Gale Warning 910, NWS Anchorage, AK

974 
FZAK52 PAFC 062357
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
257 PM AKST Fri Dec 6 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.

PKZ199-071245-
257 PM AKST Fri Dec 6 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 982 mb low 80 nm S of Amchitka merges with a 955 mb N Pac low 
Saturday afternoon. This low moves to 50 nm S of Cape Sarichef 
Sunday afternoon. Its front moves across the Aleutians into the AK
Peninsula Sunday afternoon.

$$

PKZ750-071245-
Sitkinak to Castle Cape out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.SAT...Variable wind 10 kt. Seas 4 ft.
.SAT NIGHT...SE wind 25 kt becoming E 35 kt after midnight. Seas
5 ft building to 10 ft after midnight. Rain.
.SUN...SE wind 35 kt. Seas 15 ft.
.SUN NIGHT...SE wind 30 kt. Seas 16 ft.
.MON THROUGH TUE...E wind 30 kt. Seas 13 ft.
.WED...W wind 25 kt. Seas 11 ft.

$$

PKZ751-071245-
Sitkinak to Castle Cape from 15 to 100 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas 9 ft.
.SAT...S wind 20 kt. Seas 7 ft.
.SAT NIGHT...SE wind 35 kt. Seas 9 ft building to 14 ft after
midnight. Rain.
.SUN...SE wind 35 kt. Seas 24 ft.
.SUN NIGHT...SE wind 30 kt. Seas 23 ft.
.MON THROUGH TUE...S wind 30 kt. Seas 19 ft.
.WED...W wind 30 kt. Seas 16 ft.

$$

PKZ752-071245-
Castle Cape to Cape Tolstoi out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...NW wind 15 kt. Seas 5 ft.
.SAT...Variable wind 10 kt becoming E 20 kt in the afternoon. Seas
5 ft.
.SAT NIGHT...E wind 35 kt. Seas 7 ft building to 13 ft after
midnight. Rain.
.SUN...E wind 35 kt. Seas 18 ft.
.SUN NIGHT...SE wind 30 kt. Seas 17 ft.
.MON...SE wind 30 kt. Seas 12 ft.
.TUE...NW wind 20 kt. Seas 13 ft.
.WED...W wind 25 kt. Seas 9 ft.

$$

PKZ753-071245-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 8 ft.
.SAT...S wind 15 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
Rain.
.SAT NIGHT...E wind 35 kt. Seas 16 ft. Rain.
.SUN...SE wind 35 kt. Seas 28 ft.
.SUN NIGHT...S wind 30 kt. Seas 23 ft.
.MON...SE wind 30 kt. Seas 17 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 17 ft.

$$

PKZ754-071245-
Cape Tolstoi to Cape Sarichef out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 3 ft.
.SAT...SE wind 20 kt becoming E 30 kt in the afternoon. Seas 6 ft.
Rain.
.SAT NIGHT...E wind 40 kt. Seas 12 ft. Rain.
.SUN...E wind 35 kt. Seas 20 ft.
.SUN NIGHT...S wind 30 kt. Seas 15 ft.
.MON...S wind 25 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 11 ft.
.WED...W wind 25 kt. Seas 10 ft.

$$

PKZ755-071245-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 6 ft.
.SAT...SE wind 25 kt becoming E 35 kt in the afternoon. Seas 9 ft.
Rain.
.SAT NIGHT...E wind 40 kt. Seas 18 ft. Rain.
.SUN...SE wind 35 kt. Seas 28 ft.
.SUN NIGHT...S wind 30 kt. Seas 19 ft.
.MON...S wind 25 kt. Seas 16 ft.
.TUE THROUGH WED...W wind 30 kt. Seas 16 ft.

$$

PKZ756-071245-
Port Heiden to Nelson Lagoon out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 2 ft.
.SAT...Variable wind 10 kt becoming E 20 kt in the afternoon. Seas
2 ft.
.SAT NIGHT...E wind 30 kt. Seas 6 ft.
.SUN AND SUN NIGHT...SE wind 30 kt. Seas 7 ft.
.MON...SE wind 30 kt. Seas 4 ft.
.TUE...N wind 20 kt. Seas 7 ft.
.WED...W wind 25 kt. Seas 10 ft.

