Gale Warning 337, NWS Anchorage, AK

832 
FZAK52 PAFC 172358
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
358 PM AKDT Sun Apr 17 2022

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.

PKZ199-181230-
358 PM AKDT Sun Apr 17 2022
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 970 mb low 100 nm northwest of Adak moves over Unalaska Island  
at 980 mb Monday afternoon and then moves 150 nm southeast of Sand
Point Tuesday afternoon at 987 mb. 

$$

PKZ150-181230-
South of the AK Peninsula Sitkinak to Castle Cape-
358 PM AKDT Sun Apr 17 2022

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

.TONIGHT...SE wind 30 kt. Seas 10 ft.
.MON...SE wind 35 kt. Seas 12 ft.
.MON NIGHT...E wind 35 kt. Seas 15 ft.
.TUE...E wind 30 kt. Seas 16 ft.
.TUE NIGHT...E wind 25 kt. Seas 16 ft.
.WED...E wind 30 kt. Seas 13 ft.
.THU...SE wind 35 kt. Seas 14 ft.
.FRI...E wind 25 kt. Seas 17 ft.

$$

PKZ155-181230-
South of the AK Peninsula Castle Cape to Cape Sarichef-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 45 kt. From the Shumagin Islands E, SE wind 30
kt increasing to 40 kt after midnight. Seas 11 ft building to 16 ft 
after midnight. Rain.
.MON...SE wind 45 kt. Seas 16 ft. Rain.
.MON NIGHT...S wind 30 kt except E 40 kt from the Shumagin Islands 
E. Seas 20 ft. Rain.
.TUE...NE wind 30 kt. Seas 19 ft.
.TUE NIGHT...NE wind 25 kt. Seas 17 ft.
.WED...E wind 35 kt. Seas 13 ft.
.THU...SE wind 35 kt. Seas 19 ft.
.FRI...W wind 35 kt. Seas 13 ft.

$$

PKZ160-181230-
Bristol Bay-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 35 kt. Seas 7 ft.
.MON...E wind 35 kt. Seas 8 ft.
.MON NIGHT...E wind 35 kt. Seas 7 ft.
.TUE...E wind 30 kt. Seas 6 ft.
.TUE NIGHT...E wind 20 kt. Seas 5 ft.
.WED...E wind 30 kt. Seas 5 ft.
.THU THROUGH FRI...NE wind 35 kt. Seas 7 ft.

$$

PKZ165-181230-
Port Heiden to Cape Sarichef-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 45 kt. From Port Moller E, SE wind 35 kt
increasing to 45 kt after midnight. Seas 11 ft.
.MON...E wind 40 kt. Seas 11 ft. Rain.
.MON NIGHT...E wind 40 kt. Seas 11 ft. Rain.
.TUE...E wind 30 kt. Seas 14 ft.
.TUE NIGHT...E wind 25 kt. Seas 12 ft.
.WED...SE wind 35 kt. Seas 10 ft.
.THU...NE wind 35 kt. Seas 12 ft.
.FRI...N wind 30 kt. Seas 9 ft.

$$

PKZ170-181230-
Cape Sarichef to Nikolski Bering Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING TONIGHT AND MONDAY NIGHT...

.TONIGHT...SE wind 50 kt. Seas 15 ft. Rain.
.MON...SE wind 30 kt becoming N in the afternoon. Seas 11 ft.
Rain.
.MON NIGHT...NW wind 50 kt except NW 25 kt from Unalaska E. Gusts to
65 kt. Seas 23 ft. Rain with snow.
.TUE...NW wind 45 kt. Seas 23 ft.
.TUE NIGHT...NW wind 30 kt. Seas 15 ft.
.WED...E wind 35 kt. Seas 10 ft.
.THU THROUGH FRI...NW wind 35 kt. Seas 14 ft.

$$

PKZ171-181230-
Unalaska Bay-
358 PM AKDT Sun Apr 17 2022

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

.TONIGHT...SE wind 45 kt diminishing to 25 kt after midnight. Seas
7 ft subsiding to 3 ft after midnight. Rain and snow.
.MON...SE wind 15 kt becoming NW in the afternoon. Seas 3 ft.
Rain.
.MON NIGHT...W wind 20 kt becoming NW 40 kt after midnight. Seas
3 ft building to 5 ft after midnight. Rain and snow.
.TUE...NW wind 45 kt. Seas 7 ft.
.TUE NIGHT...NW wind 20 kt. Seas 7 ft.
.WED...E wind 30 kt. Seas 5 ft.
.THU...N wind 25 kt. Seas 7 ft.
.FRI...NW wind 30 kt. Seas 10 ft.

$$

PKZ172-181230-
Cape Sarichef to Nikolski Pacific Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING MONDAY NIGHT...

.TONIGHT...S wind 45 kt diminishing to 25 kt after midnight. Seas
17 ft. Rain.
.MON...W wind 30 kt increasing to 40 kt in the afternoon. Seas
23 ft. Rain.
.MON NIGHT...W wind 50 kt. Gusts to 65 kt. Seas 25 ft. Rain.
.TUE...W wind 50 kt. Seas 24 ft.
.TUE NIGHT...NW wind 40 kt. Seas 19 ft.
.WED...E wind 35 kt. Seas 14 ft.
.THU...W wind 35 kt. Seas 18 ft.
.FRI...W wind 35 kt. Seas 12 ft.

$$

PKZ173-181230-
Nikolski to Seguam Island Bering Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...S wind 25 kt becoming W after midnight. Seas 11 ft. Rain.
.MON...NW wind 50 kt. Gusts to 65 kt. Seas 23 ft. Rain.
.MON NIGHT...NW wind 50 kt. Gusts to 65 kt. Seas 24 ft.
.TUE...W wind 45 kt. Seas 20 ft.
.TUE NIGHT...NW wind 35 kt. Seas 17 ft.
.WED...NE wind 35 kt. Seas 12 ft.
.THU...NW wind 40 kt. Seas 15 ft.
.FRI...W wind 35 kt. Seas 13 ft.

$$

PKZ174-181230-
Nikolski to Seguam Island Pacific Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...W wind 35 kt. Seas 17 ft building to 23 ft after
midnight. Rain.
.MON...W wind 50 kt. Gusts to 65 kt. Seas 29 ft. Rain.
.MON NIGHT...W wind 50 kt. Gusts to 65 kt. Seas 29 ft.
.TUE...W wind 45 kt. Seas 22 ft.
.TUE NIGHT...NW wind 40 kt. Seas 19 ft.
.WED...E wind 40 kt. Seas 15 ft.
.THU...W wind 40 kt. Seas 18 ft.
.FRI...W wind 40 kt. Seas 13 ft.

$$

PKZ175-181230-
Seguam Island to Adak Bering Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING THROUGH MONDAY...

