Gale Warning 26, NWS Anchorage, AK

816 
FZAK62 PAFC 301252
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
352 AM AKST Wed Jan 30 2019

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.

PKZ499-310130-
352 AM AKST Wed Jan 30 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 mb low at 51N 177E moves to 54N 175W at 1000 mb dissipating
Tue afternoon. Its front swings into the Bering and decays through
Thu afternoon. A 962 mb low near 47N 170E Wed afternoon moves to
52N 176E at 946 mb for Mon morning then shifts to 53N 163W with
its front pushing into the Central Aleutians by Thu afternoon.

$$

PKZ411-310130-
Bering Sea Offshore West of 180 and East of the International
Dateline-
352 AM AKST Wed Jan 30 2019

...STORM WARNING TONIGHT AND THURSDAY...

.TODAY...E wind 15 to 30 kt. Seas 9 to 13 ft.
.TONIGHT...E wind 25 to 40 kt increasing to 40 to 55 kt after
midnight. Seas 11 to 19 ft.
.THU...E wind 40 to 55 kt becoming SE 30 to 45 kt in the
afternoon. Seas 17 to 27 ft. Rain.
.THU NIGHT...S wind 25 to 40 kt. Seas 14 to 22 ft.
.FRI...S wind 10 to 25 kt. Seas 12 to 20 ft.
.SAT THROUGH SUN...S wind 15 to 30 kt. Seas 13 to 21 ft.

$$

PKZ412-310130-
Bering Sea Offshore 171W to 180 and North of 56N-
352 AM AKST Wed Jan 30 2019

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...E wind 10 to 20 kt. Seas 6 to 11 ft.
.TONIGHT...E wind 10 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 5 to 10 ft.
.THU...E wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.THU NIGHT...SE wind 25 to 40 kt. Seas 12 to 19 ft.
.FRI...S wind 25 to 40 kt. Seas 14 to 22 ft.
.SAT...SW wind 25 to 40 kt. Seas 14 to 28 ft.
.SUN...S wind 15 to 25 kt. Seas 16 to 22 ft.

$$

PKZ413-310130-
Bering Sea Offshore 171W to 180 and South of 56N-
352 AM AKST Wed Jan 30 2019

...GALE WARNING TONIGHT AND THURSDAY...

.TODAY...SE wind 10 to 20 kt. Seas 6 to 10 ft.
.TONIGHT...SE wind 15 to 30 kt increasing to 30 to 45 kt after
midnight. Seas 7 to 12 ft.
.THU...SE wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.THU NIGHT...S wind 20 to 35 kt. Seas 12 to 16 ft.
.FRI THROUGH SAT...SW wind 25 to 40 kt. Seas 15 to 27 ft.
.SUN...S wind 10 to 25 kt. Seas 13 to 21 ft.

$$

PKZ414-310130-
Bering Sea Offshore East of 171W-
352 AM AKST Wed Jan 30 2019

...GALE WARNING THURSDAY...

.TODAY...E wind up to 15 kt. Seas 3 to 6 ft.
.TONIGHT...E wind 10 to 15 kt. Seas 4 ft.
.THU...SE wind 20 to 35 kt. Seas 4 to 9 ft. Freezing spray. Rain.
.THU NIGHT...SE wind 20 to 35 kt. Seas 7 to 12 ft.
.FRI THROUGH SUN...S wind 15 to 30 kt. Seas 9 to 17 ft.

$$

196 
FZAK62 PAFC 310035
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
335 PM AKST Wed Jan 30 2019

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.

PKZ499-311315-
335 PM AKST Wed Jan 30 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A 954 mb low at 49N 169E loops to 54N 167E at 946 mb Thu night and
continues to the Kamchatka Coast at 956 mb for Fri afternoon. Its
front sweeps the Aleutians and Alaska Peninsula by Fri afternoon.
A 969 mb North Pacific low moves to 51N 178E at 961 mb as its 
front pushes over the Aleutians through Fri afternoon.

$$

PKZ411-311315-
Bering Sea Offshore West of 180 and East of the International
Dateline-
335 PM AKST Wed Jan 30 2019

...STORM WARNING THROUGH THURSDAY...

