Gale Warning 686, NWS Anchorage, AK

696 
FZAK62 PAFC 211249
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
349 AM AKST Thu Dec 21 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.

PKZ499-220200-
349 AM AKST Thu Dec 21 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 mb low will move to 50N 159W this afternoon, then it will 
move to 57N 168W at 976 mb Fri morning, then it will move into 
the northern Bering Fri afternoon. A second low will move to 52N 
157W at 977 mb Fri night then it will move near 54N 160W at 976 
mb Sat morning.

$$

PKZ411-220200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
349 AM AKST Thu Dec 21 2017

...GALE WARNING FRIDAY...

.TODAY...N wind 15 to 30 kt. Seas 9 to 14 ft.
.TONIGHT...NW wind 15 to 30 kt. Seas 9 to 16 ft. Freezing spray.
.FRI...W wind 20 to 35 kt. Seas 9 to 14 ft.
.FRI NIGHT...W wind 10 to 20 kt. Seas 6 to 11 ft.
.SAT THROUGH SUN...W wind 10 to 25 kt. Seas 6 to 11 ft.
.MON...NE wind up to 20 kt. Seas 4 to 8 ft.

$$

PKZ412-220200-
Bering Sea Offshore 171W to 180 and North of 56N-
349 AM AKST Thu Dec 21 2017

...STORM WARNING TONIGHT...

.TODAY...N wind 25 to 40 kt, except SE 25 to 35 kt E of 176W. Seas 
13 to 21 ft. Rain and snow.
.TONIGHT...NE wind 35 to 50 kt, except E 20 to 30 kt E of 176W. Seas
14 to 21 ft. Rain and snow.
.FRI...NW wind 30 to 45 kt. Seas 13 to 21 ft. Snow.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 12 to 20 ft.
.SAT THROUGH SUN...W wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...N wind up to 15 kt. Seas 5 to 8 ft.

$$

PKZ413-220200-
Bering Sea Offshore 171W to 180 and South of 56N-
349 AM AKST Thu Dec 21 2017

...STORM WARNING TONIGHT...

.TODAY...NW wind 30 to 45 kt, except SE 25 to 35 kt E of 176W. Seas 
11 to 19 ft. Rain.
.TONIGHT...NW wind 35 to 50 kt. Seas 15 to 23 ft.
.FRI...NW wind 30 to 45 kt. Seas 16 to 26 ft.
.FRI NIGHT...NW wind 20 to 35 kt. Seas 11 to 19 ft.
.SAT THROUGH SUN...W wind 10 to 25 kt. Seas 9 to 14 ft.
.MON...SW wind up to 15 kt. Seas 4 to 8 ft.

$$

PKZ414-220200-
Bering Sea Offshore East of 171W-
349 AM AKST Thu Dec 21 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...SE wind 30 to 40 kt. Seas 13 to 20 ft. Rain with snow.
.TONIGHT...E wind 25 to 40 kt. Seas 10 to 18 ft. Rain.
.FRI...SE wind 20 to 35 kt. Seas 10 to 17 ft. Rain and snow.
.FRI NIGHT...N wind 20 to 35 kt. Seas 12 to 20 ft.
.SAT...W wind 20 to 35 kt. Seas 11 to 19 ft.
.SUN...W wind 10 to 25 kt. Seas 7 to 12 ft.
.MON...SW wind up to 10 kt. Seas 4 to 9 ft.

$$

409 
FZAK62 PAFC 220027
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
327 PM AKST Thu Dec 21 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.

PKZ499-221415-
327 PM AKST Thu Dec 21 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 976 mb low crosses over the AKPEN and into the Bering this 
afternoon and moves to 60N 174W at 975 mb Fri morning. The low 
then moves north over Kamchatka. A front associated with a low in
the western Gulf extends across the eastern Bering Fri morning
through Sat afternoon.

$$

PKZ411-221415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
327 PM AKST Thu Dec 21 2017

...GALE WARNING FRIDAY...

