Gale Warning 695, NWS Anchorage, AK

335 
FZAK62 PAFC 281257
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
357 AM AKST Thu Dec 28 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-290215-
357 AM AKST Thu Dec 28 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 977 mb low at 47N 175E moves along the front to 49N 173E at 962
mb Fri morning then to 47N 169E at 974 mb by Sat morning. A 981 
mb low forms near 48N 171W Thu night and moves to 53N 175W at 971 
mb by Sat morning. The front moves across the Aleutians through 
Sat morning.

$$

PKZ411-290215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
357 AM AKST Thu Dec 28 2017

...STORM WARNING TONIGHT...

.TODAY...E wind 30 to 45 kt. Seas 15 to 23 ft.
.TONIGHT...NE wind 35 to 50 kt. Seas 16 to 29 ft. Snow.
.FRI...NE wind 35 to 45 kt. Seas 19 to 27 ft. Snow and rain.
.FRI NIGHT...NE wind 35 to 50 kt. Seas 21 to 27 ft.
.SAT THROUGH MON...N wind 25 to 40 kt. Seas 15 to 26 ft.

$$

PKZ412-290215-
Bering Sea Offshore 171W to 180 and North of 56N-
357 AM AKST Thu Dec 28 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...E wind 20 to 35 kt. Seas 8 to 13 ft.
.TONIGHT...E wind 25 to 35 kt. Seas 8 to 16 ft. Freezing spray n of
57n after midnight.
.FRI...NE wind 30 to 40 kt. Seas 11 to 19 ft.
.FRI NIGHT...NE wind 35 to 45 kt. Seas 14 to 22 ft.
.SAT THROUGH MON...N wind 25 to 40 kt. Seas 11 to 19 ft.

$$

PKZ413-290215-
Bering Sea Offshore 171W to 180 and South of 56N-
357 AM AKST Thu Dec 28 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...E wind 30 to 45 kt. Seas 11 to 19 ft. Snow and rain.
.TONIGHT...E wind 30 to 45 kt becoming 40 kt after midnight. Seas
13 to 21 ft. Rain and snow.
.FRI...E wind 30 to 45 kt. Seas 16 to 24 ft. Rain and snow.
.FRI NIGHT...E wind 30 to 45 kt. Seas 16 to 24 ft.
.SAT...NE wind 20 to 35 kt. Seas 12 to 20 ft.
.SUN...NW wind 10 to 25 kt. Seas 9 to 14 ft.
.MON...W wind 10 to 20 kt. Seas 8 to 13 ft.

$$

PKZ414-290215-
Bering Sea Offshore East of 171W-
357 AM AKST Thu Dec 28 2017

...GALE WARNING FRIDAY...

.TODAY...NE wind 10 to 25 kt. Seas 4 to 7 ft. Freezing spray n of 56n.
.TONIGHT...E wind 15 to 30 kt. Seas 4 to 9 ft. Freezing spray n of
56n.
.FRI...E wind 20 to 35 kt. Seas 7 to 12 ft. Freezing spray n of 56n
in the morning. Snow and rain s of 56n.
.FRI NIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft.
.SAT...N wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...S wind 10 to 25 kt. Seas 7 to 12 ft.

$$

835 
FZAK62 PAFC 290044
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
344 PM AKST Thu Dec 28 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-291500-
344 PM AKST Thu Dec 28 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

A 969 mb low at 50N 176E will move to 50N 171E at 963 mb Fri 
morning then dissipate. A 981 mb low at 48N 171W will move to 52N
174W at 972 mb Fri night then it will move to 51N 178W at 976 mb 
Sat afternoon. A 980 mb low forms near 52N 164W Fri night then it
will move to 56N 156W at 977 mb Sat afternoon. A front moves over
the Aleutians through Sat morning.

$$

PKZ411-291500-
Bering Sea Offshore West of 180 and East of the International
Dateline-
344 PM AKST Thu Dec 28 2017

...STORM WARNING TONIGHT AND FRIDAY NIGHT...