.TONIGHT...W wind 40 kt becoming NW 50 kt after midnight. Gusts to 65
kt. Seas 9 ft building to 20 ft after midnight.
.MON...NW wind 50 kt. Gusts to 65 kt. Seas 21 ft.
.MON NIGHT...W wind 45 kt. Seas 20 ft subsiding to 15 ft after
midnight.
.TUE...W wind 40 kt. Seas 15 ft.
.TUE NIGHT...SW wind 25 kt. Seas 12 ft.
.WED...NE wind 35 kt. Seas 11 ft.
.THU...W wind 35 kt. Seas 13 ft.
.FRI...W wind 30 kt. Seas 13 ft.

$$

PKZ176-181230-
Seguam Island to Adak Pacific Side-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING THROUGH MONDAY...

.TONIGHT...W wind 50 kt. Gusts to 65 kt. Seas 29 ft.
.MON...NW wind 50 kt. Gusts to 65 kt. Seas 28 ft.
.MON NIGHT...W wind 45 kt. Seas 21 ft.
.TUE...W wind 40 kt. Seas 17 ft.
.TUE NIGHT...SW wind 25 kt. Seas 11 ft.
.WED...NE wind 40 kt. Seas 15 ft.
.THU...W wind 40 kt. Seas 16 ft.
.FRI...W wind 35 kt. Seas 14 ft.

$$

PKZ177-181230-
Adak to Kiska-
358 PM AKDT Sun Apr 17 2022

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 50 kt. Gusts to 65 kt. Seas 21 ft Bering side... 
30 ft Pac side.
.MON...NW wind 40 kt. Seas 21 ft.
.MON NIGHT...W wind 30 kt. Seas 14 ft.
.TUE...W wind 30 kt. Seas 13 ft.
.TUE NIGHT...SE wind 25 kt. Seas 9 ft.
.WED...N wind 35 kt. Seas 13 ft.
.THU...W wind 35 kt. Seas 12 ft.
.FRI...W wind 30 kt. Seas 12 ft.

$$

PKZ178-181230-
Kiska to Attu-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 40 kt. Seas 24 ft.
.MON...W wind 30 kt. Seas 16 ft.
.MON NIGHT...W wind 30 kt. Seas 13 ft.
.TUE...SW wind 20 kt. Seas 11 ft.
.TUE NIGHT...SE wind 20 kt. Seas 7 ft.
.WED...NW wind 30 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 10 ft.
.FRI...SW wind 25 kt. Seas 10 ft.

$$

PKZ179-181230-
Pribilof Islands Near Shore Waters-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 45 kt. Seas 18 ft. Snow and rain.
.MON...E wind 30 kt. Seas 15 ft. Rain and snow.
.MON NIGHT...NE wind 25 kt. Seas 12 ft. Snow and rain.
.TUE...NE wind 25 kt. Seas 12 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 8 ft.
.WED...NE wind 30 kt. Seas 8 ft.
.THU...N wind 30 kt. Seas 11 ft.
.FRI...NW wind 30 kt. Seas 8 ft.

$$

PKZ180-181230-
Kuskokwim Delta and Etolin Strait-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E wind 40 kt. Seas 12 ft.
.MON...E wind 40 kt. Seas 13 ft.
.MON NIGHT...E wind 40 kt. Seas 13 ft.
.TUE...NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...NE wind 20 kt. Seas 8 ft.
.WED...E wind 30 kt. Seas 7 ft.
.THU...NE wind 40 kt. Seas 10 ft.
.FRI...N wind 30 kt. Seas 7 ft.

$$

PKZ181-181230-
North and West of Nunivak Island-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 35 kt. Seas in ice free waters 10 ft.
.MON...E wind 35 kt. Seas in ice free waters 11 ft.
.MON NIGHT...E wind 30 kt. Seas in ice free waters 10 ft.
.TUE...NE wind 25 kt. Seas in ice free waters 6 ft.
.TUE NIGHT...Variable wind 10 kt. Seas in ice free waters 3 ft.
.WED...E wind 20 kt. Seas in ice free waters 3 ft.
.THU...NE wind 30 kt. Seas in ice free waters 5 ft.
.FRI...N wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ185-181230-
Saint Matthew Island Waters-
358 PM AKDT Sun Apr 17 2022

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 35 kt. Seas in ice free waters 7 ft. Snow.
.MON...E wind 35 kt E of Saint Matthew Island...NE 25 kt W of
Saint Matthew Island. Seas in ice free waters 11 ft. Snow.
.MON NIGHT...E wind 30 kt. Seas in ice free waters 10 ft. Snow.
.TUE...NE wind 20 kt. Seas in ice free waters 7 ft.
.TUE NIGHT...Variable wind 10 kt. Seas in ice free waters 4 ft.
.WED...NE wind 20 kt. Seas in ice free waters 4 ft.
.THU...N wind 25 kt. Seas in ice free waters 5 ft.
.FRI...NW wind 25 kt. Seas in ice free waters 5 ft.

$$

827 
FZAK52 PAFC 181159
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
359 AM AKDT Mon Apr 18 2022

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.

PKZ199-190100-
359 AM AKDT Mon Apr 18 2022
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 mb low 50 nm southeast of Unalaska on Mon afternoon moves 
to 50 nm southwest of Cold Bay at 983 mb by Tue morning and then 
moves 120 nm south of Cold Bay Tuesday afternoon at 991 mb.

$$

PKZ150-190100-
South of the AK Peninsula Sitkinak to Castle Cape-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 35 kt. Seas 13 ft.
.TONIGHT...SE wind 35 kt. Seas 16 ft.
.TUE...E wind 30 kt. Seas 17 ft.
.TUE NIGHT...E wind 25 kt. Seas 15 ft.
.WED...E wind 25 kt. Seas 13 ft.
.THU...E wind 30 kt. Seas 12 ft.
.FRI...E wind 20 kt. Seas 13 ft.

$$

PKZ155-190100-
South of the AK Peninsula Castle Cape to Cape Sarichef-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 40 kt. Seas 17 ft. Rain.
.TONIGHT...SE wind 30 kt becoming S 20 kt after midnight. From the
Shumagin Islands E, SE wind 35 kt. Seas 20 ft. Rain.
.TUE...W wind 20 kt becoming NE in the afternoon. From the
Shumagin Islands E, E wind 30 kt. Seas 19 ft.
.TUE NIGHT...NE wind 25 kt. Seas 15 ft.
.WED THROUGH THU...E wind 30 kt. Seas 13 ft.
.FRI...NW wind 20 kt. Seas 12 ft.