.TONIGHT...NW wind 15 to 30 kt. Seas 8 to 16 ft. Freezing spray.
.FRI...W wind 20 to 35 kt. Seas 9 to 14 ft.
.FRI NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray.
.SAT...W wind 15 to 30 kt. Seas 7 to 12 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...NW wind 10 to 25 kt. Seas 6 to 11 ft.
.MON...NE wind up to 20 kt. Seas 4 to 8 ft.
.TUE...SE wind 20 to 35 kt. Seas 12 to 20 ft.

$$

PKZ412-221415-
Bering Sea Offshore 171W to 180 and North of 56N-
327 PM AKST Thu Dec 21 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NE wind 30 to 45 kt. Seas 14 to 22 ft. Rain and snow.
.FRI...NW wind 30 to 45 kt. Seas 12 to 20 ft. Snow showers.
.FRI NIGHT...W wind 20 to 35 kt. Seas 12 to 19 ft. Freezing spray.
Snow showers.
.SAT...W wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT NIGHT...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN THROUGH MON...N wind 10 to 25 kt. Seas 6 to 11 ft.
.TUE...E wind up to 20 kt. Seas 5 to 8 ft.

$$

PKZ413-221415-
Bering Sea Offshore 171W to 180 and South of 56N-
327 PM AKST Thu Dec 21 2017

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 35 to 50 kt. Seas 13 to 21 ft.
.FRI...NW wind 30 to 45 kt. Seas 16 to 23 ft.
.FRI NIGHT...W wind 20 to 35 kt. Seas 10 to 18 ft. Freezing spray.
.SAT...W wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 7 to 12 ft.
.SUN...W wind 10 to 25 kt. Seas 8 to 13 ft.
.MON...SW wind up to 15 kt. Seas 4 to 8 ft.
.TUE...E wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ414-221415-
Bering Sea Offshore East of 171W-
327 PM AKST Thu Dec 21 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt. Seas 10 to 18 ft. Rain.
.FRI...SE wind 20 to 35 kt. Seas 9 to 17 ft. Rain and snow showers.
.FRI NIGHT...W wind 20 to 35 kt. Seas 9 to 17 ft. Snow and rain
showers.
.SAT...NW wind 20 to 35 kt. Seas 10 to 18 ft.
.SAT NIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft.
.SUN...NW wind 15 to 30 kt. Seas 9 to 17 ft.
.MON...SW wind up to 10 kt. Seas 4 to 9 ft.
.TUE...NE wind up to 15 kt. Seas 5 ft.

$$

817 
FZAK62 PAFC 221250
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 AM AKST Fri Dec 22 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.

PKZ499-230145-
350 AM AKST Fri Dec 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 mb low at 56N 167W moves into the Gulf of Anadyr at 985 mb
Sat morning. The associated front wraps over the Eastern Bering
through Sat morning. A 975 mb low at 48N 155W Fri afternoon moves
along the front to 55N 154W at 990 mb for Sun morning. Three 995 
mb lows slip across the Western Bering by Sun morning.

$$

PKZ411-230145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 AM AKST Fri Dec 22 2017

...GALE WARNING TODAY...

.TODAY...NW wind 20 to 35 kt. Seas 8 to 16 ft. Freezing spray.
.TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray.
.SAT...SW wind 10 to 25 kt. Seas 7 to 11 ft. Freezing spray.
.SAT NIGHT...SW wind 20 to 35 kt. Seas 7 to 12 ft.
.SUN THROUGH MON...N wind 10 to 25 kt. Seas 6 to 11 ft.
.TUE...SE wind 20 to 35 kt. Seas 8 to 13 ft.

$$

PKZ412-230145-
Bering Sea Offshore 171W to 180 and North of 56N-
350 AM AKST Fri Dec 22 2017

...STORM WARNING THROUGH TONIGHT...

.TODAY...NW wind 35 to 50 kt. Seas 18 to 26 ft. Snow.
.TONIGHT...W wind 20 to 35 kt. Seas 12 to 20 ft. Freezing spray.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...W wind 10 to 25 kt. Seas 7 to 12 ft.
.MON...NW wind up to 15 kt. Seas 6 to 9 ft.
.TUE...E wind up to 20 kt. Seas 6 ft.

$$

PKZ413-230145-
Bering Sea Offshore 171W to 180 and South of 56N-
350 AM AKST Fri Dec 22 2017

...GALE WARNING TODAY...