.TONIGHT...E wind 25 to 40 kt increasing to 40 to 55 kt after
midnight. Seas 11 to 19 ft. Rain.
.THU...SE wind 35 to 50 kt. Seas 16 to 24 ft. Rain.
.THU NIGHT...S wind 20 to 35 kt. Seas 14 to 21 ft.
.FRI...S wind 10 to 25 kt. Seas 14 to 21 ft.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 14 to 22 ft.
.SAT THROUGH MON...S wind 20 to 35 kt. Seas 12 to 20 ft.

$$

PKZ412-311315-
Bering Sea Offshore 171W to 180 and North of 56N-
335 PM AKST Wed Jan 30 2019

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...E wind 10 to 25 kt increasing to 20 to 35 kt after 
midnight. Seas 5 to 10 ft.
.THU...SE wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.THU NIGHT...SE wind 25 to 40 kt becoming S 15 to 25 kt after
midnight. Seas 12 to 18 ft.
.FRI...S wind 15 to 25 kt. Seas 11 to 17 ft.
.FRI NIGHT...S wind 40 to 55 kt. Seas 15 to 30 ft.
.SAT...SW wind 35 to 50 kt. Seas 21 to 36 ft.
.SUN...S wind 15 to 25 kt. Seas 16 to 22 ft.
.MON...S wind up to 20 kt. Seas 10 to 14 ft.

$$

PKZ413-311315-
Bering Sea Offshore 171W to 180 and South of 56N-
335 PM AKST Wed Jan 30 2019

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SE wind 15 to 30 kt increasing to 30 to 45 kt after
midnight. Seas 7 to 12 ft. Rain.
.THU...SE wind 30 to 45 kt. Seas 9 to 17 ft. Rain.
.THU NIGHT...S wind 20 to 30 kt. Seas 11 to 15 ft.
.FRI...S wind 15 to 30 kt. Seas 11 to 19 ft.
.FRI NIGHT...S wind 40 to 55 kt. Seas 16 to 31 ft.
.SAT...SW wind 25 to 40 kt. Seas 17 to 31 ft.
.SUN THROUGH MON...SW wind 10 to 25 kt. Seas 13 to 21 ft.

$$

PKZ414-311315-
Bering Sea Offshore East of 171W-
335 PM AKST Wed Jan 30 2019

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

.TONIGHT...E wind up to 10 kt becoming SE after midnight. Seas 4
ft.
.THU...SE wind 20 to 35 kt. Seas 5 to 10 ft. Rain.
.THU NIGHT...SE wind 20 to 35 kt. Seas 8 to 13 ft. Rain and snow.
.FRI...S wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI NIGHT...S wind 25 to 40 kt. Seas 10 to 18 ft.
.SAT...SW wind 15 to 30 kt. Seas 13 to 21 ft.
.SUN THROUGH MON...SW wind 10 to 25 kt. Seas 9 to 14 ft.

$$

151 
FZAK62 PAFC 311246
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
346 AM AKST Thu Jan 31 2019

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.

PKZ499-010215-
346 AM AKST Thu Jan 31 2019
.SYNOPSIS FOR CENTRAL BERING SEA...
A front associated with a 950 mb low at 50N 169E Thu morning
continues to move east over the Alaska Peninsula by Fri morning. A
second front moves over the central Aleutians by Fri morning. The
associated 969 mb low moves to 52N 179E by Fri afternoon and then
moves to 58N 179W at 961 mb by Sat morning.

$$

PKZ411-010215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
346 AM AKST Thu Jan 31 2019

...STORM WARNING TODAY...

