Small Craft Advisory 993, NWS Anchorage, AK

987 
FZAK52 PAFC 230047
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
347 PM AKST Tue Dec 22 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.

PKZ199-231400-
347 PM AKST Tue Dec 22 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...A 955 mb low 220 nm
north of Nikolski Tue afternoon moves over Kipnuk Wed afternoon at 
975 mb and moves inland Wed night. A 980 mb low with multiple centers
moves to 210 nm west of Shemya Tue afternoon then moves to 110 nm 
north of Atka Thu afternoon. A North Pacific low moves to 220 nm 
southeast of Sand Point at 982 mb by Thu afternoon.

$$

PKZ150-231400-
South of the AK Peninsula Sitkinak to Castle Cape-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...SW wind 25 kt. Seas 18 ft.
.WED...SW wind 25 kt. Seas 18 ft.
.WED NIGHT...E wind 20 kt. Seas 14 ft. Rain.
.THU...E wind 30 kt. Seas 19 ft.
.THU NIGHT...S wind 25 kt. Seas 18 ft.
.FRI...W wind 15 kt. Seas 11 ft.
.SAT THROUGH SUN...S wind 30 kt. Seas 11 ft.

$$

PKZ155-231400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
347 PM AKST Tue Dec 22 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...SW wind increasing to 35 kt except SW 25 kt 
from the Shumagin Islands E. Seas 19 ft.
.WED...SW wind 35 kt diminishing to 25 kt in the afternoon. 
From the Shumagin Islands E, SW wind 25 kt. Seas 18 ft.
.WED NIGHT...Variable wind 10 kt becoming N 20 kt after midnight.
Seas 13 ft.
.THU...N wind 30 kt. Seas 12 ft.
.THU NIGHT...NW wind 25 kt. Seas 12 ft.
.FRI...NW wind 20 kt. Seas 12 ft.
.SAT...SE wind 35 kt. Seas 16 ft.
.SUN...S wind 25 kt. Seas 17 ft.

$$

PKZ160-231400-
Bristol Bay-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...S wind 20 kt. Seas 6 ft.
.WED...S wind 30 kt. Seas 10 ft.
.WED NIGHT...SW wind 20 kt in the evening becoming variable 
less than 10 kt. Seas 10 ft subsiding to 6 ft after midnight.
.THU...N wind 30 kt. Seas 6 ft.
.THU NIGHT...NE wind 25 kt. Seas 6 ft.
.FRI...NW wind 15 kt. Seas 5 ft.
.SAT THROUGH SUN...SE wind 30 kt. Seas 6 ft.

$$

PKZ165-231400-
Port Heiden to Cape Sarichef-
347 PM AKST Tue Dec 22 2020

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind increasing to 40 kt except S 30 kt from Port 
Moller E. Seas 19 ft except 12 ft from Port Moller E. Snow.
.WED...SW wind 35 kt. Seas 18 ft.
.WED NIGHT...W wind 20 kt in the evening becoming variable 10 kt.
Seas 10 ft.
.THU...N wind 30 kt. Seas 8 ft.
.THU NIGHT...N wind 25 kt. Seas 8 ft.
.FRI...NW wind 20 kt. Seas 11 ft.
.SAT...SE wind 35 kt. Seas 10 ft.
.SUN...SE wind 30 kt. Seas 10 ft.

$$

PKZ170-231400-
Cape Sarichef to Nikolski Bering Side-
347 PM AKST Tue Dec 22 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 22 ft. Snow and rain.
.WED...W wind 30 kt. Seas 18 ft.
.WED NIGHT...W wind 20 kt. Seas 12 ft.
.THU...SE wind 20 kt. Seas 8 ft.
.THU NIGHT...NE wind 15 kt. Seas 9 ft.
.FRI...NW wind 25 kt. Seas 13 ft.
.SAT...SE wind 40 kt. Seas 16 ft.
.SUN...S wind 30 kt. Seas 15 ft.

$$

PKZ171-231400-
Unalaska Bay-
347 PM AKST Tue Dec 22 2020

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SW wind 15 kt in the evening increasing to 30 kt. 
Seas 3 ft building to 5 ft after midnight. Snow.
.WED...W wind 25 kt. Seas 5 ft. Snow showers.
.WED NIGHT...NW wind 20 kt becoming W 10 kt after midnight. 
Seas 5 ft subsiding to 2 ft after midnight.
.THU...SE wind 10 kt. Seas 2 ft.
.THU NIGHT...NE wind 10 kt. Seas 3 ft.
.FRI...W wind 20 kt. Seas 5 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SUN...S wind 20 kt. Seas 3 ft.

$$

PKZ172-231400-
Cape Sarichef to Nikolski Pacific Side-
347 PM AKST Tue Dec 22 2020

...GALE WARNING TONIGHT...

.TONIGHT...SW wind increasing to 40 kt. Seas 20 ft.
.WED...W wind 30 kt. Seas 18 ft.
.WED NIGHT...NW wind 20 kt. Seas 12 ft.
.THU...S wind 20 kt. Seas 9 ft.
.THU NIGHT...NW wind 15 kt. Seas 13 ft.
.FRI...W wind 25 kt. Seas 16 ft.
.SAT...SE wind 35 kt. Seas 20 ft.
.SUN...S wind 30 kt. Seas 23 ft.

$$

PKZ173-231400-
Nikolski to Seguam Island Bering Side-
347 PM AKST Tue Dec 22 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 45 kt. Seas 25 ft. Snow and rain.
.WED...W wind 30 kt. Seas 19 ft.
.WED NIGHT...SW wind 20 kt. Seas 12 ft.
.THU...S wind 20 kt. Seas 10 ft.
.THU NIGHT...W wind 30 kt. Seas 20 ft.
.FRI...SW wind 30 kt. Seas 18 ft.
.SAT...SE wind 40 kt. Seas 20 ft.
.SUN...S wind 35 kt. Seas 17 ft.

$$

PKZ174-231400-
Nikolski to Seguam Island Pacific Side-
347 PM AKST Tue Dec 22 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 35 kt. Seas 21 ft. Snow.
.WED...W wind 30 kt. Seas 18 ft.
.WED NIGHT...W wind 20 kt. Seas 13 ft. Snow.
.THU...SW wind 20 kt. Seas 14 ft.
.THU NIGHT...W wind 35 kt. Seas 26 ft.
.FRI...SW wind 30 kt. Seas 24 ft.
.SAT...S wind 40 kt. Seas 26 ft.
.SUN...S wind 35 kt. Seas 29 ft.

$$

PKZ175-231400-
Seguam Island to Adak Bering Side-
347 PM AKST Tue Dec 22 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 45 kt becoming NW 30 kt after midnight. 
Seas 24 ft. Snow.
.WED...W wind 25 kt. Seas 16 ft.
.WED NIGHT...S wind 25 kt. Seas 11 ft. Snow.
.THU...W wind 40 kt. Seas 15 ft.
.THU NIGHT...W wind 40 kt. Seas 24 ft.
.FRI...S wind 30 kt. Seas 18 ft.
.SAT...SE wind 35 kt. Seas 19 ft.
.SUN...SW wind 35 kt. Seas 22 ft.

$$

PKZ176-231400-
Seguam Island to Adak Pacific Side-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...W wind 30 kt. Seas 16 ft.
.WED...W wind 25 kt. Seas 13 ft.
.WED NIGHT...SW wind 25 kt. Seas 12 ft. Snow.
.THU...W wind 35 kt. Seas 18 ft.
.THU NIGHT...W wind 40 kt. Seas 22 ft.
.FRI...S wind 30 kt. Seas 20 ft.
.SAT THROUGH SUN...SW wind 40 kt. Seas 36 ft.

$$

PKZ177-231400-
Adak to Kiska-
347 PM AKST Tue Dec 22 2020

...GALE WARNING WEDNESDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 18 ft.
.WED...W wind 25 kt. Seas 13 ft. Snow.
.WED NIGHT...S wind 35 kt. Seas 17 ft. Snow.
.THU AND THU NIGHT...W wind 40 kt. Seas 20 ft.
.FRI...SE wind 30 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 40 kt. Seas 41 ft.

$$

PKZ178-231400-
Kiska to Attu-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...W wind 30 kt. Seas 16 ft. Freezing spray. Snow.
.WED...SW wind 30 kt. Seas 14 ft. Freezing spray. Snow.
.WED NIGHT...W wind 30 kt. Seas 17 ft. Freezing spray. Snow.
.THU...NW wind 30 kt. Seas 17 ft.
.THU NIGHT...S wind 25 kt. Seas 13 ft.
.FRI...SE wind 30 kt. Seas 17 ft.
.SAT THROUGH SUN...W wind 40 kt. Seas 30 ft.

$$

PKZ179-231400-
Pribilof Islands Near Shore Waters-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...SE wind 20 kt becoming NW 30 kt after midnight. 
Seas 13 ft. Freezing spray after midnight. Snow and rain...
then snow after midnight.
.WED...NW wind 30 kt. Seas 13 ft. Freezing spray.
.WED NIGHT...W wind 20 kt. Seas 10 ft.
.THU...SE wind 25 kt. Seas 8 ft.
.THU NIGHT...E wind 20 kt. Seas 8 ft.
.FRI...N wind 25 kt. Seas 9 ft.
.SAT...E wind 35 kt. Seas 21 ft.
.SUN...SE wind 30 kt. Seas 17 ft.

$$

PKZ180-231400-
Kuskokwim Delta and Etolin Strait-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...SE wind 30 kt. Seas in ice free waters 10 ft.
.WED...S wind 30 kt. Seas in ice free waters 13 ft. Snow.
.WED NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Seas in ice free waters 11 ft subsiding to 7 ft after midnight.
.THU AND THU NIGHT...N wind 25 kt. Seas in ice free waters 6 ft.
.FRI...NW wind 20 kt. Seas in ice free waters 6 ft.
.SAT...E wind 35 kt. Seas in ice free waters 13 ft.
.SUN...SE wind 30 kt. Seas in ice free waters 13 ft.

$$

PKZ181-231400-
North and West of Nunivak Island-
347 PM AKST Tue Dec 22 2020

...BRISK WIND ADVISORY WEDNESDAY NIGHT...

.TONIGHT...SE wind 20 kt.
.WED...E wind 20 kt becoming NW in the afternoon.
Snow.
.WED NIGHT...W wind 25 kt diminishing to 15 kt after midnight.
Freezing spray.
.THU...S wind 15 kt.
.THU NIGHT...NE wind 15 kt.
.FRI...N wind 20 kt.
.SAT...E wind 35 kt.
.SUN...E wind 30 kt.

$$

PKZ185-231400-
Saint Matthew Island Waters-
347 PM AKST Tue Dec 22 2020

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

.TONIGHT...NW wind 25 kt E of Saint Matthew Island...NW 30 kt 
W of Saint Matthew Island. Seas 16 ft. Freezing spray. Snow.
.WED...NW wind 25 kt. Seas 11 ft. Freezing spray.
.WED NIGHT...SW wind 20 kt. Seas 8 ft. Freezing spray.
.THU...S wind 20 kt. Seas 6 ft.
.THU NIGHT...SE wind 15 kt. Seas 8 ft.
.FRI...NE wind 30 kt. Seas 8 ft.
.SAT THROUGH SUN...NE wind 40 kt. Seas 25 ft.

$$

059 
FZAK52 PAFC 231256
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
356 AM AKST Wed Dec 23 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.

