Gale Warning 342, NWS Anchorage, AK

120 
FZAK52 PAFC 012330
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
330 PM AKDT Thu May 1 2025

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.

PKZ199-021200-
330 PM AKDT Thu May 1 2025
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 1001 mb low 290 nm South of Shemya moves to 140 nm South of 
Seguam Island at 991 mb Fri afternoon, continuing to 200 nm South 
of Cape Sarichef at 994 mb for Sat afternoon. Its front spreads 
over the Aleutians and Alaska Peninsula by Sat afternoon. Several 
troughs move over the Central and Eastern Bering through Sat 
afternoon.


$$

PKZ750-021200-
Sitkinak to Castle Cape out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW wind 25 kt. Seas 5 ft.
.FRI...W wind 30 kt. Seas 5 ft.
.FRI NIGHT...W wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 3 ft.
.SAT NIGHT...E wind 25 kt. Seas 6 ft.
.SUN...NE wind 30 kt. Seas 10 ft.
.MON THROUGH TUE...N wind 15 kt. Seas 6 ft.

$$

PKZ751-021200-
Sitkinak to Castle Cape from 15 to 100 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW wind 25 kt. Seas 8 ft.
.FRI...W wind 25 kt. Seas 9 ft.
.FRI NIGHT...W wind 20 kt. Seas 7 ft.
.SAT...SE wind 20 kt. Seas 5 ft.
.SAT NIGHT...E wind 20 kt. Seas 6 ft.
.SUN...SE wind 25 kt. Seas 9 ft.
.MON THROUGH TUE...N wind 25 kt. Seas 9 ft.

$$

PKZ752-021200-
Castle Cape to Cape Tolstoi out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW wind 25 kt. Seas 3 ft.
.FRI...NW wind 25 kt becoming W 15 kt in the afternoon. Seas 3 ft.
.FRI NIGHT...W wind 15 kt in the evening becoming variable 10 kt.
Seas 2 ft.
.SAT...E wind 20 kt. Seas 3 ft.
.SAT NIGHT...E wind 15 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 25 kt. Seas 6 ft.
.TUE...NW wind 20 kt. Seas 4 ft.

$$

PKZ753-021200-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TONIGHT...NW wind 25 kt. Seas 8 ft.
.FRI...W wind 25 kt diminishing to 15 kt in the afternoon. Seas 7 
ft.
.FRI NIGHT...SE wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 6 ft.
.SAT NIGHT...E wind 15 kt. Seas 7 ft.
.SUN...NW wind 25 kt. Seas 9 ft.
.MON THROUGH TUE...NW wind 30 kt. Seas 11 ft.

$$

PKZ754-021200-
Cape Tolstoi to Cape Sarichef out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 4 ft.
.FRI...NW wind 20 kt becoming variable less than 10 kt in the
afternoon. Seas 3 ft.
.FRI NIGHT...E wind 20 kt. Seas 3 ft. Rain.
.SAT...NE wind 20 kt. Seas 5 ft.
.SAT NIGHT...NE wind 15 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 5 ft.
.TUE...NW wind 25 kt. Seas 5 ft.

$$

PKZ755-021200-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 25 kt. Seas 7 ft.
.FRI...W wind 15 kt becoming variable less than 10 kt in the
afternoon. Seas 6 ft.
.FRI NIGHT...SE wind 20 kt. Seas 5 ft. Rain.
.SAT...SE wind 20 kt. Seas 7 ft.
.SAT NIGHT...E wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 13 ft.
.TUE...NW wind 30 kt. Seas 12 ft.

$$

PKZ756-021200-
Port Heiden to Nelson Lagoon out to 15 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...W wind 20 kt. Seas 6 ft. Snow showers and rain showers.
.FRI...W wind 20 kt diminishing to 10 kt in the afternoon. Seas 6 
ft.
.FRI NIGHT...Variable wind 10 kt. Seas 4 ft.
.SAT...NE wind 15 kt. Seas 3 ft.
.SAT NIGHT...E wind 20 kt. Seas 3 ft.
.SUN...N wind 30 kt. Seas 8 ft.
.MON...NW wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 9 ft.

$$

PKZ757-021200-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...W wind 20 kt. Seas 7 ft.
.FRI...NW wind 20 kt diminishing to 10 kt in the afternoon. Seas 7 
ft.
.FRI NIGHT...NW wind 15 kt. Seas 5 ft.
.SAT AND SAT NIGHT...E wind 20 kt. Seas 4 ft.
.SUN...N wind 30 kt. Seas 10 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ758-021200-
Nelson Lagoon to Cape Sarichef out to 15 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...W wind 20 kt. Seas 6 ft.
.FRI...NW wind 15 kt becoming variable less than 10 kt in the
afternoon. Seas 5 ft.
.FRI NIGHT...E wind 20 kt. Seas 3 ft.
.SAT AND SAT NIGHT...NE wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 15 ft.
.TUE...NW wind 30 kt. Seas 11 ft.

