Storm Warning 81, NWS Anchorage, AK

Issued

Apr 20, 2026, 3:15 PM AKDT (23:15 UTC)

Expired

Apr 21, 2026, 3:45 AM AKDT

In force

13 hr

Issued by

NWS Anchorage, AK

462 
FZAK52 PAFC 202315
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
315 PM AKDT Mon Apr 20 2026

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.

PKZ199-211145-
315 PM AKDT Mon Apr 20 2026
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 989 mb low 180 nm S of Kiska Island moves to 125 nm N of Atka 
at 975 mb by Wed afternoon.

$$

PKZ750-211145-
Sitkinak to Castle Cape out to 15 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SW wind 25 kt. Seas 7 ft.
.TUE...S wind 25 kt. Seas 5 ft.
.TUE NIGHT...SE wind 30 kt. Seas 7 ft.
.WED...S wind 30 kt. Seas 10 ft.
.WED NIGHT...S wind 20 kt. Seas 9 ft.
.THU...SE wind 20 kt. Seas 7 ft.
.FRI...SE wind 15 kt. Seas 7 ft.
.SAT...SE wind 20 kt. Seas 6 ft.

$$

PKZ751-211145-
Sitkinak to Castle Cape from 15 to 100 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 11 ft.
.TUE...S wind 25 kt. Seas 9 ft.
.TUE NIGHT...S wind 35 kt. Seas 12 ft. Rain showers.
.WED...S wind 35 kt. Seas 15 ft.
.WED NIGHT...S wind 25 kt. Seas 14 ft.
.THU THROUGH FRI...S wind 20 kt. Seas 13 ft.
.SAT...S wind 20 kt. Seas 9 ft.

$$

PKZ752-211145-
Castle Cape to Cape Tolstoi out to 15 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SW wind 25 kt. Seas 5 ft. Rain.
.TUE...SE wind 15 kt increasing to 25 kt in the afternoon.
Seas 4 ft. Rain.
.TUE NIGHT...SE wind 30 kt. Seas 9 ft. Rain.
.WED...S wind 25 kt. Seas 9 ft.
.WED NIGHT...S wind 30 kt. Seas 7 ft.
.THU...S wind 30 kt. Seas 7 ft.
.FRI...S wind 15 kt. Seas 6 ft.
.SAT...SE wind 25 kt. Seas 7 ft.

$$

PKZ753-211145-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 11 ft.
.TUE...S wind 30 kt. Seas 9 ft.
.TUE NIGHT...SE wind 40 kt. Seas 15 ft. Rain.
.WED...S wind 30 kt. Seas 16 ft.
.WED NIGHT...S wind 25 kt. Seas 12 ft.
.THU...S wind 25 kt. Seas 14 ft.
.FRI...S wind 15 kt. Seas 11 ft.
.SAT...S wind 20 kt. Seas 11 ft.

$$

PKZ754-211145-
Cape Tolstoi to Cape Sarichef out to 15 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...S wind 20 kt. Seas 7 ft. Rain.
.TUE...SE wind 25 kt increasing to 35 kt in the afternoon.
Seas 10 ft. Rain.
.TUE NIGHT...SE wind 35 kt. Seas 13 ft. Rain.
.WED...S wind 30 kt. Seas 12 ft.
.WED NIGHT...S wind 40 kt. Seas 14 ft.
.THU...S wind 35 kt. Seas 14 ft.
.FRI...S wind 20 kt. Seas 9 ft.
.SAT...SE wind 30 kt. Seas 9 ft.

$$

PKZ755-211145-
South of the AK Peninsula Cape Tolstoi to Unalga Pass from 15 to
100 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight.
Seas 10 ft.
.TUE...SE wind 40 kt. Seas 14 ft.
.TUE NIGHT...S wind 40 kt. Seas 16 ft. Rain.
.WED AND WED NIGHT...S wind 30 kt. Seas 17 ft.
.THU...S wind 25 kt. Seas 18 ft.
.FRI...SW wind 20 kt. Seas 12 ft.
.SAT...S wind 25 kt. Seas 11 ft.

