Storm Warning 87, NWS Anchorage, AK

467 
FZAK52 PAFC 092207
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
207 PM AKDT Tue Apr 9 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.

PKZ199-101115-
207 PM AKDT Tue Apr 9 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A Kamchatka low will move to the western Bering at 965 mb by Wed 
afternoon, and cross to 150 nm south of Gambell at 979mb by Thu 
afternoon, draping a front across the western Aleutians by the end of
the period.

$$

PKZ750-101115-
Sitkinak to Castle Cape out to 15 NM-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 7 ft. Freezing spray.
.WED...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 6 ft.
Freezing spray.
.WED NIGHT...SW wind 20 kt. Seas 4 ft. Snow and rain.
.THU...SW wind 20 kt. Seas 6 ft.
.THU NIGHT...W wind 25 kt. Seas 6 ft.
.FRI THROUGH SAT...NW wind 30 kt. Seas 7 ft.
.SUN...NW wind 25 kt. Seas 5 ft.

$$

PKZ751-101115-
Sitkinak to Castle Cape from 15 to 100 NM-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. Seas
13 ft. Freezing spray.
.WED...NW wind 25 kt diminishing to 15 kt in the afternoon. Seas
9 ft. Freezing spray.
.WED NIGHT...SW wind 20 kt. Seas 6 ft. Snow and rain.
.THU AND THU NIGHT...W wind 30 kt. Seas 11 ft.
.FRI THROUGH SAT...NW wind 35 kt. Seas 12 ft.
.SUN...NW wind 25 kt. Seas 8 ft.

$$

PKZ752-101115-
Castle Cape to Cape Tolstoi out to 15 NM-
207 PM AKDT Tue Apr 9 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 30 kt diminishing to 20 kt after midnight. Seas
4 ft. Freezing spray.
.WED...Variable wind 10 kt becoming S 15 kt in the afternoon. Seas
2 ft.
.WED NIGHT...S wind 20 kt. Seas 3 ft. Rain and snow.
.THU...SW wind 20 kt. Seas 3 ft.
.THU NIGHT...W wind 25 kt. Seas 5 ft.
.FRI...W wind 25 kt. Seas 5 ft.
.SAT...NW wind 20 kt. Seas 4 ft.
.SUN...NW wind 15 kt. Seas 2 ft.

$$

PKZ753-101115-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 40 kt diminishing to 30 kt after midnight. Seas
12 ft. Freezing spray.
.WED...NW wind 15 kt. Seas 6 ft.
.WED NIGHT...SW wind 25 kt. Seas 7 ft. Snow.
.THU AND THU NIGHT...W wind 30 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 13 ft.
.SAT...NW wind 25 kt. Seas 10 ft.
.SUN...NW wind 20 kt. Seas 6 ft.

$$

PKZ754-101115-
Cape Tolstoi to Cape Sarichef out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 25 kt becoming W 15 kt after midnight. Seas 3
ft.
.WED...SW wind 20 kt. Seas 4 ft.
.WED NIGHT...SW wind 30 kt diminishing to 20 kt after midnight.
Seas 8 ft. Rain and snow.
.THU...W wind 25 kt. Seas 9 ft.
.THU NIGHT...W wind 30 kt. Seas 10 ft.
.FRI...NW wind 25 kt. Seas 9 ft.
.SAT THROUGH SUN...NW wind 15 kt. Seas 4 ft.

$$

PKZ755-101115-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 10 ft.
.WED...W wind 25 kt. Seas 7 ft.
.WED NIGHT...SW wind 35 kt. Seas 12 ft. Rain and snow.
.THU AND THU NIGHT...W wind 30 kt. Seas 15 ft.
.FRI...W wind 30 kt. Seas 13 ft.
.SAT...NW wind 20 kt. Seas 9 ft.
.SUN...NW wind 15 kt. Seas 5 ft.

