Alert archive / Alaska / Hurricane Force Wind Warnings in 2017

Hurricane Force Wind Warning 1, NWS Anchorage, AK

January 21, 2017

NWS Anchorage, AK issued this hurricane force wind warning at Jan 21, 2017, 3:30 AM AKST. It was in force for 48 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
Jan 21, 2017, 3:30 AM AKST (12:30 UTC)
Expired
Jan 23, 2017, 3:51 AM AKST
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

901 
FZAK62 PAFC 211230
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
330 AM AKST SAT JAN 21 2017

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-220200-
330 AM AKST SAT JAN 21 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A 1013 MB LOW AT 59N
172W MOVES ONSHORE AT 57N 160W DISSIPATING SUN MORNING. A NORTH
PACIFIC LOW MOVES TO 51N 180 AT 945 MB SUN AFTERNOON THEN SHIFTS
TO 50N 172W AT 953 MB BY MON MORNING. THE ASSOCIATED FRONT PUSHES
INTO THE ALASKA PENINSULA BY MON MORNING.

$$

PKZ411-220200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
330 AM AKST SAT JAN 21 2017

...STORM WARNING TONIGHT AND SUNDAY...

.TODAY...E WIND 15 TO 30 KT. SEAS 4 TO 9 FT. FREEZING SPRAY.
.TONIGHT...E WIND 25 TO 40 KT INCREASING TO 40 TO 55 KT AFTER
MIDNIGHT. SEAS 6 TO 11 FT BUILDING TO 11 TO 19 FT AFTER MIDNIGHT.
FREEZING SPRAY.
.SUN...NE WIND 45 TO 60 KT. SEAS 15 TO 30 FT. FREEZING SPRAY.
.SUN NIGHT...NE WIND 40 TO 55 KT. SEAS 20 TO 34 FT.
.MON...N WIND 25 TO 40 KT. SEAS 14 TO 29 FT.
.TUE THROUGH WED...NE WIND 10 TO 25 KT. SEAS 9 TO 14 FT.

$$

PKZ412-220200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
330 AM AKST SAT JAN 21 2017

...STORM WARNING SUNDAY...

.TODAY...VARIABLE WIND TO 15 KT. SEAS 4 FT.
.TONIGHT...E WIND 15 TO 30 KT. SEAS 3 TO 7 FT. FREEZING SPRAY.
.SUN...E WIND 30 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 7 TO 12 FT BUILDING TO 14 TO 22 FT IN THE
AFTERNOON. FREEZING SPRAY.
.SUN NIGHT...NE WIND 40 TO 55 KT. SEAS 17 TO 31 FT.
.MON...NE WIND 35 TO 50 KT. SEAS 14 TO 29 FT.
.TUE THROUGH WED...N WIND 20 TO 30 KT. SEAS 9 TO 15 FT.

$$

PKZ413-220200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
330 AM AKST SAT JAN 21 2017

...HURRICANE FORCE WIND WARNING SUNDAY...

.TODAY...S WIND 10 TO 20 KT BECOMING SE 15 TO 30 KT IN THE
AFTERNOON. SEAS 3 TO 7 FT.
.TONIGHT...E WIND 25 TO 40 KT INCREASING TO 40 TO 55 KT AFTER
MIDNIGHT. SEAS 5 TO 10 FT BUILDING TO 8 TO 16 FT AFTER MIDNIGHT.
.SUN...E WIND 50 TO 65 KT. SEAS 13 TO 28 FT BUILDING TO 22 TO 34
FT IN THE AFTERNOON. SNOW AND RAIN.
.SUN NIGHT...NE WIND 45 TO 60 KT. SEAS 20 TO 35 FT.
.MON...N WIND 35 TO 50 KT. SEAS 17 TO 32 FT.
.TUE THROUGH WED...N WIND 25 KT. SEAS 9 TO 16 FT.

$$

PKZ414-220200-
BERING SEA OFFSHORE EAST OF 171W-
330 AM AKST SAT JAN 21 2017

...STORM WARNING SUNDAY...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TODAY...VARIABLE WIND TO 15 KT. SEAS 4 FT. FREEZING SPRAY.
.TONIGHT...NE WIND UP TO 15 KT BECOMING E 10 TO 25 KT AFTER
MIDNIGHT. SEAS 4 FT. FREEZING SPRAY.
.SUN...E WIND 30 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 5 TO 10 FT BUILDING TO 10 TO 18 FT IN THE
AFTERNOON. HEAVY FREEZING SPRAY.
.SUN NIGHT...E WIND 45 TO 60 KT. SEAS 14 TO 22 FT.
.MON...NE WIND 30 TO 45 KT. SEAS 10 TO 18 FT.
.TUE THROUGH WED...N WIND 20 TO 30 KT. SEAS 7 TO 12 FT.

