Storm Warning 179, NWS Anchorage, AK

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.

$$

870 
FZAK52 PAFC 172353
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
253 PM 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.

PKZ199-181315-
253 PM AKST Sun Dec 17 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 961 mb low 250 nm north of Attu deepens to 945 mb 415 nm north 
of Attu Mon morning then shifts to 50 nm west of Gambell at 969 
mb for Tue afternoon. The associated fronts sweep the Bering and 
Aleutians through Tue afternoon. A 983 mb low moves to 415 nm 
southwest of Attu by Tue afternoon.

$$

PKZ150-181315-
South of the AK Peninsula Sitkinak to Castle Cape-
253 PM AKST Sun Dec 17 2017

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 15 ft.
.MON...W wind 20 kt becoming SW 30 kt in the afternoon. Seas 10 ft.
.MON NIGHT...S wind 35 kt. Seas 14 ft.
.TUE...SW wind 35 kt. Seas 16 ft.
.TUE NIGHT...SW wind 25 kt. Seas 14 ft.
.WED...S wind 25 kt. Seas 10 ft.
.THU...SE wind 30 kt. Seas 19 ft.
.FRI...SE wind 20 kt. Seas 19 ft.

$$

PKZ155-181315-
South of the AK Peninsula Castle Cape to Cape Sarichef-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...NW wind 35 kt becoming W 25 kt after midnight. Seas
13 ft.
.MON...SW wind 30 kt becoming S 40 kt in the afternoon, Seas 12 ft
building to 17 ft in the afternoon. From the Shumagin Islands E,
SW wind 30 kt, Seas 10 ft.
.MON NIGHT...S wind 40 kt. Seas 23 ft. From the Shumagin Islands
E, seas 13 ft building to 18 ft after midnight.
.TUE...SW wind 30 kt. Seas 21 ft.
.TUE NIGHT...SW wind 25 kt. Seas 15 ft.
.WED...S wind 25 kt. Seas 13 ft.
.THU...SE wind 25 kt. Seas 17 ft.
.FRI...SE wind 20 kt. Seas 17 ft.

$$

PKZ160-181315-
Bristol Bay-
253 PM AKST Sun Dec 17 2017

...GALE WARNING MONDAY NIGHT...

.TONIGHT...NW wind 25 kt diminishing to 15 kt after midnight. Seas 9 ft.
Freezing spray.
.MON...S wind 15 kt increasing to 30 kt in the afternoon. Seas 7 ft.
.MON NIGHT...S wind 35 kt. Seas 11 ft. Rain.
.TUE AND TUE NIGHT...SW wind 30 kt. Seas 12 ft.
.WED...S wind 20 kt. Seas 9 ft.
.THU...E wind 25 kt. Seas 7 ft.
.FRI...SE wind 20 kt. Seas 8 ft.

$$

PKZ165-181315-
Port Heiden to Cape Sarichef-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.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.
.MON NIGHT...S wind 40 kt diminishing to 30 kt after midnight. 
Seas 20 ft. Rain.
.TUE...SW wind 35 kt. Seas 19 ft.
.TUE NIGHT...SW wind 30 kt. Seas 19 ft.
.WED THROUGH THU...SE wind 25 kt. Seas 14 ft.
.FRI...SE wind 15 kt. Seas 11 ft.

$$

PKZ170-181315-
Cape Sarichef to Nikolski Bering Side-
253 PM AKST Sun Dec 17 2017

...STORM WARNING MONDAY...

.TONIGHT...S wind 35 kt increasing to 45 kt after midnight. Seas 10 ft
building to 15 ft after midnight.
.MON...S wind 50 kt. Seas 23 ft. Rain.
.MON NIGHT...SW wind 35 kt. Seas 20 ft.  and rain.
.TUE...SW wind 35 kt. Seas 22 ft.
.TUE NIGHT...SW wind 30 kt. Seas 22 ft.
.WED...S wind 35 kt. Seas 17 ft.
.THU...S wind 30 kt. Seas 16 ft.
.FRI...SW wind 15 kt. Seas 11 ft.

$$

PKZ171-181315-
Unalaska Bay-
253 PM AKST Sun Dec 17 2017

...GALE WARNING MONDAY...

