Small Craft Advisory 965, NWS Anchorage, AK

447 
FZAK52 PAFC 161218
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
318 AM AKST Sat Dec 16 2017

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.

PKZ199-170130-
318 AM AKST Sat Dec 16 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 968 mb low 65 nm northwest of Toksook Bay moves to 40 nm west of
Port Heiden at 990 mb Sun morning and then moves into the Gulf 
and dissipates by Sun night. A front associated with a 952 mb low 
230 nm north of Shemya Sun afternoon moves across the Bering 
through Mon afternoon.

$$

PKZ150-170130-
South of the AK Peninsula Sitkinak to Castle Cape-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW wind 35 kt. Seas 22 ft. Rain showers.
.TONIGHT...SW wind 35 kt. Seas 22 ft.
.SUN...NW wind 35 kt. Seas 18 ft.
.SUN NIGHT...NW wind 35 kt. Seas 16 ft.
.MON THROUGH TUE...SW wind 35 kt. Seas 14 ft.
.WED...S wind 25 kt. Seas 13 ft.

$$

PKZ155-170130-
South of the AK Peninsula Castle Cape to Cape Sarichef-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW wind 40 kt. Seas 24 ft. Rain showers.
.TONIGHT...W wind 40 kt. Seas 24 ft.
.SUN...NW wind 40 kt. Seas 20 ft.
.SUN NIGHT...W wind 30 kt. Seas 13 ft.
.MON...SW wind 40 kt. Seas 21 ft.
.TUE...SW wind 35 kt. Seas 21 ft.
.WED...S wind 25 kt. Seas 13 ft.

$$

PKZ160-170130-
Bristol Bay-
318 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...S wind 25 kt. Seas 7 ft. Rain showers and snow showers.
.TONIGHT...S wind 15 kt becoming N after midnight. Seas 6 ft. Snow
showers and rain showers.
.SUN...NW wind 30 kt. Seas 10 ft.
.SUN NIGHT...NW wind 30 kt. Seas 10 ft.
.MON...S wind 30 kt. Seas 10 ft.
.TUE...SW wind 30 kt. Seas 10 ft.
.WED...S wind 25 kt. Seas 7 ft.

$$

PKZ165-170130-
Port Heiden to Cape Sarichef-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 35 kt except S 25 kt from Port Moller E. Seas 11
ft. Rain showers and snow showers.
.TONIGHT...NW wind 40 kt except NW 35 kt from Port Moller E. Seas
23 ft. From Port Moller E, seas 11 ft building to 18 ft after
midnight. Snow showers and rain showers.
.SUN...NW wind 40 kt diminishing to 30 kt in the afternoon. Seas
21 ft.
.SUN NIGHT...W wind 30 kt. Seas 12 ft.
.MON...S wind 40 kt. Seas 18 ft.
.TUE...SW wind 25 kt. Seas 14 ft.
.WED...S wind 30 kt. Seas 13 ft.

$$

PKZ170-170130-
Cape Sarichef to Nikolski Bering Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 30 kt increasing to 40 kt in the afternoon. Seas
16 ft. Rain showers.
.TONIGHT...NW wind 40 kt. Seas 22 ft.
.SUN...NW wind 35 kt becoming W 25 kt in the afternoon. Seas 19
ft.
.SUN NIGHT...S wind 45 kt. Seas 14 ft.
.MON...SW wind 45 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.WED...S wind 35 kt. Seas 14 ft.

$$

PKZ171-170130-
Unalaska Bay-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 35 kt. Seas 5 ft. Rain showers.
.TONIGHT...W wind 40 kt. Seas 6 ft building to 16 ft after
midnight.
.SUN...NW wind 30 kt becoming W 20 kt in the afternoon. Seas 13 ft
subsiding to 7 ft in the afternoon.
.SUN NIGHT...S wind 25 kt. Seas 4 ft.
.MON...SW wind 35 kt. Seas 5 ft.
.TUE...SW wind 20 kt. Seas 2 ft.
.WED...S wind 25 kt. Seas 3 ft.

$$

PKZ172-170130-
Cape Sarichef to Nikolski Pacific Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 40 kt. Seas 25 ft.
.TONIGHT...W wind 40 kt. Seas 21 ft.
.SUN...NW wind 35 kt. Seas 16 ft.
.SUN NIGHT...SW wind 40 kt. Seas 13 ft.
.MON...SW wind 45 kt. Seas 25 ft.
.TUE...SW wind 25 kt. Seas 19 ft.
.WED...S wind 35 kt. Seas 16 ft.

$$

PKZ173-170130-
Nikloski to Seguam Island Bering Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 35 kt. Seas 17 ft.
.TONIGHT...NW wind 40 kt. Seas 19 ft.
.SUN...W wind 20 kt becoming SW 30 kt late morning. Seas 16 ft.
.SUN NIGHT...S wind 50 kt. Seas 22 ft.
.MON...SW wind 50 kt. Seas 23 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED...S wind 35 kt. Seas 19 ft.

$$

PKZ174-170130-
Nikolski to Seguam Island Pacific Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 40 kt. Seas 27 ft.
.TONIGHT...NW wind 35 kt. Seas 19 ft.
.SUN...W wind 20 kt becoming SW 30 kt late morning. Seas 15 ft.
.SUN NIGHT...S wind 50 kt. Seas 23 ft.
.MON...SW wind 50 kt. Seas 29 ft.
.TUE...SW wind 30 kt. Seas 19 ft.
.WED...S wind 35 kt. Seas 23 ft.

