Storm Warning 145, NWS Anchorage, AK

762 
FZAK52 PAFC 191244
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
344 AM AKST Sun Nov 19 2023

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.

PKZ199-200130-
344 AM AKST Sun Nov 19 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 946 mb Kamchatka low moves 200 nm northwest of Shemya at 948 mb
by Mon morning and then moves north across the Bering through Tue
morning. Its front moves east across the Bering through Mon 
night. A North Pacific low pushes a front into the western 
Aleutians by Tue morning.


$$

PKZ750-200130-
Sitkinak to Castle Cape out to 15 NM-
344 AM AKST Sun Nov 19 2023

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

.TODAY...N wind 20 kt. Seas 4 ft.
.TONIGHT...NE wind 25 kt. Seas 6 ft.
.MON...NE wind 25 kt. Seas 8 ft.
.MON NIGHT...NW wind 25 kt. Seas 6 ft.
.TUE...W wind 20 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 10 ft.
.THU...SE wind 20 kt. Seas 12 ft.

$$

PKZ751-200130-
Sitkinak to Castle Cape from 15 to 100 NM-
344 AM AKST Sun Nov 19 2023

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

.TODAY...N wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 30 kt. Seas 9 ft.
.MON...NE wind 30 kt. Seas 11 ft.
.MON NIGHT...NW wind 30 kt. Seas 16 ft.
.TUE...SW wind 25 kt. Seas 14 ft.
.WED...SE wind 30 kt. Seas 16 ft.
.THU...S wind 25 kt. Seas 20 ft.

$$

PKZ752-200130-
Castle Cape to Cape Tolstoi out to 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...N wind 15 kt. Seas 1 foot.
.TONIGHT...NE wind 20 kt. Seas 3 ft.
.MON...NE wind 15 kt in the morning becoming
variable 10 kt. Seas 4 ft.
.MON NIGHT...W wind 15 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 7 ft.
.WED...E wind 25 kt. Seas 13 ft.
.THU...SE wind 20 kt. Seas 11 ft.

$$

PKZ753-200130-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
344 AM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY MONDAY...

.TODAY...NE wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.MON...NE wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 12 ft.
.TUE...S wind 25 kt. Seas 13 ft.
.WED...SE wind 30 kt. Seas 19 ft.
.THU...SE wind 25 kt. Seas 20 ft.

$$

PKZ754-200130-
Cape Tolstoi to Cape Sarichef out to 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...Variable wind 10 kt. Seas 2 ft.
.TONIGHT...SE wind 20 kt. Seas 2 ft.
.MON...SE wind 20 kt. Seas 4 ft.
.MON NIGHT...S wind 20 kt. Seas 7 ft.
.TUE...SE wind 30 kt. Seas 8 ft.
.WED...E wind 30 kt. Seas 16 ft.
.THU...SE wind 20 kt. Seas 16 ft.

$$

PKZ755-200130-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...NE wind 15 kt. Seas 5 ft.
.TONIGHT...E wind 15 kt. Seas 4 ft.
.MON...SE wind 20 kt. Seas 7 ft.
.MON NIGHT...S wind 20 kt. Seas 13 ft.
.TUE...SE wind 35 kt. Seas 13 ft.
.WED...SE wind 35 kt. Seas 23 ft.
.THU...SE wind 30 kt. Seas 23 ft.

$$

PKZ756-200130-
Port Heiden to Nelson Lagoon out to 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...NE wind 15 kt. Seas 4 ft.
.TONIGHT...E wind 20 kt. Seas 4 ft.
.MON...SE wind 15 kt. Seas 3 ft.
.MON NIGHT...Variable wind 10 kt. Seas 3 ft.
.TUE...SE wind 20 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 7 ft.
.THU...SE wind 20 kt. Seas 4 ft.

$$

PKZ757-200130-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...E wind 20 kt. Seas 5 ft.
.MON...SE wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 5 ft.
.TUE...SE wind 20 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 11 ft.
.THU...E wind 20 kt. Seas 7 ft.

$$

PKZ758-200130-
Nelson Lagoon to Cape Sarichef out to 15 NM-
344 AM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY MONDAY...

.TODAY...E wind 15 kt. Seas 4 ft.
.TONIGHT...SE wind 20 kt. Seas 3 ft.
.MON...SE wind 25 kt. Seas 3 ft.
.MON NIGHT...SE wind 20 kt. Seas 5 ft.
.TUE...SE wind 25 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 4 ft.

$$

PKZ759-200130-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
344 AM AKST Sun Nov 19 2023

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

.TODAY...Variable wind 10 kt becoming SE 20 kt
in the afternoon. Seas 5 ft.
.TONIGHT...SE wind 25 kt. Seas 5 ft.
.MON...SE wind 25 kt. Seas 7 ft.
.MON NIGHT...SE wind 25 kt. Seas 7 ft.
.TUE...SE wind 25 kt. Seas 8 ft.
.WED...E wind 30 kt. Seas 12 ft.
.THU...E wind 25 kt. Seas 7 ft.

$$

PKZ770-200130-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...SE wind 20 kt increasing to 30 kt
in the afternoon. Seas 5 ft.
.TONIGHT...SE wind 40 kt. Seas 6 ft.
.MON...SE wind 35 kt. Seas 6 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 7 ft.
.TUE THROUGH WED...E wind 35 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 7 ft.

$$

PKZ772-200130-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...S wind 25 kt becoming SE 35 kt
in the afternoon. Seas 7 ft.
.TONIGHT...SE wind 40 kt. Seas 11 ft.
.MON...SE wind 40 kt diminishing to 30 kt
in the afternoon. Seas 12 ft.
.MON NIGHT...S wind 25 kt. Seas 10 ft.
.TUE...SE wind 30 kt. Seas 10 ft.
.WED...E wind 35 kt. Seas 13 ft.
.THU...E wind 20 kt. Seas 10 ft.