.TONIGHT...NE wind 35 to 50 kt. Seas 16 to 29 ft. Snow and rain.
.FRI...NE wind 35 to 45 kt. Seas 19 to 27 ft. Snow and rain.
.FRI NIGHT...NE wind 35 to 50 kt. Seas 21 to 27 ft. Snow and rain
showers.
.SAT...NE wind 25 to 40 kt. Seas 20 to 26 ft.
.SAT NIGHT...NE wind 25 to 40 kt. Seas 18 to 22 ft.
.SUN THROUGH MON...N wind 25 to 35 kt. Seas 15 to 21 ft.
.TUE...NE wind 15 to 25 kt. Seas 9 to 14 ft.

$$

PKZ412-291500-
Bering Sea Offshore 171W to 180 and North of 56N-
344 PM AKST Thu Dec 28 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E wind 25 to 35 kt. Seas 8 to 16 ft.
.FRI...NE wind 30 to 40 kt. Seas 11 to 19 ft.
.FRI NIGHT...NE wind 35 to 45 kt. Seas 14 to 22 ft. Snow and rain.
.SAT...NE wind 30 to 40 kt. Seas 16 to 22 ft.
.SAT NIGHT...NE wind 25 to 35 kt. Seas 16 to 21 ft.
.SUN THROUGH MON...N wind 20 to 35 kt. Seas 11 to 19 ft.
.TUE...NW wind 20 kt. Seas 9 to 12 ft.

$$

PKZ413-291500-
Bering Sea Offshore 171W to 180 and South of 56N-
344 PM AKST Thu Dec 28 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E wind 30 to 45 kt. Seas 13 to 21 ft. Rain and snow.
.FRI...E wind 30 to 45 kt. Seas 16 to 24 ft. Rain and snow.
.FRI NIGHT...E wind 30 to 45 kt. Seas 15 to 26 ft. Rain and snow
showers.
.SAT...NE wind 20 to 35 kt. Seas 12 to 20 ft.
.SAT NIGHT...NE wind 15 to 30 kt. Seas 14 to 22 ft.
.SUN...NW wind 10 to 25 kt. Seas 11 to 19 ft.
.MON THROUGH TUE...W wind 10 to 20 kt. Seas 8 to 13 ft.

$$

PKZ414-291500-
Bering Sea Offshore East of 171W-
344 PM AKST Thu Dec 28 2017

...GALE WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...E wind 15 to 30 kt. Seas 4 to 9 ft.
.FRI...E wind 20 to 35 kt. Seas 7 to 12 ft. Rain.
.FRI NIGHT...NE wind 20 to 35 kt. Seas 9 to 14 ft. Rain and snow.
.SAT...NE wind 20 to 35 kt. Seas 9 to 14 ft.
.SAT NIGHT...NE wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...S wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...SW wind 10 to 20 kt. Seas 7 to 11 ft.

$$

636 
FZAK62 PAFC 291255
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
355 AM AKST Fri Dec 29 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-300145-
355 AM AKST Fri Dec 29 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 974 mb low at 49N 171W moves to 51N 174W at 970 mb tonight. The
low then moves to 52N 170W at 976 mb Sat night. A second 979 mb 
low develops at 54N 162W tonight and moves to 58N 168W at 977 mb 
Sat night.

$$

PKZ411-300145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
355 AM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 30 to 45 kt. Seas 18 to 27 ft. Snow and rain.
.TONIGHT...NE wind 35 kt. Seas 16 to 21 ft. Snow.
.SAT...NE wind 25 to 35 kt. Seas 15 to 21 ft.
.SAT NIGHT...NE wind 30 kt. Seas 15 to 19 ft.
.SUN THROUGH TUE...NE wind 15 to 30 kt. Seas 10 to 18 ft.

$$

PKZ412-300145-
Bering Sea Offshore 171W to 180 and North of 56N-
355 AM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 35 kt. Seas 9 to 16 ft. Snow.
.TONIGHT...NE wind 30 to 40 kt. Seas 12 to 19 ft. Freezing spray.
Snow.
.SAT...NE wind 35 kt. Seas 15 to 20 ft. Freezing spray. Snow.
.SAT NIGHT...NE wind 25 to 35 kt. Seas 16 ft.
.SUN THROUGH TUE...NW wind 15 to 30 kt. Seas 9 to 17 ft.

