Gale Warning 120, NWS Anchorage, AK

305 
FZAK62 PAFC 200008
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
308 PM AKST Mon Feb 19 2018

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.

PKZ499-201530-
308 PM AKST Mon Feb 19 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 965 mb Southern Chukotsk low moves to the Chukchi Sea at 981 mb 
with its front pushing into Western Alaska for Tue morning. A 1003
mb North Pacific low drives to 52N 176E at 992 mb Tue morning then
shifts to 64N 172W at 1004 mb Wed afternoon. The associated front
splits the Bering by Wed afternoon.

$$

PKZ411-201530-
Bering Sea Offshore West of 180 and East of the International
Dateline-
308 PM AKST Mon Feb 19 2018

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 35 to 50 kt diminishing to 25 to 40 kt after
midnight. Seas 16 to 31 ft.
.TUE...S wind 15 to 30 kt becoming NE in the afternoon. Seas 11 to
19 ft. Snow.
.TUE NIGHT...N wind 10 to 25 kt. Seas 8 to 12 ft. Snow showers and
rain showers.
.WED...NW wind 10 to 25 kt. Seas 7 to 11 ft.
.WED NIGHT...SW wind 10 to 25 kt. Seas 5 to 9 ft.
.THU...S wind 15 to 30 kt. Seas 9 to 14 ft.
.FRI...W wind 10 to 25 kt. Seas 8 to 12 ft.
.SAT...SE wind 10 to 25 kt. Seas 8 to 11 ft.

$$

PKZ412-201530-
Bering Sea Offshore 171W to 180 and North of 56N-
308 PM AKST Mon Feb 19 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 30 to 45 kt. Seas 20 to 34 ft.
.TUE...SE wind 15 to 30 kt. Seas 13 to 21 ft. Rain.
.TUE NIGHT...S wind 10 to 25 kt. Seas 9 to 13 ft. Snow.
.WED...SW wind 10 to 25 kt. Seas 9 to 13 ft.
.WED NIGHT...W wind 10 to 25 kt. Seas 8 to 13 ft.
.THU...S wind 10 to 25 kt. Seas 7 to 12 ft.
.FRI THROUGH SAT...SW wind 15 to 30 kt. Seas 9 to 17 ft.

$$

PKZ413-201530-
Bering Sea Offshore 171W to 180 and South of 56N-
308 PM AKST Mon Feb 19 2018

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 20 to 35 kt becoming S 15 to 25 kt after
midnight. Seas 16 to 24 ft.
.TUE...SE wind 15 to 30 kt. Seas 11 to 15 ft. Rain.
.TUE NIGHT...S wind 15 to 30 kt. Seas 10 to 13 ft.
.WED...SW wind 15 to 30 kt. Seas 11 to 16 ft.
.WED NIGHT...W wind 15 to 30 kt. Seas 8 to 16 ft.
.THU...S wind 10 to 25 kt. Seas 6 to 10 ft.
.FRI...W wind 15 to 30 kt. Seas 8 to 13 ft.
.SAT...S wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ414-201530-
Bering Sea Offshore East of 171W-
308 PM AKST Mon Feb 19 2018

.TONIGHT...SW wind 15 to 30 kt. Seas 10 to 16 ft.
.TUE...SE wind up to 20 kt increasing to 15 to 30 kt in the
afternoon. Seas 9 to 16 ft.
.TUE NIGHT...S wind 30 kt. Seas 9 to 13 ft.
.WED...S wind 20 to 30 kt. Seas 10 to 14 ft.
.WED NIGHT...SW wind 20 to 30 kt. Seas 10 to 17 ft.
.THU...SW wind 15 to 30 kt. Seas 7 to 12 ft.
.FRI...S wind 15 to 25 kt. Seas 7 to 12 ft.
.SAT...W wind 15 to 30 kt. Seas 11 to 16 ft.

$$

107 
FZAK62 PAFC 201253
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
353 AM AKST Tue Feb 20 2018

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.

PKZ499-210230-
353 AM AKST Tue Feb 20 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front in the central Bering moves inland tonight. A 995 mb low
at 45N 171E moves to 55N 178E at 998 mb tonight. The low then exits
to the north at 999 mb Wed night while the associated front 
remains in the central Bering. Another front approaches the
western Aleutians Wed night.

$$

PKZ411-210230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
353 AM AKST Tue Feb 20 2018

.TODAY...Variable wind 20 kt early becoming E wind 15 to 30 kt. Seas
11 to 19 ft. Rain and snow.
.TONIGHT...NE wind 15 to 30 kt. Seas 8 to 12 ft. Rain showers and
snow showers.
.WED...NW wind 15 to 30 kt. Seas 7 to 11 ft.
.WED NIGHT...SW wind 15 to 30 kt. Seas 5 to 9 ft.
.THU THROUGH FRI...S wind 10 to 25 kt. Seas 9 to 17 ft.
.SAT...SW wind 15 to 30 kt. Seas 14 to 22 ft.

$$

PKZ412-210230-
Bering Sea Offshore 171W to 180 and North of 56N-
353 AM AKST Tue Feb 20 2018

...GALE WARNING WEDNESDAY...