.TODAY...SE wind 35 to 50 kt. Seas 17 to 25 ft. Rain.
.TONIGHT...S wind 20 to 35 kt. Seas 14 to 21 ft.
.FRI...S wind 25 kt becoming SE 10 to 20 kt in the afternoon. 
Seas 14 to 21 ft.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 14 to 22 ft.
.SAT THROUGH SUN...S wind 20 to 35 kt. Seas 15 to 23 ft.
.MON...SW wind 10 to 20 kt. Seas 7 to 12 ft.

$$

PKZ412-010215-
Bering Sea Offshore 171W to 180 and North of 56N-
346 AM AKST Thu Jan 31 2019

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 30 to 45 kt. Seas 10 to 18 ft. Rain.
.TONIGHT...SE wind 25 to 40 kt becoming S 15 to 25 kt after
midnight. Seas 12 to 18 ft.
.FRI...S wind 15 to 30 kt. Seas 11 to 18 ft.
.FRI NIGHT...S wind 40 to 55 kt. Seas 15 to 30 ft.
.SAT...SW wind 35 to 50 kt. Seas 20 to 35 ft.
.SUN...S wind 15 to 30 kt. Seas 14 to 22 ft.
.MON...SW wind up to 20 kt. Seas 9 to 15 ft.

$$

PKZ413-010215-
Bering Sea Offshore 171W to 180 and South of 56N-
346 AM AKST Thu Jan 31 2019

...GALE WARNING TODAY AND FRIDAY...

.TODAY...SE wind 30 to 45 kt. Seas 10 to 18 ft. Rain.
.TONIGHT...S wind 20 to 30 kt. Seas 11 to 15 ft.
.FRI...S wind 20 to 35 kt. Seas 11 to 19 ft. Rain.
.FRI NIGHT...S wind 40 to 55 kt. Seas 16 to 31 ft.
.SAT...SW wind 25 to 40 kt. Seas 16 to 31 ft.
.SUN...S wind 15 to 30 kt. Seas 12 to 20 ft.
.MON...SW wind 20 kt. Seas 9 to 14 ft.

$$

PKZ414-010215-
Bering Sea Offshore East of 171W-
346 AM AKST Thu Jan 31 2019

...GALE WARNING THROUGH TONIGHT...

.TODAY...SE wind 20 to 35 kt. Seas 5 to 10 ft. Rain.
.TONIGHT...SE wind 20 to 35 kt. Seas 7 to 12 ft. Rain and snow.
.FRI...S wind 15 to 30 kt. Seas 7 to 12 ft.
.FRI NIGHT...S wind 25 to 40 kt. Seas 10 to 18 ft.
.SAT THROUGH MON...SW wind 15 to 30 kt. Seas 10 to 18 ft.

$$

866 
FZAK62 PAFC 010046
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
346 PM AKST Thu Jan 31 2019

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-
346 PM AKST Thu Jan 31 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A front associated with a 946mb low at 54N 166E moves eastward to
extend from St Matthew Island southeast across the Alaska 
Peninsula Thu night. A 970mb low forms moves north to 52N 179w 
Friday afternoon. This low moves to 61N 180 Saturday with a 
pressure of 965mb. A 970mb moves close to 55N 170E Saturday 
afternoon.

$$

PKZ411-011330-
Bering Sea Offshore West of 180 and East of the International
Dateline-
346 PM AKST Thu Jan 31 2019

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...S wind 20 to 30 kt. Seas 14 to 20 ft.
.FRI...S wind 25 kt diminishing to 10 to 20 kt in the afternoon.
Seas 14 to 20 ft.
.FRI NIGHT...E wind 20 to 35 kt becoming SW 25 to 40 kt after
midnight. Seas 13 to 20 ft. Rain and snow.
.SAT...S wind 20 to 35 kt. Seas 15 to 22 ft.
.SAT NIGHT...SW wind 20 to 35 kt. Seas 16 to 24 ft.
.SUN...S wind 15 to 30 kt. Seas 14 to 22 ft.
.MON...SW wind 10 to 20 kt. Seas 7 to 12 ft.
.TUE...SE wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ412-011330-
Bering Sea Offshore 171W to 180 and North of 56N-
346 PM AKST Thu Jan 31 2019

