Alert archive / Alaska / Small Craft Advisories in 2020

Small Craft Advisory 1018, NWS Anchorage, AK

December 29, 2020

NWS Anchorage, AK issued this small craft advisory at Dec 29, 2020, 4:28 AM AKST. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued
Dec 29, 2020, 4:28 AM AKST (13:28 UTC)
Expired
Dec 31, 2020, 4:23 AM AKST
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

603 
FZAK52 PAFC 291328
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
428 AM AKST Tue Dec 29 2020

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.

PKZ199-300200-
428 AM AKST Tue Dec 29 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 964 mb low 250 nm northeast of Attu slowly departs over the far
western Bering through Wed. A 941 mb low moves 300 nm southwest of
Attu Wed evening, with its front extending across the western 
Aleutians.

$$

PKZ150-300200-
South of the AK Peninsula Sitkinak to Castle Cape-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE wind 30 kt becoming SW in the afternoon. Seas 16 ft. 
Rain showers.
.TONIGHT...SW wind 30 kt diminishing to 20 kt after midnight. Seas
16 ft subsiding to 13 ft after midnight.
.WED...SW wind 20 kt. Seas 12 ft.
.WED NIGHT...E wind 35 kt. Seas 13 ft.
.THU...E wind 35 kt. Seas 25 ft.
.FRI...E wind 30 kt. Seas 18 ft.
.SAT...W wind 25 kt. Seas 18 ft.

$$

PKZ155-300200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Seas 16 ft.
.TONIGHT...SW wind 20 kt. Seas 15 ft.
.WED...SW wind 15 kt becoming SE in the afternoon. Seas 14 ft.
.WED NIGHT...E wind 30 kt. Seas 15 ft.
.THU...E wind 35 kt. Seas 21 ft.
.FRI...W wind 30 kt. Seas 22 ft.
.SAT...W wind 25 kt. Seas 20 ft.

$$

PKZ160-300200-
Bristol Bay-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E wind 30 kt decreasing to 20 kt by afternoon. Seas in ice 
free waters 7 ft. Rain and snow showers.
.TONIGHT...SW wind 20 kt. Seas in ice free waters 5 ft.
.WED...S wind 15 kt becoming SE in the afternoon. Seas in ice free
waters 4 ft.
.WED NIGHT...E wind 20 kt. Seas in ice free waters 4 ft.
.THU THROUGH FRI...NE wind 35 kt. Seas in ice free waters 8 ft.
.SAT...N wind 15 kt. Seas in ice free waters 6 ft.

$$

PKZ165-300200-
Port Heiden to Cape Sarichef-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY TODAY...

.TODAY...SW wind 20 kt except SE 25 kt Port Moller E in the morning.
Seas 7 ft.
.TONIGHT...S wind 20 kt. Seas 6 ft.
.WED...SW wind 15 kt in the morning becoming variable 10 kt. Seas
6 ft.
.WED NIGHT...E wind 20 kt. Seas 6 ft.
.THU...E wind 45 kt. Seas 13 ft.
.FRI...SW wind 40 kt. Seas 14 ft.
.SAT...SW wind 15 kt. Seas 12 ft.

$$

PKZ170-300200-
Cape Sarichef to Nikolski Bering Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 25 kt. Seas 9 ft.
.TONIGHT...SW wind 20 kt. Seas 8 ft.
.WED...SW wind 15 kt in the morning becoming variable 10 kt. Seas
8 ft.
.WED NIGHT...NE wind 15 kt. Seas 7 ft.
.THU...SE wind 50 kt. Seas 18 ft.
.FRI...SW wind 30 kt. Seas 18 ft.
.SAT...SW wind 25 kt. Seas 16 ft.

$$

PKZ171-300200-
Unalaska Bay-
428 AM AKST Tue Dec 29 2020

.TODAY...S wind 10 kt becoming 20 kt by afternoon. Seas 3 ft.
.TONIGHT...SW wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt becoming NE 10 kt in the
afternoon. Seas 3 ft.
.WED NIGHT...NE wind 15 kt. Seas 5 ft.
.THU...SE wind 40 kt. Seas 6 ft.
.FRI...SW wind 30 kt. Seas 5 ft.
.SAT...SW wind 15 kt. Seas 2 ft.

$$

PKZ172-300200-
Cape Sarichef to Nikolski Pacific Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...S wind 25 kt. Seas 18 ft.
.TONIGHT...SW wind 25 kt. Seas 17 ft.
.WED...NE wind 15 kt. Seas 13 ft.
.WED NIGHT...NE wind 25 kt. Seas 14 ft.
.THU...SE wind 45 kt. Seas 20 ft.
.FRI...SW wind 35 kt. Seas 25 ft.
.SAT...SW wind 30 kt. Seas 24 ft.

$$

PKZ173-300200-
Nikolski to Seguam Island Bering Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 25 kt. Seas 11 ft.
.TONIGHT...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.WED NIGHT...S wind 30 kt. Seas 7 ft.
.THU...S wind 65 kt. Seas 30 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 20 ft.

$$

PKZ174-300200-
Nikolski to Seguam Island Pacific Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 21 ft. Rain showers.
.TONIGHT...SW wind 25 kt decreasing to 15 kt after midnight. Seas 18
ft.
.WED...W wind 15 kt becoming N 15 kt by afternoon. Seas 12 ft.
.WED NIGHT...NE wind 25 kt. Seas 12 ft.
.THU...S wind 60 kt. Seas 32 ft.
.FRI...SW wind 35 kt. Seas 32 ft.
.SAT...SW wind 30 kt. Seas 30 ft.

$$

PKZ175-300200-
Seguam Island to Adak Bering Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 25 kt. Seas 11 ft.
.TONIGHT...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.WED NIGHT...S wind 55 kt. Seas 25 ft.
.THU...SW wind 70 kt. Seas 29 ft.
.FRI...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 30 kt. Seas 19 ft.

$$

PKZ176-300200-
Seguam Island to Adak Pacific Side-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...W wind 30 kt. Seas 21 ft.
.TONIGHT...SW wind 25 kt. Seas 16 ft.
.WED...W wind 20 kt. Seas 12 ft.
.WED NIGHT...S wind 55 kt. Seas 25 ft.
.THU...SW wind 65 kt. Seas 40 ft.
.FRI...SW wind 40 kt. Seas 37 ft.
.SAT...SW wind 30 kt. Seas 32 ft.

$$

PKZ177-300200-
Adak to Kiska-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SW wind 30 kt. Seas 19 ft. Snow showers.
.TONIGHT...SW wind 25 kt. Seas 14 ft.
.WED...SW wind 30 kt. Seas 15 ft.
.WED NIGHT...SE wind 65 kt. Seas 30 ft.
.THU...SW wind 65 kt. Seas 47 ft.
.FRI...SW wind 45 kt. Seas 41 ft.
.SAT...SW wind 35 kt. Seas 31 ft.

$$

PKZ178-300200-
Kiska to Attu-
428 AM AKST Tue Dec 29 2020

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...W wind 30 kt. Seas 17 ft.
.TONIGHT...SW wind 35 kt. Seas 15 ft. Snow showers.
.WED...SW wind 40 kt diminishing to 30 kt in the afternoon. Seas
18 ft.
.WED NIGHT...SE wind 65 kt. Seas 35 ft.
.THU...SW wind 70 kt. Seas 51 ft.
.FRI...SW wind 65 kt. Seas 43 ft.
.SAT...SW wind 40 kt. Seas 31 ft.

$$

PKZ179-300200-
Pribilof Islands Near Shore Waters-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...SE wind 25 kt decreasing to 20 kt by afternoon. Seas 13 ft
subsiding to 10 ft by afternoon.
.TONIGHT...S wind 20 kt. Seas 9 ft.
.WED...S wind 20 kt. Seas 9 ft.
.WED NIGHT...S wind 15 kt. Seas 9 ft.
.THU...SE wind 45 kt. Seas 23 ft.
.FRI...SW wind 20 kt. Seas 19 ft.
.SAT...Variable wind 10 kt. Seas 15 ft.

$$

PKZ180-300200-
Kuskokwim Delta and Etolin Strait-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY TODAY...

