Gale Warning 493, NWS Anchorage, AK

594 
FZAK62 PAFC 302328
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
328 PM AKDT Sun Sep 30 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.

PKZ499-011330-
328 PM AKDT Sun Sep 30 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 mb low at 50N 166W moves to 57N 163W at 994 mb by Mon
afternoon and then weakens and dissipates by Mon night. A 955 mb
low Mon afternoon at 54N 168E moves to 57N 171E at 942 mb by Tue 
afternoon.

$$

PKZ411-011330-
Bering Sea Offshore West of 180 and East of the International
Dateline-
328 PM AKDT Sun Sep 30 2018

...STORM WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 9 ft.
.MON...SW wind 15 to 25 kt becoming S 35 to 50 kt south of 56N in 
the afternoon. Seas 9 ft building to 15 to 25 ft south of 56N. Rain.
.MON NIGHT...S wind 45 to 60 kt. Seas 15 to 25 ft building to 20 to 
30 ft after midnight. Rain.
.TUE...SW wind 30 to 45 kt. Seas 20 to 28 ft.
.TUE NIGHT...SW wind 40 to 55 kt. Seas 23 to 33 ft.
.WED...NW wind 40 to 55 kt. Seas 15 to 30 ft.
.THU THROUGH FRI...NW wind up to 20 kt. Seas 6 to 11 ft.

$$

PKZ412-011330-
Bering Sea Offshore 171W to 180 and North of 56N-
328 PM AKDT Sun Sep 30 2018

...GALE WARNING MONDAY NIGHT...

.TONIGHT...Variable wind 15 kt becoming NW wind 15 to 25 kt by
midnight. Seas 6 to 9 ft.
.MON...W wind 15 to 30 kt. Seas 7 to 10 ft.
.MON NIGHT...SW wind 15 to 30 kt becoming S 30 to 45 kt after
midnight. Seas 8 ft building to 9 to 14 ft after midnight.
.TUE...S wind 25 to 35 kt. Seas 11 to 19 ft.
.TUE NIGHT...S wind 20 to 35 kt. Seas 14 to 22 ft.
.WED...S wind 30 to 45 kt. Seas 15 to 30 ft.
.THU...W wind up to 20 kt. Seas 9 to 14 ft.
.FRI...SE wind up to 20 kt. Seas 5 to 9 ft.

$$

PKZ413-011330-
Bering Sea Offshore 171W to 180 and South of 56N-
328 PM AKDT Sun Sep 30 2018

...GALE WARNING MONDAY NIGHT...

.TONIGHT...Variable wind 15 kt becoming NW wind 15 to 30 kt by
midnight. Seas 6 to 11 ft.
.MON...W wind 15 to 30 kt. Seas 7 to 11 ft.
.MON NIGHT...S wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.TUE...SW wind 25 to 40 kt. Seas 13 to 20 ft.
.TUE NIGHT...SW wind 35 to 50 kt. Seas 14 to 28 ft.
.WED...SW wind 35 to 50 kt. Seas 17 to 32 ft.
.THU THROUGH FRI...SW wind 10 to 25 kt. Seas 9 to 14 ft.

$$

PKZ414-011330-
Bering Sea Offshore East of 171W-
328 PM AKDT Sun Sep 30 2018

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E wind 25 to 40 kt becoming N west of 167W. Seas 8 to 16 
ft. Rain.
.MON...N wind 20 to 35 kt except E 25 kt east of 167W. Seas 9 to 15 
ft. Rain.
.MON NIGHT...W wind 20 to 35 kt. Seas 7 to 12 ft.
.TUE...S wind 25 to 40 kt. Seas 8 to 13 ft.
.TUE NIGHT...S wind 15 to 30 kt. Seas 10 to 15 ft.
.WED THROUGH THU...S wind 20 to 35 kt. Seas 12 to 20 ft.
.FRI...S wind 20 kt. Seas 8 ft.

$$

136 
FZAK62 PAFC 011138
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
338 AM AKDT Mon Oct 1 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.

PKZ499-020130-
338 AM AKDT Mon Oct 1 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 985 mb low at 52N 163W moves over Bristol Bay at 994 mb Mon
evening and then dissipates. A 960 mb low enters the western
Bering Mon afternoon and moves to 56N 178E at 953 mb Tue night.

$$

PKZ411-020130-
Bering Sea Offshore West of 180 and East of the International
Dateline-
338 AM AKDT Mon Oct 1 2018

...STORM WARNING THROUGH TONIGHT...

