Storm Warning 180, NWS Anchorage, AK

Issued

Dec 30, 2023, 3:43 PM AKST (00:43 UTC)

Expired

Dec 31, 2023, 4:30 AM AKST

In force

13 hr

Issued by

NWS Anchorage, AK

227 
FZAK52 PAFC 310043
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
343 PM AKST Sat Dec 30 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.

PKZ199-311330-
343 PM AKST Sat Dec 30 2023
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 968 mb low 160 NE of Shemya moves 140 nm N of Adak at 980 mb 
Sun evening before weakening over the western Bering Mon evening. 
A N Pacific low deepens to 954 mb 250 nm SE of Shemya Mon evening.
A second N Pacific low approaches the Pacific side of the Alaska 
Peninsula Mon evening at 975 mb.

$$

PKZ750-311330-
Sitkinak to Castle Cape out to 15 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN...SE wind 15 kt becoming E 30 kt in the afternoon. Seas 6 ft.
Rain and snow.
.SUN NIGHT...E wind 45 kt. Seas 9 ft building to 14 ft after
midnight. Rain showers.
.MON...E wind 45 kt. Seas 21 ft.
.MON NIGHT...SE wind 40 kt. Seas 17 ft.
.TUE...SE wind 50 kt. Seas 17 ft.
.WED...S wind 35 kt. Seas 14 ft.
.THU...SW wind 30 kt. Seas 14 ft.

$$

PKZ751-311330-
Sitkinak to Castle Cape from 15 to 100 NM-
343 PM AKST Sat Dec 30 2023

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 11 ft.
.SUN...SE wind 30 kt. Seas 11 ft. Rain and snow.
.SUN NIGHT...E wind 50 kt. Seas 17 ft building to 25 ft after midnight.
Rain.
.MON...E wind 45 kt. Seas 29 ft.
.MON NIGHT...SE wind 35 kt. Seas 21 ft.
.TUE THROUGH WED...S wind 45 kt. Seas 23 ft.
.THU...SW wind 35 kt. Seas 24 ft.

$$

PKZ752-311330-
Castle Cape to Cape Tolstoi out to 15 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...S wind 15 kt. Seas 6 ft.
.SUN...E wind 15 kt increasing to 30 kt in the afternoon. Seas 7
ft. Rain showers and snow.
.SUN NIGHT...E wind 40 kt. Seas 11 ft building to 17 ft after
midnight. Rain and snow.
.MON...E wind 40 kt. Seas 23 ft.
.MON NIGHT...SE wind 25 kt. Seas 20 ft.
.TUE...SE wind 40 kt. Seas 17 ft.
.WED...S wind 40 kt. Seas 12 ft.
.THU...SW wind 30 kt. Seas 12 ft.

$$

PKZ753-311330-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 13 ft.
.SUN...E wind 30 kt. Seas 12 ft. Rain and snow.
.SUN NIGHT...E wind 45 kt. Seas 16 ft building to 23 ft after midnight.
Snow with rain showers.
.MON...NE wind 40 kt. Seas 27 ft.
.MON NIGHT...S wind 30 kt. Seas 19 ft.
.TUE THROUGH WED...SW wind 45 kt. Seas 25 ft.
.THU...SW wind 40 kt. Seas 26 ft.

$$

PKZ754-311330-
Cape Tolstoi to Cape Sarichef out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 9 ft.
.SUN...SE wind 15 kt becoming NE 25 kt in the afternoon. Seas 7 ft.
.SUN NIGHT...N wind 25 kt. Seas 7 ft.
.MON...NW wind 25 kt. Seas 10 ft.
.MON NIGHT...SE wind 40 kt. Seas 9 ft.
.TUE...SE wind 45 kt. Seas 16 ft.
.WED...SW wind 40 kt. Seas 18 ft.
.THU...SW wind 35 kt. Seas 17 ft.