$$

PKZ757-071245-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 3 ft.
.SAT...Variable wind 10 kt becoming SE 20 kt in the afternoon.
Seas 3 ft.
.SAT NIGHT...E wind 35 kt. Seas 5 ft building to 9 ft after
midnight.
.SUN AND SUN NIGHT...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 30 kt. Seas 8 ft.
.TUE...NE wind 25 kt. Seas 8 ft.
.WED...W wind 25 kt. Seas 11 ft.

$$

PKZ758-071245-
Nelson Lagoon to Cape Sarichef out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 3 ft.
.SAT...E wind 15 kt increasing to 25 kt in the afternoon. Seas 3
ft.
.SAT NIGHT...E wind 30 kt. Seas 7 ft. Rain.
.SUN...E wind 30 kt. Seas 9 ft.
.SUN NIGHT...SE wind 25 kt. Seas 7 ft.
.MON...S wind 25 kt. Seas 6 ft.
.TUE...NW wind 25 kt. Seas 8 ft.
.WED...W wind 25 kt. Seas 11 ft.

$$

PKZ759-071245-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 15 kt. Seas 4 ft.
.SAT...SE wind 15 kt becoming E 25 kt in the afternoon. Seas 5 ft.
.SAT NIGHT...E wind 35 kt. Seas 10 ft. Rain and snow.
.SUN...E wind 35 kt. Seas 12 ft.
.SUN NIGHT...SE wind 30 kt. Seas 11 ft.
.MON...S wind 30 kt. Seas 9 ft.
.TUE...NW wind 25 kt. Seas 8 ft.
.WED...W wind 25 kt. Seas 12 ft.

$$

PKZ770-071245-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 4 ft.
.SAT...NE wind 30 kt. Seas 6 ft. Rain.
.SAT NIGHT...NE wind 35 kt. Seas 9 ft. Rain.
.SUN...NE wind 25 kt. Seas 9 ft.
.SUN NIGHT...W wind 30 kt. Seas 10 ft.
.MON...W wind 30 kt. Seas 10 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...SW wind 30 kt. Seas 11 ft.

$$

PKZ772-071245-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming SE 15 kt after midnight.
Seas 4 ft.
.SAT...NE wind 30 kt. Seas 7 ft. Rain.
.SAT NIGHT...NE wind 35 kt. Seas 11 ft. Rain and snow.
.SUN...NE wind 30 kt. Seas 12 ft.
.SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...SW wind 30 kt. Seas 11 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...SW wind 25 kt. Seas 11 ft.

$$

PKZ771-071245-
Unalaska Bay-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT...E wind 20 kt increasing to 30 kt in the afternoon. Seas 4
ft. Rain.
.SAT NIGHT...NE wind 30 kt. Seas 7 ft. Rain.
.SUN...NE wind 20 kt. Seas 7 ft.
.SUN NIGHT...W wind 25 kt. Seas 4 ft.
.MON...SW wind 30 kt. Seas 5 ft.
.TUE...W wind 15 kt. Seas 3 ft.
.WED...SW wind 20 kt. Seas 3 ft.

$$

PKZ773-071245-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...Variable wind 10 kt becoming SE 20 kt after midnight.
Seas 4 ft.
.SAT...NE wind 35 kt. Seas 6 ft building to 11 ft in the
afternoon. Rain.
.SAT NIGHT...NE wind 40 kt. Seas 16 ft. Rain.
.SUN...N wind 30 kt. Seas 18 ft.
.SUN NIGHT...W wind 30 kt. Seas 14 ft.
.MON THROUGH TUE...NW wind 25 kt. Seas 13 ft.
.WED...SW wind 30 kt. Seas 11 ft.

$$

PKZ774-071245-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...S wind 15 kt becoming SE 25 kt after midnight. Seas 5
ft.
.SAT...E wind 35 kt. Seas 8 ft building to 14 ft in the afternoon.
Rain.
.SAT NIGHT...NE wind 40 kt diminishing to 30 kt after midnight.
Seas 18 ft. Rain.
.SUN...N wind 30 kt. Seas 22 ft.
.SUN NIGHT...W wind 30 kt. Seas 15 ft.
.MON...W wind 30 kt. Seas 15 ft.
.TUE...NW wind 30 kt. Seas 16 ft.
.WED...SW wind 30 kt. Seas 14 ft.