$$

PKZ771-200130-
Unalaska Bay-
344 AM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TODAY...S wind 10 kt becoming SE 25 kt
in the afternoon. Seas 3 ft.
.TONIGHT...SE wind 30 kt. Gusts to 40 kt. Seas 4 ft.
.MON...SE wind 30 kt. Gusts to 40 kt. Seas 4 ft. Rain with snow.
.MON NIGHT...S wind 20 kt. Seas 3 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 5 ft.
.THU...E wind 15 kt. Seas 2 ft.

$$

PKZ773-200130-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...SE wind 15 kt increasing to 30 kt
in the afternoon. Seas 5 ft.
.TONIGHT...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 35 kt. Seas 13 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 12 ft.
.TUE...SE wind 40 kt. Seas 11 ft.
.WED...E wind 35 kt. Seas 21 ft.
.THU...E wind 25 kt. Seas 21 ft.

$$

PKZ774-200130-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...E wind 15 kt becoming SE 25 kt
in the afternoon. Seas 5 ft.
.TONIGHT...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 35 kt. Seas 15 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 15 ft.
.TUE...SE wind 40 kt. Seas 14 ft.
.WED...SE wind 35 kt. Seas 24 ft.
.THU...SE wind 25 kt. Seas 24 ft.

$$

PKZ775-200130-
Nikolski to Seguam Bering Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...S wind 30 kt becoming SE 45 kt
in the afternoon. Seas 5 ft building to 10 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 16 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt
in the afternoon. Seas 14 ft. Rain.
.MON NIGHT...S wind 15 kt. Seas 10 ft.
.TUE...SE wind 40 kt. Seas 16 ft.
.WED...E wind 30 kt. Seas 16 ft.
.THU...NE wind 20 kt. Seas 15 ft.

$$

PKZ776-200130-
Nikolski to Seguam Bering Side from 15 to 85 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...S wind 35 kt increasing to 45 kt in the afternoon.
Seas 7 ft building to 12 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 17 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon.
Seas 15 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 11 ft.
.TUE...SE wind 40 kt. Seas 16 ft.
.WED...E wind 35 kt. Seas 16 ft.
.THU...NE wind 20 kt. Seas 13 ft.

$$

PKZ777-200130-
Nikolski to Seguam Pacfic Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...S wind 30 kt becoming SE 40 kt 
in the afternoon. Seas 5 ft building to 10 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 19 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 18 ft. Rain.
.MON NIGHT...SW wind 20 kt. Seas 14 ft.
.TUE...SE wind 40 kt. Seas 18 ft.
.WED...E wind 30 kt. Seas 23 ft.
.THU...NE wind 20 kt. Seas 23 ft.

$$

PKZ778-200130-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...SE wind 30 kt becoming S 40 kt in the afternoon. 
Seas 5 ft building to 10 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 14 ft building to 19 ft after
midnight. Rain.
.MON...S wind 35 kt diminishing to 20 kt in the afternoon.
Seas 19 ft. Rain.
.MON NIGHT...SW wind 20 kt. Seas 17 ft.
.TUE...SE wind 40 kt. Seas 19 ft.
.WED...SE wind 30 kt. Seas 24 ft.
.THU...NE wind 20 kt. Seas 24 ft.

$$

PKZ780-200130-
Seguam to Adak Bering Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...STORM WARNING TODAY...

.TODAY...S wind 50 kt. Seas 12 ft. Rain.
.TONIGHT...S wind 45 kt diminishing to 30 kt
after midnight. Seas 12 ft subsiding to 7 ft
after midnight. Rain.
.MON...S wind 30 kt. Seas 7 ft.
.MON NIGHT...S wind 20 kt. Seas 8 ft.
.TUE...E wind 40 kt. Seas 13 ft.
.WED...NE wind 30 kt. Seas 13 ft.
.THU...N wind 25 kt. Seas 12 ft.

$$

PKZ781-200130-
Seguam to Adak Bering Side from 15 to 85 NM-
344 AM AKST Sun Nov 19 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 55 kt. Seas 17 ft. Rain.
.TONIGHT...S wind 50 kt diminishing to 30 kt
after midnight. Seas 17 ft. Rain.
.MON...S wind 30 kt. Seas 13 ft.
.MON NIGHT...S wind 25 kt. Seas 13 ft.
.TUE...E wind 40 kt. Seas 17 ft.
.WED...NE wind 35 kt. Seas 17 ft.
.THU...N wind 30 kt. Seas 14 ft.

$$

PKZ782-200130-
Seguam to Adak Pacific Side out to 15 NM-
344 AM AKST Sun Nov 19 2023

...STORM WARNING TODAY...

.TODAY...SE wind 50 kt. Seas 12 ft building to 20 ft
in the afternoon. Rain.
.TONIGHT...S wind 45 kt diminishing to 30 kt 
after midnight. Seas 20 ft. Rain.
.MON...SW wind 25 kt. Seas 17 ft.
.MON NIGHT...S wind 25 kt. Seas 17 ft.
.TUE...E wind 40 kt. Seas 21 ft.
.WED...NE wind 30 kt. Seas 22 ft.
.THU...NW wind 25 kt. Seas 16 ft.

$$

PKZ783-200130-
Seguam to Adak Pacific Side from 15 to 75 NM-
344 AM AKST Sun Nov 19 2023

...STORM WARNING TODAY...