$$

PKZ755-311330-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 14 ft.
.SUN...NE wind 25 kt. Seas 11 ft.
.SUN NIGHT...N wind 30 kt. Seas 16 ft. Snow showers and rain showers.
.MON...NW wind 35 kt. Seas 24 ft.
.MON NIGHT...S wind 50 kt. Seas 17 ft.
.TUE...S wind 50 kt. Seas 25 ft.
.WED...SW wind 45 kt. Seas 27 ft.
.THU...SW wind 40 kt. Seas 27 ft.

$$

PKZ756-311330-
Port Heiden to Nelson Lagoon out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SE wind 15 kt. Seas 3 ft.
.SUN...SE wind 15 kt becoming E 25 kt in the afternoon. Seas 3 ft.
.SUN NIGHT...E wind 30 kt. Seas 8 ft. Snow showers and rain.
.MON...E wind 35 kt. Seas 9 ft.
.MON NIGHT...SE wind 25 kt. Seas 7 ft.
.TUE...SE wind 40 kt. Seas 6 ft.
.WED...S wind 35 kt. Seas 11 ft.
.THU...SW wind 30 kt. Seas 14 ft.

$$

PKZ757-311330-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 5 ft.
.SUN...SE wind 15 kt becoming E 25 kt in the afternoon. Seas 6 ft.
.SUN NIGHT...E wind 35 kt. Seas 10 ft.
.MON...E wind 40 kt. Seas 12 ft.
.MON NIGHT...SE wind 30 kt. Seas 10 ft.
.TUE THROUGH WED...S wind 40 kt. Seas 15 ft.
.THU...SW wind 35 kt. Seas 17 ft.

$$

PKZ758-311330-
Nelson Lagoon to Cape Sarichef out to 15 NM-
343 PM AKST Sat Dec 30 2023

.TONIGHT...S wind 20 kt. Seas 4 ft.
.SUN...SE wind 15 kt. Seas 5 ft.
.SUN NIGHT...N wind 20 kt. Seas 6 ft. Snow showers.
.MON...NW wind 20 kt. Seas 7 ft.
.MON NIGHT...S wind 25 kt. Seas 6 ft.
.TUE...SE wind 40 kt. Seas 7 ft.
.WED...SW wind 40 kt. Seas 21 ft.
.THU...SW wind 35 kt. Seas 21 ft.

$$

PKZ759-311330-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 6 ft.
.SUN...E wind 20 kt. Seas 6 ft.
.SUN NIGHT...NE wind 25 kt. Seas 7 ft.
.MON...N wind 25 kt. Seas 9 ft.
.MON NIGHT...SE wind 25 kt. Seas 9 ft.
.TUE...SE wind 40 kt. Seas 12 ft.
.WED THROUGH THU...SW wind 40 kt. Seas 23 ft.

$$

PKZ770-311330-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

.TONIGHT...SW wind 15 kt. Seas 5 ft.
.SUN...SE wind 15 kt. Seas 5 ft.
.SUN NIGHT...W wind 15 kt. Seas 5 ft.
.MON...W wind 25 kt. Seas 6 ft.
.MON NIGHT...E wind 45 kt. Seas 10 ft.
.TUE...S wind 45 kt. Seas 10 ft.
.WED...SW wind 50 kt. Seas 24 ft.
.THU...SW wind 40 kt. Seas 22 ft.

$$

PKZ772-311330-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.SUN...SE wind 15 kt. Seas 7 ft.
.SUN NIGHT...SW wind 15 kt. Seas 6 ft.
.MON...W wind 20 kt. Seas 7 ft.
.MON NIGHT...E wind 35 kt. Seas 12 ft.
.TUE...SE wind 45 kt. Seas 17 ft.
.WED...SW wind 50 kt. Seas 27 ft.
.THU...SW wind 40 kt. Seas 24 ft.

$$

PKZ771-311330-
Unalaska Bay-
343 PM AKST Sat Dec 30 2023

.TONIGHT...SW wind 10 kt in the evening becoming variable less than
10 kt. Seas 2 ft.
.SUN...S wind 10 kt. Seas 2 ft.
.SUN NIGHT...W wind 10 kt. Seas 2 ft.
.MON...W wind 20 kt. Seas 3 ft.
.MON NIGHT...SE wind 40 kt. Seas 6 ft.
.TUE...S wind 40 kt. Seas 5 ft.
.WED...SW wind 40 kt. Seas 5 ft.
.THU...SW wind 30 kt. Seas 5 ft.