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

.TONIGHT...SE wind 20 to 35 kt becoming S 15 to 25 kt after
midnight. Seas 12 to 18 ft.
.FRI...S wind 15 to 30 kt. Seas 11 to 17 ft.
.FRI NIGHT...S wind 30 to 45 kt. Seas 14 to 27 ft. Rain and snow.
.SAT...S wind 30 to 45 kt. Seas 17 to 27 ft.
.SAT NIGHT...SW wind 25 to 40 kt. Seas 16 to 24 ft.
.SUN...S wind 15 to 30 kt. Seas 14 to 22 ft.
.MON...SW wind up to 20 kt. Seas 9 to 15 ft.
.TUE...S wind 15 to 25 kt. Seas 9 to 13 ft.

$$

PKZ413-011330-
Bering Sea Offshore 171W to 180 and South of 56N-
346 PM AKST Thu Jan 31 2019

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

.TONIGHT...S wind 30 kt. Seas 11 to 15 ft.
.FRI...S wind 20 to 35 kt. Seas 11 to 19 ft. Rain.
.FRI NIGHT...SW wind 30 to 45 kt. Seas 18 to 27 ft. Rain.
.SAT...SW wind 20 to 35 kt. Seas 14 to 22 ft.
.SAT NIGHT...SW wind 20 to 30 kt. Seas 13 to 21 ft.
.SUN...S wind 15 to 30 kt. Seas 12 to 20 ft.
.MON...SW wind 20 kt. Seas 9 to 14 ft.
.TUE...S wind 15 to 30 kt. Seas 9 to 16 ft.

$$

PKZ414-011330-
Bering Sea Offshore East of 171W-
346 PM AKST Thu Jan 31 2019

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

.TONIGHT...SE wind 20 to 35 kt. Seas 8 to 13 ft. Rain and snow.
.FRI...S wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI NIGHT...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain.
.SAT...S wind 15 to 30 kt. Seas 12 to 20 ft.
.SAT NIGHT...S wind 10 to 25 kt. Seas 10 to 18 ft.
.SUN THROUGH TUE...S wind 15 to 30 kt. Seas 9 to 17 ft.

$$

447 
FZAK62 PAFC 011247
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
347 AM AKST Fri Feb 1 2019

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.

PKZ499-020200-
347 AM AKST Fri Feb 1 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A strong front continues to extend from St Matthew Island 
southeastward across the central Aleutians and then Alaska 
Peninsula through Sat afternoon. A second front associated with a
949 mb low at 54N 163E moves across the western Aleutians and 
Bering by Fri morning. 

$$

PKZ411-020200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
347 AM AKST Fri Feb 1 2019

...GALE WARNING TONIGHT AND SATURDAY...

.TODAY...S wind 20 to 30 kt diminishing to 10 to 25 kt in the
afternoon. Seas 15 to 20 ft.
.TONIGHT...E wind 20 to 35 kt becoming SW after midnight. 
Seas 13 to 19 ft. Rain and snow.
.SAT...S wind 20 to 35 kt. Seas 14 to 21 ft.
.SAT NIGHT...S wind 25 to 35 kt. Seas 17 to 22 ft.
.SUN...S wind 20 to 35 kt. Seas 12 to 20 ft.
.MON...SW wind 15 kt. Seas 8 to 13 ft.
.TUE...SE wind 15 to 30 kt. Seas 8 to 16 ft.

$$

PKZ412-020200-
Bering Sea Offshore 171W to 180 and North of 56N-
347 AM AKST Fri Feb 1 2019

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 20 to 35 kt. Seas 11 to 17 ft.
.TONIGHT...S wind 30 to 45 kt. Seas 16 to 24 ft. Rain and snow.
.SAT...S wind 25 to 40 kt. Seas 17 to 24 ft.
.SAT NIGHT...S wind 20 to 30 kt. Seas 14 to 20 ft.
.SUN...S wind 15 to 30 kt. Seas 11 to 19 ft.
.MON...W wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE...S wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ413-020200-
Bering Sea Offshore 171W to 180 and South of 56N-
347 AM AKST Fri Feb 1 2019

...GALE WARNING THROUGH SATURDAY...