$$

PKZ759-021200-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt. Seas 7 ft.
.FRI...NW wind 15 kt becoming variable less than 10 kt in the
afternoon. Seas 5 ft.
.FRI NIGHT...NE wind 20 kt. Seas 4 ft.
.SAT AND SAT NIGHT...NE wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 16 ft.
.TUE...NW wind 30 kt. Seas 12 ft.

$$

PKZ770-021200-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...NW wind 20 kt diminishing to 10 kt after midnight. Seas 6
ft.
.FRI...NE wind increasing to 20 kt. Seas 4 ft.
.FRI NIGHT...NE wind 25 kt. Seas 5 ft.
.SAT...N wind 25 kt. Seas 7 ft.
.SAT NIGHT...N wind 30 kt. Seas 8 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 16 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ772-021200-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...NW wind 20 kt diminishing to 10 kt after midnight. Seas 6
ft.
.FRI...NE wind increasing to 20 kt. Seas 4 ft.
.FRI NIGHT...NE wind 25 kt. Seas 6 ft.
.SAT AND SAT NIGHT...N wind 25 kt. Seas 7 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 16 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ771-021200-
Unalaska Bay-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.FRI...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 3 ft.
.FRI NIGHT...E wind 10 kt becoming NE after midnight. Seas 3 ft.
.SAT...N wind 25 kt. Seas 5 ft.
.SAT NIGHT...N wind 20 kt. Seas 7 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 13 ft.
.TUE...W wind 20 kt. Seas 3 ft.

$$

PKZ773-021200-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY NIGHT...

.TONIGHT...NW wind 20 kt becoming variable less 10 kt after 
midnight. Seas 4 ft.
.FRI...E wind increasing to 20 kt. Seas 3 ft.
.FRI NIGHT...E wind 25 kt. Seas 6 ft. Rain and snow.
.SAT...N wind 25 kt. Seas 6 ft.
.SAT NIGHT...N wind 30 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 9 ft.
.TUE...W wind 30 kt. Seas 6 ft.

$$

PKZ774-021200-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...NW wind 20 kt becoming variable less than 10 kt after
midnight. Seas 6 ft.
.FRI...NE wind 15 kt becoming E 25 kt in the afternoon. Seas 5 ft.
.FRI NIGHT...E wind 30 kt. Seas 8 ft. Rain with snow.
.SAT...NE wind 25 kt. Seas 8 ft.
.SAT NIGHT...N wind 30 kt. Seas 7 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 14 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ775-021200-
Nikolski to Seguam Bering Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...N wind 10 kt becoming E 15 kt after midnight. Seas 5 ft.
.FRI...NE wind 15 kt increasing to 25 kt in the afternoon. Seas 6 
ft.
.FRI NIGHT...NE wind 30 kt. Seas 9 ft.
.SAT AND SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 14 ft.
.TUE...SW wind 25 kt. Seas 9 ft.

$$

PKZ776-021200-
Nikolski to Seguam Bering Side from 15 to 85 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...N wind 10 kt becoming E 15 kt after midnight. Seas 5 ft.
.FRI...NE wind increasing to 25 kt. Seas 5 ft.
.FRI NIGHT...NE wind 25 kt. Seas 8 ft.
.SAT AND SAT NIGHT...N wind 25 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 15 ft.
.TUE...SW wind 20 kt. Seas 9 ft.

$$

PKZ777-021200-
Nikolski to Seguam Pacfic Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...N wind 10 kt becoming E 15 kt after midnight. Seas 4 ft.
.FRI...E wind 20 kt increasing to 30 kt in the afternoon. Seas 8
ft. Rain.
.FRI NIGHT...NE wind 30 kt. Seas 9 ft. Rain and snow.
.SAT AND SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN...NW wind 40 kt. Seas 11 ft.
.MON...NW wind 35 kt. Seas 12 ft.
.TUE...SW wind 25 kt. Seas 8 ft.

$$

PKZ778-021200-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...N wind 10 kt becoming E 20 kt after midnight. Seas 5 ft.
.FRI...E wind 30 kt. Seas 9 ft. Rain.
.FRI NIGHT...NE wind 30 kt. Seas 10 ft. Rain and snow.
.SAT AND SAT NIGHT...N wind 30 kt. Seas 11 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 13 ft.
.TUE...SW wind 25 kt. Seas 11 ft.

$$

PKZ780-021200-
Seguam to Adak Bering Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E wind increasing to 20 kt. Seas 4 ft.
.FRI...NE wind 30 kt. Seas 6 ft. Snow and rain.
.FRI NIGHT...N wind 30 kt. Seas 8 ft. Snow and rain.
.SAT...N wind 30 kt. Seas 8 ft.
.SAT NIGHT...NW wind 25 kt. Seas 8 ft.
.SUN...NW wind 30 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...S wind 20 kt. Seas 5 ft.