$$

PKZ756-101115-
Port Heiden to Nelson Lagoon out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. Seas
9 ft. Freezing spray.
.WED...Variable wind 10 kt becoming S 20 kt in the afternoon. Seas
4 ft.
.WED NIGHT...S wind 25 kt. Seas 7 ft. Rain and snow.
.THU...SW wind 30 kt. Seas 10 ft.
.THU NIGHT...SW wind 35 kt. Seas 13 ft.
.FRI...W wind 30 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SUN...W wind 15 kt. Seas 4 ft.

$$

PKZ757-101115-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 30 kt becoming W 15 kt after midnight. Seas 10
ft subsiding to 6 ft after midnight. Freezing spray.
.WED...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 5 ft.
Snow.
.WED NIGHT...S wind 30 kt. Seas 12 ft. Rain and snow.
.THU...SW wind 30 kt. Seas 14 ft.
.THU NIGHT...W wind 35 kt. Seas 18 ft.
.FRI...W wind 30 kt. Seas 16 ft.
.SAT...W wind 25 kt. Seas 10 ft.
.SUN...W wind 15 kt. Seas 5 ft.

$$

PKZ758-101115-
Nelson Lagoon to Cape Sarichef out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 20 kt. Seas 7 ft. Freezing spray.
.WED...SW wind 25 kt. Seas 7 ft. Rain and snow.
.WED NIGHT...SW wind 30 kt. Seas 13 ft. Rain and snow.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...W wind 35 kt. Seas 18 ft.
.FRI...NW wind 30 kt. Seas 16 ft.
.SAT...W wind 20 kt. Seas 9 ft.
.SUN...W wind 15 kt. Seas 5 ft.

$$

PKZ759-101115-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 20 kt. Seas 7 ft. Freezing spray.
.WED...SW wind 25 kt increasing to 35 kt in the afternoon. Seas
10 ft. Snow and rain. Freezing spray.
.WED NIGHT...SW wind 35 kt. Seas 17 ft. Rain.
.THU AND THU NIGHT...W wind 35 kt. Seas 20 ft.
.FRI...NW wind 30 kt. Seas 17 ft.
.SAT...W wind 20 kt. Seas 10 ft.
.SUN...W wind 15 kt. Seas 5 ft.

$$

PKZ770-101115-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 8 ft. Snow showers.
.WED...SW wind 30 kt increasing to 40 kt in the afternoon. Seas
10 ft.
.WED NIGHT...SW wind 35 kt. Seas 15 ft. Rain.
.THU AND THU NIGHT...W wind 35 kt. Seas 19 ft.
.FRI...NW wind 25 kt. Seas 17 ft.
.SAT...W wind 15 kt. Seas 9 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.

$$

PKZ772-101115-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 9 ft. Snow showers.
.WED...SW wind 35 kt increasing to 45 kt in the afternoon. Seas
10 ft building to 15 ft in the afternoon. Rain and snow.
.WED NIGHT...SW wind 40 kt diminishing to 30 kt after midnight.
Seas 19 ft.
.THU AND THU NIGHT...W wind 35 kt. Seas 23 ft.
.FRI...NW wind 25 kt. Seas 18 ft.
.SAT THROUGH SUN...W wind 15 kt. Seas 7 ft.

$$

PKZ771-101115-
Unalaska Bay-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 4 ft. Snow showers.
.WED...SW wind 20 kt. Seas 3 ft.
.WED NIGHT...SW wind 25 kt. Seas 4 ft. Rain.
.THU...W wind 25 kt. Seas 4 ft.
.THU NIGHT...W wind 30 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 5 ft.
.SAT...W wind 10 kt. Seas 3 ft.
.SUN...Variable wind less than 10 kt. Seas 3 ft.

$$

PKZ773-101115-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 6 ft.
.WED...SW wind 35 kt. Seas 6 ft building to 10 ft in the
afternoon.
.WED NIGHT...SW wind 35 kt. Seas 13 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 12 ft.
.FRI...NW wind 25 kt. Seas 10 ft.
.SAT...W wind 15 kt. Seas 6 ft.
.SUN...N wind 15 kt. Seas 3 ft.