$$

PKZ175-170130-
Seguam Island to Adak Bering Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...NW wind 40 kt. Seas 17 ft.
.TONIGHT...NW wind 35 kt. Seas 16 ft.
.SUN...SW wind 35 kt becoming S 45 kt in the afternoon. Seas 15
ft.
.SUN NIGHT...S wind 55 kt. Seas 22 ft.
.MON...SW wind 35 kt. Seas 18 ft.
.TUE THROUGH WED...SW wind 30 kt. Seas 18 ft.

$$

PKZ176-170130-
Seguam Island to Adak Pacific Side-
318 AM AKST Sat Dec 16 2017

...GALE WARNING TODAY AND SUNDAY...

.TODAY...W wind 45 kt becoming NW 35 kt in the afternoon. Seas
25 ft.
.TONIGHT...NW wind 30 kt. Seas 16 ft.
.SUN...SW wind 30 kt becoming S 45 kt in the afternoon. Seas 11 ft
building to 16 ft in the afternoon.
.SUN NIGHT...S wind 55 kt. Seas 30 ft.
.MON...SW wind 50 kt. Seas 29 ft.
.TUE...SW wind 30 kt. Seas 20 ft.
.WED...SW wind 35 kt. Seas 26 ft.

$$

PKZ177-170130-
Adak to Kiska-
318 AM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY...

.TODAY...NW wind 40 kt becoming W 30 kt in the afternoon. Seas
19 ft.
.TONIGHT...W wind 30 kt becoming S 40 kt after midnight. Seas 14 ft.
Snow.
.SUN...S wind 45 kt increasing to 55 kt in the afternoon. Seas 19 ft
building to 28 ft in the afternoon. Rain.
.SUN NIGHT...SW wind 55 kt. Seas 30 ft.
.MON...SW wind 40 kt. Seas 25 ft.
.TUE...SW wind 35 kt. Seas 21 ft.
.WED...W wind 30 kt. Seas 23 ft.

$$

PKZ178-170130-
Kiska to Attu-
318 AM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY...

.TODAY...W wind 30 kt. Seas 17 ft.
.TONIGHT...S wind 45 kt. Seas 13 ft building to 20 ft after
midnight. Rain and snow.
.SUN...S wind 55 kt. Seas 31 ft. Rain.
.SUN NIGHT...SW wind 45 kt. Seas 28 ft.
.MON...W wind 45 kt. Seas 28 ft.
.TUE...SW wind 35 kt. Seas 23 ft.
.WED...W wind 30 kt. Seas 19 ft.

$$

PKZ179-170130-
Pribilof Islands Near Shore Waters-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind increasing to 40 kt. Seas 18 ft. Snow showers.
.TONIGHT...NW wind 40 kt. Seas 18 ft.
.SUN...NW wind 30 kt becoming SW 20 kt in the afternoon. Seas 13 ft.
.SUN NIGHT...S wind 45 kt. Seas 21 ft.
.MON...SW wind 45 kt. Seas 27 ft.
.TUE THROUGH WED...S wind 30 kt. Seas 18 ft.

$$

PKZ180-170130-
Kuskokwim Delta and Etolin Strait-
318 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...S wind 25 kt becoming variable 15 kt late afternoon. Seas 8
ft. Rain showers and snow showers.
.TONIGHT...N wind 30 kt. Seas 11 ft. Snow and rain showers.
.SUN...NW wind 30 kt. Seas 11 ft.
.SUN NIGHT...SW wind 30 kt. Seas 9 ft.
.MON...S wind 40 kt. Seas 17 ft.
.TUE...SW wind 25 kt. Seas 12 ft.
.WED...S wind 30 kt. Seas 10 ft.

$$

PKZ181-170130-
North and West of Nunivak Island-
318 AM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...Variable wind 15 kt becoming NE wind 25 kt by late morning.
Seas 9 ft.
.TONIGHT...N wind 30 kt. Seas 11 ft. Freezing spray.
.SUN...NW wind 30 kt. Seas 11 ft. Freezing spray.
.SUN NIGHT...S wind 40 kt. Seas 9 ft.
.MON...S wind 45 kt. Seas 19 ft.
.TUE...SW wind 25 kt. Seas 13 ft.
.WED...S wind 35 kt. Seas 12 ft.

$$

PKZ185-170130-
Saint Matthew Island Waters-
318 AM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...N wind 40 kt. Seas 14 ft. Freezing spray.
.TONIGHT...NW wind 35 kt. Seas 13 ft. Freezing spray.
.SUN...E of Saint Matthew Island, W wind 30 kt becoming SW 20 kt
in the afternoon. W of Saint Matthew Island, SW wind 20 kt becoming 
SE 45 kt in the afternoon. Seas 9 ft. Freezing spray.
.SUN NIGHT...SE wind 45 kt. Seas 27 ft.
.MON...S wind 45 kt. Seas 26 ft.
.TUE...SW wind 35 kt. Seas 25 ft.
.WED...S wind 30 kt. Seas 17 ft.

$$

521 
FZAK52 PAFC 170012
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
312 PM AKST Sat Dec 16 2017

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.