.TODAY...S wind 25 to 40 kt. Seas 12 to 18 ft. Rain.
.TONIGHT...SW wind 30 to 45 kt. Seas 15 to 25 ft.
.SAT...SW wind 20 to 35 kt. Seas 13 to 21 ft.
.SAT NIGHT...SW wind 20 to 30 kt. Seas 12 to 18 ft.
.SUN...S wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...W wind 10 to 25 kt. Seas 7 to 12 ft.
.TUE...S wind 20 to 35 kt. Seas 10 to 15 ft.

$$

PKZ414-020200-
Bering Sea Offshore East of 171W-
347 AM AKST Fri Feb 1 2019

...GALE WARNING TONIGHT...

.TODAY...SW wind 25 kt becoming S in the afternoon. 
Seas 9 to 14 ft.Rain.
.TONIGHT...S wind 30 to 45 kt. Seas 12 to 20 ft. Rain.
.SAT...SW wind 15 to 30 kt becoming S 10 to 20 kt in the
afternoon. Seas 13 to 21 ft. Rain.
.SAT NIGHT...S wind 10 to 25 kt. Seas 9 to 14 ft.
.SUN THROUGH TUE...S wind 15 to 30 kt. Seas 9 to 14 ft.

$$

626 
FZAK62 PAFC 020007
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
307 PM AKST Fri Feb 1 2019

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.

PKZ499-021515-
307 PM AKST Fri Feb 1 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A 970 mb low at 53N 180W will move to the northern Bering Sat 
morning. A front will move over the western Bering Sat morning
then remain nearly stationary through Sun afternoon. A 983 mb 
North Pacific low advances toward the western Aleutians Sun 
afternoon.

$$

PKZ411-021515-
Bering Sea Offshore West of 180 and East of the International
Dateline-
307 PM AKST Fri Feb 1 2019

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW wind 10 to 25 kt increasing to 20 to 35 kt after
midnight. Seas 13 to 17 ft.
.SAT...S wind 20 to 35 kt. Seas 15 to 18 ft.
.SAT NIGHT...S wind 25 to 35 kt. Seas 16 to 22 ft.
.SUN...S wind 20 to 35 kt. Seas 16 to 23 ft.
.SUN NIGHT...S wind 15 to 30 kt. Seas 11 to 19 ft.
.MON...NW wind up to 15 kt. Seas 8 to 13 ft.
.TUE...SE wind 15 to 30 kt. Seas 8 to 16 ft.
.WED...S wind 10 to 25 kt. Seas 16 to 21 ft.

$$

PKZ412-021515-
Bering Sea Offshore 171W to 180 and North of 56N-
307 PM AKST Fri Feb 1 2019

...STORM WARNING TONIGHT...

.TONIGHT...S wind 35 to 50 kt. Seas 16 to 24 ft. Rain.
.SAT...S wind 20 to 35 kt. Seas 15 to 21 ft.
.SAT NIGHT...SW wind 20 to 30 kt. Seas 14 to 19 ft.
.SUN...S wind 15 to 30 kt. Seas 13 to 18 ft.
.SUN NIGHT...SE wind 15 to 25 kt. Seas 12 to 18 ft.
.MON...NE wind 15 to 30 kt. Seas 10 to 15 ft.
.TUE...S wind 15 to 30 kt. Seas 9 to 14 ft.
.WED...S wind 25 kt. Seas 14 to 20 ft.

