Alert archive / Alaska / Gale Warnings in 2017

Gale Warning 583, NWS Anchorage, AK

November 22, 2017

NWS Anchorage, AK issued this gale warning at Nov 22, 2017, 4:01 AM AKST. It was in force for 59 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 22, 2017, 4:01 AM AKST (13:01 UTC)
Expired
Nov 24, 2017, 3:26 PM AKST
In force
59 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

503 
FZAK62 PAFC 221301
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
401 AM AKST Wed Nov 22 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-230215-
401 AM AKST Wed Nov 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 983 mb low at 58N 180E moves to 60N 164W at 968 mb Thu morning then
shifts south and moves to 55N 147W at 978 mb. The associated 
front pushes across the Bering and over the Alaska Peninsula by 
Thu afternoon.

$$

PKZ411-230215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
401 AM AKST Wed Nov 22 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 30 to 45 kt. Seas 14 to 22 ft.
.TONIGHT...NW wind 30 to 45 kt becoming W 20 to 35 kt after
midnight. Seas 13 to 21 ft.
.THU...SW wind 15 to 30 kt. Seas 9 to 15 ft.
.THU NIGHT...S wind 20 to 30 kt. Seas 8 to 12 ft.
.FRI THROUGH SAT...W wind 25 to 40 kt. Seas 10 to 18 ft.
.SUN...S wind 10 to 25 kt. Seas 9 to 14 ft.

$$

PKZ412-230215-
Bering Sea Offshore 171W to 180 and North of 56N-
401 AM AKST Wed Nov 22 2017

...STORM WARNING THROUGH THURSDAY...

.TODAY...W wind 35 to 50 kt. Gusts to 65 kt. Seas 14 to 21 ft 
building to 20 to 27 ft in the afternoon. Snow showers.
.TONIGHT...NW wind 40 to 55 kt. Gusts to 70 kt. Seas 23 to 34 ft. 
Snow showers.
.THU...NW wind 35 to 50 kt becoming W 25 to 35 kt in the
afternoon. Gusts to 65 kt in the morning. Seas 16 to 31 ft.
.THU NIGHT...W wind 20 to 30 kt. Seas 11 to 18 ft.
.FRI...SW wind 20 to 35 kt. Seas 8 to 13 ft.
.SAT...W wind 15 to 30 kt. Seas 9 to 15 ft.
.SUN...NE wind up to 15 kt. Seas 6 to 11 ft.

$$

PKZ413-230215-
Bering Sea Offshore 171W to 180 and South of 56N-
401 AM AKST Wed Nov 22 2017

...STORM WARNING TONIGHT...

.TODAY...W wind 35 to 45 kt. Seas 16 to 23 ft.
.TONIGHT...NW wind 35 to 50 kt. Gusts to 65 kt. Seas 18 to 29 ft. 
Snow showers.
.THU...NW wind 30 to 45 kt becoming W 15 to 30 kt in the
afternoon. Seas 15 to 30 ft.
.THU NIGHT...W wind 15 to 30 kt. Seas 9 to 17 ft.
.FRI...S wind 25 to 40 kt. Seas 8 to 13 ft.
.SAT...W wind 20 to 35 kt. Seas 7 to 12 ft.
.SUN...N wind up to 20 kt. Seas 5 to 10 ft.

$$

PKZ414-230215-
Bering Sea Offshore East of 171W-
401 AM AKST Wed Nov 22 2017

...STORM WARNING TONIGHT AND THURSDAY...