$$

PKZ773-311330-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 15 kt. Seas 10 ft.
.SUN...S wind 15 kt. Seas 7 ft.
.SUN NIGHT...W wind 20 kt. Seas 6 ft.
.MON...W wind 30 kt. Seas 11 ft.
.MON NIGHT...E wind 45 kt. Seas 19 ft.
.TUE...S wind 50 kt. Seas 26 ft.
.WED...SW wind 50 kt. Seas 19 ft.
.THU...SW wind 40 kt. Seas 16 ft.

$$

PKZ774-311330-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 14 ft.
.SUN...S wind 15 kt. Seas 11 ft.
.SUN NIGHT...W wind 30 kt. Seas 10 ft.
.MON...W wind 35 kt. Seas 19 ft.
.MON NIGHT...SE wind 50 kt. Seas 21 ft.
.TUE...S wind 45 kt. Seas 30 ft.
.WED...SW wind 50 kt. Seas 25 ft.
.THU...SW wind 40 kt. Seas 23 ft.

$$

PKZ775-311330-
Nikolski to Seguam Bering Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.SUN...SW wind 20 kt. Seas 8 ft.
.SUN NIGHT...SW wind 25 kt. Seas 8 ft.
.MON...S wind 20 kt. Seas 8 ft.
.MON NIGHT...E wind 35 kt. Seas 17 ft.
.TUE THROUGH WED...W wind 50 kt. Seas 22 ft.
.THU...SW wind 40 kt. Seas 19 ft.

$$

PKZ776-311330-
Nikolski to Seguam Bering Side from 15 to 85 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 10 ft.
.SUN...S wind 20 kt. Seas 8 ft.
.SUN NIGHT...S wind 25 kt. Seas 8 ft.
.MON...S wind 20 kt. Seas 8 ft.
.MON NIGHT...E wind 30 kt. Seas 17 ft.
.TUE...NW wind 50 kt. Seas 19 ft.
.WED...W wind 50 kt. Seas 25 ft.
.THU...SW wind 40 kt. Seas 21 ft.

$$

PKZ777-311330-
Nikolski to Seguam Pacfic Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 11 ft.
.SUN...SW wind 25 kt. Seas 9 ft.
.SUN NIGHT...SW wind 25 kt. Seas 9 ft.
.MON...S wind 25 kt. Seas 10 ft.
.MON NIGHT...E wind 35 kt. Seas 23 ft.
.TUE...W wind 50 kt. Seas 32 ft.
.WED...W wind 50 kt. Seas 22 ft.
.THU...SW wind 40 kt. Seas 18 ft.

$$

PKZ778-311330-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 15 ft.
.SUN...SW wind 25 kt. Seas 12 ft.
.SUN NIGHT...SW wind 25 kt. Seas 14 ft.
.MON...S wind 30 kt. Seas 14 ft.
.MON NIGHT...E wind 40 kt. Seas 26 ft.
.TUE...SW wind 50 kt. Seas 33 ft.
.WED...W wind 50 kt. Seas 25 ft.
.THU...SW wind 40 kt. Seas 21 ft.

$$

PKZ780-311330-
Seguam to Adak Bering Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 8 ft.
.SUN...SW wind 25 kt. Seas 7 ft.
.SUN NIGHT...SW wind 25 kt. Seas 8 ft.
.MON...SE wind 25 kt. Seas 8 ft.
.MON NIGHT...NE wind 30 kt. Seas 16 ft.
.TUE...NW wind 45 kt. Seas 15 ft.
.WED...W wind 45 kt. Seas 18 ft.
.THU...SW wind 40 kt. Seas 14 ft.