$$

PKZ775-071245-
Nikolski to Seguam Bering Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 15 kt increasing to 25 kt after midnight. Seas
6 ft.
.SAT...NE wind 35 kt. Seas 10 ft. Rain.
.SAT NIGHT...NE wind 35 kt. Seas 14 ft. Rain and snow.
.SUN AND SUN NIGHT...NW wind 35 kt. Seas 15 ft.
.MON THROUGH TUE...W wind 25 kt. Seas 11 ft.
.WED...SW wind 30 kt. Seas 10 ft.

$$

PKZ776-071245-
Nikolski to Seguam Bering Side from 15 to 85 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas 5 ft.
.SAT...NE wind 30 kt. Seas 9 ft.
.SAT NIGHT...NE wind 35 kt. Seas 13 ft. Rain and snow.
.SUN AND SUN NIGHT...NW wind 35 kt. Seas 15 ft.
.MON...W wind 25 kt. Seas 12 ft.
.TUE...W wind 25 kt. Seas 8 ft.
.WED...SW wind 30 kt. Seas 10 ft.

$$

PKZ777-071245-
Nikolski to Seguam Pacfic Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 15 kt increasing to 25 kt after midnight. Seas
6 ft.
.SAT...NE wind 35 kt. Seas 12 ft. Rain.
.SAT NIGHT...N wind 35 kt. Seas 16 ft. Rain.
.SUN AND SUN NIGHT...NW wind 35 kt. Seas 16 ft.
.MON THROUGH TUE...W wind 25 kt. Seas 13 ft.
.WED...SW wind 30 kt. Seas 12 ft.

$$

PKZ778-071245-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 8 ft. Rain.
.SAT...NE wind 40 kt. Seas 17 ft. Rain.
.SAT NIGHT...NE wind 35 kt. Seas 18 ft. Rain.
.SUN...NW wind 40 kt. Seas 17 ft.
.SUN NIGHT...NW wind 35 kt. Seas 17 ft.
.MON...SW wind 25 kt. Seas 15 ft.
.TUE THROUGH WED...SW wind 30 kt. Seas 15 ft.

$$

PKZ780-071245-
Seguam to Adak Bering Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 6 ft.
.SAT...NE wind 30 kt. Seas 8 ft.
.SAT NIGHT...N wind 30 kt. Seas 11 ft.
.SUN AND SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...N wind 15 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 7 ft.

$$

PKZ781-071245-
Seguam to Adak Bering Side from 15 to 85 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 7 ft.
.SAT...NE wind 25 kt. Seas 8 ft.
.SAT NIGHT...NE wind 30 kt. Seas 11 ft.
.SUN AND SUN NIGHT...NW wind 30 kt. Seas 14 ft.
.MON...N wind 15 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 9 ft.

$$

PKZ782-071245-
Seguam to Adak Pacific Side out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 10 ft. Rain.
.SAT...NE wind 30 kt. Seas 10 ft. Rain.
.SAT NIGHT...N wind 30 kt. Seas 11 ft. Rain and snow.
.SUN...NW wind 35 kt. Seas 11 ft.
.SUN NIGHT...NW wind 30 kt. Seas 10 ft.
.MON...N wind 20 kt. Seas 11 ft.
.TUE THROUGH WED...SW wind 25 kt. Seas 12 ft.

$$

PKZ783-071245-
Seguam to Adak Pacific Side from 15 to 75 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 12 ft. Rain showers.
.SAT...NE wind 35 kt. Seas 14 ft. Rain.
.SAT NIGHT...N wind 35 kt. Seas 16 ft. Rain.
.SUN...NW wind 35 kt. Seas 16 ft.
.SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...SE wind 25 kt. Seas 13 ft.
.TUE THROUGH WED...SW wind 30 kt. Seas 14 ft.

$$

PKZ784-071245-
Adak to Kiska Bering Side-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...E wind 30 kt. Seas 9 ft.
.SAT...NE wind 20 kt. Seas 8 ft.
.SAT NIGHT...NE wind 15 kt. Seas 7 ft.
.SUN...N wind 15 kt. Seas 8 ft.
.SUN NIGHT...W wind 15 kt. Seas 10 ft.
.MON...NE wind 20 kt. Seas 10 ft.
.TUE...SW wind 25 kt. Seas 8 ft.
.WED...SW wind 30 kt. Seas 12 ft.