.TODAY...SW wind 30 to 45 kt. Seas 13 to 21 ft. Rain.
.TONIGHT...W wind 45 to 60 kt. Gusts to 75 kt. Seas 20 to 34 ft. 
Rain showers and snow showers.
.THU...NW wind 45 to 60 kt. Seas 21 to 36 ft. Rain showers.
.THU NIGHT...NW wind 30 to 45 kt. Seas 15 to 23 ft.
.FRI...W wind 15 to 30 kt. Seas 7 to 12 ft.
.SAT...S wind 15 to 30 kt. Seas 7 to 12 ft.
.SUN...N wind 15 kt. Seas 9 to 15 ft.

$$
5 follow-up statements
091 
FZAK62 PAFC 230023
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
323 PM AKST Wed Nov 22 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-231345-
323 PM AKST Wed Nov 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 969 mb low at 61N 171W dives to 52N 151W at 983 mb Thu night 
then merges with a 978 mb low in the Southern Gulf of Alaska for 
Fri afternoon. The associated front pushes across the Alaska 
Peninsula through Fri afternoon. A new front edges over the 
Western Aleutians by Fri afternoon. 

$$

PKZ411-231345-
Bering Sea Offshore West of 180 and East of the International
Dateline-
323 PM AKST Wed Nov 22 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 30 to 45 kt becoming W 20 to 35 kt after
midnight. Seas 13 to 21 ft.
.THU...SW wind 15 to 30 kt. Seas 9 to 15 ft.
.THU NIGHT...S wind 20 to 30 kt. Seas 8 to 12 ft.
.FRI...S wind 25 to 40 kt. Seas 10 to 15 ft.
.FRI NIGHT...W wind 20 to 35 kt. Seas 9 to 15 ft.
.SAT THROUGH SUN...NW wind 20 to 35 kt. Seas 9 to 14 ft.
.MON...E wind 20 to 35 kt. Seas 11 to 19 ft.

$$

PKZ412-231345-
Bering Sea Offshore 171W to 180 and North of 56N-
323 PM AKST Wed Nov 22 2017

...STORM WARNING THROUGH THURSDAY...

.TONIGHT...NW wind 40 to 55 kt. Seas 23 to 34 ft. Snow showers.
.THU...NW wind 35 to 50 kt becoming W 25 to 35 kt in the
afternoon. Seas 17 to 32 ft subsiding to 14 to 22 ft in the 
afternoon.
.THU NIGHT...W wind 20 to 30 kt. Seas 11 to 17 ft.
.FRI...SW wind 20 to 35 kt. Seas 11 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 9 to 12 ft.
.SAT THROUGH SUN...N wind 25 to 40 kt. Seas 9 to 14 ft.
.MON...E wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ413-231345-
Bering Sea Offshore 171W to 180 and South of 56N-
323 PM AKST Wed Nov 22 2017

...STORM WARNING TONIGHT...

.TONIGHT...NW wind 35 to 50 kt. Seas 17 to 29 ft. Snow showers.
.THU...NW wind 30 to 45 kt becoming W 15 to 30 kt in the
afternoon. Seas 14 to 29 ft.
.THU NIGHT...W wind 15 to 30 kt becoming SW after midnight. Seas
9 to 17 ft.
.FRI...S wind 25 to 40 kt. Seas 8 to 12 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 8 to 13 ft.
.SAT...NW wind 20 to 35 kt. Seas 6 to 11 ft.
.SUN...NW wind 25 to 40 kt. Seas 12 to 19 ft.
.MON...S wind 20 to 35 kt. Seas 10 to 18 ft.

$$

PKZ414-231345-
Bering Sea Offshore East of 171W-
323 PM AKST Wed Nov 22 2017

...STORM WARNING THROUGH THURSDAY...

.TONIGHT...W wind 45 to 60 kt. Seas 20 to 35 ft. Rain showers and
snow showers.
.THU...NW wind 45 to 60 kt. Seas 22 to 37 ft.  and rain showers.
.THU NIGHT...NW wind 30 to 45 kt diminishing to 20 to 30 kt after
midnight. Seas 14 to 22 ft.
.FRI...NW wind 15 to 30 kt. Seas 9 to 13 ft.
.FRI NIGHT...SW wind 15 to 30 kt. Seas 6 to 11 ft.
.SAT...SE wind 15 to 30 kt. Seas 6 to 11 ft.
.SUN...S wind 20 to 35 kt. Seas 12 to 19 ft.
.MON...NW wind 20 to 35 kt. Seas 9 to 17 ft.