$$

PKZ413-021515-
Bering Sea Offshore 171W to 180 and South of 56N-
307 PM AKST Fri Feb 1 2019

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 35 to 50 kt diminishing to 20 to 35 kt after
midnight. Seas 16 to 24 ft. Rain.
.SAT...S wind 20 to 35 kt. Seas 12 to 18 ft.
.SAT NIGHT...SW wind 20 to 30 kt. Seas 12 to 17 ft.
.SUN...S wind 15 to 30 kt. Seas 11 to 17 ft.
.SUN NIGHT...SE wind 15 to 25 kt. Seas 9 to 15 ft.
.MON...N wind 15 to 30 kt. Seas 9 to 13 ft.
.TUE...S wind 20 to 35 kt. Seas 10 to 15 ft.
.WED...S wind 20 to 30 kt. Seas 14 to 22 ft.

$$

PKZ414-021515-
Bering Sea Offshore East of 171W-
307 PM AKST Fri Feb 1 2019

...GALE WARNING TONIGHT...

.TONIGHT...S wind 25 to 40 kt. Seas 11 to 19 ft. Rain.
.SAT...SW wind 15 to 30 kt. Seas 12 to 19 ft. Rain.
.SAT NIGHT...SW wind 10 to 25 kt. Seas 8 to 11 ft.
.SUN...S wind up to 20 kt. Seas 7 to 11 ft.
.SUN NIGHT...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.MON...SE wind 20 to 35 kt. Seas 8 to 13 ft.
.TUE THROUGH WED...S wind 20 to 30 kt. Seas 9 to 15 ft.

$$

297 
FZAK62 PAFC 021206
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
306 AM AKST Sat Feb 2 2019

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.

PKZ499-030200-
306 AM AKST Sat Feb 2 2019
.SYNOPSIS FOR CENTRAL BERING SEA...

A front will move over the western Bering Sat morning then remain
nearly stationary through Sun afternoon. A 986 mb North Pacific 
low moves to 52N 173W by Mon morning.

$$

PKZ411-030200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
306 AM AKST Sat Feb 2 2019

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...SW wind 20 to 30 kt. Seas 15 to 18 ft.
.TONIGHT...S wind 25 to 35 kt. Seas 16 to 19 ft.
.SUN...S wind 25 to 35 kt diminishing to 15 to 30 kt in the
afternoon. Seas 15 to 21 ft.
.SUN NIGHT...S wind 10 to 25 kt. Seas 11 to 18 ft.
.MON...N wind 10 to 25 kt. Seas 8 to 13 ft.
.TUE...SE wind 10 to 25 kt. Seas 8 to 13 ft.
.WED...SW wind 15 to 30 kt. Seas 12 to 18 ft.

$$

PKZ412-030200-
Bering Sea Offshore 171W to 180 and North of 56N-
306 AM AKST Sat Feb 2 2019

...GALE WARNING TODAY...

.TODAY...S wind 20 to 35 kt. Seas 16 to 25 ft.
.TONIGHT...SW wind 20 to 30 kt. Seas 16 to 19 ft.
.SUN...S wind 15 to 30 kt. Seas 12 to 17 ft.
.SUN NIGHT...SE wind 10 to 25 kt. Seas 11 to 16 ft.
.MON...E wind 20 to 35 kt. Seas 11 to 19 ft.
.TUE THROUGH WED...S wind 20 to 35 kt. Seas 10 to 18 ft.

$$

PKZ413-030200-
Bering Sea Offshore 171W to 180 and South of 56N-
306 AM AKST Sat Feb 2 2019

...GALE WARNING TODAY...