$$

PKZ160-190100-
Bristol Bay-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 35 kt. Seas 8 ft.
.TONIGHT...E wind 35 kt. Seas 8 ft.
.TUE...E wind 30 kt. Seas 6 ft.
.TUE NIGHT...E wind 15 kt. Seas 4 ft.
.WED THROUGH THU...E wind 25 kt. Seas 4 ft.
.FRI...NE wind 20 kt. Seas 3 ft.

$$

PKZ165-190100-
Port Heiden to Cape Sarichef-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 45 kt. Seas 12 ft. Rain.
.TONIGHT...E wind 35 kt. Seas 12 ft. Rain showers.
.TUE...E wind 30 kt. Seas 13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 11 ft.
.WED THROUGH THU...E wind 30 kt. Seas 8 ft.
.FRI...N wind 20 kt. Seas 7 ft.

$$

PKZ170-190100-
Cape Sarichef to Nikolski Bering Side-
359 AM AKDT Mon Apr 18 2022

...STORM WARNING TONIGHT AND TUESDAY...

.TODAY...S wind 30 kt becoming NW in the afternoon. Seas 11 ft.
Rain.
.TONIGHT...W wind 50 kt except NW 25 kt from Unalaska E. Seas 23
ft. Rain and snow.
.TUE...NW wind 50 kt diminishing to 40 kt in the afternoon. From
Unalaska E, NW wind 25 kt. Seas 23 ft. Rain.
.TUE NIGHT...N wind 30 kt. Seas 14 ft.
.WED...E wind 30 kt. Seas 8 ft.
.THU...NE wind 30 kt. Seas 9 ft.
.FRI...NW wind 20 kt. Seas 8 ft.

$$

PKZ171-190100-
Unalaska Bay-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...S wind 15 kt becoming NW in the afternoon. Seas 2 ft.
Rain.
.TONIGHT...W wind 25 kt increasing to 35 kt after midnight. Seas
5 ft. Rain and snow.
.TUE...NW wind 35 kt. Seas 5 ft building to 10 ft in the
afternoon. Rain showers and snow.
.TUE NIGHT...NW wind 20 kt. Seas 7 ft.
.WED...E wind 25 kt. Seas 4 ft.
.THU...NE wind 25 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 5 ft.

$$

PKZ172-190100-
Cape Sarichef to Nikolski Pacific Side-
359 AM AKDT Mon Apr 18 2022

...STORM WARNING TONIGHT AND TUESDAY...

.TODAY...SW wind 25 kt becoming W 40 kt in the afternoon. Seas
24 ft. Rain.
.TONIGHT...W wind 50 kt. Seas 27 ft. Rain.
.TUE...W wind 50 kt diminishing to 40 kt in the afternoon. Seas 25 
ft.
.TUE NIGHT...NW wind 35 kt. Seas 18 ft.
.WED...E wind 35 kt. Seas 12 ft.
.THU...NE wind 30 kt. Seas 13 ft.
.FRI...W wind 25 kt. Seas 12 ft.

$$

PKZ173-190100-
Nikolski to Seguam Island Bering Side-
359 AM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TONIGHT...

.TODAY...NW wind increasing to 50 kt in the afternoon. Seas 22 ft. 
Rain.
.TONIGHT...W wind 50 kt. Seas 24 ft.
.TUE...NW wind 45 kt. Seas 22 ft.
.TUE NIGHT...NW wind 35 kt. Seas 16 ft.
.WED...NE wind 30 kt. Seas 9 ft.
.THU...N wind 30 kt. Seas 11 ft.
.FRI...W wind 25 kt. Seas 9 ft.

$$

PKZ174-190100-
Nikolski to Seguam Island Pacific Side-
359 AM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TONIGHT...

.TODAY...W wind increasing to 50 kt in the afternoon. Seas 30 ft. 
Rain.
.TONIGHT...W wind 50 kt. Seas 30 ft.
.TUE...W wind 45 kt. Seas 24 ft.
.TUE NIGHT...NW wind 35 kt. Seas 19 ft.
.WED...E wind 40 kt. Seas 13 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 13 ft.

$$

PKZ175-190100-
Seguam Island to Adak Bering Side-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TODAY...NW wind 45 kt. Seas 21 ft.
.TONIGHT...W wind 45 kt. Seas 20 ft.
.TUE...NW wind 40 kt. Seas 16 ft.
.TUE NIGHT...N wind 25 kt. Seas 11 ft.
.WED...NE wind 35 kt. Seas 11 ft.
.THU...NW wind 30 kt. Seas 11 ft.
.FRI...W wind 25 kt. Seas 8 ft.

$$

PKZ176-190100-
Seguam Island to Adak Pacific Side-
359 AM AKDT Mon Apr 18 2022

...STORM WARNING TODAY...

.TODAY...NW wind 50 kt. Seas 29 ft.
.TONIGHT...W wind 45 kt. Seas 21 ft.
.TUE...W wind 40 kt diminishing to 30 kt in the afternoon. Seas
18 ft.
.TUE NIGHT...SW wind 25 kt. Seas 11 ft.
.WED...NE wind 45 kt. Seas 17 ft.
.THU...NW wind 35 kt. Seas 15 ft.
.FRI...W wind 30 kt. Seas 9 ft.

$$

PKZ177-190100-
Adak to Kiska-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 40 kt. Seas 21 ft.
.TONIGHT...W wind 35 kt. Seas 15 ft.
.TUE...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
14 ft.
.TUE NIGHT...SE wind 30 kt. Seas 7 ft.
.WED...N wind 45 kt. Seas 15 ft.
.THU...W wind 35 kt. Seas 12 ft.
.FRI...W wind 25 kt. Seas 8 ft.

$$

PKZ178-190100-
Kiska to Attu-
359 AM AKDT Mon Apr 18 2022

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...W wind 30 kt. Seas 17 ft.
.TONIGHT...W wind 30 kt. Seas 14 ft.
.TUE...SW wind 20 kt. Seas 11 ft.
.TUE NIGHT...SE wind 20 kt. Seas 7 ft.
.WED...N wind 25 kt. Seas 8 ft.
.THU...W wind 25 kt. Seas 8 ft.
.FRI...SW wind 20 kt. Seas 10 ft.

