Gale Warning 369, NWS Anchorage, AK

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.

$$

945 
FZAK52 PAFC 201142
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
342 AM AKDT Wed May 20 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.

PKZ199-210030-
342 AM AKDT Wed May 20 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.

$$

PKZ150-210030-
South of the AK Peninsula Sitkinak to Castle Cape-
342 AM AKDT Wed May 20 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.

$$

PKZ155-210030-
South of the AK Peninsula Castle Cape to Cape Sarichef-
342 AM AKDT Wed May 20 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.

$$

PKZ160-210030-
Bristol Bay-
342 AM AKDT Wed May 20 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.

$$

PKZ165-210030-
Port Heiden to Cape Sarichef-
342 AM AKDT Wed May 20 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.

$$

PKZ170-210030-
Cape Sarichef to Nikolski Bering Side-
342 AM AKDT Wed May 20 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.

$$

PKZ171-210030-
Unalaska Bay-
342 AM AKDT Wed May 20 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.

$$

PKZ172-210030-
Cape Sarichef to Nikolski Pacific Side-
342 AM AKDT Wed May 20 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.

$$

PKZ173-210030-
Nikolski to Seguam Island Bering Side-
342 AM AKDT Wed May 20 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.

$$

PKZ174-210030-
Nikolski to Seguam Island Pacific Side-
342 AM AKDT Wed May 20 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.

$$

PKZ175-210030-
Seguam Island to Adak Bering Side-
342 AM AKDT Wed May 20 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.

$$

PKZ176-210030-
Seguam Island to Adak Pacific Side-
342 AM AKDT Wed May 20 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.

$$

PKZ177-210030-
Adak to Kiska-
342 AM AKDT Wed May 20 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.

$$

PKZ178-210030-
Kiska to Attu-
342 AM AKDT Wed May 20 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.

$$

PKZ179-210030-
Pribilof Islands Near Shore Waters-
342 AM AKDT Wed May 20 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.

$$

PKZ180-210030-
Kuskokwim Delta and Etolin Strait-
342 AM AKDT Wed May 20 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.

$$

PKZ181-210030-
North and West of Nunivak Island-
342 AM AKDT Wed May 20 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.

$$

PKZ185-210030-
Saint Matthew Island Waters-
342 AM AKDT Wed May 20 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.

$$

150 
FZAK52 PAFC 201147
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
347 AM AKDT Wed May 20 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.

PKZ199-210100-
347 AM AKDT Wed May 20 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 974 mb low 150 nm southwest of Adak moves to 120 nm north of Adak 
at 983 mb by Thu afternoon.

$$

PKZ150-210100-
South of the AK Peninsula Sitkinak to Castle Cape-
347 AM AKDT Wed May 20 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.

$$

PKZ155-210100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
347 AM AKDT Wed May 20 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.

$$

PKZ160-210100-
Bristol Bay-
347 AM AKDT Wed May 20 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.

$$

PKZ165-210100-
Port Heiden to Cape Sarichef-
347 AM AKDT Wed May 20 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.

$$

PKZ170-210100-
Cape Sarichef to Nikolski Bering Side-
347 AM AKDT Wed May 20 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.

$$

PKZ171-210100-
Unalaska Bay-
347 AM AKDT Wed May 20 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.

$$

PKZ172-210100-
Cape Sarichef to Nikolski Pacific Side-
347 AM AKDT Wed May 20 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.

$$

PKZ173-210100-
Nikolski to Seguam Island Bering Side-
347 AM AKDT Wed May 20 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.

$$

PKZ174-210100-
Nikolski to Seguam Island Pacific Side-
347 AM AKDT Wed May 20 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.

$$

PKZ175-210100-
Seguam Island to Adak Bering Side-
347 AM AKDT Wed May 20 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.

$$

PKZ176-210100-
Seguam Island to Adak Pacific Side-
347 AM AKDT Wed May 20 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.

$$

PKZ177-210100-
Adak to Kiska-
347 AM AKDT Wed May 20 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.

$$

PKZ178-210100-
Kiska to Attu-
347 AM AKDT Wed May 20 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.

$$

PKZ179-210100-
Pribilof Islands Near Shore Waters-
347 AM AKDT Wed May 20 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.

$$

PKZ180-210100-
Kuskokwim Delta and Etolin Strait-
347 AM AKDT Wed May 20 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.

$$

PKZ181-210100-
North and West of Nunivak Island-
347 AM AKDT Wed May 20 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.

$$

PKZ185-210100-
Saint Matthew Island Waters-
347 AM AKDT Wed May 20 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.

$$

603 
FZAK52 PAFC 201719
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
919 AM AKDT Wed May 20 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.