$$
474 
FZAK62 PAFC 231243
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
343 AM AKST Thu Nov 23 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-240200-
343 AM AKST Thu Nov 23 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 969 mb low at 60N 162W will move to 57N 158W at 979 mb by this
afternoon, then it will move into the western Gulf at 984 mb this 
evening. A front pushing into the western Aleutians Fri morning 
will continue east to arrive in the eastern Aleutians by Sat 
morning.

$$

PKZ411-240200-
Bering Sea Offshore West of 180 and East of the International
Dateline-
343 AM AKST Thu Nov 23 2017

...GALE WARNING FRIDAY...

.TODAY...SW wind 15 to 25 kt. Seas 9 to 15 ft.
.TONIGHT...S wind 20 to 30 kt. Seas 8 to 12 ft.
.FRI...S wind 25 to 35 kt. Seas 10 to 14 ft. Rain.
.FRI NIGHT...W wind 15 to 30 kt. Seas 9 to 14 ft.
.SAT THROUGH SUN...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...NE wind up to 20 kt. Seas 8 to 16 ft.

$$

PKZ412-240200-
Bering Sea Offshore 171W to 180 and North of 56N-
343 AM AKST Thu Nov 23 2017

...STORM WARNING TODAY...

.TODAY...NW wind 35 to 50 kt becoming W 25 to 35 kt in the
afternoon. Seas 15 to 30 ft.
.TONIGHT...W wind 25 kt. Seas 9 to 17 ft.
.FRI...SW wind 25 kt becoming 15 to 30 kt in the afternoon. 
Seas 10 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 9 to 13 ft.
.SAT THROUGH SUN...N wind 25 to 40 kt. Seas 10 to 18 ft.
.MON...N wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ413-240200-
Bering Sea Offshore 171W to 180 and South of 56N-
343 AM AKST Thu Nov 23 2017

...GALE WARNING TODAY AND FRIDAY...

.TODAY...NW wind 30 to 45 kt becoming W 15 to 30 kt in the
afternoon. Seas 14 to 29 ft.
.TONIGHT...SW wind 15 to 25 kt. Seas 10 to 18 ft subsiding to 7 to
12 ft after midnight.
.FRI...SW wind 15 to 25 kt becoming S 20 to 35 kt in the
afternoon. Seas 7 to 11 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 8 to 13 ft.
.SAT THROUGH SUN...NW wind 30 to 45 kt. Seas 13 to 21 ft.
.MON...N wind 10 to 25 kt. Seas 8 to 13 ft.

$$

PKZ414-240200-
Bering Sea Offshore East of 171W-
343 AM AKST Thu Nov 23 2017

...STORM WARNING TODAY...

.TODAY...NW wind 45 to 55 kt diminishing to 35 to 50 kt in the
afternoon. Gusts to 75 kt through this morning. Seas 21 to 36 ft.
.TONIGHT...NW wind 25 to 40 kt. Seas 14 to 22 ft.
.FRI...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI NIGHT...S wind 15 to 30 kt. Seas 6 to 10 ft.
.SAT...SE wind 20 to 35 kt. Seas 8 to 13 ft.
.SUN...NE wind 20 to 35 kt. Seas 9 to 17 ft.
.MON...NW wind 15 to 30 kt. Seas 9 to 14 ft.

$$
187 
FZAK62 PAFC 240034
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
334 PM AKST Thu Nov 23 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-241400-
334 PM AKST Thu Nov 23 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

A 986 mb low at 55N 157W swings across the Northern Pacific 
through Sat afternoon. High pressure moves to the Eastern Bering 
by Sat morning. A 977 mb Russian Far East low extends a front 
over the Bering to a 984 mb low near 56N 171W and a 987 mb low 
around 50N 178W that form Sat afternoon.