PKZ199-171315-
312 PM AKST Sat Dec 16 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 977 mb low 80 nm South of Mekoryuk becomes a 986 mb low 120 nm
West of Kodiak City Sat night and continues across the Gulf of 
Alaska through Mon afternoon. The associated front moves into the 
Eastern Bering Sun evening. A 985 mb Kamchatka low deepens to 949 
mb Mon morning. Its associated front moves across the Bering and 
Aleutians by Mon afternoon.

$$

PKZ150-171315-
South of the AK Peninsula Sitkinak to Castle Cape-
312 PM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...W wind 35 kt. Seas 20 ft. Rain showers.
.SUN...W wind 35 kt. Seas 18 ft.
.SUN NIGHT...NW wind 30 kt. Seas 16 ft.
.MON...W wind 25 kt. Seas 9 ft.
.MON NIGHT...SW wind 35 kt. Seas 15 ft.
.TUE...SW wind 35 kt. Seas 17 ft.
.WED...S wind 25 kt. Seas 13 ft.
.THU...SE wind 25 kt. Seas 15 ft.

$$

PKZ155-171315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
312 PM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...W wind 40 kt. Seas 22 ft.
.SUN...NW wind 40 kt. Seas 20 ft.
.SUN NIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas
13 ft.
.MON AND MON NIGHT...SW wind 40 kt. Seas 20 ft.
.TUE...SW wind 35 kt. Seas 20 ft.
.WED THROUGH THU...S wind 25 kt. Seas 14 ft.

$$

PKZ160-171315-
Bristol Bay-
312 PM AKST Sat Dec 16 2017

...SMALL CRAFT ADVISORY SUNDAY AND SUNDAY NIGHT...

.TONIGHT...S wind 15 kt becoming N after midnight. Seas 5 ft.
.SUN...NW wind 20 kt increasing to 30 kt in the afternoon. Seas
8 ft. Patchy freezing fog.
.SUN NIGHT...NW wind 30 kt becoming W 20 kt after midnight. Seas
9 ft. Freezing spray.
.MON...S wind 30 kt. Seas 7 ft.
.MON NIGHT...S wind 30 kt. Seas 11 ft.
.TUE...SW wind 20 kt. Seas 9 ft.
.WED...S wind 25 kt. Seas 7 ft.
.THU...SE wind 25 kt. Seas 5 ft.

$$

PKZ165-171315-
Port Heiden to Cape Sarichef-
312 PM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...W wind 40 kt, Seas 22 ft. From Port Moller E, W wind
30 kt increasing to 40 kt after midnight, Seas 10 ft building to
20 ft after midnight. Snow showers and rain showers.
.SUN...NW wind 35 kt. Seas 20 ft.
.SUN NIGHT...W wind 20 kt becoming S 35 kt after midnight. From
Port Moller E, NW wind 25 kt. Seas 12 ft.
.MON...S wind 45 kt. Seas 19 ft.
.MON NIGHT...SW wind 35 kt. Seas 19 ft.
.TUE...SW wind 25 kt. Seas 15 ft.
.WED THROUGH THU...SE wind 30 kt. Seas 12 ft.

$$

PKZ170-171315-
Cape Sarichef to Nikolski Bering Side-
312 PM AKST Sat Dec 16 2017

...GALE WARNING TONIGHT AND SUNDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 20 ft.
.SUN...NW wind 30 kt. Seas 18 ft.
.SUN NIGHT...S wind 35 kt increasing to 45 kt after midnight. Seas
10 ft building to 16 ft after midnight.
.MON...S wind 45 kt. Seas 23 ft.
.MON NIGHT...SW wind 30 kt. Seas 18 ft.
.TUE...SW wind 30 kt. Seas 20 ft.
.WED THROUGH THU...S wind 35 kt. Seas 13 ft.

$$

PKZ171-171315-
Unalaska Bay-
312 PM AKST Sat Dec 16 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 35 kt. Seas 5 ft. Snow showers.
.SUN...NW wind 30 kt becoming W 20 kt in the afternoon. Seas 13 ft
subsiding to 3 ft in the afternoon.
.SUN NIGHT...S wind 20 kt increasing to 30 kt after midnight. Seas
2 ft building to 5 ft after midnight.
.MON...S wind 30 kt. Seas 5 ft.
.MON NIGHT...SW wind 20 kt. Seas 3 ft.
.TUE...SW wind 20 kt. Seas 2 ft.
.WED THROUGH THU...S wind 25 kt. Seas 3 ft.

$$

PKZ172-171315-
Cape Sarichef to Nikolski Pacific Side-
312 PM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW wind 35 kt. Seas 20 ft.
.SUN...NW wind 35 kt diminishing to 25 kt after midnight. Seas 16 
ft.
.SUN NIGHT...SW wind 25 kt becoming S 40 kt after midnight. Seas
8 ft building to 14 ft after midnight.
.MON...S wind 45 kt. Seas 27 ft.
.MON NIGHT...SW wind 40 kt. Seas 26 ft.
.TUE...SW wind 25 kt. Seas 18 ft.
.WED...S wind 35 kt. Seas 16 ft.
.THU...S wind 30 kt. Seas 19 ft.