$$

PKZ756-211145-
Port Heiden to Nelson Lagoon out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas in ice free waters 2 ft.
.TUE...SE wind 25 kt. Seas in ice free waters 2 ft.
.TUE NIGHT...SE wind 30 kt. Seas in ice free waters 2 ft. Rain.
.WED...S wind 25 kt. Seas in ice free waters 2 ft.
.WED NIGHT...SE wind 20 kt. Seas in ice free waters 2 ft.
.THU...S wind 20 kt. Seas in ice free waters 2 ft.
.FRI...Variable wind 10 kt. Seas in ice free waters 2 ft.
.SAT...SE wind 15 kt. Seas in ice free waters 2 ft.

$$

PKZ757-211145-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SW wind 25 kt becoming S 15 kt after midnight.
Seas in ice free waters 10 ft.
.TUE...SE wind 30 kt. Seas in ice free waters 7 ft.
.TUE NIGHT...SE wind 35 kt. Seas in ice free waters 7 ft. Rain.
.WED AND WED NIGHT...SE wind 25 kt. Seas in ice free waters 6 ft.
.THU...S wind 25 kt. Seas in ice free waters 7 ft.
.FRI...SE wind 15 kt. Seas in ice free waters 5 ft.
.SAT...SE wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ758-211145-
Nelson Lagoon to Cape Sarichef out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 8 ft.
.TUE...SE wind 30 kt. Seas 5 ft.
.TUE NIGHT...SE wind 35 kt. Seas 4 ft. Rain.
.WED AND WED NIGHT...S wind 30 kt. Seas 5 ft.
.THU...S wind 30 kt. Seas 6 ft.
.FRI...S wind 15 kt. Seas 3 ft.
.SAT...SE wind 25 kt. Seas 4 ft.

$$

PKZ759-211145-
Nelson Lagoon to Unalga Pass 15 to 70 nm-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 30 kt. Seas 11 ft. Rain.
.TUE...SE wind 40 kt. Seas 10 ft.
.TUE NIGHT...SE wind 40 kt. Seas 11 ft. Rain.
.WED...S wind 35 kt. Seas 11 ft.
.WED NIGHT...S wind 30 kt. Seas 13 ft.
.THU...S wind 30 kt. Seas 13 ft.
.FRI...S wind 20 kt. Seas 7 ft.
.SAT...SE wind 30 kt. Seas 6 ft.

$$

PKZ768-211145-
Unimak Pass-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain.
.TUE...SE wind 40 kt. Seas 9 ft building to 14 ft in the
afternoon. Rain.
.TUE NIGHT...S wind 35 kt. Seas 14 ft.
.WED AND WED NIGHT...S wind 35 kt. Seas 16 ft.
.THU...S wind 30 kt. Seas 14 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT...S wind 25 kt. Seas 10 ft.

$$

PKZ770-211145-
Unalga Pass to Nikolski Bering Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 30 kt. Seas 7 ft. Rain.
.TUE...SE wind 35 kt. Seas 6 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 6 ft.
.WED AND WED NIGHT...S wind 35 kt. Seas 10 ft.
.THU...SW wind 30 kt. Seas 8 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.SAT...S wind 30 kt. Seas 7 ft.

$$

PKZ772-211145-
Unalga Pass to Nikolski Bering Side from 15 to 85 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 30 kt. Seas 10 ft.
.TUE...SE wind 40 kt. Seas 12 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 11 ft.
.WED AND WED NIGHT...S wind 35 kt. Seas 16 ft.
.THU...SW wind 30 kt. Seas 14 ft.
.FRI...SW wind 25 kt. Seas 7 ft.
.SAT...S wind 30 kt. Seas 7 ft.

$$

PKZ771-211145-
Unalaska Bay-
315 PM AKDT Mon Apr 20 2026

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 3 ft. Rain.
.TUE...SE wind 25 kt. Seas 4 ft. Rain.
.TUE NIGHT...S wind 25 kt. Seas 4 ft. Rain showers.
.WED...S wind 30 kt. Seas 4 ft.
.WED NIGHT...S wind 25 kt. Seas 4 ft.
.THU THROUGH FRI...SW wind 15 kt. Seas 2 ft.
.SAT...S wind 20 kt. Seas 3 ft.

$$

PKZ773-211145-
Unalga Pass to Nikolski Pacific Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY...