$$

PKZ785-071245-
Adak to Kiska Pacific Side-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 11 ft. Rain.
.SAT...NE wind 20 kt. Seas 11 ft.
.SAT NIGHT...NE wind 15 kt. Seas 8 ft.
.SUN AND SUN NIGHT...W wind 20 kt. Seas 12 ft.
.MON...NE wind 30 kt. Seas 12 ft.
.TUE THROUGH WED...S wind 30 kt. Seas 15 ft.

$$

PKZ786-071245-
Kiska to Attu Bering Side-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas 10 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SAT NIGHT...SE wind 20 kt. Seas 9 ft.
.SUN...SE wind 20 kt. Seas 12 ft.
.SUN NIGHT...SW wind 15 kt. Seas 13 ft.
.MON...E wind 15 kt. Seas 12 ft.
.TUE THROUGH WED...S wind 25 kt. Seas 13 ft.

$$

PKZ787-071245-
Kiska to Attu Pacific Side-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...N wind 25 kt. Seas 13 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SAT NIGHT...SE wind 20 kt. Seas 9 ft.
.SUN...SW wind 20 kt. Seas 14 ft.
.SUN NIGHT...S wind 20 kt. Seas 15 ft.
.MON...SE wind 20 kt. Seas 12 ft.
.TUE THROUGH WED...S wind 30 kt. Seas 17 ft.

$$

PKZ766-071245-
Pribilof Islands Nearshore Waters-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...Variable wind 10 kt. Seas 5 ft.
.SAT...NE wind 15 kt. Seas 4 ft.
.SAT NIGHT...NE wind 30 kt. Seas 5 ft building to 8 ft after
midnight.
.SUN...NE wind 35 kt. Seas 12 ft.
.SUN NIGHT...N wind 30 kt. Seas 12 ft.
.MON...SW wind 20 kt. Seas 10 ft.
.TUE THROUGH WED...SW wind 15 kt. Seas 8 ft.

$$

PKZ760-071245-
Bristol Bay greater than 15 NM-
257 PM AKST Fri Dec 6 2024

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 10 kt. Seas 2 ft.
.SAT...SW wind 10 kt becoming SE in the afternoon. Seas 2 ft.
.SAT NIGHT...E wind 25 kt increasing to 35 kt after midnight. Seas
6 ft. Rain and snow.
.SUN...E wind 40 kt. Seas 10 ft.
.SUN NIGHT...E wind 35 kt. Seas 9 ft.
.MON...SE wind 30 kt. Seas 8 ft.
.TUE...NE wind 25 kt. Seas 7 ft.
.WED...W wind 25 kt. Seas 8 ft.

$$

PKZ761-071245-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...W wind 10 kt. Seas 2 ft. Patchy freezing fog.
.SAT...S wind 10 kt becoming SE in the afternoon. Seas 1 foot.
Patchy freezing fog.
.SAT NIGHT...E wind 20 kt increasing to 30 kt after midnight. Seas
4 ft.
.SUN...E wind 35 kt. Seas 6 ft.
.SUN NIGHT...SE wind 30 kt. Seas 5 ft.
.MON...SE wind 30 kt. Seas 4 ft.
.TUE...NE wind 25 kt. Seas 5 ft.
.WED...W wind 25 kt. Seas 6 ft.

$$

PKZ762-071245-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...W wind 10 kt. Seas in ice free waters 1 foot. Patchy
freezing fog.
.SAT...S wind 10 kt. Seas in ice free waters 1 foot. Patchy
freezing fog.
.SAT NIGHT...E wind 30 kt. Seas in ice free waters 4 ft. Rain.
Freezing spray.
.SUN AND SUN NIGHT...E wind 35 kt. Seas in ice free waters 6 ft.
.MON...SE wind 30 kt. Seas in ice free waters 5 ft.
.TUE...NE wind 25 kt. Seas in ice free waters 4 ft.
.WED...W wind 20 kt. Seas in ice free waters 3 ft.

$$

PKZ763-071245-
Kuskokwim Delta and Etolin Strait out to 15 NM-
257 PM AKST Fri Dec 6 2024

...BRISK WIND ADVISORY SATURDAY NIGHT...