.TONIGHT...S wind 15 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 25 kt. Seas 4 ft. Rain.
.TUE...SW wind 25 kt. Seas 4 ft.
.TUE NIGHT...SW wind 20 kt. Seas 3 ft.
.WED...S wind 25 kt. Seas 3 ft.
.THU...S wind 20 kt. Seas 3 ft.
.FRI...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ172-181315-
Cape Sarichef to Nikolski Pacific Side-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 25 kt becoming S 40 kt after midnight. Seas 9 ft 
building to 14 ft after midnight.
.MON...S wind 45 kt. Seas 20 ft building to 27 ft in the afternoon. 
Rain.
.MON NIGHT...SW wind 45 kt diminishing to 30 kt after midnight.
Seas 27 ft. Rain.
.TUE...SW wind 30 kt. Seas 20 ft.
.TUE NIGHT...SW wind 25 kt. Seas 17 ft.
.WED...S wind 35 kt. Seas 19 ft.
.THU...S wind 25 kt. Seas 19 ft.
.FRI...W wind 15 kt. Seas 13 ft.

$$

PKZ173-181315-
Nikloski to Seguam Island Bering Side-
253 PM AKST Sun Dec 17 2017

...STORM WARNING THROUGH MONDAY...

.TONIGHT...S wind 40 kt increasing to 50 kt after midnight. Seas 15 ft
building to 21 ft after midnight. Rain.
.MON...S wind 50 kt becoming SW 40 kt in the afternoon. Seas 25 ft. 
Rain.
.MON NIGHT...SW wind 40 kt. Seas 21 ft.
.TUE...SW wind 35 kt. Seas 24 ft.
.TUE NIGHT...SW wind 30 kt. Seas 22 ft.
.WED...S wind 40 kt. Seas 22 ft.
.THU...W wind 25 kt. Seas 16 ft.
.FRI...W wind 15 kt. Seas 10 ft.

$$

PKZ174-181315-
Nikolski to Seguam Island Pacific Side-
253 PM AKST Sun Dec 17 2017

...STORM WARNING THROUGH MONDAY...

.TONIGHT...S wind 40 kt increasing to 50 kt after midnight. Seas 15 ft
building to 21 ft after midnight.
.MON...S wind 50 kt diminishing to 40 kt in the afternoon. Seas 31 ft.
Rain.
.MON NIGHT...W wind 30 kt. Seas 26 ft.
.TUE AND TUE NIGHT...SW wind 30 kt. Seas 20 ft.
.WED...S wind 40 kt. Seas 27 ft.
.THU...W wind 20 kt. Seas 20 ft.
.FRI...W wind 15 kt. Seas 14 ft.

$$

PKZ175-181315-
Seguam Island to Adak Bering Side-
253 PM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT...

.TONIGHT...S wind 50 kt. Seas 22 ft. Rain.
.MON...SW wind 45 kt. Seas 19 ft. Rain.
.MON NIGHT...SW wind 40 kt. Seas 25 ft.
.TUE...W wind 35 kt. Seas 25 ft.
.TUE NIGHT...SW wind 40 kt. Seas 21 ft.
.WED...SW wind 45 kt. Seas 22 ft.
.THU...W wind 20 kt. Seas 16 ft.
.FRI...W wind 15 kt. Seas 8 ft.

$$

PKZ176-181315-
Seguam Island to Adak Pacific Side-
253 PM AKST Sun Dec 17 2017

...STORM WARNING THROUGH MONDAY...

.TONIGHT...S wind 50 kt. Seas 24 ft building to 32 ft after
midnight. Rain.
.MON...SW wind 50 kt becoming W 35 kt in the afternoon. Seas 32
ft. Rain.
.MON NIGHT...SW wind 35 kt. Seas 24 ft.
.TUE...W wind 30 kt. Seas 23 ft.
.TUE NIGHT...SW wind 40 kt. Seas 18 ft.
.WED...SW wind 45 kt. Seas 27 ft.
.THU...W wind 25 kt. Seas 20 ft.
.FRI...W wind 20 kt. Seas 12 ft.

$$

PKZ177-181315-
Adak to Kiska-
253 PM AKST Sun Dec 17 2017

...STORM WARNING TONIGHT...