$$

PKZ781-021200-
Seguam to Adak Bering Side from 15 to 85 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E wind increasing to 15 kt. Seas 4 ft.
.FRI...NE wind 25 kt. Seas 6 ft. Snow and rain.
.FRI NIGHT...N wind 30 kt. Seas 7 ft.
.SAT AND SAT NIGHT...NW wind 25 kt. Seas 8 ft.
.SUN...NW wind 30 kt. Seas 11 ft.
.MON...W wind 25 kt. Seas 11 ft.
.TUE...S wind 20 kt. Seas 7 ft.

$$

PKZ782-021200-
Seguam to Adak Pacific Side out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...E wind increasing to 25 kt. Seas 7 ft. Snow.
.FRI...NE wind 30 kt. Seas 8 ft. Rain and snow.
.FRI NIGHT...N wind 30 kt. Seas 8 ft. Rain and snow.
.SAT AND SAT NIGHT...NW wind 30 kt. Seas 7 ft.
.SUN...NW wind 30 kt. Seas 6 ft.
.MON...W wind 30 kt. Seas 6 ft.
.TUE...SW wind 20 kt. Seas 11 ft.

$$

PKZ783-021200-
Seguam to Adak Pacific Side from 15 to 75 NM-
330 PM AKDT Thu May 1 2025

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E wind increasing to 25 kt. Seas 9 ft. Rain and snow.
.FRI...NE wind 35 kt. Seas 11 ft. Rain and snow.
.FRI NIGHT...N wind 35 kt. Seas 11 ft. Rain and snow.
.SAT AND SAT NIGHT...NW wind 30 kt. Seas 10 ft.
.SUN...NW wind 30 kt. Seas 10 ft.
.MON...W wind 30 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 14 ft.

$$

PKZ784-021200-
Adak to Kiska Bering Side-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...NE wind increasing to 20 kt. Seas 5 ft. Snow.
.FRI...N wind 25 kt. Seas 7 ft. Snow.
.FRI NIGHT...N wind 25 kt. Seas 6 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SAT NIGHT...NW wind 25 kt. Seas 7 ft.
.SUN...NW wind 25 kt. Seas 7 ft.
.MON...S wind 25 kt. Seas 6 ft.
.TUE...S wind 25 kt. Seas 10 ft.

$$

PKZ785-021200-
Adak to Kiska Pacific Side-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...NE wind increasing to 25 kt. Seas 9 ft. Rain and snow.
.FRI...N wind 30 kt. Seas 10 ft. Rain and snow.
.FRI NIGHT...N wind 30 kt. Seas 10 ft.
.SAT AND SAT NIGHT...NW wind 25 kt. Seas 8 ft.
.SUN...NW wind 25 kt. Seas 7 ft.
.MON...S wind 25 kt. Seas 8 ft.
.TUE...S wind 25 kt. Seas 16 ft.

$$

PKZ786-021200-
Kiska to Attu Bering Side-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...N wind 20 kt. Seas 7 ft.
.FRI...N wind 25 kt. Seas 7 ft.
.FRI NIGHT...NW wind 25 kt. Seas 7 ft.
.SAT AND SAT NIGHT...NW wind 20 kt. Seas 6 ft.
.SUN...S wind 20 kt. Seas 5 ft.
.MON THROUGH TUE...S wind 25 kt. Seas 13 ft.

$$

PKZ787-021200-
Kiska to Attu Pacific Side-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...NE wind 25 kt. Seas 9 ft. Rain.
.FRI...N wind 25 kt. Seas 9 ft.
.FRI NIGHT...NW wind 25 kt. Seas 8 ft.
.SAT AND SAT NIGHT...NW wind 20 kt. Seas 6 ft.
.SUN...S wind 20 kt. Seas 4 ft.
.MON...SE wind 30 kt. Seas 13 ft.
.TUE...S wind 30 kt. Seas 17 ft.

$$

PKZ766-021200-
Pribilof Islands Nearshore Waters-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 15 kt. Seas 5 ft.
.FRI...N wind 10 kt. Seas 4 ft.
.FRI NIGHT...N wind 15 kt. Seas 3 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SAT NIGHT...N wind 25 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 11 ft.
.TUE...W wind 20 kt. Seas 7 ft.

$$

PKZ760-021200-
Bristol Bay greater than 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind increasing to 20 kt. Seas 6 ft.
.FRI...W wind 25 kt. Seas 6 ft.
.FRI NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 6 ft.
.SAT...SE wind 15 kt. Seas 3 ft.
.SAT NIGHT...E wind 20 kt. Seas 4 ft.
.SUN...NE wind 30 kt. Seas 8 ft.
.MON...N wind 20 kt. Seas 6 ft.
.TUE...W wind 20 kt. Seas 6 ft.

$$

PKZ761-021200-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind increasing to 20 kt. Seas 5 ft.
.FRI...W wind 25 kt. Seas 6 ft.
.FRI NIGHT...W wind 25 kt becoming SW 15 kt after midnight. Seas
5 ft.
.SAT...SE wind 15 kt. Seas 3 ft.
.SAT NIGHT...E wind 20 kt. Seas 2 ft.
.SUN...NE wind 25 kt. Seas 5 ft.
.MON...N wind 20 kt. Seas 5 ft.
.TUE...W wind 20 kt. Seas 5 ft.

$$

PKZ762-021200-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
330 PM AKDT Thu May 1 2025

...SMALL CRAFT ADVISORY FRIDAY AND FRIDAY NIGHT...