$$

PKZ781-311330-
Seguam to Adak Bering Side from 15 to 85 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 12 ft.
.SUN...S wind 25 kt. Seas 10 ft.
.SUN NIGHT...SW wind 30 kt. Seas 11 ft.
.MON...S wind 20 kt. Seas 7 ft.
.MON NIGHT...NE wind 30 kt. Seas 16 ft.
.TUE...NW wind 45 kt. Seas 17 ft.
.WED...W wind 50 kt. Seas 21 ft.
.THU...SW wind 40 kt. Seas 16 ft.

$$

PKZ782-311330-
Seguam to Adak Pacific Side out to 15 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt increasing to 30 kt after midnight. Seas 11 ft.
.SUN...SW wind 25 kt. Seas 12 ft.
.SUN NIGHT...W wind 30 kt. Seas 13 ft.
.MON...SE wind 30 kt. Seas 12 ft.
.MON NIGHT...NE wind 35 kt. Seas 20 ft.
.TUE THROUGH WED...W wind 45 kt. Seas 18 ft.
.THU...SW wind 40 kt. Seas 14 ft.

$$

PKZ783-311330-
Seguam to Adak Pacific Side from 15 to 75 NM-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 20 kt increasing to 30 kt after midnight. 
Seas 14 ft. Snow showers.
.SUN...SW wind 30 kt. Seas 16 ft.
.SUN NIGHT...W wind 30 kt. Seas 17 ft.
.MON...SE wind 35 kt. Seas 14 ft.
.MON NIGHT...NE wind 40 kt. Seas 22 ft.
.TUE...W wind 45 kt. Seas 21 ft.
.WED...W wind 50 kt. Seas 22 ft.
.THU...SW wind 40 kt. Seas 16 ft.

$$

PKZ784-311330-
Adak to Kiska Bering Side-
343 PM AKST Sat Dec 30 2023

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 17 ft.
.SUN...SW wind 30 kt. Seas 12 ft.
.SUN NIGHT...W wind 30 kt diminishing to 20 kt after midnight. 
Seas 10 ft.
.MON...SE wind 15 kt. Seas 8 ft.
.MON NIGHT...N wind 15 kt. Seas 11 ft.
.TUE THROUGH WED...W wind 45 kt. Seas 16 ft.
.THU...SW wind 35 kt. Seas 13 ft.

$$

PKZ785-311330-
Adak to Kiska Pacific Side-
343 PM AKST Sat Dec 30 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...SW wind 35 kt. Seas 18 ft. Snow showers.
.SUN...W wind 40 kt. Seas 21 ft. Snow showers.
.SUN NIGHT...W wind 30 kt. Seas 18 ft.
.MON...E wind 20 kt. Seas 10 ft.
.MON NIGHT...NW wind 20 kt. Seas 14 ft.
.TUE THROUGH WED...SW wind 45 kt. Seas 19 ft.
.THU...S wind 35 kt. Seas 15 ft.

$$

PKZ786-311330-
Kiska to Attu Bering Side-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 16 ft. Snow showers.
.SUN...NW wind 30 kt. Seas 14 ft.
.SUN NIGHT...W wind 25 kt. Seas 13 ft.
.MON...Variable wind 10 kt. Seas 9 ft.
.MON NIGHT...NW wind 20 kt. Seas 7 ft.
.TUE...NW wind 40 kt. Seas 13 ft.
.WED...W wind 40 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 13 ft.

$$

PKZ787-311330-
Kiska to Attu Pacific Side-
343 PM AKST Sat Dec 30 2023

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...W wind 40 kt. Seas 21 ft. Snow showers and rain showers.
.SUN...W wind 40 kt. Seas 20 ft.  and rain showers.
.SUN NIGHT...W wind 30 kt becoming NW 15 kt after midnight. Seas 16 ft.
.MON...NW wind 15 kt. Seas 9 ft.
.MON NIGHT...NW wind 25 kt. Seas 10 ft.
.TUE...W wind 40 kt. Seas 17 ft.
.WED...SW wind 40 kt. Seas 17 ft.
.THU...NW wind 30 kt. Seas 16 ft.