$$

PKZ179-190100-
Pribilof Islands Near Shore Waters-
359 AM AKDT Mon Apr 18 2022

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TODAY...E wind 30 kt. Seas 15 ft. Rain and snow.
.TONIGHT...E wind 25 kt. Seas 13 ft. Snow and rain.
.TUE...NE wind 25 kt. Seas 12 ft. Snow and rain.
.TUE NIGHT...NE wind 15 kt. Seas 9 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 7 ft.
.FRI...NW wind 15 kt. Seas 7 ft.

$$

PKZ180-190100-
Kuskokwim Delta and Etolin Strait-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 40 kt. Seas 14 ft.
.TONIGHT...E wind 35 kt. Seas 14 ft.
.TUE...E wind 30 kt. Seas 11 ft.
.TUE NIGHT...N wind 20 kt. Seas 8 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 6 ft.
.FRI...NE wind 20 kt. Seas 4 ft.

$$

PKZ181-190100-
North and West of Nunivak Island-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Seas in ice free waters 12 ft.
.TONIGHT...E wind 30 kt. Seas in ice free waters 10 ft.
.TUE...NE wind 25 kt diminishing to 15 kt in the afternoon. Seas
in ice free waters 8 ft.
.TUE NIGHT...Variable wind 10 kt. Seas in ice free waters 3 ft.
.WED THROUGH FRI...N wind 20 kt. Seas in ice free waters 3 ft.

$$

PKZ185-190100-
Saint Matthew Island Waters-
359 AM AKDT Mon Apr 18 2022

...GALE WARNING TODAY...

.TODAY...E wind 35 kt E of Saint Matthew Island...NE 25 kt W of
Saint Matthew Island. Seas in ice free waters 12 ft. Snow.
.TONIGHT...E wind 25 kt. Seas in ice free waters 11 ft. Snow.
.TUE...NE wind 20 kt in the morning becoming variable 10 kt. Seas
in ice free waters 8 ft.
.TUE NIGHT...Variable wind 10 kt. Seas in ice free waters 4 ft.
.WED...NE wind 15 kt. Seas in ice free waters 3 ft.
.THU...N wind 20 kt. Seas in ice free waters 4 ft.
.FRI...N wind 15 kt. Seas in ice free waters 4 ft.

$$

150 
FZAK52 PAFC 182238
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
238 PM AKDT Mon Apr 18 2022

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.

PKZ199-191130-
238 PM AKDT Mon Apr 18 2022
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 979 mb low located 35 nm South of Cape Sarichef moves along the
front into the North Pacific weakening to 985 mb by Wed 
afternoon. A 996 mb South Kamchatka low and a 1006 mb North 
Pacific low merge to form a 978 mb low 197 nm South of Kiska Wed 
morning. This low strengthens to 967 mb as it moves to 136 nm 
South of Kiska and its front moves over the Western Aleutians for 
Wed afternoon.

$$

PKZ150-191130-
South of the AK Peninsula Sitkinak to Castle Cape-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...E wind 35 kt. Seas 16 ft.
.TUE...E wind 35 kt. Seas 17 ft.
.TUE NIGHT...E wind 25 kt. Seas 15 ft.
.WED...E wind 15 kt. Seas 13 ft.
.WED NIGHT...SE wind 25 kt. Seas 9 ft.
.THU...E wind 35 kt. Seas 12 ft.
.FRI...E wind 20 kt. Seas 13 ft.
.SAT...N wind 20 kt. Seas 8 ft.

$$

PKZ155-191130-
South of the AK Peninsula Castle Cape to Cape Sarichef-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 30 kt becoming S 20 kt after midnight. From the
Shumagin Islands E, SE wind 40 kt. Seas 19 ft. Rain.
.TUE...E wind 20 kt except E 30 kt from the Shumagin Islands E.
Seas 19 ft.
.TUE NIGHT...NE wind 25 kt. Seas 16 ft.
.WED...E wind 15 kt. Seas 12 ft.
.WED NIGHT...SE wind 30 kt. Seas 9 ft.
.THU...E wind 35 kt. Seas 14 ft.
.FRI...NW wind 20 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 8 ft.

$$

PKZ160-191130-
Bristol Bay-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas 7 ft.
.TUE...E wind 30 kt. Seas 6 ft.
.TUE NIGHT...NE wind 15 kt diminishing to 10 kt after midnight.
Seas 4 ft.
.WED...Variable wind less than 10 kt. Seas 3 ft.
.WED NIGHT...E wind 20 kt. Seas 3 ft.
.THU...E wind 25 kt. Seas 5 ft.
.FRI...NE wind 20 kt. Seas 3 ft.
.SAT...N wind 15 kt. Seas 4 ft.

$$

PKZ165-191130-
Port Heiden to Cape Sarichef-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...E wind 40 kt. Seas 12 ft. Rain showers.
.TUE...E wind 35 kt. Seas 13 ft.
.TUE NIGHT...NE wind 20 kt. Seas 11 ft.
.WED...SE wind 15 kt. Seas 6 ft.
.WED NIGHT...E wind 30 kt. Seas 6 ft.
.THU...E wind 35 kt. Seas 11 ft.
.FRI...N wind 20 kt. Seas 7 ft.
.SAT...NW wind 20 kt. Seas 4 ft.

$$

PKZ170-191130-
Cape Sarichef to Nikolski Bering Side-
238 PM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TUESDAY...

.TONIGHT...NW wind 50 kt except NW 25 kt from Unalaska E. Seas
22 ft. Rain and snow.
.TUE...NW wind 50 kt diminishing to 40 kt in the afternoon. From
Unalaska E, N wind 20 kt. Seas 22 ft. Rain.
.TUE NIGHT...N wind 30 kt diminishing to 15 kt after midnight.
Seas 13 ft.
.WED...E wind 25 kt. Seas 8 ft.
.WED NIGHT...E wind 30 kt. Seas 10 ft.
.THU...NE wind 30 kt. Seas 11 ft.
.FRI...NW wind 20 kt. Seas 8 ft.
.SAT...W wind 25 kt. Seas 6 ft.

$$

PKZ171-191130-
Unalaska Bay-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 25 kt increasing to 35 kt after midnight. Seas
5 ft. Rain and snow.
.TUE...NW wind 35 kt diminishing to 20 kt in the afternoon. Seas
10 ft. Rain and snow.
.TUE NIGHT...NW wind 20 kt diminising to 10 kt after midnight. Seas 
7 ft.
.WED...SE wind 20 kt. Seas 3 ft.
.WED NIGHT...E wind 30 kt. Seas 5 ft.
.THU...NE wind 30 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 4 ft.

$$

PKZ172-191130-
Cape Sarichef to Nikolski Pacific Side-
238 PM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TUESDAY...