.TODAY...S to E wind 15 to 30 kt. Seas 13 to 21 ft. Rain and snow.
.TONIGHT...S wind 20 to 30 kt. Seas 9 to 13 ft. Rain and snow.
.WED...SW wind 20 to 35 kt. Seas 9 to 13 ft.
.WED NIGHT...W wind 15 to 30 kt. Seas 9 to 13 ft.
.THU THROUGH FRI...SE wind 15 to 30 kt. Seas 9 to 14 ft.
.SAT...SW wind 15 to 25 kt. Seas 13 to 20 ft.

$$

PKZ413-210230-
Bering Sea Offshore 171W to 180 and South of 56N-
353 AM AKST Tue Feb 20 2018

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...S to E wind 15 to 30 kt. Seas 11 to 15 ft. Rain and snow.
.TONIGHT...S wind 20 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 10 to 13 ft. Rain showers.
.WED...SW wind 25 to 40 kt. Seas 11 to 16 ft.
.WED NIGHT...W wind 15 to 30 kt. Seas 8 to 16 ft.
.THU THROUGH FRI...S wind 15 to 30 kt. Seas 9 to 17 ft.
.SAT...SW wind 15 to 30 kt. Seas 13 to 19 ft.

$$

PKZ414-210230-
Bering Sea Offshore East of 171W-
353 AM AKST Tue Feb 20 2018

...GALE WARNING WEDNESDAY...

.TODAY...S to E wind 15 to 30 kt. Seas 9 to 16 ft. Rain and snow.
.TONIGHT...S wind 30 kt. Seas 9 to 13 ft.
.WED...S wind 25 to 35 kt. Seas 10 to 14 ft.
.WED NIGHT...SW wind 20 to 35 kt. Seas 10 to 17 ft.
.THU...SW wind 10 to 25 kt. Seas 7 to 12 ft.
.FRI...SE wind 10 to 25 kt. Seas 7 to 12 ft.
.SAT...W wind 10 to 25 kt. Seas 9 to 14 ft.

$$

608 
FZAK62 PAFC 210028
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
328 PM AKST Tue Feb 20 2018

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.

PKZ499-211415-
328 PM AKST Tue Feb 20 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 990 mb low at 51N 175E moves to 69N 166W at 1003 mb by Thu 
morning. A 1008 mb low near 46N 168E Wed afternoon moves to Central 
Kamchatka at 989 mb and pushes a front over the Western Aleutians Thu
afternoon.

$$

PKZ411-211415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
328 PM AKST Tue Feb 20 2018

.TONIGHT...NE wind 15 to 30 kt. Seas 10 to 13 ft. Rain and snow 
showers.
.WED...NW wind 15 to 30 kt. Seas 9 to 12 ft.
.WED NIGHT...SW wind 10 to 25 kt. Seas 7 to 11 ft.
.THU...SE wind 15 to 30 kt. Seas 7 to 12 ft.
.THU NIGHT...S wind 10 to 25 kt. Seas 7 to 12 ft.
.FRI THROUGH SUN...S wind 15 to 30 kt. Seas 13 to 21 ft.

$$

PKZ412-211415-
Bering Sea Offshore 171W to 180 and North of 56N-
328 PM AKST Tue Feb 20 2018

...GALE WARNING WEDNESDAY...

.TONIGHT...S wind 20 to 30 kt. Seas 13 ft. Rain and snow.
.WED...SW wind 20 to 35 kt. Seas 11 to 16 ft.
.WED NIGHT...W wind 15 to 30 kt. Seas 10 to 16 ft.
.THU...SW wind 10 to 20 kt. Seas 7 to 12 ft.
.THU NIGHT...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.FRI...S wind 15 to 30 kt. Seas 9 to 17 ft.
.SAT...SW wind 15 to 25 kt. Seas 13 to 20 ft.
.SUN...S wind 15 to 25 kt. Seas 14 to 22 ft.

$$

PKZ413-211415-
Bering Sea Offshore 171W to 180 and South of 56N-
328 PM AKST Tue Feb 20 2018

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...S wind 20 to 30 kt increasing to 25 to 40 kt after
midnight. Seas 12 to 15 ft. Rain showers.
.WED...SW wind 25 to 40 kt. Seas 12 to 19 ft.
.WED NIGHT...W wind 15 to 30 kt. Seas 10 to 18 ft.
.THU...S wind 15 to 30 kt. Seas 7 to 11 ft.
.THU NIGHT...SE wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI THROUGH SUN...S wind 15 to 30 kt. Seas 11 to 19 ft.

$$

PKZ414-211415-
Bering Sea Offshore East of 171W-
328 PM AKST Tue Feb 20 2018

...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 9 to 14 ft.
.WED...S wind 25 to 35 kt. Seas 10 to 16 ft.
.WED NIGHT...SW wind 20 to 35 kt. Seas 11 to 17 ft.
.THU...W wind 10 to 25 kt. Seas 9 to 14 ft.
.THU NIGHT...SE wind 15 to 30 kt. Seas 6 to 9 ft.
.FRI...SE wind 15 to 30 kt. Seas 7 to 12 ft.
.SAT...W wind 10 to 25 kt. Seas 9 to 14 ft.
.SUN...SW wind 15 to 30 kt. Seas 10 to 16 ft.

$$

512 
FZAK62 PAFC 211254
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
354 AM AKST Wed Feb 21 2018

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.