.TODAY...SE wind 50 kt. Seas 12 ft building to 20 ft
in the afternoon. Rain.
.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. 
Seas 21 ft. Rain.
.MON...SW wind 30 kt. Seas 22 ft.
.MON NIGHT...S wind 25 kt. Seas 22 ft.
.TUE...SE wind 45 kt. Seas 23 ft.
.WED...NE wind 30 kt. Seas 24 ft.
.THU...NW wind 30 kt. Seas 19 ft.

$$

PKZ784-200130-
Adak to Kiska Bering Side-
344 AM AKST Sun Nov 19 2023

...STORM WARNING TODAY...

.TODAY...S wind 60 kt diminishing to 50 kt 
in the afternoon. Seas 22 ft. Rain.
.TONIGHT...S wind 45 kt. Seas 23 ft. Rain.
.MON...SW wind 40 kt. Seas 23 ft. Rain showers.
.MON NIGHT...S wind 25 kt. Seas 18 ft.
.TUE...E wind 40 kt. Seas 16 ft.
.WED...N wind 30 kt. Seas 17 ft.
.THU...NW wind 30 kt. Seas 17 ft.

$$

PKZ785-200130-
Adak to Kiska Pacific Side-
344 AM AKST Sun Nov 19 2023

...STORM WARNING TODAY...

.TODAY...S wind 55 kt diminishing to 45 kt
in the afternoon. Seas 24 ft. Rain.
.TONIGHT...SW wind 40 kt. Seas 23 ft
building to 29 ft after midnight. Rain.
.MON...SW wind 40 kt diminishing to 30 kt
in the afternoon. Seas 29 ft.
.MON NIGHT...S wind 40 kt. Seas 24 ft.
.TUE...E wind 45 kt. Seas 22 ft.
.WED...N wind 25 kt. Seas 20 ft.
.THU...NW wind 30 kt. Seas 18 ft.

$$

PKZ786-200130-
Kiska to Attu Bering Side-
344 AM AKST Sun Nov 19 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...S wind 55 kt. Seas 26 ft. Rain.
.TONIGHT...S wind 50 kt. Seas 31 ft. Rain.
.MON...SW wind 40 kt. Seas 27 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 20 ft.
.TUE...NE wind 30 kt. Seas 15 ft.
.WED THROUGH THU...NW wind 30 kt. Seas 17 ft.

$$

PKZ787-200130-
Kiska to Attu Pacific Side-
344 AM AKST Sun Nov 19 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...SW wind 50 kt. Seas 28 ft building
to 34 ft in the afternoon. Rain.
.TONIGHT...SW wind 55 kt. Seas 38 ft. Rain.
.MON...SW wind 45 kt diminishing to 35 kt
in the afternoon. Seas 33 ft.
.MON NIGHT...S wind 35 kt. Seas 23 ft.
.TUE...N wind 40 kt. Seas 18 ft.
.WED THROUGH THU...NW wind 40 kt. Seas 21 ft.

$$

PKZ766-200130-
Pribilof Islands Nearshore Waters-
344 AM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TODAY...S wind 25 kt increasing to 35 kt 
in the afternoon. Seas 6 ft building to 10 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 17 ft. Rain.
.MON...SE wind 45 kt diminishing to 35 kt
in the afternoon. Seas 18 ft. Rain.
.MON NIGHT...S wind 30 kt. Seas 15 ft.
.TUE...SE wind 30 kt. Seas 12 ft.
.WED...NE wind 35 kt. Seas 17 ft.
.THU...NE wind 25 kt. Seas 12 ft.

$$

PKZ760-200130-
Bristol Bay greater than 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...N wind 10 kt. Seas 3 ft.
.TONIGHT...E wind 20 kt. Seas 4 ft. Freezing spray.
.MON...E wind 20 kt. Seas 4 ft. Freezing spray.
.MON NIGHT...N wind 15 kt. Seas 4 ft.
.TUE...NW wind 15 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 7 ft.

$$

PKZ761-200130-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...NE wind 10 kt increasing to 15 kt
in the afternoon. Seas 2 ft.
.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON...E wind 10 kt becoming NE in the afternoon. Seas 3 ft.
.MON NIGHT...NW wind 10 kt. Seas 3 ft.
.TUE...S wind 15 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 6 ft.
.THU...E wind 25 kt. Seas 3 ft.

$$

PKZ762-200130-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
344 AM AKST Sun Nov 19 2023

.TODAY...N wind 10 kt. Seas 1 foot.
.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON NIGHT...N wind 15 kt. Seas 3 ft.
.TUE...N wind 15 kt. Seas 4 ft.
.WED...NE wind 25 kt. Seas 6 ft.
.THU...E wind 20 kt. Seas 5 ft.

$$

PKZ763-200130-
Kuskokwim Delta and Etolin Strait out to 15 NM-
344 AM AKST Sun Nov 19 2023

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

.TODAY...SW wind 20 kt. Seas 3 ft.
.TONIGHT...S wind 20 kt becoming SE 30 kt
after midnight. Seas 4 ft. Freezing spray.
.MON...SE wind 30 kt. Seas 5 ft. Freezing spray.
.MON NIGHT...E wind 20 kt. Seas 5 ft.
.TUE...E wind 15 kt. Seas 5 ft.
.WED THROUGH THU...NE wind 25 kt. Seas 5 ft.

$$

PKZ764-200130-
Kuskokwim Delta from 15 to 80 NM-
344 AM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...S wind 25 kt. Seas 5 ft.
.TONIGHT...SE wind 35 kt. Seas 9 ft.
.MON...SE wind 35 kt. Seas 10 ft.
.MON NIGHT...SE wind 30 kt. Seas 9 ft.
.TUE...SE wind 20 kt. Seas 9 ft.
.WED...E wind 30 kt. Seas 12 ft.
.THU...E wind 25 kt. Seas 11 ft.

$$

PKZ765-200130-
North and West of Nunivak Island-
344 AM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...S wind 25 kt. Seas 6 ft.
.TONIGHT...SE wind 40 kt. Seas 13 ft.
.MON...SE wind 40 kt. Seas 16 ft.
.MON NIGHT...SE wind 30 kt. Seas 14 ft.
.TUE...SE wind 20 kt. Seas 11 ft.
.WED THROUGH THU...NE wind 30 kt. Seas 10 ft.

$$

PKZ767-200130-
Saint Matthew Island Waters-
344 AM AKST Sun Nov 19 2023

...STORM WARNING THROUGH TONIGHT...