.TONIGHT...W wind 50 kt. Seas 25 ft. Rain.
.TUE...W wind 50 kt diminishing to 40 kt in the afternoon. Seas 24 
ft.
.TUE NIGHT...NW wind 35 kt becoming N 20 kt after midnight. Seas
16 ft.
.WED...E wind 20 kt. Seas 9 ft.
.WED NIGHT...E wind 35 kt. Seas 11 ft.
.THU...SE wind 35 kt. Seas 13 ft.
.FRI...W wind 25 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 8 ft.

$$

PKZ173-191130-
Nikolski to Seguam Island Bering Side-
238 PM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TUESDAY...

.TONIGHT...W wind 50 kt. Seas 23 ft.
.TUE...NW wind 50 kt diminishing to 40 kt in the afternoon. Seas 22 
ft.
.TUE NIGHT...NW wind 30 kt diminishing to 20 kt after midnight.
Seas 15 ft.
.WED...E wind 30 kt. Seas 8 ft.
.WED NIGHT...E wind 35 kt. Seas 11 ft.
.THU...N wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 8 ft.

$$

PKZ174-191130-
Nikolski to Seguam Island Pacific Side-
238 PM AKDT Mon Apr 18 2022

...STORM WARNING THROUGH TUESDAY...

.TONIGHT...W wind 50 kt. Seas 29 ft.
.TUE...NW wind 50 kt diminishing to 45 kt in the afternoon. Seas 23 
ft.
.TUE NIGHT...NW wind 40 kt diminishing to 20 kt after midnight.
Seas 18 ft subsiding to 12 ft after midnight.
.WED...SE wind 35 kt. Seas 9 ft.
.WED NIGHT...SE wind 40 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 17 ft.
.FRI...W wind 30 kt. Seas 11 ft.
.SAT...W wind 25 kt. Seas 8 ft.

$$

PKZ175-191130-
Seguam Island to Adak Bering Side-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 45 kt. Seas 20 ft.
.TUE...NW wind 40 kt. Seas 15 ft.
.TUE NIGHT...NW wind 25 kt becoming E after midnight. Seas 11 ft.
.WED...E wind 40 kt. Seas 11 ft.
.WED NIGHT...NE wind 35 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI THROUGH SAT...W wind 25 kt. Seas 7 ft.

$$

PKZ176-191130-
Seguam Island to Adak Pacific Side-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 45 kt. Seas 21 ft.
.TUE...W wind 40 kt diminishing to 30 kt in the afternoon. Seas 18 
ft.
.TUE NIGHT...W wind 25 kt becoming SE after midnight. Seas 11 ft.
.WED...E wind 40 kt. Seas 13 ft.
.WED NIGHT...NW wind 35 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 16 ft.
.FRI...W wind 30 kt. Seas 9 ft.
.SAT...W wind 25 kt. Seas 8 ft.

$$

PKZ177-191130-
Adak to Kiska-
238 PM AKDT Mon Apr 18 2022

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

.TONIGHT...W wind 35 kt. Seas 15 ft.
.TUE...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
13 ft.
.TUE NIGHT...SE wind 20 kt becoming E 40 kt after midnight. Seas
8 ft. Rain and snow.
.WED...E wind 45 kt. Seas 16 ft.
.WED NIGHT...N wind 35 kt. Seas 16 ft.
.THU...NW wind 35 kt. Seas 15 ft.
.FRI...W wind 25 kt. Seas 8 ft.
.SAT...SW wind 25 kt. Seas 9 ft.

$$

PKZ178-191130-
Kiska to Attu-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 14 ft.
.TUE...SW wind 20 kt. Seas 10 ft.
.TUE NIGHT...SE wind 25 kt becoming E 35 kt after midnight. Seas
8 ft. Rain and snow.
.WED...NE wind 40 kt. Seas 17 ft.
.WED NIGHT...N wind 35 kt. Seas 16 ft.
.THU...W wind 25 kt. Seas 12 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT...S wind 25 kt. Seas 13 ft.

$$

PKZ179-191130-
Pribilof Islands Near Shore Waters-
238 PM AKDT Mon Apr 18 2022

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

.TONIGHT...NE wind 25 kt. Seas 12 ft. Snow and rain.
.TUE...NE wind 25 kt diminishing to 15 kt in the afternoon. Seas 12 
ft. Rain.
.TUE NIGHT...N wind 15 kt. Seas 9 ft.
.WED...E wind 20 kt. Seas 7 ft.
.WED NIGHT...E wind 25 kt. Seas 8 ft.
.THU...NE wind 30 kt. Seas 11 ft.
.FRI...NW wind 15 kt. Seas 7 ft.
.SAT...NW wind 25 kt. Seas 5 ft.

$$

PKZ180-191130-
Kuskokwim Delta and Etolin Strait-
238 PM AKDT Mon Apr 18 2022

...GALE WARNING TONIGHT...

.TONIGHT...E wind 40 kt. Seas 13 ft.
.TUE...NE wind 30 kt. Seas 10 ft.
.TUE NIGHT...N wind 20 kt becoming N 10 kt after midnight. Seas 7 
ft.
.WED...E wind 10 kt. Seas 4 ft.
.WED NIGHT...E wind 20 kt. Seas 4 ft.
.THU...E wind 30 kt. Seas 8 ft.
.FRI...NE wind 20 kt. Seas 4 ft.
.SAT...NW wind 15 kt. Seas 3 ft.

$$

PKZ181-191130-
North and West of Nunivak Island-
238 PM AKDT Mon Apr 18 2022

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E wind 30 kt. Seas in ice free waters 9 ft.
.TUE...NE wind 20 kt in the morning becoming N 10 kt. Seas in ice 
free waters 6 ft.
.TUE NIGHT...N wind 10 kt. Seas in ice free waters 3 ft.
.WED...Variable wind 10 kt. Seas in ice free waters 2 ft.
.WED NIGHT...NE wind 15 kt. Seas in ice free waters 2 ft.
.THU THROUGH FRI...N wind 20 kt. Seas in ice free waters 4 ft.
.SAT...NW wind 15 kt. Seas in ice free waters 3 ft.

$$

PKZ185-191130-
Saint Matthew Island Waters-
238 PM AKDT Mon Apr 18 2022

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E wind 25 kt. Seas in ice free waters 10 ft. Snow.
.TUE...NE wind 20 kt. Seas in ice free waters 7 ft.
.TUE NIGHT...Variable wind 10 kt E of Saint Matthew Island... S
15 kt W of Saint Matthew Island. Seas in ice free waters 4 ft.
.WED...Variable wind 10 kt. Seas in ice free waters 4 ft.
.WED NIGHT...NE wind 15 kt. Seas in ice free waters 3 ft.
.THU...NE wind 20 kt. Seas in ice free waters 4 ft.
.FRI...N wind 15 kt. Seas in ice free waters 4 ft.
.SAT...NW wind 20 kt. Seas in ice free waters 4 ft.

$$

447 
FZAK52 PAFC 191122
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
322 AM AKDT Tue Apr 19 2022

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.

