect the same conditions as another low propagates
into the western Aleutians Tuesday morning, following the same
track as the aforementioned low. Expect landfall sometime
Wednesday evening on the southwest coast and propagation eastward
into Southcentral Thursday and into Friday.

All in all, expect cooler temperatures, chances for rain and
increased winds through the extended forecast period.

&&

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

&&

SYNOPSIS AND MODEL DISCUSSION...AP
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...ED
MARINE/LONG TERM...CK/BB