$$

PKZ173-171315-
Nikloski to Seguam Island Bering Side-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 35 kt diminishing to 25 kt after midnight. Seas 
18 ft.
.SUN...W wind 25 kt becoming SW 35 kt in the afternoon. Seas 15 ft.
.SUN NIGHT...S wind 40 kt in the evening increasing to 50 kt. Seas 
16 ft building to 22 ft after midnight. Rain.
.MON...SW wind 50 kt. Seas 24 ft.
.MON NIGHT...SW wind 30 kt. Seas 19 ft.
.TUE...SW wind 30 kt. Seas 21 ft.
.WED...S wind 35 kt. Seas 19 ft.
.THU...W wind 25 kt. Seas 19 ft.

$$

PKZ174-171315-
Nikolski to Seguam Island Pacific Side-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 35 kt. Seas 18 ft.
.SUN...W wind 30 kt. Seas 14 ft.
.SUN NIGHT...S wind 40 kt increasing to 50 kt after midnight. Seas
16 ft building to 23 ft after midnight. Rain.
.MON...SW wind 50 kt. Seas 30 ft.
.MON NIGHT...W wind 25 kt. Seas 23 ft.
.TUE...SW wind 30 kt. Seas 19 ft.
.WED...S wind 35 kt. Seas 23 ft.
.THU...W wind 25 kt. Seas 23 ft.

$$

PKZ175-171315-
Seguam Island to Adak Bering Side-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 16 ft.
.SUN...S wind 35 kt increasing to 45 kt in the afternoon. Seas 11 ft
building to 16 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 23 ft. Rain.
.MON AND MON NIGHT...SW wind 35 kt. Seas 20 ft.
.TUE...SW wind 30 kt. Seas 22 ft.
.WED...SW wind 30 kt. Seas 16 ft.
.THU...W wind 30 kt. Seas 21 ft.

$$

PKZ176-171315-
Seguam Island to Adak Pacific Side-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 16 ft.
.SUN...SW wind 30 kt becoming S 45 kt in the afternoon. Seas 11 ft
building to 17 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 31 ft. Rain.
.MON...SW wind 50 kt. Seas 31 ft.
.MON NIGHT...W wind 30 kt. Seas 22 ft.
.TUE...SW wind 30 kt. Seas 21 ft.
.WED...SW wind 35 kt. Seas 26 ft.
.THU...W wind 25 kt. Seas 26 ft.

$$

PKZ177-171315-
Adak to Kiska-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...W wind 30 kt becoming S 40 kt after midnight. Seas 13 ft.
.SUN...S wind 45 kt increasing to 55 kt in the afternoon. Seas 20 ft
building to 29 ft in the afternoon. Rain.
.SUN NIGHT...SW wind 55 kt diminishing to 35 kt after midnight.
Bering side, seas 29 ft subsiding to 22 ft after midnight. Pacific 
side, seas 33 ft. Rain.
.MON AND MON NIGHT...W wind 40 kt. Seas 26 ft.
.TUE...SW wind 35 kt. Seas 25 ft.
.WED THROUGH THU...W wind 30 kt. Seas 23 ft.

$$

PKZ178-171315-
Kiska to Attu-
312 PM AKST Sat Dec 16 2017

...STORM WARNING SUNDAY...

.TONIGHT...S wind 35 kt in the evening increasing to 45 kt. Seas 13 
ft building to 19 ft after midnight. Rain and snow.
.SUN...S wind 55 kt. Seas 31 ft. Rain.
.SUN NIGHT...SW wind 45 kt. Seas 28 ft. Snow showers and rain
showers.
.MON AND MON NIGHT...W wind 45 kt. Seas 31 ft.
.TUE...SW wind 35 kt. Seas 26 ft.
.WED THROUGH THU...W wind 30 kt. Seas 19 ft.

$$

PKZ179-171315-
Pribilof Islands Near Shore Waters-
312 PM AKST Sat Dec 16 2017

...GALE WARNING TONIGHT AND SUNDAY NIGHT...

.TONIGHT...NW wind 40 kt. Seas 17 ft.
.SUN...W wind 25 kt. Seas 13 ft.
.SUN NIGHT...S wind 30 kt in the evening increasing to 45 kt. Seas 
13 ft building to 23 ft after midnight. Rain.
.MON...SW wind 45 kt. Seas 28 ft.
.MON NIGHT...SW wind 30 kt. Seas 20 ft.
.TUE...SW wind 30 kt. Seas 23 ft.
.WED THROUGH THU...S wind 30 kt. Seas 17 ft.

$$

PKZ180-171315-
Kuskokwim Delta and Etolin Strait-
312 PM AKST Sat Dec 16 2017

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 12 ft.
.SUN...NW wind 30 kt. Seas 13 ft. Freezing spray N of Cape Newenham.
.SUN NIGHT...W wind 25 kt becoming S 35 kt after midnight. Seas
9 ft.
.MON...S wind 45 kt. Seas 19 ft.
.MON NIGHT...SW wind 40 kt. Seas 18 ft.
.TUE...SW wind 30 kt. Seas 14 ft.
.WED THROUGH THU...SE wind 30 kt. Seas 10 ft.

$$

PKZ181-171315-
North and West of Nunivak Island-
312 PM AKST Sat Dec 16 2017

...GALE WARNING SUNDAY NIGHT...