PKZ199-210615-
919 AM AKDT Wed May 20 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 120 nm north of Adak at
983 mb by Thu afternoon.

$$

PKZ150-210615-
South of the AK Peninsula Sitkinak to Castle Cape-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 25 kt. Seas 9 ft.
.TONIGHT...SE wind 30 kt. Seas 11 ft. Rain.
.THU...S wind 25 kt diminishing to 15 kt in the afternoon. 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.

$$

PKZ155-210615-
South of the AK Peninsula Castle Cape to Cape Sarichef-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

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

$$

PKZ160-210615-
Bristol Bay-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 25 kt. Seas 5 ft.
.TONIGHT...SE wind 30 kt. Seas 7 ft.
.THU...SE wind 30 kt diminishing to 20 kt in the afternoon. Seas
6 ft subsiding to 3 ft in the afternoon.
.THU NIGHT...SE wind 20 kt. Seas 4 ft.
.FRI...E wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 4 ft.

$$

PKZ165-210615-
Port Heiden to Cape Sarichef-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 7 ft.
.TONIGHT...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...Variable wind 10 kt. Seas 4 ft.
.SUN...S wind 15 kt. Seas 4 ft.

$$

PKZ170-210615-
Cape Sarichef to Nikolski Bering Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 8 ft.
.TONIGHT...S wind 25 kt. Seas 8 ft.
.THU...S wind 25 kt. Seas 8 ft.
.THU NIGHT...S wind 25 kt. Seas 7 ft.
.FRI THROUGH SUN...SW wind 20 kt. Seas 6 ft.

$$

PKZ171-210615-
Unalaska Bay-
919 AM AKDT Wed May 20 2020

.TODAY...SE wind 20 kt. Seas 3 ft.
.TONIGHT...S wind 20 kt. Seas 2 ft. Rain.
.THU...S wind 20 kt. Seas 3 ft. Rain showers.
.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.

$$

PKZ172-210615-
Cape Sarichef to Nikolski Pacific Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 30 kt. Seas 14 ft. Rain showers.
.TONIGHT...S wind 25 kt. Seas 15 ft.
.THU...S wind 30 kt. Seas 16 ft. Rain showers.
.THU NIGHT...S wind 25 kt. Seas 14 ft.
.FRI...SW wind 15 kt. Seas 12 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SUN...SW wind 25 kt. Seas 7 ft.

$$

PKZ173-210615-
Nikolski to Seguam Island Bering Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...S wind 25 kt. Seas 12 ft.
.THU...S wind 25 kt. Seas 9 ft.
.THU NIGHT...W wind 15 kt. Seas 7 ft.
.FRI THROUGH SUN...W wind 20 kt. Seas 8 ft.

$$

PKZ174-210615-
Nikolski to Seguam Island Pacific Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 30 kt. Seas 16 ft. Rain showers.
.TONIGHT...S wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 17 ft. Rain showers.
.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.

$$

PKZ175-210615-
Seguam Island to Adak Bering Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SE wind 25 kt becoming SW in the afternoon. Seas 8 ft.
Rain
showers.
.TONIGHT...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 8 ft.

$$

PKZ176-210615-
Seguam Island to Adak Pacific Side-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 30 kt. Seas 17 ft. Rain showers.
.TONIGHT...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...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SUN...W wind 25 kt. Seas 6 ft.

$$

PKZ177-210615-
Adak to Kiska-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NW wind 15 kt. Seas 14 ft.
.TONIGHT...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 THROUGH SUN...W wind 20 kt. Seas 7 ft.

$$

PKZ178-210615-
Kiska to Attu-
919 AM AKDT Wed May 20 2020

...GALE WARNING TODAY...

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

$$

PKZ179-210615-
Pribilof Islands Near Shore Waters-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt diminishing to 20 kt in the afternoon. Seas
10 ft. Patchy fog. Rain showers.
.TONIGHT...SE wind 20 kt. Seas 8 ft. Patchy fog.
.THU...SE wind 20 kt. Seas 9 ft. Patchy fog.
.THU NIGHT...E wind 15 kt. Seas 6 ft.
.FRI...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN...Variable wind 10 kt. Seas 3 ft.

$$

PKZ180-210615-
Kuskokwim Delta and Etolin Strait-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SE wind 30 kt. Seas 7 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 9 ft. Rain.
.THU...SE wind 25 kt. Seas 7 ft.
.THU NIGHT...SE wind 20 kt. Seas 5 ft.
.FRI...E wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...E wind 15 kt. Seas 4 ft.

$$

PKZ181-210615-
North and West of Nunivak Island-
919 AM AKDT Wed May 20 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SE wind 25 kt. Seas 5 ft. Rain.
.TONIGHT...E wind 25 kt. Seas 7 ft. Rain.
.THU...E wind 20 kt. Seas 5 ft.
.THU NIGHT...SE wind 15 kt. Seas 4 ft.
.FRI...E wind 20 kt. Seas 3 ft.
.SAT THROUGH SUN...NE wind 15 kt. Seas 3 ft.