PKZ199-240145-
356 AM AKST Wed Dec 23 2020

.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 965 mb low 70 nm southeast of Saint Paul moves onshore over Kipnuk
at 979 mb by Wed evening. A 974 mb Kamchatka low 360 nm west of Attu
develops into a broad, complex 978 mb centered 165 nm east of Attu 
by Thu morning then moves to 50 nm west of Nikolski at 990 mb by Fri 
morning. A 981 mb low moves north across the AKPEN and enters Bristol
Bay for Fri morning.

$$

PKZ150-240145-
South of the AK Peninsula Sitkinak to Castle Cape-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...SW wind 10 kt early increasing to 20 kt. Seas 16 ft.
.TONIGHT...S wind 20 kt. Seas 14 ft. Rain and snow.
.THU...E wind 30 kt. W of Chirikof Island, NE wind 30 kt becoming NW
in the afternoon. Seas 14 ft. Widespread rain and snow showers.
.THU NIGHT...SW wind 30 kt. Seas 15 ft.
.FRI...SW wind 25 kt. Seas 12 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SUN...SE wind 30 kt. Seas 19 ft.

$$

PKZ155-240145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
356 AM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY...

.TODAY...SW wind 30 kt diminishing to 20 kt in the afternoon. Seas
16 ft.
.TONIGHT...SW wind 20 kt in the evening becoming N 25 kt. Seas 14 
ft.
.THU...N wind 30 kt except N 35 kt from the Shumagin Islands E.
Seas 11 ft.
.THU NIGHT...NW wind 25 kt. Seas 10 ft.
.FRI...W wind 35 kt. Seas 13 ft.
.SAT...S wind 35 kt. Seas 20 ft.
.SUN...SE wind 30 kt. Seas 19 ft.

$$

PKZ160-240145-
Bristol Bay-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...S wind 20 kt early increasing to 30 kt. Seas 8 ft.
.TONIGHT...S wind 25 kt becoming NW 15 kt after midnight. Seas 8 ft.
.THU...N wind 25 kt. Seas 6 ft.
.THU NIGHT...N wind 25 kt. Seas 6 ft.
.FRI...SE wind 20 kt. Seas 7 ft.
.SAT THROUGH SUN...E wind 30 kt. Seas 8 ft.

$$

PKZ165-240145-
Port Heiden to Cape Sarichef-
356 AM AKST Wed Dec 23 2020

...GALE WARNING TODAY...

.TODAY...S wind 40 kt becoming W 30 kt. Seas 16 ft. Snow and rain 
showers.
.TONIGHT...NW wind 20 kt. Seas 13 ft.
.THU...NE wind 15 kt except N 25 kt from Port Moller E. Seas 9 ft.
.THU NIGHT...N wind 25 kt. Seas 7 ft.
.FRI...NW wind 40 kt. Seas 13 ft.
.SAT...SE wind 30 kt. Seas 11 ft.
.SUN...SE wind 25 kt. Seas 10 ft.

$$

PKZ170-240145-
Cape Sarichef to Nikolski Bering Side-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 30 kt. Seas 19 ft. Snow showers.
.TONIGHT...W wind 25 kt. Seas 14 ft.
.THU...SE wind 30 kt. Seas 8 ft.
.THU NIGHT...NE wind 25 kt. Seas 10 ft.
.FRI...W wind 35 kt. Seas 14 ft.
.SAT...SE wind 40 kt. Seas 17 ft.
.SUN...S wind 25 kt. Seas 17 ft.

$$

PKZ171-240145-
Unalaska Bay-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...W wind 25 kt. Seas 4 ft building to 10 ft in the afternoon.
Widespread snow showers.
.TONIGHT...NW wind 25 kt becoming W 10 kt after midnight. Seas 7 ft 
subsiding to 2 ft after midnight.
.THU...SE wind 20 kt. Seas 3 ft.
.THU NIGHT...E wind 25 kt. Seas 4 ft.
.FRI...W wind 30 kt. Seas 8 ft.
.SAT...SE wind 30 kt. Seas 5 ft.
.SUN...S wind 15 kt. Seas 2 ft.

$$

PKZ172-240145-
Cape Sarichef to Nikolski Pacific Side-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...W wind 30 kt. Seas 16 ft.
.TONIGHT...NW wind 25 kt. Seas 13 ft.
.THU...S wind 30 kt. Seas 9 ft.
.THU NIGHT...E wind 20 kt. Seas 14 ft.
.FRI...W wind 35 kt. Seas 17 ft.
.SAT...S wind 40 kt. Seas 25 ft.
.SUN...S wind 25 kt. Seas 25 ft.

$$

PKZ173-240145-
Nikolski to Seguam Island Bering Side-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NW wind 30 kt. Seas 19 ft.
.TONIGHT...S wind 25 kt. Seas 12 ft.
.THU...S wind 30 kt becoming SW 20 kt in the afternoon. Seas 11 ft. 
Snow.
.THU NIGHT...NW wind 30 kt. Seas 23 ft.
.FRI...S wind 35 kt. Seas 23 ft.
.SAT...S wind 40 kt. Seas 26 ft.
.SUN...S wind 30 kt. Seas 23 ft.

$$

PKZ174-240145-
Nikolski to Seguam Island Pacific Side-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NW wind 30 kt. Seas 18 ft. Snow showers.
.TONIGHT...W wind 15 kt becoming S 30 kt after midnight. Seas 12 ft.
Snow.
.THU...S wind 30 kt. Seas 14 ft. Snow.
.THU NIGHT...NW wind 35 kt. Seas 23 ft.
.FRI...SW wind 40 kt. Seas 23 ft.
.SAT...S wind 40 kt. Seas 32 ft.
.SUN...S wind 25 kt. Seas 28 ft.

$$

PKZ175-240145-
Seguam Island to Adak Bering Side-
356 AM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY...

.TODAY...W wind 30 kt. Seas 17 ft.
.TONIGHT...S wind 30 kt. Seas 10 ft. Snow.
.THU...SW wind 30 kt becoming W 40 kt in the afternoon. Seas 11 ft
building to 18 ft in the afternoon. Snow.
.THU NIGHT...NW wind 50 kt. Seas 23 ft.
.FRI THROUGH SAT...S wind 35 kt. Seas 21 ft.
.SUN...SW wind 30 kt. Seas 21 ft.

$$

PKZ176-240145-
Seguam Island to Adak Pacific Side-
356 AM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...SW wind 30 kt. Seas 14 ft. Snow.
.THU...SW wind 30 kt becoming W 45 kt in the afternoon. Seas 19 ft. 
Snow.
.THU NIGHT...NW wind 50 kt. Seas 20 ft.
.FRI...S wind 40 kt. Seas 18 ft.
.SAT...S wind 40 kt. Seas 34 ft.
.SUN...SW wind 30 kt. Seas 28 ft.

$$

PKZ177-240145-
Adak to Kiska-
356 AM AKST Wed Dec 23 2020

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...W wind 25 kt. Seas 13 ft.
.TONIGHT...SW wind 35 kt. Seas 11 ft Bering side... 18 ft Pacific 
side. Snow.
.THU...W wind 45 kt. Seas 16 ft Bering side...20 ft Pacific side. 
Snow showers.
.THU NIGHT...W wind 45 kt. Seas 18 ft.
.FRI...S wind 40 kt. Seas 17 ft.
.SAT...S wind 40 kt. Seas 26 ft.
.SUN...S wind 30 kt. Seas 24 ft.

$$

PKZ178-240145-
Kiska to Attu-
356 AM AKST Wed Dec 23 2020

...GALE WARNING THROUGH THURSDAY...

.TODAY...SW wind 35 kt. Seas 14 ft. Freezing spray. Snow showers.
.TONIGHT...W wind 35 kt. Seas 18 ft. Freezing spray. Snow.
.THU...NW wind 40 kt. Seas 17 ft. Freezing spray.
.THU NIGHT...S wind 35 kt. Seas 12 ft.
.FRI...SW wind 40 kt. Seas 17 ft.
.SAT THROUGH SUN...SW wind 35 kt. Seas 28 ft.

$$

PKZ179-240145-
Pribilof Islands Near Shore Waters-
356 AM AKST Wed Dec 23 2020

...GALE WARNING TODAY...

.TODAY...NW wind 35 kt. Seas 15 ft. Freezing spray. Snow showers.
.TONIGHT...S wind 25 kt. Seas 11 ft.
.THU...S wind 25 kt. Seas 9 ft. Freezing spray.
.THU NIGHT...E wind 20 kt. Seas 10 ft.
.FRI...NW wind 25 kt. Seas 10 ft.
.SAT...SE wind 40 kt. Seas 22 ft.
.SUN...SE wind 25 kt. Seas 22 ft.

$$

PKZ180-240145-
Kuskokwim Delta and Etolin Strait-
356 AM AKST Wed Dec 23 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 25 kt early increasing to 35 kt. Seas 12 ft.
.TONIGHT...W wind 35 kt diminishing to 25 kt after midnight. Seas
12 ft.
.THU...W wind 15 kt becoming E in the afternoon. Seas 7 ft.
.THU NIGHT...N wind 30 kt. Seas 7 ft.
.FRI...N wind 35 kt. Seas 8 ft.
.SAT...SE wind 35 kt. Seas 14 ft.
.SUN...SE wind 30 kt. Seas 14 ft.

$$

PKZ181-240145-
North and West of Nunivak Island-
356 AM AKST Wed Dec 23 2020

...BRISK WIND ADVISORY THROUGH TONIGHT...

.TODAY...SE wind 20 kt becoming NE 30 kt in the afternoon.
.TONIGHT...NW wind 25 kt. Freezing spray.
.THU...S wind 20 kt.
.THU NIGHT...E wind 20 kt.
.FRI...N wind 25 kt.
.SAT THROUGH SUN...E wind 35 kt.

$$

PKZ185-240145-
Saint Matthew Island Waters-
356 AM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TODAY...NW wind 30 kt E of Saint Matthew Island...NW 20 kt W of 
Saint Matthew Island. Seas 11 ft. Freezing spray.
.TONIGHT...W wind 25 kt E of Saint Matthew Island...S 20 kt W of
Saint Matthew Island. Seas 7 ft. Freezing spray.
.THU...S wind 25 kt. Seas 7 ft. Freezing spray.
.THU NIGHT...S wind 20 kt. Seas 10 ft.
.FRI...E wind 30 kt. Seas 9 ft.
.SAT...E wind 45 kt. Seas 26 ft.
.SUN...E wind 40 kt. Seas 26 ft.

$$

738 
FZAK52 PAFC 240053
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
353 PM AKST Wed Dec 23 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.

PKZ199-241345-
353 PM AKST Wed Dec 23 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...A 975 mb low 60 nm
southwest of Kipnuk moves onshore at 979 mb by Wed evening. A 980 mb
low with multiple centers 70 nm north of Attu moves to 170 nm north 
of Atka at 979 mb Thu afternoon then crosses the Aleutians at 990 mb 
near Unalaska Island Fri morning. A 980 mb North Pacific low 260 nm 
southeast of Chignik Thu afternoon moves north across the Alaska
Peninsula near Pilot Point at 985 mb by Fri afternoon.

$$

PKZ150-241345-
South of the AK Peninsula Sitkinak to Castle Cape-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...S wind 20 kt. Seas 14 ft.
.THU...NE wind 30 kt. Seas 13 ft. Rain with snow.
.THU NIGHT...N wind 30 kt becoming W after midnight. Seas 14 ft.
Rain.
.FRI...W wind 25 kt. Seas 11 ft.
.FRI NIGHT...W wind 20 kt. Seas 9 ft.
.SAT...SW wind 30 kt. Seas 13 ft.
.SUN...SE wind 30 kt. Seas 19 ft.
.MON...SE wind 20 kt. Seas 19 ft.

$$

PKZ155-241345-
South of the AK Peninsula Castle Cape to Cape Sarichef-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...W wind 25 kt except SW 15 kt from the Shumagin Islands
E. Seas 14 ft.
.THU...N wind 20 kt except N 30 kt from the Shumagin Islands E.
Seas 10 ft.
.THU NIGHT...N wind 20 kt. From the Shumagin Islands E, NW wind
30 kt diminishing to 20 kt after midnight. Seas 9 ft.
.FRI...NW wind 20 kt. Seas 11 ft.
.FRI NIGHT...NW wind 25 kt. Seas 13 ft.
.SAT...S wind 35 kt. Seas 20 ft.
.SUN...SE wind 30 kt. Seas 19 ft.
.MON...SE wind 20 kt. Seas 21 ft.

$$

PKZ160-241345-
Bristol Bay-
353 PM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY TONIGHT AND THURSDAY NIGHT...