.TODAY...NW wind 30 to 45 kt. Seas 16 to 24 ft.
.TONIGHT...W wind 15 to 30 kt. Seas 11 to 19 ft.
.SAT...W wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 7 to 12 ft.
.SUN...W wind 10 to 25 kt. Seas 8 to 13 ft.
.MON...NW wind up to 15 kt. Seas 6 to 9 ft.
.TUE...E wind 10 to 25 kt. Seas 5 to 8 ft.

$$

PKZ414-230145-
Bering Sea Offshore East of 171W-
350 AM AKST Fri Dec 22 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 20 to 35 kt. Seas 10 to 17 ft. Rain and snow.
.TONIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft. Rain and snow.
.SAT...NW wind 25 to 40 kt. Seas 12 to 19 ft. Snow with rain.
.SAT NIGHT...NW wind 25 to 40 kt. Seas 10 to 18 ft.
.SUN...W wind 20 to 35 kt. Seas 9 to 16 ft.
.MON...SW wind up to 20 kt. Seas 6 to 10 ft.
.TUE...NE wind up to 15 kt. Seas 3 to 7 ft.

$$

014 
FZAK62 PAFC 230029
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
329 PM AKST Fri Dec 22 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.

PKZ499-231330-
329 PM AKST Fri Dec 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 mb low at 61N 178W moves to the Gulf of Anadyr tonight. A 
second low enters the southeastern Bering tonight at 988 mb near 
57N 165W and moves to 63N 169W Sun afternoon at 1001 mb. A front 
remains nearly stationary along the eastern Bering through the 
forecast period. Another low approaches the western Aleutians Sun 
afternoon at 1007 mb. 

$$

PKZ411-231330-
Bering Sea Offshore West of 180 and East of the International
Dateline-
329 PM AKST Fri Dec 22 2017

.TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray.
.SAT...SW wind 10 to 25 kt. Seas 7 to 12 ft. Freezing spray.
.SAT NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft. Freezing spray.
.SUN...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN NIGHT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...N wind 15 to 30 kt. Seas 7 to 12 ft.
.TUE...SE wind 20 to 35 kt. Seas 8 to 13 ft.
.WED...SE wind 25 to 35 kt. Seas 12 to 20 ft.

$$

PKZ412-231330-
Bering Sea Offshore 171W to 180 and North of 56N-
329 PM AKST Fri Dec 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...W wind 20 to 35 kt. Seas 12 to 19 ft. Freezing spray.
.SAT...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT NIGHT...NE wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...SW wind 10 to 25 kt. Seas 7 to 12 ft.
.SUN NIGHT...SW wind 10 to 25 kt. Seas 8 to 12 ft.
.MON...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.TUE THROUGH WED...E wind 10 to 25 kt. Seas 4 to 8 ft.

$$

PKZ413-231330-
Bering Sea Offshore 171W to 180 and South of 56N-
329 PM AKST Fri Dec 22 2017

.TONIGHT...W wind 15 to 30 kt. Seas 10 to 18 ft.
.SAT...W wind 10 to 25 kt. Seas 7 to 12 ft.
.SAT NIGHT...W wind 10 to 25 kt. Seas 6 to 11 ft.
.SUN...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN NIGHT...NW wind 15 to 30 kt. Seas 10 ft.
.MON...N wind 15 to 30 kt. Seas 8 to 11 ft.
.TUE THROUGH WED...E wind 10 to 25 kt. Seas 6 to 11 ft.

$$

PKZ414-231330-
Bering Sea Offshore East of 171W-
329 PM AKST Fri Dec 22 2017

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 20 to 35 kt. Seas 9 to 17 ft. Rain and snow.
.SAT...NW wind 25 to 40 kt. Seas 11 to 17 ft. Snow with rain.
.SAT NIGHT...NW wind 25 to 40 kt. Seas 9 to 17 ft.
.SUN...NW wind 15 to 30 kt. Seas 6 to 11 ft.
.SUN NIGHT...NW wind up to 15 kt. Seas 7 ft.
.MON...S wind 10 to 25 kt. Seas 5 to 9 ft.
.TUE THROUGH WED...NE wind up to 20 kt. Seas 3 to 8 ft.

$$

270 
FZAK62 PAFC 231246
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
346 AM AKST Sat Dec 23 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.

PKZ499-240200-
346 AM AKST Sat Dec 23 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 981 mb low at 51N 156W loops a front into Southwest Alaska and 
moves across the Gulf of Alaska by Mon morning. A 989 mb low near 
57N 163W moves to the Chukchi Sea at 1007 mb Mon morning. Two 
Western Bering 995 mb lows merge near 61N 176W at 1014 mb Mon 
morning. A 1003 mb low moves to 57N 175W at 1011 mb Mon morning.

$$

PKZ411-240200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
346 AM AKST Sat Dec 23 2017

