Storm Warning 196, NWS Anchorage, AK

Issued

Dec 13, 2024, 3:19 PM AKST (00:19 UTC)

Expired

Dec 14, 2024, 4:00 AM AKST

In force

13 hr

Issued by

NWS Anchorage, AK

172 
FZAK52 PAFC 140019
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
319 PM AKST Fri Dec 13 2024

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.

PKZ199-141300-
319 PM AKST Fri Dec 13 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 984 mb low roughly 40 nm E of Saint Paul moves 90 nm WSW of 
Mekoryuk at 987 mb early Sat morning and then out of the region 
into the northern Bering Sat afternoon. A 940 mb N Pacific low 375
nm SW of Shemya Sat afternoon moves 40 nm NE of Shemya at 948 mb 
Sun afternoon.

$$

PKZ750-141300-
Sitkinak to Castle Cape out to 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...S wind 20 kt. Seas 4 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SAT NIGHT...E wind 15 kt. Seas 5 ft.
.SUN...SE wind 20 kt. Seas 7 ft.
.SUN NIGHT...E wind 30 kt. Seas 9 ft.
.MON...E wind 35 kt. Seas 15 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 14 ft.

$$

PKZ751-141300-
Sitkinak to Castle Cape from 15 to 100 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 9 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SAT NIGHT...E wind 20 kt. Seas 11 ft.
.SUN...E wind 25 kt. Seas 11 ft.
.SUN NIGHT...E wind 35 kt. Seas 12 ft.
.MON...E wind 40 kt. Seas 20 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 20 ft.

$$

PKZ752-141300-
Castle Cape to Cape Tolstoi out to 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...S wind 20 kt. Seas 5 ft. Rain.
.SAT...SE wind 20 kt. Seas 5 ft.
.SAT NIGHT...E wind 15 kt. Seas 6 ft.
.SUN...E wind 25 kt. Seas 9 ft.
.SUN NIGHT...E wind 30 kt. Seas 10 ft.
.MON THROUGH TUE...E wind 30 kt. Seas 17 ft.
.WED...E wind 25 kt. Seas 17 ft.

$$

PKZ753-141300-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 9 ft.
.SAT...SE wind 25 kt. Seas 10 ft.
.SAT NIGHT...E wind 25 kt. Seas 12 ft.
.SUN...E wind 25 kt. Seas 12 ft.
.SUN NIGHT...E wind 35 kt. Seas 13 ft.
.MON...E wind 35 kt. Seas 18 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 20 ft.

$$

PKZ754-141300-
Cape Tolstoi to Cape Sarichef out to 15 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 7 ft. Rain.
.SAT...E wind 20 kt. Seas 8 ft. Rain.
.SAT NIGHT...NE wind 15 kt. Seas 8 ft.
.SUN...E wind 30 kt. Seas 9 ft.
.SUN NIGHT...E wind 35 kt. Seas 11 ft.
.MON...E wind 35 kt. Seas 12 ft.
.TUE...E wind 25 kt. Seas 11 ft.
.WED...E wind 20 kt. Seas 14 ft.

$$

PKZ755-141300-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft. Rain.
.SAT...SE wind 25 kt. Seas 11 ft. Rain.
.SAT NIGHT...NE wind 20 kt. Seas 11 ft.
.SUN...E wind 30 kt. Seas 12 ft.
.SUN NIGHT...E wind 35 kt. Seas 14 ft.
.MON...E wind 35 kt. Seas 17 ft.
.TUE THROUGH WED...SE wind 25 kt. Seas 20 ft.

$$

PKZ756-141300-
Port Heiden to Nelson Lagoon out to 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...SE wind 20 kt. Seas 5 ft.
.SAT...SE wind 15 kt. Seas 4 ft. Snow.
.SAT NIGHT...Variable wind 10 kt. Seas 4 ft.
.SUN...SE wind 20 kt. Seas 5 ft.
.SUN NIGHT...E wind 35 kt. Seas 7 ft.
.MON...E wind 35 kt. Seas 8 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 8 ft.

$$

PKZ757-141300-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE wind 25 kt. Seas 7 ft.
.SAT...SE wind 20 kt. Seas 6 ft.
.SAT NIGHT...E wind 15 kt. Seas 5 ft.
.SUN...SE wind 20 kt. Seas 7 ft.
.SUN NIGHT...E wind 35 kt. Seas 9 ft.
.MON...E wind 35 kt. Seas 12 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 12 ft.