.TONIGHT...S wind 25 kt becoming SW 15 kt after midnight. Seas 8
ft. Freezing spray.
.THU...N wind 20 kt. Seas 7 ft.
.THU NIGHT...N wind 25 kt. Seas 5 ft. Freezing spray.
.FRI AND FRI NIGHT...W wind 20 kt. Seas 5 ft.
.SAT...S wind 30 kt. Seas 7 ft.
.SUN...E wind 30 kt. Seas 8 ft.
.MON...E wind 20 kt. Seas 8 ft.

$$

PKZ165-241345-
Port Heiden to Cape Sarichef-
353 PM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...W wind 25 kt. Seas 13 ft.
.THU...NW wind 15 kt becoming NE in the afternoon. Seas 9 ft.
.THU NIGHT...NE wind 20 kt. Seas 6 ft. Freezing spray.
.FRI...NW wind 25 kt. Seas 12 ft.
.FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT...SE wind 30 kt. Seas 11 ft.
.SUN...SE wind 25 kt. Seas 10 ft.
.MON...E wind 20 kt. Seas 17 ft.

$$

PKZ170-241345-
Cape Sarichef to Nikolski Bering Side-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...NW wind 25 kt. Seas 13 ft.
.THU...SE wind 30 kt. Seas 8 ft. Snow.
.THU NIGHT...S wind 30 kt. Seas 8 ft building to 14 ft after
midnight.
.FRI...NE wind 25 kt. Seas 20 ft.
.FRI NIGHT...W wind 20 kt. Seas 18 ft.
.SAT...SE wind 45 kt. Seas 17 ft.
.SUN...S wind 25 kt. Seas 17 ft.
.MON...E wind 15 kt. Seas 19 ft.

$$

PKZ171-241345-
Unalaska Bay-
353 PM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY THROUGH THURSDAY...

.TONIGHT...NW wind 25 kt becoming SW 15 kt after midnight. Seas
5 ft.
.THU...S wind 20 kt becoming SE 30 kt in the afternoon. Seas 4 ft.
Snow.
.THU NIGHT...SW wind 15 kt. Seas 2 ft. Snow.
.FRI...NE wind 15 kt. Seas 5 ft.
.FRI NIGHT...W wind 15 kt. Seas 5 ft.
.SAT...SE wind 35 kt. Seas 5 ft.
.SUN...S wind 15 kt. Seas 2 ft.
.MON...SE wind 10 kt. Seas 2 ft.

$$

PKZ172-241345-
Cape Sarichef to Nikolski Pacific Side-
353 PM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 12 ft.
.THU...S wind 30 kt. Seas 10 ft. Snow.
.THU NIGHT...SW wind 20 kt increasing to 35 kt after midnight.
Seas 13 ft.
.FRI...NW wind 35 kt. Seas 17 ft.
.FRI NIGHT...W wind 25 kt. Seas 15 ft.
.SAT...S wind 40 kt. Seas 25 ft.
.SUN...S wind 25 kt. Seas 25 ft.
.MON...S wind 20 kt. Seas 18 ft.

$$

PKZ173-241345-
Nikolski to Seguam Island Bering Side-
353 PM AKST Wed Dec 23 2020

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...W wind 15 kt early becoming S wind 25 kt. Seas 12 ft. 
Snow.
.THU...S wind 35 kt. Seas 14 ft. Snow showers.
.THU NIGHT...W wind 50 kt. Seas 18 ft building to 24 ft after
midnight. Snow showers.
.FRI...NW wind 50 kt. Seas 23 ft.
.FRI NIGHT...SE wind 35 kt. Seas 17 ft.
.SAT...S wind 45 kt. Seas 26 ft.
.SUN...S wind 30 kt. Seas 23 ft.
.MON...W wind 15 kt. Seas 14 ft.

$$

PKZ174-241345-
Nikolski to Seguam Island Pacific Side-
353 PM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 15 kt early becoming S wind 25 kt. Seas 12 ft. 
Snow.
.THU...S wind 30 kt. Seas 14 ft. Snow showers.
.THU NIGHT...W wind 45 kt. Seas 21 ft. Snow showers.
.FRI...W wind 50 kt. Seas 20 ft.
.FRI NIGHT...S wind 40 kt. Seas 14 ft.
.SAT...S wind 40 kt. Seas 32 ft.
.SUN...S wind 25 kt. Seas 28 ft.
.MON...W wind 25 kt. Seas 17 ft.

$$

PKZ175-241345-
Seguam Island to Adak Bering Side-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...S wind increasing to 30 kt. Seas 11 ft. Snow.
.THU...W wind 45 kt. Seas 13 ft building to 19 ft in the
afternoon. Snow.
.THU NIGHT...NW wind 45 kt. Seas 23 ft. Snow.
.FRI...W wind 45 kt. Seas 19 ft.
.FRI NIGHT...SE wind 50 kt. Seas 13 ft.
.SAT...S wind 50 kt. Seas 21 ft.
.SUN...SW wind 30 kt. Seas 21 ft.
.MON...SW wind 15 kt. Seas 17 ft.

$$

PKZ176-241345-
Seguam Island to Adak Pacific Side-
353 PM AKST Wed Dec 23 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 25 kt increasing to 40 kt after midnight. 
Seas 14 ft. Snow.
.THU...SW wind 35 kt. Seas 18 ft. Snow.
.THU NIGHT...W wind 45 kt. Seas 19 ft. Snow.
.FRI...W wind 40 kt. Seas 16 ft.
.FRI NIGHT...SE wind 40 kt. Seas 15 ft.
.SAT...S wind 40 kt. Seas 34 ft.
.SUN...SW wind 30 kt. Seas 28 ft.
.MON...SW wind 25 kt. Seas 18 ft.

$$

PKZ177-241345-
Adak to Kiska-
353 PM AKST Wed Dec 23 2020

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt becoming W 40 kt after midnight. 
Seas 15 ft. Snow.
.THU...W wind 35 kt. Seas 19 ft. Snow.
.THU NIGHT...NW wind 35 kt. Seas 18 ft.
.FRI...SE wind 40 kt. Seas 11 ft.
.FRI NIGHT...E wind 55 kt. Seas 19 ft.
.SAT...S wind 50 kt. Seas 26 ft.
.SUN...S wind 30 kt. Seas 24 ft.
.MON...SW wind 25 kt. Seas 23 ft.

$$

PKZ178-241345-
Kiska to Attu-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...W wind 30 kt. Seas 17 ft. Freezing spray. Snow showers.
.THU...NW wind 30 kt. Seas 17 ft. Freezing spray.
.THU NIGHT...S wind 25 kt. Seas 12 ft. Freezing spray.
.FRI...SE wind 45 kt. Seas 11 ft.
.FRI NIGHT...E wind 50 kt. Seas 25 ft.
.SAT...SE wind 55 kt. Seas 26 ft.
.SUN...SW wind 35 kt. Seas 29 ft.
.MON...SW wind 25 kt. Seas 26 ft.

$$

PKZ179-241345-
Pribilof Islands Near Shore Waters-
353 PM AKST Wed Dec 23 2020

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 10 ft.
.THU...S wind 20 kt becoming SE 30 kt in the afternoon. 
Seas 10 ft. Freezing spray.
.THU NIGHT...E wind 35 kt. Seas 11 ft.
.FRI...NE wind 25 kt. Seas 13 ft.
.FRI NIGHT...E wind 15 kt. Seas 10 ft.
.SAT...SE wind 40 kt. Seas 22 ft.
.SUN...SE wind 25 kt. Seas 22 ft.
.MON...E wind 15 kt. Seas 13 ft.

$$

PKZ180-241345-
Kuskokwim Delta and Etolin Strait-
353 PM AKST Wed Dec 23 2020

...GALE WARNING TONIGHT...

.TONIGHT...W wind 35 kt. Along the coast, S wind 35 kt diminishing 
to 25 kt after midnight. Seas 11 ft. Freezing spray and areas of 
freezing fog.
.THU...W wind 15 kt becoming E in the afternoon. Seas 7 ft.
.THU NIGHT...N wind 30 kt. Seas 5 ft. Freezing spray.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas 8 ft.
.SAT...SE wind 35 kt. Seas 14 ft.
.SUN...SE wind 30 kt. Seas 14 ft.
.MON...E wind 20 kt. Seas 11 ft.

$$

PKZ181-241345-
North and West of Nunivak Island-
353 PM AKST Wed Dec 23 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NW wind 30 kt...except NE along the coast in the evening.
Seas in ice free waters 6 ft. Freezing spray.
.THU...SW wind 15 kt. Seas in ice free waters 3 ft.
.THU NIGHT...E wind 15 kt. Seas in ice free waters 3 ft.
.FRI AND FRI NIGHT...N wind 25 kt. Seas in ice free waters 4 ft.
.SAT THROUGH SUN...E wind 35 kt. Seas in ice free waters 2 ft.
.MON...E wind 20 kt. Seas in ice free waters 2 ft.

$$

PKZ185-241345-
Saint Matthew Island Waters-
353 PM AKST Wed Dec 23 2020

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

.TONIGHT...E of Saint Matthew Island, NW wind 25 kt. W of Saint
Matthew Island, SW wind 20 kt becoming SE 30 kt after midnight.
Seas 7 ft. Freezing spray.
.THU...S wind 30 kt. Seas 8 ft. Freezing spray.
.THU NIGHT...SE wind 20 kt E of Saint Matthew Island...N 30 kt 
W of Saint Matthew Island. Seas 11 ft. Freezing spray.
.FRI...N wind 25 kt. Seas 11 ft.
.FRI NIGHT...NE wind 30 kt. Seas 9 ft.
.SAT...E wind 45 kt. Seas 26 ft.
.SUN...E wind 40 kt. Seas 26 ft.
.MON...E wind 20 kt. Seas 16 ft.

$$

147 
FZAK52 PAFC 241251
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
351 AM AKST Thu Dec 24 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.

PKZ199-250145-
351 AM AKST Thu Dec 24 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Thursday morning there is a 977 mb low complex 170 nm northeast 
of Attu. The front will push eastward across the Aleutians. Friday 
morning the main low will be 100 nm west of the Pribilof Islands and 
a second low along the front will be near Dutch Harbor with an 
intensity of 992 mb. There is another low near Kodiak at 985 mb 
Friday morning. This low will move north into Bristol Bay Fri evening
at 987 mb. 

$$

PKZ150-250145-
South of the AK Peninsula Sitkinak to Castle Cape-
351 AM AKST Thu Dec 24 2020

...GALE WARNING THROUGH TONIGHT...

.TODAY...Variable wind up to 15 kt early becoming NE 35 kt. Seas
building to 13 ft. Rain.
.TONIGHT...E of Chirikof Island, SE wind 25 kt. W of Chirikof 
Island, NW wind 35 kt diminishing to 25 kt after midnight. Seas 14 
ft. Rain.
.FRI...W wind 25 kt. Seas 11 ft.
.FRI NIGHT...W wind 20 kt. Seas 9 ft.
.SAT THROUGH SUN...S wind 45 kt. Seas 16 ft.
.MON...SE wind 25 kt. Seas 14 ft.

$$

PKZ155-250145-
South of the AK Peninsula Castle Cape to Cape Sarichef-
351 AM AKST Thu Dec 24 2020

...GALE WARNING TONIGHT...

.TODAY...N wind 25 kt except N 30 kt from the Shumagin Islands E.
Seas 10 ft.
.TONIGHT...NW wind 20 kt. From the Shumagin Islands E, NW wind 35
kt diminishing to 20 kt after midnight. Seas 9 ft.
.FRI...NW wind 25 kt. Seas 11 ft.
.FRI NIGHT...NW wind 25 kt. Seas 13 ft.
.SAT THROUGH SUN...S wind 45 kt. Seas 19 ft.
.MON...S wind 30 kt. Seas 20 ft.

$$

PKZ160-250145-
Bristol Bay-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY TONIGHT...