.TODAY...SW wind 15 to 30 kt. Seas 8 to 13 ft.
.TONIGHT...W wind 15 to 30 kt. Seas 7 to 12 ft. Freezing spray.
.SUN...NW wind 10 to 20 kt. Seas 6 to 11 ft.
.SUN NIGHT...NW wind 10 to 20 kt. Seas 5 to 10 ft.
.MON...N wind up to 20 kt. Seas 3 to 8 ft.
.TUE...E wind 15 to 30 kt. Seas 3 to 8 ft.
.WED...E wind 20 to 35 kt. Seas 9 to 17 ft.

$$

PKZ412-240200-
Bering Sea Offshore 171W to 180 and North of 56N-
346 AM AKST Sat Dec 23 2017

.TODAY...NW wind 10 to 25 kt. Seas 9 to 14 ft.
.TONIGHT...E wind 10 to 25 kt. Seas 5 to 10 ft.
.SUN...S wind 10 to 20 kt. Seas 5 to 10 ft.
.SUN NIGHT...W wind 10 to 20 kt. Seas 7 to 10 ft.
.MON...NW wind up to 20 kt. Seas 4 to 9 ft.
.TUE THROUGH WED...NE wind up to 20 kt. Seas 4 to 9 ft.

$$

PKZ413-240200-
Bering Sea Offshore 171W to 180 and South of 56N-
346 AM AKST Sat Dec 23 2017

...GALE WARNING TONIGHT...

.TODAY...SW wind 10 to 25 kt. Seas 8 to 13 ft.
.TONIGHT...W wind 10 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 8 to 13 ft.
.SUN...W wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN NIGHT...NW wind 10 to 25 kt. Seas 7 to 11 ft.
.MON THROUGH WED...E wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ414-240200-
Bering Sea Offshore East of 171W-
346 AM AKST Sat Dec 23 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 20 to 35 kt. Seas 11 to 17 ft. Snow.
.TONIGHT...NW wind 20 to 35 kt. Seas 8 to 16 ft.
.SUN...W wind 15 to 30 kt. Seas 6 to 11 ft.
.SUN NIGHT...W wind up to 20 kt. Seas 6 to 10 ft.
.MON...S wind up to 15 kt. Seas 4 to 7 ft.
.TUE...E wind up to 15 kt. Seas 5 ft.
.WED...NE wind 20 kt. Seas 5 ft.

$$

933 
FZAK62 PAFC 240009
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
309 PM AKST Sat Dec 23 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.

PKZ499-241400-
309 PM AKST Sat Dec 23 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 987 mb low at 55N 158W weakens and moves inland by Sun
afternoon. A 1010 mb low at 51N 173E moves to 52N 178E at 1008 mb
by Sun afternoon and then to 51N 175W at 1014 mb by Mon afternoon.

$$

PKZ411-241400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
309 PM AKST Sat Dec 23 2017

.TONIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN...NW wind 10 to 20 kt. Seas 8 to 13 ft.
.SUN NIGHT...NW wind 10 to 20 kt. Seas 6 to 10 ft.
.MON...NW wind 10 to 20 kt. Seas 6 to 9 ft.
.MON NIGHT...N wind up to 20 kt. Seas 5 to 8 ft.
.TUE...E wind 15 to 30 kt. Seas 5 to 8 ft.
.WED THROUGH THU...E wind 20 to 35 kt. Seas 11 to 19 ft.

$$

PKZ412-241400-
Bering Sea Offshore 171W to 180 and North of 56N-
309 PM AKST Sat Dec 23 2017

.TONIGHT...E wind 10 to 25 kt. Seas 5 to 10 ft.
.SUN...S wind 10 to 20 kt. Seas 7 to 12 ft.
.SUN NIGHT...W wind 10 to 20 kt. Seas 7 to 12 ft.
.MON...NW wind up to 20 kt. Seas 5 to 9 ft.
.MON NIGHT...NE wind up to 15 kt. Seas 6 ft.
.TUE THROUGH THU...NE wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-241400-
Bering Sea Offshore 171W to 180 and South of 56N-
309 PM AKST Sat Dec 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...W wind 10 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 8 to 13 ft.
.SUN...W wind 15 to 30 kt. Seas 8 to 13 ft.
.SUN NIGHT...NW wind up to 15 kt becoming N 10 to 25 kt after
midnight. Seas 5 to 10 ft.
.MON...NE wind 15 to 30 kt. Seas 7 to 12 ft.
.MON NIGHT...NE wind 10 to 25 kt. Seas 7 to 11 ft.
.TUE THROUGH THU...E wind 15 to 30 kt. Seas 7 to 12 ft.