$$

PKZ758-141300-
Nelson Lagoon to Cape Sarichef out to 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...SW wind 20 kt becoming NE after midnight. Seas 5 ft.
Rain.
.SAT...E wind 20 kt. Seas 5 ft. Rain with snow.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN...SE wind 25 kt. Seas 7 ft.
.SUN NIGHT...E wind 35 kt. Seas 8 ft.
.MON...E wind 35 kt. Seas 7 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 8 ft.

$$

PKZ759-141300-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 25 kt becoming N 15 kt after midnight. Seas 7
ft. Rain.
.SAT...NE wind 20 kt. Seas 7 ft. Rain.
.SAT NIGHT...N wind 15 kt. Seas 7 ft.
.SUN...SE wind 25 kt. Seas 10 ft.
.SUN NIGHT...E wind 40 kt. Seas 11 ft.
.MON...E wind 40 kt. Seas 11 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 12 ft.

$$

PKZ770-141300-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 6 ft. Rain.
.SAT...NW wind 25 kt. Seas 8 ft. Rain.
.SAT NIGHT...NW wind 20 kt becoming E after midnight. Seas 8 ft.
.SUN...SE wind 35 kt. Seas 9 ft.
.SUN NIGHT...SE wind 30 kt. Seas 9 ft.
.MON...SE wind 30 kt. Seas 7 ft.
.TUE...E wind 25 kt. Seas 10 ft.
.WED...E wind 20 kt. Seas 7 ft.

$$

PKZ772-141300-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 8 ft. Rain.
.SAT...NW wind 25 kt. Seas 8 ft. Rain.
.SAT NIGHT...NW wind 20 kt becoming E after midnight. Seas 8 ft.
.SUN...SE wind 30 kt. Seas 11 ft.
.SUN NIGHT...SE wind 35 kt. Seas 13 ft.
.MON...E wind 30 kt. Seas 11 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 13 ft.

$$

PKZ771-141300-
Unalaska Bay-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...W wind 10 kt becoming NW after midnight. Seas 3 ft.
Rain.
.SAT...NW wind 25 kt. Seas 4 ft building to 7 ft in the afternoon. 
Rain and snow.
.SAT NIGHT...NW wind 20 kt in the evening becoming variable less
than 10 kt. Seas 7 ft subsiding to 4 ft after midnight. Rain.
.SUN AND SUN NIGHT...SE wind 30 kt. Seas 7 ft.
.MON...SE wind 15 kt. Seas 2 ft.
.TUE...E wind 20 kt. Seas 3 ft.
.WED...E wind 15 kt. Seas 2 ft.

$$

PKZ773-141300-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 9 ft.
.SAT...NW wind 25 kt. Seas 9 ft. Rain.
.SAT NIGHT...NW wind 25 kt becoming E after midnight. Seas 9 ft.
.SUN...SE wind 30 kt. Seas 11 ft.
.SUN NIGHT...SE wind 30 kt. Seas 15 ft.
.MON...SE wind 30 kt. Seas 15 ft.
.TUE...E wind 25 kt. Seas 20 ft.
.WED...E wind 20 kt. Seas 16 ft.

$$

PKZ774-141300-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 15 kt increasing to 25 kt after midnight. Seas
10 ft. Rain.
.SAT...N wind 30 kt. Seas 13 ft. Rain.
.SAT NIGHT...N wind 30 kt becoming NE 15 kt after midnight. Seas
12 ft.
.SUN...SE wind 35 kt. Seas 13 ft.
.SUN NIGHT...SE wind 35 kt. Seas 21 ft.
.MON THROUGH TUE...SE wind 25 kt. Seas 22 ft.
.WED...SE wind 20 kt. Seas 18 ft.

$$

PKZ775-141300-
Nikolski to Seguam Bering Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...S wind 20 kt becoming SE 40 kt after midnight. Seas
12 ft. Rain.
.SUN...SE wind 45 kt. Seas 16 ft.
.SUN NIGHT...S wind 30 kt. Seas 14 ft.
.MON...SE wind 20 kt. Seas 14 ft.
.TUE...E wind 20 kt. Seas 13 ft.
.WED...Variable wind 10 kt. Seas 13 ft.

$$

PKZ776-141300-
Nikolski to Seguam Bering Side from 15 to 85 NM-
319 PM AKST Fri Dec 13 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SAT NIGHT...S wind 20 kt becoming SE 40 kt after midnight. Seas
13 ft. Rain.
.SUN...SE wind 45 kt. Seas 17 ft.
.SUN NIGHT...SE wind 30 kt. Seas 13 ft.
.MON...SE wind 25 kt. Seas 12 ft.
.TUE...E wind 20 kt. Seas 13 ft.
.WED...E wind 15 kt. Seas 12 ft.