.TONIGHT...S wind 50 kt diminishing to 35 kt after midnight. Seas 27
ft Bering side...31 ft Pacific side. Rain.
.MON...SW wind 45 kt. Seas 26 ft. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 29 ft. Snow showers.
.TUE...W wind 35 kt. Seas 25 ft.
.TUE NIGHT...S wind 45 kt. Seas 29 ft.
.WED...W wind 45 kt. Seas 30 ft.
.THU...W wind 30 kt. Seas 19 ft.
.FRI...W wind 15 kt. Seas 10 ft.

$$

PKZ178-181315-
Kiska to Attu-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 27 ft. Snow showers.
.MON...SW wind 45 kt. Seas 31 ft. Freezing spray. Snow showers.
.MON NIGHT...W wind 45 kt. Seas 32 ft. Freezing spray. Snow
showers.
.TUE...SW wind 40 kt. Seas 27 ft.
.TUE NIGHT...SW wind 45 kt. Seas 29 ft.
.WED...W wind 30 kt. Seas 26 ft.
.THU...W wind 30 kt. Seas 18 ft.
.FRI...W wind 15 kt. Seas 10 ft.

$$

PKZ179-181315-
Pribilof Islands Near Shore Waters-
253 PM AKST Sun Dec 17 2017

...STORM WARNING MONDAY...

.TONIGHT...S wind 20 kt increasing to 45 kt after midnight. Seas 12 
ft building to 23 ft after midnight. Rain.
.MON...S wind 50 kt becoming SW 30 kt in the afternoon. Seas 28 ft. 
Rain.
.MON NIGHT...SW wind 30 kt increasing to 40 kt after midnight. Seas 
22 ft.
.TUE...SW wind 40 kt. Seas 25 ft.
.TUE NIGHT...SW wind 30 kt. Seas 25 ft.
.WED...S wind 35 kt. Seas 27 ft.
.THU...S wind 30 kt. Seas 25 ft.
.FRI...SW wind 15 kt. Seas 9 ft.

$$

PKZ180-181315-
Kuskokwim Delta and Etolin Strait-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...W wind 25 kt becoming S 40 kt after midnight. Seas 9
ft. Rain.
.MON...S wind 45 kt. Seas 13 ft building to 19 ft in the
afternoon. Rain.
.MON NIGHT...S wind 40 kt becoming SW 30 kt after midnight. Seas
18 ft. Rain.
.TUE...SW wind 35 kt. Seas 17 ft.
.TUE NIGHT...SW wind 30 kt. Seas 16 ft.
.WED...S wind 30 kt. Seas 15 ft.
.THU...SE wind 30 kt. Seas 15 ft.
.FRI...SE wind 20 kt. Seas 11 ft.

$$

PKZ181-181315-
North and West of Nunivak Island-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY...

.TONIGHT...W wind 20 kt becoming SE 45 kt after midnight. Seas 6
ft building to 12 ft after midnight. Snow and rain.
.MON...S wind 45 kt. Seas 21 ft. Rain and snow.
.MON NIGHT...SW wind 30 kt. Seas 16 ft.
.TUE AND TUE NIGHT...SW wind 35 kt. Seas 19 ft.
.WED...S wind 35 kt. Seas 20 ft.
.THU...SE wind 30 kt. Seas 20 ft.
.FRI...SE wind 15 kt. Seas 9 ft.

$$

PKZ185-181315-
Saint Matthew Island Waters-
253 PM AKST Sun Dec 17 2017

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...Wind SE wind 45 kt. Seas 24 ft. Rain and snow.
.MON...S wind 45 kt E of Saint Matthew Island...S 35 kt W of Saint
Matthew Island. Seas 23 ft. Rain.
.MON NIGHT...S wind 40 kt. Seas 27 ft.
.TUE...SW wind 40 kt. Seas 31 ft.
.TUE NIGHT...SW wind 35 kt. Seas 26 ft.
.WED...S wind 35 kt. Seas 27 ft.
.THU...SE wind 30 kt. Seas 22 ft.
.FRI...S wind 15 kt. Seas 11 ft.

$$

011 
FZAK52 PAFC 181227
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
327 AM AKST Mon Dec 18 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.