$$
5 follow-up statements
781 
FZAK62 PAFC 220045
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
345 PM AKST SAT JAN 21 2017

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-221400-
345 PM AKST SAT JAN 21 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A 968 MB LOW AT 46N
171E WILL MOVE TO 52N 179W SUN AFTERNOON AT 946 MB...THEN MOVE TO
51N 166W AT 963 MB BY MON AFTERNOON.

$$

PKZ411-221400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
345 PM AKST SAT JAN 21 2017

...STORM WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E WIND 20 TO 35 KT INCREASING TO 35 TO 55 KT AFTER
MIDNIGHT. SEAS 6 TO 11 FT BUILDING TO 10 TO 18 FT. FREEZING
SPRAY.
.SUN...NE WIND 40 TO 60 KT. SEAS 16 TO 31 FT. FREEZING SPRAY.
.SUN NIGHT...NE WIND 35 TO 55 KT. SEAS 19 TO 34 FT. FREEZING
SPRAY.
.MON...N WIND 25 TO 40 KT. SEAS 18 TO 28 FT.
.MON NIGHT...N WIND 20 TO 30 KT. SEAS 14 TO 20 FT.
.TUE THROUGH WED...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.THU...NW WIND 10 TO 20 KT. SEAS 6 TO 9 FT.

$$

PKZ412-221400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
345 PM AKST SAT JAN 21 2017

...STORM WARNING SUNDAY AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...NE WIND 10 TO 25 KT BECOMING E 20 TO 35 KT AFTER
MIDNIGHT. SEAS 3 TO 8 FT. FREEZING SPRAY.
.SUN...E WIND 30 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 7 TO 12 FT BUILDING TO 14 TO 22 FT. HEAVY FREEZING
SPRAY IN THE AFTERNOON.
.SUN NIGHT...NE WIND 40 TO 55 KT. SEAS 18 TO 31 FT. HEAVY FREEZING
SPRAY.
.MON...NE WIND 35 TO 50 KT. SEAS 19 TO 28 FT.
.MON NIGHT...N WIND 25 TO 35 KT. SEAS 13 TO 21 FT.
.TUE THROUGH THU...N WIND 15 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ413-221400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
345 PM AKST SAT JAN 21 2017

...HURRICANE FORCE WIND WARNING SUNDAY...

.TONIGHT...E WIND 25 TO 40 KT INCREASING TO 40 TO 55 KT AFTER
MIDNIGHT. SEAS 5 TO 10 FT BUILDING TO 9 TO 17 FT. FREEZING SPRAY.
.SUN...E WIND 50 TO 65 KT. SEAS 14 TO 29 FT BUILDING TO 24 TO 34
FT IN THE AFTERNOON. SNOW AND RAIN.
.SUN NIGHT...NE WIND 45 TO 60 KT. SEAS 20 TO 35 FT. RAIN AND SNOW.
.MON...NE WIND 35 TO 50 KT. SEAS 17 TO 32 FT.
.MON NIGHT...N WIND 20 TO 35 KT. SEAS 14 TO 21 FT.
.TUE THROUGH THU...N WIND 15 TO 25 KT. SEAS 9 TO 14 FT.

$$

PKZ414-221400-
BERING SEA OFFSHORE EAST OF 171W-
345 PM AKST SAT JAN 21 2017

...STORM WARNING SUNDAY AND SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...VARIABLE WIND UP TO 15 KT BECOMING E 10 TO 25 KT AFTER
MIDNIGHT. SEAS 4 FT. FREEZING SPRAY.
.SUN...E WIND 35 TO 50 KT INCREASING TO 45 TO 60 KT IN THE
AFTERNOON. SEAS 6 TO 11 FT BUILDING TO 11 TO 19 FT. HEAVY
FREEZING SPRAY. SNOW.
.SUN NIGHT...E WIND 45 TO 60 KT. SEAS 15 TO 23 FT. HEAVY FREEZING
SPRAY. SNOW AND RAIN.
.MON...NE WIND 30 TO 45 KT. SEAS 12 TO 20 FT.
.MON NIGHT...NE WIND 20 TO 35 KT. SEAS 9 TO 14 FT.
.TUE THROUGH THU...N WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$
041 
FZAK62 PAFC 221259
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
359 AM AKST SUN JAN 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.