$$

PKZ411-241400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
334 PM AKST Thu Nov 23 2017

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

.TONIGHT...S wind 20 to 30 kt. Seas 8 to 12 ft.
.FRI...S wind 35 kt. Seas 9 to 15 ft. Rain.
.FRI NIGHT...W wind 20 to 35 kt. Seas 10 to 17 ft. Rain.
.SAT...W wind 10 to 25 kt. Seas 8 to 13 ft.
.SAT NIGHT...NW wind 10 to 25 kt. Seas 8 ft.
.SUN...NW wind 15 to 30 kt. Seas 8 to 13 ft.
.MON...NE wind up to 20 kt. Seas 8 to 16 ft.
.TUE...NW wind 15 to 25 kt. Seas 13 to 21 ft.

$$

PKZ412-241400-
Bering Sea Offshore 171W to 180 and North of 56N-
334 PM AKST Thu Nov 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...W wind 25 kt. Seas 10 to 17 ft subsiding to 11 ft after
midnight.
.FRI...SW wind 25 kt becoming 15 to 30 kt in the afternoon. Seas
8 to 11 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 9 to 14 ft. Rain.
.SAT...NW wind 15 to 30 kt. Seas 9 to 15 ft.
.SAT NIGHT...N wind 30 to 45 kt. Seas 10 to 18 ft.
.SUN...N wind 25 to 40 kt. Seas 13 to 21 ft.
.MON THROUGH TUE...N wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ413-241400-
Bering Sea Offshore 171W to 180 and South of 56N-
334 PM AKST Thu Nov 23 2017

...GALE WARNING FRIDAY NIGHT...

.TONIGHT...SW wind 15 to 25 kt. Seas 10 to 18 ft subsiding to 8 to
12 ft after midnight.
.FRI...S wind 15 to 30 kt. Seas 7 to 10 ft.
.FRI NIGHT...S wind 20 to 35 kt. Seas 8 to 13 ft. Rain.
.SAT...N wind 15 to 30 kt. Seas 7 to 12 ft.
.SAT NIGHT...NW wind 30 to 45 kt. Seas 10 to 18 ft.
.SUN...NW wind 30 to 45 kt. Seas 14 to 28 ft.
.MON THROUGH TUE...N wind 10 to 25 kt. Seas 9 to 17 ft.

$$

PKZ414-241400-
Bering Sea Offshore East of 171W-
334 PM AKST Thu Nov 23 2017

...GALE WARNING TONIGHT...

.TONIGHT...NW wind 25 to 40 kt. Seas 13 to 21 ft.
.FRI...W wind 15 to 30 kt. Seas 8 to 13 ft.
.FRI NIGHT...W wind up to 20 kt becoming SE 15 to 30 kt after
midnight. Seas 7 to 10 ft.
.SAT...SE wind 15 to 30 kt. Seas 6 to 10 ft.
.SAT NIGHT...SE wind 25 to 40 kt. Seas 9 to 17 ft.
.SUN...NE wind 25 to 40 kt. Seas 11 to 19 ft.
.MON...NW wind 15 to 30 kt. Seas 9 to 14 ft.
.TUE...NE wind up to 15 kt. Seas 4 to 8 ft.

$$
505 
FZAK62 PAFC 241235
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
335 AM AKST Fri Nov 24 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-250215-
335 AM AKST Fri Nov 24 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
High pressure over the central Aleutians moves southeast as a 
front approaches the western Bering Sea Sat morning. A 991 mb 
North Pacific low moves to 49N 172E by Sat morning then moves to 
56N 171W intensifying to 946 mb by Sun morning.

$$

PKZ411-250215-
Bering Sea Offshore West of 180 and East of the International
Dateline-
335 AM AKST Fri Nov 24 2017

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 35 kt. Seas 9 to 15 ft. Rain.
.TONIGHT...SW wind 20 to 35 kt becoming W 10 to 25 kt after
midnight. Seas 10 to 16 ft.
.SAT...NW wind 10 to 20 kt becoming N 15 to 30 kt in the
afternoon. Seas 8 to 13 ft.
.SAT NIGHT...NW wind 20 to 35 kt. Seas 9 to 14 ft.
.SUN THROUGH TUE...NW wind 15 to 30 kt. Seas 10 to 18 ft.

$$

PKZ412-250215-
Bering Sea Offshore 171W to 180 and North of 56N-
335 AM AKST Fri Nov 24 2017

...GALE WARNING TONIGHT...