.TODAY...SW wind 15 to 25 kt becoming S 35 to 50 kt in the
afternoon. Seas 8 ft building to 9 to 15 ft in the afternoon.
Rain.
.TONIGHT...S wind 45 to 60 kt. Seas 14 to 22 ft. Rain.
.TUE...SW wind 30 to 45 kt. Seas 19 to 25 ft.
.TUE NIGHT...SW wind 40 to 55 kt. Seas 20 to 35 ft.
.WED...NW wind 35 to 50 kt. Seas 16 to 31 ft.
.THU THROUGH FRI...W wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ412-020130-
Bering Sea Offshore 171W to 180 and North of 56N-
338 AM AKDT Mon Oct 1 2018

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...W wind 15 to 30 kt. Seas 7 to 10 ft.
.TONIGHT...SW wind 15 to 30 kt becoming S 30 to 45 kt after
midnight. Seas 8 to 13 ft. Rain.
.TUE...S wind 20 to 35 kt. Seas 10 to 18 ft.
.TUE NIGHT...S wind 20 to 35 kt. Seas 13 to 19 ft.
.WED...S wind 25 to 40 kt. Seas 16 to 24 ft.
.THU...SW wind 25 to 40 kt. Seas 12 to 20 ft.
.FRI...SE wind 10 to 20 kt. Seas 7 to 10 ft.

$$

PKZ413-020130-
Bering Sea Offshore 171W to 180 and South of 56N-
338 AM AKDT Mon Oct 1 2018

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...W wind 15 to 30 kt. Seas 7 to 11 ft.
.TONIGHT...S wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.TUE...SW wind 30 to 40 kt. Seas 12 to 20 ft.
.TUE NIGHT...SW wind 35 to 50 kt. Seas 16 to 24 ft.
.WED...SW wind 40 to 55 kt. Seas 19 to 34 ft.
.THU...SW wind 25 to 40 kt. Seas 12 to 20 ft.
.FRI...S wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-020130-
Bering Sea Offshore East of 171W-
338 AM AKDT Mon Oct 1 2018

...GALE WARNING THROUGH TUESDAY...

.TODAY...N wind 20 to 35 kt. Seas 8 to 13 ft. Rain showers.
.TONIGHT...W wind 20 to 35 kt. Seas 7 to 12 ft.
.TUE...S wind 25 to 40 kt. Seas 8 to 13 ft. Rain.
.TUE NIGHT...S wind 15 to 30 kt. Seas 9 to 14 ft.
.WED THROUGH THU...S wind 20 to 35 kt. Seas 15 to 23 ft.
.FRI...SE wind 20 kt. Seas 6 to 10 ft.

$$

491 
FZAK62 PAFC 012347
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
347 PM AKDT Mon Oct 1 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.

PKZ499-021330-
347 PM AKDT Mon Oct 1 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 990 mb low at 56N 162W moves to 59N 165W at 995 mb dissipating 
Tue morning. Its front wraps into Southwest Alaska through Wed 
afternoon. A 968 mb low near 53N 168E loops to 59N 174E at 955 mb 
Tue afternoon shifting to 56N 177W at 958 mb Wed afternoon. Its 
front pushes over the Alaska Peninsula for Wed afternoon.

$$

PKZ411-021330-
Bering Sea Offshore West of 180 and East of the International
Dateline-
347 PM AKDT Mon Oct 1 2018

...STORM WARNING TONIGHT AND TUESDAY NIGHT...

.TONIGHT...S wind 45 to 60 kt. Seas 14 to 22 ft. Rain showers.
.TUE...SW wind 30 to 45 kt. Seas 19 to 25 ft.
.TUE NIGHT...SW wind 40 to 55 kt. Seas 20 to 35 ft. Rain showers.
.WED...NW wind 35 to 50 kt. Seas 19 to 34 ft.
.WED NIGHT...NW wind 20 to 35 kt. Seas 12 to 20 ft.
.THU THROUGH FRI...W wind 10 to 25 kt. Seas 7 to 12 ft.
.SAT...E wind up to 15 kt. Seas 6 ft.

$$

PKZ412-021330-
Bering Sea Offshore 171W to 180 and North of 56N-
347 PM AKDT Mon Oct 1 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...SW wind 15 to 30 kt becoming S 30 to 45 kt after
midnight. Seas 8 to 13 ft. Rain showers.
.TUE...S wind 20 to 35 kt. Seas 10 to 18 ft.
.TUE NIGHT...SW wind 25 kt becoming S after midnight. Seas 13 to
19 ft.
.WED...S wind 25 to 40 kt. Seas 15 to 26 ft.
.WED NIGHT...NW wind 25 to 40 kt. Seas 16 to 24 ft.
.THU...SW wind 25 to 40 kt. Seas 12 to 20 ft.
.FRI THROUGH SAT...SE wind 10 to 20 kt. Seas 5 to 10 ft.

$$

PKZ413-021330-
Bering Sea Offshore 171W to 180 and South of 56N-
347 PM AKDT Mon Oct 1 2018

...STORM WARNING TUESDAY NIGHT...