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...N wind 30 kt diminishing to 20 kt after midnight. Seas 5 
ft. Freezing spray. Snow.
.FRI...N wind 15 kt. Seas 4 ft. Freezing spray. Snow.
.FRI NIGHT...NW wind 20 kt. Seas 6 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas 9 ft.
.MON...SE wind 30 kt. Seas 6 ft.

$$

PKZ165-250145-
Port Heiden to Cape Sarichef-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY TODAY AND FRIDAY...

.TODAY...NW wind 15 kt becoming NE in the afternoon. Seas 9 ft.
.TONIGHT...NE wind 20 kt. Seas 6 ft.
.FRI...NW wind 25 kt. Seas 7 ft building to 12 ft in the
afternoon.
.FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT THROUGH SUN...S wind 45 kt. Seas 11 ft.
.MON...SE wind 30 kt. Seas 9 ft.

$$

PKZ170-250145-
Cape Sarichef to Nikolski Bering Side-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 30 kt. Seas 8 ft. Snow showers.
.TONIGHT...E of Dutch Harbor, SE wind 25 kt becoming variable 10 kt
after midnight. W of Dutch Harbor, SW wind 25 kt becoming NW after
midnight. Seas 8 ft building to 13 ft after midnight.
.FRI...NW wind 30 kt, except variable wind 10 kt E of Dutch Harbor 
Seas 20 ft, except seas 15 ft E of Dutch Harbor.
.FRI NIGHT...NE wind 20 kt. Seas 18 ft.
.SAT...SE wind 45 kt. Seas 14 ft.
.SUN THROUGH MON...S wind 35 kt. Seas 15 ft.

$$

PKZ171-250145-
Unalaska Bay-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY TODAY...

.TODAY...S wind 20 kt becoming SE 30 kt in the afternoon. Seas 3
ft.
.TONIGHT...SW wind 20 kt diminishing to 10 kt after midnight. Seas 2
ft. Snow showers.
.FRI...SW wind 10 kt. Seas 3 ft.
.FRI NIGHT...N wind 10 kt. Seas 3 ft.
.SAT...SE wind 40 kt. Seas 3 ft.
.SUN THROUGH MON...S wind 25 kt. Seas 4 ft.

$$

PKZ172-250145-
Cape Sarichef to Nikolski Pacific Side-
351 AM AKST Thu Dec 24 2020

...GALE WARNING FRIDAY...

.TODAY...S wind 30 kt. Seas 10 ft. Widespread snow showers.
.TONIGHT...SW wind 20 kt becoming W 30 kt after midnight. Seas
13 ft.
.FRI...W wind 40 kt. Seas 17 ft.
.FRI NIGHT...W wind 25 kt. Seas 15 ft.
.SAT...S wind 40 kt. Seas 19 ft.
.SUN THROUGH MON...S wind 40 kt. Seas 25 ft.

$$

PKZ173-250145-
Nikolski to Seguam Island Bering Side-
351 AM AKST Thu Dec 24 2020

...STORM WARNING TONIGHT AND FRIDAY...

.TODAY...S wind 30 kt. Seas 13 ft. Snow showers.
.TONIGHT...SW wind 40 kt becoming W 50 kt after midnight. Seas 17
ft building to 23 ft after midnight. Snow showers.
.FRI...W wind 50 kt diminishing to 35 kt in the afternoon. Seas
23 ft subsiding to 19 ft in the afternoon.
.FRI NIGHT...S wind 40 kt. Seas 17 ft.
.SAT...S wind 50 kt. Seas 20 ft.
.SUN...SE wind 30 kt. Seas 17 ft.
.MON...S wind 35 kt. Seas 17 ft.

$$

PKZ174-250145-
Nikolski to Seguam Island Pacific Side-
351 AM AKST Thu Dec 24 2020

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...S wind 30 kt. Seas 14 ft. Widespread snow showers.
.TONIGHT...W wind 40 kt. Seas 21 ft. Snow showers.
.FRI...W wind 45 kt diminishing to 35 kt in the afternoon. Seas 20 
ft subsiding to 16 ft in the afternoon.
.FRI NIGHT...S wind 35 kt. Seas 14 ft.
.SAT...S wind 45 kt. Seas 29 ft.
.SUN THROUGH MON...S wind 40 kt. Seas 29 ft.

$$

PKZ175-250145-
Seguam Island to Adak Bering Side-
351 AM AKST Thu Dec 24 2020

...STORM WARNING TONIGHT...

.TODAY...SW wind 30 kt becoming W 45 kt in the afternoon. Seas 12
ft building to 17 ft in the afternoon. Snow showers.
.TONIGHT...NW wind 50 kt. Seas 21 ft. Snow showers.
.FRI...W wind 45 kt diminishing to 20 kt in the afternoon. Seas 19 
ft subsiding to 12 ft in the afternoon.
.FRI NIGHT...SE wind 45 kt. Seas 13 ft.
.SAT...S wind 50 kt. Seas 21 ft.
.SUN...S wind 35 kt. Seas 21 ft.
.MON...S wind 25 kt. Seas 14 ft.

$$

PKZ176-250145-
Seguam Island to Adak Pacific Side-
351 AM AKST Thu Dec 24 2020

...GALE WARNING THROUGH FRIDAY...

.TODAY...W wind 35 kt. Seas 18 ft. Widespread snow showers.
.TONIGHT...W wind 40 kt. Seas 19 ft. Snow showers.
.FRI...W wind 40 kt becoming SW 25 kt in the afternoon. Seas 16 ft
subsiding to 11 ft in the afternoon.
.FRI NIGHT...SE wind 45 kt. Seas 16 ft.
.SAT...S wind 45 kt. Seas 35 ft.
.SUN...S wind 40 kt. Seas 35 ft.
.MON...SW wind 30 kt. Seas 28 ft.

$$

PKZ177-250145-
Adak to Kiska-
351 AM AKST Thu Dec 24 2020

...GALE WARNING THROUGH FRIDAY...

.TODAY...NW wind 40 kt. Seas 19 ft. Widespread snow showers.
.TONIGHT...NW wind 40 kt diminishing to 25 kt after midnight. Seas 
18 ft subsiding to 11 ft after midnight.
.FRI...S wind 30 kt becoming SE 40 kt in the afternoon. Seas 11
ft. Rain.
.FRI NIGHT...SE wind 50 kt. Seas 20 ft.
.SAT THROUGH SUN...S wind 50 kt. Seas 38 ft.
.MON...SW wind 30 kt. Seas 26 ft.

$$

PKZ178-250145-
Kiska to Attu-
351 AM AKST Thu Dec 24 2020

...GALE WARNING TODAY AND FRIDAY...

.TODAY...NW wind 35 kt. Seas 17 ft. Freezing spray.
.TONIGHT...SW wind 20 kt. Seas 12 ft.
.FRI...SE wind 30 kt becoming E 40 kt in the afternoon. Seas 11
ft. Snow and rain.
.FRI NIGHT...E wind 50 kt. Seas 25 ft.
.SAT...NW wind 50 kt. Seas 32 ft.
.SUN...NW wind 45 kt. Seas 32 ft.
.MON...W wind 30 kt. Seas 22 ft.

$$

PKZ179-250145-
Pribilof Islands Near Shore Waters-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 30 kt. Seas 10 ft. Freezing spray.
.TONIGHT...SE wind 30 kt. Seas 11 ft.
.FRI...E wind 25 kt becoming NE 15 kt in the afternoon. Seas 13
ft.
.FRI NIGHT...NE wind 15 kt. Seas 10 ft.
.SAT...E wind 45 kt. Seas 18 ft.
.SUN...SE wind 25 kt. Seas 18 ft.
.MON...SE wind 35 kt. Seas 21 ft.

$$

PKZ180-250145-
Kuskokwim Delta and Etolin Strait-
351 AM AKST Thu Dec 24 2020

...HEAVY FREEZING SPRAY WARNING FRIDAY...
...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY...

.TODAY...W wind 15 kt becoming E in the afternoon. Seas 7 ft.
.TONIGHT...E 15 kt in the evening becoming N 30 kt. Seas 5 ft. 
Freezing spray.
.FRI...N wind 30 kt. Seas 7 ft. Heavy freezing spray.
.FRI NIGHT...NW wind 30 kt. Seas 8 ft.
.SAT THROUGH SUN...SE wind 40 kt. Seas 13 ft.
.MON...SE wind 30 kt. Seas 10 ft.

$$

PKZ181-250145-
North and West of Nunivak Island-
351 AM AKST Thu Dec 24 2020

...HEAVY FREEZING SPRAY WARNING FRIDAY...

.TODAY...SW wind 15 kt becoming SE in the after noon. Seas in ice 
free waters 3 ft.
.TONIGHT...SE wind 15 kt becoming NE after midnight. Seas in ice 
free waters 3 ft. Freezing spray.
.FRI...N wind 20 kt. Seas in ice free waters 3 ft. Heavy freezing
spray.
.FRI NIGHT...N wind 20 kt. Seas in ice free waters 4 ft.
.SAT THROUGH SUN...E wind 40 kt. Seas in ice free waters 6 ft.
.MON...E wind 30 kt. Seas in ice free waters 7 ft.

$$

PKZ185-250145-
Saint Matthew Island Waters-
351 AM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY THROUGH FRIDAY...

.TODAY...SE wind 25 kt. Seas 8 ft. Freezing spray.
.TONIGHT...SE wind 25 kt. Seas 11 ft. Freezing spray.
.FRI...E wind 15 kt E of Saint Matthew Island...NE 25 kt W of
Saint Matthew Island. Seas 11 ft. Freezing spray.
.FRI NIGHT...NE wind 30 kt. Seas 9 ft.
.SAT...E wind 50 kt. Seas 21 ft.
.SUN...E wind 45 kt. Seas 22 ft.
.MON...NE wind 25 kt. Seas 20 ft.

$$

311 
FZAK52 PAFC 250034
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
334 PM AKST Thu Dec 24 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.