.TONIGHT...S wind 10 kt.
.SAT...S wind 10 kt increasing to 15 kt in the afternoon.
.SAT NIGHT...E wind 20 kt increasing to 30 kt after midnight.
.SUN AND SUN NIGHT...E wind 35 kt.
.MON...SE wind 35 kt.
.TUE...NE wind 20 kt.
.WED...W wind 20 kt.

$$

PKZ764-071245-
Kuskokwim Delta from 15 to 80 NM-
257 PM AKST Fri Dec 6 2024

...SMALL CRAFT ADVISORY SATURDAY NIGHT...

.TONIGHT...SW wind 10 kt increasing to 15 kt after midnight. Seas
3 ft.
.SAT...SW wind 10 kt becoming S in the afternoon. Seas 3 ft.
.SAT NIGHT...E wind 30 kt. Seas 4 ft building to 8 ft after
midnight. Rain and snow.
.SUN AND SUN NIGHT...E wind 35 kt. Seas 12 ft.
.MON...SE wind 35 kt. Seas 10 ft.
.TUE...NE wind 20 kt. Seas 8 ft.
.WED...W wind 25 kt. Seas 9 ft.

$$

PKZ765-071245-
North and West of Nunivak Island-
257 PM AKST Fri Dec 6 2024

.TONIGHT...Variable wind 10 kt. Seas in ice free waters 5 ft.
.SAT...Variable wind 10 kt. Seas in ice free waters 4 ft.
.SAT NIGHT...E wind 15 kt. Seas in ice free waters 3 ft.
.SUN AND SUN NIGHT...NE wind 30 kt. Seas in ice free waters 7 ft.
.MON...E wind 30 kt. Seas in ice free waters 7 ft.
.TUE...E wind 25 kt. Seas in ice free waters 7 ft.
.WED...W wind 15 kt. Seas in ice free waters 6 ft.

$$

PKZ767-071245-
Saint Matthew Island Waters-
257 PM AKST Fri Dec 6 2024

.TONIGHT...N wind 20 kt. Seas 7 ft. Freezing spray.
.SAT...N wind 20 kt. Seas 7 ft. Freezing spray.
.SAT NIGHT...N wind 15 kt. Seas 6 ft.
.SUN...NE wind 30 kt. Seas 6 ft.
.SUN NIGHT...NE wind 30 kt. Seas 10 ft.
.MON...N wind 30 kt. Seas 13 ft.
.TUE...SW wind 25 kt. Seas 11 ft.
.WED...SW wind 15 kt. Seas 8 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
433 PM AKST Thu Dec 5 2024

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

Key Points:

* Temperatures are expected to dip at or below freezing after
  sunset and tonight. Any water on untreated surfaces will
  refreeze.

* Another round of freezing rain and drizzle is possible after
  midnight tonight through Friday morning.

* Winter Weather Advisory has been extended for Anchorage,
  Matanuska, and Susitna Valley through noon Friday.

* Patchy fog may develop where skies clear along the Kenai
  Peninsula, Anchorage, and the Matanuska and Susitna Valleys
  tonight and Friday night.

Discussion:

Many areas reported freezing rain today across Southcentral.
Temperatures this afternoon rose into mid to upper 30s in many
locations and the Copper River Basin through Valdez was allowed to
expire. However, temperatures will cool again tonight and any
water on untreated surfaces will refreeze. A sliver of clearing
skies on satellite has allowed for fog to develop in portions of
the Kenai Peninsula. Fog is expected to be patchy and brief as the
slot moves north, fog develops elsewhere, and the increasing cloud
cover with the next system improves visibility.