.TONIGHT...SE wind 20 kt increasing to 30 kt after midnight.
Seas 8 ft. Rain.
.TUE...SE wind 40 kt. Seas 16 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 14 ft.
.WED...S wind 40 kt. Seas 20 ft.
.WED NIGHT...SW wind 35 kt. Seas 21 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.FRI...SW wind 20 kt. Seas 11 ft.
.SAT...S wind 30 kt. Seas 11 ft.

$$

PKZ774-211145-
Unalga Pass to Nikolski Pacific Side from 15 to 85 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt increasing to 35 kt after midnight.
Seas 11 ft. Rain.
.TUE...SE wind 40 kt. Seas 18 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 17 ft.
.WED AND WED NIGHT...SW wind 35 kt. Seas 23 ft.
.THU...SW wind 25 kt. Seas 19 ft.
.FRI...SW wind 20 kt. Seas 12 ft.
.SAT...S wind 30 kt. Seas 12 ft.

$$

PKZ775-211145-
Nikolski to Seguam Bering Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt becoming E 35 kt after midnight.
Seas 9 ft. Rain.
.TUE...SE wind 40 kt becoming S 30 kt in the afternoon.
Seas 11 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 14 ft. Rain showers.
.WED...S wind 35 kt. Seas 19 ft.
.WED NIGHT...SW wind 30 kt. Seas 20 ft.
.THU...W wind 25 kt. Seas 11 ft.
.FRI...SW wind 25 kt. Seas 10 ft.
.SAT...S wind 30 kt. Seas 9 ft.

$$

PKZ776-211145-
Nikolski to Seguam Bering Side from 15 to 85 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...E wind 30 kt. Seas 10 ft. Rain.
.TUE...SE wind 40 kt. Seas 12 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 13 ft. Rain showers.
.WED...S wind 35 kt. Seas 17 ft.
.WED NIGHT...SW wind 30 kt. Seas 19 ft.
.THU...W wind 30 kt. Seas 11 ft.
.FRI...SW wind 25 kt. Seas 10 ft.
.SAT...S wind 30 kt. Seas 9 ft.

$$

PKZ777-211145-
Nikolski to Seguam Pacfic Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt becoming E 35 kt after midnight.
Seas 11 ft. Rain.
.TUE...SE wind 40 kt becoming S 30 kt in the afternoon.
Seas 15 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 17 ft. Rain showers.
.WED AND WED NIGHT...SW wind 35 kt. Seas 25 ft.
.THU...W wind 25 kt. Seas 16 ft.
.FRI...S wind 25 kt. Seas 11 ft.
.SAT...S wind 35 kt. Seas 9 ft.

$$

PKZ778-211145-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt increasing to 40 kt after midnight.
Seas 13 ft. Rain.
.TUE...SE wind 40 kt becoming S 30 kt in the afternoon.
Seas 16 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 18 ft. Rain showers.
.WED...S wind 40 kt. Seas 25 ft.
.WED NIGHT...SW wind 35 kt. Seas 26 ft.
.THU...W wind 25 kt. Seas 17 ft.
.FRI THROUGH SAT...S wind 30 kt. Seas 11 ft.

$$

PKZ780-211145-
Seguam to Adak Bering Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 7 ft. Rain.
.TUE...E wind 30 kt. Seas 7 ft. Rain.
.TUE NIGHT...S wind 35 kt. Seas 8 ft. Rain showers.
.WED...SW wind 35 kt. Seas 8 ft.
.WED NIGHT...W wind 30 kt. Seas 9 ft.
.THU...W wind 25 kt. Seas 10 ft.
.FRI...N wind 30 kt. Seas 6 ft.
.SAT...SW wind 35 kt. Seas 6 ft.

$$

PKZ781-211145-
Seguam to Adak Bering Side from 15 to 85 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY...