.TODAY...E of Saint Matthew Island, S wind 20 kt 
increasing to 35 kt in the afternoon. W of Saint Matthew Island, S 
wind 40 kt becoming SE 50 kt in the afternoon. Seas 9 ft building to 
16 ft in the afternoon. Rain.
.TONIGHT...SE wind 45 kt E of Saint Matthew Island... SE 50 kt W
of Saint Matthew Island. Seas 27 ft. Rain.
.MON...SE wind 45 kt. Seas 27 ft. Rain.
.MON NIGHT...SE wind 40 kt. Seas 26 ft.
.TUE...SE wind 25 kt. Seas 19 ft.
.WED THROUGH THU...NE wind 30 kt. Seas 16 ft.

$$

925 
FZAK52 PAFC 200037
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
337 PM AKST Sun Nov 19 2023

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.

PKZ199-201400-
337 PM AKST Sun Nov 19 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 940 mb low at 215 nm W of Shemya moves north into eastern 
Russia by Tue morning. Its front moves east across the Bering 
through Mon night. A North Pacific low moves to 275 nm S of
Amchitka Island for Tue afternoon. The front lifts across the 
Aleutians through Tue afternoon.

$$

PKZ750-201400-
Sitkinak to Castle Cape out to 15 NM-
337 PM AKST Sun Nov 19 2023

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

.TONIGHT...NE wind 25 kt. Seas 7 ft.
.MON...NE wind 25 kt. Seas 8 ft.
.MON NIGHT...NW wind 25 kt. Seas 6 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 10 ft.
.THU...SE wind 20 kt. Seas 12 ft.
.FRI...SE wind 25 kt. Seas 12 ft.

$$

PKZ751-201400-
Sitkinak to Castle Cape from 15 to 100 NM-
337 PM AKST Sun Nov 19 2023

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

.TONIGHT...NE wind 30 kt. Seas 9 ft.
.MON...NE wind 30 kt. Seas 12 ft.
.MON NIGHT...NW wind 30 kt. Seas 15 ft.
.TUE...W wind 25 kt. Seas 14 ft.
.TUE NIGHT...S wind 20 kt. Seas 12 ft.
.WED...SE wind 30 kt. Seas 16 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 20 ft.

$$

PKZ752-201400-
Castle Cape to Cape Tolstoi out to 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...NE wind 20 kt. Seas 3 ft.
.MON...NE wind 15 kt in the morning becoming variable 10 kt. 
Seas 5 ft.
.MON NIGHT...W wind 15 kt. Seas 7 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.TUE NIGHT...E wind 20 kt. Seas 5 ft.
.WED...E wind 25 kt. Seas 13 ft.
.THU THROUGH FRI...SE wind 20 kt. Seas 11 ft.

$$

PKZ753-201400-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
337 PM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...NE wind 20 kt. Seas 5 ft.
.MON...NE wind 15 kt. Seas 8 ft.
.MON NIGHT...W wind 20 kt. Seas 12 ft.
.TUE...SW wind 15 kt. Seas 13 ft.
.TUE NIGHT...SE wind 25 kt. Seas 12 ft.
.WED...SE wind 30 kt. Seas 19 ft.
.THU THROUGH FRI...S wind 25 kt. Seas 20 ft.

$$

PKZ754-201400-
Cape Tolstoi to Cape Sarichef out to 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...SE wind 20 kt. Seas 2 ft.
.MON...SE wind 20 kt. Seas 4 ft.
.MON NIGHT...S wind 20 kt. Seas 7 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...E wind 30 kt. Seas 7 ft.
.WED...E wind 30 kt. Seas 16 ft.
.THU THROUGH FRI...SE wind 20 kt. Seas 15 ft.

$$

PKZ755-201400-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
337 PM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY MONDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 4 ft.
.MON...SE wind 20 kt. Seas 7 ft.
.MON NIGHT...S wind 20 kt. Seas 13 ft.
.TUE...S wind 15 kt. Seas 12 ft.
.TUE NIGHT...E wind 35 kt. Seas 12 ft.
.WED...SE wind 35 kt. Seas 23 ft.
.THU THROUGH FRI...S wind 30 kt. Seas 22 ft.

$$

PKZ756-201400-
Port Heiden to Nelson Lagoon out to 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...E wind 20 kt. Seas 4 ft.
.MON...SE wind 15 kt. Seas 3 ft.
.MON NIGHT...Variable wind 10 kt. Seas 3 ft.
.TUE...Variable wind 10 kt. Seas 4 ft.
.TUE NIGHT...E wind 20 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 7 ft.
.THU...SE wind 20 kt. Seas 4 ft.
.FRI...SE wind 25 kt. Seas 3 ft.

$$

PKZ757-201400-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...E wind 20 kt. Seas 5 ft.
.MON...SE wind 15 kt. Seas 5 ft.
.MON NIGHT...Variable wind 10 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.TUE NIGHT...E wind 20 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 11 ft.
.THU...E wind 20 kt. Seas 7 ft.
.FRI...SE wind 25 kt. Seas 6 ft.