PKZ499-220230-
354 AM AKST Wed Feb 21 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 995 mb low at 53N 179E moves across the Bering weakening to 1001 
mb at 65N 174W by Thu morning. A front moves across the Western 
Aleutians Thu afternoon.

$$

PKZ411-220230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
354 AM AKST Wed Feb 21 2018

...GALE WARNING THURSDAY...

.TODAY...NW to SW wind 15 to 30 kt. Seas 9 to 14 ft.
.TONIGHT...W wind 10 to 20 kt becoming SE 10 to 25 kt after
midnight. Seas 6 to 11 ft.
.THU...SE wind 20 to 35 kt. Seas 8 to 13 ft. Snow and rain.
.THU NIGHT...S wind 15 to 30 kt. Seas 10 to 15 ft.
.FRI THROUGH SAT...W wind 20 to 35 kt. Seas 11 to 19 ft.
.SUN...S wind up to 15 kt. Seas 15 to 23 ft.

$$

PKZ412-220230-
Bering Sea Offshore 171W to 180 and North of 56N-
354 AM AKST Wed Feb 21 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 20 to 35 kt. Seas 13 to 16 ft. Snow showers.
.TONIGHT...W wind 20 to 35 kt. Seas 9 to 16 ft.
.THU...W wind up to 20 kt becoming SE 10 to 25 kt in the afternoon. 
Seas 7 to 12 ft.
.THU NIGHT...E wind 20 to 35 kt. Seas 8 to 13 ft.
.FRI THROUGH SAT...W wind 20 to 35 kt. Seas 12 to 20 ft.
.SUN...S wind 15 to 25 kt. Seas 14 to 22 ft.

$$

PKZ413-220230-
Bering Sea Offshore 171W to 180 and South of 56N-
354 AM AKST Wed Feb 21 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...S to W wind 25 to 40 kt. Seas 12 to 18 ft.
.TONIGHT...W wind 20 to 35 kt diminishing to 20 kt after midnight. 
Seas 9 to 17 ft.
.THU...SE wind 15 to 30 kt. Seas 7 to 11 ft.
.THU NIGHT...S wind 20 to 35 kt. Seas 8 to 12 ft.
.FRI THROUGH SAT...SW wind 20 to 35 kt. Seas 10 to 18 ft.
.SUN...S wind 20 to 30 kt. Seas 14 to 22 ft.

$$

PKZ414-220230-
Bering Sea Offshore East of 171W-
354 AM AKST Wed Feb 21 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SW wind 25 to 35 kt. Seas 9 to 14 ft.
.TONIGHT...SW wind 20 to 35 kt. Seas 9 to 17 ft.
.THU...W wind 15 to 30 kt becoming SW up to 20 kt in the
afternoon. Seas 9 to 14 ft.
.THU NIGHT...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.FRI THROUGH SUN...SW wind 15 to 30 kt. Seas 10 to 18 ft.

$$

124 
FZAK62 PAFC 220012
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
312 PM AKST Wed Feb 21 2018

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.

PKZ499-221400-
312 PM AKST Wed Feb 21 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 997 mb low at 64N 176W moves 
inland near 68N 164W at 1000 mb with its front pushing into Western 
Alaska by Midday Thu. A 1006 mb low near 52N 177E Thu afternoon will 
move to 60N 178W at 993 mb Fri afternoon. The associated front will 
move across the Bering Sea Thu night and Fri.

$$

PKZ411-221400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
312 PM AKST Wed Feb 21 2018

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

.TONIGHT...S wind 10 to 25 kt. Seas 7 to 11 ft.
.THU...SE wind 20 to 35 kt. Seas 8 to 13 ft. Snow and rain.
.THU NIGHT...S wind 20 to 35 kt. Seas 11 to 16 ft. Snow with rain.
.FRI...SW wind 20 to 30 kt. Seas 14 to 22 ft.
.FRI NIGHT...W wind 30 kt. Seas 20 to 24 ft.
.SAT...SW wind 15 to 30 kt. Seas 10 to 18 ft.
.SUN...S wind up to 15 kt. Seas 15 to 23 ft.
.MON...W wind 15 to 25 kt. Seas 13 to 21 ft.

$$

PKZ412-221400-
Bering Sea Offshore 171W to 180 and North of 56N-
312 PM AKST Wed Feb 21 2018

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...W wind 15 to 30 kt. Seas 9 to 16 ft.
.THU...W wind up to 20 kt becoming SE 10 to 25 kt in the
afternoon. Seas 7 to 12 ft.
.THU NIGHT...E wind 25 to 40 kt. Seas 9 to 14 ft. Snow and rain.
.FRI...SW wind 25 to 40 kt. Seas 11 to 18 ft.
.FRI NIGHT...W wind 25 to 35 kt. Seas 15 to 22 ft.
.SAT...W wind 20 to 35 kt. Seas 13 to 21 ft.
.SUN...S wind 15 to 25 kt. Seas 14 to 22 ft.
.MON...SW wind 25 kt. Seas 17 to 26 ft.

$$

PKZ413-221400-
Bering Sea Offshore 171W to 180 and South of 56N-
312 PM AKST Wed Feb 21 2018