.TONIGHT...SE wind 30 kt. Seas 10 ft. Rain.
.TUE...E wind 35 kt. Seas 10 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 11 ft. Rain showers.
.WED AND WED NIGHT...W wind 30 kt. Seas 11 ft.
.THU...W wind 25 kt. Seas 11 ft.
.FRI...W wind 30 kt. Seas 6 ft.
.SAT...SW wind 35 kt. Seas 7 ft.

$$

PKZ782-211145-
Seguam to Adak Pacific Side out to 15 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...E wind 35 kt. Seas 15 ft. Rain.
.TUE...SE wind 30 kt. Seas 12 ft. Rain showers.
.TUE NIGHT...SW wind 35 kt. Seas 16 ft. Rain showers.
.WED...SW wind 35 kt. Seas 23 ft.
.WED NIGHT...W wind 30 kt. Seas 21 ft.
.THU...W wind 25 kt. Seas 12 ft.
.FRI...SW wind 30 kt. Seas 7 ft.
.SAT...SW wind 35 kt. Seas 8 ft.

$$

PKZ783-211145-
Seguam to Adak Pacific Side from 15 to 75 NM-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 35 kt. Seas 16 ft. Rain.
.TUE...S wind 30 kt. Seas 14 ft. Rain showers.
.TUE NIGHT...SW wind 30 kt increasing to 40 kt after midnight.
Seas 19 ft. Rain showers.
.WED...SW wind 40 kt. Seas 25 ft.
.WED NIGHT...W wind 30 kt. Seas 24 ft.
.THU...W wind 25 kt. Seas 13 ft.
.FRI...SW wind 30 kt. Seas 9 ft.
.SAT...SW wind 35 kt. Seas 9 ft.

$$

PKZ784-211145-
Adak to Kiska Bering Side-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 13 ft. Rain.
.TUE...NE wind 20 kt becoming N 30 kt in the afternoon.
Seas 12 ft. Rain.
.TUE NIGHT...NW wind 35 kt. Seas 16 ft. Rain showers.
.WED...NW wind 35 kt. Seas 16 ft.
.WED NIGHT...NW wind 30 kt. Seas 16 ft.
.THU...NW wind 25 kt. Seas 13 ft.
.FRI...NE wind 25 kt. Seas 7 ft.
.SAT...NW wind 35 kt. Seas 8 ft.

$$

PKZ785-211145-
Adak to Kiska Pacific Side-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...SE wind 30 kt. Seas 17 ft.
.TUE...NW wind 15 kt increasing to 25 kt in the afternoon.
Seas 11 ft. Rain showers.
.TUE NIGHT...W wind 30 kt. Seas 16 ft. Rain showers.
.WED...NW wind 35 kt. Seas 18 ft.
.WED NIGHT...NW wind 25 kt. Seas 14 ft.
.THU...W wind 20 kt. Seas 11 ft.
.FRI...E wind 30 kt. Seas 8 ft.
.SAT...W wind 35 kt. Seas 8 ft.

$$

PKZ786-211145-
Kiska to Attu Bering Side-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...NE wind 20 kt becoming N 30 kt after midnight.
From Shemya W, N wind 40 kt. Seas 20 ft. Rain showers.
.TUE...NE wind 40 kt. Seas 20 ft. Rain and snow.
.TUE NIGHT...N wind 45 kt. Seas 25 ft. Snow and rain.
.WED...N wind 40 kt. Seas 25 ft.
.WED NIGHT...N wind 30 kt. Seas 20 ft.
.THU...N wind 20 kt. Seas 13 ft.
.FRI...NE wind 20 kt. Seas 7 ft.
.SAT...NW wind 30 kt. Seas 6 ft.