$$

PKZ758-201400-
Nelson Lagoon to Cape Sarichef out to 15 NM-
337 PM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...SE wind 20 kt. Seas 3 ft.
.MON...SE wind 25 kt. Seas 3 ft.
.MON NIGHT...SE wind 20 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.TUE NIGHT...E wind 25 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 9 ft.
.THU THROUGH FRI...SE wind 25 kt. Seas 4 ft.

$$

PKZ759-201400-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
337 PM AKST Sun Nov 19 2023

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

.TONIGHT...SE wind 25 kt. Seas 5 ft.
.MON...SE wind 25 kt. Seas 7 ft.
.MON NIGHT...SE wind 25 kt. Seas 8 ft.
.TUE...SE wind 15 kt. Seas 8 ft.
.TUE NIGHT...E wind 25 kt. Seas 8 ft.
.WED...E wind 30 kt. Seas 12 ft.
.THU THROUGH FRI...SE wind 25 kt. Seas 7 ft.

$$

PKZ770-201400-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 40 kt. Seas 6 ft.
.MON...SE wind 35 kt. Seas 6 ft. Rain.
.MON NIGHT...S wind 25 kt diminishing to 15 kt after midnight.
Seas 6 ft. Rain.
.TUE...SE wind 20 kt. Seas 7 ft.
.TUE NIGHT...E wind 35 kt. Seas 7 ft.
.WED...E wind 35 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 7 ft.
.FRI...SW wind 20 kt. Seas 6 ft.

$$

PKZ772-201400-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 40 kt. Seas 11 ft.
.MON...SE wind 40 kt diminishing to 30 kt in the afternoon. 
Seas 11 ft.
.MON NIGHT...S wind 25 kt diminishing to 15 kt after midnight.
Seas 10 ft. Rain.
.TUE...S wind 20 kt. Seas 9 ft.
.TUE NIGHT...E wind 30 kt. Seas 9 ft.
.WED...E wind 35 kt. Seas 13 ft.
.THU...E wind 20 kt. Seas 10 ft.
.FRI...NE wind 20 kt. Seas 8 ft.

$$

PKZ771-201400-
Unalaska Bay-
337 PM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...SE wind 30 kt. Seas 4 ft.
.MON...SE wind 30 kt. Seas 4 ft. Rain with snow.
.MON NIGHT...S wind 20 kt in the evening becoming variable 
less than 10 kt. Seas 3 ft. Rain.
.TUE...S wind 10 kt. Seas 2 ft.
.TUE NIGHT...E wind 30 kt. Seas 5 ft.
.WED...E wind 30 kt. Seas 5 ft.
.THU...E wind 15 kt. Seas 2 ft.
.FRI...S wind 10 kt. Seas 2 ft.

$$

PKZ773-201400-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 35 kt. Seas 13 ft. Rain.
.MON NIGHT...S wind 25 kt becoming SW 15 kt after midnight. 
Seas 12 ft. Rain.
.TUE...S wind 20 kt. Seas 10 ft.
.TUE NIGHT...E wind 40 kt. Seas 12 ft.
.WED...E wind 35 kt. Seas 21 ft.
.THU...E wind 25 kt. Seas 21 ft.
.FRI...S wind 20 kt. Seas 17 ft.

$$

PKZ774-201400-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 35 kt. Seas 15 ft. Rain.
.MON NIGHT...S wind 25 kt becoming SW 15 kt after midnight. 
Seas 14 ft. Rain.
.TUE...S wind 20 kt. Seas 14 ft.
.TUE NIGHT...E wind 40 kt. Seas 14 ft.
.WED...SE wind 35 kt. Seas 24 ft.
.THU...SE wind 25 kt. Seas 24 ft.
.FRI...S wind 25 kt. Seas 21 ft.

$$

PKZ775-201400-
Nikolski to Seguam Bering Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 45 kt. Seas 16 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 14 ft. Rain.
.MON NIGHT...S wind 15 kt. Seas 10 ft.
.TUE...SE wind 30 kt. Seas 9 ft.
.TUE NIGHT...E wind 40 kt. Seas 13 ft.
.WED...E wind 30 kt. Seas 16 ft.
.THU...NE wind 20 kt. Seas 15 ft.
.FRI...NW wind 15 kt. Seas 11 ft.

$$

PKZ776-201400-
Nikolski to Seguam Bering Side from 15 to 85 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 45 kt. Seas 17 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 16 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 11 ft.
.TUE...SE wind 30 kt. Seas 9 ft.
.TUE NIGHT...E wind 40 kt. Seas 12 ft.
.WED...E wind 35 kt. Seas 16 ft.
.THU...NE wind 20 kt. Seas 13 ft.
.FRI...NW wind 20 kt. Seas 10 ft.

$$

PKZ777-201400-
Nikolski to Seguam Pacfic Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 45 kt. Seas 19 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon. 
Seas 18 ft. Rain.
.MON NIGHT...SW wind 20 kt. Seas 13 ft.
.TUE...SE wind 30 kt. Seas 13 ft.
.TUE NIGHT...E wind 40 kt. Seas 16 ft.
.WED...E wind 30 kt. Seas 23 ft.
.THU...NE wind 20 kt. Seas 23 ft.
.FRI...NW wind 15 kt. Seas 15 ft.

$$

PKZ778-201400-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 45 kt. Seas 14 ft building to 19 ft 
after midnight. Rain.
.MON...S wind 35 kt diminishing to 20 kt in the afternoon. 
Seas 18 ft. Rain.
.MON NIGHT...SW wind 20 kt. Seas 17 ft.
.TUE...SE wind 35 kt. Seas 16 ft.
.TUE NIGHT...E wind 40 kt. Seas 18 ft.
.WED...SE wind 30 kt. Seas 24 ft.
.THU...NE wind 20 kt. Seas 24 ft.
.FRI...W wind 20 kt. Seas 17 ft.

$$

PKZ780-201400-
Seguam to Adak Bering Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT...