$$

PKZ413-300145-
Bering Sea Offshore 171W to 180 and South of 56N-
355 AM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE wind 40 kt. Seas 13 to 20 ft. Snow and rain.
.TONIGHT...NE wind 30 to 40 kt. Seas 17 to 22 ft. Snow and rain.
.SAT...NE wind 25 to 40 kt. Seas 15 to 22 ft. Snow and rain.
.SAT NIGHT...N wind 20 to 30 kt. Seas 13 to 19 ft.
.SUN...N wind 10 to 25 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...W wind 10 to 25 kt. Seas 8 to 13 ft.

$$

PKZ414-300145-
Bering Sea Offshore East of 171W-
355 AM AKST Fri Dec 29 2017

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...E wind 20 to 30 kt. Seas 6 to 11 ft. Freezing spray. Snow
and rain.
.TONIGHT...E wind 25 to 35 kt. Seas 9 to 15 ft. Freezing spray N of
56N. Snow and rain.
.SAT...NE wind 20 to 35 kt. Seas 10 to 15 ft. Rain and snow.
.SAT NIGHT...E wind 15 to 30 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...S wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...SW wind 10 to 20 kt. Seas 7 to 11 ft.

$$

085 
FZAK62 PAFC 300033
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
333 PM AKST Fri Dec 29 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-301445-
333 PM AKST Fri Dec 29 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 971 mb low at 48N 165E will move south of the Kamchatka
Peninsula Sat morning. A 970 mb low at 51N 173W will move to 52N 
166W at 975 mb Sun morning then it will move to 57N 174W at 974 mb
Sun afternoon. 

$$

PKZ411-301445-
Bering Sea Offshore West of 180 and East of the International
Dateline-
333 PM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...NE wind 35 kt. Seas 16 to 22 ft. Snow.
.SAT...NE wind 25 to 35 kt. Seas 15 to 22 ft.
.SAT NIGHT...NE wind 30 kt. Seas 14 to 19 ft. Freezing spray after
midnight north of 56N.
.SUN...N wind 20 to 30 kt. Seas 13 to 18 ft.
.SUN NIGHT...N wind 20 to 35 kt. Seas 14 to 19 ft.
.MON THROUGH TUE...NE wind 15 to 30 kt. Seas 9 to 16 ft.
.WED...E wind 15 to 30 kt. Seas 8 to 11 ft.

$$

PKZ412-301445-
Bering Sea Offshore 171W to 180 and North of 56N-
333 PM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 30 to 40 kt. Seas 12 to 19 ft. Snow.
.SAT...NE wind 30 to 40 kt. Seas 14 to 20 ft. Snow.
.SAT NIGHT...N wind 25 to 40 kt. Seas 16 to 20 ft. Freezing spray 
after midnight north of 56N. Snow showers.
.SUN...N wind 20 to 35 kt. Seas 10 to 18 ft.
.SUN NIGHT...NE wind 15 to 30 kt. Seas 9 to 14 ft.
.MON...NE wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE...NW wind 20 kt. Seas 9 to 12 ft.
.WED...SE wind 10 to 25 kt. Seas 9 ft.

$$

PKZ413-301445-
Bering Sea Offshore 171W to 180 and South of 56N-
333 PM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE wind 30 to 40 kt. Seas 17 to 23 ft. Rain with snow.
.SAT...NE wind 30 to 40 kt. Seas 19 to 23 ft. Rain and snow.
.SAT NIGHT...NE wind 35 kt becoming N 20 to 30 kt after midnight.
Seas 16 to 20 ft.
.SUN...N wind 10 to 25 kt. Seas 11 to 16 ft.
.SUN NIGHT...NW wind 10 to 25 kt. Seas 9 to 14 ft.
.MON...NW wind up to 20 kt. Seas 7 to 12 ft.
.TUE...W wind 20 kt. Seas 11 ft.
.WED...SE wind 15 to 30 kt. Seas 8 to 11 ft.