.TONIGHT...N wind 30 kt. Seas 12 ft. Freezing spray after midnight.
.SUN...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas 11 
ft. Freezing spray.
.SUN NIGHT...S wind 25 kt becoming SE 40 kt after midnight. Seas
6 ft building to 12 ft after midnight. Snow and rain.
.MON...S wind 45 kt. Seas 20 ft.
.MON NIGHT...SW wind 30 kt. Seas 15 ft.
.TUE...SW wind 30 kt. Seas 16 ft.
.WED THROUGH THU...SE wind 35 kt. Seas 12 ft.

$$

PKZ185-171315-
Saint Matthew Island Waters-
312 PM AKST Sat Dec 16 2017

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NW wind 35 kt. Seas 13 ft. Freezing spray.
.SUN...E of Saint Matthew Island, NW wind 30 kt becoming SW 20 kt
in the afternoon. W of Saint Matthew Island, SW wind 25 kt becoming 
SE 45 kt in the afternoon. Seas 9 ft. Freezing spray.
.SUN NIGHT...SE wind 45 kt. Seas 24 ft. Rain and snow.
.MON...S wind 40 kt. Seas 24 ft.
.MON NIGHT...S wind 35 kt. Seas 26 ft.
.TUE...SW wind 35 kt. Seas 30 ft.
.WED THROUGH THU...SE wind 30 kt. Seas 16 ft.

$$

131 
FZAK52 PAFC 171245
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
345 AM AKST Sun Dec 17 2017

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.

PKZ199-180115-
345 AM AKST Sun Dec 17 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 991 mb low 60 nm northwest of Port Heiden will enter the 
western Gulf this afternoon. A 973 mb Kamchatka low will move to 
155 nm west of Shemya this afternoon, then move to 300 nm northwest 
of Shemya at 952 mb Mon night, then to the northern Bering Tue 
morning. An associated strong front over the western Aleutians will 
move over the eastern Aleutians Mon morning. 

$$

PKZ150-180115-
South of the AK Peninsula Sitkinak to Castle Cape-
345 AM AKST Sun Dec 17 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...W wind 25 kt becoming NW 40 kt by mid morning. Seas 18 ft.
.TONIGHT...NW wind 35 kt. Seas 16 ft.
.MON...SW wind 30 kt. Seas 10 ft.
.MON NIGHT...SW wind 35 kt. Seas 14 ft.
.TUE...SW wind 35 kt. Seas 16 ft.
.WED...S wind 25 kt. Seas 11 ft.
.THU...SE wind 30 kt. Seas 19 ft.

$$

PKZ155-180115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
345 AM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY...

.TODAY...NW wind 40 kt. Seas 20 ft.
.TONIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas 14
ft subsiding to 10 ft after midnight.
.MON...S wind 40 kt except SW 30 kt from the Shumagin Islands E.
Seas 17 ft except 10 ft from the Shumagin Islands E.
.MON NIGHT...SW wind 40 kt. Seas 21 ft.
.TUE...SW wind 30 kt. Seas 20 ft.
.WED...S wind 25 kt. Seas 13 ft.
.THU...SE wind 25 kt. Seas 17 ft.

$$

PKZ160-180115-
Bristol Bay-
345 AM AKST Sun Dec 17 2017

...GALE WARNING MONDAY...

.TODAY...N wind 20 kt becoming NW 30 kt in the afternoon. Seas 9 ft.
Patchy freezing fog.
.TONIGHT...NW wind 30 kt becoming W 20 kt after midnight. Seas 10 ft.
.MON...S wind 25 kt becoming SE 35 kt in the afternoon. Seas 7 ft.
.MON NIGHT...S wind 35 kt. Seas 11 ft.
.TUE...SW wind 25 kt. Seas 10 ft.
.WED...S wind 20 kt. Seas 10 ft.
.THU...E wind 25 kt. Seas 7 ft.

$$

PKZ165-180115-
Port Heiden to Cape Sarichef-
345 AM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY...

.TODAY...NW wind 40 kt. Seas 20 ft.
.TONIGHT...W wind 20 kt becoming S 35 kt after midnight. From Port
Moller E, NW wind 25 kt. Seas 12 ft.
.MON...S wind 45 kt, Seas 15 ft building to 21 ft in the afternoon. 
From Port Moller E, S wind 30 kt increasing to 40 kt in the 
afternoon, Seas 8 ft building to 14 ft in the afternoon. Rain.
.MON NIGHT...SW wind 40 kt. Seas 20 ft.
.TUE...SW wind 30 kt. Seas 18 ft.
.WED...S wind 25 kt. Seas 17 ft.
.THU...SE wind 25 kt. Seas 12 ft.

$$

PKZ170-180115-
Cape Sarichef to Nikolski Bering Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING MONDAY...

.TODAY...NW wind 35 kt becoming W 25 kt in the afternoon. Seas
22 ft.
.TONIGHT...S wind 45 kt. Seas 17 ft.
.MON...S wind 50 kt. Seas 23 ft. Rain.
.MON NIGHT...SW wind 30 kt. Seas 19 ft.
.TUE...SW wind 30 kt. Seas 22 ft.
.WED...S wind 35 kt. Seas 19 ft.
.THU...S wind 30 kt. Seas 16 ft.

$$

PKZ171-180115-
Unalaska Bay-
345 AM AKST Sun Dec 17 2017

...GALE WARNING MONDAY...