.TODAY...E wind 30 kt. Seas in ice free waters 9 ft. Rain and snow
showers.
.TONIGHT...SW wind 20 kt. Seas in ice free waters 7 ft.
.WED...S wind 15 kt. Seas in ice free waters 5 ft.
.WED NIGHT...SE wind 20 kt. Seas in ice free waters 6 ft.
.THU THROUGH FRI...E wind 40 kt. Seas in ice free waters 14 ft.
.SAT...N wind 15 kt. Seas in ice free waters 9 ft.

$$

PKZ181-300200-
North and West of Nunivak Island-
428 AM AKST Tue Dec 29 2020

...BRISK WIND ADVISORY TODAY...

.TODAY...E wind 25 kt.
.TONIGHT...SE wind 20 kt.
.WED...S wind 15 kt.
.WED NIGHT...S wind 20 kt.
.THU THROUGH FRI...E wind 40 kt.
.SAT...NE wind 20 kt.

$$

PKZ185-300200-
Saint Matthew Island Waters-
428 AM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt. Seas 14 ft.
.TONIGHT...E of Saint Matthew Island, E wind 20 kt. W of Saint
Matthew Island, E wind 30 kt diminishing to 20 kt after midnight.
Seas 13 ft. Rain showers.
.WED...SE wind 15 kt becoming SW by afternoon. Seas 8 ft.
.WED NIGHT...S wind 25 kt. Seas 9 ft.
.THU...SE wind 50 kt. Seas 29 ft.
.FRI...E wind 45 kt. Seas 28 ft.
.SAT...NE wind 35 kt. Seas 22 ft.

$$
5 follow-up statements
765 
FZAK52 PAFC 300006
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
306 PM AKST Tue Dec 29 2020

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.

PKZ199-301330-
306 PM AKST Tue Dec 29 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 966 mb low 200 nm north of Attu slowly departs over the 
far western Bering through Wed. A strong North Pacific low 
moves to 170 nm southwest of Attu Wed night at 932 mb then 
to 100 nm north of Shemya at 928 mb by Thu evening.

$$

PKZ150-301330-
South of the AK Peninsula Sitkinak to Castle Cape-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...SW wind 30 kt. Seas 16 ft. Rain.
.WED...SW wind 20 kt. Seas 13 ft.
.WED NIGHT...E wind 20 kt increasing to 30 kt after midnight. 
Seas 10 ft.
.THU AND THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...E wind 40 kt. Seas 18 ft.
.SAT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 20 kt. Seas 14 ft.

$$

PKZ155-301330-
South of the AK Peninsula Castle Cape to Cape Sarichef-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...SW wind 20 kt. Seas 15 ft.
.WED...Variable wind 10 kt becoming E 15 kt in the afternoon. 
Seas 13 ft.
.WED NIGHT...E wind 20 kt becoming NE 30 kt after midnight. 
Seas 11 ft.
.THU...E wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft.
.FRI THROUGH SAT...W wind 35 kt. Seas 21 ft.
.SUN...W wind 25 kt. Seas 15 ft.

$$

PKZ160-301330-
Bristol Bay-
306 PM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...E wind 25 kt becoming W after midnight. Seas 5 ft
building to 8 ft after midnight. Rain and snow.
.WED...W wind 25 kt diminishing to 15 kt in the afternoon. 
Seas 7 ft. Snow.
.WED NIGHT...W wind 15 kt becoming NE after midnight. Seas 4 ft.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 7 ft.
.FRI...NE wind 35 kt. Seas 7 ft.
.SAT...N wind 20 kt. Seas 6 ft.
.SUN...NE wind 15 kt. Seas 5 ft.

$$

PKZ165-301330-
Port Heiden to Cape Sarichef-
306 PM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 15 kt except W 25 kt from Port Moller E. 
Seas 6 ft.
.WED...SW wind 20 kt in the morning becoming variable 10 kt. 
Seas 6 ft.
.WED NIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 30 kt. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 11 ft.
.FRI...W wind 35 kt. Seas 14 ft.
.SAT...W wind 25 kt. Seas 12 ft.
.SUN...NW wind 15 kt. Seas 9 ft.

$$

PKZ170-301330-
Cape Sarichef to Nikolski Bering Side-
306 PM AKST Tue Dec 29 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SW wind 20 kt. Seas 8 ft.
.WED...W wind 15 kt. Seas 7 ft.
.WED NIGHT...N wind 20 kt becoming E 15 kt after midnight. 
Seas 7 ft.
.THU...SE wind 50 kt. Seas 13 ft.
.THU NIGHT...S wind 45 kt. Seas 15 ft.
.FRI THROUGH SAT...SW wind 25 kt. Seas 17 ft.
.SUN...W wind 20 kt. Seas 11 ft.

$$

PKZ171-301330-
Unalaska Bay-
306 PM AKST Tue Dec 29 2020

.TONIGHT...S wind 15 kt. Seas 2 ft.
.WED...N wind 10 kt. Seas 3 ft.
.WED NIGHT...N wind 15 kt becoming E 10 kt after midnight. 
Seas 5 ft subsiding to 2 ft after midnight.
.THU...SE wind 40 kt. Seas 6 ft.
.THU NIGHT...S wind 45 kt. Seas 7 ft.
.FRI...SW wind 25 kt. Seas 4 ft.
.SAT...SW wind 10 kt. Seas 2 ft.
.SUN...W wind 20 kt. Seas 3 ft.

$$

PKZ172-301330-
Cape Sarichef to Nikolski Pacific Side-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...W wind 25 kt diminishing to 15 kt after midnight. 
Seas 17 ft.
.WED...NE wind 10 kt increasing to 20 kt in the afternoon. 
Seas 13 ft.
.WED NIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 50 kt. Seas 17 ft.
.THU NIGHT...SW wind 45 kt. Seas 19 ft.
.FRI THROUGH SAT...W wind 35 kt. Seas 25 ft.
.SUN...W wind 30 kt. Seas 17 ft.

$$

PKZ173-301330-
Nikolski to Seguam Island Bering Side-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 20 kt in the morning becoming variable 10 kt. 
Seas 9 ft.
.WED NIGHT...Variable wind 10 kt becoming SE 30 kt late. Seas 7 ft.
.THU...SE wind 60 kt. Seas 24 ft.
.THU NIGHT...SW wind 30 kt. Seas 18 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 20 ft.
.SUN...W wind 25 kt. Seas 12 ft.

$$

PKZ174-301330-
Nikolski to Seguam Island Pacific Side-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...SW wind 25 kt. Seas 18 ft.
.WED...N wind 15 kt. Seas 12 ft.
.WED NIGHT...N wind 20 kt becoming SE 25 kt late. Seas 10 ft.
.THU...SE wind 60 kt. Seas 25 ft.
.THU NIGHT...SW wind 35 kt. Seas 31 ft.
.FRI...SW wind 40 kt. Seas 31 ft.
.SAT...SW wind 30 kt. Seas 30 ft.
.SUN...W wind 25 kt. Seas 19 ft.

$$

PKZ175-301330-
Seguam Island to Adak Bering Side-
306 PM AKST Tue Dec 29 2020

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 10 ft.
.WED...SW wind 25 kt. Seas 9 ft.
.WED NIGHT...S wind 25 kt becoming SE 55 kt after midnight. 
Gusts to 65 kt late. Seas 8 ft building to 14 ft after midnight.
.THU...S wind 65 kt. Seas 23 ft.
.THU NIGHT...SW wind 45 kt. Seas 24 ft.
.FRI...SW wind 40 kt. Seas 23 ft.
.SAT...SW wind 30 kt. Seas 19 ft.
.SUN...W wind 25 kt. Seas 11 ft.

$$

PKZ176-301330-
Seguam Island to Adak Pacific Side-
306 PM AKST Tue Dec 29 2020

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 16 ft.
.WED...SW wind 20 kt. Seas 12 ft.
.WED NIGHT...S wind 25 kt becoming SE 60 kt after midnight. 
Seas 11 ft building to 18 ft after midnight. Snow.
.THU...S wind 65 kt. Seas 29 ft.
.THU NIGHT...SW wind 45 kt. Seas 38 ft.
.FRI...SW wind 45 kt. Seas 36 ft.
.SAT...SW wind 30 kt. Seas 32 ft.
.SUN...SW wind 30 kt. Seas 21 ft.

