Storm Warning 82, NWS Anchorage, AK

353 
FZAK52 PAFC 212243
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
243 PM AKDT Tue Apr 21 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.

PKZ199-221145-
243 PM AKDT Tue Apr 21 2026
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 983 mb low 150 nm W of Amchitka moves to 93 nm NW of Adak at 
967 mb by Wed morning. The low continues to 185 nm NW of Saint 
Paul at 984 mb by Thu afternoon. 

$$

PKZ750-221145-
Sitkinak to Castle Cape out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 7 ft.
.WED...S wind 30 kt. Seas 10 ft. Rain showers.
.WED NIGHT...S wind 20 kt. Seas 9 ft.
.THU...S wind 20 kt. Seas 7 ft.
.THU NIGHT...S wind 15 kt. Seas 6 ft.
.FRI THROUGH SAT...S wind 15 kt. Seas 5 ft.
.SUN...S wind 25 kt. Seas 9 ft.

$$

PKZ751-221145-
Sitkinak to Castle Cape from 15 to 100 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 35 kt. Seas 11 ft. Rain.
.WED...S wind 35 kt. Seas 15 ft. Rain.
.WED NIGHT...S wind 25 kt. Seas 15 ft.
.THU...S wind 20 kt. Seas 13 ft.
.THU NIGHT...S wind 15 kt. Seas 12 ft.
.FRI...S wind 15 kt. Seas 12 ft.
.SAT...S wind 25 kt. Seas 8 ft.
.SUN...S wind 25 kt. Seas 12 ft.

$$

PKZ752-221145-
Castle Cape to Cape Tolstoi out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 8 ft. Rain showers.
.WED...S wind 25 kt. Seas 9 ft.
.WED NIGHT...S wind 25 kt. Seas 8 ft.
.THU...S wind 25 kt. Seas 7 ft.
.THU NIGHT...S wind 15 kt. Seas 6 ft.
.FRI...S wind 15 kt. Seas 5 ft.
.SAT THROUGH SUN...S wind 30 kt. Seas 7 ft.

$$

PKZ753-221145-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 15 ft. Rain showers.
.WED...S wind 30 kt diminishing to 20 kt in the afternoon. Seas
15 ft.
.WED NIGHT...S wind 25 kt. Seas 13 ft.
.THU...S wind 25 kt. Seas 15 ft.
.THU NIGHT...S wind 20 kt. Seas 14 ft.
.FRI...S wind 15 kt. Seas 11 ft.
.SAT...S wind 25 kt. Seas 8 ft.
.SUN...S wind 25 kt. Seas 17 ft.

$$

PKZ754-221145-
Cape Tolstoi to Cape Sarichef out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt becoming S 25 kt after midnight. Seas
13 ft. Rain.
.WED...S wind 30 kt. Seas 11 ft.
.WED NIGHT...S wind 30 kt. Seas 14 ft. Rain showers.
.THU...S wind 30 kt. Seas 13 ft.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...S wind 20 kt. Seas 7 ft.
.SAT...S wind 35 kt. Seas 10 ft.
.SUN...S wind 40 kt. Seas 12 ft.

$$

PKZ755-221145-
South of the AK Peninsula Cape Tolstoi to Unalga Pass from 15 to
100 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 40 kt diminishing to 30 kt after midnight.
Seas 16 ft. Rain.
.WED...S wind 35 kt. Seas 15 ft.
.WED NIGHT...S wind 30 kt. Seas 18 ft.
.THU...S wind 25 kt. Seas 18 ft.
.THU NIGHT...SW wind 20 kt. Seas 13 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT...S wind 30 kt. Seas 13 ft.
.SUN...SW wind 35 kt. Seas 21 ft.

$$

PKZ756-221145-
Port Heiden to Nelson Lagoon out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...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...S wind 25 kt. Seas in ice free waters 2 ft.
.THU...S wind 25 kt. Seas in ice free waters 2 ft.
.THU NIGHT...S wind 15 kt. Seas in ice free waters 2 ft.
.FRI...Variable wind 10 kt. Seas in ice free waters 2 ft.
.SAT THROUGH SUN...SE wind 20 kt. Seas in ice free waters 4 ft.