.TODAY...SW wind 15 to 30 kt. Seas 8 to 11 ft.
.TONIGHT...S wind 20 to 35 kt. Seas 9 to 14 ft. Rain showers.
.SAT...N wind 15 to 30 kt. Seas 9 to 14 ft.
.SAT NIGHT...N wind 30 to 45 kt. Seas 11 to 19 ft.
.SUN...N wind 30 to 45 kt. Seas 15 to 23 ft.
.MON THROUGH TUE...N wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ413-250215-
Bering Sea Offshore 171W to 180 and South of 56N-
335 AM AKST Fri Nov 24 2017

...GALE WARNING TONIGHT...

.TODAY...S wind 15 to 30 kt. Seas 7 to 10 ft.
.TONIGHT...S wind 20 to 35 kt. Seas 8 to 13 ft. Rain showers.
.SAT...NW wind up to 20 kt becoming N 15 to 30 kt in the
afternoon. Seas 6 to 11 ft. Rain showers.
.SAT NIGHT...NW wind 30 to 45 kt. Seas 11 to 19 ft.
.SUN...NW wind 35 to 50 kt. Seas 19 to 34 ft.
.MON THROUGH TUE...NW wind 25 to 40 kt. Seas 11 to 19 ft.

$$

PKZ414-250215-
Bering Sea Offshore East of 171W-
335 AM AKST Fri Nov 24 2017

.TODAY...W wind 15 to 30 kt. Seas 8 to 11 ft.
.TONIGHT...W wind 10 to 25 kt becoming S 15 to 30 kt after
midnight. Seas 6 to 10 ft.
.SAT...SE wind 15 to 30 kt. Seas 7 to 12 ft. Rain.
.SAT NIGHT...SE wind 30 to 45 kt. Seas 10 to 18 ft.
.SUN...N wind 20 to 35 kt. Seas 14 to 22 ft.
.MON...NW wind 20 to 35 kt. Seas 9 to 17 ft.
.TUE...NE wind 10 to 25 kt. Seas 6 to 10 ft.

$$
676 
FZAK62 PAFC 250026
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
326 PM AKST Fri Nov 24 2017

Offshore Waters Forecast for the Bering Sea

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent an average of the highest
one-third of the combined wind wave and swell height.

PKZ499-251400-
326 PM AKST Fri Nov 24 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 mb Russian Far East low extends a front over the Bering 
through Sat morning. The low moves into the Arctic with the 
trailing front pushing across the Bering for Sun afternoon. A 
North Pacific low slips along the front to 58N 169W and 
intensifies to 944 mb by Sun afternoon.

$$

PKZ411-251400-
Bering Sea Offshore West of 180 and East of the International
Dateline-
326 PM AKST Fri Nov 24 2017

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 20 to 35 kt becoming NW 10 to 20 kt after
midnight. Seas 9 to 17 ft.
.SAT...N wind 10 to 25 kt increasing to 30 to 45 kt in the 
afternoon. Seas 8 to 13 ft. and rain.
.SAT NIGHT...NW wind 40 to 55 kt. Seas 13 to 21 ft.
.SUN...NW wind 35 to 50 kt. Seas 13 to 27 ft.
.SUN NIGHT...NW wind 25 to 40 kt. Seas 15 to 26 ft.
.MON THROUGH TUE...NW wind 25 to 40 kt. Seas 14 to 20 ft.
.WED...SW wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ412-251400-
Bering Sea Offshore 171W to 180 and North of 56N-
326 PM AKST Fri Nov 24 2017