$$

PKZ777-141300-
Nikolski to Seguam Pacfic Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas 10 ft.
.SAT...NW wind 25 kt. Seas 10 ft.
.SAT NIGHT...SW wind 20 kt becoming SE 40 kt after midnight. Seas
13 ft. Rain.
.SUN...SE wind 45 kt. Seas 17 ft.
.SUN NIGHT...S wind 30 kt. Seas 22 ft.
.MON...S wind 25 kt. Seas 22 ft.
.TUE...SE wind 20 kt. Seas 17 ft.
.WED...Variable wind 10 kt. Seas 18 ft.

$$

PKZ778-141300-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
319 PM AKST Fri Dec 13 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 11 ft.
.SAT...NW wind 25 kt. Seas 12 ft.
.SAT NIGHT...SW wind 20 kt becoming SE 40 kt after midnight. Seas
14 ft. Rain.
.SUN...SE wind 45 kt. Seas 19 ft.
.SUN NIGHT...SW wind 30 kt. Seas 25 ft.
.MON...S wind 25 kt. Seas 25 ft.
.TUE...SE wind 20 kt. Seas 21 ft.
.WED...S wind 15 kt. Seas 20 ft.

$$

PKZ780-141300-
Seguam to Adak Bering Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 8 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...SE wind 40 kt increasing to 50 kt after midnight. Gusts
to 65 kt. Seas 15 ft. Rain and snow.
.SUN...S wind 45 kt. Seas 13 ft.
.SUN NIGHT...S wind 25 kt. Seas 8 ft.
.MON...S wind 30 kt. Seas 9 ft.
.TUE...SE wind 15 kt. Seas 9 ft.
.WED...W wind 15 kt. Seas 14 ft.

$$

PKZ781-141300-
Seguam to Adak Bering Side from 15 to 85 NM-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 11 ft.
.SAT...W wind 25 kt. Seas 11 ft. Rain showers.
.SAT NIGHT...SE wind 50 kt. Gusts to 65 kt. Seas 13 ft building to 
19 ft after midnight. Rain and snow.
.SUN...SE wind 45 kt. Seas 18 ft.
.SUN NIGHT...SE wind 30 kt. Seas 13 ft.
.MON...SE wind 30 kt. Seas 16 ft.
.TUE...E wind 20 kt. Seas 10 ft.
.WED...N wind 15 kt. Seas 13 ft.

$$

PKZ782-141300-
Seguam to Adak Pacific Side out to 15 NM-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 11 ft.
.SAT NIGHT...SE wind 50 kt. Gusts to 65 kt. Seas 14 ft building to 
20 ft after midnight. Rain and snow.
.SUN...S wind 45 kt. Seas 23 ft.
.SUN NIGHT...S wind 30 kt. Seas 26 ft.
.MON...S wind 35 kt. Seas 26 ft.
.TUE...S wind 15 kt. Seas 16 ft.
.WED...W wind 20 kt. Seas 17 ft.

$$

PKZ783-141300-
Seguam to Adak Pacific Side from 15 to 75 NM-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 14 ft.
.SAT...W wind 25 kt. Seas 13 ft.
.SAT NIGHT...SE wind 55 kt. Gusts to 70 kt. Seas 23 ft. Rain.
.SUN...S wind 45 kt. Seas 27 ft.
.SUN NIGHT...SW wind 40 kt. Seas 30 ft.
.MON...S wind 40 kt. Seas 31 ft.
.TUE...SW wind 20 kt. Seas 18 ft.
.WED...W wind 25 kt. Seas 18 ft.

$$

PKZ784-141300-
Adak to Kiska Bering Side-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 15 ft. Rain showers.
.SAT...SW wind 25 kt becoming S 35 kt in the afternoon. Seas 15
ft. Rain showers.
.SAT NIGHT...SE wind 55 kt. Gusts to 70 kt. Seas 23 ft. Rain and 
snow.
.SUN...SE wind 45 kt. Seas 25 ft.
.SUN NIGHT...S wind 30 kt. Seas 19 ft.
.MON...S wind 40 kt. Seas 19 ft.
.TUE...NW wind 15 kt. Seas 12 ft.
.WED...NW wind 20 kt. Seas 15 ft.