$$

PKZ757-221145-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas in ice free waters 7 ft. Rain.
.WED...SE wind 25 kt. Seas in ice free waters 5 ft.
.WED NIGHT...SE wind 30 kt. Seas in ice free waters 7 ft.
.THU...S wind 30 kt. Seas in ice free waters 8 ft.
.THU NIGHT...S wind 15 kt. Seas in ice free waters 6 ft.
.FRI...S wind 15 kt. Seas in ice free waters 5 ft.
.SAT...SE wind 20 kt. Seas in ice free waters 4 ft.
.SUN...SE wind 25 kt. Seas in ice free waters 13 ft.

$$

PKZ758-221145-
Nelson Lagoon to Cape Sarichef out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt becoming S 25 kt after midnight.
Seas 4 ft. Rain.
.WED...S wind 30 kt. Seas 4 ft.
.WED NIGHT...S wind 30 kt. Seas 5 ft.
.THU...S wind 30 kt. Seas 5 ft.
.THU NIGHT...S wind 15 kt. Seas 4 ft.
.FRI...S wind 15 kt. Seas 3 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SUN...S wind 30 kt. Seas 11 ft.

$$

PKZ759-221145-
Nelson Lagoon to Unalga Pass 15 to 70 nm-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 40 kt becoming S 30 kt after midnight.
Seas 11 ft. Rain.
.WED...S wind 30 kt increasing to 40 kt in the afternoon.
Seas 10 ft.
.WED NIGHT...S wind 40 kt. Seas 13 ft.
.THU...S wind 30 kt. Seas 12 ft.
.THU NIGHT...SW wind 20 kt. Seas 8 ft.
.FRI...S wind 15 kt. Seas 5 ft.
.SAT...SE wind 30 kt. Seas 11 ft.
.SUN...S wind 30 kt. Seas 20 ft.

$$

PKZ768-221145-
Unimak Pass-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 15 ft.
.WED...S wind 35 kt. Seas 14 ft.
.WED NIGHT...S wind 35 kt. Seas 16 ft. Rain showers.
.THU...SW wind 30 kt. Seas 14 ft.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 7 ft.
.SAT THROUGH SUN...S wind 30 kt. Seas 13 ft.

$$

PKZ770-221145-
Unalga Pass to Nikolski Bering Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 6 ft.
.WED...S wind 40 kt. Seas 9 ft. Rain showers.
.WED NIGHT...S wind 40 kt. Seas 10 ft. Rain showers.
.THU...SW wind 30 kt. Seas 8 ft.
.THU NIGHT...SW wind 20 kt. Seas 6 ft.
.FRI...SW wind 20 kt. Seas 5 ft.
.SAT...S wind 35 kt. Seas 7 ft.
.SUN...SW wind 40 kt. Seas 14 ft.

$$

PKZ772-221145-
Unalga Pass to Nikolski Bering Side from 15 to 85 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 11 ft.
.WED...S wind 40 kt. Seas 15 ft. Rain showers.
.WED NIGHT...S wind 40 kt. Seas 17 ft. Rain showers.
.THU...SW wind 30 kt. Seas 13 ft.
.THU NIGHT...SW wind 20 kt. Seas 8 ft.
.FRI...SW wind 20 kt. Seas 6 ft.
.SAT...S wind 35 kt. Seas 12 ft.
.SUN...SW wind 35 kt. Seas 24 ft.

$$

PKZ771-221145-
Unalaska Bay-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 3 ft.
.WED...S wind 30 kt. Seas 3 ft. Rain showers.
.WED NIGHT...S wind 30 kt. Seas 4 ft. Rain showers.
.THU...SW wind 20 kt. Seas 3 ft.
.THU NIGHT...SW wind 10 kt. Seas 2 ft.
.FRI...SW wind 10 kt. Seas 2 ft.
.SAT...S wind 25 kt. Seas 4 ft.
.SUN...SW wind 25 kt. Seas 4 ft.

$$

PKZ773-221145-
Unalga Pass to Nikolski Pacific Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 15 ft.
.WED...S wind 40 kt. Seas 18 ft. Rain showers.
.WED NIGHT...S wind 40 kt. Seas 20 ft. Rain showers.
.THU...SW wind 30 kt. Seas 16 ft.
.THU NIGHT...SW wind 20 kt. Seas 11 ft.
.FRI...SW wind 20 kt. Seas 8 ft.
.SAT...S wind 40 kt. Seas 13 ft.
.SUN...SW wind 40 kt. Seas 20 ft.