$$

PKZ766-311330-
Pribilof Islands Nearshore Waters-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY THROUGH SUNDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 9 ft.
.SUN...S wind 15 kt. Seas 9 ft.
.SUN NIGHT...E wind 20 kt. Seas 8 ft.
.MON...Variable wind 10 kt. Seas 6 ft.
.MON NIGHT...NE wind 15 kt. Seas 7 ft.
.TUE...NE wind 30 kt. Seas 17 ft.
.WED THROUGH THU...SW wind 35 kt. Seas 18 ft.

$$

PKZ760-311330-
Bristol Bay greater than 15 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas 3 ft. Freezing spray.
.SUN...E wind 25 kt. Seas 5 ft. Snow.
.SUN NIGHT...E wind 35 kt. Seas 8 ft.
.MON...E wind 40 kt. Seas 10 ft.
.MON NIGHT...E wind 35 kt. Seas 9 ft.
.TUE...E wind 45 kt. Seas 12 ft.
.WED...SE wind 40 kt. Seas 9 ft.
.THU...S wind 30 kt. Seas 12 ft.

$$

PKZ761-311330-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...E wind 10 kt. Seas in ice free waters 2 ft.
.SUN...E wind 10 kt increasing to 20 kt in the afternoon. 
Seas in ice free waters 2 ft. Snow.
.SUN NIGHT...E wind 35 kt. Seas in ice free waters 5 ft. Snow and rain.
.MON AND MON NIGHT...E wind 35 kt. Seas in ice free waters 6 ft.
.TUE...SE wind 45 kt. Seas in ice free waters 6 ft.
.WED...SE wind 35 kt. Seas in ice free waters 5 ft.
.THU...S wind 30 kt. Seas in ice free waters 9 ft.

$$

PKZ762-311330-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NE wind 20 kt. Heavy freezing spray before midnight.
.SUN...E wind 20 kt.
.SUN NIGHT...NE wind 35 kt.
.MON...E wind 35 kt.
.MON NIGHT...E wind 30 kt.
.TUE...E wind 45 kt.
.WED...SE wind 35 kt.
.THU...S wind 25 kt.

$$

PKZ763-311330-
Kuskokwim Delta and Etolin Strait out to 15 NM-
343 PM AKST Sat Dec 30 2023

...BRISK WIND ADVISORY SUNDAY NIGHT...

.TONIGHT...E wind 20 kt.
.SUN...E wind 20 kt.
.SUN NIGHT...E wind 30 kt. Snow.
.MON AND MON NIGHT...E wind 35 kt.
.TUE...E wind 45 kt.
.WED...E wind 40 kt.
.THU...S wind 25 kt.

$$

PKZ764-311330-
Kuskokwim Delta from 15 to 80 NM-
343 PM AKST Sat Dec 30 2023

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas in ice free waters 5 ft. Freezing spray.
.SUN...E wind 25 kt. Seas in ice free waters 6 ft.
.SUN NIGHT...E wind 35 kt. Seas in ice free waters 10 ft. Freezing spray.
Snow.
.MON...E wind 40 kt. Seas in ice free waters 12 ft.
.MON NIGHT...E wind 35 kt. Seas in ice free waters 11 ft.
.TUE...E wind 45 kt. Seas in ice free waters 14 ft.
.WED...E wind 40 kt. Seas in ice free waters 13 ft.
.THU...S wind 30 kt. Seas in ice free waters 12 ft.

$$

PKZ765-311330-
North and West of Nunivak Island-
343 PM AKST Sat Dec 30 2023

...SMALL CRAFT ADVISORY SUNDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas in ice free waters 4 ft. Freezing spray.
.SUN...E wind 20 kt. Seas in ice free waters 4 ft.
.SUN NIGHT...E wind 25 kt. Seas in ice free waters 5 ft. Freezing spray.
Snow.
.MON AND MON NIGHT...E wind 30 kt. Seas in ice free waters 5 ft.
.TUE THROUGH WED...NE wind 40 kt. Seas in ice free waters 9 ft.
.THU...NE wind 25 kt. Seas in ice free waters 8 ft.

$$

PKZ767-311330-
Saint Matthew Island Waters-
343 PM AKST Sat Dec 30 2023

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY THROUGH SUNDAY...