$$

PKZ774-101115-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 8 ft.
.WED...SW wind 35 kt. Seas 11 ft.
.WED NIGHT...SW wind 40 kt diminishing to 30 kt after midnight.
Seas 15 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 15 ft.
.FRI...NW wind 25 kt. Seas 13 ft.
.SAT...NW wind 15 kt. Seas 7 ft.
.SUN...N wind 15 kt. Seas 5 ft.

$$

PKZ775-101115-
Nikolski to Seguam Bering Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 8 ft.
.WED...SW wind 35 kt increasing to 45 kt in the afternoon. Seas
14 ft.
.WED NIGHT...SW wind 40 kt. Seas 17 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 19 ft.
.FRI...NW wind 25 kt. Seas 14 ft.
.SAT...Variable wind 10 kt. Seas 7 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.

$$

PKZ776-101115-
Nikolski to Seguam Bering Side from 15 to 85 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...SW wind 30 kt. Seas 9 ft.
.WED...SW wind 45 kt. Seas 13 ft building to 18 ft in the
afternoon.
.WED NIGHT...SW wind 40 kt. Seas 19 ft.
.THU...W wind 35 kt. Seas 23 ft.
.THU NIGHT...W wind 30 kt. Seas 21 ft.
.FRI...NW wind 25 kt. Seas 15 ft.
.SAT...Variable wind 10 kt. Seas 7 ft.
.SUN...S wind 15 kt. Seas 4 ft.

$$

PKZ777-101115-
Nikolski to Seguam Pacfic Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 7 ft.
.WED...SW wind 45 kt. Seas 14 ft. Rain.
.WED NIGHT...SW wind 45 kt diminishing to 35 kt after midnight.
Seas 17 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 17 ft.
.FRI...NW wind 25 kt. Seas 12 ft.
.SAT...Variable wind 10 kt. Seas 6 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.

$$

PKZ778-101115-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas 8 ft.
.WED...SW wind 40 kt. Seas 14 ft. Rain.
.WED NIGHT...SW wind 45 kt diminishing to 35 kt after midnight.
Seas 18 ft. Rain.
.THU AND THU NIGHT...W wind 30 kt. Seas 18 ft.
.FRI...W wind 25 kt. Seas 14 ft.
.SAT...Variable wind 10 kt. Seas 7 ft.
.SUN...NE wind 15 kt. Seas 5 ft.

$$

PKZ780-101115-
Seguam to Adak Bering Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW wind 20 kt increasing to 35 kt after midnight. Seas
7 ft.
.WED...SW wind 45 kt. Seas 13 ft.
.WED NIGHT...SW wind 40 kt. Seas 13 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 15 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.SAT...S wind 15 kt. Seas 5 ft.
.SUN...Variable wind 10 kt. Seas 3 ft.

$$

PKZ781-101115-
Seguam to Adak Bering Side from 15 to 85 NM-
207 PM AKDT Tue Apr 9 2024

...STORM WARNING WEDNESDAY...

.TONIGHT...SW wind 25 kt increasing to 40 kt after midnight. Seas
10 ft.
.WED...SW wind 50 kt. Seas 19 ft.
.WED NIGHT...SW wind 40 kt. Seas 19 ft.
.THU...W wind 35 kt. Seas 22 ft.
.THU NIGHT...W wind 30 kt. Seas 18 ft.
.FRI...W wind 20 kt. Seas 12 ft.
.SAT THROUGH SUN...SE wind 15 kt. Seas 5 ft.

$$

PKZ782-101115-
Seguam to Adak Pacific Side out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 20 kt becoming SW 30 kt after midnight. Seas 7
ft.
.WED...SW wind 45 kt. Seas 15 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 17 ft.
.THU AND THU NIGHT...W wind 30 kt. Seas 14 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.SAT...S wind 15 kt. Seas 5 ft.
.SUN...Variable wind 10 kt. Seas 5 ft.