.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. 
Seas 11 ft subsiding to 7 ft after midnight. Rain.
.MON...S wind 30 kt. Seas 7 ft.
.MON NIGHT...SW wind 20 kt. Seas 7 ft.
.TUE...SE wind 35 kt. Seas 9 ft.
.TUE NIGHT...E wind 40 kt. Seas 11 ft.
.WED...NE wind 30 kt. Seas 13 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 12 ft.

$$

PKZ781-201400-
Seguam to Adak Bering Side from 15 to 85 NM-
337 PM AKST Sun Nov 19 2023

...STORM WARNING TONIGHT...

.TONIGHT...S wind 50 kt diminishing to 30 kt after midnight. 
Seas 17 ft. Rain.
.MON...S wind 30 kt. Seas 13 ft.
.MON NIGHT...SW wind 25 kt. Seas 13 ft.
.TUE...SE wind 35 kt. Seas 11 ft.
.TUE NIGHT...E wind 40 kt. Seas 14 ft.
.WED...NE wind 35 kt. Seas 17 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 14 ft.

$$

PKZ782-201400-
Seguam to Adak Pacific Side out to 15 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT...

.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. 
Seas 20 ft. Rain.
.MON...SW wind 25 kt. Seas 17 ft.
.MON NIGHT...SW wind 25 kt. Seas 17 ft.
.TUE...SE wind 40 kt. Seas 15 ft.
.TUE NIGHT...E wind 40 kt. Seas 20 ft.
.WED...NE wind 30 kt. Seas 22 ft.
.THU...NW wind 25 kt. Seas 16 ft.
.FRI...W wind 25 kt. Seas 11 ft.

$$

PKZ783-201400-
Seguam to Adak Pacific Side from 15 to 75 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING TONIGHT...

.TONIGHT...S wind 45 kt diminishing to 30 kt after midnight. 
Seas 20 ft. Rain.
.MON...SW wind 30 kt. Seas 22 ft.
.MON NIGHT...SW wind 25 kt. Seas 22 ft.
.TUE AND TUE NIGHT...E wind 45 kt. Seas 21 ft.
.WED...NE wind 30 kt. Seas 24 ft.
.THU...NW wind 30 kt. Seas 19 ft.
.FRI...W wind 25 kt. Seas 15 ft.

$$

PKZ784-201400-
Adak to Kiska Bering Side-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S wind 45 kt. Seas 23 ft. Rain.
.MON...SW wind 40 kt. Seas 22 ft. Rain showers.
.MON NIGHT...SW wind 25 kt. Seas 17 ft.
.TUE AND TUE NIGHT...E wind 40 kt. Seas 15 ft.
.WED...N wind 30 kt. Seas 17 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 16 ft.

$$

PKZ785-201400-
Adak to Kiska Pacific Side-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 23 ft building to 29 ft after
midnight. Rain.
.MON...SW wind 40 kt diminishing to 30 kt in the afternoon. 
Seas 29 ft.
.MON NIGHT...SW wind 20 kt becoming SE 40 kt after midnight. 
Seas 23 ft.
.TUE...E wind 45 kt. Seas 22 ft.
.TUE NIGHT...NE wind 40 kt. Seas 22 ft.
.WED...N wind 25 kt. Seas 20 ft.
.THU THROUGH FRI...W wind 30 kt. Seas 17 ft.

$$

PKZ786-201400-
Kiska to Attu Bering Side-
337 PM AKST Sun Nov 19 2023

...STORM WARNING TONIGHT...

.TONIGHT...S wind 50 kt. Seas 32 ft. Rain.
.MON...SW wind 40 kt. Seas 26 ft. Rain.
.MON NIGHT...SW wind 25 kt becoming SE after midnight. 
Seas 20 ft subsiding to 15 ft after midnight.
.TUE AND TUE NIGHT...NE wind 30 kt. Seas 14 ft.
.WED THROUGH THU...NW wind 30 kt. Seas 17 ft.
.FRI...N wind 30 kt. Seas 15 ft.

$$

PKZ787-201400-
Kiska to Attu Pacific Side-
337 PM AKST Sun Nov 19 2023

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 55 kt. Seas 38 ft. Rain.
.MON...SW wind 45 kt diminishing to 35 kt in the afternoon. 
Seas 33 ft.
.MON NIGHT...SW wind 25 kt becoming E 35 kt after midnight. 
Seas 22 ft. Rain.
.TUE...NE wind 35 kt. Seas 18 ft.
.TUE NIGHT...NW wind 40 kt. Seas 17 ft.
.WED THROUGH THU...NW wind 40 kt. Seas 21 ft.
.FRI...SW wind 30 kt. Seas 16 ft.

$$

PKZ766-201400-
Pribilof Islands Nearshore Waters-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 45 kt. Seas 16 ft. Rain.
.MON...SE wind 45 kt diminishing to 35 kt in the afternoon. 
Seas 18 ft. Rain.
.MON NIGHT...SE wind 30 kt becoming S 20 kt after midnight. 
Seas 15 ft. Rain.
.TUE...S wind 15 kt. Seas 12 ft.
.TUE NIGHT...E wind 30 kt. Seas 9 ft.
.WED...NE wind 35 kt. Seas 17 ft.
.THU...NE wind 25 kt. Seas 12 ft.
.FRI...N wind 20 kt. Seas 8 ft.