$$

PKZ414-301445-
Bering Sea Offshore East of 171W-
333 PM AKST Fri Dec 29 2017

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 to 35 kt. Seas 9 to 16 ft. Rain with snow.
.SAT...NE wind 25 to 40 kt. Seas 11 to 18 ft. Rain and snow.
.SAT NIGHT...NE wind 20 to 35 kt becoming E 10 to 25 kt after
midnight. Seas 8 to 16 ft. Snow.
.SUN...SE wind up to 20 kt. Seas 6 to 10 ft.
.SUN NIGHT...SE wind up to 20 kt. Seas 5 to 8 ft.
.MON...NE wind 15 to 30 kt. Seas 6 to 11 ft.
.TUE...SW wind 10 to 20 kt. Seas 7 to 11 ft.
.WED...S wind 10 to 20 kt. Seas 7 ft.

$$

666 
FZAK62 PAFC 301237
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
337 AM AKST Sat Dec 30 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-310200-
337 AM AKST Sat Dec 30 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

A 973 mb low at 51N 174W moves to 54N 169W tonight at 974 mb. The
low then moves to 56N 177W at 973 mb Sun night. A second 980 mb
low enters the eastern Bering near 57N 159W tonight and then
dissolves Sun afternoon in the central Bering. A North Pacific low
at 957 mb moves to 51N 160W Sun night.

$$

PKZ411-310200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
337 AM AKST Sat Dec 30 2017

...GALE WARNING TODAY AND SUNDAY...

.TODAY...NE wind 25 to 35 kt. Seas 14 to 21 ft.
.TONIGHT...NE wind 30 kt. Seas 14 to 18 ft. Freezing spray N of 56N.
.SUN...N wind 25 to 35 kt. Seas 13 to 20 ft. Freezing spray in the
morning N of 56N. Snow showers.
.SUN NIGHT...N wind 25 to 40 kt. Seas 16 to 23 ft.
.MON...N wind 20 to 35 kt. Seas 12 to 20 ft.
.TUE...NW wind up to 20 kt. Seas 8 to 13 ft.
.WED...E wind 15 to 30 kt. Seas 8 to 11 ft.

$$

PKZ412-310200-
Bering Sea Offshore 171W to 180 and North of 56N-
337 AM AKST Sat Dec 30 2017

...GALE WARNING THROUGH SUNDAY...

.TODAY...NE wind 30 to 40 kt. Seas 14 to 19 ft. Freezing spray N of
57N. Snow.
.TONIGHT...N wind 25 to 40 kt. Seas 16 to 19 ft. Freezing spray.
Snow.
.SUN...N wind 20 to 35 kt. Seas 11 to 19 ft. Freezing spray in the
morning. Snow.
.SUN NIGHT...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.MON THROUGH TUE...N wind up to 20 kt. Seas 8 to 13 ft.
.WED...SE wind 10 to 25 kt. Seas 9 ft.

$$

PKZ413-310200-
Bering Sea Offshore 171W to 180 and South of 56N-
337 AM AKST Sat Dec 30 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 30 to 40 kt. Seas 17 to 22 ft. Snow and rain.
.TONIGHT...N wind 35 kt. Seas 18 ft.
.SUN...N wind 15 to 30 kt. Seas 11 to 18 ft.
.SUN NIGHT...NW wind 10 to 25 kt. Seas 9 to 14 ft.
.MON THROUGH TUE...NW wind 10 to 25 kt. Seas 7 to 12 ft.
.WED...SE wind 15 to 30 kt. Seas 8 to 11 ft.