$$

PKZ787-211145-
Kiska to Attu Pacific Side-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...N wind 20 kt except N 40 kt from Shemya W.
Seas 15 ft. Rain.
.TUE...N wind 40 kt. Seas 16 ft. Rain.
.TUE NIGHT...N wind 40 kt. Seas 21 ft.
.WED...N wind 35 kt. Seas 21 ft.
.WED NIGHT...N wind 25 kt. Seas 17 ft.
.THU...N wind 15 kt. Seas 12 ft.
.FRI...NE wind 25 kt. Seas 8 ft.
.SAT...NW wind 30 kt. Seas 6 ft.

$$

PKZ766-211145-
Pribilof Islands Nearshore Waters-
315 PM AKDT Mon Apr 20 2026

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

.TONIGHT...S wind 20 kt. Seas 10 ft.
.TUE...E wind 40 kt. Seas 12 ft. Rain.
.TUE NIGHT...E wind 35 kt. Seas 12 ft. Rain showers.
.WED...SE wind 30 kt. Seas 12 ft.
.WED NIGHT...SE wind 30 kt. Seas 17 ft.
.THU...SW wind 30 kt. Seas 16 ft.
.FRI...S wind 20 kt. Seas 5 ft.
.SAT...SE wind 30 kt. Seas 5 ft.

$$

PKZ760-211145-
Bristol Bay greater than 15 NM-
315 PM AKDT Mon Apr 20 2026

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas in ice free waters 5 ft. Rain.
.TUE...SE wind 10 kt increasing to 20 kt in the afternoon.
Seas in ice free waters 3 ft.
.TUE NIGHT...SE wind 30 kt. Seas in ice free waters 3 ft.
.WED AND WED NIGHT...SE wind 25 kt. Seas in ice free waters 3 ft.
.THU...SE wind 25 kt. Seas in ice free waters 4 ft.
.FRI...SE wind 15 kt. Seas in ice free waters 3 ft.
.SAT...E wind 20 kt. Seas in ice free waters 2 ft.

$$

PKZ761-211145-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...BRISK WIND ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...SW wind 25 kt becoming S 15 kt after midnight. Rain.
.TUE...SE wind 10 kt increasing to 20 kt in the afternoon.
.TUE NIGHT...SE wind 30 kt.
.WED...SE wind 30 kt.
.WED NIGHT...SE wind 20 kt.
.THU...SE wind 20 kt.
.FRI THROUGH SAT...SE wind 15 kt.

$$

PKZ762-211145-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas in ice free waters 3 ft. Rain
and snow.
.TUE...SE wind 10 kt becoming E 20 kt in the afternoon.
Seas in ice free waters 2 ft.
.TUE NIGHT...SE wind 30 kt. Seas in ice free waters 3 ft. Rain.
.WED AND WED NIGHT...SE wind 30 kt. Seas in ice free waters 3 ft.
.THU...SE wind 30 kt. Seas in ice free waters 3 ft.
.FRI...SE wind 15 kt. Seas in ice free waters 2 ft.
.SAT...E wind 20 kt. Seas in ice free waters 2 ft.

$$

PKZ763-211145-
Kuskokwim Delta and Etolin Strait out to 15 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...W wind 20 kt. Seas in ice free waters 2 ft. Rain.
.TUE...NE wind 25 kt. Seas in ice free waters 2 ft. Rain. 
.TUE NIGHT...E wind 35 kt. Seas in ice free waters 3 ft. Rain
and snow.
.WED...SE wind 30 kt. Seas in ice free waters 2 ft.
.WED NIGHT...SE wind 35 kt. Seas in ice free waters 3 ft.
.THU...SE wind 40 kt. Seas in ice free waters 3 ft.
.FRI...S wind 20 kt. Seas in ice free waters 2 ft.
.SAT...SE wind 25 kt. Seas in ice free waters 2 ft.