$$

PKZ783-101115-
Seguam to Adak Pacific Side from 15 to 75 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 20 kt becoming SW 30 kt after midnight. Seas 8
ft.
.WED...SW wind 45 kt. Seas 13 ft building to 18 ft in the
afternoon. Rain.
.WED NIGHT...SW wind 40 kt. Seas 20 ft. Rain.
.THU AND THU NIGHT...W wind 30 kt. Seas 17 ft.
.FRI...W wind 25 kt. Seas 13 ft.
.SAT...SE wind 15 kt. Seas 7 ft.
.SUN...NE wind 15 kt. Seas 5 ft.

$$

PKZ784-101115-
Adak to Kiska Bering Side-
207 PM AKDT Tue Apr 9 2024

...STORM WARNING THROUGH WEDNESDAY...

.TONIGHT...SW wind 40 kt becoming S 50 kt after midnight. Seas 9
ft building to 15 ft after midnight.
.WED...SW wind 50 kt. Seas 20 ft. Rain.
.WED NIGHT...SW wind 45 kt. Seas 23 ft.
.THU...W wind 40 kt. Seas 23 ft.
.THU NIGHT...W wind 30 kt. Seas 14 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.SAT THROUGH SUN...SE wind 20 kt. Seas 5 ft.

$$

PKZ785-101115-
Adak to Kiska Pacific Side-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...SW wind 30 kt increasing to 45 kt after midnight. Seas
7 ft building to 12 ft after midnight.
.WED...SW wind 45 kt. Seas 20 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 21 ft.
.THU...W wind 35 kt. Seas 21 ft.
.THU NIGHT...W wind 30 kt. Seas 18 ft.
.FRI...W wind 20 kt. Seas 14 ft.
.SAT...SE wind 20 kt. Seas 7 ft.
.SUN...E wind 15 kt. Seas 6 ft.

$$

PKZ786-101115-
Kiska to Attu Bering Side-
207 PM AKDT Tue Apr 9 2024

...STORM WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 55 kt. Seas 20 ft. Rain.
.WED...SW wind 50 kt. Seas 21 ft building to 27 ft in the
afternoon.
.WED NIGHT...SW wind 50 kt. Seas 29 ft.
.THU...W wind 35 kt. Seas 20 ft.
.THU NIGHT...NW wind 25 kt. Seas 14 ft.
.FRI...S wind 20 kt. Seas 10 ft.
.SAT...E wind 20 kt. Seas 6 ft.
.SUN...S wind 20 kt. Seas 7 ft.

$$

PKZ787-101115-
Kiska to Attu Pacific Side-
207 PM AKDT Tue Apr 9 2024

...STORM WARNING TONIGHT AND WEDNESDAY NIGHT...

.TONIGHT...S wind 50 kt. Seas 21 ft. Rain.
.WED...SW wind 45 kt. Seas 25 ft.
.WED NIGHT...SW wind 50 kt diminishing to 40 kt after midnight.
Seas 28 ft.
.THU...W wind 35 kt. Seas 23 ft.
.THU NIGHT...W wind 25 kt. Seas 16 ft.
.FRI...S wind 20 kt. Seas 12 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SUN...S wind 20 kt. Seas 7 ft.

$$

PKZ766-101115-
Pribilof Islands Nearshore Waters-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING WEDNESDAY...