PKZ199-190115-
327 AM AKST Mon Dec 18 2017
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 946 mb low 380 nm northwest of Shemya will move to the northern
Bering Tue morning. An associated strong front in the central 
Aleutians will move over the eastern Aleutians and dissipate by 
Tue afternoon. A 992 mb low will move to 80 nm west of Shemya Tue
morning, then move to 160 nm northeast of Shemya at 976 mb Wed 
morning.

$$

PKZ150-190115-
South of the AK Peninsula Sitkinak to Castle Cape-
327 AM AKST Mon Dec 18 2017

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...W wind 20 kt becoming SW 30 kt by late morning. Seas 10 ft.
.TONIGHT...S wind 35 kt. Seas 14 ft.
.TUE...SW wind 35 kt diminishing to 25 kt in the afternoon. Seas
16 ft.
.TUE NIGHT...SW wind 25 kt. Seas 14 ft.
.WED...S wind 25 kt. Seas 10 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 29 ft.

$$

PKZ155-190115-
South of the AK Peninsula Castle Cape to Cape Sarichef-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 30 kt becoming S 40 kt in the afternoon. Seas 12
ft building to 17 ft in the afternoon. From the Shumagin Islands E, 
SW wind 30 kt, Seas 10 ft.
.TONIGHT...S wind 40 kt. Seas 23 ft. From the Shumagin Islands E,
seas 13 ft building to 18 ft after midnight. Rain showers.
.TUE...SW wind 25 kt. From the Shumagin Islands E, SW wind 35 kt
diminishing to 25 kt in the afternoon. Seas 21 ft.
.TUE NIGHT...SW wind 25 kt. Seas 15 ft.
.WED...S wind 25 kt. Seas 13 ft.
.THU...E wind 40 kt. Seas 26 ft.
.FRI...SE wind 30 kt. Seas 26 ft.

$$

PKZ160-190115-
Bristol Bay-
327 AM AKST Mon Dec 18 2017

...GALE WARNING TONIGHT...

.TODAY...S wind 30 kt. Seas 8 ft.
.TONIGHT...S wind 35 kt. Seas 11 ft. Rain.
.TUE...SW wind 30 kt. Seas 11 ft.
.TUE NIGHT...SW wind 30 kt. Seas 12 ft.
.WED...S wind 20 kt. Seas 9 ft.
.THU THROUGH FRI...E wind 40 kt. Seas 12 ft.

$$

PKZ165-190115-
Port Heiden to Cape Sarichef-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...S wind 30 kt increasing to 45 kt by mid morning. 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.
.TONIGHT...S wind 40 kt. Seas 20 ft. Rain.
.TUE...SW wind 35 kt. Seas 19 ft.
.TUE NIGHT...SW wind 30 kt. Seas 19 ft.
.WED...S wind 30 kt. Seas 15 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 13 ft.

$$

PKZ170-190115-
Cape Sarichef to Nikolski Bering Side-
327 AM AKST Mon Dec 18 2017

...STORM WARNING TODAY...

.TODAY...S wind 50 kt. Seas 23 ft. Rain.
.TONIGHT...SW wind 35 kt. Seas 20 ft.  and rain.
.TUE...SW wind 35 kt. Seas 22 ft.
.TUE NIGHT...SW wind 30 kt. Seas 22 ft.
.WED...S wind 35 kt. Seas 19 ft.
.THU...E wind 30 kt. Seas 15 ft.
.FRI...W wind 20 kt. Seas 16 ft.

$$

PKZ171-190115-
Unalaska Bay-
327 AM AKST Mon Dec 18 2017

...GALE WARNING TODAY...

.TODAY...S wind 35 kt. Seas 5 ft. Rain.
.TONIGHT...SW wind 25 kt. Seas 4 ft. Rain.
.TUE...SW wind 25 kt. Seas 4 ft.
.TUE NIGHT...SW wind 20 kt. Seas 3 ft.
.WED...S wind 25 kt. Seas 4 ft.
.THU...E wind 20 kt. Seas 3 ft.
.FRI...W wind 10 kt. Seas 3 ft.

$$

PKZ172-190115-
Cape Sarichef to Nikolski Pacific Side-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 45 kt. Seas 20 ft building to 27 ft in the afternoon.
Rain.
.TONIGHT...SW wind 45 kt diminishing to 30 kt after midnight. Seas
27 ft. Rain.
.TUE...SW wind 30 kt. Seas 20 ft.
.TUE NIGHT...SW wind 25 kt. Seas 17 ft.
.WED...S wind 30 kt. Seas 18 ft.
.THU...E wind 30 kt. Seas 17 ft.
.FRI...NW wind 25 kt. Seas 18 ft.

$$

PKZ173-190115-
Nikloski to Seguam Island Bering Side-
327 AM AKST Mon Dec 18 2017

...STORM WARNING TODAY...