$$

PKZ177-301330-
Adak to Kiska-
306 PM AKST Tue Dec 29 2020

...HURRICANE FORCE WIND WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 14 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.WED NIGHT...SE wind 40 kt increasing to 65 kt after midnight. 
Seas 15 ft building to 26 ft after midnight. Snow and rain.
.THU AND THU NIGHT...SW wind 65 kt. Seas 45 ft.
.FRI...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 35 kt. Seas 31 ft.
.SUN...SW wind 30 kt. Seas 22 ft.

$$

PKZ178-301330-
Kiska to Attu-
306 PM AKST Tue Dec 29 2020

...HURRICANE FORCE WIND WARNING WEDNESDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 17 ft. Snow showers.
.WED...SW wind 35 kt. Seas 19 ft.
.WED NIGHT...SE wind 40 kt increasing to 65 kt after midnight. 
Seas 18 ft building to 27 ft after midnight. Snow and rain.
.THU AND THU NIGHT...SW wind 70 kt. Seas 52 ft.
.FRI...SW wind 55 kt. Seas 44 ft.
.SAT...SW wind 45 kt. Seas 31 ft.
.SUN...SW wind 30 kt. Seas 22 ft.

$$

PKZ179-301330-
Pribilof Islands Near Shore Waters-
306 PM AKST Tue Dec 29 2020

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

.TONIGHT...S wind 25 kt becoming SW 15 kt around midnight. 
Seas 11 ft.
.WED...S wind 20 kt. Seas 9 ft.
.WED NIGHT...SW wind 15 kt becoming SE after midnight. 
Seas 8 ft.
.THU...SE wind 45 kt. Seas 15 ft.
.THU NIGHT...SE wind 50 kt. Seas 20 ft.
.FRI...SW wind 20 kt. Seas 19 ft.
.SAT...SE wind 15 kt. Seas 15 ft.
.SUN...N wind 15 kt. Seas 11 ft.

$$

PKZ180-301330-
Kuskokwim Delta and Etolin Strait-
306 PM AKST Tue Dec 29 2020

.TONIGHT...SE wind 20 kt becoming NW after midnight. 
Seas 6 ft. Rain and snow.
.WED...W wind 20 kt diminishing to 10 kt in the afternoon. 
Seas 5 ft.
.WED NIGHT...Variable wind 10 kt. Seas 4 ft.
.THU...E wind 30 kt. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 13 ft.
.FRI...E wind 45 kt. Seas 14 ft.
.SAT...N wind 15 kt. Seas 9 ft.
.SUN...N wind 20 kt. Seas 6 ft.

$$

PKZ181-301330-
North and West of Nunivak Island-
306 PM AKST Tue Dec 29 2020

.TONIGHT...SE wind 20 kt diminishing to 10 kt after midnight.
.WED AND WED NIGHT...S wind 15 kt.
.THU...SE wind 30 kt.
.THU NIGHT...E wind 40 kt.
.FRI...E wind 45 kt.
.SAT...NE wind 15 kt.
.SUN...N wind 20 kt.

$$

PKZ185-301330-
Saint Matthew Island Waters-
306 PM AKST Tue Dec 29 2020

...GALE WARNING TONIGHT...

.TONIGHT...E of Saint Matthew Island...SE wind 20 kt. 
W of Saint Matthew Island...E 35 kt diminishing to 25 kt 
after midnight. Seas 13 ft.
.WED...SE wind 20 kt. Seas 9 ft.
.WED NIGHT...E of Saint Matthew Island, S wind 20 kt. 
W of Saint Matthew Island, S wind 20 kt increasing 
to 30 kt after midnight. Seas 10 ft.
.THU...SE wind 50 kt. Seas 18 ft.
.THU NIGHT...E wind 55 kt. Seas 27 ft.
.FRI...E wind 45 kt. Seas 30 ft.
.SAT...NE wind 30 kt. Seas 22 ft.
.SUN...N wind 30 kt. Seas 16 ft.

$$
411 
FZAK52 PAFC 301258
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
358 AM AKST Wed Dec 30 2020

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.

PKZ199-310200-
358 AM AKST Wed Dec 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A strong North Pacific low moves to 200 nm southwest of Attu Wed 
night at 932 mb, then to 80 nm northeast of Attu at 928 mb by Thu
evening. Its front tracks west to east across the Aleutians 
through Thu.

$$

PKZ150-310200-
South of the AK Peninsula Sitkinak to Castle Cape-
358 AM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 25 kt diminishing to 15 kt in the afternoon. Seas
13 ft.
.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. Seas
10 ft.
.THU...E wind 30 kt. Seas 13 ft building to 18 ft in the
afternoon.
.THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...NE wind 35 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 17 ft.
.SUN...W wind 15 kt. Seas 15 ft.

$$

PKZ155-310200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
358 AM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...E wind 15 kt. From the Shumagin Islands E, SW wind 20 kt
becoming SE in the afternoon. Seas 13 ft.
.TONIGHT...NE wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft.
.FRI...W wind 35 kt. Seas 21 ft.
.SAT...SW wind 25 kt. Seas 22 ft.
.SUN...SW wind 20 kt. Seas 17 ft.

$$

PKZ160-310200-
Bristol Bay-
358 AM AKST Wed Dec 30 2020

.TODAY...W wind 20 kt. Seas 5 ft.
.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 8 ft.
.FRI...NE wind 35 kt. Seas 8 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN...E wind 15 kt. Seas 5 ft.

$$

PKZ165-310200-
Port Heiden to Cape Sarichef-
358 AM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...Variable wind 10 kt. From Port Moller E, SW wind 20 kt in 
the morning becoming variable at 10 kt. Seas 6 ft.
.TONIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 10 ft.
.FRI...W wind 35 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 12 ft.

$$

PKZ170-310200-
Cape Sarichef to Nikolski Bering Side-
358 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...SW wind 15 kt becoming variable in the afternoon. Seas 7 
ft.
.TONIGHT...NE wind 15 kt. Seas 7 ft.
.THU...SE wind 35 kt increasing to 50 kt in the afternoon. Seas 7
ft building to 16 ft in the afternoon. Snow.
.THU NIGHT...S wind 45 kt. Seas 16 ft.
.FRI THROUGH SAT...S wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 12 ft.

$$

PKZ171-310200-
Unalaska Bay-
358 AM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY...

.TODAY...Variable wind less than 10 kt becoming N 10 kt in the
afternoon. Seas 3 ft.
.TONIGHT...N wind 15 kt becoming E after midnight. Seas 5 ft
subsiding to 3 ft after midnight.
.THU...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
3 ft increasing to 7 ft by afternoon. Snow.
.THU NIGHT...S wind 45 kt. Seas 7 ft.
.FRI...SW wind 20 kt. Seas 3 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.

$$

PKZ172-310200-
Cape Sarichef to Nikolski Pacific Side-
358 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...NE wind 15 kt. Seas 13 ft.
.TONIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
13 ft increasing to 20 ft by afternoon. Snow.
.THU NIGHT...SW wind 45 kt. Seas 21 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 28 ft.
.SUN...SW wind 25 kt. Seas 18 ft.

$$

PKZ173-310200-
Nikolski to Seguam Island Bering Side-
358 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...W wind 20 kt. Seas 9 ft.
.TONIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft.
.THU...SE wind 60 kt. Seas 18 ft building to 26 ft in the
afternoon. Rain and snow.
.THU NIGHT...SW wind 30 kt. Seas 20 ft.
.FRI THROUGH SAT...SW wind 30 kt. Seas 20 ft.
.SUN...SW wind 25 kt. Seas 13 ft.

$$

PKZ174-310200-
Nikolski to Seguam Island Pacific Side-
358 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...N wind 15 kt. Seas 12 ft.
.TONIGHT...N wind 15 kt becoming E after midnight. Seas 10 ft.
.THU...S wind 60 kt. Seas 20 ft building to 27 ft in the afternoon. 
Rain and snow.
.THU NIGHT...SW wind 35 kt. Seas 32 ft.
.FRI...SW wind 40 kt. Seas 35 ft.
.SAT...SW wind 30 kt. Seas 35 ft.
.SUN...SW wind 30 kt. Seas 20 ft.