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...W wind 20 to 35 kt diminishing to up to 20 kt after
midnight. Seas 9 to 17 ft.
.THU...SE wind 10 to 25 kt increasing to 20 to 35 kt in the
afternoon. Seas 7 to 10 ft.
.THU NIGHT...S wind 20 to 35 kt. Seas 9 to 14 ft. Rain.
.FRI...W wind 20 to 30 kt. Seas 10 to 18 ft.
.FRI NIGHT...W wind 35 kt. Seas 15 to 23 ft.
.SAT...SW wind 20 to 35 kt. Seas 12 to 20 ft.
.SUN...S wind 20 to 30 kt. Seas 14 to 22 ft.
.MON...SW wind 20 to 30 kt. Seas 13 to 21 ft.

$$

PKZ414-221400-
Bering Sea Offshore East of 171W-
312 PM AKST Wed Feb 21 2018

...GALE WARNING TONIGHT...

.TONIGHT...W wind 20 to 35 kt. Seas 9 to 16 ft.
.THU...W wind 15 to 30 kt diminishing to up to 15 kt in the
afternoon. Seas 8 to 13 ft.
.THU NIGHT...SE wind 15 to 30 kt. Seas 6 to 11 ft. Rain.
.FRI...S wind 20 to 35 kt. Seas 7 to 12 ft.
.FRI NIGHT...W wind 20 to 35 kt. Seas 11 to 19 ft.
.SAT...W wind 25 to 35 kt. Seas 14 to 22 ft.
.SUN THROUGH MON...SW wind 15 to 30 kt. Seas 11 to 19 ft.

$$

512 
FZAK62 PAFC 221254
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
354 AM AKST Thu Feb 22 2018

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-
354 AM AKST Thu Feb 22 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1005 mb low at 49N 173E moves to 58N 177E at 996 mb by Fri
morning and then to 58N 173E at 1000 mb by Sat morning. A 1000 mb
low Fri afternoon at 60N 174W moves inland near 61N 165W by Sat
morning. The associated front will move across the Bering Sea 
through Fri afternoon.


$$

PKZ411-230145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
354 AM AKST Thu Feb 22 2018

...GALE WARNING THROUGH FRIDAY...

.TODAY...SE wind 20 to 35 kt. Seas 8 to 13 ft. Snow and rain.
.TONIGHT...S wind 25 to 35 kt. S of 56N...W wind 25 kt. Seas 11 to 
16 ft. Snow and rain.
.FRI...W wind 20 to 35 kt. Seas 14 to 20 ft.
.FRI NIGHT...W wind 25 to 40 kt. Seas 19 to 23 ft.
.SAT THROUGH MON...SW wind 25 to 40 kt. Seas 11 to 19 ft.

$$

PKZ412-230145-
Bering Sea Offshore 171W to 180 and North of 56N-
354 AM AKST Thu Feb 22 2018

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind up to 20 kt becoming SE 10 to 25 kt in the
afternoon. Seas 6 to 11 ft.
.TONIGHT...E wind 25 to 40 kt. Seas 9 to 14 ft. Snow and rain.
.FRI...SW wind 25 to 40 kt. Seas 11 to 18 ft. Rain.
.FRI NIGHT...W wind 30 to 45 kt. Seas 16 to 21 ft.
.SAT...SW wind 20 to 35 kt. Seas 13 to 21 ft.
.SUN...S wind 20 to 35 kt. Seas 10 to 18 ft.
.MON...SW wind 25 to 40 kt. Seas 13 to 28 ft.

$$

PKZ413-230145-
Bering Sea Offshore 171W to 180 and South of 56N-
354 AM AKST Thu Feb 22 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 10 to 25 kt increasing to 20 to 35 kt in the
afternoon. Seas 6 to 11 ft. Rain.
.TONIGHT...SE wind 20 to 35 kt becoming W 20 to 30 kt after 
midnight. Seas 9 to 14 ft. Rain.
.FRI...W wind 20 to 30 kt. Seas 10 to 18 ft.
.FRI NIGHT...W wind 30 to 40 kt. Seas 16 to 21 ft.
.SAT THROUGH MON...SW wind 25 to 40 kt. Seas 15 to 23 ft.

$$

PKZ414-230145-
Bering Sea Offshore East of 171W-
354 AM AKST Thu Feb 22 2018

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...W wind 15 to 30 kt diminishing to up to 15 kt in the
afternoon. Seas 7 to 11 ft.
.TONIGHT...SE wind 20 to 35 kt. Seas 7 to 12 ft. Snow and rain.
.FRI...SE wind 20 to 35 kt. Seas 8 to 13 ft.
.FRI NIGHT...W wind 25 to 35 kt. Seas 11 to 19 ft.
.SAT...W wind 20 to 35 kt. Seas 13 to 21 ft.
.SUN...S wind 20 to 35 kt. Seas 8 to 16 ft.
.MON...SW wind 20 to 35 kt. Seas 16 to 27 ft.

$$

849 
FZAK62 PAFC 230032
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
332 PM AKST Thu Feb 22 2018

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.