$$

PKZ414-310200-
Bering Sea Offshore East of 171W-
337 AM AKST Sat Dec 30 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE wind 25 to 40 kt. Seas 9 to 17 ft. Freezing spray N of
57N. Snow.
.TONIGHT...E wind 20 to 35 kt becoming SE up to 20 kt after
midnight. Seas 8 to 16 ft. Snow.
.SUN...SE wind 10 to 15 kt. Seas 5 to 10 ft.
.SUN NIGHT...SE wind up to 20 kt. Seas 4 to 7 ft.
.MON...N wind 10 to 25 kt. Seas 6 to 11 ft.
.TUE...W wind 10 to 20 kt. Seas 5 to 10 ft.
.WED...S wind 10 to 20 kt. Seas 7 ft.

$$

820 
FZAK62 PAFC 310018
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
318 PM AKST Sat Dec 30 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-311430-
318 PM AKST Sat Dec 30 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 980 mb low at 53N 170W will move to 56N 171W at 971 mb Sun 
morning, then it will weaken near 55N 176W Mon afternoon. A North 
Pacific low will move to 52N 162W at 955 mb Mon morning then it 
will move to 55N 158W at 959 mb Mon afternoon.

$$

PKZ411-311430-
Bering Sea Offshore West of 180 and East of the International
Dateline-
318 PM AKST Sat Dec 30 2017

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

.TONIGHT...NE wind 30 kt. Seas 14 to 18 ft. Freezing spray.
.SUN...N wind 25 to 35 kt. Seas 14 to 21 ft. Freezing spray. Snow
showers.
.SUN NIGHT...N wind 25 to 35 kt. Seas 16 to 24 ft. Freezing spray.
Snow showers.
.MON...N wind 20 to 35 kt. Seas 14 to 22 ft.
.MON NIGHT...N wind 15 to 25 kt. Seas 11 to 17 ft.
.TUE...NW wind up to 20 kt. Seas 7 to 12 ft.
.WED...E wind 15 to 30 kt. Seas 8 to 11 ft.
.THU...NE wind 10 to 25 kt. Seas 10 to 18 ft.

$$

PKZ412-311430-
Bering Sea Offshore 171W to 180 and North of 56N-
318 PM AKST Sat Dec 30 2017

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...N wind 25 to 40 kt. Seas 16 to 19 ft. Freezing spray.
Snow.
.SUN...N wind 20 to 35 kt. Seas 12 to 20 ft. Snow.
.SUN NIGHT...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.MON...NE wind up to 20 kt. Seas 9 to 14 ft.
.MON NIGHT...NE wind up to 20 kt. Seas 6 to 11 ft.
.TUE...N wind 10 to 20 kt. Seas 7 to 11 ft.
.WED...SE wind 10 to 25 kt. Seas 9 ft.
.THU...E wind 10 to 25 kt. Seas 8 to 13 ft.

$$

PKZ413-311430-
Bering Sea Offshore 171W to 180 and South of 56N-
318 PM AKST Sat Dec 30 2017

...GALE WARNING TONIGHT...

.TONIGHT...N wind 35 kt. Seas 15 to 18 ft.
.SUN...N wind 15 to 30 kt. Seas 12 to 17 ft.
.SUN NIGHT...W wind 10 to 25 kt. Seas 10 to 17 ft.
.MON...W wind 10 to 25 kt. Seas 9 to 17 ft.
.MON NIGHT...NW wind up to 15 kt. Seas 7 to 12 ft.
.TUE...NW wind up to 20 kt. Seas 6 to 11 ft.
.WED...SE wind 15 to 30 kt. Seas 8 to 11 ft.
.THU...NE wind 25 kt. Seas 9 to 14 ft.

$$

PKZ414-311430-
Bering Sea Offshore East of 171W-
318 PM AKST Sat Dec 30 2017

...GALE WARNING TONIGHT...