$$

PKZ760-201400-
Bristol Bay greater than 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...E wind 20 kt. Seas 4 ft. Freezing spray.
.MON...E wind 20 kt. Seas 4 ft. Freezing spray.
.MON NIGHT...NE wind 10 kt becoming NW after midnight. 
Seas 5 ft.
.TUE...W wind 15 kt. Seas 5 ft.
.TUE NIGHT...E wind 15 kt. Seas 4 ft.
.WED...E wind 30 kt. Seas 9 ft.
.THU THROUGH FRI...E wind 25 kt. Seas 6 ft.

$$

PKZ761-201400-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON...NE wind 10 kt. Seas 3 ft.
.MON NIGHT...N wind 10 kt. Seas 3 ft.
.TUE...W wind 15 kt. Seas 4 ft.
.TUE NIGHT...E wind 15 kt. Seas 3 ft.
.WED...E wind 30 kt. Seas 6 ft.
.THU THROUGH FRI...SE wind 25 kt. Seas 3 ft.

$$

PKZ762-201400-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
337 PM AKST Sun Nov 19 2023

.TONIGHT...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON...NE wind 20 kt. Seas 3 ft. Freezing spray.
.MON NIGHT...N wind 10 kt becoming NW after midnight. Seas 3 ft.
.TUE...NW wind 15 kt. Seas 3 ft.
.TUE NIGHT...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 25 kt. Seas 6 ft.
.THU THROUGH FRI...E wind 20 kt. Seas 5 ft.

$$

PKZ763-201400-
Kuskokwim Delta and Etolin Strait out to 15 NM-
337 PM AKST Sun Nov 19 2023

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight. 
Seas in ice free waters 4 ft. Freezing spray.
.MON...SE wind 30 kt. Seas in ice free waters 5 ft. 
Freezing spray.
.MON NIGHT...E wind 20 kt. Seas in ice free waters 5 ft. 
Freezing spray.
.TUE...E wind 10 kt. Seas in ice free waters 4 ft.
.TUE NIGHT...E wind 15 kt. Seas in ice free waters 4 ft.
.WED THROUGH THU...NE wind 25 kt. Seas in ice free waters 5 ft.
.FRI...E wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ764-201400-
Kuskokwim Delta from 15 to 80 NM-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 35 kt. Seas 9 ft.
.MON...SE wind 35 kt. Seas 10 ft.
.MON NIGHT...SE wind 30 kt diminishing to 20 kt after midnight.
Seas 10 ft.
.TUE...SE wind 15 kt. Seas 8 ft.
.TUE NIGHT...E wind 20 kt. Seas 7 ft.
.WED...E wind 30 kt. Seas 12 ft.
.THU...E wind 25 kt. Seas 11 ft.
.FRI...E wind 20 kt. Seas 7 ft.

$$

PKZ765-201400-
North and West of Nunivak Island-
337 PM AKST Sun Nov 19 2023

...GALE WARNING THROUGH MONDAY...

.TONIGHT...SE wind 40 kt. Seas 13 ft.
.MON...SE wind 40 kt. Seas 16 ft.
.MON NIGHT...SE wind 30 kt. Seas 14 ft.
.TUE AND TUE NIGHT...SE wind 20 kt. Seas 9 ft.
.WED THROUGH THU...NE wind 30 kt. Seas 10 ft.
.FRI...NE wind 20 kt. Seas 7 ft.

$$

PKZ767-201400-
Saint Matthew Island Waters-
337 PM AKST Sun Nov 19 2023

...STORM WARNING TONIGHT...

.TONIGHT...SE wind 45 kt E of Saint Matthew Island...SE 50 kt 
W of Saint Matthew Island. Seas 27 ft. Rain.
.MON...SE wind 45 kt. Seas 27 ft. Rain.
.MON NIGHT...SE wind 40 kt diminishing to 30 kt after midnight.
Seas 26 ft.
.TUE...SE wind 25 kt. Seas 18 ft.
.TUE NIGHT...SE wind 20 kt. Seas 13 ft.
.WED THROUGH THU...NE wind 30 kt. Seas 16 ft.
.FRI...NE wind 25 kt. Seas 13 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
517 AM AKST Sat Nov 18 2023

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

Key Takeaways:

1) The coldest air of the season has arrived and will persist
through the weekend and into Monday. Expect overnight lows ranging
from 10 to 15 above zero along the coast, from 10 below zero to 5
above zero from Cook Inlet to the Mat-Su Valleys, and 25 below to 10
below zero for the northern Susitna Valley and Copper River Basin.

2) Strong northerly gap winds will continue along the coast from
Seward to Whittier and Valdez through Sunday. Blizzard conditions
will continue for Thompson Pass through today. Elsewhere, areas of
blowing snow are also possible along the coast of Prince William
Sound and Turnagain pass.

GOES water vapor imagery shows broad upper-level troughing persists
across southcentral/eastcentral Alaska. The primary wave axis
rotating around the broad trough and associated surface low has
pushed into the eastern Gulf, with shower coverage diminishing
across the eastern/coastal Chugach. Remnant moisture and light
northnorthwest flow in the mid-levels has continued to bring low/mid-
level cloud cover for parts of Anchorage, the eastern Mat-Su Valley,
and the adjacent Chugach Mountains. This has resulted in overnight
temperatures being somewhat warmer than they would have been
otherwise, and a solid 5-10 degrees warmer than cloudless locations
on the periphery of this cloud cover.

As the trough continues east today, ridging will amplify across the
interior Southcentral while a surface low remains in the northern
Gulf. Gap winds will continue to intensify, especially for mountain
passes and gaps along the coast. These winds will peak by early
afternoon today for Seward and Whittier, with the peak of winds
arriving late this evening for Valdez and Thompson Pass. The
combination of recent snow from Whittier to Valdez will result in
some blowing snow through Saturday with blizzard conditions expected
for Thompson Pass.