PKZ499-231415-
332 PM AKST Thu Feb 22 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1002 mb low at 52N 176E this afternoon will move to 60N 177W 
and strengthen to 996 mb Fri afternoon while sending a front 
eastward through the Bering and Aleutians. This low moves out of 
the area on Sunday. A 994 mb low develops at 52N 171E Saturday 
afternoon.

$$

PKZ411-231415-
Bering Sea Offshore West of 180 and East of the International
Dateline-
332 PM AKST Thu Feb 22 2018

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...SE wind 20 to 35 kt becoming SW after midnight. Seas
11 to 17 ft. Snow and rain.
.FRI...SW wind 25 to 35 kt. Seas 15 to 21 ft.
.FRI NIGHT...SW wind 25 to 35 kt. Seas 18 to 22 ft.
.SAT...SW wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT NIGHT...SE wind 25 to 40 kt. Seas 8 to 16 ft.
.SUN THROUGH MON...SW wind 25 to 40 kt. Seas 12 to 20 ft.
.TUE...SW wind 10 to 25 kt. Seas 9 to 14 ft.

$$

PKZ412-231415-
Bering Sea Offshore 171W to 180 and North of 56N-
332 PM AKST Thu Feb 22 2018

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt. Seas 9 to 14 ft. Snow and rain.
.FRI...SW wind 25 to 40 kt. Seas 12 to 19 ft. Snow and rain showers.
.FRI NIGHT...W wind 25 to 40 kt. Seas 16 to 21 ft.
.SAT...W wind 20 to 35 kt. Seas 17 to 22 ft.
.SAT NIGHT...S wind 25 to 40 kt. Seas 11 to 18 ft.
.SUN...S wind 25 to 40 kt. Seas 13 to 21 ft.
.MON THROUGH TUE...SW wind 25 to 40 kt. Seas 13 to 28 ft.

$$

PKZ413-231415-
Bering Sea Offshore 171W to 180 and South of 56N-
332 PM AKST Thu Feb 22 2018

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

.TONIGHT...SE wind 25 to 40 kt becoming SW 20 to 30 kt after
midnight. Seas 9 to 14 ft. Rain and snow.
.FRI...W wind 30 kt. Seas 12 to 18 ft.
.FRI NIGHT...W wind 30 to 40 kt. Seas 16 to 24 ft. Snow showers.
.SAT...SW wind 20 to 35 kt. Seas 15 to 23 ft.
.SAT NIGHT...S wind 20 to 35 kt. Seas 10 to 16 ft.
.SUN...SW wind 35 to 50 kt. Seas 15 to 30 ft.
.MON THROUGH TUE...SW wind 20 to 35 kt. Seas 15 to 23 ft.

$$

PKZ414-231415-
Bering Sea Offshore East of 171W-
332 PM AKST Thu Feb 22 2018

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...SE wind 20 to 35 kt. Seas 7 to 12 ft. Snow and rain.
.FRI...S wind 20 to 35 kt becoming SW in the afternoon. Seas 8 to
13 ft. Snow with rain.
.FRI NIGHT...W wind 30 to 40 kt. Seas 11 to 19 ft.
.SAT...W wind 25 to 40 kt. Seas 15 to 22 ft.
.SAT NIGHT...W wind 20 to 35 kt. Seas 11 to 19 ft.
.SUN...S wind 25 to 40 kt. Seas 11 to 19 ft.
.MON...SW wind 20 to 35 kt. Seas 16 to 27 ft.
.TUE...SW wind 15 to 30 kt. Seas 12 to 20 ft.

$$

056 
FZAK62 PAFC 231251
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
351 AM AKST Fri Feb 23 2018

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.

PKZ499-240245-
351 AM AKST Fri Feb 23 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 994 mb low at 57N 177E moves to 57N 170E at 1001 mb by Sat
morning and then to 57N 165E by Sat night. A 1002 mb low at 60N
175W Sat morning moves inland near 60N 165W by Sat night. A 983 mb
low Sat afternoon at 47N 170E moves to 53N 178E at 982 mb by Sun
morning.

$$

PKZ411-240245-
Bering Sea Offshore West of 180 and East of the International
Dateline-
351 AM AKST Fri Feb 23 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...E to SW wind 30 to 40 kt. Seas 15 to 22 ft.
.TONIGHT...SW wind 25 to 40 kt. Seas 18 to 24 ft.
.SAT...S wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT NIGHT...E wind 25 to 40 kt. Seas 10 to 16 ft.
.SUN THROUGH MON...W wind 25 to 40 kt. Seas 10 to 18 ft.
.TUE...S wind 20 to 35 kt. Seas 6 to 10 ft.

$$

PKZ412-240245-
Bering Sea Offshore 171W to 180 and North of 56N-
351 AM AKST Fri Feb 23 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...E to SW wind 25 to 40 kt. Seas 13 to 20 ft.
.TONIGHT...W wind 40 kt. Seas 18 to 24 ft.
.SAT...W wind 25 to 40 kt diminishing to 15 to 30 kt in the
afternoon. Seas 16 to 24 ft.
.SAT NIGHT...SE wind 25 to 40 kt. Seas 11 to 17 ft.
.SUN THROUGH MON...W wind 20 to 35 kt. Seas 12 to 20 ft.
.TUE...W wind 15 to 30 kt. Seas 7 to 10 ft.