$$

PKZ414-241400-
Bering Sea Offshore East of 171W-
309 PM AKST Sat Dec 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 20 to 35 kt. Seas 8 to 16 ft.
.SUN...W wind 15 to 30 kt. Seas 6 to 11 ft.
.SUN NIGHT...W wind 10 to 20 kt. Seas 5 to 9 ft.
.MON...SW wind up to 20 kt. Seas 5 to 8 ft.
.MON NIGHT...E wind up to 20 kt. Seas 5 ft.
.TUE...E wind up to 15 kt. Seas 5 ft.
.WED THROUGH THU...NE wind 20 kt. Seas 6 ft.

$$

232 
FZAK62 PAFC 241301
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
401 AM AKST Sun Dec 24 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.

PKZ499-250215-
401 AM AKST Sun Dec 24 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 994 mb low at 56N 158W trails a front across the Gulf of Alaska
through Tue morning. A 994 mb low near 58N 175E moves into the 
Gulf of Anadyr at 1028 mb by Tue morning. A 1007 mb low at 51N 
174E swings to 57N 176W at 1019 mb for Tue morning. The associated
front slides into the Western Bering through Tue morning.

$$

PKZ411-250215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
401 AM AKST Sun Dec 24 2017

.TODAY...W wind 15 to 30 kt. Seas 8 to 13 ft.
.TONIGHT...NW wind 10 to 25 kt. Seas 6 to 11 ft. Freezing spray.
.MON...NW wind 10 to 25 kt. Seas 6 to 10 ft. Freezing spray.
.MON NIGHT...N wind up to 20 kt. Seas 4 to 8 ft.
.TUE THROUGH WED...E wind 25 to 40 kt. Seas 9 to 14 ft.
.THU...E wind 30 to 40 kt. Seas 16 to 24 ft.

$$

PKZ412-250215-
Bering Sea Offshore 171W to 180 and North of 56N-
401 AM AKST Sun Dec 24 2017

.TODAY...SW wind 10 to 20 kt. Seas 7 to 12 ft.
.TONIGHT...SW wind 10 to 20 kt. Seas 6 to 11 ft.
.MON...S wind up to 20 kt becoming W in the afternoon. Seas 5 to
10 ft. Snow.
.MON NIGHT...NW wind up to 20 kt. Seas 4 to 9 ft.
.TUE THROUGH THU...NE wind 15 to 30 kt. Seas 5 to 10 ft.

$$

PKZ413-250215-
Bering Sea Offshore 171W to 180 and South of 56N-
401 AM AKST Sun Dec 24 2017

...GALE WARNING MONDAY...

.TODAY...W wind 15 to 30 kt. Seas 7 to 12 ft. Snow.
.TONIGHT...SW wind up to 15 kt becoming SE 10 to 25 kt after
midnight. Seas 5 to 10 ft. Snow.
.MON...NW wind 20 to 35 kt except SE 20 kt E of 175W. Seas 8 to 13 
ft. Snow and rain.
.MON NIGHT...NE wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE THROUGH WED...E wind 15 to 30 kt. Seas 6 to 11 ft.
.THU...E wind 25 to 40 kt. Seas 11 to 19 ft.

$$

PKZ414-250215-
Bering Sea Offshore East of 171W-
401 AM AKST Sun Dec 24 2017

.TODAY...W wind 15 to 30 kt. Seas 6 to 11 ft.
.TONIGHT...W wind up to 20 kt diminishing to up to 10 kt after
midnight. Seas 5 to 9 ft.
.MON...W wind up to 10 kt becoming SE in the afternoon. Seas 4 to
8 ft.
.MON NIGHT...E wind up to 20 kt. Seas 4 to 9 ft.
.TUE THROUGH THU...NE wind 10 to 25 kt. Seas 4 to 9 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
520 AM AKST Wed Dec 20 2017

.ANALYSIS AND UPPER LEVELS...
Now that the front has passed Southcentral Alaska, the flow
pattern aloft looks less defined as far as specific features to
key on. Generally, a broad trough exists from eastern Russia
eastward through Alaska. The most active part of the jet is well
south of the Western Aleutians with an embedded disturbance
showing some development in the form of a baroclinic leaf over the
area. Otherwise, scattered weak disturbances within the trough
are the only game in town as far as active weather is concerned.
The final push of cold advection is pushing onto the mainland,
evidenced by open cell cumulus and visible on water vapor, telling
of deep cold air and instability. From a sensible weather
perspective, generally broad southwesterly flow at the surface
with embedded showers.