.TONIGHT...W wind increasing to 20 kt. Seas 3 ft.
.FRI...NW wind 25 kt. Seas 4 ft.
.FRI NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 4 ft.
.SAT...S wind 10 kt. Seas 2 ft.
.SAT NIGHT...E wind 20 kt. Seas 2 ft.
.SUN...NE wind 35 kt. Seas 6 ft.
.MON...N wind 20 kt. Seas 4 ft.
.TUE...W wind 15 kt. Seas 3 ft.

$$

PKZ763-021200-
Kuskokwim Delta and Etolin Strait out to 15 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt. Seas in ice free waters 3 ft.
.FRI...NW wind 20 kt. Seas in ice free waters 3 ft.
.FRI NIGHT...NW wind 15 kt. Seas in ice free waters 2 ft.
.SAT...N wind 10 kt. Seas in ice free waters 1 foot.
.SAT NIGHT...N wind 15 kt. Seas in ice free waters 2 ft.
.SUN...N wind 25 kt. Seas in ice free waters 5 ft.
.MON...NW wind 30 kt. Seas in ice free waters 5 ft.
.TUE...NW wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ764-021200-
Kuskokwim Delta from 15 to 80 NM-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 5 ft. Freezing spray.
.FRI NIGHT...NW wind 15 kt diminishing to 10 kt after midnight.
Seas 4 ft.
.SAT...N wind 15 kt. Seas 3 ft.
.SAT NIGHT...NE wind 20 kt. Seas 4 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 9 ft.
.TUE...NW wind 25 kt. Seas 8 ft.

$$

PKZ765-021200-
North and West of Nunivak Island-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt.
.FRI...NW wind 15 kt.
.FRI NIGHT...NW wind 15 kt.
.SAT...Variable wind 10 kt.
.SAT NIGHT...N wind 20 kt.
.SUN...N wind 25 kt.
.MON...NW wind 30 kt.
.TUE...NW wind 25 kt.

$$

PKZ767-021200-
Saint Matthew Island Waters-
330 PM AKDT Thu May 1 2025

.TONIGHT...NW wind 20 kt. Seas in ice free waters 3 ft.
.FRI...NW wind 20 kt. Seas in ice free waters 4 ft. Freezing
spray.
.FRI NIGHT...NW wind 15 kt E of Saint Matthew Island... NW 20 kt W
of Saint Matthew Island. Seas in ice free waters 5 ft. Freezing
spray.
.SAT AND SAT NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.SUN THROUGH MON...NW wind 25 kt. Seas in ice free waters 5 ft.
.TUE...N wind 15 kt. Seas in ice free waters 5 ft.

$$

391 
FZAK52 PAFC 021145
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 AM AKDT Fri May 2 2025

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.

PKZ199-030015-
345 AM AKDT Fri May 2 2025
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 996 mb low 180 nm SW of Adak moves to 180 nm S of Sand Point at
992 mb by Sun morning. Its front spreads over the Aleutians and 
Alaska Peninsula for Sun morning. Several troughs move over the 
central and eastern Bering Sea through Sun morning.

$$

PKZ750-030015-
Sitkinak to Castle Cape out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 30 kt. Seas 5 ft.
.TONIGHT...W wind 20 kt. Seas 5 ft.
.SAT...Variable wind 10 kt becoming SE 20 kt in the afternoon.
Seas 2 ft.
.SAT NIGHT...E wind 25 kt. Seas 6 ft.
.SUN...E wind 30 kt. Seas 9 ft.
.MON THROUGH TUE...N wind 15 kt. Seas 6 ft.

$$

PKZ751-030015-
Sitkinak to Castle Cape from 15 to 100 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 9 ft.
.TONIGHT...W wind 20 kt. Seas 8 ft.
.SAT...SE wind 20 kt. Seas 5 ft. Rain.
.SAT NIGHT...SE wind 20 kt. Seas 6 ft.
.SUN...S wind 25 kt. Seas 9 ft.
.MON THROUGH TUE...N wind 20 kt. Seas 9 ft.

$$

PKZ752-030015-
Castle Cape to Cape Tolstoi out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 3 ft.
.TONIGHT...W wind 15 kt in the evening becoming variable 10 kt.
Seas 2 ft.
.SAT...E wind 20 kt. Seas 2 ft. Rain and snow.
.SAT NIGHT...E wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 25 kt. Seas 6 ft.
.TUE...NW wind 20 kt. Seas 4 ft.