.TODAY...S wind 50 kt becoming SW 40 kt in the afternoon. Seas
25 ft. Rain.
.TONIGHT...SW wind 40 kt. Seas 21 ft.
.TUE...SW wind 35 kt. Seas 24 ft.
.TUE NIGHT...SW wind 30 kt. Seas 22 ft.
.WED...S wind 40 kt. Seas 21 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 16 ft.

$$

PKZ174-190115-
Nikolski to Seguam Island Pacific Side-
327 AM AKST Mon Dec 18 2017

...STORM WARNING TODAY...

.TODAY...S wind 50 kt becoming SW 40 kt in the afternoon. Seas 31 
ft. Rain.
.TONIGHT...W wind 30 kt. Seas 26 ft.
.TUE...SW wind 30 kt. Seas 22 ft.
.TUE NIGHT...SW wind 30 kt. Seas 18 ft.
.WED...S wind 40 kt. Seas 24 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 19 ft.

$$

PKZ175-190115-
Seguam Island to Adak Bering Side-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 45 kt. Seas 19 ft. Rain.
.TONIGHT...SW wind 40 kt. Seas 25 ft. Snow showers.
.TUE...W wind 35 kt. Seas 25 ft.
.TUE NIGHT...SW wind 40 kt. Seas 21 ft.
.WED...SW wind 45 kt. Seas 22 ft.
.THU THROUGH FRI...NW wind 25 kt. Seas 16 ft.

$$

PKZ176-190115-
Seguam Island to Adak Pacific Side-
327 AM AKST Mon Dec 18 2017

...STORM WARNING TODAY...

.TODAY...SW wind 50 kt becoming W 35 kt in the afternoon. Seas
32 ft. Rain.
.TONIGHT...SW wind 35 kt. Seas 24 ft. Snow showers.
.TUE...W wind 30 kt. Seas 23 ft.
.TUE NIGHT...SW wind 40 kt. Seas 18 ft.
.WED...SW wind 45 kt. Seas 27 ft.
.THU THROUGH FRI...NW wind 30 kt. Seas 19 ft.

$$

PKZ177-190115-
Adak to Kiska-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 45 kt. Seas 26 ft. Snow showers.
.TONIGHT...W wind 45 kt. Seas 29 ft. Snow showers.
.TUE...W wind 35 kt. Seas 25 ft.
.TUE NIGHT...S wind 45 kt. Seas 29 ft.
.WED...W wind 45 kt. Seas 30 ft.
.THU...W wind 25 kt. Seas 22 ft.
.FRI...W wind 25 kt. Seas 13 ft.

$$

PKZ178-190115-
Kiska to Attu-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...SW wind 45 kt. Seas 31 ft. Snow showers.
.TONIGHT...W wind 45 kt. Seas 32 ft. Snow showers.
.TUE...W wind 40 kt. Seas 27 ft. Snow.
.TUE NIGHT...SW wind 45 kt. Seas 29 ft.
.WED THROUGH THU...W wind 30 kt. Seas 25 ft.
.FRI...W wind 20 kt. Seas 15 ft.

$$

PKZ179-190115-
Pribilof Islands Near Shore Waters-
327 AM AKST Mon Dec 18 2017

...STORM WARNING TODAY...

.TODAY...S wind 50 kt becoming SW 40 kt in the afternoon. Seas
28 ft. Rain.
.TONIGHT...SW wind 40 kt. Seas 22 ft. Snow showers.
.TUE...SW wind 40 kt. Seas 25 ft.
.TUE NIGHT...SW wind 30 kt. Seas 25 ft.
.WED...S wind 35 kt. Seas 30 ft.
.THU...SE wind 30 kt. Seas 22 ft.
.FRI...W wind 15 kt. Seas 14 ft.

$$

PKZ180-190115-
Kuskokwim Delta and Etolin Strait-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...S wind 45 kt. Seas 13 ft building to 19 ft in the afternoon.
Rain.
.TONIGHT...S wind 40 kt becoming SW 30 kt after midnight. Seas 18 
ft. Rain.
.TUE...SW wind 35 kt. Seas 17 ft.
.TUE NIGHT...SW wind 30 kt. Seas 16 ft.
.WED...S wind 30 kt. Seas 17 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 17 ft.

$$

PKZ181-190115-
North and West of Nunivak Island-
327 AM AKST Mon Dec 18 2017

...GALE WARNING TODAY AND TUESDAY...