.TONIGHT...E wind 25 kt E of Saint Matthew Island...E 35 kt W of
Saint Matthew Island. Seas 14 ft. Heavy freezing spray N of Saint 
Matthew Island.
.SUN...E wind 20 kt E of Saint Matthew Island...E 30 kt W of Saint
Matthew Island. Seas 10 ft. Heavy freezing spray N of Saint Matthew Island.
.SUN NIGHT...E wind 25 kt. Seas 8 ft. Freezing spray.
.MON AND MON NIGHT...E wind 25 kt. Seas 8 ft.
.TUE...NE wind 40 kt. Seas 13 ft.
.WED...N wind 35 kt. Seas 12 ft.
.THU...NW wind 30 kt. Seas 10 ft.

$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Dec 30, 5:48 AM AKST, 9 hours 55 minutes earlier.

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
548 AM AKST Sat Dec 30 2023

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

Fog has improved overnight for the Anchorage area overall. There
is still some lingering fog though around the area, but it is
becoming more patchy and should continue to improve as the upper
level low begins to shift north. Winds are still quite gusty this
morning through the gaps along the Gulf coast. It will take
sometime for the cold air to funnel through as flow begins to
shift southerly with an active pattern returning to Southcentral
Alaska. Low pressure pushing up the SE Panhandle this morning will
bring light precipitation to McCarthy and the Wrangell Mountains
this morning.

Flow will gradually shift southerly throughout the day as a
transient ridge moves through and a trough following behind lifts
through Kodiak into the Gulf through Sunday morning. Models have
continued to trend a little slower with the progression of the
pattern shift, but overall the expectation is on track. Moist
southerly flow will bring increased precipitation chances to
Kodiak Island by this afternoon, spreading to the Kenai Peninsula
Gulf Coast this afternoon into tonight and along the rest of the
Gulf Coast midnight through Sunday. Precipitation is expected to
begin as snow and gradually transition to rain for Saturday night
in Kodiak. A second, more energetic low will move in behind the
trough through Kodiak Sunday. The position of this low has been
more challenging and will play a factor in where precipitation
will ultimately set up from Kodiak and the western Gulf and to the
Kenai Peninsula and Cook Inlet. The Gulf Coast is certain to get
plenty of precipitation.

As the low moves toward the Kenai Peninsula Sunday, a band of
snow could develop along Cook Inlet affecting Kenai up to the
Susitna Valley. Snowfall cannot be ruled out for Anchorage either.
For now though, not anticipating widespread snowfall for
Anchorage, with the best chances expected along the Alaska Gulf
coast as easterly downsloping winds should keep areas further
inland dry. Expect snow to linger for higher elevations though as
far inland as the Alaska Range. While snow will linger for the
northwestern Gulf coast, most areas across Southcentral will have
snow potential ease a bit with a passing ridge Sunday night. Then
for Monday morning, a repeat returns with yet another trough
moving along the same path as the previous, reaching Kodiak early
and spreading north in the afternoon.

&&

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

A very slow moving front associated with a large low stalled out
over the Bering Sea is now draped between Bristol Bay and the
Kuskokwim Delta Coast this morning. Farther inland, cold
temperatures as low as -20 to -30 are holding in place this
morning where an upper level ridge is retreating north farther
into the western interior. Steady light snow is now pushing into
much of the coastal portions of the Kuskokwim Delta along the
front. More light snow is showing up on the King Salmon radar as
of this writing, and is likely to reach the northern Bristol Bay
coast over the next few hours. The front will lose most of its
definition as it moves farther inland through tonight, giving way
to scattered snow showers that will spread across Southwest from
south to north.