$$

PKZ175-310200-
Seguam Island to Adak Bering Side-
358 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TODAY...SW wind 25 kt. Seas 9 ft.
.TONIGHT...S wind 25 kt becoming SE 55 kt after midnight. Seas 7
ft building to 17 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 50 kt in the afternoon. Seas 25 ft.
Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 26 ft.
.FRI...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 35 kt. Seas 25 ft.
.SUN...SW wind 25 kt. Seas 13 ft.

$$

PKZ176-310200-
Seguam Island to Adak Pacific Side-
358 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TODAY...W wind 20 kt. Seas 12 ft.
.TONIGHT...S wind 25 kt becoming SE 60 kt after midnight. Seas 10
ft building to 21 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas 32 ft
building to 37 ft by afternoon. Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 41 ft.
.FRI...SW wind 45 kt. Seas 39 ft.
.SAT...SW wind 35 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 21 ft.

$$

PKZ177-310200-
Adak to Kiska-
358 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 25 kt. Seas 13 ft.
.TONIGHT...SE wind 50 kt increasing to 65 kt after midnight. Seas
13 ft building to 27 ft after midnight. Snow and rain.
.THU...S wind 65 kt. Bering side, seas 27 ft building to 44 ft in 
the afternoon. Pacific side, seas 39 ft building to 53 ft in the 
afternoon. Rain and snow.
.THU NIGHT...SW wind 65 kt. Seas 49 ft.
.FRI...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 40 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 22 ft.

$$

PKZ178-310200-
Kiska to Attu-
358 AM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 35 kt. Seas 18 ft.
.TONIGHT...SE wind 65 kt. Seas 18 ft building to 27 ft after
midnight. Snow and rain.
.THU...SE wind 65 kt becoming SW 75 kt in the afternoon. Bering
side, seas 27 ft building to 48 ft in the afternoon. Pacific side, 
seas 45 ft building to 57 ft in the afternoon. Widespread rain and
snow showers.
.THU NIGHT...SW wind 70 kt. Seas 52 ft.
.FRI...SW wind 55 kt. Seas 44 ft.
.SAT...SW wind 50 kt. Seas 32 ft.
.SUN...W wind 35 kt. Seas 19 ft.

$$

PKZ179-310200-
Pribilof Islands Near Shore Waters-
358 AM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY...

.TODAY...S wind 20 kt. Seas 9 ft.
.TONIGHT...SW wind 20 kt in the evening becoming SE 10 kt. Seas 8 
ft.
.THU...SE wind 30 kt increasing to 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 50 kt. Seas 22 ft.
.FRI...S wind 20 kt. Seas 20 ft.
.SAT...SE wind 20 kt. Seas 19 ft.
.SUN...NE wind 25 kt. Seas 13 ft.

$$

PKZ180-310200-
Kuskokwim Delta and Etolin Strait-
358 AM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...W wind 15 kt becoming SW in the afternoon. Seas 5 ft.
.TONIGHT...Variable wind 10 kt. Seas 4 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 14 ft.
.FRI...E wind 45 kt. Seas 15 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas 8 ft.

$$

PKZ181-310200-
North and West of Nunivak Island-
358 AM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THURSDAY...

.TODAY...SE wind 15 kt. Seas in ice free waters 3 ft.
.TONIGHT...S wind 20 kt. Seas in ice free waters 3 ft.
.THU...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 5 ft. Freezing spray.
.THU NIGHT...E wind 45 kt. Seas in ice free waters 10 ft.
.FRI...E wind 40 kt. Seas in ice free waters 11 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SUN...N wind 25 kt. Seas in ice free waters 6 ft.

$$

PKZ185-310200-
Saint Matthew Island Waters-
358 AM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TODAY...SE wind 20 kt. Seas 9 ft.
.TONIGHT...S wind 25 kt. Seas 10 ft.
.THU...E of Saint Matthew Island, SE wind 25 kt becoming E 40 kt
in the afternoon. Seas 10 ft. W of Saint Matthew Island, SE wind 35 
kt becoming E 50 kt in the afternoon. Seas 11 ft building to 18 ft in
the afternoon.
.THU NIGHT...E wind 55 kt. Seas 26 ft.
.FRI...E wind 45 kt. Seas 29 ft.
.SAT...NE wind 35 kt. Seas 21 ft.
.SUN...N wind 35 kt. Seas 15 ft.

$$
373 
FZAK52 PAFC 310056
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 PM AKST Wed Dec 30 2020

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.

PKZ199-311400-
356 PM AKST Wed Dec 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb on Thu afternoon, with 
the highest wave heights and winds between Shemya and Adak, and 
continues to 150 nm northeast of Attu and weakens to 936 mb on Fri
afternoon.

$$

PKZ150-311400-
South of the AK Peninsula Sitkinak to Castle Cape-
356 PM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. 
Seas 10 ft.
.THU...E wind 30 kt. Seas 13 ft building to 18 ft in the
afternoon.
.THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...E wind 30 kt. Seas 14 ft.
.FRI NIGHT...N wind 35 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 17 ft.
.SUN...W wind 15 kt. Seas 15 ft.
.MON...W wind 15 kt. Seas 11 ft.

$$

PKZ155-311400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 35 kt. Seas 20 ft.
.FRI NIGHT...W wind 30 kt. Seas 21 ft.
.SAT...SW wind 25 kt. Seas 22 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 16 ft.

$$

PKZ160-311400-
Bristol Bay-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 8 ft.
.FRI...E wind 35 kt. Seas 8 ft.
.FRI NIGHT...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 5 ft.

$$

PKZ165-311400-
Port Heiden to Cape Sarichef-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 10 ft. Rain and snow.
.FRI...S wind 35 kt. Seas 12 ft.
.FRI NIGHT...W wind 25 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 12 ft.
.MON...W wind 15 kt. Seas 7 ft.

$$

PKZ170-311400-
Cape Sarichef to Nikolski Bering Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 15 kt. Seas 7 ft.
.THU...SE wind 35 kt increasing to 50 kt in the afternoon. Seas 7
ft building to 14 ft in the afternoon. Snow.
.THU NIGHT...SE wind 45 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI AND FRI NIGHT...SW wind 25 kt. Seas 17 ft.
.SAT...S wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 10 ft.

$$

PKZ171-311400-
Unalaska Bay-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...N wind 15 kt becoming E after midnight. Seas 5 ft
subsiding to 3 ft after midnight.
.THU...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
6 ft. Snow.
.THU NIGHT...SE wind 45 kt becoming W 25 kt after midnight. Seas
7 ft subsiding to 4 ft after midnight. Snow with rain.
.FRI...SW wind 20 kt. Seas 3 ft.
.FRI NIGHT...SW wind 15 kt. Seas 2 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 3 ft.

$$

PKZ172-311400-
Cape Sarichef to Nikolski Pacific Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 30 kt increasing to 50 kt in the afternoon. 
Seas 18 ft. Snow.
.THU NIGHT...S wind 45 kt becoming W 30 kt after midnight. 
Seas 21 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 25 ft.
.FRI NIGHT...W wind 30 kt. Seas 27 ft.
.SAT...SW wind 30 kt. Seas 28 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 17 ft.

$$

PKZ173-311400-
Nikolski to Seguam Island Bering Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft.
.THU...SE wind 60 kt. Seas 18 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 30 kt. Seas 20 ft. Snow showers and rain
showers.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 20 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 11 ft.

$$

PKZ174-311400-
Nikolski to Seguam Island Pacific Side-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 20 kt becoming E after midnight. Seas 10 ft.
.THU...S wind 60 kt. Seas 20 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...W wind 35 kt. Seas 25 ft building to 32 ft after
midnight. Snow showers.
.FRI...SW wind 30 kt. Seas 31 ft.
.FRI NIGHT...SW wind 40 kt. Seas 35 ft.
.SAT...SW wind 30 kt. Seas 35 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-311400-
Seguam Island to Adak Bering Side-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 55 kt after midnight. 
Seas 7 ft building to 15 ft after midnight. Snow.
.THU...SE wind 65 kt becoming S 50 kt in the afternoon. 
Seas 24 ft. Snow and rain.
.THU NIGHT...SW wind 45 kt. Seas 26 ft. Snow showers.
.FRI AND FRI NIGHT...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 35 kt. Seas 25 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-311400-
Seguam Island to Adak Pacific Side-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 60 kt after midnight. Seas 10
ft building to 19 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas 33
ft. Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 41 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 36 ft.
.FRI NIGHT...SW wind 40 kt. Seas 39 ft.
.SAT...SW wind 35 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 21 ft.
.MON...W wind 30 kt. Seas 21 ft.