.TONIGHT...S wind 30 to 45 kt. Seas 9 to 17 ft. Rain showers.
.TUE...SW wind 30 to 40 kt. Seas 12 to 20 ft.
.TUE NIGHT...SW wind 20 to 35 kt increasing to 35 to 50 kt after
midnight. Seas 16 to 24 ft.
.WED...SW wind 40 to 55 kt. Seas 19 to 34 ft.
.WED NIGHT...W wind 35 to 50 kt. Seas 17 to 32 ft.
.THU...SW wind 25 to 40 kt. Seas 12 to 20 ft.
.FRI THROUGH SAT...S wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-021330-
Bering Sea Offshore East of 171W-
347 PM AKDT Mon Oct 1 2018

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...W wind 20 to 35 kt. Seas 7 to 12 ft.
.TUE...S wind 25 to 40 kt. Seas 8 to 13 ft.
.TUE NIGHT...S wind 15 to 30 kt. Seas 9 to 14 ft.
.WED...SW wind 20 to 35 kt. Seas 11 to 19 ft.
.WED NIGHT...S wind 25 to 35 kt. Seas 15 to 23 ft.
.THU...S wind 25 to 35 kt. Seas 15 to 23 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 6 to 10 ft.

$$

877 
FZAK62 PAFC 021150
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 AM AKDT Tue Oct 2 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.

PKZ499-030145-
350 AM AKDT Tue Oct 2 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 995 mb low at 59N 165W dissipates Tue morning. A 960 mb low at
56N 174E moves to 55N 178E Tue night and then moves to 58N 172W
Wed night at 960 mb.

$$

PKZ411-030145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 AM AKDT Tue Oct 2 2018

...STORM WARNING THROUGH WEDNESDAY...

.TODAY...SW wind 35 to 50 kt. N of 56 N, E wind 20 to 35 kt. Seas 17
to 24 ft. Rain.
.TONIGHT...SW wind 40 to 55 kt. N of 56 N, E wind 20 kt. Seas 19 to 
34 ft.
.WED...NW wind 35 to 50 kt diminishing to 20 to 35 kt in the
afternoon. Seas 16 to 31 ft.
.WED NIGHT...NW wind 20 to 35 kt. Seas 11 to 19 ft.
.THU...NW wind 10 to 25 kt. Seas 7 to 12 ft.
.FRI...W wind up to 20 kt. Seas 7 to 10 ft.
.SAT...SE wind up to 15 kt. Seas 5 to 8 ft.

$$

PKZ412-030145-
Bering Sea Offshore 171W to 180 and North of 56N-
350 AM AKDT Tue Oct 2 2018

...GALE WARNING TODAY...

.TODAY...S wind 20 to 35 kt. Seas 9 to 17 ft. Rain.
.TONIGHT...S wind 15 to 25 kt. Seas 13 to 19 ft.
.WED...E of 175 W, S wind 15 to 30 kt becoming E in the afternoon. W
of 175 W, SE wind 15 to 30 kt becoming N in the afternoon. Seas 15 
to 21 ft.
.WED NIGHT...N wind 15 to 30 kt. Seas 13 to 21 ft.
.THU...W wind 15 to 30 kt. Seas 9 to 14 ft.
.FRI THROUGH SAT...SE wind 10 to 20 kt. Seas 6 to 10 ft.

$$

PKZ413-030145-
Bering Sea Offshore 171W to 180 and South of 56N-
350 AM AKDT Tue Oct 2 2018

...STORM WARNING WEDNESDAY...

.TODAY...SW wind 25 to 35 kt. Seas 12 to 20 ft.
.TONIGHT...SW wind 25 to 35 kt increasing to 30 to 45 kt after
midnight. Seas 15 to 26 ft.
.WED...SW wind 40 to 55 kt. Seas 19 to 34 ft. Rain showers.
.WED NIGHT...W wind 35 to 50 kt. Seas 16 to 31 ft.
.THU...SW wind 15 to 30 kt. Seas 10 to 18 ft.
.FRI THROUGH SAT...S wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-030145-
Bering Sea Offshore East of 171W-
350 AM AKDT Tue Oct 2 2018

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...S wind 20 to 35 kt. Seas 8 to 13 ft. Widespread rain
showers.
.TONIGHT...S wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 10 to 14 ft.
.WED...SW wind 15 to 30 kt becoming S 25 to 40 kt in the
afternoon.
Seas 11 to 19 ft.
.WED NIGHT...S wind 25 to 40 kt. Seas 13 to 28 ft.
.THU...S wind 20 to 35 kt. Seas 13 to 21 ft.
.FRI THROUGH SAT...S wind 20 kt. Seas 6 to 11 ft.

$$

426 
FZAK62 PAFC 022342
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
342 PM AKDT Tue Oct 2 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.