PKZ199-200000-
322 AM AKDT Tue Apr 19 2022
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 987 mb low 160 nm south of Sand Point on Tue afternoon moves
into the North Pacific. A 976 mb low moves to 175 nm southwest of
Attu Island Wed morning and then to 200 nm south of Atka at 966 mb
by Thu morning.

$$

PKZ150-200000-
South of the AK Peninsula Sitkinak to Castle Cape-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 16 ft.
.TONIGHT...E wind 20 kt. Seas 15 ft.
.WED...E wind 10 kt. Seas 11 ft.
.WED NIGHT...SE wind 25 kt. Seas 8 ft.
.THU...E wind 35 kt. Seas 15 ft.
.FRI...E wind 30 kt. Seas 15 ft.
.SAT...N wind 15 kt. Seas 12 ft.

$$

PKZ155-200000-
South of the AK Peninsula Castle Cape to Cape Sarichef-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 20 kt except E 30 kt from the Shumagin Islands E.
Seas 17 ft.
.TONIGHT...NE wind 20 kt. Seas 15 ft.
.WED...E wind 15 kt. Seas 11 ft.
.WED NIGHT...SE wind 35 kt. Seas 11 ft.
.THU...E wind 40 kt. Seas 15 ft.
.FRI...N wind 20 kt. Seas 16 ft.
.SAT...NW wind 25 kt. Seas 11 ft.

$$

PKZ160-200000-
Bristol Bay-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E wind 25 kt. Seas 6 ft.
.TONIGHT...NE wind 15 kt becoming E 10 after midnight. Seas 4 ft.
.WED...SE wind 10 kt. Seas 3 ft.
.WED NIGHT...E wind 20 kt. Seas 3 ft.
.THU THROUGH FRI...NE wind 30 kt. Seas 7 ft.
.SAT...N wind 15 kt. Seas 4 ft.

$$

PKZ165-200000-
Port Heiden to Cape Sarichef-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...E wind 30 kt. Seas 13 ft.
.TONIGHT...NE wind 20 kt in the evening becoming variable 10 kt.
Seas 11 ft.
.WED...Variable wind 10 kt becoming SE 20 kt in the afternoon.
From Port Moller E, variable wind 10 kt. Seas 6 ft.
.WED NIGHT...E wind 30 kt. Seas 8 ft.
.THU...E wind 35 kt. Seas 13 ft.
.FRI...N wind 35 kt. Seas 11 ft.
.SAT...NW wind 20 kt. Seas 7 ft.

$$

PKZ170-200000-
Cape Sarichef to Nikolski Bering Side-
322 AM AKDT Tue Apr 19 2022

...GALE WARNING TODAY...

.TODAY...NW wind 45 kt except N 20 kt from Unalaska E. Seas 22 ft.
Rain.
.TONIGHT...N wind 30 kt diminishing to 15 kt after midnight. Seas
14 ft.
.WED...E wind 15 kt becoming SE 25 kt in the afternoon. Seas 7 ft.
.WED NIGHT...E wind 40 kt. Seas 12 ft.
.THU...NE wind 40 kt. Seas 13 ft.
.FRI...N wind 30 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 9 ft.

$$

PKZ171-200000-
Unalaska Bay-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 30 kt. Seas 10 ft. Rain and snow.
.TONIGHT...NW wind 20 kt. Seas 7 ft. Rain.
.WED...Variable wind less than 10 kt becoming SE 20 kt in the
afternoon. Seas 3 ft.
.WED NIGHT...SE wind 35 kt. Seas 5 ft.
.THU...E wind 35 kt. Seas 5 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ172-200000-
Cape Sarichef to Nikolski Pacific Side-
322 AM AKDT Tue Apr 19 2022

...STORM WARNING TODAY...

.TODAY...NW wind 50 kt. Gusts to 65 kt near Nikolski in the morning. 
Seas 24 ft.
.TONIGHT...NW wind 35 kt becoming N 20 kt after midnight. Seas
16 ft.
.WED...Variable wind 10 kt becoming SE 25 kt in the afternoon.
Seas 9 ft.
.WED NIGHT...SE wind 40 kt. Seas 13 ft.
.THU...S wind 35 kt. Seas 15 ft.
.FRI...NW wind 25 kt. Seas 15 ft.
.SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ173-200000-
Nikolski to Seguam Island Bering Side-
322 AM AKDT Tue Apr 19 2022

...GALE WARNING TODAY AND WEDNESDAY...

.TODAY...NW wind 45 kt. Seas 22 ft.
.TONIGHT...NW wind 30 kt diminishing to 15 kt after midnight. Seas
15 ft subsiding to 10 ft after midnight.
.WED...E wind 20 kt becoming SE 35 kt in the afternoon. Seas 9 ft.
Rain.
.WED NIGHT...E wind 40 kt. Seas 12 ft.
.THU...NE wind 30 kt. Seas 12 ft.
.FRI...NW wind 30 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 9 ft.

$$

PKZ174-200000-
Nikolski to Seguam Island Pacific Side-
322 AM AKDT Tue Apr 19 2022

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 45 kt. Seas 23 ft.
.TONIGHT...NW wind 35 kt diminishing to 20 kt after midnight. Seas
18 ft subsiding to 12 ft after midnight.
.WED...E wind 25 kt becoming SE 40 kt in the afternoon. Seas 11
ft. Rain.
.WED NIGHT...SE wind 40 kt. Seas 12 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 15 ft.
.SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ175-200000-
Seguam Island to Adak Bering Side-
322 AM AKDT Tue Apr 19 2022

...GALE WARNING TODAY AND WEDNESDAY...