.TODAY...S wind 20 to 35 kt. Seas 13 to 20 ft.
.TONIGHT...SW wind 20 to 30 kt. Seas 12 to 17 ft.
.SUN...S wind 15 to 25 kt. Seas 9 to 16 ft.
.SUN NIGHT...SE wind 15 to 30 kt. Seas 9 to 13 ft.
.MON...W wind 25 to 40 kt. Seas 12 to 20 ft.
.TUE THROUGH WED...S wind 20 to 35 kt. Seas 11 to 19 ft.

$$

PKZ414-030200-
Bering Sea Offshore East of 171W-
306 AM AKST Sat Feb 2 2019

.TODAY...SW wind 15 to 30 kt becoming S up to 20 kt in the
afternoon. Seas 12 to 20 ft.
.TONIGHT...SW wind 10 to 25 kt. Seas 9 to 12 ft.
.SUN...S wind 10 to 20 kt. Seas 6 to 11 ft.
.SUN NIGHT...E wind 15 to 30 kt. Seas 6 to 11 ft.
.MON THROUGH WED...S wind 25 to 40 kt. Seas 12 to 20 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
501 PM AKST Tue Jan 29 2019

.ANALYSIS AND UPPER LEVELS...
There is a Rex block to the west of mainland Alaska, with the
high centered just to the west of the Bering Strait and the low
centered just south of the Rat Islands. There is a front in
between these features stretching from the eastern Aleutians and
western Alaska Peninsula westward across the southern Bering. A
trough extends from the low northeastward into Southwest Alaska.
This trough is producing some precipitation over much of
Southcentral, and over the lower Kuskokwim river and the Delta.
There is a mix of precipitation types from the Kenai Peninsula
through Cook Inlet into the Matanuska Valley and southern Susitna
Valley as low level temperatures are just on the line between
rain and snow. At the surface, there is a low centered just south
of the Kenai Peninsula, a low vertically stacked with the Rat
Island upper low, and a low forming south of the Alaska Peninsula
on the eastern end of the front. Surface high pressure is over the
northern Bering.

&&

.MODEL DISCUSSION...
The numerical models are in good agreement for the short-term
portion of the forecast (Thursday afternoon). The forecast is
still quite challenging. This is mainly a result of precipitation
type through tonight for many areas in Southcentral. The 850 mb
temperatures and 850mb-1000mb thicknesses are marginal for snow,
but slowly cooling through Wednesday morning.

&&

.AVIATION...
PANC...MVFR ceilings and visibilities are most likely through
Wednesday afternoon, with IFR conditions at times, especially
when the precipitation type is snow. Precipitation type is
expected to be a mix of rain and snow this evening, eventually
changing over to all snow overnight. Conditions will begin a
slow improvement Wednesday afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2: Tonight
through Thursday)...

A weak surface low currently sitting south of Seward continues to
spread precipitation across Southcentral this evening. A mix of
rain and snow are currently being reported across Anchorage, the
Kenai Peninsula and the mix likely continues into the southern
Susitna Valley. A "back edge" to the precipitation has moved north
of the Sterling Highway and continues to press northward. Any
stoppage in the precipitation will be short-lived as a series of
upper level waves move northward, which will enhance the lift and
any precipitation later this evening. With the loss of diurnal
heating and temperatures currently hover a degree or two above
freezing in most areas, that should be enough to allow some
cooling back to 30 or 31 degrees and switch any rain back over to
snow sometime this evening. Since the forcing with these waves
will otherwise be pretty weak, most areas of Southcentral should
hold additional snow accumulations tonight into Wednesday in the
1 to 3 inch range. The snow will slowly diminish through the day
Wednesday as temperatures once again get a degree or two above
freezing.

On Wednesday night a strong upper level shortwave associated with
the western edge of an Arctic air mass will dig southward along
the Alaska/Yukon border. This will allow a much colder air mass to
quickly advect southward into Southcentral. First to be hit will
be the Copper River Basin Wednesday night. While current indications
are that the core of the coldest air remains well east of the
area over the Yukon, the cold air will eventually drop into
Southcentral and return the area to seasonably cold conditions for
the start of February on Friday.