PKZ199-251345-
334 PM AKST Thu Dec 24 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 983 mb low 270 nm north of Adak on Thu will move 206 nm 
northwest of Saint Paul on Fri at 992 mb and then weakens by Sat 
morning over the west Bering. A 972 mb low 604 nm southwest of 
Shemya on Fri afternoon will move 53 nm of Shemya at 930 mb on Sat
afternoon.

$$

PKZ150-251345-
South of the AK Peninsula Sitkinak to Castle Cape-
334 PM AKST Thu Dec 24 2020

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 35 kt becoming NW 25 kt after 
midnight. Seas 14 ft. Rain.
.FRI THROUGH SAT...W wind 25 kt. Seas 11 ft.
.SAT NIGHT...SE wind 45 kt. Seas 14 ft.
.SUN...S wind 40 kt. Seas 20 ft.
.MON...SE wind 25 kt. Seas 14 ft.
.TUE...SE wind 15 kt. Seas 15 ft.

$$

PKZ155-251345-
South of the AK Peninsula Castle Cape to Cape Sarichef-
334 PM AKST Thu Dec 24 2020

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 20 kt. From the Shumagin Islands E, NW wind 35
kt diminishing to 20 kt after midnight. Seas 9 ft.
.FRI...NW wind 30 kt. Seas 12 ft.
.FRI NIGHT...NW wind 30 kt. Seas 14 ft.
.SAT...SW wind 35 kt. Seas 11 ft.
.SAT NIGHT...SE wind 45 kt. Seas 21 ft.
.SUN...S wind 35 kt. Seas 20 ft.
.MON...S wind 30 kt. Seas 20 ft.
.TUE...SE wind 20 kt. Seas 19 ft.

$$

PKZ160-251345-
Bristol Bay-
334 PM AKST Thu Dec 24 2020

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

.TONIGHT...N wind increasing to 30 kt. Seas 5 ft. Freezing spray. 
Snow.
.FRI...NE wind 20 kt. Seas 4 ft. Freezing spray. Snow.
.FRI NIGHT...NW wind 25 kt. Seas 4 ft building to 7 ft after
midnight. Freezing spray. Snow showers.
.SAT...W wind 20 kt. Seas 8 ft.
.SAT NIGHT...SE wind 40 kt. Seas 10 ft.
.SUN...SE wind 40 kt. Seas 10 ft.
.MON...SE wind 30 kt. Seas 6 ft.
.TUE...E wind 15 kt. Seas 4 ft.

$$

PKZ165-251345-
Port Heiden to Cape Sarichef-
334 PM AKST Thu Dec 24 2020

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

.TONIGHT...NE wind 20 kt. Seas 6 ft. 
.FRI...NW wind 20 kt increasing to 30 kt in the afternoon. 
Seas 10 ft.
.FRI NIGHT...NW wind 30 kt. Seas 14 ft. Freezing spray.
.SAT...S wind 30 kt. Seas 10 ft.
.SAT NIGHT...SE wind 45 kt. Seas 12 ft.
.SUN...SE wind 35 kt. Seas 10 ft.
.MON...SE wind 30 kt. Seas 9 ft.
.TUE...SE wind 20 kt. Seas 9 ft.

$$

PKZ170-251345-
Cape Sarichef to Nikolski Bering Side-
334 PM AKST Thu Dec 24 2020

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

.TONIGHT...S wind 25 kt. Seas 8 ft building to 13 ft after
midnight.
.FRI...NW wind 30 kt. Seas 18 ft.
.FRI NIGHT...W wind 25 kt. Seas 17 ft.
.SAT...SE wind 40 kt. Seas 14 ft.
.SAT NIGHT...S wind 35 kt. Seas 14 ft.
.SUN THROUGH MON...S wind 35 kt. Seas 17 ft.
.TUE...S wind 25 kt. Seas 11 ft.

$$

PKZ171-251345-
Unalaska Bay-
334 PM AKST Thu Dec 24 2020

...SMALL CRAFT ADVISORY FRIDAY...

.TONIGHT...SW wind 15 kt diminishing to 10 kt after midnight. 
Seas 2 ft. Widespread snow showers.
.FRI...W wind 15 kt increasing to 25 kt in the afternoon. Seas 3 ft 
building to 5 ft in the afternoon.
.FRI NIGHT...W wind 20 kt becoming S after midnight. Seas 3 ft.
.SAT...SE wind 40 kt. Seas 6 ft.
.SAT NIGHT...S wind 30 kt. Seas 5 ft.
.SUN THROUGH MON...S wind 25 kt. Seas 4 ft.
.TUE...S wind 15 kt. Seas 2 ft.

$$

PKZ172-251345-
Cape Sarichef to Nikolski Pacific Side-
334 PM AKST Thu Dec 24 2020

...GALE WARNING FRIDAY...

.TONIGHT...SW wind 20 kt becoming W 30 kt after midnight. 
Seas 13 ft. Snow showers.
.FRI...W wind 35 kt. Seas 15 ft.
.FRI NIGHT...W wind 25 kt. Seas 13 ft.
.SAT...SE wind 40 kt. Seas 19 ft.
.SAT NIGHT...S wind 35 kt. Seas 20 ft.
.SUN...S wind 40 kt. Seas 32 ft.
.MON...S wind 40 kt. Seas 25 ft.
.TUE...S wind 25 kt. Seas 23 ft.

$$

PKZ173-251345-
Nikolski to Seguam Island Bering Side-
334 PM AKST Thu Dec 24 2020

...STORM WARNING THROUGH FRIDAY...

.TONIGHT...SW wind 40 kt becoming W 50 kt after midnight. 
Seas 17 ft building to 23 ft after midnight. Snow showers.
.FRI...W wind 50 kt diminishing to 30 kt in the afternoon. 
Seas 23 ft.
.FRI NIGHT...SE wind 30 kt. Seas 14 ft.
.SAT...SE wind 50 kt. Seas 21 ft.
.SAT NIGHT...S wind 35 kt. Seas 19 ft.
.SUN...S wind 35 kt. Seas 23 ft.
.MON...S wind 35 kt. Seas 17 ft.
.TUE...S wind 20 kt. Seas 13 ft.

$$

PKZ174-251345-
Nikolski to Seguam Island Pacific Side-
334 PM AKST Thu Dec 24 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 21 ft. Snow showers.
.FRI...W wind 45 kt diminishing to 30 kt in the afternoon. 
Seas 20 ft.
.FRI NIGHT...SW wind 25 kt becoming S 35 kt after midnight. 
Seas 15 ft.
.SAT...S wind 45 kt. Seas 23 ft.
.SAT NIGHT...SW wind 35 kt. Seas 33 ft.
.SUN...S wind 45 kt. Seas 35 ft.
.MON...S wind 40 kt. Seas 28 ft.
.TUE...SW wind 25 kt. Seas 26 ft.

$$

PKZ175-251345-
Seguam Island to Adak Bering Side-
334 PM AKST Thu Dec 24 2020

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 50 kt. Seas 21 ft. Snow showers.
.FRI...W wind 45 kt becoming S 25 kt in the afternoon. Seas 19 ft.
.FRI NIGHT...SE wind 30 kt increasing to 40 kt after midnight.
Seas 14 ft. Rain and snow.
.SAT...SE wind 50 kt. Seas 20 ft.
.SAT NIGHT...S wind 45 kt. Seas 18 ft.
.SUN...S wind 35 kt. Seas 16 ft.
.MON THROUGH TUE...SW wind 25 kt. Seas 13 ft.

$$

PKZ176-251345-
Seguam Island to Adak Pacific Side-
334 PM AKST Thu Dec 24 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 19 ft.
.FRI...W wind 40 kt becoming S 30 kt in the afternoon. 
Seas 16 ft subsiding to 11 ft in the afternoon.
.FRI NIGHT...SE wind 30 kt increasing to 45 kt after midnight.
Seas 19 ft. Rain.
.SAT...S wind 45 kt. Seas 26 ft.
.SAT NIGHT...SW wind 50 kt. Seas 38 ft.
.SUN...SW wind 45 kt. Seas 38 ft.
.MON...SW wind 30 kt. Seas 28 ft.
.TUE...SW wind 25 kt. Seas 27 ft.

$$

PKZ177-251345-
Adak to Kiska-
334 PM AKST Thu Dec 24 2020

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 18 ft.
.FRI...S wind 25 kt becoming SE 35 kt in the afternoon. 
Seas 12 ft. Rain.
.FRI NIGHT...SE wind 45 kt. Seas 21 ft. Rain and snow.
.SAT...S wind 55 kt. Seas 31 ft.
.SAT NIGHT...SW wind 55 kt. Seas 35 ft.
.SUN...SW wind 45 kt. Seas 34 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 25 ft.

$$

PKZ178-251345-
Kiska to Attu-
334 PM AKST Thu Dec 24 2020

...STORM WARNING FRIDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 12 ft.
.FRI...E wind 25 kt increasing to 40 kt in the afternoon. 
Seas 12 ft. Snow and rain.
.FRI NIGHT...E wind 45 kt increasing to 55 kt after midnight. 
Seas 21 ft. Rain and snow.
.SAT...N wind 50 kt. Seas 25 ft.
.SAT NIGHT...W wind 55 kt. Seas 26 ft.
.SUN...NW wind 40 kt. Seas 26 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 20 ft.

$$

PKZ179-251345-
Pribilof Islands Near Shore Waters-
334 PM AKST Thu Dec 24 2020

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

.TONIGHT...SE wind 30 kt. Seas 11 ft.
.FRI...E wind 30 kt. Seas 17 ft.
.FRI NIGHT...E wind 25 kt. Seas 13 ft. Freezing spray.
.SAT...E wind 40 kt. Seas 17 ft.
.SAT NIGHT...SE wind 45 kt. Seas 19 ft.
.SUN...SE wind 25 kt. Seas 19 ft.
.MON...SE wind 35 kt. Seas 21 ft.
.TUE...SE wind 25 kt. Seas 14 ft.

$$

PKZ180-251345-
Kuskokwim Delta and Etolin Strait-
334 PM AKST Thu Dec 24 2020

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...
...SMALL CRAFT ADVISORY THROUGH FRIDAY NIGHT...

.TONIGHT...E 15 kt in the evening becoming N 30 kt. Seas 5 ft. 
Heavy freezing spray.
.FRI...N wind 30 kt. Seas 8 ft. Heavy freezing spray.
.FRI NIGHT...NW wind 30 kt. Seas 9 ft. Heavy freezing spray.
.SAT...SW wind 15 kt. Seas 7 ft.
.SAT NIGHT...E wind 45 kt. Seas 16 ft.
.SUN...SE wind 40 kt. Seas 16 ft.
.MON...SE wind 30 kt. Seas 10 ft.
.TUE...E wind 25 kt. Seas 10 ft.

$$

PKZ181-251345-
North and West of Nunivak Island-
334 PM AKST Thu Dec 24 2020

...HEAVY FREEZING SPRAY WARNING FRIDAY NIGHT...

.TONIGHT...SE wind 15 kt. Seas in ice free waters 3 ft. 
Freezing spray.
.FRI...N wind 20 kt. Seas in ice free waters 4 ft. Freezing spray.
.FRI NIGHT...N wind 20 kt. Seas in ice free waters 7 ft. 
Heavy freezing spray.
.SAT...NE wind 20 kt. Seas in ice free waters 3 ft.
.SAT NIGHT...E wind 40 kt. Seas in ice free waters 8 ft.
.SUN...E wind 40 kt. Seas in ice free waters 10 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.

$$

PKZ185-251345-
Saint Matthew Island Waters-
334 PM AKST Thu Dec 24 2020

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

.TONIGHT...SE wind 25 kt. Seas 11 ft. Freezing spray.
.FRI...NE wind 20 kt E of Saint Matthew Island...E 30 kt W of
Saint Matthew Island. Seas 11 ft. Freezing spray.
.FRI NIGHT...NE wind 25 kt E of Saint Matthew Island... E 30 kt W
of Saint Matthew Island. Seas 10 ft. Freezing spray.
.SAT...E wind 45 kt. Seas 12 ft.
.SAT NIGHT...E wind 50 kt. Seas 25 ft.
.SUN...E wind 45 kt. Seas 24 ft.
.MON THROUGH TUE...E wind 25 kt. Seas 19 ft.

$$

647 
FZAK52 PAFC 251255
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
355 AM AKST Fri Dec 25 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.

PKZ199-260200-
355 AM AKST Fri Dec 25 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

Friday morning there is a 982 mb low at 56N 156W. This low will 
move north to 58N 159W Friday afternoon and weaken to 986 mb. 
Additionally, there is a 985 mb low 200 nm northwest of Saint Paul
on Fri at 992 mb and then weakens by Sat morning over the Central
Bering. Friday evening there is a 968 mb low 455 nm southwest of 
Attu and it will move 200 nm south of Shemya at 942 mb on Sat 
morning.

$$

PKZ150-260200-
South of the AK Peninsula Sitkinak to Castle Cape-
355 AM AKST Fri Dec 25 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...SW wind 25 kt. Seas 13 ft.
.TONIGHT...W wind 30 kt. Seas 11 ft.
.SAT...W wind 30 kt becoming SW 15 kt in the afternoon. Seas 11 ft.
.SAT NIGHT...SE wind 25 kt in the evening increasing to 45 kt. Seas 
18 ft.
.SUN...S wind 45 kt. Seas 23 ft.
.MON THROUGH TUE...SE wind 25 kt. Seas 18 ft.

$$

PKZ155-260200-
South of the AK Peninsula Castle Cape to Cape Sarichef-
355 AM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY...