$$

PKZ413-240245-
Bering Sea Offshore 171W to 180 and South of 56N-
351 AM AKST Fri Feb 23 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...W wind 35 kt. Seas 12 to 19 ft.
.TONIGHT...W wind 30 to 40 kt. Seas 18 to 23 ft.
.SAT...W wind 20 to 35 kt becoming SW 10 to 25 kt in the
afternoon. Seas 14 to 22 ft.
.SAT NIGHT...SE wind 25 to 40 kt. Seas 11 to 15 ft.
.SUN THROUGH MON...W wind 30 to 45 kt. Seas 14 to 29 ft.
.TUE...SW wind 15 to 30 kt. Seas 8 to 12 ft.

$$

PKZ414-240245-
Bering Sea Offshore East of 171W-
351 AM AKST Fri Feb 23 2018

...GALE WARNING THROUGH SATURDAY...

.TODAY...SE wind 30 to 45 kt early becoming SW wind 20 to 35 kt. 
Seas 9 to 14 ft. Snow.
.TONIGHT...W wind 30 to 40 kt. Seas 13 to 21 ft.
.SAT...W wind 25 to 40 kt. Seas 17 to 23 ft.
.SAT NIGHT...SW wind 15 to 30 kt. Seas 10 to 18 ft.
.SUN THROUGH MON...SW wind 25 to 40 kt. Seas 15 to 30 ft.
.TUE...W wind 20 to 30 kt. Seas 8 to 11 ft.

$$

435 
FZAK62 PAFC 240015
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
315 PM AKST Fri Feb 23 2018

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.

PKZ499-241430-
315 PM AKST Fri Feb 23 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 992 mb North Pacific low will move to 47N 169E Sat morning then
it will move to 58N 175W at 982 mb Sun afternoon. 

$$

PKZ411-241430-
Bering Sea Offshore West of 180 and East of the International
Dateline-
315 PM AKST Fri Feb 23 2018

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

.TONIGHT...SW wind 40 kt diminishing to 25 to 35 kt after midnight. 
Seas 18 to 26 ft.
.SAT...S wind 15 to 30 kt. Seas 13 to 21 ft. Snow.
.SAT NIGHT...E wind 25 to 40 kt. Seas 10 to 15 ft. Snow and rain.
.SUN...N wind 25 to 40 kt. Seas 14 to 22 ft.
.SUN NIGHT...W wind 15 to 30 kt. Seas 12 to 20 ft.
.MON...SW wind 15 to 30 kt. Seas 9 to 14 ft.
.TUE THROUGH WED...S wind 25 to 40 kt. Seas 9 to 14 ft.

$$

PKZ412-241430-
Bering Sea Offshore 171W to 180 and North of 56N-
315 PM AKST Fri Feb 23 2018

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...W wind 30 to 40 kt. Seas 18 to 28 ft.
.SAT...W wind 30 to 40 kt diminishing to 15 to 30 kt in the
afternoon. Seas 23 to 28 ft subsiding to 17 to 25 ft in the
afternoon.
.SAT NIGHT...S wind 10 to 25 kt becoming SE 20 to 35 kt after
midnight. Seas 11 to 19 ft subsiding to 10 to 13 ft after
midnight. Snow.
.SUN...SE wind 20 to 35 kt. Seas 11 to 18 ft.
.SUN NIGHT...NW wind 25 to 40 kt. Seas 14 to 22 ft.
.MON...W wind 15 to 30 kt. Seas 11 to 19 ft.
.TUE...W wind 15 to 30 kt. Seas 7 to 10 ft.
.WED...S wind 20 to 30 kt. Seas 9 to 14 ft.

$$

PKZ413-241430-
Bering Sea Offshore 171W to 180 and South of 56N-
315 PM AKST Fri Feb 23 2018

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

.TONIGHT...W wind 30 to 40 kt. Seas 17 to 24 ft.
.SAT...SW wind 15 to 30 kt. Seas 14 to 22 ft.
.SAT NIGHT...SE wind 25 to 40 kt. Seas 12 to 15 ft. Snow with
rain.
.SUN...SW wind 35 to 50 kt. Seas 17 to 32 ft.
.SUN NIGHT...W wind 35 to 50 kt. Seas 18 to 33 ft.
.MON...SW wind 15 to 30 kt. Seas 13 to 21 ft.
.TUE THROUGH WED...S wind 20 to 35 kt. Seas 8 to 16 ft.

$$

PKZ414-241430-
Bering Sea Offshore East of 171W-
315 PM AKST Fri Feb 23 2018

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...W wind 35 kt. Seas 13 to 21 ft.
.SAT...W wind 30 to 40 kt diminishing to 20 to 35 kt in the
afternoon. Seas 17 to 22 ft.
.SAT NIGHT...W wind 10 to 25 kt becoming S 15 to 30 kt after
midnight. Seas 10 to 18 ft. Snow.
.SUN...S wind 30 to 45 kt. Seas 13 to 21 ft.
.SUN NIGHT...SW wind 35 to 50 kt. Seas 18 to 33 ft.
.MON...W wind 25 to 40 kt. Seas 13 to 28 ft.
.TUE...W wind 20 to 30 kt. Seas 8 to 11 ft.
.WED...S wind 10 to 25 kt. Seas 7 ft.

$$

876 
FZAK62 PAFC 241308
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
408 AM AKST Sat Feb 24 2018

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.