.TONIGHT...W wind 25 kt. Seas 9 ft.
.WED...SW wind 45 kt. Seas 14 ft building to 19 ft in the
afternoon. Snow.
.WED NIGHT...SW wind 30 kt. Seas 19 ft.
.THU...SW wind 40 kt. Seas 25 ft.
.THU NIGHT...NW wind 35 kt. Seas 23 ft.
.FRI...W wind 25 kt. Seas 14 ft.
.SAT...SW wind 15 kt. Seas 6 ft.
.SUN...SW wind 25 kt. Seas 8 ft.

$$

PKZ760-101115-
Bristol Bay greater than 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 25 kt diminishing to 10 kt after midnight. Seas
8 ft subsiding to 5 ft after midnight. Freezing spray.
.WED...S wind 15 kt increasing to 25 kt in the afternoon. Seas 3
ft.
.WED NIGHT...S wind 30 kt. Seas 9 ft. Snow and rain.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...SW wind 35 kt. Seas 14 ft.
.FRI...W wind 30 kt. Seas 13 ft.
.SAT...W wind 25 kt. Seas 8 ft.
.SUN...W wind 20 kt. Seas 4 ft.

$$

PKZ761-101115-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. Seas
6 ft. Freezing spray.
.WED...Variable wind less than 10 kt becoming S 15 kt in the
afternoon. Seas 3 ft.
.WED NIGHT...S wind 25 kt. Seas 4 ft. Snow. Freezing spray.
.THU...SW wind 25 kt. Seas 6 ft.
.THU NIGHT...SW wind 35 kt. Seas 9 ft.
.FRI...W wind 30 kt. Seas 9 ft.
.SAT...W wind 25 kt. Seas 6 ft.
.SUN...W wind 20 kt. Seas 3 ft.

$$

PKZ762-101115-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...NW wind 20 kt diminishing to 10 kt after midnight. Seas
in ice free waters 1 foot.
.WED...SE wind 10 kt becoming S 25 kt in the afternoon. Seas in
ice free waters 2 ft becoming 1 foot in the afternoon. Snow.
.WED NIGHT...S wind 30 kt. Seas in ice free waters 2 ft. Snow.
Freezing spray.
.THU...SW wind 25 kt. Seas in ice free waters 2 ft.
.THU NIGHT...SW wind 30 kt. Seas in ice free waters 2 ft.
.FRI...W wind 30 kt. Seas in ice free waters 2 ft.
.SAT...W wind 20 kt. Seas in ice free waters 1 foot.
.SUN...W wind 15 kt. Seas in ice free waters 1 foot.

$$

PKZ763-101115-
Kuskokwim Delta and Etolin Strait out to 15 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...SW wind 20 kt.
.WED...S wind 30 kt increasing to 40 kt in the afternoon.  Snow.
.WED NIGHT...S wind 35 kt becoming SW 25 kt after midnight.
.THU...SW wind 30 kt.
.THU NIGHT...W wind 30 kt.
.FRI...W wind 25 kt.
.SAT...W wind 20 kt.
.SUN...SW wind 25 kt.

$$

PKZ764-101115-
Kuskokwim Delta from 15 to 80 NM-
207 PM AKDT Tue Apr 9 2024

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

.TONIGHT...W wind 25 kt. Seas in ice free waters 6 ft. Freezing
spray.
.WED...S wind 30 kt increasing to 40 kt in the afternoon. Seas in
ice free waters 6 ft. Snow. Freezing spray.
.WED NIGHT...SW wind 35 kt diminishing to 25 kt after midnight.
Seas in ice free waters 11 ft.
.THU...SW wind 35 kt. Seas in ice free waters 13 ft.
.THU NIGHT...W wind 35 kt. Seas in ice free waters 16 ft.
.FRI...W wind 30 kt. Seas in ice free waters 14 ft.
.SAT...W wind 20 kt. Seas in ice free waters 7 ft.
.SUN...SW wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ765-101115-
North and West of Nunivak Island-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING WEDNESDAY...