$$

PKZ177-311400-
Adak to Kiska-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 50 kt increasing to 65 kt after midnight. Seas
13 ft building to 26 ft after midnight. Snow and rain.
.THU...S wind 65 kt. Bering side, seas 27 ft building to 40 ft in
the afternoon. Pac side, seas 39 ft building to 53 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 65 kt diminishing to 55 kt after midnight.
Seas 43 ft Bering side...51 ft Pac side. Snow.
.FRI...SW wind 50 kt. Seas 42 ft.
.FRI NIGHT...SW wind 45 kt. Seas 42 ft.
.SAT...SW wind 40 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 22 ft.
.MON...NW wind 30 kt. Seas 20 ft.

$$

PKZ178-311400-
Kiska to Attu-
356 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 65 kt. Seas 18 ft building to 27 ft after
midnight. Snow and rain.
.THU...SE wind 65 kt becoming SW 75 kt in the afternoon. Bering
side, seas 27 ft building to 38 ft in the afternoon. Pac side,
seas 45 ft building to 56 ft in the afternoon. Widespread snow 
showers and rain.
.THU NIGHT...W wind 70 kt becoming SW 60 kt after midnight. Seas
45 ft Bering side...54 ft Pac side. Widespread rain and snow
showers.
.FRI...SW wind 55 kt. Seas 44 ft.
.FRI NIGHT...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 50 kt. Seas 32 ft.
.SUN...W wind 35 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 19 ft.

$$

PKZ179-311400-
Pribilof Islands Near Shore Waters-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.THU...SE wind 30 kt increasing to 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 50 kt diminishing to 35 kt after midnight.
Seas 22 ft. Rain.
.FRI AND FRI NIGHT...S wind 20 kt. Seas 19 ft.
.SAT...SE wind 20 kt. Seas 19 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 12 ft.

$$

PKZ180-311400-
Kuskokwim Delta and Etolin Strait-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 10 kt. Seas 4 ft. Areas of freezing fog.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 14 ft. Heavy freezing spray.
.FRI...E wind 45 kt. Seas 15 ft.
.FRI NIGHT...E wind 25 kt. Seas 12 ft.
.SAT THROUGH MON...N wind 20 kt. Seas 7 ft.

$$

PKZ181-311400-
North and West of Nunivak Island-
356 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas in ice free waters 3 ft.
.THU...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 5 ft. Freezing spray.
.THU NIGHT...E wind 45 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...E wind 40 kt. Seas in ice free waters 11 ft.
.FRI NIGHT...E wind 25 kt. Seas in ice free waters 6 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SUN THROUGH MON...N wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ185-311400-
Saint Matthew Island Waters-
356 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.THU...E of Saint Matthew Island, SE wind 25 kt becoming E 40 kt
in the afternoon. W of Saint Matthew Island, SE wind 35 kt becoming 
E 50 kt in the afternoon. Seas 15 ft.
.THU NIGHT...E wind 45 kt E of Saint Matthew Island... E 55 kt W
of Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt. Seas 29 ft.
.FRI NIGHT...E wind 35 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 21 ft.
.SUN...N wind 35 kt. Seas 15 ft.
.MON...N wind 30 kt. Seas 15 ft.

$$
251 
FZAK52 PAFC 310102 CCA
CWFALU

Coastal Waters Forecast...CORRECTED
National Weather Service Anchorage Alaska
402 PM AKST Wed Dec 30 2020

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.

Corrected to add fog to 160, 181.

PKZ199-311400-
402 PM AKST Wed Dec 30 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb on Thu afternoon, with 
the highest wave heights and winds between Shemya and Adak, and 
continues to 150 nm northeast of Attu and weakens to 936 mb on Fri
afternoon.

$$

PKZ150-311400-
South of the AK Peninsula Sitkinak to Castle Cape-
402 PM AKST Wed Dec 30 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 20 kt increasing to 30 kt after midnight. 
Seas 10 ft.
.THU...E wind 30 kt. Seas 13 ft building to 18 ft in the
afternoon.
.THU NIGHT...E wind 30 kt. Seas 18 ft.
.FRI...E wind 30 kt. Seas 14 ft.
.FRI NIGHT...N wind 35 kt. Seas 14 ft.
.SAT...W wind 20 kt. Seas 17 ft.
.SUN...W wind 15 kt. Seas 15 ft.
.MON...W wind 15 kt. Seas 11 ft.

$$

PKZ155-311400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NE wind 30 kt. Seas 11 ft.
.THU...NE wind 30 kt. Seas 17 ft.
.THU NIGHT...SE wind 35 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 35 kt. Seas 20 ft.
.FRI NIGHT...W wind 30 kt. Seas 21 ft.
.SAT...SW wind 25 kt. Seas 22 ft.
.SUN THROUGH MON...W wind 20 kt. Seas 16 ft.

$$

PKZ160-311400-
Bristol Bay-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...Variable wind less than 10 kt becoming NE 15 kt after
midnight. Seas 3 ft. Areas of fog and freezing fog.
.THU...E wind 20 kt. Seas 4 ft.
.THU NIGHT...E wind 35 kt. Seas 8 ft.
.FRI...E wind 35 kt. Seas 8 ft.
.FRI NIGHT...NE wind 25 kt. Seas 6 ft.
.SAT...N wind 15 kt. Seas 4 ft.
.SUN THROUGH MON...NE wind 15 kt. Seas 5 ft.

$$

PKZ165-311400-
Port Heiden to Cape Sarichef-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...E wind 15 kt. Seas 6 ft.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...SE wind 40 kt. Seas 10 ft. Rain and snow.
.FRI...S wind 35 kt. Seas 12 ft.
.FRI NIGHT...W wind 25 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 15 kt. Seas 12 ft.
.MON...W wind 15 kt. Seas 7 ft.

$$

PKZ170-311400-
Cape Sarichef to Nikolski Bering Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 15 kt. Seas 7 ft.
.THU...SE wind 35 kt increasing to 50 kt in the afternoon. Seas 7
ft building to 14 ft in the afternoon. Snow.
.THU NIGHT...SE wind 45 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI AND FRI NIGHT...SW wind 25 kt. Seas 17 ft.
.SAT...S wind 25 kt. Seas 18 ft.
.SUN...SW wind 20 kt. Seas 12 ft.
.MON...W wind 20 kt. Seas 10 ft.

$$

PKZ171-311400-
Unalaska Bay-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...N wind 15 kt becoming E after midnight. Seas 5 ft
subsiding to 3 ft after midnight.
.THU...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
6 ft. Snow.
.THU NIGHT...SE wind 45 kt becoming W 25 kt after midnight. Seas
7 ft subsiding to 4 ft after midnight. Snow with rain.
.FRI...SW wind 20 kt. Seas 3 ft.
.FRI NIGHT...SW wind 15 kt. Seas 2 ft.
.SAT...S wind 15 kt. Seas 2 ft.
.SUN...SW wind 20 kt. Seas 2 ft.
.MON...SW wind 15 kt. Seas 3 ft.

$$

PKZ172-311400-
Cape Sarichef to Nikolski Pacific Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...NE wind 20 kt. Seas 10 ft.
.THU...SE wind 30 kt increasing to 50 kt in the afternoon. 
Seas 18 ft. Snow.
.THU NIGHT...S wind 45 kt becoming W 30 kt after midnight. 
Seas 21 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 25 ft.
.FRI NIGHT...W wind 30 kt. Seas 27 ft.
.SAT...SW wind 30 kt. Seas 28 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas 17 ft.

$$

PKZ173-311400-
Nikolski to Seguam Island Bering Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...Variable wind 10 kt becoming SE 30 kt after midnight.
Seas 7 ft.
.THU...SE wind 60 kt. Seas 18 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 30 kt. Seas 20 ft. Snow showers and rain
showers.
.FRI AND FRI NIGHT...SW wind 30 kt. Seas 20 ft.
.SAT...SW wind 30 kt. Seas 20 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 11 ft.

$$

PKZ174-311400-
Nikolski to Seguam Island Pacific Side-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY...