$$

PKZ774-221145-
Unalga Pass to Nikolski Pacific Side from 15 to 85 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 16 ft.
.WED...S wind 40 kt. Seas 20 ft.
.WED NIGHT...S wind 40 kt becoming SW 30 kt after midnight.
Seas 23 ft. Rain showers.
.THU...SW wind 30 kt. Seas 19 ft.
.THU NIGHT...SW wind 20 kt. Seas 13 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT...S wind 35 kt. Seas 15 ft.
.SUN...SW wind 40 kt. Seas 27 ft.

$$

PKZ775-221145-
Nikolski to Seguam Bering Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 15 ft. Rain showers.
.WED...S wind 35 kt. Seas 19 ft. Rain showers.
.WED NIGHT...SW wind 40 kt diminishing to 30 kt after midnight.
Seas 19 ft. Rain showers.
.THU...SW wind 25 kt. Seas 12 ft.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...W wind 20 kt. Seas 7 ft.
.SAT...S wind 40 kt. Seas 16 ft.
.SUN...SW wind 40 kt. Seas 25 ft.

$$

PKZ776-221145-
Nikolski to Seguam Bering Side from 15 to 85 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 15 ft. Rain showers.
.WED...S wind 35 kt. Seas 19 ft. Rain showers.
.WED NIGHT...SW wind 35 kt. Seas 19 ft. Rain showers.
.THU...SW wind 25 kt. Seas 12 ft.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...W wind 20 kt. Seas 8 ft.
.SAT...SE wind 35 kt. Seas 16 ft.
.SUN...W wind 40 kt. Seas 25 ft.

$$

PKZ777-221145-
Nikolski to Seguam Pacfic Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 18 ft. Rain showers.
.WED...S wind 35 kt. Seas 24 ft. Rain showers.
.WED NIGHT...SW wind 35 kt. Seas 24 ft. Rain showers.
.THU...SW wind 25 kt. Seas 16 ft.
.THU NIGHT...SW wind 20 kt. Seas 12 ft.
.FRI...W wind 20 kt. Seas 8 ft.
.SAT...S wind 40 kt. Seas 19 ft.
.SUN...SW wind 40 kt. Seas 30 ft.

$$

PKZ778-221145-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 40 kt. Seas 19 ft. Rain showers.
.WED...S wind 40 kt. Seas 25 ft. Rain showers.
.WED NIGHT...SW wind 40 kt diminishing to 30 kt after midnight.
Seas 25 ft. Rain showers.
.THU...SW wind 25 kt. Seas 17 ft.
.THU NIGHT...SW wind 20 kt. Seas 12 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.SAT...S wind 40 kt. Seas 20 ft.
.SUN...SW wind 40 kt. Seas 32 ft.

$$

PKZ780-221145-
Seguam to Adak Bering Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 8 ft. Rain showers.
.WED...SW wind 35 kt. Seas 9 ft. Rain showers.
.WED NIGHT...W wind 35 kt. Seas 9 ft.
.THU...W wind 30 kt. Seas 9 ft.
.THU NIGHT...W wind 20 kt. Seas 8 ft.
.FRI...W wind 20 kt. Seas 7 ft.
.SAT...SE wind 40 kt. Seas 16 ft.
.SUN...W wind 45 kt. Seas 17 ft.

$$

PKZ781-221145-
Seguam to Adak Bering Side from 15 to 85 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt. Seas 12 ft. Rain showers.
.WED...S wind 30 kt. Seas 11 ft. Rain showers.
.WED NIGHT...W wind 30 kt. Seas 10 ft.
.THU...W wind 30 kt. Seas 10 ft.
.THU NIGHT...W wind 20 kt. Seas 9 ft.
.FRI...W wind 20 kt. Seas 8 ft.
.SAT...E wind 35 kt. Seas 17 ft.
.SUN...NW wind 40 kt. Seas 20 ft.