.TODAY...NW wind 30 kt. Seas 12 ft.
.TONIGHT...W wind 30 kt. Seas 13 ft.
.SAT...SW wind 30 kt becoming SE 45 kt in the afternoon. From the
Shumagin Islands E, S wind 30 kt. Seas 13 ft.
.SAT NIGHT...SE wind 50 kt. Seas 22 ft.
.SUN...S wind 35 kt. Seas 25 ft.
.MON...S wind 25 kt. Seas 24 ft.
.TUE...SE wind 20 kt. Seas 16 ft.

$$

PKZ160-260200-
Bristol Bay-
355 AM AKST Fri Dec 25 2020

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

.TODAY...NE wind 15 kt becoming W in the afternoon. Seas 5 ft.
Freezing spray. Snow.
.TONIGHT...NW wind 30 kt. Seas 9 ft. Freezing spray.
.SAT...W wind 25 kt becoming S 15 kt in the afternoon. Seas 8 ft
subsiding to 5 ft in the afternoon. Freezing spray.
.SAT NIGHT...SE wind 20 kt in the evening increasing to 45 kt. Seas 
11 ft.
.SUN...SE wind 45 kt. Seas 12 ft.
.MON THROUGH TUE...E wind 25 kt. Seas 7 ft.

$$

PKZ165-260200-
Port Heiden to Cape Sarichef-
355 AM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY...

.TODAY...NW wind 30 kt. Seas 11 ft. Freezing spray.
.TONIGHT...W wind 30 kt. Seas 13 ft.
.SAT...S wind 30 kt becoming SE 40 kt in the afternoon. From Port
Moller E, SW wind 15 kt becoming SE 30 kt in the afternoon. Seas
11 ft.
.SAT NIGHT...SE wind 45 kt. Seas 12 ft.
.SUN...S wind 30 kt. Seas 10 ft.
.MON...SE wind 25 kt. Seas 12 ft.
.TUE...SE wind 20 kt. Seas 8 ft.

$$

PKZ170-260200-
Cape Sarichef to Nikolski Bering Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...NW wind 30 kt. Seas 17 ft.
.TONIGHT...W wind 30 kt becoming S after midnight. Seas 16 ft.
.SAT...SE wind 30 kt in the morning increasing to 50 kt. Seas 16 ft.
Rain with snow.
.SAT NIGHT...S wind 40 kt. Seas 14 ft.
.SUN...S wind 40 kt. Seas 19 ft.
.MON...S wind 25 kt. Seas 16 ft.
.TUE...SE wind 25 kt. Seas 9 ft.

$$

PKZ171-260200-
Unalaska Bay-
355 AM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY...

.TODAY...NW wind 30 kt. Seas 8 ft subsiding to 5 ft in the
afternoon.
.TONIGHT...W wind 25 kt. Seas 4 ft.
.SAT...SE wind 30 kt in the morning increasing to 40 kt. Seas 6 ft. 
Rain.
.SAT NIGHT...S wind 25 kt. Seas 4 ft.
.SUN...S wind 20 kt. Seas 3 ft.
.MON...S wind 15 kt. Seas 2 ft.
.TUE...SE wind 20 kt. Seas 2 ft.

$$

PKZ172-260200-
Cape Sarichef to Nikolski Pacific Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...NW wind 30 kt. Seas 15 ft.
.TONIGHT...W wind 30 kt. Seas 14 ft.
.SAT...SE 40 wind kt in the morning increasing to 50 kt. Seas 20 ft.
Rain.
.SAT NIGHT...S wind 40 kt. Seas 20 ft.
.SUN...S wind 30 kt. Seas 32 ft.
.MON...S wind 25 kt. Seas 25 ft.
.TUE...S wind 25 kt. Seas 19 ft.

$$

PKZ173-260200-
Nikolski to Seguam Island Bering Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...W wind 40 kt diminishing to 25 kt in the afternoon. 
Seas 19 ft.
.TONIGHT...S wind 25 kt becoming SE 35 kt after midnight. 
Seas 14 ft.
.SAT...SE wind 50 kt becoming S 35 kt in the afternoon. 
Seas 19 ft. Rain.
.SAT NIGHT...S wind 50 kt. Seas 23 ft.
.SUN...S wind 45 kt. Seas 26 ft.
.MON...S wind 30 kt. Seas 18 ft.
.TUE...S wind 20 kt. Seas 12 ft.

$$

PKZ174-260200-
Nikolski to Seguam Island Pacific Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...W wind 40 kt diminishing to 30 kt in the afternoon. 
Seas 19 ft.
.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. 
Seas 16 ft.
.SAT...SE wind 50 kt becoming S 35 kt in the afternoon. 
Seas 21 ft. Rain.
.SAT NIGHT...S wind 50 kt. Seas 37 ft.
.SUN...SW wind 45 kt. Seas 40 ft.
.MON...S wind 30 kt. Seas 28 ft.
.TUE...S wind 25 kt. Seas 21 ft.

$$

PKZ175-260200-
Seguam Island to Adak Bering Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...W wind 35 kt becoming SW 20 kt in the afternoon. 
Seas 20 ft subsiding to 15 ft in the afternoon.
.TONIGHT...SE wind 40 kt. Seas 13 ft. Rain and snow.
.SAT...SE wind 50 kt becoming S 40 kt in the afternoon. Seas 16
ft. Rain.
.SAT NIGHT...S wind 50 kt. Seas 18 ft.
.SUN...SW wind 50 kt. Seas 24 ft.
.MON...S wind 30 kt. Seas 16 ft.
.TUE...SW wind 25 kt. Seas 15 ft.

$$

PKZ176-260200-
Seguam Island to Adak Pacific Side-
355 AM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TODAY...W wind 35 kt becoming S in the afternoon. Seas 16 ft 
subsiding to 13 ft in the afternoon.
.TONIGHT...SE wind 45 kt. Seas 13 ft building to 19 ft after 
midnight. Rain.
.SAT...S wind 50 kt. Seas 26 ft. Rain.
.SAT NIGHT...SW wind 55 kt. Seas 47 ft.
.SUN...SW wind 50 kt. Seas 45 ft.
.MON THROUGH TUE...SW wind 30 kt. Seas 25 ft.

$$

PKZ177-260200-
Adak to Kiska-
355 AM AKST Fri Dec 25 2020

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...SE wind 30 kt. Seas 11 ft. Rain.
.TONIGHT...SE wind 45 kt. Seas 14 ft building to 20 ft after
midnight. Rain and snow.
.SAT...SE wind 45 kt. Bering side, seas 18 ft. Pacific side, seas 24
ft building to 31 ft in the afternoon. Rain.
.SAT NIGHT...W wind 55 kt. Seas 36 ft.
.SUN...SW wind 50 kt. Seas 43 ft.
.MON...SW wind 35 kt. Seas 25 ft.
.TUE...W wind 30 kt. Seas 26 ft.

$$

PKZ178-260200-
Kiska to Attu-
355 AM AKST Fri Dec 25 2020

...STORM WARNING TONIGHT AND SATURDAY...

.TODAY...SE wind 30 kt becoming E 40 kt in the afternoon. Seas
11 ft. Freezing spray in the morning. Snow and rain.
.TONIGHT...E wind 55 kt. Seas 18 ft building to 25 ft after
midnight. Rain and snow.
.SAT...SE wind 50 kt becoming NE 20 kt in the afternoon. From
Shemya W, N wind 55 kt. Seas 27 ft. Snow.
.SAT NIGHT...NW wind 50 kt. Seas 28 ft.
.SUN...NW wind 40 kt. Seas 28 ft.
.MON...W wind 35 kt. Seas 24 ft.
.TUE...W wind 30 kt. Seas 23 ft.

$$

PKZ179-260200-
Pribilof Islands Near Shore Waters-
355 AM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY...

.TODAY...SW wind 25 kt. Seas 17 ft.
.TONIGHT...SW wind 20 kt becoming SE after midnight. Seas 15 ft 
subsiding to 10 ft after midnight.
.SAT...SE wind 30 kt in the morning increasing to 45 kt. Seas 11 ft 
building to 16 ft in the afternoon. Rain with snow.
.SAT NIGHT...SE wind 45 kt. Seas 18 ft.
.SUN...S wind 35 kt. Seas 21 ft.
.MON...SE wind 25 kt. Seas 19 ft.
.TUE...SE wind 25 kt. Seas 11 ft.

$$

PKZ180-260200-
Kuskokwim Delta and Etolin Strait-
355 AM AKST Fri Dec 25 2020

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TODAY...N wind 30 kt. Seas 8 ft. Freezing spray.
.TONIGHT...NW wind 30 kt becoming variable up to 15 kt after 
midnight. Seas 8 ft subsiding to 6 ft after midnight. Freezing spray
in the evening.
.SAT...SW wind 15 kt becoming SE 30 kt in the afternoon. 
Seas 7 ft.
.SAT NIGHT...E wind 50 kt. Seas 16 ft.
.SUN...SE wind 45 kt. Seas 15 ft.
.MON...SE wind 25 kt. Seas 12 ft.
.TUE...SE wind 25 kt. Seas 7 ft.

$$

PKZ181-260200-
North and West of Nunivak Island-
355 AM AKST Fri Dec 25 2020

...HEAVY FREEZING SPRAY WARNING TODAY AND SATURDAY...
...SMALL CRAFT ADVISORY SATURDAY...

.TODAY...N wind 20 kt. Seas in ice free waters 4 ft. Heavy
freezing spray.
.TONIGHT...NW wind 20 kt becoming variable 10 kt after midnight. 
Seas in ice free waters 4 ft. Freezing spray in the evening.
.SAT...S wind 15 kt becoming SE 25 kt in the afternoon. Seas in
ice free waters 4 ft. Heavy freezing spray.
.SAT NIGHT...E wind 45 kt. Seas in ice free waters 10 ft.
.SUN...E wind 40 kt. Seas in ice free waters 9 ft.
.MON THROUGH TUE...E wind 20 kt. Seas in ice free waters 7 ft.

$$

PKZ185-260200-
Saint Matthew Island Waters-
355 AM AKST Fri Dec 25 2020

...GALE WARNING TODAY AND SATURDAY...

.TODAY...E of Saint Matthew Island, E wind 20 kt. W of Saint
Matthew Island, E wind 40 kt diminishing to 30 kt in the afternoon. 
Seas 13 ft. Freezing spray.
.TONIGHT...NE wind 20 kt E of Saint Matthew Island... NE 30 kt W
of Saint Matthew Island. Seas 10 ft. Freezing spray.
.SAT...E of Saint Matthew Island, E wind 15 kt increasing to 35 kt
in the afternoon. W of Saint Matthew Island, NE wind 40 kt. Seas
12 ft. Freezing spray.
.SAT NIGHT...E wind 50 kt. Seas 24 ft.
.SUN...E wind 50 kt. Seas 26 ft.
.MON...E wind 30 kt. Seas 20 ft.
.TUE...NE wind 20 kt. Seas 12 ft.

$$

707 
FZAK52 PAFC 260042
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
342 PM AKST Fri Dec 25 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.