Temperatures will also continue to fall as 850 mb temperatures fall
to near -20C through the weekend. This will result in the coldest
temperatures so far this season.

Winds and coastal precipitation will likely return by late Monday as
frontal system moves into the northern Gulf.

-Brown

&&

.SHORT TERM FORECAST SOUTHWEST/BERING SEA/ALEUTIANS (Days 1
through 3: Today through Monday night)...

Conditions will remain colder than normal and relatively calm
across Southwest Alaska this weekend under the influence of
surface high pressure. This will be punctuated today by a weak
shortwave over the Kuskokwim Delta, producing a line of light snow
showers pushing east into the Lower Kuskokwim Valley this
afternoon and evening, before weakening. A trace to an inch of
snowfall is possible from this feature through tonight, from
Bethel north and east to Aniak. Temperatures will remain below
normal through at least Monday under increasingly clear skies and
with the current cold air mass remaining in place. Calm, quiet
conditions also extend across the Bering Sea/Aleutians today as a
result of a ridge out ahead of an incoming deep low. Scattered
ocean effect snow showers will continue to drift into the
Aleutians and Alaska Peninsula, enhanced by an upper level
shortwave crossing the eastern Bering Sea today and exiting into
the North Pacific by tonight.

Attention from there shifts to a deep 940s mb low near the
southern tip of the Kamchatka Peninsula, which sends an
intensifying front into the western Bering Sea and Aleutians
tonight. Sustained winds well into storm force range move into
the western Aleutians tonight, increasing to near hurricane force
as the front progresses north and east into the Bering Sea. With
the front intensifying as it crosses Shemya late tonight, the
question of whether or not high winds will be experienced there
depends strongly upon the track of the low, hinging on minor
changes in its forward speed. With that taken into consideration,
there continues to be a moderate chance for winds to gust to 75
mph or greater at Shemya. Therefore, a High Wind Watch remains in
effect for the western Aleutians.

The front continues east on Sunday, into the central
Aleutians/Bering Sea. The main core of winds is forecast to pass
north of the island chain. This, combined with the unfavorable
southerly wind direction and atmospheric profile has led to the
cancellation of the watch for the central Aleutians. Regardless,
strong wind gusts as high as 65 mph are still anticipated there.
Sunday evening, a second round of high winds have the potential to
push through the southwest corner of the Bering as the parent low
passes to the west. However, the low will be occluded by this
time, and winds associated with the low will begin to diminish. A
lot of warmer air and precipitable water is associated with this
low and rainfall could be heavy at times.

The low traverses the far western Bering Sea on Monday as it
tracks north, winds gradually weakening. The strongest core of
winds moves into the northern Bering and weakens below storm force
by Monday morning. The low's occluded front pushes to the
Pribilof Islands and the eastern Aleutians, bringing air warm
enough on southerly flow for precipitation to fall mostly as
rain. Another low, likely storm-force, looks to approach the
western Aleutians by Monday night.

CQ

&&

.LONG TERM FORECAST (Days 4 through 7: Tuesday through
Friday)...

High confidence in active weather across Southern Alaska and the
Bering Sea for the long-term, though confidence remains low in the
finer details at this time due to model uncertainty. Here are the
hazards being monitored for this time period:
* Heavy precipitation along Eastern Kenai Peninsula and Prince
  William Sound from Tuesday through Thursday
* High winds across much of Southcentral Alaska from Monday into
  Tuesday

Tuesday begins with a 960-970 mb low moving north into
Southcentral Alaska. Some differences persist with timing and low
position, but there remains a consistent signal for sustained
winds at storm force (>= 50 kt) extending across much of the
northern Gulf coast, from Cordova in the east to Kodiak Island in
the west. Gusts could reach as high as hurricane force (>= 65
kt). In addition to strong winds along the front, a tightening
surface pressure gradient between a 1020-1030 mb interior Alaska
high and this incoming low could contribute to gusty gap winds
prior to the arrival of this front, likely through Matanuska
Valley and Thompson Pass. These bear watching, especially as
residual cold air in the Copper River Basin could lead to a bora-
type wind event. Speaking of cold air, some uncertainty remains
with precipitation type as abundant moisture streams in with this
front. Will temperatures stay below freezing as this weekend's
cold air takes longer to scour out? Or could warm air advection
lead to mixed precipitation? Overall, while the position of the
low will have some effect on precipitation amounts, there seems to
be a decent downsloping signature, suggesting that much of the
precipitation will be focused along the north Gulf coast mountains
with not much making it inland into the primary Southcentral
population corridor.

Overall, the general trend for the long-term will include a warm-
up as the aforementioned Southcentral low moves in from the south
and an occluded low moves towards Western Alaska from the Bering
Sea. This warm-up will be further enhanced with the movement of
yet another low towards the forecast area by Tuesday. A North
Pacific low (with current guidance pointing towards minimum sea
level pressure of 940-950 mb) moves along the Aleutian Chain from
Tuesday through Friday. Model discrepancies with the positioning
of this low means that wind directions and speeds are difficult to
pinpoint at this time. However, operational guidance is pointing
at sustained winds of at least storm force (and perhaps even
hurricane force) for the Bering Sea and Aleutian Islands. It's
too early yet to delve into the forecast details. However, the
outlook is for strong winds along the Bering and Aleutians, and
for elevated winds (up to gale force) and abundant moisture to
sweep across Mainland Alaska along the low's front. Precipitation
type, again, will be something to watch as this front further
warms temperatures.

- KC

&&

.AVIATION...

PANC...VFR conditions and light northerly winds will persist.
Temperatures are expected to drop into the single digits during
the overnight hours this weekend.

KM

&&