PKZ499-031300-
342 PM AKDT Tue Oct 2 2018
.SYNOPSIS FOR CENTRAL BERING SEA...
A 950 mb low at 57N 174E loops to 60N 176W at 964 mb for Thu 
afternoon. Its front swings across the Aleutians and Bering into 
the Gulf of Alaska by Thu afternoon. Several troughs move across 
the Aleutians through Thu afternoon.

$$

PKZ411-031300-
Bering Sea Offshore West of 180 and East of the International
Dateline-
342 PM AKDT Tue Oct 2 2018

...STORM WARNING THROUGH WEDNESDAY...

.TONIGHT...SW wind 40 to 55 kt. Seas 19 to 34 ft.
.WED...NW wind 35 to 50 kt diminishing to 20 to 35 kt in the
afternoon. Seas 16 to 31 ft.
.WED NIGHT...NW wind 20 to 35 kt. Seas 11 to 19 ft.
.THU...NW wind 10 to 25 kt. Seas 8 to 12 ft.
.THU NIGHT...NW wind 10 to 25 kt. Seas 7 to 10 ft.
.FRI...W wind up to 20 kt. Seas 7 to 10 ft.
.SAT...SE wind up to 15 kt. Seas 5 to 8 ft.
.SUN...E wind up to 15 kt. Seas 4 to 7 ft.

$$

PKZ412-031300-
Bering Sea Offshore 171W to 180 and North of 56N-
342 PM AKDT Tue Oct 2 2018

.TONIGHT...S wind 15 to 25 kt. Seas 13 to 19 ft.
.WED...E wind 15 to 30 kt. Seas 15 to 21 ft.
.WED NIGHT...N wind 15 to 30 kt. Seas 13 to 21 ft.
.THU...W wind 15 to 30 kt. Seas 10 to 15 ft.
.THU NIGHT...SW wind 10 to 25 kt. Seas 8 to 12 ft.
.FRI THROUGH SUN...S wind 10 to 20 kt. Seas 5 to 10 ft.

$$

PKZ413-031300-
Bering Sea Offshore 171W to 180 and South of 56N-
342 PM AKDT Tue Oct 2 2018

...STORM WARNING WEDNESDAY AND WEDNESDAY NIGHT...

.TONIGHT...SW wind 25 to 35 kt increasing to 30 to 45 kt after
midnight. Seas 15 to 26 ft.
.WED...SW wind 40 to 55 kt. Seas 19 to 34 ft. Rain showers.
.WED NIGHT...W wind 35 to 50 kt diminishing to 25 to 40 kt after
midnight. Seas 16 to 31 ft.
.THU...SW wind 15 to 30 kt. Seas 11 to 19 ft.
.THU NIGHT...SW wind 15 to 25 kt. Seas 8 to 13 ft.
.FRI THROUGH SUN...S wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-031300-
Bering Sea Offshore East of 171W-
342 PM AKDT Tue Oct 2 2018

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...S wind 20 to 35 kt diminishing to 15 to 25 kt after
midnight. Seas 10 to 14 ft.
.WED...SW wind 15 to 30 kt becoming S 25 to 40 kt in the
afternoon. Seas 11 to 19 ft.
.WED NIGHT...S wind 25 to 40 kt. Seas 16 to 29 ft. Rain showers.
.THU...SW wind 25 to 35 kt. Seas 15 to 23 ft.
.THU NIGHT...S wind 15 to 25 kt. Seas 10 to 16 ft.
.FRI THROUGH SUN...S wind 20 kt. Seas 6 to 11 ft.

$$

962 
FZAK62 PAFC 031150
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
350 AM AKDT Wed Oct 3 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.

PKZ499-040145-
350 AM AKDT Wed Oct 3 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 959 mb low at 55N 179E moves to 58N 171W at 961 mb Wed night and
then moves to 60N 179W at 970 mb Thu night. A second 987 mb low
forms at 52N 168W Thu night.

$$

PKZ411-040145-
Bering Sea Offshore West of 180 and East of the International
Dateline-
350 AM AKDT Wed Oct 3 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 30 to 45 kt. Seas 15 to 28 ft. Isolated
thunderstorms in the afternoon.
.TONIGHT...NW wind 20 to 35 kt. Seas 11 to 19 ft.
.THU...NW wind 10 to 25 kt. Seas 8 to 13 ft.
.THU NIGHT...NW wind up to 20 kt. Seas 6 to 9 ft.
.FRI...SW wind up to 15 kt. Seas 5 to 9 ft.
.SAT...SE wind up to 15 kt. Seas 6 ft.
.SUN...E wind 10 kt. Seas 3 to 6 ft.

$$

PKZ412-040145-
Bering Sea Offshore 171W to 180 and North of 56N-
350 AM AKDT Wed Oct 3 2018

...GALE WARNING THROUGH TONIGHT...