.TODAY...NW wind 40 kt diminishing to 30 kt in the afternoon. Seas
16 ft.
.TONIGHT...NW wind 20 kt becoming E after midnight. Seas 10 ft.
.WED...E wind 45 kt. Seas 13 ft. Rain.
.WED NIGHT...NE wind 40 kt. Seas 13 ft.
.THU...N wind 30 kt. Seas 16 ft.
.FRI...NW wind 30 kt. Seas 16 ft.
.SAT...W wind 20 kt. Seas 9 ft.

$$

PKZ176-200000-
Seguam Island to Adak Pacific Side-
322 AM AKDT Tue Apr 19 2022

...GALE WARNING TODAY AND WEDNESDAY...

.TODAY...W wind 40 kt becoming NW 30 kt in the afternoon. Seas
18 ft.
.TONIGHT...W wind 20 kt becoming SE after midnight. Seas 10 ft.
.WED...E wind 45 kt. Seas 14 ft. Rain and snow.
.WED NIGHT...SW wind 25 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 15 ft.
.FRI...NW wind 30 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 8 ft.

$$

PKZ177-200000-
Adak to Kiska-
322 AM AKDT Tue Apr 19 2022

...STORM WARNING WEDNESDAY...

.TODAY...W wind 30 kt diminishing to 20 kt in the afternoon. Seas
13 ft.
.TONIGHT...SE wind 20 kt becoming E 40 kt after midnight. Seas 9
ft. Rain and snow.
.WED...E wind 50 kt. Seas 17 ft. Rain and snow.
.WED NIGHT...N wind 40 kt. Seas 16 ft.
.THU...NW wind 35 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 13 ft.
.SAT...SW wind 25 kt. Seas 7 ft.

$$

PKZ178-200000-
Kiska to Attu-
322 AM AKDT Tue Apr 19 2022

...STORM WARNING WEDNESDAY...

.TODAY...SW wind 20 kt. Seas 10 ft.
.TONIGHT...SE wind 20 kt becoming E 35 kt after midnight. Seas 8
ft. Rain and snow.
.WED...NE wind 50 kt E of Shemya. NE wind 30 kt W of Shemya.; Seas 
13 ft building to 18 ft in the afternoon. Rain and snow.
.WED NIGHT...N wind 45 kt. Seas 18 ft.
.THU...NW wind 30 kt. Seas 13 ft.
.FRI...W wind 20 kt. Seas 9 ft.
.SAT...S wind 30 kt. Seas 12 ft.

$$

PKZ179-200000-
Pribilof Islands Near Shore Waters-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NE wind 20 kt. Seas 12 ft. Rain and snow.
.TONIGHT...Variable wind 10 kt. Seas 9 ft.
.WED...Variable wind 10 kt becoming E 20 kt in the afternoon. Seas
6 ft.
.WED NIGHT...E wind 30 kt. Seas 9 ft.
.THU...NE wind 35 kt. Seas 13 ft.
.FRI...N wind 30 kt. Seas 13 ft.
.SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ180-200000-
Kuskokwim Delta and Etolin Strait-
322 AM AKDT Tue Apr 19 2022

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NE wind 30 kt. Seas 10 ft.
.TONIGHT...N wind 15 kt becoming variable 10 kt after midnight. Seas
7 ft.
.WED...S wind 10 kt. Seas 4 ft.
.WED NIGHT...E wind 20 kt. Seas 5 ft.
.THU...E wind 30 kt. Seas 10 ft.
.FRI...N wind 30 kt. Seas 10 ft.
.SAT...NW wind 20 kt. Seas 4 ft.

$$

PKZ181-200000-
North and West of Nunivak Island-
322 AM AKDT Tue Apr 19 2022

.TODAY...NE wind 20 kt in the morning becoming variable 10 kt.
Seas in ice free waters 6 ft.
.TONIGHT...Variable wind 10 kt. Seas in ice free waters 3 ft.
.WED...Variable wind 10 kt. Seas in ice free waters 2 ft.
.WED NIGHT...E wind 20 kt. Seas in ice free waters 3 ft.
.THU...NE wind 25 kt. Seas in ice free waters 6 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ185-200000-
Saint Matthew Island Waters-
322 AM AKDT Tue Apr 19 2022

.TODAY...NE wind 20 kt. Seas in ice free waters 7 ft. Snow
showers.
.TONIGHT...Variable wind 10 kt E of Saint Matthew Island...W 15 kt W
of Saint Matthew Island. Seas in ice free waters 5 ft.
.WED...Variable wind 10 kt. Seas in ice free waters 5 ft.
.WED NIGHT...NE wind 20 kt. Seas in ice free waters 4 ft.
.THU...NE wind 20 kt. Seas in ice free waters 4 ft.
.FRI...N wind 15 kt. Seas in ice free waters 4 ft.
.SAT...W wind 15 kt. Seas in ice free waters 3 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
512 PM AKDT Sat Apr 16 2022

.ANALYSIS AND UPPER LEVELS...

An upper-level ridge remains in place from the eastern Gulf of
Alaska north across Southcentral. A wide expanse of marine stratus
and stratocumulus is trapped underneath the ridge and extends
along the entirety of the Southcentral coast this afternoon. Rain
and low clouds also continue to stream toward Kodiak Island as a
shortwave moves northwestward, embedded in the flow around the
upper-level ridge. A weak shortwave is also dropping south from
the Yukon; however, there is little to define this feature other
than visible satellite imagery depicting the southward advancement
of mid and high level clouds across the Alaska Range.

Out west, the shortwave trough over Kodiak Island extends into
Bristol Bay and across the Southwest coast. Clouds and showers
linger for Bristol Bay, but diminish quickly over the Kuskokwim
Delta due to a drier, downsloping flow over the Kilbuck Mountains.

A decaying low continues to fill and weaken between Saint Paul and
Saint Matthew Islands. Scattered gales and rain showers persist
over the central and western Bering and Aleutians with this
system. A second extra-tropical low well south of Attu and Shemya
is the remnant of Typhoon Malakas. This feature is supported by a
160 kt jet streak and is continuing to tap into plenty of tropical
moisture as it begins to move toward the western Aleutians.

&&

.MODEL DISCUSSION...

Model guidance remains in good agreement with decent run to run
consistency through 12z Monday. After that time, models begin to
diverge with regard to the forward movement of a storm-force low
over the central and eastern Aleutians. The NAM/EC/GEM all stall
the surface low over Unimak Pass, while the GFS begins to track
the center of circulation to the southeast. By Tue 12z, all models
do indicate that this feature will begin to weaken and elongate
as it runs into a ridge downstream. Thus, even with the differences
in the position of the low, differences in the forecasted conditions
are not significant. All models hold onto some semblance of a
surface ridge over the northern Gulf and Southcentral Alaska.
However, weak upper-level waves will likely allow for clouds and
showers across these areas through the short-term.