.TONIGHT...S wind 25 kt. Snow.
.WED...S wind 30 kt increasing to 40 kt in the afternoon.  Snow.
.WED NIGHT...SW wind 25 kt.
.THU...SW wind 30 kt.
.THU NIGHT...NW wind 25 kt.
.FRI THROUGH SAT...SW wind 20 kt.
.SUN...SW wind 25 kt.

$$

PKZ767-101115-
Saint Matthew Island Waters-
207 PM AKDT Tue Apr 9 2024

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...E of Saint Matthew Island, SW wind 20 kt becoming S 30
kt after midnight. W of Saint Matthew Island, S wind 40 kt. Seas in 
ice free waters 18 ft. Snow and rain.
.WED...S wind 40 kt becoming SW 30 kt in the afternoon. Seas in
ice free waters 17 ft. Snow and rain.
.WED NIGHT...SW wind 30 kt. Seas in ice free waters 20 ft. Snow.
.THU AND THU NIGHT...NW wind 30 kt. Seas in ice free waters 18 ft.
.FRI THROUGH SAT...SW wind 25 kt. Seas in ice free waters 10 ft.
.SUN...SW wind 30 kt. Seas in ice free waters 10 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
451 PM AKDT Mon Apr 8 2024

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

Conditions are generally quiet across Southcentral this
afternoon. Mostly clear skies are present across much of Cook
Inlet north into the Susitna Valley along with scattered cloud
cover across the Copper River Basin associated with the remnants
of a weak upper-level wave moving into the Yukon. However, areas
along the foothills of the Chugach and Talkeetna Mountains are
seeing another round of shower activity capable of producing rimed
snow and/or graupel. A surface low and attendant upper-level low
are moving inland just east of Kayak Island this afternoon. These
features are producing scattered showers just east of Prince
William Sound, although they are slightly further north and east
than previously modeled. As such, while snow showers will become
more likely through early tonight for Cordova/Valdez, the heaviest
looks to remain north and east over portions of the Copper River
Basin as the wave moves through the region.

By Tuesday morning, an upper-level Arctic trough will dive into
Southwest Alaska, with a weak broad low developing near the Barren
Islands. This low will envelop the low to the northeast,
amplifying the conditions across coastal Southcentral. A return to
widespread snowfall will come to the coast from Seward to
Cordova. By this time, cold air will begin to wrap all the way
around the low, ushering a colder air mass into the Kenai
Peninsula up into the Mat-Su from the southeast. Very cold
temperatures aloft (near -40C at 500 mb) coupled with diurnal
heating at the surface will yield a very unstable atmospheric
profile near the low during the afternoon on Tuesday. This will
help fuel vigorous bands of convective high ratio snow showers
streaming into the coast, especially along the eastern Kenai
Peninsula and across the Prince William Sound. Some of this
activity will likely spill over the mountains into interior
Southcentral from Tuesday afternoon into Tuesday night,
potentially affecting parts of the Mat Valley, Anchorage and the
eastern parts of the Kenai Peninsula at times. Snowfall
accumulation could vary wildly depending on exactly where bands of
showers train over the same areas, with the best chance for
several inches of accumulation on Tuesday focused near Seward,
Whittier, Valdez and Cordova.

-ME/TM

&&

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

An Arctic trough has plunged south into Southwest Alaska, and
established a pressure gradient conducive for cold and gusty
northerly winds in the eastern Bering Sea and across the eastern
Aleutian Chain. Strong gap winds south of the Alaska Peninsula
will reach as high to 65 knots (75 mph) in some areas. Extreme
freezing spray along the ice edge will continue through tonight
for most areas, and through Tuesday in Bristol Bay. Some areas of
heavy freezing spray could be possible through gaps south of the
AKPen. These cold and gusty conditions are expected to persist
until Wednesday morning before shutting off.

This pattern shift will be driven by a couplet of lows in the
northern Bering Sea pushing a series of fronts beginning with a
weak front entering the Bering and moving over the Pribilofs by
Tuesday morning. This initial front is not expected to be very
potent, but should bring about an inch of snow to the Pribs by
Tuesday afternoon before being absorbed by a significantly
stronger front rapidly approaching from behind it. This stronger
system will bring storm force winds initially across the western
Aleutians, along with warmer temperatures, and moderate to heavy
rainfall starting Tuesday evening. This system will push quickly
to the northeast, spreading strong winds and rainfall across the
Aleutians, reaching Adak, the Pribilofs, and Nunivak Island by
Wednesday morning. The front will continue to spread rain and
rain/snow mix across the Aleutians through midweek.