.TODAY...E wind 25 to 40 kt. Seas 15 to 23 ft. Isolated
thunderstorms.
.TONIGHT...N wind 20 to 35 kt. E of 175 W, E wind 20 kt to 35 kt
becoming NW after midnight. Seas 14 to 22 ft. Rain showers. Isolated
thunderstorms in the evening.
.THU...W wind 15 to 30 kt. Seas 9 to 15 ft.
.THU NIGHT...SW wind 10 to 25 kt. Seas 8 to 13 ft.
.FRI THROUGH SUN...SE wind 10 to 20 kt. Seas 6 to 10 ft.

$$

PKZ413-040145-
Bering Sea Offshore 171W to 180 and South of 56N-
350 AM AKDT Wed Oct 3 2018

...STORM WARNING TODAY...

.TODAY...W wind 35 to 50 kt. E of 175 W, S wind 35 kt to 50 kt
becoming W in the afternoon. Seas 21 to 34 ft. Isolated 
thunderstorms
.TONIGHT...W wind 30 to 45 kt. Seas 16 to 28 ft.
.THU...SW wind 15 to 30 kt. Seas 12 to 20 ft.
.THU NIGHT...SW wind 10 to 25 kt. Seas 9 to 14 ft.
.FRI THROUGH SUN...S wind 10 to 20 kt. Seas 6 to 9 ft.

$$

PKZ414-040145-
Bering Sea Offshore East of 171W-
350 AM AKDT Wed Oct 3 2018

...GALE WARNING THROUGH THURSDAY...

.TODAY...S wind 25 to 40 kt. Seas 12 to 20 ft. Isolated 
thunderstorms in the afternoon.
.TONIGHT...S wind 25 to 40 kt. Seas 16 to 26 ft. Rain showers.
Isolated thunderstorms.
.THU...SW wind 35 kt. Seas 15 to 23 ft.
.THU NIGHT...S wind 25 kt. Seas 10 to 16 ft.
.FRI THROUGH SUN...S wind 10 to 25 kt. Seas 5 to 10 ft.

$$

809 
FZAK62 PAFC 032354
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
354 PM AKDT Wed Oct 3 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.

PKZ499-041315-
354 PM AKDT Wed Oct 3 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A 959 mb low at 56N 174W loops towards Kamchatka at 981 mb for 
Fri afternoon. Its front wraps over the Aleutians and Bering 
through Fri afternoon. A 976 mb low forms near 60N 177E Thu 
morning arching to 55N 177E at 980 mb by Fri afternoon. Troughs 
rotate over the Aleutians and Bering through Thu afternoon.

$$

PKZ411-041315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
354 PM AKDT Wed Oct 3 2018

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 25 to 35 kt S of 56N, N wind 10 kt N of 56N. Seas
10 to 18 ft.
.THU...NW wind 10 to 25 kt diminishing to up to 15 kt in the
afternoon. Seas 8 to 13 ft.
.THU NIGHT...NW wind 10 to 20 kt. Seas 8 ft.
.FRI...W wind up to 20 kt. Seas 5 to 8 ft.
.FRI NIGHT...E wind up to 15 kt. Seas 5 to 8 ft.
.SAT...SE wind up to 15 kt. Seas 6 ft.
.SUN...E wind 10 kt. Seas 3 to 6 ft.
.MON...NW wind 10 kt. Seas 4 ft.

$$

PKZ412-041315-
Bering Sea Offshore 171W to 180 and North of 56N-
354 PM AKDT Wed Oct 3 2018

...GALE WARNING TONIGHT...

.TONIGHT...E wind 20 to 35 kt N of 57N, W wind 20 to 35 kt S of 57N.
Seas 13 to 21 ft. Isolated thunderstorms.
.THU...W wind 10 to 25 kt. Seas 9 to 15 ft.
.THU NIGHT...S wind 10 to 25 kt. Seas 8 to 12 ft.
.FRI...S wind 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT...SE wind 20 kt. Seas 7 ft.
.SAT THROUGH MON...SE wind up to 20 kt. Seas 6 to 11 ft.

$$

PKZ413-041315-
Bering Sea Offshore 171W to 180 and South of 56N-
354 PM AKDT Wed Oct 3 2018

...GALE WARNING TONIGHT...