.TODAY...W wind 30 kt becoming W 20 kt in the afternoon. Seas 10 ft 
subsiding to 5 ft in the afternoon.
.TONIGHT...S wind 20 kt increasing to 30 kt after midnight. Seas
3 ft building to 5 ft after midnight.
.MON...S wind 35 kt. Seas 5 ft. Rain.
.MON NIGHT...SW wind 20 kt. Seas 3 ft.
.TUE...SW wind 20 kt. Seas 3 ft.
.WED THROUGH THU...S wind 20 kt. Seas 3 ft.

$$

PKZ172-180115-
Cape Sarichef to Nikolski Pacific Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING MONDAY...

.TODAY...NW wind 35 kt. Seas 16 ft.
.TONIGHT...SW wind 30 kt becoming S 40 kt after midnight. Seas 9 ft 
building to 14 ft after midnight.
.MON...S wind 50 kt. Seas 21 ft building to 27 ft in the afternoon. 
Rain.
.MON NIGHT...SW wind 45 kt. Seas 26 ft.
.TUE...SW wind 25 kt. Seas 19 ft.
.WED...S wind 35 kt. Seas 19 ft.
.THU...S wind 25 kt. Seas 19 ft.

$$

PKZ173-180115-
Nikloski to Seguam Island Bering Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...W wind 25 kt becoming SW 35 kt in the afternoon. Seas
15 ft.
.TONIGHT...S wind 50 kt. Seas 16 ft building to 22 ft after midnight.
Rain.
.MON...S wind 50 kt becoming SW 35 kt in the afternoon. Seas 24 ft. 
Rain.
.MON NIGHT...SW wind 35 kt. Seas 21 ft.
.TUE THROUGH WED...S wind 35 kt. Seas 23 ft.
.THU...W wind 25 kt. Seas 16 ft.

$$

PKZ174-180115-
Nikolski to Seguam Island Pacific Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...SW wind 30 kt. Seas 14 ft.
.TONIGHT...S wind 40 kt increasing to 50 kt after midnight. Seas
16 ft building to 22 ft after midnight.
.MON...S wind 50 kt. Seas 30 ft. Rain.
.MON NIGHT...W wind 30 kt. Seas 24 ft.
.TUE...SW wind 30 kt. Seas 21 ft.
.WED...S wind 35 kt. Seas 27 ft.
.THU...W wind 20 kt. Seas 20 ft.

$$

PKZ175-180115-
Seguam Island to Adak Bering Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING THROUGH TONIGHT...

.TODAY...S wind 40 kt increasing to 50 kt in the afternoon. Seas
16 ft.
.TONIGHT...S wind 55 kt. Seas 23 ft. Rain.
.MON...SW wind 40 kt. Seas 19 ft. Rain.
.MON NIGHT...SW wind 40 kt. Seas 24 ft.
.TUE THROUGH WED...SW wind 35 kt. Seas 23 ft.
.THU...W wind 20 kt. Seas 16 ft.

$$

PKZ176-180115-
Seguam Island to Adak Pacific Side-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...SW wind 35 kt becoming S 45 kt in the afternoon. Seas 11 ft
building to 17 ft in the afternoon.
.TONIGHT...S wind 55 kt. Seas 25 ft building to 31 ft after midnight.
Rain.
.MON...SW wind 50 kt becoming W 35 kt in the afternoon. Seas 31 ft. 
Rain.
.MON NIGHT...W wind 35 kt. Seas 24 ft.
.TUE...SW wind 35 kt. Seas 22 ft.
.WED...SW wind 35 kt. Seas 30 ft.
.THU...W wind 25 kt. Seas 20 ft.

$$

PKZ177-180115-
Adak to Kiska-
345 AM AKST Sun Dec 17 2017

...STORM WARNING THROUGH TONIGHT...

.TODAY...S wind 55 kt. Seas 20 ft building to 29 ft in the afternoon.
Rain.
.TONIGHT...S wind 55 kt becoming SW 40 kt after midnight. Bering side,
seas 29 ft subsiding to 23 ft after midnight. Pacific side, seas 32 ft.
Rain.
.MON...SW wind 45 kt. Seas 27 ft. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 29 ft.
.TUE...SW wind 40 kt. Seas 27 ft.
.WED...W wind 35 kt. Seas 27 ft.
.THU...W wind 30 kt. Seas 19 ft.

$$

PKZ178-180115-
Kiska to Attu-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TODAY...

.TODAY...S wind 55 kt. Seas 32 ft. Rain.
.TONIGHT...SW wind 35 kt increasing to 45 kt after midnight. Seas
29 ft. Snow showers.
.MON...SW wind 45 kt. Seas 32 ft. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 32 ft.
.TUE...SW wind 40 kt. Seas 27 ft.
.WED...W wind 30 kt. Seas 27 ft.
.THU...W wind 30 kt. Seas 18 ft.

$$

PKZ179-180115-
Pribilof Islands Near Shore Waters-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...NW wind 30 kt. Seas 13 ft.
.TONIGHT...S wind 40 kt increasing to 50 kt after midnight. Seas
13 ft building to 24 ft after midnight. Rain with snow.
.MON...S wind 50 kt becoming SW 30 kt in the afternoon. Seas 29 ft. 
Rain and snow.
.MON NIGHT...SW wind 35 kt. Seas 21 ft.
.TUE...SW wind 35 kt. Seas 26 ft.
.WED THROUGH THU...S wind 30 kt. Seas 26 ft.

$$

PKZ180-180115-
Kuskokwim Delta and Etolin Strait-
345 AM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY...