&&

.MODEL DISCUSSION...
Synoptically, models have a great handle on the evolution of the
upcoming pattern. The disturbance emanating from the east Asian
jet will act to tilt the upper trough negatively, allowing the jet
to buckle and pick up several disturbances currently in the mid-
latitudes. The main threat for this flow pattern will be high
winds across the southwest mainland, and models have some
discrepancy on what the top-end will be for the event.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist.

&&

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

The front that brought the snow and rain to the Cook Inlet and
Susitna Valley regions Tuesday has moved eastward and is nearing
the Alcan border this morning. A short wave will move over
Southcentral this morning and into the Copper River Basin by this
evening. This will bring some isolated-to-scattered snow showers
to the region but not much in any additional snow accumulations.
As skies clear from west to east this afternoon through overnight
it will allow some fog to develop in the northern Cook Inlet area
as well as the Copper River Basin. There is a chance the fog will
persist well into the day tomorrow under a ridge aloft that will
build over the Copper River Basin.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...
Snow showers will continue passing over the area today for most
of the Southwest as a weak shortwave trough passes overhead. These
showers have been somewhat intense at times overnight,
temporarily reducing visibility's to one mile or so with light
accumulations. This is expected to continue for most of the
morning before ending by this afternoon. Also beginning this
afternoon, strong southwesterly winds will develop especially
along the Kuskokwim Delta coast as a storm force front moves
through the Central-Eastern Bering. The biggest concern from this
will not come from the strong winds, but with the potential for
high surf along Kuskokwim Bay as a long fetch of gale-storm force
winds will be pointed directly into the south-southwest exposed
areas of the Bay. Fortunately, the tides today are not expected to
be very high, but the storm surge still has the potential to
bring water levels as high as 3 ft above the highest tide,
especially during the afternoon-evening hours.

The active weather pattern will then continue into Thursday as a
strong North Pacific low will move into the area Thursday
afternoon into Friday. The models are in very good agreement that
this low will bring at least strong, to potentially high winds,
to much of Bristol Bay. Of particular concern will be with winds to
the gap and downslope wind prone areas in Eastern Bristol Bay and
along the AK pen, however there is good confidence that this low
will bring at least strong winds into interior and Western
Bristol Bay as well through Friday. Confidence then begins to
break down a bit towards the weekend with the placement of a
secondary low that could develop just south of the AK pen, but
there is the potential that this low could bring a prolonged
period of strong/gusty winds to Bristol Bay and the Kuskokwim
Delta into Saturday with temperatures rising well above freezing.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...
Gale-storm force winds with widespread rains will continue to
impact the region for the next few days. This will be the result
of a continued very active weather pattern over the Bering as the
storm force low currently moving into the Central Bering today
will begin to slowly weaken on Thursday, then be re-invigorated by
an approaching storm force North Pacific low late Thursday. This
will shift the most active weather further east into the Bering
for late in the work week.

&&

.LONG TERM FORECAST (Thursday through Tuesday)...
Starting Thursday, a ridge of high pressure will be firmly in
place over the mainland, which will change the track of the low
pressure systems traversing the forecast area. Instead of moving
in from the west, the next two low pressure systems will approach
from the south and bring a lot more moisture, which will cause
heavy precipitation along the North Pacific coast, including the
oceanward side of the Kenai Peninsula. The first weather concern
is for southwest Alaska on Thursday and Friday, as the approaching
low will bring a strong low level jet and very tight gradient
over the Alaska Peninsula and Bristol Bay area. This has the
potential for warning level winds over the northern AK Pen and
inland Bristol Bay, so we have issued a high wind watch for those
areas. Temperatures all along the west coast will be very warm, so
snow will eventually turn over to rain as far north as the
Kuskokwim Delta.

The precipitation pushing onshore will be mostly rain for the
Kodiak area and the southern portion of the Kenai Peninsula, but
there are some interesting developments further northward. Models
have been hanging on to a pocket of cold air over Southcentral for
several days now, making precip type particularly challenging in
this area. Behind this low is some significant cold air, which
brings a chance for snow for all portions of the forecast area
before Christmas Day. Either way, the forecast looks to be messy
for the weekend before a return to more seasonable weather early
next week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...High Wind Watch 161.
MARINE...Gale 130 131 136-138 160-172 174 178 180.
Storm 132 150 155 173 175-177 179 181 185.

&&

SYNOPSIS AND MODEL DISCUSSION...MTL
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...DEK