.TONIGHT...W wind 25 to 40 kt. Seas 16 to 28 ft.
.THU...SW wind 15 to 30 kt. Seas 12 to 20 ft.
.THU NIGHT...SW wind 10 to 25 kt. Seas 8 to 13 ft.
.FRI...S wind 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...S wind 20 kt. Seas 7 ft.
.SAT THROUGH MON...S wind 10 to 20 kt. Seas 6 to 11 ft.

$$

PKZ414-041315-
Bering Sea Offshore East of 171W-
354 PM AKDT Wed Oct 3 2018

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...S wind 25 to 40 kt. Seas 15 to 27 ft. Rain showers and
isolated thunderstorms.
.THU...SW wind 25 to 35 kt. Seas 15 to 23 ft.
.THU NIGHT...S wind 15 to 25 kt. Seas 11 to 15 ft.
.FRI...SE wind 15 to 25 kt. Seas 7 to 10 ft.
.FRI NIGHT...S wind 10 to 20 kt. Seas 5 to 9 ft.
.SAT THROUGH MON...SE wind 20 kt. Seas 5 to 10 ft.

$$

227 
FZAK62 PAFC 041148
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
348 AM AKDT Thu Oct 4 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.

PKZ499-050045-
348 AM AKDT Thu Oct 4 2018
.SYNOPSIS FOR CENTRAL BERING SEA...A 964 mb low at 58N 169W exits
the Bering to the northwest at 976 mb Thu night. A 979 mb low at 56N
175E Thu night moves to 54N 177E at 986 mb Fri night.

$$

PKZ411-050045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
348 AM AKDT Thu Oct 4 2018

.TODAY...NW wind 10 to 25 kt diminishing to up to 15 kt in the
afternoon. Seas 8 to 12 ft. Slight chance of thunderstorms.
.TONIGHT...W wind 10 to 20 kt. Seas 6 to 9 ft. Slight chance of
thunderstorms in the evening.
.FRI...W wind 10 to 20 kt. Seas 5 to 9 ft.
.FRI NIGHT...NE wind up to 15 kt. Seas 5 to 8 ft.
.SAT THROUGH SUN...SE wind up to 20 kt. Seas 3 to 6 ft.
.MON...W wind 10 kt. Seas 4 ft.

$$

PKZ412-050045-
Bering Sea Offshore 171W to 180 and North of 56N-
348 AM AKDT Thu Oct 4 2018

.TODAY...W wind 10 to 25 kt. Seas 9 to 15 ft. Slight chance of
thunderstorms.
.TONIGHT...S wind 10 to 25 kt. Seas 7 to 11 ft. Slight chance of
thunderstorms in the evening.
.FRI...SE wind 10 to 25 kt. Seas 6 to 10 ft.
.FRI NIGHT...SE wind 10 to 20 kt. Seas 7 ft.
.SAT THROUGH MON...SE wind 10 to 20 kt. Seas 4 to 7 ft.

$$

PKZ413-050045-
Bering Sea Offshore 171W to 180 and South of 56N-
348 AM AKDT Thu Oct 4 2018

.TODAY...SW wind 15 to 30 kt. Seas 10 to 18 ft. Slight chance of
thunderstorms.
.TONIGHT...SW wind 10 to 25 kt. Seas 8 to 13 ft. Slight chance of
thunderstorms in the evening.
.FRI...S wind 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...S wind 10 to 20 kt. Seas 6 ft.
.SAT THROUGH MON...S wind 10 to 20 kt. Seas 4 to 8 ft.

$$

PKZ414-050045-
Bering Sea Offshore East of 171W-
348 AM AKDT Thu Oct 4 2018

...GALE WARNING TODAY...

.TODAY...SW wind 25 to 35 kt. Seas 15 to 23 ft. Slight chance of
thunderstorms.
.TONIGHT...S wind 15 to 25 kt. Seas 11 to 15 ft. 
.FRI...SE wind 20 kt becoming 10 to 25 kt in the afternoon. Seas
9 ft.
.FRI NIGHT...S wind 10 to 20 kt. Seas 5 to 8 ft.
.SAT THROUGH MON...SE wind 15 to 30 kt. Seas 4 to 7 ft.

$$

571 
FZAK62 PAFC 042348
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
348 PM AKDT Thu Oct 4 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.

PKZ499-051230-
348 PM AKDT Thu Oct 4 2018
.SYNOPSIS FOR CENTRAL BERING SEA...