.TODAY...NW wind 35 kt. Seas 13 ft. Freezing spray.
.TONIGHT...W wind 25 kt becoming S 40 kt after midnight. Seas 9 ft. 
Freezing spray.
.MON...S wind 45 kt. Seas 14 ft building to 19 ft in the afternoon. 
Rain and snow.
.MON NIGHT...SW wind 40 kt. Seas 18 ft.
.TUE...SW wind 35 kt. Seas 16 ft.
.WED...S wind 30 kt. Seas 15 ft.
.THU...SE wind 30 kt. Seas 15 ft.

$$

PKZ181-180115-
North and West of Nunivak Island-
345 AM AKST Sun Dec 17 2017

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...NW wind 30 kt. Seas 12 ft. Freezing spray.
.TONIGHT...S wind 30 kt becoming SE 45 kt after midnight. Seas 7 ft 
building to 13 ft after midnight. Freezing spray. Snow.
.MON...S wind 45 kt. Seas 21 ft. Rain and snow.
.MON NIGHT...SW wind 30 kt. Seas 17 ft.
.TUE...SW wind 35 kt. Seas 19 ft.
.WED THROUGH THU...SE wind 30 kt. Seas 20 ft.

$$

PKZ185-180115-
Saint Matthew Island Waters-
345 AM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT...

.TODAY...E of Saint Matthew Island, NW wind 30 kt becoming SW 20 kt 
in the afternoon. W of Saint Matthew Island, SW wind 25 kt becoming 
SE 45 kt in the afternoon. Seas 9 ft. Freezing spray. Snow.
.TONIGHT...SE wind 45 kt E of Saint Matthew Island... SE 50 kt W of 
Saint Matthew Island. Seas 24 ft. Freezing spray. Snow and rain.
.MON...S wind 45 kt diminishing to 35 kt in the afternoon. Seas 24 
ft. Snow with rain.
.MON NIGHT...S wind 40 kt. Seas 27 ft.
.TUE...SW wind 40 kt. Seas 31 ft.
.WED THROUGH THU...SE wind 30 kt. Seas 22 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion...CORRECTED
National Weather Service Anchorage AK
935 AM AKST Fri Dec 15 2017

.ANALYSIS AND UPPER LEVELS...
Showers are beginning to taper off across much of Southcentral
Alaska this morning as a disturbance along the North Gulf Coast
pushes inland and weakens, with the bulk of the remaining shower
activity limited to northeastern Prince William Sound from Valdez
to Cordova. In the upper levels, the western North America ridge
continues to break down as a weak trough lifts through the
northeastern Gulf, leaving fairly weak onshore flow focused over
the southern mainland. A sprawling low complex centered north of
Adak anchors a longwave trough encompassing much of eastern Russia
and the Bering Sea. An occluded front extends eastward from this
low center across the Bering and into the far southwestern Gulf,
with another deep low spinning up along the front just north of
Cold Bay. This front is spreading gale force winds and a mix of
rain and snow over much of the Bering from the Pribilof Islands to
the Akpen as it bears down on Greater Bristol Bay and the south
end of Kodiak Island.

&&

.MODEL DISCUSSION...
Models remain in excellent agreement through the weekend with
respect to the large scale pattern as the Bering trough shifts
eastward into over the Gulf and mainland Alaska. This will allow
the cooling trend to continue through Sunday and beyond, with
shower activity remaining mostly confined to coastal locations.
There is also reasonable agreement on the smaller scale features,
the most significant of which is the low progged to form along
the front over the western Gulf tonight. Stuck closer to the GFS
for this system as it still represents somewhat of a middle ground
solution to account for some of the subtle positional differences.

&&

.AVIATION...
PANC...The wind forecast will be a bit challenging this afternoon
as a Turnagain Arm jet aided by an approaching front is countered
by a strong down inlet pressure gradient. The down inlet
component is expected to win out and keep light northerly surface
winds at the terminal for the bulk of the afternoon, though gusty
southeast winds may still periodically make it into West
Anchorage. Given the expected northerly surface flow, low level
wind shear will develop by 21z as strong southeast winds move in
above the surface. Strong downslope flow should keep the terminal
dry through this evening, though some showers may still be
observed in the vicinity, with VFR conditions prevailing through
the TAF period.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A strong front will push northeastward across the Gulf and
Southcentral Alaska today. Precipitation will spread over the area
with this system. Most of this will fall along the coast, with
some down-slope drying for many inland areas. A triple point low
will develop near Kodiak City early this afternoon, and work its
way into Prince William Sound (PWS) tonight. Down-slope impacts
will diminish as the low moves into PWS, and this will likely
bring snow to the Anchorage area and the Matanuska valley late
tonight and early Saturday morning. There is an upper level short-
wave that moves through late Saturday morning into the afternoon
that will bring another good chance of snow. On Saturday and
Saturday night, the upper level low (currently centered over the
central Bering Sea) will push into southwest Alaska. This will
usher in a colder air mass. The cyclonic flow with this low will
keep chances of showers over the area Saturday night.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...
A surface low pushes a front south to north through the afternoon
bringing a band of snow along the boundary as it moves across.
Temperatures moderate into the mid 30s along coastal Bristol Bay
and areas along the Aleutian range which will change snow over to
rain before the front passes to the north. Strong low level
southeasterly flow limits precipitation along west facing slopes,
therefore accumulations were adjusted to reflect highest amounts
inland. The air mass remains saturated near the surface overnight
Friday allowing for patchy fog to develop as temperatures cool
through Saturday morning. Areas along the Aleutian Range may
experience dense fog as steeper temperature inversions set up just
off the surface.