PKZ499-250145-
408 AM AKST Sat Feb 24 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1002 mb low at 58N 177W will move inland near 60N 165W at 1014
mb by Sat night. A 992 mb low at 47N 169E will move to 55N 176E at
984 mb by Sun morning and then move inland near 61N 162W at 983 mb
by Mon morning. A 1002 mb low Sun morning at 46N 164E will move to
51N 173E at 1007 mb by Mon morning.

$$

PKZ411-250145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
408 AM AKST Sat Feb 24 2018

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...W wind 15 to 30 kt becoming S in the afternoon. Seas 11 to 
19 ft. Snow.
.TONIGHT...E wind 25 to 40 kt. Seas 10 to 16 ft. Snow with rain.
.SUN...North of 56N... NE wind 25 to 40 kt. South of 56N... NW to SW
wind 30 to 45 kt. Seas 14 to 22 ft. Snow with rain.
.SUN NIGHT...NW wind 20 to 35 kt. Seas 13 to 21 ft.
.MON THROUGH TUE...S wind 20 to 35 kt. Seas 8 to 13 ft.
.WED...SE wind 30 to 40 kt. Seas 16 to 29 ft.

$$

PKZ412-250145-
Bering Sea Offshore 171W to 180 and North of 56N-
408 AM AKST Sat Feb 24 2018

...GALE WARNING THROUGH SUNDAY...

.TODAY...W wind 25 to 40 kt. Seas 16 to 28 ft.
.TONIGHT...S wind 10 to 25 kt becoming E 25 to 40 kt after
midnight. Seas 10 to 16 ft. Snow.
.SUN...S wind 20 to 35 kt. Seas 12 ft building to 11 to 19 ft in
the afternoon. Snow and rain.
.SUN NIGHT...NW wind 20 to 35 kt. Seas 13 to 27 ft.
.MON THROUGH TUE...W wind 20 to 35 kt. Seas 9 to 17 ft.
.WED...SE wind 20 to 35 kt. Seas 12 to 20 ft.

$$

PKZ413-250145-
Bering Sea Offshore 171W to 180 and South of 56N-
408 AM AKST Sat Feb 24 2018

...STORM WARNING SUNDAY...

.TODAY...SW wind 20 to 35 kt becoming S 10 to 25 kt in the
afternoon. Seas 13 to 21 ft.
.TONIGHT...SE wind 25 to 40 kt becoming S after midnight. Seas 11
to 15 ft. Snow with rain.
.SUN...SW wind 35 to 50 kt. Seas 14 to 22 ft building to 18 to 33
ft in the afternoon. Rain.
.SUN NIGHT...W wind 35 to 50 kt. Seas 19 to 34 ft.
.MON THROUGH TUE...SW wind 15 to 30 kt. Seas 11 to 19 ft.
.WED...S wind 25 to 35 kt. Seas 11 to 19 ft.

$$

PKZ414-250145-
Bering Sea Offshore East of 171W-
408 AM AKST Sat Feb 24 2018

...GALE WARNING TODAY AND SUNDAY...

.TODAY...W wind 30 to 40 kt diminishing to 20 to 35 kt in the
afternoon. Seas 17 to 23 ft.
.TONIGHT...W wind 15 to 30 kt becoming SE after midnight. Seas 11
to 19 ft. Snow.
.SUN...SE wind 20 to 35 kt becoming SW 30 to 45 kt in the
afternoon. Seas 11 to 19 ft. Snow with rain.
.SUN NIGHT...SW wind 35 to 50 kt. Seas 18 to 33 ft.
.MON...W wind 30 to 45 kt. Seas 14 to 29 ft.
.TUE...W wind 15 to 30 kt. Seas 9 to 15 ft.
.WED...SE wind 15 to 30 kt. Seas 5 to 10 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
438 PM AKST Sun Feb 18 2018

.ANALYSIS AND UPPER LEVELS...
The remnants of the warm front that brought snow and rain to the
Southwest Mainland overnight into this afternoon is continuing to
spread eastward into the Gulf early this afternoon. This development
is becoming more and more apparent with each scan from the Kenai
radar, and this trend is expected to continue and spread northward
through Cook Inlet by this evening. Behind the front, the cold/dry
air is readily apparent on satellite and radar imagery with an
abrupt shift from widespread snow to clearing and showers. Over
the Western-Central Aleutians a mature storm force front brought
a brief round of hurricane force wind gusts to the Adak area
earlier this morning. Cold/dry air is wrapping in behind the low
and heading toward the Central Aleutians, which is now expected
to bring another round of high winds to the area this evening.