$$

PKZ782-221145-
Seguam to Adak Pacific Side out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 35 kt. Seas 17 ft. Rain showers.
.WED...SW wind 35 kt. Seas 23 ft. Rain showers.
.WED NIGHT...W wind 35 kt. Seas 21 ft.
.THU...W wind 25 kt. Seas 12 ft.
.THU NIGHT...W wind 20 kt. Seas 10 ft.
.FRI...W wind 20 kt. Seas 7 ft.
.SAT...SE wind 40 kt. Seas 36 ft.
.SUN...W wind 40 kt. Seas 36 ft.

$$

PKZ783-221145-
Seguam to Adak Pacific Side from 15 to 75 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW wind 30 kt increasing to 40 kt after midnight.
Seas 20 ft. Rain showers.
.WED...SW wind 40 kt. Seas 25 ft. Rain showers.
.WED NIGHT...W wind 35 kt. Seas 23 ft.
.THU...W wind 30 kt. Seas 14 ft.
.THU NIGHT...SW wind 20 kt. Seas 11 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.SAT...S wind 40 kt. Seas 38 ft.
.SUN...W wind 45 kt. Seas 38 ft.

$$

PKZ784-221145-
Adak to Kiska Bering Side-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 15 ft. Rain showers.
.WED...NW wind 30 kt. Seas 14 ft.
.WED NIGHT...NW wind 30 kt. Seas 14 ft.
.THU...W wind 30 kt. Seas 13 ft.
.THU NIGHT...NW wind 20 kt. Seas 9 ft.
.FRI...W wind 20 kt. Seas 9 ft.
.SAT...NE wind 35 kt. Seas 19 ft.
.SUN...NW wind 40 kt. Seas 19 ft.

$$

PKZ785-221145-
Adak to Kiska Pacific Side-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING WEDNESDAY...

.TONIGHT...W wind 30 kt. Seas 11 ft building to 17 ft after
midnight. Rain showers.
.WED...NW wind 35 kt. Seas 18 ft.
.WED NIGHT...W wind 30 kt. Seas 15 ft.
.THU...W wind 25 kt. Seas 11 ft.
.THU NIGHT...NW wind 20 kt. Seas 7 ft.
.FRI...W wind 20 kt. Seas 9 ft.
.SAT...NE wind 35 kt. Seas 33 ft.
.SUN...NW wind 40 kt. Seas 33 ft.

$$

PKZ786-221145-
Kiska to Attu Bering Side-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...N wind 45 kt. Seas 25 ft. Snow showers and rain
showers.
.WED...N wind 40 kt. Seas 25 ft.
.WED NIGHT...NW wind 30 kt. Seas 20 ft.
.THU...NW wind 20 kt. Seas 14 ft.
.THU NIGHT...N wind 15 kt. Seas 10 ft.
.FRI...N wind 15 kt. Seas 9 ft.
.SAT...NE wind 25 kt. Seas 20 ft.
.SUN...NW wind 30 kt. Seas 20 ft.

$$

PKZ787-221145-
Kiska to Attu Pacific Side-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...N wind 40 kt. Seas 21 ft. Rain showers and snow
showers.
.WED...N wind 35 kt. Seas 20 ft.
.WED NIGHT...NW wind 30 kt diminishing to 20 kt after midnight.
Seas 17 ft.
.THU AND THU NIGHT...N wind 15 kt. Seas 11 ft.
.FRI...E wind 15 kt. Seas 10 ft.
.SAT...NE wind 30 kt. Seas 20 ft.
.SUN...NW wind 35 kt. Seas 20 ft.

$$

PKZ766-221145-
Pribilof Islands Nearshore Waters-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING WEDNESDAY...

.TONIGHT...SE wind 30 kt. Seas 12 ft.
.WED...SE wind 35 kt. Seas 14 ft. Rain showers.
.WED NIGHT...SE wind 30 kt. Seas 16 ft. Rain showers.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...SW wind 20 kt. Seas 9 ft.
.FRI...S wind 15 kt. Seas 6 ft.
.SAT...SE wind 30 kt. Seas 11 ft.
.SUN...NE wind 30 kt. Seas 23 ft.

$$

PKZ760-221145-
Bristol Bay greater than 15 NM-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas in ice free waters 4 ft. Rain.
.WED...SE wind 30 kt diminishing to 20 kt in the afternoon.
Seas in ice free waters 3 ft.
.WED NIGHT...SE wind 25 kt. Seas in ice free waters 4 ft.
.THU...SE wind 25 kt. Seas in ice free waters 4 ft.
.THU NIGHT...S wind 15 kt. Seas in ice free waters 4 ft.
.FRI...SE wind 10 kt. Seas in ice free waters 3 ft.
.SAT...SE wind 15 kt. Seas in ice free waters 2 ft.
.SUN...SE wind 25 kt. Seas in ice free waters 7 ft.