The more significant hazard associated with this feature will be
strong, gusty winds expected to impact most of the gaps through
Southcentral. The strongest winds are likely to be through
Thompson Pass and the Copper River Delta Thursday afternoon into
Friday. However, the Matanuska Valley wind, Broad Pass, and the
Seward area are all expected to be gusty from Thursday into
Friday. There remains a fair bit of uncertainty with this
however, which is essentially due to the models trending eastward
with the upper level wave. The further east it goes, the lesser
the impact to Southcentral.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Areas of snow continue in the lower Kuskokwim Valley/Delta under
a weak deformation zone associated with a trough over the Bering.
As that feature lifts north tonight, expect patchy fog to develop
in the Kuskokwim Delta...though low level clouds could preclude
fog development. Lingering low level moisture in the Bristol Bay
area from showers earlier today has resulted in patchy fog, which
will probably persist at least into mid-morning Wednesday. A low
south of the AKPEN will shift northeastward tonight, and warm air
advection ahead of the low will bring snow to the southern Alaska
Range tonight through Wednesday. Conditions will trend colder and
drier with offshore flow Wednesday into Thursday as an Arctic high
sets up over northeast Alaska and the Yukon.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
A vertically stacked low roughly 100 miles south of Attu is
gradually lifting northward and weakening. Winds in the periphery
have dropped to below gale force per recent ASCAT pass, other than
a swath of gales south of 50N. Winds will mostly diminish to sub
advisory level through Wednesday morning for the Bering, Aleutians,
Pribilofs and AKPEN. An occluded front wrapping around the low
will bring precip to the western, then central Aleutians into
tomorrow, then the area will trend drier until the next system
approaches. That next system is a low currently roughly 1000 miles
southwest of Attu and will shift northward into Thursday bringing
storm force winds to the western and central Aleutians and gales
to much of the Bering late Wednesday into Thursday.

&&

.MARINE (Days 3 through 5)...

The operational models all ping into back to back cyclones
developing south of the Aleutians, jumping the chain and then
bringing unsettled weather into the Bering. There are some minor
timing issues but any way you slice it, very confident that the
active weather pattern will continue for the western/central
Aleutians and Bering from Thursday through Sunday. Confidence is
high for a minimum of gale force winds, rough seas and more
precipitation with both storms. The surface low anchoring the
first front will be just south of Attu Island 12z Thursday. The
second surface low will be west-southwest of Adak 00z Saturday and
this low will rapidly accelerate north being west of the Pribilof
Islands by 12z Saturday.

&&

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

The longwave pattern features a ridge from the Hawaiian Islands
extending into Southcentral Alaska with the longwave trough over
Central Siberia, Kamchatka and the Aleutians which is an atypical
orientation for a trough axis. There is a secondary dome of high
pressure aloft north of the Bering which is keeping things
interesting in the Aleutians/Bering. As time elapses, the dome of
high pressure to the north moves to the west and the upper level
ridge remains steadfast from the Gulf Of Alaska and into the
interior of Alaska. All the while, to the east of the ridge, an
arctic trough pushing south through the Yukon Territory will
advect a brutally cold airmass into eastern Alaska Wednesday
and Thursday. With a tight pressure gradient in place and the
placement of the ridge axis expect a surge of strong northerly
winds to Southcentral Alaska in many locations. Offshore flow is
expected from Seward to Cordova. The communities of Palmer and
Wasilla can expect the "Matanuska Wind" on Friday and possibly
Saturday. By Sunday, the ridge axis moves eastward enough to
change the wind pattern. For the remainder of the forecast period,
this ridge is going to have some impact over the eastern half of
the state of Alaska.

Out to the west, there will be a series of storms. That longwave
trough axis is going to spin up storm after storm. This pattern
doesn't show any chance of changing for the Bering/Aleutians
through Day 7 and arguably through Day 10.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Storm Warning 175 176 177 178.
	     Gale Warning 173 174.
         Heavy Freezing Spray Warning 185.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...BL
SOUTHCENTRAL ALASKA...JW
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MM
MARINE/LONG TERM...PS