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...S wind 15 to 30 kt. Seas 9 to 14 ft. Rain.
.SAT...E wind 10 to 25 kt. Seas 8 to 12 ft. Rain.
.SAT NIGHT...E wind 20 to 35 kt becoming N 35 to 50 kt after
midnight. Seas 10 to 18 ft. Rain.
.SUN...N wind 40 to 55 kt. Seas 14 to 29 ft.
.SUN NIGHT...NW wind 30 to 45 kt. Seas 16 to 28 ft.
.MON THROUGH WED...W wind 25 to 40 kt. Seas 13 to 21 ft.

$$

PKZ413-251400-
Bering Sea Offshore 171W to 180 and South of 56N-
326 PM AKST Fri Nov 24 2017

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...S wind 20 to 35 kt. Seas 7 to 12 ft. Rain.
.SAT...SE wind 10 to 25 kt. Seas 5 to 10 ft. Rain.
.SAT NIGHT...W wind 45 to 60 kt. Seas 9 to 14 ft building to 16 to
31 ft after midnight. Rain and snow showers.
.SUN...W wind 50 to 65 kt. Seas 27 to 42 ft.
.SUN NIGHT...W wind 45 to 60 kt. Seas 26 to 41 ft.
.MON THROUGH TUE...W wind 35 to 50 kt. Seas 16 to 30 ft.
.WED...W wind 20 to 35 kt. Seas 14 to 22 ft.

$$

PKZ414-251400-
Bering Sea Offshore East of 171W-
326 PM AKST Fri Nov 24 2017

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...SW wind 15 to 30 kt. Seas 6 to 10 ft.
.SAT...SE wind 20 to 35 kt. Seas 7 to 12 ft. Rain and snow.
.SAT NIGHT...SE wind 35 to 50 kt. Seas 11 to 19 ft. Rain and snow.
.SUN...S wind 35 to 50 kt. Seas 20 to 35 ft.
.SUN NIGHT...SW wind 40 to 55 kt. Seas 20 to 35 ft.
.MON...W wind 35 to 50 kt. Seas 15 to 30 ft.
.TUE THROUGH WED...W wind 20 to 35 kt. Seas 13 to 21 ft.

$$

What forecasters said that day

The local office's own words before this gale warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this gale warning went out at Nov 21, 4:42 PM AKST, 11 hours 19 minutes earlier.

Area forecast discussion, Nov 21, 4:42 PM AKST, 11 hours 19 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
442 PM AKST Tue Nov 21 2017

.ANALYSIS AND UPPER LEVELS...
Early this afternoon a weak front stretches along a line from
just south of Talkeetna to the southern tip of the western Kenai.
The upper trough driving this feature is swinging eastward from a
parent low over the Chukchi Sea. An upper shortwave ridge is to
the east of the trough with nearly zonal flow to its west over the
Bering. The next impactful low to monitor is quickly approaching
the western Aleutians from the North Pacific.

&&

.MODEL DISCUSSION...
Models are generally in good agreement on the synoptic pattern
through the short range forecast into early Thursday evening. Good
model consistency is noted along the last several runs, therefore
only minor updates were needed for the afternoon package.

&&

.AVIATION...
PANC...VFR conditions are expected through the TAF package,
however there is a chance for brief MVFR to develop along a weak
front projected to move across the Anchorage Bowl this evening.
Winds will generally be a light northerly flow through Wednesday
afternoon.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
A weak shortwave trough will continue pushing east across
Southcentral this evening bringing a quick shot of snow to most
locations on the west side of the Chugach and Kenai Mountains,
though no more than an inch of accumulation is expected. The
trough weakened considerably as it came over the Alaska Range
today and will fall apart even more as it moves over higher
terrain to the east, meaning areas along the Prince William Sound
and Gulf Coast should see little if any snow from this system.
High pressure will build in again behind the departing trough
tonight and tomorrow bringing another shot of cold air advection
and strengthening northerly gap winds. The orientation of the
upper level flow and pressure gradient will favor areas along the
coast including Valdez/Thompson Pass, Whittier, and Seward, where
winds could gust as high as 35-50 mph peaking tomorrow afternoon.