$$

PKZ785-141300-
Adak to Kiska Pacific Side-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 18 ft. Rain showers.
.SAT...SW wind 25 kt becoming S 40 kt in the afternoon. Seas 18
ft.
.SAT NIGHT...SE wind 55 kt. Gusts to 70 kt. Seas 24 ft building to 
30 ft after midnight. Rain showers.
.SUN AND SUN NIGHT...SW wind 50 kt. Seas 36 ft.
.MON...SW wind 50 kt. Seas 35 ft.
.TUE...W wind 25 kt. Seas 18 ft.
.WED...W wind 30 kt. Seas 18 ft.

$$

PKZ786-141300-
Kiska to Attu Bering Side-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 23 ft. Rain showers and widespread
snow showers.
.SAT...SW wind 30 kt becoming SE 40 kt in the afternoon. Gusts to 60
kt in the afternoon. Seas 20 ft subsiding to 16 ft in the afternoon.
.SAT NIGHT...E wind 55 kt. Gusts to 70 kt. Seas 16 ft in the evening
building to 24 ft. Rain and snow.
.SUN...E wind 40 kt. Seas 27 ft.
.SUN NIGHT...N wind 30 kt. Seas 20 ft.
.MON...NW wind 30 kt. Seas 19 ft.
.TUE THROUGH WED...NW wind 25 kt. Seas 17 ft.

$$

PKZ787-141300-
Kiska to Attu Pacific Side-
319 PM AKST Fri Dec 13 2024

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 24 ft. Rain showers and widespread
snow showers.
.SAT...SW wind 30 kt becoming SE 50 kt in the afternoon. Gusts to 65
kt in the afternoon. Seas 20 ft. Rain and snow.
.SAT NIGHT...E wind 55 kt diminishing to 45 kt after midnight.
Seas 25 ft. Gusts to 70 kt in the evening. Rain showers.
.SUN...NW wind 40 kt. Seas 30 ft.
.SUN NIGHT...W wind 50 kt. Seas 32 ft.
.MON...W wind 40 kt. Seas 30 ft.
.TUE...W wind 25 kt. Seas 20 ft.
.WED...W wind 30 kt. Seas 18 ft.

$$

PKZ766-141300-
Pribilof Islands Nearshore Waters-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...W wind 30 kt becoming SW 20 kt after midnight. Seas
10 ft. Rain.
.SAT...W wind 15 kt. Seas 9 ft.
.SAT NIGHT...Variable wind 10 kt becoming SE 15 kt after midnight.
Seas 9 ft.
.SUN...E wind 30 kt. Seas 11 ft.
.SUN NIGHT...E wind 40 kt. Seas 15 ft.
.MON...E wind 40 kt. Seas 15 ft.
.TUE...E wind 30 kt. Seas 14 ft.
.WED...E wind 25 kt. Seas 14 ft.

$$

PKZ760-141300-
Bristol Bay greater than 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...E wind 20 kt. Seas 5 ft.
.SAT...E wind 20 kt. Seas 5 ft. Snow.
.SAT NIGHT...E wind 15 kt. Seas 4 ft.
.SUN...E wind 25 kt. Seas 7 ft.
.SUN NIGHT...E wind 35 kt. Seas 8 ft.
.MON THROUGH TUE...E wind 35 kt. Seas 10 ft.
.WED...E wind 30 kt. Seas 9 ft.

$$

PKZ761-141300-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
319 PM AKST Fri Dec 13 2024

.TONIGHT...E wind 20 kt. Seas 4 ft.
.SAT...SE wind 20 kt. Seas 4 ft.
.SAT NIGHT...E wind 10 kt increasing to 15 kt after midnight. Seas
3 ft.
.SUN...E wind 20 kt. Seas 4 ft.
.SUN NIGHT...E wind 30 kt. Seas 5 ft.
.MON...E wind 35 kt. Seas 6 ft.
.TUE THROUGH WED...E wind 30 kt. Seas 6 ft.

$$

PKZ762-141300-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...SE wind 20 kt. Seas 4 ft.
.SAT...E wind 25 kt. Seas 5 ft. Snow and rain.
.SAT NIGHT...E wind 20 kt. Seas 4 ft.  and rain. Freezing spray.
.SUN...E wind 25 kt. Seas 6 ft.
.SUN NIGHT...E wind 30 kt. Seas 6 ft.
.MON THROUGH TUE...E wind 35 kt. Seas 6 ft.
.WED...E wind 30 kt. Seas 6 ft.