$$

PKZ753-030015-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas 7 ft.
.TONIGHT...SE wind 20 kt. Seas 6 ft.
.SAT...SE wind 20 kt. Seas 6 ft. Rain and snow.
.SAT NIGHT...E wind 20 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 10 ft.

$$

PKZ754-030015-
Cape Tolstoi to Cape Sarichef out to 15 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt. Seas 3 ft.
.TONIGHT...E wind 20 kt. Seas 3 ft.
.SAT...NE wind 20 kt. Seas 5 ft. Rain and snow.
.SAT NIGHT...NE wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 5 ft.
.TUE...NW wind 25 kt. Seas 5 ft.

$$

PKZ755-030015-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
345 AM AKDT Fri May 2 2025

.TODAY...W wind 20 kt. Seas 6 ft.
.TONIGHT...SE wind 20 kt. Seas 5 ft.
.SAT...SE wind 20 kt. Seas 7 ft. Rain and snow.
.SAT NIGHT...E wind 20 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 15 ft.
.TUE...NW wind 30 kt. Seas 12 ft.

$$

PKZ756-030015-
Port Heiden to Nelson Lagoon out to 15 NM-
345 AM AKDT Fri May 2 2025

.TODAY...W wind 20 kt. Seas 6 ft.
.TONIGHT...NW wind 15 kt. Seas 4 ft.
.SAT...NE wind 15 kt. Seas 3 ft.
.SAT NIGHT...NE wind 20 kt. Seas 4 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 8 ft.

$$

PKZ757-030015-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt. Seas 6 ft.
.TONIGHT...NW wind 15 kt. Seas 5 ft.
.SAT...NE wind 20 kt. Seas 3 ft.
.SAT NIGHT...NE wind 25 kt. Seas 5 ft.
.SUN...N wind 35 kt. Seas 11 ft.
.MON...NW wind 30 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 9 ft.

$$

PKZ758-030015-
Nelson Lagoon to Cape Sarichef out to 15 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 15 kt. Seas 5 ft.
.TONIGHT...E wind 20 kt. Seas 4 ft.
.SAT...NE wind 20 kt. Seas 4 ft. Rain and snow.
.SAT NIGHT...NE wind 20 kt. Seas 5 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 16 ft.
.TUE...NW wind 25 kt. Seas 11 ft.

$$

PKZ759-030015-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt in the morning becoming variable 10 kt.
Seas 6 ft.
.TONIGHT...NE wind 20 kt. Seas 4 ft.
.SAT...NE wind 20 kt. Seas 4 ft.
.SAT NIGHT...NE wind 25 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 16 ft.
.TUE...NW wind 25 kt. Seas 11 ft.

$$

PKZ770-030015-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...NE wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 25 kt. Seas 4 ft.
.SAT...NE wind 30 kt. Seas 7 ft. Rain and snow.
.SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 17 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ772-030015-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...NE wind 20 kt. Seas 5 ft.
.TONIGHT...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 30 kt. Seas 7 ft.
.SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 16 ft.
.TUE...W wind 30 kt. Seas 11 ft.

$$

PKZ771-030015-
Unalaska Bay-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY SATURDAY...

.TODAY...Variable wind less than 10 kt becoming E 10 kt in the
afternoon. Seas 3 ft.
.TONIGHT...E wind 10 kt becoming NE after midnight. Seas 3 ft.
Snow and rain.
.SAT...N wind 25 kt. Gusts to 35 kt. Seas 3 ft building to 5 ft in 
the afternoon. Rain and snow.
.SAT NIGHT...N wind 25 kt. Seas 7 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 15 ft.
.TUE...W wind 20 kt. Seas 3 ft.

$$

PKZ773-030015-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY TONIGHT AND SATURDAY...

.TODAY...E wind 20 kt. Seas 3 ft.
.TONIGHT...E wind 25 kt. Seas 7 ft. Rain and snow.
.SAT...N wind 25 kt. Seas 7 ft. Rain and snow.
.SAT NIGHT...N wind 30 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 9 ft.
.TUE...W wind 30 kt. Seas 7 ft.

$$

PKZ774-030015-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 15 kt becoming E 25 kt in the afternoon.
Seas 5 ft.
.TONIGHT...E wind 30 kt. Seas 8 ft. Rain and snow.
.SAT...NE wind 25 kt. Seas 9 ft. Rain and snow.
.SAT NIGHT...N wind 35 kt. Seas 8 ft.
.SUN THROUGH MON...NW wind 40 kt. Seas 14 ft.
.TUE...W wind 30 kt. Seas 12 ft.