$$

PKZ761-221145-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...BRISK WIND ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE wind 30 kt.
.WED...SE wind 30 kt diminishing to 20 kt in the afternoon.  Rain.
.WED NIGHT...SE wind 20 kt.
.THU...SE wind 20 kt.
.THU NIGHT...SE wind 15 kt.
.FRI THROUGH SAT...SE wind 15 kt.
.SUN...SE wind 25 kt.

$$

PKZ762-221145-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas in ice free waters 3 ft. Rain.
.WED...SE wind 30 kt. Seas in ice free waters 3 ft. Rain.
.WED NIGHT...SE wind 25 kt. Seas in ice free waters 3 ft.
.THU...SE wind 25 kt. Seas in ice free waters 3 ft.
.THU NIGHT...SE wind 15 kt. Seas in ice free waters 3 ft.
.FRI...SE wind 15 kt. Seas in ice free waters 2 ft.
.SAT...SE wind 20 kt. Seas in ice free waters 2 ft.
.SUN...SE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ763-221145-
Kuskokwim Delta and Etolin Strait out to 15 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas in ice free waters 5 ft. Rain
and snow.
.WED...SE wind 30 kt diminishing to 20 kt in the afternoon.
Seas in ice free waters 4 ft.
.WED NIGHT...SE wind 30 kt. Seas in ice free waters 5 ft.
Rain showers and snow showers.
.THU...SE wind 30 kt. Seas in ice free waters 6 ft.
.THU NIGHT...S wind 25 kt. Seas in ice free waters 5 ft.
.FRI...SE wind 20 kt. Seas in ice free waters 3 ft.
.SAT...SE wind 25 kt. Seas in ice free waters 3 ft.
.SUN...E wind 30 kt. Seas in ice free waters 9 ft.

$$

PKZ764-221145-
Kuskokwim Delta from 15 to 80 NM-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas in ice free waters 9 ft. Rain.
.WED...SE wind 25 kt. Seas in ice free waters 8 ft.
.WED NIGHT...SE wind 30 kt. Seas in ice free waters 11 ft.
Rain showers and snow showers.
.THU...S wind 30 kt. Seas in ice free waters 11 ft.
.THU NIGHT...S wind 25 kt. Seas in ice free waters 9 ft.
.FRI...S wind 15 kt. Seas in ice free waters 6 ft.
.SAT...SE wind 25 kt. Seas in ice free waters 4 ft.
.SUN...SE wind 30 kt. Seas in ice free waters 15 ft.

$$

PKZ765-221145-
North and West of Nunivak Island-
243 PM AKDT Tue Apr 21 2026

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 35 kt. Snow and rain.
.WED...SE wind 30 kt diminishing to 20 kt in the afternoon.
.WED NIGHT...SE wind 30 kt. Rain showers and snow
showers.
.THU...SE wind 30 kt.
.THU NIGHT...S wind 25 kt.
.FRI THROUGH SAT...SE wind 20 kt.
.SUN...E wind 25 kt.

$$

PKZ767-221145-
Saint Matthew Island Waters-
243 PM AKDT Tue Apr 21 2026

...STORM WARNING TONIGHT...

.TONIGHT...NE wind 40 kt E of Saint Matthew Island... NE 50 kt
W of Saint Matthew Island. Seas in ice free waters 18 ft. Snow. 
Freezing spray.
.WED...E of Saint Matthew Island, E wind 35 kt diminishing to 25
kt in the afternoon. W of Saint Matthew Island, NE wind 45 kt.
Seas in ice free waters 17 ft. Snow showers. Freezing spray.
.WED NIGHT...E wind 25 kt E of Saint Matthew Island... NE 35 kt W
of Saint Matthew Island. Seas in ice free waters 12 ft. Snow showers.
Freezing spray.
.THU...NE wind 30 kt. Seas in ice free waters 11 ft.
.THU NIGHT...W wind 25 kt. Seas in ice free waters 9 ft.
.FRI...S wind 25 kt. Seas in ice free waters 8 ft.
.SAT...E wind 25 kt. Seas in ice free waters 5 ft.
.SUN...NE wind 30 kt. Seas in ice free waters 14 ft.

$$

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

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

Light, periodic, lingering showers may persist into this evening
across portions of southern Southcentral as a shortwave exits to
the east. Otherwise, overall drier conditions are expected
tonight and Tuesday.