.TONIGHT...N wind 20 kt becoming E after midnight. Seas 10 ft.
.THU...S wind 60 kt. Seas 20 ft building to 26 ft in the
afternoon. Snow and rain.
.THU NIGHT...W wind 35 kt. Seas 25 ft building to 32 ft after
midnight. Snow showers.
.FRI...SW wind 30 kt. Seas 31 ft.
.FRI NIGHT...SW wind 40 kt. Seas 35 ft.
.SAT...SW wind 30 kt. Seas 35 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas 19 ft.

$$

PKZ175-311400-
Seguam Island to Adak Bering Side-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 55 kt after midnight. 
Seas 7 ft building to 15 ft after midnight. Snow.
.THU...SE wind 65 kt becoming S 50 kt in the afternoon. 
Seas 24 ft. Snow and rain.
.THU NIGHT...SW wind 45 kt. Seas 26 ft. Snow showers.
.FRI AND FRI NIGHT...SW wind 40 kt. Seas 25 ft.
.SAT...SW wind 35 kt. Seas 25 ft.
.SUN...SW wind 25 kt. Seas 13 ft.
.MON...NW wind 25 kt. Seas 12 ft.

$$

PKZ176-311400-
Seguam Island to Adak Pacific Side-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THURSDAY...

.TONIGHT...S wind 25 kt becoming SE 60 kt after midnight. Seas 10
ft building to 19 ft after midnight. Snow.
.THU...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas 33
ft. Rain and snow.
.THU NIGHT...SW wind 45 kt. Seas 41 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 36 ft.
.FRI NIGHT...SW wind 40 kt. Seas 39 ft.
.SAT...SW wind 35 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 21 ft.
.MON...W wind 30 kt. Seas 21 ft.

$$

PKZ177-311400-
Adak to Kiska-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 50 kt increasing to 65 kt after midnight. Seas
13 ft building to 26 ft after midnight. Snow and rain.
.THU...S wind 65 kt. Bering side, seas 27 ft building to 40 ft in
the afternoon. Pac side, seas 39 ft building to 53 ft in the
afternoon. Snow and rain.
.THU NIGHT...SW wind 65 kt diminishing to 55 kt after midnight.
Seas 43 ft Bering side...51 ft Pac side. Snow.
.FRI...SW wind 50 kt. Seas 42 ft.
.FRI NIGHT...SW wind 45 kt. Seas 42 ft.
.SAT...SW wind 40 kt. Seas 37 ft.
.SUN...SW wind 35 kt. Seas 22 ft.
.MON...NW wind 30 kt. Seas 20 ft.

$$

PKZ178-311400-
Kiska to Attu-
402 PM AKST Wed Dec 30 2020

...HURRICANE FORCE WIND WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SE wind 65 kt. Seas 18 ft building to 27 ft after
midnight. Snow and rain.
.THU...SE wind 65 kt becoming SW 75 kt in the afternoon. Bering
side, seas 27 ft building to 38 ft in the afternoon. Pac side,
seas 45 ft building to 56 ft in the afternoon. Widespread snow 
showers and rain.
.THU NIGHT...W wind 70 kt becoming SW 60 kt after midnight. Seas
45 ft Bering side...54 ft Pac side. Widespread rain and snow
showers.
.FRI...SW wind 55 kt. Seas 44 ft.
.FRI NIGHT...SW wind 50 kt. Seas 42 ft.
.SAT...SW wind 50 kt. Seas 32 ft.
.SUN...W wind 35 kt. Seas 19 ft.
.MON...NW wind 30 kt. Seas 19 ft.

$$

PKZ179-311400-
Pribilof Islands Near Shore Waters-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt in the evening becoming variable 10 kt.
Seas 8 ft.
.THU...SE wind 30 kt increasing to 45 kt in the afternoon. Seas 9
ft building to 15 ft in the afternoon. Snow and rain.
.THU NIGHT...SE wind 50 kt diminishing to 35 kt after midnight.
Seas 22 ft. Rain.
.FRI AND FRI NIGHT...S wind 20 kt. Seas 19 ft.
.SAT...SE wind 20 kt. Seas 19 ft.
.SUN THROUGH MON...N wind 25 kt. Seas 12 ft.

$$

PKZ180-311400-
Kuskokwim Delta and Etolin Strait-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 10 kt. Seas 4 ft. Areas of freezing fog.
.THU...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7 ft.
.THU NIGHT...E wind 45 kt. Seas 14 ft. Heavy freezing spray.
.FRI...E wind 45 kt. Seas 15 ft.
.FRI NIGHT...E wind 25 kt. Seas 12 ft.
.SAT THROUGH MON...N wind 20 kt. Seas 7 ft.

$$

PKZ181-311400-
North and West of Nunivak Island-
402 PM AKST Wed Dec 30 2020

...GALE WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas in ice free waters 3 ft. Areas of
freezing fog.
.THU...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 5 ft. Freezing spray.
.THU NIGHT...E wind 45 kt. Seas in ice free waters 10 ft. Heavy
freezing spray.
.FRI...E wind 40 kt. Seas in ice free waters 11 ft.
.FRI NIGHT...E wind 25 kt. Seas in ice free waters 6 ft.
.SAT...NE wind 20 kt. Seas in ice free waters 6 ft.
.SUN THROUGH MON...N wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ185-311400-
Saint Matthew Island Waters-
402 PM AKST Wed Dec 30 2020

...STORM WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.THU...E of Saint Matthew Island, SE wind 25 kt becoming E 40 kt
in the afternoon. W of Saint Matthew Island, SE wind 35 kt becoming 
E 50 kt in the afternoon. Seas 15 ft.
.THU NIGHT...E wind 45 kt E of Saint Matthew Island... E 55 kt W
of Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt. Seas 29 ft.
.FRI NIGHT...E wind 35 kt. Seas 25 ft.
.SAT...NE wind 35 kt. Seas 21 ft.
.SUN...N wind 35 kt. Seas 15 ft.
.MON...N wind 30 kt. Seas 15 ft.

$$
072 
FZAK52 PAFC 311323
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
423 AM AKST Thu Dec 31 2020

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.

PKZ199-010215-
423 AM AKST Thu Dec 31 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 947 mb low 60 nm southwest of Shemya will strengthen as it 
moves to 70 nm northeast of Attu at 925 mb this afternoon, with the 
highest wave heights and winds between Shemya and Adak, and continues
to 150 nm northeast of Attu and weakens to 936 mb on Fri afternoon.

$$

PKZ150-010215-
South of the AK Peninsula Sitkinak to Castle Cape-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 30 kt. Seas 14 ft building to 20 ft in the 
afternoon.
.TONIGHT...E wind 35 kt. Seas 18 ft.
.FRI...SE wind 30 kt. Seas 14 ft. Rain with snow.
.FRI NIGHT...NE wind 20 kt. Seas 12 ft.
.SAT THROUGH SUN...W wind 20 kt. Seas 15 ft.
.MON...NE wind 20 kt. Seas 17 ft.

$$

PKZ155-010215-
South of the AK Peninsula Castle Cape to Cape Sarichef-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...NE wind 30 kt. Seas 18 ft.
.TONIGHT...SE wind 40 kt. Seas 15 ft. Rain and snow.
.FRI...SW wind 20 kt, Seas 13 ft building to 18 ft in the
afternoon. From the Shumagin Islands E, S wind 30 kt becoming W 15 
kt in the afternoon, Seas 14 ft.
.FRI NIGHT...W wind 20 kt. Seas 19 ft.
.SAT...SW wind 20 kt. Seas 22 ft.
.SUN...W wind 25 kt. Seas 19 ft.
.MON...SE wind 15 kt. Seas 14 ft.

$$

PKZ160-010215-
Bristol Bay-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING FRIDAY...