$$

PKZ775-030015-
Nikolski to Seguam Bering Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 25 kt. Seas 6 ft.
.TONIGHT...NE wind 30 kt. Seas 8 ft. Rain and snow.
.SAT...N wind 30 kt. Seas 9 ft.
.SAT NIGHT...N wind 30 kt. Seas 10 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 13 ft.
.TUE...SW wind 20 kt. Seas 8 ft.

$$

PKZ776-030015-
Nikolski to Seguam Bering Side from 15 to 85 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 25 kt. Seas 5 ft.
.TONIGHT...NE wind 30 kt. Seas 8 ft.
.SAT...N wind 30 kt. Seas 8 ft.
.SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 13 ft.
.TUE...SW wind 20 kt. Seas 8 ft.

$$

PKZ777-030015-
Nikolski to Seguam Pacfic Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...GALE WARNING SATURDAY...

.TODAY...E wind 20 kt increasing to 30 kt in the afternoon.
Seas 7 ft.
.TONIGHT...NE wind 30 kt. Seas 9 ft. Rain and snow.
.SAT...N wind 35 kt. Seas 9 ft.
.SAT NIGHT...N wind 30 kt. Seas 9 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 11 ft.
.TUE...SW wind 25 kt. Seas 7 ft.

$$

PKZ778-030015-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
345 AM AKDT Fri May 2 2025

...GALE WARNING SATURDAY...

.TODAY...E wind 30 kt. Seas 9 ft. Rain and snow.
.TONIGHT...NE wind 30 kt. Seas 10 ft. Rain and snow.
.SAT...N wind 35 kt. Seas 12 ft.
.SAT NIGHT...N wind 35 kt. Seas 12 ft.
.SUN THROUGH MON...NW wind 35 kt. Seas 13 ft.
.TUE...SW wind 25 kt. Seas 8 ft.

$$

PKZ780-030015-
Seguam to Adak Bering Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 30 kt. Seas 6 ft. Rain and snow.
.TONIGHT...N wind 30 kt. Seas 8 ft. Rain showers.
.SAT...N wind 30 kt. Seas 8 ft.
.SAT NIGHT...NW wind 30 kt. Seas 9 ft.
.SUN...NW wind 30 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...SW wind 20 kt. Seas 5 ft.

$$

PKZ781-030015-
Seguam to Adak Bering Side from 15 to 85 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 25 kt. Seas 6 ft. Rain and snow.
.TONIGHT...N wind 30 kt. Seas 7 ft.
.SAT...N wind 25 kt. Seas 8 ft.
.SAT NIGHT...NW wind 30 kt. Seas 9 ft.
.SUN...NW wind 30 kt. Seas 10 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...SW wind 20 kt. Seas 6 ft.

$$

PKZ782-030015-
Seguam to Adak Pacific Side out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...NE wind 30 kt. Seas 8 ft. Rain and snow.
.TONIGHT...N wind 30 kt. Seas 8 ft. Rain and snow.
.SAT...N wind 30 kt. Seas 7 ft.
.SAT NIGHT...NW wind 30 kt. Seas 6 ft.
.SUN...NW wind 30 kt. Seas 6 ft.
.MON...W wind 30 kt. Seas 5 ft.
.TUE...SW wind 20 kt. Seas 6 ft.

$$

PKZ783-030015-
Seguam to Adak Pacific Side from 15 to 75 NM-
345 AM AKDT Fri May 2 2025

...GALE WARNING TONIGHT...

.TODAY...NE wind 30 kt. Seas 11 ft. Rain and snow.
.TONIGHT...N wind 35 kt. Seas 11 ft. Rain and snow.
.SAT...N wind 30 kt. Seas 11 ft.
.SAT NIGHT...NW wind 30 kt. Seas 10 ft.
.SUN...NW wind 30 kt. Seas 10 ft.
.MON...W wind 30 kt. Seas 9 ft.
.TUE...SW wind 25 kt. Seas 9 ft.

$$

PKZ784-030015-
Adak to Kiska Bering Side-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 7 ft. Rain and snow.
.TONIGHT...N wind 25 kt. Seas 7 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SAT NIGHT...NW wind 25 kt. Seas 7 ft.
.SUN...NW wind 25 kt. Seas 7 ft.
.MON THROUGH TUE...SW wind 20 kt. Seas 7 ft.

$$

PKZ785-030015-
Adak to Kiska Pacific Side-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...N wind 30 kt. Seas 10 ft. Rain and snow.
.TONIGHT...N wind 30 kt. Seas 10 ft.
.SAT...NW wind 25 kt. Seas 8 ft.
.SAT NIGHT...NW wind 25 kt. Seas 7 ft.
.SUN...NW wind 25 kt. Seas 7 ft.
.MON...SW wind 20 kt. Seas 6 ft.
.TUE...SW wind 25 kt. Seas 11 ft.