.TODAY...S wind 45 kt. Seas 21 ft. Rain and snow.
.TONIGHT...SW wind 30 kt. Seas 16 ft. Snow.
.TUE...S wind 35 kt. Seas 19 ft.
.TUE NIGHT...SW wind 35 kt. Seas 18 ft.
.WED THROUGH THU...SE wind 35 kt. Seas 22 ft.
.FRI...SE wind 35 kt. Seas 16 ft.

$$

PKZ185-190115-
Saint Matthew Island Waters-
327 AM AKST Mon Dec 18 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...S wind 45 kt E of Saint Matthew Island...S 35 kt W of
Saint Matthew Island. Seas 23 ft. Rain.
.TONIGHT...S wind 40 kt. Seas 27 ft.
.TUE...SW wind 40 kt. Seas 31 ft.
.TUE NIGHT...SW wind 35 kt. Seas 26 ft.
.WED...S wind 35 kt. Seas 27 ft.
.THU...SE wind 30 kt. Seas 22 ft.
.FRI...E wind 25 kt. Seas 15 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
446 PM AKST Fri Dec 15 2017

.ANALYSIS AND UPPER LEVELS...

The atmosphere is becoming more dynamic again across Southcentral
as a large Bering low shifts east along a very difluent upper
level North Pacific jet stream which is steamrolling northeast
into the Gulf of Alaska. A solid gale force (40 knots) front
associated with the aforementioned upper level jet was captured
moving across Kodiak into the western Gulf of Alaska at noon. This
has already brought over an inch of rain to parts of Kodiak
Island, and this rain will quickly spread north toward the Gulf
Coast later today. Over the Bering Sea, there is a well-defined
occluded low moving north across Bristol Bay toward Nunivak
Island. This is bringing strong gale force winds and rain/snow to
most of the Southwest coast. There is another closed low center
just north of Adak Island supporting another region of gale force
winds.

&&

.MODEL DISCUSSION...

The numerical models have now come into great agreement with the
strong front moving toward the North Gulf Coast this evening. Over
the past few days, there was quite a lot of disagreement among
the models with the potential for a closed low along the coast.
Some models (mostly the GFS) were very strong with the closed low
scenario whereas the ECMWF and Canadian were faster and had more
of a trough axis instead of a closed low...which also featured a
meso low moving north through Cook Inlet. Now all models are in
agreement with the latter solution, so winds are now expected to
come down through Prince William Sound, down Passage Canal, and
then down Turnagain Arm. Some winds will also come through
Anchorage from the southeast overnight as the front passes
through. In terms of precipitation, the regime is expected to
become showery behind the front given the rather impressive
instability, so models are not in good agreement with that and are
expected to remain so for the next couple days.

&&

.AVIATION...
PANC...A front approaching the coast will bring threats for
flurries and possibly a little light rain this evening and early
tonight. After the front passes some southeast winds are expected
to impact the terminal with the chance for a mix of rain and snow
which may drop CIGS/VIS to MVFR for a brief time. After that,
expect snow shower chances through the day Saturday as unstable
air moves over the terminal.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The strong front is pushing in to the Gulf of Alaska with a triple
point low starting to form south of Kodiak Island. A short wave is
ejecting out of the base of the low now over the Alaska Peninsula
heading toward Shelikof Strait then up Cook Inlet tonight. Rain
will spread from Kodiak east into Prince William Sound this
evening and mix with or change to snow in the northern Sound and
especially the higher elevations tonight. The short wave rapidly
moving up the Inlet will complicate the forecast, particularly
the wind. The Turnagain Arm and Hillside wind should be
problematic. The current model solutions don't capture the
magnitude of the current wind, We're also concerned about another
shot of wind associated with the shortwave that is not captured
well overnight into tomorrow morning. We're still anticipating the
typical downslope drying across the coastal mountains as the
front moves through and with the strong wind again overnight and
tomorrow. Another concern is how much precipitation makes it into
the Copper River Basin. At this point it looks like the downslope
drying across the Chugach should prevent snow in Glennallen but
expect snow along the Alaska Range and Talkeetna Mountains in the
upslope flow. The Susitna Valley, once the flow becomes southerly,
should see a shot of snow along the Alaska Range and north of
Talkeetna, though not heavy.