PKZ199-261400-
342 PM AKST Fri Dec 25 2020
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 986 mb low 90 nm west of King Salmon will move 30 nm north of 
Dillingham at 995 mb on Sat morning and then weakens as it moves 
over Bristol Bay through Sat. A 992 mb low 150 nm northwest of 
Saint Paul on Fri afternoon will weaken by Sat morning over the 
Central Bering. A 966 mb low 515 nm northeast of Shemya on Fri 
afternoon will move 224 nm north of Adak on Sun afternoon at 941 
mb.

$$

PKZ150-261400-
South of the AK Peninsula Sitkinak to Castle Cape-
342 PM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 11 ft.
.SAT...W wind 30 kt becoming SW 15 kt in the afternoon. 
Seas 12 ft.
.SAT NIGHT...S wind 35 kt becoming SE 45 kt after midnight. 
Seas 10 ft building to 18 ft after midnight. Rain and snow.
.SUN...S wind 45 kt. Seas 23 ft.
.SUN NIGHT...S wind 30 kt. Seas 18 ft.
.MON THROUGH TUE...SE wind 25 kt. Seas 18 ft.
.WED...E wind 20 kt. Seas 17 ft.

$$

PKZ155-261400-
South of the AK Peninsula Castle Cape to Cape Sarichef-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 13 ft.
.SAT...SW wind 30 kt becoming SE 45 kt in the afternoon. 
From the Shumagin Islands E, S wind 30 kt. Seas 13 ft.
.SAT NIGHT...SE wind 50 kt. Seas 22 ft. Rain and snow.
.SUN...S wind 35 kt. Seas 19 ft.
.SUN NIGHT...S wind 30 kt. Seas 28 ft.
.MON...SE wind 25 kt. Seas 24 ft.
.TUE...SE wind 20 kt. Seas 16 ft.
.WED...SW wind 20 kt. Seas 15 ft.

$$

PKZ160-261400-
Bristol Bay-
342 PM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 9 ft. Freezing spray. Snow showers.
.SAT...W wind 25 kt becoming S 15 kt in the afternoon. Seas 8 ft
subsiding to 5 ft in the afternoon. Freezing spray.
.SAT NIGHT...SE wind 35 kt increasing to 45 kt after midnight.
Seas 7 ft building to 11 ft after midnight. Heavy freezing spray. 
Snow.
.SUN...SE wind 45 kt. Seas 12 ft.
.SUN NIGHT...SE wind 30 kt. Seas 7 ft.
.MON...SE wind 30 kt. Seas 7 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 6 ft.

$$

PKZ165-261400-
Port Heiden to Cape Sarichef-
342 PM AKST Fri Dec 25 2020

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

.TONIGHT...W wind 30 kt. Seas 13 ft.
.SAT...S wind 30 kt becoming SE 40 kt in the afternoon. From Port
Moller E, SW wind 15 kt becoming SE 30 kt in the afternoon. Seas
11 ft.
.SAT NIGHT...SE wind 45 kt becoming S 35 kt after midnight. 
From Port Moller E, SE wind 45 kt. Seas 12 ft. Rain and snow.
.SUN AND SUN NIGHT...S wind 30 kt. Seas 11 ft.
.MON...SE wind 25 kt. Seas 12 ft.
.TUE THROUGH WED...SE wind 20 kt. Seas 8 ft.

$$

PKZ170-261400-
Cape Sarichef to Nikolski Bering Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TONIGHT...S wind 30 kt. Seas 16 ft.
.SAT...SE wind 40 kt increasing to 50 kt in the afternoon. 
Seas 15 ft. Rain.
.SAT NIGHT...S wind 40 kt. Seas 14 ft.
.SUN...S wind 40 kt. Seas 20 ft.
.SUN NIGHT...S wind 35 kt. Seas 19 ft.
.MON...SE wind 30 kt. Seas 16 ft.
.TUE...SE wind 25 kt. Seas 9 ft.
.WED...SW wind 15 kt. Seas 9 ft.

$$

PKZ171-261400-
Unalaska Bay-
342 PM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY...

.TONIGHT...W wind 25 kt. Seas 4 ft subsiding to 
2 ft after midnight. Snow and rain.
.SAT...SE wind 40 kt. Seas 6 ft. Rain.
.SAT NIGHT...S wind 25 kt. Seas 4 ft. Rain.
.SUN...S wind 25 kt. Seas 4 ft.
.SUN NIGHT...S wind 20 kt. Seas 3 ft.
.MON THROUGH TUE...SE wind 20 kt. Seas 3 ft.
.WED...SW wind 10 kt. Seas 3 ft.

$$

PKZ172-261400-
Cape Sarichef to Nikolski Pacific Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY...

.TONIGHT...W wind 30 kt. Seas 14 ft.
.SAT...SE wind 40 kt increasing to 50 kt. Seas 20 ft. Rain.
.SAT NIGHT...S wind 40 kt. Seas 20 ft. Rain.
.SUN...S wind 40 kt. Seas 36 ft.
.SUN NIGHT...SW wind 30 kt. Seas 34 ft.
.MON...SE wind 25 kt. Seas 25 ft.
.TUE...S wind 25 kt. Seas 19 ft.
.WED...SW wind 20 kt. Seas 18 ft.

$$

PKZ173-261400-
Nikolski to Seguam Island Bering Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...S wind 25 kt becoming SE 35 kt after midnight. 
Seas 14 ft. Rain.
.SAT...SE wind 50 kt becoming S 35 kt in the afternoon. 
Seas 19 ft. Rain.
.SAT NIGHT...S wind 50 kt. Seas 21 ft.
.SUN AND SUN NIGHT...S wind 45 kt. Seas 26 ft.
.MON...S wind 40 kt. Seas 18 ft.
.TUE...S wind 20 kt. Seas 12 ft.
.WED...SW wind 20 kt. Seas 11 ft.

$$

PKZ174-261400-
Nikolski to Seguam Island Pacific Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...S wind 30 kt increasing to 40 kt after midnight. 
Seas 16 ft. Rain.
.SAT...SE wind 50 kt becoming S 35 kt in the afternoon. 
Seas 21 ft. Rain.
.SAT NIGHT...SW wind 50 kt. Seas 23 ft building to 35 ft after
midnight. Widespread rain showers.
.SUN AND SUN NIGHT...SW wind 45 kt. Seas 41 ft.
.MON...S wind 35 kt. Seas 28 ft.
.TUE...S wind 25 kt. Seas 21 ft.
.WED...SW wind 20 kt. Seas 19 ft.

$$

PKZ175-261400-
Seguam Island to Adak Bering Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SE wind 25 kt increasing to 40 kt after midnight. 
Seas 13 ft. Rain and snow.
.SAT...SE wind 50 kt becoming S 40 kt in the afternoon. 
Seas 16 ft. Rain.
.SAT NIGHT...S wind 50 kt. Seas 18 ft. Widespread rain showers.
.SUN...SW wind 50 kt. Seas 19 ft.
.SUN NIGHT...S wind 45 kt. Seas 18 ft.
.MON...S wind 40 kt. Seas 16 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED...W wind 20 kt. Seas 10 ft.

$$

PKZ176-261400-
Seguam Island to Adak Pacific Side-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SE wind 35 kt increasing to 45 kt after midnight. 
Seas 14 ft building to 19 ft after midnight. Rain.
.SAT...S wind 50 kt. Seas 26 ft. Rain.
.SAT NIGHT...S wind 55 kt. Seas 46 ft. Widespread rain showers.
.SUN...SW wind 55 kt. Seas 45 ft.
.SUN NIGHT...SW wind 50 kt. Seas 43 ft.
.MON...S wind 40 kt. Seas 27 ft.
.TUE...SW wind 30 kt. Seas 24 ft.
.WED...W wind 25 kt. Seas 20 ft.

$$

PKZ177-261400-
Adak to Kiska-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SE wind 45 kt. Seas 14 ft building to 20 ft after
midnight. Rain and snow.
.SAT...SE wind 45 kt. Bering side, seas 18 ft. Pacific side, seas 24
ft building to 31 ft in the afternoon. Rain.
.SAT NIGHT...Bering side, E wind 30 kt becoming W 40 kt after
midnight. Pacific side, W wind 55 kt. Seas 22 ft Bering side...41 ft
Pacific side. Widespread rain showers.
.SUN...W wind 50 kt. Seas 38 ft.
.SUN NIGHT...SW wind 40 kt. Seas 27 ft.
.MON THROUGH TUE...W wind 30 kt. Seas 26 ft.
.WED...W wind 30 kt. Seas 19 ft.

$$

PKZ178-261400-
Kiska to Attu-
342 PM AKST Fri Dec 25 2020

...STORM WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 55 kt. Seas 18 ft building to 25 ft after
midnight. Rain and snow.
.SAT...SE wind 55 kt becoming NE 20 kt in the afternoon. From
Shemya W, NE wind 60 kt becoming N 50 kt in the afternoon. Seas 27 
ft. Rain and snow.
.SAT NIGHT...Bering side, NE wind 45 kt becoming N 30 kt after
midnight. Pacific side, NW wind 50 kt. Seas 26 ft. Snow and 
widespread rain showers.
.SUN AND SUN NIGHT...NW wind 40 kt. Seas 24 ft.
.MON...NW wind 40 kt. Seas 24 ft.
.TUE...W wind 30 kt. Seas 23 ft.
.WED...SW wind 35 kt. Seas 20 ft.

$$

PKZ179-261400-
Pribilof Islands Near Shore Waters-
342 PM AKST Fri Dec 25 2020

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

.TONIGHT...SW wind 20 kt. Seas 15 ft subsiding to 10 ft after
midnight.
.SAT...SE wind 25 kt increasing to 45 kt in the afternoon. 
Seas 11 ft building to 16 ft in the afternoon. Rain with snow.
.SAT NIGHT...SE wind 45 kt diminishing to 35 kt after midnight.
Seas 18 ft. Rain.
.SUN AND SUN NIGHT...S wind 35 kt. Seas 20 ft.
.MON...SE wind 30 kt. Seas 19 ft.
.TUE...SE wind 25 kt. Seas 11 ft.
.WED...E wind 20 kt. Seas 11 ft.

$$

PKZ180-261400-
Kuskokwim Delta and Etolin Strait-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NW wind 30 kt. Seas 8 ft. Heavy freezing spray.
.SAT...SW wind 15 kt becoming SE 30 kt in the afternoon. 
Seas 7 ft.
.SAT NIGHT...E wind 35 kt increasing to 50 kt after midnight. 
Seas 16 ft. Freezing spray. Snow and rain.
.SUN...SE wind 45 kt. Seas 15 ft.
.SUN NIGHT...SE wind 25 kt. Seas 11 ft.
.MON...SE wind 25 kt. Seas 12 ft.
.TUE THROUGH WED...E wind 25 kt. Seas 8 ft.

$$

PKZ181-261400-
North and West of Nunivak Island-
342 PM AKST Fri Dec 25 2020

...GALE WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...NW wind 20 kt. Seas in ice free waters 4 ft.
Freezing spray.
.SAT...S wind 15 kt becoming SE 25 kt in the afternoon. 
Seas in ice free waters 4 ft. Heavy freezing spray.
.SAT NIGHT...E wind 45 kt. Seas in ice free waters 10 ft. 
Heavy freezing spray.
.SUN...E wind 40 kt. Seas in ice free waters 9 ft.
.SUN NIGHT...SE wind 25 kt. Seas in ice free waters 7 ft.
.MON...SE wind 25 kt. Seas in ice free waters 7 ft.
.TUE THROUGH WED...E wind 20 kt. Seas in ice free waters 5 ft.

$$

PKZ185-261400-
Saint Matthew Island Waters-
342 PM AKST Fri Dec 25 2020

...STORM WARNING SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY NIGHT...

.TONIGHT...NE wind 20 kt E of Saint Matthew Island... NE 30 kt W
of Saint Matthew Island. Seas 10 ft. Freezing spray.
.SAT...E of Saint Matthew Island, E wind 15 kt increasing to 35 kt
in the afternoon. W of Saint Matthew Island, NE wind 40 kt. Seas
12 ft. Freezing spray.
.SAT NIGHT...E wind 50 kt. Seas 23 ft. Heavy freezing spray. Snow.
.SUN...E wind 50 kt. Seas 26 ft.
.SUN NIGHT...E wind 40 kt. Seas 22 ft.
.MON...E wind 30 kt. Seas 20 ft.
.TUE THROUGH WED...NE wind 20 kt. Seas 11 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
453 PM AKST Mon Dec 21 2020

.ANALYSIS AND UPPER LEVELS...

Aloft, a broad trough of low pressure continues to exist in the
Bering. A closed 500MB low exists in the center of the trough,
with shortwave troughs moving through the flow around the base of
this trough. A high amplitude ridge is pushing north through the
Gulf of Alaska and into mainland AK. One of the shortwaves
currently rounding the base of the trough in the North Pacific is
helping to develop a strong surface low there.