$$

PKZ786-030015-
Kiska to Attu Bering Side-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 25 kt. Seas 7 ft.
.TONIGHT...NW wind 25 kt. Seas 7 ft.
.SAT...NW wind 20 kt. Seas 6 ft.
.SAT NIGHT...NW wind 20 kt. Seas 5 ft.
.SUN...SW wind 20 kt. Seas 4 ft.
.MON...S wind 20 kt. Seas 10 ft.
.TUE...S wind 25 kt. Seas 12 ft.

$$

PKZ787-030015-
Kiska to Attu Pacific Side-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...N wind 30 kt. Seas 9 ft.
.TONIGHT...NW wind 25 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SAT NIGHT...W wind 20 kt. Seas 5 ft.
.SUN...SW wind 20 kt. Seas 5 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 13 ft.

$$

PKZ766-030015-
Pribilof Islands Nearshore Waters-
345 AM AKDT Fri May 2 2025

.TODAY...Variable wind 10 kt. Seas 4 ft.
.TONIGHT...N wind 15 kt. Seas 4 ft.
.SAT...N wind 20 kt. Seas 4 ft. Freezing spray in the morning.
.SAT NIGHT...N wind 25 kt. Seas 6 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 10 ft.
.TUE...NW wind 20 kt. Seas 7 ft.

$$

PKZ760-030015-
Bristol Bay greater than 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 6 ft.
.TONIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 6 ft.
.SAT...S wind 10 kt becoming E in the afternoon. Seas 3 ft.
.SAT NIGHT...E wind 25 kt. Seas 4 ft.
.SUN...NE wind 35 kt. Seas 8 ft.
.MON...N wind 30 kt. Seas 8 ft.
.TUE...W wind 15 kt. Seas 5 ft.

$$

PKZ761-030015-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 5 ft.
.TONIGHT...W wind 25 kt becoming SW 15 kt after midnight.
Seas 5 ft.
.SAT...SE wind 10 kt becoming E in the afternoon. Seas 3 ft.
.SAT NIGHT...E wind 25 kt. Seas 3 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 4 ft.
.TUE...W wind 15 kt. Seas 4 ft.

$$

PKZ762-030015-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
345 AM AKDT Fri May 2 2025

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 4 ft.
.TONIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas 4 ft.
.SAT...W wind 10 kt becoming SE in the afternoon. Seas 2 ft.
.SAT NIGHT...E wind 20 kt. Seas 2 ft.
.SUN...NE wind 35 kt. Seas 6 ft.
.MON...N wind 30 kt. Seas 4 ft.
.TUE...NW wind 15 kt. Seas 2 ft.

$$

PKZ763-030015-
Kuskokwim Delta and Etolin Strait out to 15 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt. Seas in ice free waters 3 ft. Patchy dense
fog in the morning.
.TONIGHT...NW wind 15 kt. Seas in ice free waters 2 ft.
.SAT...N wind 10 kt. Seas in ice free waters 2 ft.
.SAT NIGHT...N wind 20 kt. Seas in ice free waters 2 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas in ice free waters 5 ft.
.TUE...NW wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ764-030015-
Kuskokwim Delta from 15 to 80 NM-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt. Seas 5 ft. 
.TONIGHT...NW wind 15 kt. Seas 4 ft.
.SAT...N wind 10 kt becoming NE in the afternoon. Seas 3 ft.
.SAT NIGHT...NE wind 20 kt. Seas 4 ft.
.SUN THROUGH MON...NW wind 30 kt. Seas 9 ft.
.TUE...NW wind 20 kt. Seas 7 ft.

$$

PKZ765-030015-
North and West of Nunivak Island-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 15 kt.
.TONIGHT...NW wind 15 kt.
.SAT...Variable wind 10 kt.
.SAT NIGHT...N wind 20 kt.
.SUN THROUGH MON...NW wind 25 kt.
.TUE...NW wind 20 kt.

$$

PKZ767-030015-
Saint Matthew Island Waters-
345 AM AKDT Fri May 2 2025

.TODAY...NW wind 20 kt. Seas in ice free waters 4 ft. Freezing
spray.
.TONIGHT...NW wind 15 kt E of Saint Matthew Island... NW 20 kt W
of Saint Matthew Island. Seas in ice free waters 5 ft. Freezing 
spray W of Saint Matthew Island.
.SAT...N wind 15 kt E of Saint Matthew Island...N 20 kt W of Saint
Matthew Island. Seas in ice free waters 5 ft. Freezing spray W of
Saint Matthew Island.
.SAT NIGHT...N wind 20 kt. Seas in ice free waters 5 ft.
.SUN THROUGH MON...NW wind 25 kt. Seas in ice free waters 4 ft.
.TUE...NW wind 15 kt. Seas in ice free waters 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
436 PM AKDT Wed Apr 30 2025