The wetter pattern returns on Wednesday as a more robust low in
the Bering will push its front into the region. Widespread
precipitation is expected to begin as early as 4-6AM Wednesday
morning for Kodiak and some higher elevations of the Chugach and
Talkeetna Mountains. By mid-morning Wednesday, precipitation will
spread to encompass almost the entirety of the Mat-Su Valleys,
Kodiak Island, the north Gulf Coast and the Kenai Peninsula.
There is a fluctuating chance for precipitation in Anchorage, as
some models are hinting at downsloping while other track the
precipitation up Cook Inlet and over Anchorage. The eastern Alaska
Range and Wrangell mountains will see snow showers by Wednesday
morning, though the valleys of the Copper River Basin are likely
to remain drier.

Worry not! Precipitation is indeed expected to continue into
Thursday and Friday morning as the Atmospheric River continue to
pump moisture into Southcentral from the North Pacific. Rain or a
rain/snow mix is expected to be the primary precipitation type
Wednesday and Thursday for the lower elevations. With snow levels
raising to 1500-2000 ft - higher elevations will continue to see
all snow.

KM

&&

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

Rain and snow showers will persist tonight 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 as another low pressure system
approaches.

Attention then quickly turns to the next significant Bering Sea
system deepening tonight and Tuesday, remaining 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 west of the Pribilofs. Heavy rain moves
to False Pass, King Cove, Cold Bay, and Sand Point by Tuesday
evening. Nunivak Island and the Kuskokwim Delta coast will see a
period of snow at the onset of precipitation Tuesday evening
and with gusty winds, will promote localized blowing snow
conditions, reducing visibility to 1/2 mile or less at times into
Wednesday morning. 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 Thursday morning. By Wednesday afternoon,
the storm will have pulled in substantial warmer air from the
south, transitioning any remaining areas of snow to a rain/snow
mix or plain rain. Rainfall will likely linger over the Pribilof
islands into Thursday morning. For Thursday and beyond, an
unsettled showery pattern is expected over much of the Bering,
Aleutians, and Southwest Alaska.

-DAN/CL

&&

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

Precipitation continues across much of Alaska through the
weekend. A North Pacific low will enter the southern Bering near
Adak Sunday morning, passing the Pribilof Islands Sunday night and
pausing west of Nunivak Island on Monday. This system brings
widespread gales across southern and eastern Bering and Bristol
Bay before it weakens on Monday. The highest winds do not reach
the mainland, and concern for coastal impacts is low due to
shorefast ice and some added protection from the expansive ice
floe over the eastern Bering Sea.

The associated front from this system will expand into the
western Gulf of Alaska, drawing upon an extended moisture fetch.
Coastal areas in the northern Gulf, Kodiak Island and higher
elevations of the Alaska Range will likely see the most
precipitation. Away from the coast, expect several days of light
to moderate 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 on the track of this system has improved, keeping
the low west to slightly northwest of Nunivak Island, with
southerly flow bringing the main moisture plume into Southcentral
and Southeast Alaska. The minority opinion of the ECMWF places the
center of the system west of the Pribilofs, which would signal
higher wind and precipitation for those islands, but elsewhere
little would change. Shortwaves rotating around the center of the
system will bring slightly less intense precipitation to
Southwest Alaska through the first half of the week.

&&

.AVIATION...

PANC...Gusty southerly winds will gradually decrease tonight to
around 10 kts for much of Tuesday. VFR conditions will likely
prevail through the period, with brief dips into MVFR with showers
through this evening.

&&

Preliminary Local Storm Report
National Weather Service Anchorage AK
1102 PM AKDT Mon Apr 20 2026

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

0720 AM     Snow             Valdez                  61.11N 146.22W
04/20/2026  M9.6 Inch        Chugach            AK   Trained Spotter

            9.6 in of snow, 1.02 in of SWE.

&&

CW