&&

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

A strong low continues to move up the Kuskokwim coast this
afternoon, which is showing up nicely on the Bethel Doppler
radar, with a strongly occluded front extending east through the
lower Kuskokwim Delta. Strong wind gusts have been observed in
advance of the front, with winds quickly dropping off following
frontal passage allowing for some rain showers to develop or mix
in with the snow, as warmer air surges inland in the lower levels.

Meanwhile, robust cold advection in the mid-levels is quickly
moving inland south of these features, with plenty of instability
(relatively speaking) for some graupel or small hail to develop
based on the radar and observational data across eastern Bristol
Bay and adjacent locations. Additionally, numerical guidance
continues to show steep mid-level lapse rates approaching 9 deg.
C/km and total totals above 60. Vort maxes rotation around this
the trough axis that extends from a western Bering low to the
Kuskokwim low may provide enough of a burst in ascent aloft to aid
in updraft strength to possible allow a stray lightning strike or
two to develop. However, temporal and coverage uncertainties
precluded this being adding to the coastal land or marine
forecast zones.

As the western Bering low heads towards the AKPEN by Sunday
morning, the Kuskokwim low will rotate back southward with the
pair exhibiting a Fujiwhara effect as they depart the region by
Sunday afternoon. Until then, showery precipitation will continue
to dominate your weather

&&

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

Quite an interesting setup is in place as a 971mb low north of
Adak, which has been "wobbling in place" for the last 36 hours or
so has started its southeastward journey. Meanwhile, a 962 mb low
near Nunivak Island will halt its northward progression, and make
a U-turn as it starts to be influenced more by the incoming low.
These systems will rotate around each other in a unique fashion as
described above, with strong cold advection continuing along
their southern and western flanks. This has been quite evident in
the observational data, with cloud top cooling also noted on the
infra-red satellite loop. Models continue to show decent
instability for this time of year, and given the instability
parameters described about, an isolated thunderstorm can't be
ruled out. However, graupel or small hail is a distinct
possibility with any heavier shower that develops.

A transitory ridge will shift from west to east across the
Aleutians towards the Pribilof Islands for tomorrow, as todays
systems depart the region and a low rapidly deepens to 944 mb
across the western Bering by Sunday morning, with an attendant
cold front stretching south. This front will impact western
portions of the area with storm near storm force sustained winds
developing, and seas rapidly increasing in height given a
favorable fetch augmented by the baroclinic winds.

&&

.LONG TERM FORECAST (Days 3 through 7...Mon through Fri)...
The weather picture for next week is starting to become clearer.
There are 2 major features to focus on. The first will be a very
deep low over the Western Bering Mon and its associated front. The
low will bottom out somewhere in the 945 mb range late Sun into
early Mon. But its trek across the Bering will impact the whole
area to start the week. Along the front, storm-force winds and
moderate rain should be expected through the Aleutian chain as it
pushes from west to east. Behind the front, expect widespread
showers (transitioning from rain to snow) and gusty winds as cold
air wraps around. As the front impacts SW AK, it will start out as
snow with some gusty winds. This could create some difficult
travel conditions, so stay tuned to this portion of the forecast.
But with warm air and onshore flow, the snow should transition
fairly quickly to rain. Today models have come into better
agreement that this feature will hold together long enough to make
it into the Cook Inlet region. If a few ingredients hold together,
this could have the making of a decent snow event for the
Anchorage area. But there is still a lot of time and variables
that have to match before there is much certainty in this
solution.

The second major feature will be a building ridge over the North
Pacific to end the week. There is still abundant uncertainty as to
exactly where this feature will establish itself. On its western
edge, it will bring moderate to heavy precipitation and warm and
windy conditions. Underneath the ridge axis, it will likely be
cold and foggy. Stay tuned to the forecast to see exactly how this
pattern unfolds and what the sensible weather will be at the
surface as we move towards Christmas Weekend.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Storm 119. Gales 120 125 150 155 165 170-181 185 351 352
411-414.

&&

SYNOPSIS AND MODEL DISCUSSION...JA
SOUTHCENTRAL ALASKA...SA
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD
LONG TERM...MO