As the front moves over Nunivak Island and enters the Kuskokwim
Delta Wednesday morning, temperatures are expected to be cold
enough to allow for widespread moderate to heavy snowfall. The
system will also be bringing strong and gusty winds up to 50 mph,
and this is expected to produce blowing snow. Blowing snow may
reduce visibilities down to one-quarter mile or less at times. The
worst conditions are expected to be along the Kuskokwim Delta
coastline, where snow accumulations may reach up to 8 inches of
new snowfall. As such, a Winter Storm Watch has been issued for
the Kuskokwim Delta from Wednesday morning through Thursday
morning. The front is expected to bring similar conditions to the
Western Capes of Bristol Bay, however being further south, the
presence of warmer air may keep the precipitation wetter, and
harder to loft with gusty winds. However, we will continue to
monitor the latest model trends and will update this region as
needed.

-CL

&&

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

The long term forecast begins on Friday with a shortwave ridge
exiting the eastern Gulf of Alaska and a large upper-level trough
over western Alaska. As a result, low pressure at the surface
spreads across Southwest Alaska, and a surface low briefly
develops over the Gulf early on Friday. A cold air mass will
remain in place over western Alaska while also spilling into the
Gulf. As the trough digs to the east, gusty winds and
precipitation taper off across most of Southwest by Saturday
morning as northwesterly gap winds increase along the Alaska
Peninsula. The system will maintain precipitation across
Southcentral through Saturday. The upper low and its attendant
surface low will exit into Southeast Alaska on Sunday. Model
agreement really begins to diverge on Monday with an Arctic upper-
level low. A potent shortwave is advertised to round the base of
the low and enter into western Alaska, however, the exact
placement of the wave (and, thus, the attendant surface low) has
yet to be ironed out. The deterministic GFS and Canadian NH runs
are the most similar to each other, while the EC is the slowest in
bringing the shortwave to western Alaska.

AF

&&

.AVIATION...

PANC...VFR conditions and light winds will persist. Isolated
showers may develop along the Anchorage Hillside and foothills of
the Chugach Mountains Tuesday afternoon and evening. However, any
shower activity should stay along the higher terrain and away from
the terminal.

&&

SPECIAL WEATHER STATEMENT
National Weather Service ANCHORAGE AK
258 AM AKDT Tue Apr 9 2024

AKZ103-126-100200-
East Turnagain Arm-Western Prince William Sound-
Including the cities of Girdwood, Portage, Whittier, Seward,
and Moose Pass
258 AM AKDT Tue Apr 9 2024

...BANDS OF MODERATE TO HEAVY SNOW SHOWERS ACROSS EASTERN KENAI
PENINSULA AND EASTERN TURNAGAIN ARM THROUGH TUESDAY EVENING...

Bands of moderate to heavy snow showers will move across Eastern
Kenai Peninsula and Eastern Turnagain Arm through Tuesday evening.
The first of these bands will move through the area early to mid
Tuesday morning with the second late Tuesday morning through mid
Tuesday afternoon. Snowfall rates may approach 1 to 2 inches per
hour in heavier snow showers, reducing visibility to as low as
one quarter mile at times. Motorists are urged to slow down and
use caution when driving through heavy snow showers.

The highest snowfall accumulations are expected along Portage
Glacier Road, where 5 to 10 inches of snow could fall. Elsewhere
along the Seward Highway, 2 to 6 inches of snow, with locally
higher amounts, are possible. Any snow accumulations on area
roads this morning may turn slushy or wet by afternoon as
temperatures warm into the mid 30s.