Sunday cold air advection returns across the southwest as the low
along the southwest coast dives toward the Gulf. Winds shift to
the northwest on the backside of the low with gusty conditions
along coastal locations as the pressure gradient is squeezed
between the exiting low and a ridge shifting to the east Bering.
Isolated to scattered showers continue across the region through
the weekend as weak upper level waves propagate from the west as
the trough slowly progresses to the Gulf.

&&

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

The low over the western Bering drives an active weather pattern
through Saturday night as it moves strong waves of energy through
the upper levels. This currently stacked system sends a stronger
wave across the eastern Bering today which closes off a triple
point low which then becomes the dominant center later today. The
upper low slowly tracks east through the weekend and meanders
slightly north on Saturday. Expect frequent directional wind
shifts as two surface low pressure systems remain active through
Saturday. Cold air advects along the backside low's core with the
colder air moving off of Kamchatka. Upper level waves rotating
around the flow keeps scattered showers ongoing through the
upcoming weekend. Cooling temperatures aloft keeps showers
predominantly snow across the northern Bering Friday night into
Saturday with a mix of rain and snow south of the Pribilof Islands.

The next significant front moves to the western half of the Bering
late in the weekend. This system will bring moderate rain and
gusty southerly gales along its boundary as it swiftly makes
progress through early Monday.

&&

.LONG TERM FORECAST (Days 3 through 7...Sun through Thu)...
The long term will continue to see rather active weather, though
cooler (more seasonable) temperatures should move back in.
A fairly broad trough will slide through the area Sun into Mon.
There are several pieces of energy within this trough that could
produce precipitation. Let's start where there is the most
certainty...the Gulf Coast. A potent surface front and persistent
onshore flow will continue to keep things very wet from Seward
over to Yakutat. Gusty winds will also accompany the front.
Precipitation should be mostly rain right along the coast, but
inland just a short ways, there will be enough cold air
(especially over the higher terrain like Thompson Pass) to see the
rain turn to snow. Where there is less certainty is across Cook
Inlet. There is likely a shot for some snow Sat night into Sun
morning. There is an outside chance that this snow could linger
into Sun a bit longer resulting in a few inches of accumulation.

Meanwhile on Sun into Mon over the Bering, a deep "bomb" cyclone
will develop. This will bring storm-force winds and rain/snow to
much of the Central and Western Aleutians. In response to this
system, a sharp short-wave ridge will build over the Eastern
Bering. This short-wave ridge will push quickly over the mainland
on Mon. It will have a little cold air to work with over Western
AK, so expect some gusty northwest winds to push through the
typical spots (Barren Islands, Shelikof Strait). The front
associated with the 950 mb "bomb" cyclone will slam into Western
AK late Mon into Tue. Precipitation will start as snow, but should
transition to rain across the southern portion of the area. Stay
tuned to this system as some of the initial snow could be quite
heavy.

Model uncertainty starts to build as this front slides towards
South Central AK. Some models depict it bringing a healthy shot of
snow to the Cook Inlet, while others show it washing out before it
makes it that far east. Then uncertainty really begins to increase
towards the end of the week. All models hint at a resurgence of
the North American Ridge (think weather pattern for first half of
Dec), which would once again allow a deep fetch of moisture and
warm air to move over the state from the N Pacific. Exactly where
the ridge sets up will be critical for nailing down sensible
weather at the surface.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory 161
MARINE...Storm Warning 119
		 Gale Warning 120 125 130 131 132 136 137 155 165 170 172
					  173 174 175 176 177 178 179 180 181 185 351
					  352 411 412 414

&&

SYNOPSIS AND MODEL DISCUSSION...CB
AVIATION...CB
SOUTHCENTRAL ALASKA...BL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KH
LONG TERM...MSO

SPECIAL WEATHER STATEMENT
National Weather Service ANCHORAGE AK
335 PM AKST Fri Dec 15 2017

AKZ155-161-160800-
Kuskokwim Delta-Bristol Bay-
Including the cities of Bethel, Hooper Bay, Nunivak Island,
King Salmon, Dillingham, Naknek, and Pilot Point
335 PM AKST Fri Dec 15 2017

...Possible High Surf this Evening...

A potent, tightly-wrapped low will move north paralleling the
coast tonight. This will bring breezy conditions along the coast
with south to southwest winds gusting to near 35 mph. In addition
to the winds, this system will also bring a short period of higher
onshore swell. The winds and waves will work in tandem to make
for some rough surf along the coast through this evening. Water
levels could rise 1 to 2 feet above high astronomical tide (grass
line) in isolated locations, but we don't expect widespread
impacts. Boaters should exercise caution in the surf zone. Winds
and waves will subside quickly by Saturday morning.

Please check your latest forecast at www.weather.gov/anchorage.