A front over the eastern Bering associated with a 969 mb low in 
the northern Bering will weaken through Sat morning. A 973 mb low
at 57N 178E will move to 57N 176E at 985 mb Sat morning. The low
will then exit the Bering Sat afternoon.  

$$

PKZ411-051230-
Bering Sea Offshore West of 180 and East of the International
Dateline-
348 PM AKDT Thu Oct 4 2018

.TONIGHT...W wind 10 to 20 kt. Seas 6 to 9 ft.
.FRI...W wind 10 to 20 kt. Seas 5 to 9 ft.
.FRI NIGHT...E wind 10 to 15 kt. Seas 7 ft.
.SAT...E wind up to 15 kt. Seas 6 ft.
.SAT NIGHT...SE wind up to 15 kt. Seas 5 ft.
.SUN...SE wind up to 15 kt. Seas 3 to 6 ft.
.MON THROUGH TUE...NW wind up to 15 kt. Seas 4 ft.

$$

PKZ412-051230-
Bering Sea Offshore 171W to 180 and North of 56N-
348 PM AKDT Thu Oct 4 2018

.TONIGHT...S wind 10 to 25 kt. Seas 7 to 11 ft.
.FRI...SE wind 10 to 25 kt. Seas 6 to 10 ft.
.FRI NIGHT...SE wind 10 to 20 kt. Seas 7 ft.
.SAT...SE wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...S wind 15 kt. Seas 6 ft.
.SUN THROUGH MON...SE wind 10 to 20 kt. Seas 4 to 7 ft.
.TUE...S wind up to 15 kt. Seas 3 to 6 ft.

$$

PKZ413-051230-
Bering Sea Offshore 171W to 180 and South of 56N-
348 PM AKDT Thu Oct 4 2018

.TONIGHT...SW wind 10 to 25 kt. Seas 8 to 13 ft.
.FRI...S wind 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...S wind 10 to 20 kt. Seas 7 ft.
.SAT...S wind 10 to 20 kt. Seas 7 ft.
.SAT NIGHT...S wind 10 to 20 kt. Seas 6 ft.
.SUN THROUGH MON...S wind 10 to 25 kt. Seas 3 to 8 ft.
.TUE...W wind up to 15 kt. Seas 4 ft.

$$

PKZ414-051230-
Bering Sea Offshore East of 171W-
348 PM AKDT Thu Oct 4 2018

.TONIGHT...S wind 15 to 25 kt. Seas 11 to 15 ft.
.FRI...SE wind 20 kt becoming 15 to 25 kt in the afternoon. Seas 9 
ft.
.FRI NIGHT...S wind 10 to 20 kt. Seas 7 ft.
.SAT...S wind 15 kt. Seas 6 ft.
.SAT NIGHT...S wind 15 kt. Seas 5 ft.
.SUN THROUGH TUE...S wind 15 to 30 kt. Seas 3 to 7 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
440 PM AKDT Sat Sep 29 2018

.ANALYSIS AND UPPER LEVELS...
An upper level ridge remains over the state today, which brought
patchy fog and fair skies to Southcentral and stratus for the Gulf
throughout the day. An upper level stationary low is sitting over
the southcentral Bering. This low is responsible for bringing
light rain along its frontal boundary stretching across the
eastern Bering down below the eastern Aleutians. Gale force winds
have been experienced with this front, bringing gusts above 60 mph
for Cold Bay. Gusty conditions and the potential for rain showers
remain along the central and eastern Aleutians and Bering, as
well as the AKPEN as the front continues across the region. A
second batch of moisture sits below the central Aleutians
associated with a North Pacific low that is moving northward
throughout the afternoon, ready to bring another round of rain for
the central Aleutians and Bering.

&&

.MODEL DISCUSSION...
Models are in good agreement through the short term (days 1&2).
Differences creep in with the handling of the remnants of typhoon
Trami Monday and Tuesday as it moves into the Bering Sea. Main
differences are in low center position and location of wind
maxima. Will continue to lean toward the GFS which is a good
middle ground. All said, expect a broad area of storms with
potential for hurricane force with this system.

&&

.AVIATION...
PANC...VFR conditions and light winds will persist through this
evening. IFR ceiling and visibilities are possible Sunday morning,
but were left as VCFG for now.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)
Gorgeous weather is expected to continue across almost all of
Southcentral Alaska for the next couple days. A strong ridge
building over the area will peak in intensity on Sunday. With most
areas seeing a second day in a row of full sunshine again Sunday.
That should mean record high temperatures are once again a
distinct possibility to round out the final day of the warmest and
one of the driest Septembers on record at Anchorage.

The one caveat to seeing record highs as opposed to well above
normal highs on Sunday will be the possibility of fog along the
area waterways and sheltered valleys. Most areas are a few
degrees warmer this afternoon thanks to the full sunshine and a
couple degrees of dew point drier as well. This should mean
somewhat less fog around the area Sunday morning in terms of
coverage, but it will almost certainly be around and in many of
the same areas that had fog this morning. Be aware of that
possibility if out traveling in the morning. Fog is for sure the
one and perhaps only piece of the forecast where confidence is
low.