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

A low pressure system once over the northwestern Gulf of Alaska
has shifted north up the Cook Inlet inland. An occluded front
stretched across the northern Gulf Coast including Prince William
Sound communities will continue to see persistent rainfall this
evening. As the low pressure center shifts near Anchorage late
this afternoon, gusty winds will be drawn from the east out of
Turnagain Arm and potentially curl up into portions of the
Anchorage area. These gusty winds are expected to be short-lived
as the low center weakens tonight and shifts further north, with
winds winds weakening significantly and shifting northeasterly
after midnight. A similar gusty pattern is expected for the Palmer
area, with gusty winds coming out of the Knik River valley,
potentially lofting glacial silt and blowing dust this evening,
diminishing by midnight tonight. Gusty winds out of the Southeast
are also expected through the Copper River Valley including
Gulkana and Glennallen early tonight, diminishing similarly by
midnight tonight. Finally, strong easterly winds driven by a
barrier jet along the northern Gulf coast will diminish this
evening.

Starting tomorrow, a prolonged period of mild, unsettled weather
will continue, with calmer winds across the region, but prolonged
rainfall expected along the coast, and light showers possible for
inland locations through the remainder of the workweek. Areas at
elevation such as Thompson Pass may see periods of wet snowfall
along the roadway, however it is not expected to accumulate,
instead melt rapidly. Thursday evening, a low pressure system from
the northern Pacific is expected to swing up into the northern
Gulf, reinforcing the pattern in place. Anchorage, Western Kenai,
and Mat-Su valleys may see periods of light showers through the
remainder of the week, however downsloping off the mountains is
expected to mute much of the impacts observed.

-CL

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (through Saturday afternoon)...

A cold upper level system lingers over the southwest Mainland. The
convective nature of the rain is evident from the King Salmon
RADAR this afternoon, but no signs of lightning detected yet.
Model guidance continues to show weak instability from coastal
Bristol Bay northwestward into the Kuskokwim Delta through this
evening, and isolated lightning strike can not be ruled out. Small
hail and brief periods of heavy rain will be the main impacts.

The scenario for Thursday is nearly identical to today, however
the system overhead continues to weaken. Instability will be
mostly dependent on where gaps in the low level cloud cover
develop and allow for surface heating. In general, across the
southwest, expect partly to mostly cloudy conditions with
scattered rain showers and isolated thunderstorms. High
temperatures in the upper 40s to low 50s. On Friday a disturbance
and weak front from the Gulf of Alaska will bring rain to the
slopes of the Alaska/Aleutian range. The next system will be
transiting south of the Alaska Peninsula and largely not affecting
the mainland.

MTL

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (through Saturday
afternoon)...

Fairly quiet conditions across much of the Bering Sea as weak cold
advection produces snow showers over much of the area. Across much
of the Chain, temperatures are warm enough for rain showers. The
next system will again move west to east along or just south of
the Aleutians Thursday through Saturday. There will be some gale
force winds, mainly south of the central Aleutians. Adak and Atka
will likely see rain turning to snow as the system transits to the
south, becoming snow showers when the system passes on Saturday.

MTL

&&

.LONG TERM FORECAST (Days 4 through 7/Sunday through Wednesday)...

A rather active weather pattern sets up across the Southern
portions of Alaska through the forecast period. On the upper level
map, a closed low South of the Eastern Aleutians and Southern
Alaska Peninsula intensifies briefly as it moves into the Gulf of
Alaska late Monday into Tuesday. This low will then weaken as it
drifts out of the Gulf for Wednesday. A moderate ridge moving
across the Aleutians and Bering flattens out near the AKPEN by
Wednesday. Another closed low slips out of the Russian Far East
for Wednesday. A loose cluster of ECMWF and GFS deterministic
models work the major features through Tuesday before yielding to
ECMWF / GFS means for Wednesday. Considerable uncertainty rests in
the minor details throughout the forecast.

A well developed and intensifying surface low South of the AKPEN
gains its greatest strength passing Kodiak Island Tuesday. With
its front extending across the Gulf of Alaska, areas of moderate
rain spread across from the AKPEN and Kodiak Island to the
Southcentral coastal zones through Tuesday, diminishing Wednesday.
Some moderate snow is expected over the higher elevations of the
AKPEN and Southwest Alaska into Bristol Bay and Eastern Bering.
Heavy rain moves into Kodiak Island Sunday. A strong North Pacific
low and its front spreads moderate rain across the Western
Aleutians and Bering Tuesday, moving into the Central Aleutians
and Bering by midweek.

- Kutz

&&

.AVIATION...

PANC...VFR conditions are expected to persist. Strong
southeasterly winds are expected to develop by late afternoon
behind a low that will move across the Kenai Peninsula and into
the western Susitna Valley this afternoon and evening. With this
type of system, then onset of the southeasterly winds will
probably be fast and strong with gusts to 35 kt or higher possible for
an hour or two after the southeast winds start. After that they
should be more typical southeast winds with gusts closer to 25 kt.
These winds should then rapidly decrease and turn back to the
north around, or shortly after midnight tonight.

&&