$$

PKZ764-211145-
Kuskokwim Delta from 15 to 80 NM-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...W wind 25 kt becoming N after midnight. Seas in ice
free waters 8 ft. Rain.
.TUE...E wind 30 kt. Seas in ice free waters 6 ft. Rain. 
.TUE NIGHT...E wind 35 kt. Seas in ice free waters 10 ft. Rain.
.WED AND WED NIGHT...SE wind 30 kt. Seas in ice free waters 10 ft.
.THU...S wind 30 kt. Seas in ice free waters 11 ft.
.FRI...S wind 15 kt. Seas in ice free waters 4 ft.
.SAT...SE wind 25 kt. Seas in ice free waters 6 ft.

$$

PKZ765-211145-
North and West of Nunivak Island-
315 PM AKDT Mon Apr 20 2026

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...N wind 20 kt.
.TUE...NE wind 30 kt.
.TUE NIGHT...NE wind 40 kt. Snow and rain.
.WED...SE wind 40 kt.
.WED NIGHT...SE wind 30 kt.
.THU...SE wind 30 kt.
.FRI...S wind 20 kt.
.SAT...SE wind 20 kt.

$$

PKZ767-211145-
Saint Matthew Island Waters-
315 PM AKDT Mon Apr 20 2026

...STORM WARNING TUESDAY NIGHT...

.TONIGHT...NE wind 25 kt E of Saint Matthew Island... NE 35 kt W
of Saint Matthew Island. Seas in ice free waters 9 ft. Freezing 
spray.
.TUE...NE wind 40 kt. Seas in ice free waters 13 ft. Freezing
spray.
.TUE NIGHT...NE wind 50 kt. Seas in ice free waters 19 ft. Snow.
Freezing spray.
.WED...NE wind 50 kt. Seas in ice free waters 18 ft.
.WED NIGHT...NE wind 40 kt. Seas in ice free waters 13 ft.
.THU...NE wind 30 kt. Seas in ice free waters 11 ft.
.FRI...S wind 20 kt. Seas in ice free waters 6 ft.
.SAT...E wind 25 kt. Seas in ice free waters 4 ft.

$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Apr 20, 5:49 AM AKDT, 9 hours 26 minutes earlier.

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
549 AM AKDT Mon Apr 20 2026

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Today through Wednesday night)...

A series of shortwaves will propagate through Southcentral Alaska
today into tonight in the southwesterly flow aloft. The first one
is in the northeastern Copper River Basin and heading into the
Yukon. This wave helped bring in the advisory-level snowfall to
the southern slopes of the Alaska Range. With it moving out of the
area that advisory has been canceled.

The second wave can be seen on satellite imagery early this
morning over northern Cook Inlet. This is a weak wave and is
mainly just bringing some mid to high level clouds with snow
showers relegated to the Talkeetna and Chugach Mountains.

The third shortwave is entering southern Cook Inlet early this
morning and is a much stronger wave. This is the shortwave that
is expected to bring showers to the Kenai Peninsula by late
morning and to Anchorage and the Mat-Su this afternoon. With the
southerly surface winds persisting (though not as strong as
yesterday), the precipitation type should mainly be rain. However,
there is a chance for some snow to mix in this morning as well as
in heavier showers. There is also the potential for small hail in
these showers due to the low freezing level. The Anchorage ROAB
showed a freezing level of 1100 ft at 3 AM, but this is expected
to rise as the day progresses.

After this third shortwave moves through, the flow aloft will
shift more westerly for Tuesday which should bring a few breaks
in the clouds and less shower activity. However this will be short
lived as an atmospheric river will bring a return to wet and
windy conditions.