By early Sunday, a very negatively-tilted shortwave trough will
lift north from the the AKPen swiftly across Bristol Bay and then
up into the Lower Kuskokwim Valley. This is looking increasingly
likely to bring a quick-hitting round of snow to parts of this
corridor, mainly close to the Alaska Range, including near
Sleetmute and Iliamna. Later on Sunday, a much stronger system
will come into the picture, as a strong North Pacific low runs up
against a strong upper ridge building over the Gulf and into the
southern Mainland. This will set up a very strong northeast
southwest pressure gradient as the low slowly approaches the
southern Alaska Peninsula through Monday. Strong, gusty east winds
will steadily develop late on Sunday and persist well into Monday,
particularly along the Alaska Peninsula and up across much of
Bristol Bay. This progression of this low has slowed down
compared to earlier expectations, and the low is looking more
likely to weaken quickly as it finally reaches the Alaska
Peninsula late on Monday night. Even so, widespread wind gusts
between 35 and 50 mph are still expected to develop late on Sunday
across all but the Lower Kuskokwim Valley starting Sunday
afternoon and lasting well into Monday night. Any precipitation
with this system will remain light and intermittent, with warming
temperatures likely to change any snow over to rain for much of
Bristol Bay by Monday.

-AS

&&

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

An active pattern is set to continue with multiple strong low
pressure systems expected to affect parts of the Bering Sea region
in the coming days. This morning, a stacked and weakening low
continues to spin in place over the western Bering Sea as a sea of
snow and rain showers continues to rotate around it into much of
the Aleutian Chain and Pribilofs at times. This low will continue
to meander nearly aimlessly as it slowly fills through Sunday,
but will retain enough strength to keep prolonged westerly gales
in place over the western Aleutians until Sunday afternoon. Late
on Sunday, a North Pacific low will lift slowly north and closer
to the AKPen as it runs into a strong ridge developing to its
north. This will help support a strong wind field to the north of
the center, and sustained gales will develop out towards the
easternmost parts of the Bering Sea and continue through Monday as
the low then quickly weakens before it crosses the Alaska
Peninsula. At the same time, another potent low will lift east-
northeast into the central to eastern Aleutian Chain, effectively
absorbing the remnants of the low crossing into the eastern Bering
by Monday night. Uncertainty for the exact track of this third
system is still quite high at this time, but continued strong
winds in gale to storm force range are likely to impact the
central and eastern parts of the Aleutians as this system moves in
from Monday to Monday night.

-AS

&&

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

Continued unsettled weather into the New Year for most of
Southern Alaska. Forecast models begin well, but diverge in
strengths and tracks of individual systems through the end of the
week. The longwave trough that extends from the Russian Far East
through Bristol Bay into the Gulf of Alaska will move to the North
and undergo some reorientation as several significant shortwaves
work around the center through the forecast period. With well
developed surface lows and frontal systems moving across the
region, widespread precipitation and gusty winds will affect the
Aleutians and Alaska Peninsula into Southwest Alaska through
Friday. Snow prevails across the Northern portions, while mixed
rain and snow or rain push over the Aleutians and AKPEN into
Southwest Alaska through the period. High end gale force winds
with local areas of storm force gusts spreads across the Aleutians
and Bering into the AKPEN and Southwest Alaska up to Nunivak
Island. A significant shortwave repeats the process over the
Central Aleutians for Wednesday and Thursday.

The active weather continues its Eastward track, as strong
surface lows bring heavy rains to parts of Alaska Peninsula and
Kodiak Island starting New Year's Day, and spreading to the
Eastern Kenai Peninsula and Southcentral coasts through midweek.
Gale force gap winds spread along the AKPEN, across Kodiak Island
and through the Barren Islands and Kamishak Bay, diminishing late
Wednesday.

Kutz

&&

.AVIATION...

PANC...Mostly similar conditions through early this morning as we
have seen over the past couple of days. Low stratus and/or fog is
likely over the airport and should lift through late morning/early
afternoon. Winds will be overall light and northerly. There is a
chance for a quick shot of snow later tonight with cloud ceilings
dropping below 5000'. Winds will remain northerly but pick up to
around 10 knots early (~16Z) Sunday morning.

KM

&&

Storm Warnings in Alaska, 2023Every storm warning in 2023

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