.TONIGHT...E wind 20 to 35 kt becoming SE 10 to 20 kt after
midnight. Seas 9 to 14 ft. Snow.
.SUN...SE wind 10 to 20 kt. Seas 5 to 10 ft.
.SUN NIGHT...SE wind 10 to 20 kt. Seas 7 ft.
.MON...NE wind 15 to 30 kt. Seas 6 to 11 ft.
.MON NIGHT...NW wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE...W wind up to 20 kt. Seas 6 to 11 ft.
.WED...S wind 10 to 20 kt. Seas 7 ft.
.THU...E wind 15 to 25 kt. Seas 7 to 12 ft.

$$

164 
FZAK62 PAFC 311248
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
348 AM AKST Sun Dec 31 2017

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-010145-
348 AM AKST Sun Dec 31 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

A 977 mb low over the Alaska Peninsula moves to 61N 166W and 
dissipates this afternoon. A 976 mb low at 56N 170W moves to 56N 177E
at 982 mb Mon night. A 956 mb low at 50N 161W tonight moves to 58N 
159W at 967 mb Mon night.

$$

PKZ411-010145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
348 AM AKST Sun Dec 31 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...N wind 25 to 35 kt. Seas 14 to 19 ft.
.TONIGHT...N wind 25 to 35 kt. Seas 15 to 22 ft. Freezing spray.
Snow showers.
.MON...N wind 15 to 30 kt. Seas 15 to 19 ft. Freezing spray. Snow
showers.
.MON NIGHT...N wind 15 to 25 kt. Seas 10 to 16 ft.
.TUE...NW wind up to 20 kt. Seas 6 to 11 ft.
.WED...E wind 15 to 30 kt. Seas 6 to 11 ft.
.THU...NE wind 10 to 25 kt. Seas 10 to 18 ft.

$$

PKZ412-010145-
Bering Sea Offshore 171W to 180 and North of 56N-
348 AM AKST Sun Dec 31 2017

...GALE WARNING TODAY...

.TODAY...N wind 20 to 35 kt. Seas 12 to 20 ft. Snow.
.TONIGHT...NE wind 15 to 30 kt. Seas 10 to 18 ft.
.MON...E wind 10 to 15 kt. Seas 9 to 14 ft.
.MON NIGHT...NE wind up to 20 kt. Seas 6 to 11 ft.
.TUE...N wind up to 20 kt. Seas 6 to 9 ft.
.WED...SE wind 10 to 25 kt. Seas 6 to 10 ft.
.THU...E wind 10 to 25 kt. Seas 8 to 13 ft.

$$

PKZ413-010145-
Bering Sea Offshore 171W to 180 and South of 56N-
348 AM AKST Sun Dec 31 2017

.TODAY...N wind 15 to 30 kt. Seas 12 to 17 ft.
.TONIGHT...NW wind 10 to 25 kt. Seas 10 to 16 ft.
.MON...W wind 10 to 25 kt. Seas 9 to 17 ft.
.MON NIGHT...W wind up to 20 kt. Seas 9 to 14 ft.
.TUE...W wind up to 20 kt. Seas 6 to 11 ft.
.WED...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.THU...NE wind 25 kt. Seas 9 to 14 ft.

$$

PKZ414-010145-
Bering Sea Offshore East of 171W-
348 AM AKST Sun Dec 31 2017

.TODAY...SE wind 10 to 20 kt. Seas 5 to 10 ft.
.TONIGHT...SE wind 10 to 25 kt. Seas 7 ft.
.MON...NE wind 15 to 30 kt. Seas 6 to 11 ft. Rain.
.MON NIGHT...N wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...W wind up to 20 kt. Seas 5 to 10 ft.
.WED...S wind 10 to 20 kt. Seas 6 to 9 ft.
.THU...E wind 15 to 25 kt. Seas 7 to 12 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion...CORRECTED
National Weather Service Anchorage AK
824 AM AKST Wed Dec 27 2017

.ANALYSIS AND UPPER LEVELS...
The upper levels over Alaska this morning are dominated by a weak
but meridional polar jet stream with areas of high pressure
building in across the Gulf of Alaska and the ALCAN as well as a
high amplitude ridge building in across the Central Bering/Aleutians.
A narrowing upper level trough over the western part of the state
is being squeezed between the two upper level ridges and
weakening. The major storm track associated with the sub-tropical
jet stream is located well to the south over the Central Pacific
Ocean, thus the state is currently seeing a period of rather
tranquil weather. High pressure is leading to areas of fog/low
stratus over the Copper River Basin and the Cook Inlet/Knik Arm
area, with dense fog currently observed over west Anchorage
including the airport.