&&

.MODEL DISCUSSION...
The models remain in generally good synoptic agreement through
Monday with the general pattern, though there remains some
uncertainty in particular with how much precipitation will move
into Northern Cook Inlet and the North Gulf Coast this evening
from the weakening front begins to fall apart. Radar trends this
afternoon however are beginning to bring snowfall slightly faster
than many of the models, though based on this trend there is
still good confidence in deteriorating conditions throughout Cook
Inlet this afternoon into this evening. The other question is with
how much precipitation is expected, as there is a significant
spread between the GFS which is mostly dry in the Anchorage Bowl
and the rest of the models that bring in light amounts. With good
southwest flow and moisture advection ahead of the snow and no
downsloping present to limit precipitation from reaching the
ground this dry GFS solution was ignored for the afternoon package
in favor of the light amounts from the rest of the guidance.

&&

.AVIATION...
PANC...A brief period of snow will bring temporary IFR
visibilities, though ceilings are expected to remain MVFR. After
04Z more unstable air arrives and expect a period of VFR conditions.
As this air mass settles in overnight, an upper level ridge will
build overhead, which will bring a quick return to stratus potential.
Depending on how much snow falls, this could come in earlier than
the current taf indicates. While fog can't completely be ruled
out, the cooler and drier airmass will limit temperature
inversion, so it seems more favorable for stratus with an IFR
ceiling.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
A weak front across the central Gulf to the Susitna Valley moves
east overnight bringing a brief period of snow across the southern
mainland. Ridging builds in behind this front with drier
conditions returning through Wednesday afternoon. Patchy fog
along Cook Inlet is expected to develop each night with a stable
air mass in place, and should diminish during the late morning
hours. Winds will generally be light through mid week with
offshore flow gusty at times through Whittier and Seward from
weak gradient forcing.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...
(Tonight through Wednesday evening)
An unsettled pattern will continue over the next few days. This
afternoon a weak front is currently moving across the southwest
mainland, and this front looks to reach the Alaska Range in the
next few hours, with drying conditions following in its wake. The
real question tonight will be patchy fog coverage, mainly south of
a Cape Newenham to Port Heiden line. Here, decreased coverage of
mid to high-level cloud cover may allow enough breaks for
radiational fog to develop. As such, some patchy fog was included
in the forecast. Further north, the cloud shield looks more robust
in coverage, mitigating the fog potential enough not to include
any mention of it.

Another front looks to reach the coast tomorrow afternoon,
sweeping eastward through the evening and into the overnight
hours, with fairly widespread rain and snow accompanying it. This
system will clear the area by Tuesday morning, as another brief
ridge of high pressure brings clearing skies with drier conditions.
This will be short-lived however (sound familiar?), as a third
front approaches by Tuesday evening, with rain and snow potential
once again on the increase.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...
(Tonight through Wednesday evening)
A familiar pattern looks to continue through the next few days,
as a series of low pressure systems and their associated fronts
cross the region. The first such storm is crossing the western
Aleutians right now, with ship observations and the latest
scatterometer pass showing storm force winds accompanying the
low/cold front across the western Bering, through the western
chain, into the north Pacific. Winds just below storm force are
also seen along a northward advancing warm front which looks to
continue affecting the central portions of the Bering Sea/Pribilof
Islands through this evening. Widespread precipitation will
accompany both fronts as well.

The real story will be the air mass/wind gust potential
immediately behind the cold front. For this evening into the
overnight hours, the low, currently near 960 mb, will generally
remain at about the same strength as it treks northward toward
the eastern Kamchatka Peninsula. As it does so, a 120 kt mid-level
jet will cross the front across the west-central portions of the
Bering Sea and Aleutian chain. At the same time, a strong vort
max will rotate through the region with strong dry and cold
advection continuing, aided by a decent PV anomaly (on the order
of 500mb). This anomaly will just compress the air more, and when
combined with the dry/cold advection, enhanced downward mixing
potential will be enhanced. With this in mind and based on the
observations that winds over-achieved earlier this morning at Atka
in the typically weaker warm advection pattern, the high wind
warming for this area which was issued earlier is being maintained.
Hurricane force gusts are expected, with winds topping out in the
80 mph range. Further east toward the eastern portions of the
chain, storm force wind gusts are likely, with even weaker winds
(gales) toward the AKpen.

As this system moves northward through much of the north central
Bering tomorrow, the disturbance aloft substantially weakens,
with just storm force winds expected. However, a favorable fetch
length will keep seas elevated in the 30 to 35 feet range. A pair
of systems looks to approach the region for Tuesday and Wednesday,
but they will be considerably weaker. Widespread precipitation
will accompany each system from tonight through Wednesday, mainly
along the associated fronts crossing the region from west to east
through the period.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The general trend for the long-term forecast beginning the middle
of this week will be for continued active weather moving from the
Bering Sea and across Mainland Alaska into next weekend. This
will be produced by a flattening of the ridge that has set-up
over the North Pacific, allowing for a broad westerly jet to
stretch from the Aleutians through the AK mainland and into
British Columbia. With the more progressive zonal flow, the
primary challenge in the extended will be timing of each storm
system. With lower amplitude waves, this is a favorable pattern
for snow over Southcentral Alaska, including Anchorage. Southwest
will be more exposed to a brief warm-up with each system, so will
likely see a mix of rain and snow.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Storm Warning 177 178 185.
 Gale Warning 165 170 171 172 173 174 175 176 179 180 181.

&&

SYNOPSIS AND MODEL DISCUSSION...DEK
SOUTHCENTRAL ALASKA...KH
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PD
LONG TERM...DEK/SEB