$$

PKZ763-141300-
Kuskokwim Delta and Etolin Strait out to 15 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...SE wind 30 kt. Seas in ice free waters 6 ft. Freezing
spray.
.SAT...SE wind 25 kt. Seas in ice free waters 6 ft.  and rain.
.SAT NIGHT...E wind 20 kt. Seas in ice free waters 4 ft. Snow.
Freezing spray.
.SUN...E wind 25 kt. Seas in ice free waters 5 ft.
.SUN NIGHT...E wind 35 kt. Seas in ice free waters 5 ft.
.MON...NE wind 35 kt. Seas in ice free waters 5 ft.
.TUE THROUGH WED...E wind 30 kt. Seas in ice free waters 7 ft.

$$

PKZ764-141300-
Kuskokwim Delta from 15 to 80 NM-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE wind 30 kt. Seas 9 ft. Rain and snow.
.SAT...SE wind 20 kt. Seas 7 ft. Rain with snow.
.SAT NIGHT...E wind 15 kt. Seas 6 ft. Snow.
.SUN...SE wind 25 kt. Seas 8 ft.
.SUN NIGHT...E wind 35 kt. Seas 11 ft.
.MON THROUGH TUE...E wind 35 kt. Seas 14 ft.
.WED...E wind 30 kt. Seas 14 ft.

$$

PKZ765-141300-
North and West of Nunivak Island-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...E wind 30 kt. Seas 8 ft.  and rain.
.SAT...S wind 25 kt diminishing to 15 kt in the afternoon. Seas
8 ft.
.SAT NIGHT...E wind 20 kt. Seas 6 ft. Snow. Freezing spray.
.SUN...E wind 30 kt. Seas 8 ft.
.SUN NIGHT...E wind 35 kt. Seas 10 ft.
.MON THROUGH TUE...NE wind 35 kt. Seas 13 ft.
.WED...NE wind 30 kt. Seas 11 ft.

$$

PKZ767-141300-
Saint Matthew Island Waters-
319 PM AKST Fri Dec 13 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 11 ft. Snow with rain.
.SAT...SE wind 20 kt. Seas 11 ft.
.SAT NIGHT...E of Saint Matthew Island, S wind 15 kt. W of Saint
Matthew Island, S wind 15 kt becoming SE 25 kt after midnight.
Seas
11 ft.
.SUN...E wind 40 kt. Seas 12 ft.
.SUN NIGHT...E wind 45 kt. Seas 21 ft.
.MON...NE wind 45 kt. Seas 22 ft.
.TUE THROUGH WED...NE wind 40 kt. Seas 20 ft.

$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Dec 13, 5:32 AM AKST, 9 hours 47 minutes earlier.

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
532 AM AKST Fri Dec 13 2024

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

Discussion:

The primary feature this morning is the mesolow that set-up
yesterday over Cook Inlet and the southern Kenai and is still out in
the Inlet spinning away between Kenai and Ninilchik. This low
brought steady southwesterly flow into the greater Kachemak Bay area
for much of the day yesterday and through this morning. The lower
elevations of Homer have seen periods of rain, a mix, and finally
over to all snow as temperatures inch downwards. Higher elevations
of Homer, including the Bluffs and Diamond Ridge, saw steady
snowfall...becoming heavy at times and leading to some decent
snowfall accumulations. As such, a Winter Weather Advisory is in
place through 9 AM this morning. The low has moved back north and
looks to be steadily weakening, so should see a downwards trend in
precipitation intensity and extent through late morning. However,
could see some light showers linger into the afternoon period,
especially for coastal areas where the upper low over the Gulf
slowly transits east. Elsewhere across much of Southcentral,
clearing skies and cooler temperatures have allowed for pockets of
light fog and/or low stratus to develop this morning...so these
areas may take awhile to mix out with weak ridging in place.

Next up will be the large low that will drop southwards across the
Yukon and into Interior Alaska. The low will start to flatten as it
encounters a ridge over Southwest Alaska. This low will drag much
colder air southwards, along with the potential for light snowfall.
The question will be how far south will snow extend. For now, the
best chances remain over the Alaska Range and Copper River Basin,
but light snow may be able to work down into the Mat Valley and
Anchorage Bowl on Saturday. Models then have the low drifting east
towards the Seward Peninsula, though they are not in great agreement
on the strength or shape of the low. The NAM is the slowest model
solution in moving this feature west and has the low more elongated.
Both the GFS and ECMWF move the low westwards much faster and deepen
it by the time it reaches the Peninsula.