The flow will rapidly shift tomorrow evening as another low over
the western part of the state moves in. A front extending from the Eastern
Bering across the AKPEN will sweep NE over Kodiak and the
Southern Kenai bringing another round of rain and snow to those
areas. High pressure over NW Canada will block the low from moving
further north and push the center to the south and east over the
Gulf, keeping the area mostly dry through the rest of the week.

&&

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

The forecast period commences with a polar low over the Chukchi
Sea with the remnants of the frontal boundary moving into western
Alaska. In the wake of the frontal passage, ridging will build
into southwest Alaska tonight resulting in a lull between
cyclones. Wednesday a mature low will have emerged into the
central Bering and the models have converged on a solution that
bring this storm to southwest Alaska late this forecast period.
Early Thursday the surface low will begin to dive southeastward
from Nunivak Island to Bristol Bay. Widespread precipitation and
coastal impacts anticipated with this storm.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...

The progressive pattern for the Bering and Aleutians continues.
A low that is currently south of Attu Island is progged to
rapidly deepen and push north and east. This storm is projected to
evolve into a significant storm that will harness a widespread
area of cold air advection. The attendant cold front will migrate
eastward impacting the Aleutian Chain and the Central Bering. The
operational runs of the GFS and the NAM have the surface low
deepening more than 20 mb in 24 hrs. Anticipate strong winds,
rough seas and wintry precipitation. Early Thursday, the surface
low will begin to dive southeastward from Nunivak Island to
Bristol Bay.

&&

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

The forecast heading into the weekend will see the exit of a
strong low into the Gulf of Alaska and eventually the PAC NW of
the lower 48. Friday, winds along the AKPEN should begin to abate
and the concerns for gusts reaching warning level will wane. This
weekend will see a transient Bering Sea ridge build north of the
central Aleutian chain and slowly slide to the east. Low pressure
lifting from the western Pacific will drag a front across the
Bering and merge with a different area of low pressure Sunday.
This will reintroduce precipitation across much of the southwest.
However, with strong southerly wind transporting warmth aloft,
problems with precipitation type arise during this timeframe. The
Friday and through the weekend forecast for southcentral remains
pretty basic. Offshore flow will dominate the entire period and
skies should become relatively cloud free. Temperatures will
slowly drop this weekend with the clearing skies and limited wind
overnight. Chances for snow are bleak through at least Monday.
Guidance takes a turn come next week and becomes challenging. The
long range forecast trended to more of an ensemble weighting as
the standard suite of deterministic models provided a wide range
of forecast possibilities.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...CFW and WSW 155 and 161, NPW 181 and 195.
MARINE...Storms 165 170 179 180 181 185 411-414. Gales 120 130-132
138 150 155 160 172-178.

&&

SYNOPSIS AND MODEL DISCUSSION...KH
SOUTHCENTRAL ALASKA...KVP
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...PS
LONG TERM...SS

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 21, 3:13 PM AKSTCoastal Flood AdvisoryAFC29 hr
Nov 21, 3:13 PM AKSTCoastal Flood AdvisoryAFC45 hr
Nov 21, 3:25 PM AKSTSmall Craft AdvisoryAFC4 days
Nov 21, 3:34 PM AKSTStorm WarningAFC60 hr
Nov 21, 3:37 PM AKSTStorm WarningAFC48 hr
Nov 22, 3:58 AM AKSTSmall Craft AdvisoryAFC12 hr
Nov 22, 4:00 AM AKSTStorm WarningAFC48 hr

Nearby

Gale Warnings in Alaska, 2017Every gale warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.