Transitioning to the surface, the 500MB low aloft is reflected on
the surface as a large occluded 946 MB low in the Central Bering
that is largely stationary. A frontal system extends from this low
that is currently pushing into Southwest Alaska. A post frontal
trough is also working its way through the Central Aleutians.
Lastly, but not least significantly, a low is developing off of
the southern end of this system's front in the North Pacific. It
is this system that is developing into a strong surface low
mentioned in the previous paragraph. This low is moving northeast
towards the Western Gulf of Alaska. All of this is creating very
active weather. Please see the individual sections of the AFD for
more details about the forecast in your area.

&&

.MODEL DISCUSSION...

Synoptically, models are in good agreement in capturing the long
wave pattern. They are all depicting a broad area of low pressure
over the Bering, with a ridge working its way north through the
Gulf of Alaska. Models are also in agreement on upper level
shortwave troughs moving through this flow, more specifically the
trough that is working its way towards Southcentral AK from the
North Pacific, which is responsible for the incoming weather.
Models have come into better agreement with this system, which is
giving us a higher confidence level with all aspects of the
incoming weather.

Models have also come into better agreement with a secondary low
moving up the Cook Inlet tomorrow night. Initially, the GFS was
the only model to predict the low, but all major models are now
showing this low, so we are now anticipating its arrival. One
major difference is timing, with the GFS being considerably slower
than the NAM, ECMWF and Canadian. With the GFS being such an
outlier, we are leaning towards the other three as they are in
agreement with each other. This does lead to a drop in confidence
in weather associated with this secondary low as the GFS cannot be
completely discounted despite the timing difference.

&&

.AVIATION...
PANC...VFR conditions will be present with overcast cloud cover
staying above VFR minimums. The main impact to the airfield will
be low-level windshear, as northerlies dominate at the surface and
southeasterly winds rapidly increase aloft. It had looked like
there may be a frontal passage on Tuesday, with southeasterly
winds coming into the terminal. However, the front sort of stalls
as a new low over the Gulf approaches. Thus, there is a chance
winds could stay northwesterly at the terminal all day Tuesday,
with very strong low level wind shear during the morning hours.
Anchorage-Homer pressure gradients look to be very strong in the
morning (~10 mb), which will maintain that northerly surface wind.
They might weaken just enough during the afternoon to bring in
the southeasterly wind. Either way, the Anchorage- Homer pressure
gradient then strengthens again late in the afternoon, so any
southeasterlies would be brief.

&&

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

An incredibly strong and active weather pattern continues through
Wednesday for nearly all of Southcentral.

The worst weather is anticipated north of Seward across Turnagain
Pass, Moose Pass and Portage Valley. Snowfall totals of 3 to 5
feet are expected, with highest amounts through Turnagain Pass and
on up into the nearby mountains. When combined with strong gusty
winds (as high as 90 mph through Portage Valley), this will cause
blizzard conditions and make travel very difficult, if not
impossible. A Blizzard Warning remains in effect from 9 p.m. this
evening through noon Tuesday. Additionally, a Small Stream Flood
Advisory has been issued for Moose Pass to Seward until 12:30 p.m.
Wednesday as snow transitions to rain in the area. Heavy rainfall
could lead to ponding of water on roads and hazardous driving
conditions as frozen culverts prevent adequate drainage.

A High Wind Warning remains in effect for Anchorage. Peak wind
gusts of 115 mph are expected for higher elevations of Turnagain
Arm with 100 mph wind gusts anticipated for the Hillside. Gusts
are anticipated to reach 60 mph for the Anchorage Bowl, the Knik
River Valley and the Matanuska Valley through this time. All in
all, expect a windy day beginning tonight and through the morning
commute tomorrow, when winds should be at their strongest, before
tapering off the rest of the day.

These strong winds will create a rapid rise in temperatures across
Southcentral. It is possible that temperatures will reach the 40s
on Tuesday as these strong winds bring warm air into our area as
an area of low pressure moves across Kenai/Cook Inlet. Following
this, on the back side of the low, temperatures will cool as cold
air aloft is brought back to the region. This will cause what has
melted on the ground to refreeze, creating dangerous driving
conditions. Based on the expected low track, there is a chance of
snow in Anchorage tomorrow morning as a short-wave approaches,
despite the very strong winds coming across the mountains. If snow
does fall, blizzard conditions are a strong possibility. Will
continue to evaluate this potential this evening and update
forecasts if it looks likely. Chances of snow increase on
Wednesday, as cold air settles in and the upper level trough
moves through.

We are closely monitoring the situation in Homer as we expect
strong winds and heavy precipitation on the front and back side
of the low. A Small Stream Flood Advisory has been issued for
Anchor River, as snow transitions to heavy rainfall throughout the
day Tuesday that may result in ice jams and minor flooding. The
remaining question is currently how much cold air moves in on the
back side of the low to switch rain over to snow. If this comes to
fruition, increased winds out of the southwest and snowfall can
lead to lowered visibility for Tuesday night into Wednesday.
Models were all over the place with this solution, and with warm
sea surface temperatures, the Special Weather Statement continues
at this time with no additional changes.

The High Wind Watch for Cordova has been upgraded to a High Wind
Warning from 6 p.m. Tuesday to 3 a.m. Wednesday. A hurricane force
barrier jet, supported by a strong jet streak aloft, looks to
move inland during this time. The strong winds may move loose
debris, damage property, cause power outages and lead to difficult
travel conditions.

&&

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

Multiple shortwaves extending off a nearly stationary vertically
stacked low in the Bering track south to north across the
Southwest Mainland over the next couple days. Thus, expected
persistent snow and rain showers across the AKPEN, Bristol Bay,
and western Kuskokwim Delta through tomorrow. Winds are expected
to be strong and gusty through Areas around Bethel and Aniak will
likely be downsloped out of most of the precipitation and will
only see spotty light showers if anything. The AKPEN and coastal
Bristol Bay will start tonight as rain or rain/snow mix before
transitioning to all snow tomorrow. Additionally, predominately
southerly flow will raise temperatures tomorrow and Wednesday
briefly across the Southwest Mainland and the AKPEN and will begin
dropping again by Wednesday evening. Blowing snow advisory
remains in effect through late tonight for the Kuskokwim Delta
coast with strong gusty winds and accumulations around 3-7 inches
possible. Upslope areas along the eastern Kuskokwim Mountains may
see snow accumulations of 2-5 inches through tomorrow.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

The strong low in the Bering remains almost stationary through
tomorrow then moves northeast towards the Y-K Delta. Winds are
strongest on the backside of the low, mainly gales and possibly a
brief period of storms, along the Northern and Western Bering
where significantly colder air is being advected in. Thus, expect
the transition back to snow along the Chain and Southern AKPEN by
tonight as the colder air begins to wrap around the low. Blowing
snow may be a concern for areas along the Central and Eastern
Aleutians tomorrow night.

&&

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

Gulf of Alaska
Models have come into better agreement on the track of low moving
out of the North Pacific and then towards the AKPEN on Thursday,
but there continues to be disagreement on the strength. There
remains upside risk to the southerly winds currently in the
forecast, with gales looking possible across the western Bering.
On Friday/Saturday fairly quiet conditions are expected with good
forecast confidence.

Bering Sea:
On Thursday models continue to struggle with the placement of a
compact storm force low, with the GFS bringing this low through
the central Aleutians, while other models track this system mostly
south of the Aleutians. Our forecast sides with the further south
track, keeping lighter winds in across the Aleutians. On Friday a
front pushes into the western Bering/Aleutians, and a few areas of
Gales appear possible. On Saturday a deepening storm system looks
to set up across the western Aleutians, but there are significant
model differences as to how quickly this storm strengthens. There
may be significant upside risk to winds across the eastern Bering
on Saturday if the stronger solutions work out.

&&

.Long Term (Days 4 through 7/: Friday through Monday)...

On Friday models have come into better agreement on the track of a
North Pacific low, with good agreement on this next storm system
heading towards the AKPEN, bringing another wintry mix to
southwest Alaska and Kodiak. A gale force front looks to push into
the western Aleutians at the same time. On Saturday the AKPEN low
mostly dissipates. Meanwhile, a storm system begins to rapidly
intensify across the western Aleutians with the potential for some
storm force winds setting up across the central Aleutians along
with plentiful rain. On Sunday most models show this Bering/Aleutians
storm becoming fully mature and retrograding north and west
towards the Kamchatka Peninsula while unsettled weather continues
across the Bering and Southwest Alaska.

Model consistency disintegrates heading into Monday, but the
general idea of an active pattern across the Bering and relatively
quiet weather across Southcentral should hold.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Warning 101 125 135.
         Blizzard Warning 125.
         Winter Weather Advisory 155.
         Flood Advisory 121 125.
MARINE...Hurricane Force Wind Warning 119 125.
         Storm Warning 120 130 131 132.
         Gale Warning 128 129 136 137 138 139 140 141
                      150 155 160 165 170 171 172 173
                      174 175 180 185.
         Heavy Freezing Spray Warning 180 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BB
SOUTHCENTRAL ALASKA...CK
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KM
MARINE/LONG TERM...BG

SPECIAL WEATHER STATEMENT...CORRECTED
National Weather Service ANCHORAGE AK
1147 PM AKST Mon Dec 21 2020

AKZ111-221400-
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
1147 PM AKST Mon Dec 21 2020

...STRONG WINDS EXPECTED LATE TONIGHT THROUGH TUESDAY MORNING FOR
THE MATANUSKA VALLEY...

A strong frontal system moving across Southcentral will cause
winds to increase out of the Knik and Matanuska River Valleys late
tonight through Tuesday morning. Gusts up to 60 mph are possible,
especially Tuesday morning. People are urged to secure loose
objects that could be blown around or damaged by the wind. Prepare
for the possibility of sporadic power outages.

AKZ121-221400-
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer,
and Cooper Landing
1147 PM AKST Mon Dec 21 2020

...BLOWING SNOW TO REDUCE VISIBILITIES FROM THE HOMER BLUFF NORTH
TO CLAM GULCH TUESDAY NIGHT INTO WEDNESDAY...

Temperatures climbing into the lower 40s for many locations
Tuesday will fall back below freezing by Tuesday night or early
Wednesday morning as colder air quickly returns. The return of
colder temperatures will be accompanied by another round of snow,
which may become heavy at times. Gusty south to southwesterly
winds are also expected at the same time as the snow. This could
cause localized reductions in visibility to as low as a half mile
at times. There remains considerable uncertainty as to when the
worst conditions will occur. Stay tuned for future updates as the
details become more clear.

SPECIAL WEATHER STATEMENT
National Weather Service ANCHORAGE AK
300 AM AKST Tue Dec 22 2020

AKZ111-230000-
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
300 AM AKST Tue Dec 22 2020

...STRONG WINDS EXPECTED THIS MORNING FOR THE MATANUSKA VALLEY...

A strong frontal system moving across Southcentral will cause
winds to increase out of the Knik and Matanuska River Valleys this
morning. People are urged to secure loose objects that could be
blown around or damaged by the wind. Prepare for the possibility
of sporadic power outages.

AKZ121-230000-
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer,
and Cooper Landing
300 AM AKST Tue Dec 22 2020

...BLOWING SNOW TO REDUCE VISIBILITIES FROM THE HOMER BLUFF NORTH
TO CLAM GULCH TONIGHT INTO WEDNESDAY...

Temperatures climbing into the lower 40s for many locations
today will fall back below freezing by tonight or early Wednesday
morning as colder air quickly returns. The return of colder
temperatures will be accompanied by another round of snow, which
may become heavy at times. Gusty south to southwesterly winds are
also expected at the same time as the snow. This could cause
localized reductions in visibility to as low as a half mile at
times. There is some uncertainty as to when the worst conditions
will occur. Stay tuned for future updates as the details become
more clear.