.TODAY...E wind 25 kt. Seas 4 ft.
.TONIGHT...E wind 40 kt. Seas 11 ft. Freezing spray.
.FRI...E wind 40 kt diminishing to 30 kt in the afternoon. Seas
10 ft. Heavy freezing spray near coast. Rain and snow.
.FRI NIGHT...E wind 25 kt. Seas 5 ft.
.SAT THROUGH SUN...E wind 15 kt. Seas 5 ft.
.MON...NE wind 20 kt. Seas 5 ft.

$$

PKZ165-010215-
Port Heiden to Cape Sarichef-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...SE wind 45 kt. Seas 12 ft. Rain.
.FRI...S wind 20 kt. Seas 13 ft. From Port Moller E, S wind 30 kt 
diminishing to 15 kt in the afternoon. Seas 10 ft.
.FRI NIGHT...S wind 20 kt. Seas 12 ft.
.SAT...S wind 20 kt. Seas 11 ft.
.SUN...SW wind 20 kt. Seas 11 ft.
.MON...SE wind 15 kt. Seas 9 ft.

$$

PKZ170-010215-
Cape Sarichef to Nikolski Bering Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 35 kt increasing to 55 kt in the afternoon. Seas
7 ft building to 16 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming SW 30 kt after midnight. Seas
16 ft. Rain and snow.
.FRI...S wind 25 kt. Seas 18 ft.
.FRI NIGHT...S wind 25 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 25 kt. Seas 16 ft.
.MON...NW wind 15 kt. Seas 10 ft.

$$

PKZ171-010215-
Unalaska Bay-
423 AM AKST Thu Dec 31 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 25 kt increasing to 45 kt in the afternoon. Seas
4 ft building to 7 ft in the afternoon.
.TONIGHT...SE wind 45 kt becoming SW 25 kt after midnight. Seas 7
ft subsiding to 3 ft after midnight. Rain.
.FRI...S wind 15 kt. Seas 2 ft.
.FRI NIGHT...S wind 15 kt. Seas 2 ft.
.SAT THROUGH SUN...SW wind 15 kt. Seas 2 ft.
.MON...W wind 10 kt. Seas 3 ft.

$$

PKZ172-010215-
Cape Sarichef to Nikolski Pacific Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
14 ft building to 22 ft in the afternoon. Rain and snow.
.TONIGHT...S wind 45 kt becoming SW 30 kt after midnight. Seas
19 ft. Rain and snow.
.FRI...SW wind 25 kt. Seas 26 ft. Rain and snow showers.
.FRI NIGHT...SW wind 30 kt. Seas 27 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 26 ft.
.MON...W wind 20 kt. Seas 14 ft.

$$

PKZ173-010215-
Nikolski to Seguam Island Bering Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 19 ft building to 27 ft in the 
afternoon. Rain and snow.
.TONIGHT...SW wind 35 kt. Seas 19 ft. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 20 ft. Snow showers.
.FRI NIGHT...SW wind 35 kt. Seas 20 ft.
.SAT THROUGH SUN...SW wind 30 kt. Seas 20 ft.
.MON...W wind 25 kt. Seas 10 ft.

$$

PKZ174-010215-
Nikolski to Seguam Island Pacific Side-
423 AM AKST Thu Dec 31 2020

...STORM WARNING TODAY...

.TODAY...SE wind 60 kt. Seas 26 ft. Snow and rain.
.TONIGHT...W wind 40 kt. Seas 24 ft building to 35 ft after 
midnight. Rain and snow showers.
.FRI...SW wind 35 kt. Seas 34 ft. Snow showers.
.FRI NIGHT...SW wind 40 kt. Seas 36 ft.
.SAT...SW wind 35 kt. Seas 35 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...W wind 25 kt. Seas 19 ft.

$$

PKZ175-010215-
Seguam Island to Adak Bering Side-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming S 45 kt in the afternoon. Seas
24 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 29 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 26 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 40 kt. Seas 24 ft.
.SAT THROUGH SUN...SW wind 40 kt. Seas 22 ft.
.MON...NW wind 25 kt. Seas 9 ft.

$$

PKZ176-010215-
Seguam Island to Adak Pacific Side-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SE wind 65 kt becoming SW 45 kt in the afternoon. Seas
30 ft. Rain and snow.
.TONIGHT...SW wind 45 kt. Seas 43 ft. Snow showers.
.FRI...SW wind 45 kt. Seas 41 ft. Widespread rain and snow showers. 
.FRI NIGHT...SW wind 45 kt. Seas 43 ft.
.SAT...SW wind 40 kt. Seas 38 ft.
.SUN...SW wind 35 kt. Seas 27 ft.
.MON...NW wind 25 kt. Seas 22 ft.

$$

PKZ177-010215-
Adak to Kiska-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING TODAY...

.TODAY...SW wind 65 kt. Bering side, seas 25 ft building to 45 ft in
the afternoon. Pacific side, seas 37 ft building to 55 ft in the 
afternoon. Rain and snow showers.
.TONIGHT...SW wind 60 kt. Seas 42 ft Bering side... 53 ft Pacific 
side. Widespread snow showers.
.FRI...SW wind 55 kt. Seas 33 ft Bering side... 48 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...SW wind 50 kt. Seas 46 ft.
.SAT...W wind 45 kt. Seas 34 ft.
.SUN...SW wind 35 kt. Seas 23 ft.
.MON...N wind 20 kt. Seas 18 ft.

$$

PKZ178-010215-
Kiska to Attu-
423 AM AKST Thu Dec 31 2020

...HURRICANE FORCE WIND WARNING THROUGH TONIGHT...

.TODAY...Bering side, SE wind 50 kt becoming SW 60 kt in the
afternoon, Seas 29 ft building to 48 ft in the afternoon. Pacific side,
S wind 70 kt, Seas 51 ft building to 60 ft in the afternoon. Rain 
and snow showers.
.TONIGHT...W wind 65 kt. Seas 45 ft Bering side...55 ft Pacific 
side. Widespread rain and snow showers.
.FRI...W wind 50 kt. Seas 33 ft Bering side...42 ft Pacific side.
Widespread rain and snow showers.
.FRI NIGHT...W wind 50 kt. Seas 35 ft.
.SAT...W wind 40 kt. Seas 26 ft.
.SUN THROUGH MON...N wind 35 kt. Seas 19 ft.

$$

PKZ179-010215-
Pribilof Islands Near Shore Waters-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...SE wind 30 kt increasing to 50 kt in the afternoon. Seas
9 ft building to 15 ft in the afternoon. Rain and snow.
.TONIGHT...SE wind 50 kt becoming S 25 kt after midnight. Seas
21 ft subsiding to 16 ft after midnight. Rain and snow showers.
.FRI...S wind 25 kt. Seas 20 ft.
.FRI NIGHT...SE wind 30 kt. Seas 18 ft.
.SAT...SE wind 25 kt. Seas 18 ft.
.SUN...SE wind 25 kt. Seas 14 ft.
.MON...NE wind 25 kt. Seas 12 ft.

$$

PKZ180-010215-
Kuskokwim Delta and Etolin Strait-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...E wind 20 kt becoming SE 30 kt in the afternoon. Seas 7
ft.
.TONIGHT...E wind 45 kt. Seas 11 ft building to 16 ft after
midnight. Snow. Heavy freezing spray near coast.
.FRI...SE wind 45 kt diminishing to 30 kt in the afternoon. Seas
14 ft. Heavy freezing spray near coast.
.FRI NIGHT...SE wind 20 kt. Seas 9 ft.
.SAT...E wind 15 kt. Seas 8 ft.
.SUN THROUGH MON...NE wind 20 kt. Seas 7 ft.

$$

PKZ181-010215-
North and West of Nunivak Island-
423 AM AKST Thu Dec 31 2020

...GALE WARNING TONIGHT AND FRIDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY...