&&

.MODEL DISCUSSION...
Models are in decent agreement for the short-term forecast,
though it was noted the cold temperatures seen across inland
regions were not being handled well, so temperatures were manually
decreased to be representative. Recent model runs have shown
better agreement regarding the large area of low pressure forming
across the Aleutians/Bering towards the end of the week.

&&

.AVIATION...
PANC...Dense fog will persist over the terminal this morning as a
strong subsidence inversion and light surface winds should keep
the surface from mixing out. Current webcam images across the
Anchorage area show fog continuing to spread throughout the bowl,
so it is expected that LIFR conditions will continue through at
least late morning then breaking up some in the afternoon before
possibly reforming tonight. Due to the stagnant conditions under
the upper level ridge and low sun angle this time of year, it is
possible fog will continue through the whole day with only
periodic breaks.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
(Today through Thursday evening)

A quiet weather pattern will persist into the weekend with no
significant systems expected to affect the region. An area of
high pressure has moved over Southcentral diverting the major
storm path away from the area. This in turn has lead to light
winds and steep inversions, helping promote fog development this
morning over the Cook Inlet and Copper River Basin.

Heading into tonight and your day on Thursday, the high
over Siberia will retrograde westward, allowing an upper-level
trough across the Bering Sea to move into west central portions of
the state, with a closed mid-level low forming. Southwesterly
flow developing in the mid and upper-levels south of this low
should allow for some increased cloud cover to develop. Should
this occur, fog potential would be mitigated in those locations.
Otherwise, look for the quiet weather conditions to continue.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
The mainland will be predominantly cold and dry for the next
couple days as a weak outflow pattern sets up over the area. Low-
level moisture trapped near the surface is keeping cloud cover
over a good portion of the area. The pressing question in the
short term is how long do these clouds stick around. Usually a
cold-advection outflow pattern will bring in clear conditions
pretty fast, but the lack of a subsident upper level high pressure
may give the low deck a little more staying power. Currently, the
forecast has the Delta clearing out by this evening. Otherwise,
expect some early fog and flurries while the low-stratus sticks
around then clearing conditions save for some high clouds
streaming in from the Bering Sea. Temperatures will be near normal
but much colder than what we've been seeing lately.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A frontal boundary approaches the western/central Aleutians today.
The front will bring gale-force, possible low-end storm-force
winds to the area along with a mix of snow and rain. The front
will stall over the area through the remainder of the week while
another low deepens near the Eastern Aleutians/Alaska Peninsula.

&&

.LONG TERM FORECAST (Days 3 through 7)...

We are still on tap for an upper trough to drop into northwest
Alaska resulting in an upper level low forming in the base of the
trough over the western interior Thursday. The upper low is still
expected to take up residence over the Seward Peninsula region
into the weekend before being pushed north as a trough to the
Arctic coast Saturday/Sunday time frame. Meanwhile, an upper high
over far eastern Asia drifts west and an upper low pushes to
south of the Aleutians Friday. This translates to the main
activity with respect to surface lows remaining along or just
south of the Aleutians through Sunday. The upper level low then
pushes to the eastern Bering Sea in the vicinity of the Pribilof
Islands Monday. This drags the surface low north to the Pribilofs
as well. However, overall model agreement with respect to the
surface lows in particular is poor heading into the weekend and
doesn't fair much better moving into Monday and Tuesday.
Considering potential solutions of a large low centered in the
eastern Bering to a strong large low south of Kodiak Island, and
the difference being a strong southerly push versus east to
northeast offshore flow off the southern mainland, we are taking
an approach of trending with the ensemble mean solutions and not
making any drastic changes beyond day 4 (Saturday).

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale warning 173 174 175 176 178 411 413. Storm warning
177. Heavy freezing spray warning 160 180.

&&

SYNOPSIS AND MODEL DISCUSSION...KVP
SOUTHCENTRAL ALASKA...PD/SB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...ML
LONG TERM...SA