A front near Kodiak this afternoon is slowly drifting westward,
with clearing making steady progress westward across the Gulf. It
may take until the afternoon Sunday for the clouds to finally
clear out of Kodiak given the persistent onshore flow, but
clearing and sunshine are expected there as well. On Monday, a
reinforcing front moving eastward will allow the clouds and rain
to begin advancing back to the east, with Kodiak expected to cloud
back up in the morning and rain resumes there in the afternoon.
The front will only make very slow progress, with rain not making
it into the southern Kenai Peninsula until Tuesday. Much of the
area will see steadily increasing cloudcover through the day
Tuesday as a result with the exception of the Copper River Basin.
The increasing clouds and the weakening ridging aloft will make
for steadily cooling, but still above normal afternoon highs
through midweek.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3)...
Winds are the biggest challenge through Monday as the surface low
currently along the southeastern Bering is replaced by another
moving up on Sunday, keeping a tight baroclinic zone across the
Alaska Peninsula. Southeasterly flow will be gusty across Bristol
Bay and the Kuskokwim Delta with the highest speeds along the
coasts. Isolated to scattered showers are possible along the
coastal areas, however strong wind shear limits any cell
development. The highest rain chances are along the Alaska
Peninsula where a deformation zones remains in place through
Tuesday. Moderate to heavy rain can be expected along the
Peninsula as the next surface low moves across on Sunday through
early Monday. Rain is expected to spread inland across the
Southwest on Tuesday as a strong storm system pushes a front
across from the western Bering; however, strong southeasterly
flow and shear once again limits precipitation.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3)...
A challenging weather pattern is expected through Tuesday as two
significant storm systems track to the Bering. The first system
organizes tonight pushing a front to the central and eastern
Aleutians. This brings gusty southeasterly winds and rain late
tonight through early Monday, then diminishes as surface low
quickly fills. Gusty northerly flow increases behind the frontal
passage with a shortwave ridge separating this system from the
next. The second system will be a powerful organized system as a
subtropical storm taps into a cold air mass over the Kamchatka
Peninsula. This system should be monitored as models continue to
show stronger winds with each new model run.

&&

.LONG TERM FORECAST (Days 3 through 7)...
(Wednesday through Saturday)
A very unsettled pattern will persist for the remainder of next
week, as the remnants of the former Super Typhoon Trami, which is
currently near Japan, move northeast towards the western Bering
Sea, then turning eastward as it merges with a trough coming off
the Kamchatka Peninsula. The numerical models all agree in this
scenario, but they differ in speed and strength as the system
bumps into a persistent ridge stretching from the North Slope
through the Kenai Peninsula, and into the Gulf. Initially, the
models are in good agreement with the pattern aloft on Wednesday,
but they quickly begin to diverge some 24 hours later, as the GFS
looks to have a faster progression with the system as the ridge
slides off to the east while weakening. The Canadian global is
considerably weaker and faster with the system, and significantly
diverges from its counterparts (GFS/ECMWF). Thus, it'll be
discounted through the period. The GFS is typically too fast with
timing. That said, the differences are close enough to keep it in
the package, and we'll use a ECMWF/GFS/WPC (Weather Prediction
Center) blend.

So here's what we can look forward too. This storm will be
unusually strong for the Bering for this time of year, as it'll be
3 to 4 standard deviations above normal. Most of the region along
and north of the western Aleutians will see hi-end sustained
storm force winds with hurricane force gusts likely, and seas of
35 to 40 feet on Wednesday. An associated occluded front will
cross into southwestern parts of the state by evening, with
widespread rainfall accompanying it, with another low developing
near Kodiak. This rainfall will also spread northeast during the
evening and into Thursday for most of Southcentral and the
Kenai/Prince William Sound region.

Meanwhile, another north Pacific low will strengthen as it
crosses the central portions of the chain, lifting north towards
Saint Matthew Island on Friday, while sending another front
through the southwest with more rainfall developing. Similar to
its predecessor, another Kodiak low will form Friday evening,
reaching Prince William Sound late Saturday, spreading rainfall
across all of Southcentral and into the Copper River Basin.
However, it's important to note that as we approach next weekend,
model differences increase somewhat, which is typical for 5 to 7
days out. Added to the mix is that everything is dependent on if
the models handle the first extra-tropical system correctly, so
forecast changes are probable for the latter half of the week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale Warning 150 155 160 165 172 174 180 181 185.

&&

SYNOPSIS AND MODEL DISCUSSION...AH/RC
SOUTHCENTRAL ALASKA...JW
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...KH
LONG TERM...PD