&&

.AVIATION...
PANC...VFR and light winds will persist. There is the potential
for ceilings to drop below 5,000 ft, but remain VFR, by Sunday
morning as a weak upper-level trough moves south across the
region. Have opted against including a lower ceiling in the taf
for now because the upper level trough is so weak and not sure
there will be much impact on the low levels of the atmosphere.

&&

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

The main synoptic feature over Southcentral is associated with an
Arctic shortwave trough pushing southward from the AK-Yukon
Territory. Pressure gradient driven northerly winds will funnel
through the gaps and passes, including the Alaska Range/northern
Copper River Basin and Thompson Pass, with higher gusts at times.
Given the limited instability and snowpack in the mountains, only
shallow cumulus clouds are forming this afternoon over lower
elevations of the Copper River Basin. Would expect little or no
precipitation as the trough crosses inland areas of Southcentral.
However, as the shortwave moves further south into the coastal
waters, some showers are possible along the Kenai Peninsula and
Kodiak Island from Sunday through Monday. Otherwise, a ridge of
pressure will become reestablished over the mainland, with mostly
clear skies and seasonable temperatures through early next week.

&&

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

A fairly quiet weather pattern is expected to continue for
Southwest Alaska as upper level ridging gradually extends farther
southwestward across the area. This will allow for lingering rain
and snow showers to taper off Sunday night. Strong southeasterly
winds are expected across the coastal Kuskokwim Delta, Bristol Bay
and Alaska Peninsula Monday morning through Monday night as a low
pressure system passes to the distant west.

&&

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

An active pattern continues across the Bering/Aleutians over the
next couple of days as a strong low pressure system moves across
the area. This low will bring widespread storm force winds, both
ahead of the low (southeasterlies) and behind the low
(northwesterlies). The low will be vertically stacked with surface
pressure holding steady on Sunday. However, low level winds ahead
of the leading occluded front will continue to strengthen as it
pushes into a downstream ridge. The strongest core of winds will
cross the eastern Aleutians (including Dutch Harbor) during the
day Sunday and may reach the far southern Alaska Peninsula Sunday
evening before winds begin to diminish. Looking at some forecast
soundings for Dutch Harbor, warming up above the surface will lead
to formation of a temperature inversion between 3000 and 6000 ft,
while the sub-3000 ft layer looks weakly unstable. Based on this
profile, there is potential for mountain waves and trapping of
stronger winds, some of which could mix down to the surface.
Therefore, have decided to issue a High Wind Watch for the Eastern
Aleutians for gusts up to 75 mph. Have also included gusts up to
65 kt for bordering marine zones.

Meanwhile, there will be a core of storm force winds in cold air
advection on the back side of the low, crossing the central
Aleutians Sunday night through Monday. An upper level short-wave
will then drop into the back side of the low MOnday night as an
upstream ridge amplifies. This will cause low level northwesterlies
to strengthen Monday afternoon through Monday night. Thus, have
issued a high wind watch for the central Aleutians for winds up
to 75 mph.

Winds will diminish across the region Tuesday through Tuesday
night as ridging building in from both the east and the west
forces the low southward into the Pacific.

&&

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

Gulf of Alaska: Light winds and seas less than 8 ft will persist
through Wednesday for most of the Gulf. Areas south of Kodiak
Island will likely see small craft winds and seas approaching
14 ft from Tuesday morning through Wednesday afternoon as a front
grazes the Western Gulf. Another front pushes eastward across
the Gulf beginning Thursday, bringing a swath of gales and seas
as high as 20 ft.

Bering Sea: Elevated winds and seas along the central to eastern
Aleutians and Alaska Peninsula will diminish Tuesday as the
responsible storm exits across the North Pacific. Confidence is
increasing in the merging of two new storms along the Aleutians on
Wednesday, leading to one single very large and intense storm
Wednesday night. While confidence in the track of this storm and
location of strongest winds/highest seas is low, it looks
favorable for widespread gales with potential for smaller swaths
of storm force winds. This storm will progress eastward Wednesday
night and Thursday, so expect impacts along the Southwest Alaska
coastal waters.

&&

.Long Term Discussion (Days 4 through 7: Wednesday through
Saturday)...

With the blocking high that has brought mostly calm weather to
Southcentral gets minimized to a ridge over the northern portion
of Alaska, it is clear that a more active pattern is in store for
the extended. At this point, the extended looks to be dominated by
an anomalously deep upper low that will traverse Alaska from west
to east, first arriving along the western Aleutians Wednesday
morning, moving eastward towards the Alaska Peninsula by Saturday.
Looking to ensemble data for guidance as deterministic runs
remain variable in details, have noted that model ensembles
support the development of this storm low mid-week, but then
diverge in whether to bring the low straight towards the southwest
coastline and the Alaska Peninsula, or drop it southeast into the
western Gulf. This all seems to depend on whether the high
remains over northern Alaska, steering flow south- and east-ward,
or whether the strength on the transient ridge ahead of this low
strengthens as it moves over the Canadian mainland.

What’s clear is that Wednesday through Thursday will be active
for the Aleutians and Alaska Peninsula as the anomalously strong
low moves west to east, bringing the potential for moderate to
heavy precipitation, very strong winds, and high seas for areas
across the Bering Sea, the Aleutians, and Alaska Peninsula. To the
east, cool upper level temperatures drawn out of the interior and
weak lift around a weak low situated along the northern Gulf will
continue to support isolated to scattered showers across Southcentral
and interior portions of the Y-K Delta and Bristol Bay, especially
along valley locations where snow cover is lacking and afternoon
heating will be most effective. This weaker low will not stick
around long, however, as the deeper low over the Bering progresses
east, absorbing the weaker low, and reinforcing in strength
Thursday.

By Friday and Saturday, models divergence is pronounced enough
that it is unclear whether Southcentral and the Gulf or the
Southwest coastline will become affected by this deep low, with
portions of the forecast area becoming battered by its winds, rain
and high seas, depending on how/where the system tracks. Keeping
pattern recognition in play, it is more likely that the low tracks
into Southcentral and the Gulf, with more than one model ensemble
indicating this progression. Check back for forecast updates as
details of this stronger system become more apparent.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Watch 185 187.
MARINE...Storm Warning 170 171 172 173 174 175 176 177.
         Gale Warning 155 160 165 178 179 180 181.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...TM
SOUTHCENTRAL ALASKA...MF
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...ED/SB
MARINE/LONG TERM...KC/AB