- PP

&&

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

Quite a few updates overnight due to increasing forecast
confidence with the development of a compact low along the front
and, therefore, the track of that front across the region.
Otherwise, still expecting the most active weather across the
Bering Sea and Aleutian Islands from Saturday afternoon through
Sunday afternoon, with moderate to heavy precipitation and the
potential for gusts up to 70-80 mph. For Southwest Alaska,
generally trending cooler with some light precipitation expected.

Diving into the details... a distant low near the Kamchatka
Peninsula is pushing its front eastward across the Bering Sea. The
front brought moderate rain rates and gales to Adak and Atka
overnight, and it's poised to move across the Eastern Aleutians
and Pribilof Islands through today. As mentioned above, there were
some major forecast updates as models came into better agreement
with a compact low forming along the front. The compact low is
forecast to move across the Pribilof Islands from late morning
through early afternoon today, bringing gales as it sweeps
through. The low will then move north between Saint Matthew and
Nunivak Islands before exiting into the Bering Strait. As such,
the current forecast reflects stronger winds around the compact
low, as well as changes to the timing of winds and precipitation
as the front curves, then shears apart, with the northward exit
of the low.

For Southwest Alaska, the main story this morning will be fog
along the coast, and lingering snow for the Lower Kuskokwim
Valley, with about an additional inch of snow expected through
today. The compact low and front approach Southwest Alaska this
afternoon and evening, but impacts should remain low as both
features will be weakening. Expect light rain for the Alaska
Peninsula, with light snow and stronger winds for the Kuskokwim
Delta coast. Rain chances increase by Saturday as a shortwave
moving northwards helps draw in moisture from a North Pacific low.
Precipitation amounts look quite low for now; the biggest
challenge will be honing in on the timing of precipitation given
model disagreements with this weak feature. While the timing is
uncertain, the areas most likely to be impacted look to be Bristol
Bay (west of Dillingham) and the Kuskokwim Delta. Finally, as a
strong ridge develops over Alaska and Canada, expect northerly
flow to usher in a drop in temperatures. Temperatures will
steadily decline, dipping into the single digits and below zero
along the Kuskokwim River, and into the teens for Bristol Bay, by
Sunday night.

From Saturday afternoon through Sunday, more active weather is on
the way for the Bering/Aleutians as a strong low moves in. This
will be a rather impressive system, with central pressure dropping
as low as 940 mb as the system approaches the Western Aleutians.
Given the strength of this system, confidence is very high that
there will be storm force winds around the low, with the potential
for hurricane force gusts. We are currently monitoring the
potential for high winds (75+ mph) through the Western and Central
Aleutians along the front, from Saturday afternoon through early
Sunday morning. Stay tuned as we continue to assess this storm
system.

-Chen

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

The long-term forecast on Monday should begin with high pressure
situated over interior Alaska and along the ALCAN border.
Meanwhile, a large occluded low is forecast over the Western and
Central Aleutians with the front extending southeastward from the
Pribilof Islands to across the Alaska Peninsula. Thus, a very
active pattern should continue across the Bering and Aleutians
with windy conditions and numerous showers (a mix of both rain and
snow) to linger through Tuesday.

Forecast confidence is low with resolving the finer details. It
is increasingly likely that one or multiple lows will develop on
the Pacific side of the Aleutians before wrapping north and
northwestward into the parent upper low over the Bering Monday
through Wednesday. A brief break from unsettled conditions may
develop across the Bering on Thursday as high pressure develops
behind a departing trough into the Gulf of Alaska and the next
upper low into the western Bering.

Elsewhere, all indications are that Southcentral will retain
above normal temperatures with continued southerly flow into the
region. After starting out the period relatively dry on Monday, a
series of lows are progged to lift northward into the Gulf Tuesday
and then again on Thursday. This will result in potentially heavy
shower activity at times, especially into the Gulf coast.

-BL

&&.AVIATION...

PANC...Over the terminal, conditions are expected to remain
largely VFR, with a chance for MVFR ceilings most likely in the
early morning Friday and late Friday afternoon into Saturday
morning. Light southeasterly winds early this morning to become
light and variable by the late morning, persisting through the
remainder of the forecast period.

&&

In the hours before

Preliminary Local Storm Report
National Weather Service Anchorage AK
1012 AM AKST Fri Dec 13 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     Freezing Rain    4 W Sterling            60.51N 150.91W
12/13/2024  M0.25 Inch       Kenai Peninsula    AK   Public

&&

TK

Storm Warnings in Alaska, 2024Every storm warning in 2024

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.