$$

PKZ185-210615-
Saint Matthew Island Waters-
919 AM AKDT Wed May 20 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 30 kt. Seas 10 ft. Rain.
.TONIGHT...E wind 25 kt E of Saint Matthew Island...NE 35 kt W of
Saint Matthew Island. Seas 11 ft. Rain and snow.
.THU...E wind 20 kt E of Saint Matthew Island...NE 30 kt W of
Saint
Matthew Island. Seas 10 ft.
.THU NIGHT...E wind 25 kt. Seas 8 ft.
.FRI...NE wind 20 kt. Seas 7 ft.
.SAT THROUGH SUN...N wind 20 kt. Seas 5 ft.

$$

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

.ANALYSIS AND UPPER LEVELS...

Upper level ridging is over the Gulf of Alaska and pushing into
Southern Alaska. The 250 mb jet stream is riding around this
ridge over the Alaska Peninsula and then over the Kenai Peninsula
before returning to the south over Southeast Alaska. A weak short
wave is over the eastern Copper River Basin and heading over the
AlCan border and out of the area.

Low pressure is making headway in the Bering Sea with a low close
to Adak with a front encompassing most of the Bering.

Mild instability remains over the mountains in Southcentral as
well as the Kuskokwim Valley region though it will be at peak
intensity late afternoon and rapidly become more stable by early
evening.

&&

.MODEL DISCUSSION...

Models remain in very good synoptic agreement though late in the
week. More subtle features will dictate model preference for
periods of convection and other more local features.

&&

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

&&

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

High pressure will continue to keep most locations dry through
tonight for Southcentral. A mid-level trough, with an attendant
surface front will move into the southwestern Gulf and Kodiak
Island area tonight, reaching the remainder of Southcentral by
Monday. A fairly good chance of rainfall will accompany these
features as they move into the region. The front then undergoes
frontolysis (the dissipation of a front), as the trough outruns
it's better upper-level support. As this process occurs,
widespread clouds and a showery pattern will continue on Tuesday,
before drier air moves into the region on Wednesday.

&&

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

Scattered showers have developed along a boundary extending along
the Lower Kuskokwim Valley. The showers may move over Bethel later
this afternoon. Otherwise most of Southwest Alaska is under partly
to mostly sunny skies. This will change tonight as a front
associated with a low over the Bering moves into Southwest Alaska
from south to north. Thus, the lowest relative humidity values of
the next several days are expected this afternoon over the Lower
Kuskokwim Valley.

As the front moves into Southwest Alaska on Monday morning, a low
is expected to develop south of Kodiak Island. As the front falls
apart and weakens, the low tracking near Kodiak Island will
concentrate the moisture around it. Thus, the heaviest rains are
expected over Bristol Bay Monday afternoon. Any initial
downsloping with the front should diminish as the low takes over.
Scattered shower activity will persist across much of Southwest
Alaska into the day Tuesday.

A break in the action is expected Tuesday night into most of
Wednesday. However, the next Bering front will approach the coast
late in the day on Wednesday. Thus, any sunshine will be brief,
and will be most likely away from the coast.

&&

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

A low currently on the Bering side of the Aleutians between Adak
and Atka will be weakening into tonight as its occluded front
advances northeastward into the coast. The low will quickly weaken
and dissipate by Monday evening. A second low moves into the
western Aleutians Tuesday, as its front moves into the central
Bering by late in the day. The front continues gradually moving
eastward into the eastern Bering on Wednesday, nearing the coast
Wednesday evening. The parent low remains over the central Bering
between the Pribilofs and Adak Wednesday evening. Along the front,
gale force winds are likely, and those winds have been increased
from the previous forecast package.

&&

.MARINE (Days 3 through 5: Wednesday through Friday)...

A weak area of low pressure in the Gulf Tuesday looks to dissipate
by Wednesday night. Winds and waves may be a bit higher,
although, nothing significant to note. A front associated with a
low over the central Aleutians will enter the western Gulf
Wednesday afternoon, bringing small craft winds and waves across
the Barren islands through Thursday.

A strengthening low across the Aleutians will bring gale force
winds and waves across the central Aleutians and the western and
central Bering Tuesday. Expect these to propagate north and east
as the low moves towards the southwest coast before dissipating
Thursday.

&&

.LONG TERM FORECAST (Days 4 through 7: Thursday through
Monday)...

Widespread rain across the Bering, Aleutian Chain and the
southwest coast will continue on Thursday as a very large complex
low remains over the Aleutians. This moisture will move into
Southcentral, however, forecast timing on this is currently a
challenge. The challenge remains with timing of the complex low
splitting into smaller lows and those smaller lows propagating
into the Gulf.

All in all, expect cooler temperatures, chances for rain and
increased winds through the extended forecast period as this
pattern looks to continue through then.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale 176.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...JW
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD
MARINE/LONG TERM...CK