&&

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

Rain and snow showers will persist today across the southwestern
mainland as a series of upper-level disturbances moves in from the
Bering Sea. The expectation is for continued showery
precipitation across the area with westerly upslope enhancement
along the Western Alaska Range and Aleutian Range. This activity
will taper off through Tuesday morning as an upper-level shortwave
ridge begins building into the southwest mainland by then.
Despite the ridge moving in, expect another overcast day across
Southwest for Tuesday.

Attention then quickly turns to the next significant Bering Sea
system which is currently gathering strength just southeast of
Shemya this morning. This system will deepen further tonight and
Tuesday as it wraps in more cold air from Russia and remains
nearly stationary between Adak and Amchitka through early
Wednesday morning. As the system spins between Amchitka and Adak,
multiple frontal systems will be sent northward and eastward. The
first of which will be today through tonight with Adak and the
Pribilofs seeing light rain with the gustiest winds remaining
confined to Adak.

The second and more widespread frontal push of moisture will
arrive with moderate to heavy rain Tuesday morning to Adak and
Atka and will arrive to the Pribilofs and Nikolski/Unalaska/Akutan
by late Tuesday morning to early Tuesday afternoon. By Tuesday
afternoon, the storm strengthens to storm-force on the northern
periphery of the system just west of the Pribilofs. Heavy rain
moves to False Pass, King Cove, Cold Bay, and Sand Point by
Tuesday evening. Moisture also makes its presence known across
mainland Southwest Alaska also by Tuesday evening. The Kuskokwim
Delta and Nunivak Island could see a period of snow at the onset
of precipitation Tuesday evening before turning to rain overnight
Tuesday as warm air and southerly flow advance northward. Heavy
rain will not stay over the Alaska Peninsula too long as the
moisture corridor shifts east to Kodiak Island by Wednesday
morning with the Interior Kuskokwim Delta, Kuskokwim Valley, and
Bristol Bay continuing to see light to moderate rain at times
Wednesday morning through Wednesday evening.

The storm slowly pulls northeastward to the central Bering near
the Pribilof Islands by Thursday morning. Additional cold air gets
pulled southward into the western Bering from Russia on the
backside of the storm. Rain/snow showers are a good bet for Shemya
from Wednesday afternoon into Thursday morning as the unstable
airmass moves overhead. The Pribilofs will contend with an
additional round of rain or rain/snow mix Wednesday evening into
Thursday morning as showery conditions also persist across
mainland Southwest for that time period as well.

&&

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

Unsettled conditions will likely persist across much of Alaska
through the upcoming week. A low over the southern Bering Sea will
move toward Nunivak Island by Thursday morning. South to
southwesterly flow with gusts up to 40 mph will move across
Kuskokwim Bay/Delta area. Concerns for coastal impacts is low due
to shorefast ice and some added protection from the expansive ice
flow over the eastern Bering Sea.

The accompanied front from the Bering low will move into the
western Gulf of Alaska, drawing with it a relatively deeper surge
of moisture. Coastal areas in the northern Gulf and Kodiak Island
and higher elevations of the Alaska Range will likely see the most
precipitation. Away from the coast, expect several days of mixed
precipitation to continue, including rain at lower elevations and
snow at higher elevations. Southeasterly flow will allow some
downsloping to the west of the Chugach and Kenai Mountains.

Model agreement decreases significantly late in the week, though
some semblance of a low continues to place a low in the southern
Bering Sea with southerly flow persisting into Southcentral. It is
probable that our overall pattern will not deviate much from what
we are already seeing, however, the details should become clear
with the timing of these key wind and precipitation features as we
approach the mid to late week timeframe.

&&

.AVIATION...

PANC...Gusty southerly winds will gradually diminish through the
day today, with peak gusts decreasing from 30 to 20 kts through
around 08Z. VFR conditions will likely prevail today, with only a
slight chance of briefly dipping into MVFR conditions with
passing showers this afternoon. Southerly winds will continue to
diminish, remaining light through tomorrow morning.

&&

Storm Warnings in Alaska, 2026Every storm warning in 2026

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