.TODAY...SE wind 20 kt becoming E 30 kt in the afternoon. Seas in
ice free waters 6 ft. Freezing spray.
.TONIGHT...E wind 45 kt. Seas in ice free waters 15 ft. Heavy 
freezing spray. Snow.
.FRI...E wind 45 kt becoming SE 35 kt in the afternoon. Seas in
ice free waters 14 ft subsiding to 9 ft in the afternoon. Heavy 
freezing spray.
.FRI NIGHT...E wind 20 kt. Seas in ice free waters 8 ft.
.SAT THROUGH SUN...NE wind 20 kt. Seas in ice free waters 6 ft.
.MON...NE wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ185-010215-
Saint Matthew Island Waters-
423 AM AKST Thu Dec 31 2020

...STORM WARNING THROUGH TONIGHT...

.TODAY...E of Saint Matthew Island, SE wind 25 kt becoming E 35 kt
in the afternoon. W of Saint Matthew Island, SE wind 30 kt
becoming E 50 kt in the afternoon. Seas 10 ft building to 16 ft in 
the afternoon.
.TONIGHT...E wind 45 kt E of Saint Matthew Island...E 55 kt W of
Saint Matthew Island. Seas 26 ft. Snow.
.FRI...E wind 45 kt becoming SE 30 kt in the afternoon. Seas 27
ft.
.FRI NIGHT...E wind 30 kt. Seas 21 ft.
.SAT THROUGH SUN...NE wind 35 kt. Seas 18 ft.
.MON...NE wind 30 kt. Seas 14 ft.

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this small craft advisory went out at Dec 28, 5:08 PM AKST, 11 hours 20 minutes earlier.

Area forecast discussion, Dec 28, 5:08 PM AKST, 11 hours 20 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
508 PM AKST Mon Dec 28 2020

.ANALYSIS AND UPPER LEVELS...

Deep southerly flow continues to bring widespread cloudcover and a
rain/snow mix to much of the southern mainland. The majority of
the precipitation is focused along a sharp shortwave trough moving
northward from the Kenai Peninsula into the Susitna Valley. This
shortwave produced a band of precipitation heavy enough to produce
ice pellets and wet snow as it moved northward through the
Kenai/Soldotna area late this morning. Under this trough, a
weakening low centered over Shelikof Strait brought gale force
winds into Prince William Sound and the Barren Islands this
morning, but have all slowly diminishing as the low progressed
northward and weakened.

Over the Bering Sea, a slowly weakening 957 mb low centered over
the dateline continues to bring gale force winds and rain showers
to much of the area west of the Pribilof Islands. The next system
can be seen rotating around the southern edge of this low tracking
towards the AKPen, which is expected to bring more active weather
to the Southwest coast for Tuesday.

&&

.MODEL DISCUSSION...

Synoptic model agreement is now very good through mid week with
both the approaching lows in the AKPen and Eastern Gulf. The
agreement with the Eastern Gulf low in particular has improved in
the last few days, so the forecast was changed today to reflect a
deeper and slower low track with good confidence. Starting on
Thursday the guidance is also in remarkably good agreement the
next low to move through the Western Aleutians, considering how
extremely deep and rapidly developing this system is. There
remains some question with the exact positioning of this system,
but there is good consensus that this system will bomb out to
as deep as 930 mb, or potentially even approach the North Pacific
record of 924 mb. Read the Marine discussion below for more
information on this system.

&&

.AVIATION...

PANC...The SE winds should dissipate through the evening, leaving
VFR conditions and diminishing winds that will continue into the
day on Tuesday.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...

A North Pacific low will move to the northern Gulf of Alaska tonight.
Its frontal boundary will linger over Prince William Sound (PWS),
then retreats back to the northern Gulf by Tue morning in time
for the low curving westward to the Barren Islands through Tue
evening. This front will transition into a barrier jet which will
increase winds to gales on Tue along the coast. This feature will
be the main weather maker especially along the coastal areas over
the next couple days.

The approach of the next North Pacific low moving closer to
Kodiak Island on Tue will move the same direction as the
aforementioned low, and these two separate lows could either merge
or one would weaken while the other advances inland toward the
Alaska Range by Tue night. Essentially, the barrier jet will usher
strong gusts and increased rainfall mainly over the eastern Kenai
Peninsula through Prince William Sound through Tue night until
the trough weakens and moves inland through early Wed morning.
Warm southerly winds will continue to bring warmer temperatures
inland through at least Tue night, before cold air advection from
the Gulf moves over the region by Wed morning. The potential for
mixed precipitation (rain/snow) is in the forecast, with mostly
rainfall covering the coastal areas through at least Tue
afternoon/Tue evening. Over the Susitna Valley and Copper River
Basin, colder air will linger over the next couple days, with the
potential for snow through the forecast period.

&&

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

A storm over the North Pacific will lift northward across the
Alaska Peninsula late tonight, then weaken as it continues
northwestward across the eastern Bering Sea on Tuesday. This
will bring gusty winds and areas of light precipitation to the
Southwest Alaska coast. With a warm air mass in place, and
additional warming likely as the storm passes by, expect rain or
a mix of rain/snow in the Bristol Bay/Alaska Peninsula region and
snow or a mix of rain/snow along the Kuskokwim Delta coast. In
the wake of this surface low, an upper level short-wave trough
will lift northward across the region Tuesday night through
Wednesday. This will bring a better chance of precipitation,
especially to Bristol Bay. A slight cooling of the airmass will
lead to a transition back toward mostly snow. High pressure will
then build overhead Wednesday night and Thursday, leading to dry
conditions and cooler temperatures.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3/Tonight
through Thursday)...

A vertically stacked low will continue to spin over the central
to western Bering Sea through Wednesday, with a series of short-
waves rotating around the center. This will maintain a showery
pattern with locally gusty winds. Attention will then shift to a
major storm developing over the northwest Pacific. While there
remains some uncertainty in the exact track of this low, the
forecast is on track to bring widespread storm force winds to the
Aleutians and central Bering Sea Wednesday night through Thursday,
with a smaller area of hurricane-force winds likely on the south
side of the low center. There could be a period of snow and
blowing snow when precipitation first arrives Wednesday evening,
especially for Shemya, but expect winds and warm air advection to
warm up surface temperatures fairly quickly. A High Wind Warning
may eventually be needed for somewhere along the central to
western Aleutians, but that will depend heavily on the track of
the low center.

&&

.MARINE (Days 3 through 5: Thursday through Saturday)...

Gulf of Alaska:

Confidence is increasing with a deeper low moving into the Gulf on
Tuesday, which now looks to bring another round of gale force
winds along the north Gulf Coast. Afterwards conditions
throughout the Gulf will fall to small craft or below starting on
Wednesday, before the next gale force front skirts the southern
Gulf starting late Thursday.

Aleutians/Bering:

Model agreement and forecast confidence remains very good on the
track of an extremely deep low moving into the Western
Aleutians/Bering late Wednesday into Friday. Confidence is
greatest that this system will bring storm to potentially
hurricane force winds to most areas west of Dutch Harbor. This
system will also bring high seas to the region, which could reach
as high as 40-50 ft along the Pacific coast west of Adak. This
system looks to be the deepest low to move through the region
since the remnants of Typhoon Nuri in 2014, which nearly set the
North Pacific record for minimum central pressure.

&&

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

The remnants of the extremely deep, to potentially record
breaking Western Aleutian low will dominate the long term forecast
beginning on Friday. This may allow for a few weak lows to move
through the Gulf into this weekend, however at this point they
look to be centered far enough to the south to keep any
significant impacts away from the southern mainland. In general
though, model agreement and forecast confidence is below average
by late this week, largely due to significant uncertainty with the
remnants of the Bering low.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning: 119 120 130 131 150-160 170 172-174 176-178
					   180 411 414.

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...CB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...SEB
MARINE/LONG TERM...DEK

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 28, 3:34 PM AKSTGale WarningAFC12 hr
Dec 28, 3:34 PM AKSTSmall Craft AdvisoryAFC36 hr
Dec 29, 3:51 AM AKSTSmall Craft AdvisoryAFC60 hr
Dec 29, 4:28 AM AKSTBrisk Wind AdvisoryAFC11 hr
Dec 29, 4:28 AM AKSTGale WarningAFC11 hr
Dec 29, 2:53 PM AKSTGale WarningAFC13 hr
Dec 29, 2:53 PM AKSTStorm WarningAFC13 hr

Nearby

Small Craft Advisories in Alaska, 2020Every small craft advisory in 2020

Sources

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