However, the next deepening surface low over the North Pacific
pushes northward into the Gulf for Friday. This low will drive a
front northward bringing gusty gale force winds to the coasts and
usual gap regions as well as another burst of precipitation. This
low will mainly affect Kodiak Island and Prince William Sound as
Anchorage and the Kenai Peninsula will experience downsloping.
This precipitation will be mostly in the form of rainfall as the
warm air mass remains in place. However, yet again, with
temperatures along the lee of the coastal mountains cooling back
to around freezing following today's event, any precipitation that
does spill over the mountains Friday morning would likely fall as
a period of light freezing rain. Freezing rain potential will be
more likely for the Anchorage area, especially south and west
Anchorage. The potential also cannot be ruled out for the
Matanuska Valley as well. This and the temperatures dipping below
freezing tonight has led to the decision of extending the
advisories through noon Friday.

Looking ahead, a shortwave ridge could bring another round of
patchy fog for Saturday, though confidence at this time is low.
Yet another system is scheduled toward the end of the weekend,
reaching Kodiak on Sunday morning. Gale force winds are expected
along the front and ample moisture looks to be associated with
this system. Again, warm southeasterly air looks to advect into
Southcentral. Timing of its passage is a little uncertain still,
though Sunday into Monday is the likely timeframe. Midlevel
temperatures also vary and precipitation type challenges seem
moderately likely. Please stay winter weather prepared and check
for updates to the forecast.

-TM/Rux

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

Though the low remains stationary off of the Kuskokwim Delta
coastline, the main field of moisture has pushed northward and a
bit of dry air has moved in. This has allowed the main threat of
mixed precipitation including freezing rain to subside. Despite
this, there remains a chance for brief showers across the
Southwest mainland through Saturday. As for the Bering, there is a
low over the Shemya region which is allowing for small craft
winds and precipitation in the western Aleutians. This low will
begin to dissipate by Saturday. Back to the mainland, ridging
builds in on Saturday, which will allow for calmer and drier
conditions. This ridging will be brief and is quickly pushed out
Sunday afternoon by a North Pacific low that will lift into the
Bering.

This North Pacific low will send bands of precipitation across
the Southwest. The Bering could see a brief period of mixed
rain/snow before warm air advection occurs and transitions the
precipitation fully to rain. Gale force winds will accompany this
low and will set up on the southern coasts of the Aleutians and
the Alaska Peninsula. On the mainland, another round of freezing
rain and/or snow mixed with freezing rain could occur in Bristol
Bay. This will be short lived as strong downsloping southeasterly
winds will quickly warm the region and transition the
precipitation to rain. The King Salmon area in particular will
see chances for precipitation heavily diminish with the southeast
winds. Iliamna in particular is showing very strong winds of over
70mph+ at 950mb. In the Kuskokwim Delta, mainly snow is expected,
but a small possibility of snow mixed with freezing rain is
possible in the Bethel region. However, this is highly dependent
on how warm temperatures get and how much downsloping the area
receives once the winds turn southeasterly.

A troughy pattern is expected in the future with a few more lows
looming west of the Bering Sea after Monday. These will likely
bring more gusty winds and precipitation in the future.

-JAR

&&

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

An extended, negatively tilted upper trough situates itself
across the Bering Sea and Aleutians, and over the Gulf. This
feature deepens as it moves eastward across western AK. The trough
and embedded shortwaves will support a parade of deep frontal
lows to track just south of the Aleutians. A stout southerly flow
will lead to a short lived warming trend into the region as these
lows progress eastward. The aforementioned trough and surface lows
will have strong forcing to support mixed p-types across Eastern
slopes of the Alaska Range, Eastern Kenai Peninsula and across
Prince William Sound to the Canadian border. Rain (which could be
locally heavy at times) is more likely towards the coast, while
frozen p-types will be felt inland. The other major parameter is
wind, which will be quite gusty to gale force through the period
as model guidance notes tight pressure gradients from the synoptic
setup. Troughing begins to flatten towards the latter part of the
period.

&&.AVIATION...

PANC...VFR conditions prevail this afternoon in between systems.
Clearing skies have allowed some low stratus and fog to
develop across portions of the Cook Inlet, but current thinking is
that this will remain out of PANC. Cloud cover will begin to
spread across the area again this evening into the overnight as
the next trough lifts north. A brief period of light freezing rain
is possible again late tonight into tomorrow morning, but
confidence remains quite low. Should any precip fall, it is likely
to be light and in much shorter duration than today (Thursday).
Afterwards, VFR will then prevail for the remainder of Friday in
wake of the systems. Winds will remain light and out of the north.

&&