PKZ499-230200-
359 AM AKST SUN JAN 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO 53 NM WEST OF DUTCH HARBOR REMAINS ACTIVE. A NORTH
PACIFIC 951 MB LOW DEEPENS TO 943 MB 120 NM SOUTHWEST OF ADAK THIS
AFTERNOON THEN SWINGS TO 225 NM SOUTHEAST OF SAND POINT AT 969 MB
BY TUE MORNING. THE ASSOCIATED FRONT PUSHES INTO THE GULF OF
ALASKA BY TUE MORNING.

$$

PKZ411-230200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
359 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH TONIGHT...

.TODAY...NE WIND 45 TO 60 KT. SEAS 16 TO 31 FT. FREEZING SPRAY.
.TONIGHT...NE WIND 45 TO 60 KT DIMINISHING TO 35 TO 50 KT AFTER
MIDNIGHT. SEAS 21 TO 36 FT. FREEZING SPRAY.
.MON...N WIND 25 TO 40 KT DIMINISHING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 19 TO 29 FT. FREEZING SPRAY.
.MON NIGHT...N WIND 25 KT. SEAS 14 TO 19 FT.
.TUE THROUGH THU...NW WIND 15 TO 25 KT. SEAS 8 TO 13 FT.

$$

PKZ412-230200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
359 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND MONDAY...

.TODAY...E WIND 30 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT BUILDING TO 15 TO 23 FT IN THE
AFTERNOON. FREEZING SPRAY.
.TONIGHT...NE WIND 45 TO 60 KT. SEAS 19 TO 33 FT. HEAVY FREEZING
SPRAY. SNOW.
.MON...NE WIND 40 TO 50 KT DIMINISHING TO 30 TO 40 KT IN THE
AFTERNOON. SEAS 19 TO 28 FT. HEAVY FREEZING SPRAY. SNOW.
.MON NIGHT...NE WIND 25 TO 35 KT. SEAS 13 TO 20 FT.
.TUE THROUGH THU...NW WIND 20 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ413-230200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
359 AM AKST SUN JAN 22 2017

...HURRICANE FORCE WIND WARNING THROUGH TONIGHT...

.TODAY...E WIND 50 TO 65 KT. SEAS 17 TO 32 FT BUILDING TO 26 TO
38 FT IN THE AFTERNOON. SNOW AND RAIN.
.TONIGHT...NE WIND 50 TO 65 KT. SEAS 21 TO 36 FT. SNOW AND RAIN.
.MON...NE WIND 35 TO 50 KT BECOMING N 25 TO 40 KT IN THE
AFTERNOON.
SEAS 17 TO 32 FT. FREEZING SPRAY. SNOW AND RAIN.
.MON NIGHT...N WIND 20 TO 30 KT. SEAS 13 TO 20 FT.
.TUE THROUGH THU...NW WIND 15 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ414-230200-
BERING SEA OFFSHORE EAST OF 171W-
359 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...E WIND 30 TO 45 KT INCREASING TO 45 TO 60 KT IN THE
AFTERNOON. SEAS 10 TO 18 FT. HEAVY FREEZING SPRAY. SNOW.
.TONIGHT...E WIND 45 TO 60 KT. SEAS 15 TO 25 FT. HEAVY FREEZING
SPRAY. SNOW AND RAIN.
.MON...NE WIND 30 TO 45 KT. SEAS 12 TO 20 FT. HEAVY FREEZING
SPRAY. SNOW.
.MON NIGHT...NE WIND 20 TO 35 KT. SEAS 8 TO 16 FT.
.TUE THROUGH THU...NW WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$
107 
FZAK62 PAFC 221514 CCA
OFFALU

OFFSHORE WATERS FORECAST...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
614 AM AKST SUN JAN 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.

PKZ499-230315-
614 AM AKST SUN JAN 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A NORTH PACIFIC 951
MB LOW DEEPENS TO 943 MB AT 51N 179W SUN AFTERNOON THEN SWINGS TO
52N 158W AT 969 MB BY TUE MORNING. THE ASSOCIATED FRONT PUSHES
INTO THE GULF OF ALASKA BY TUE MORNING.

$$

PKZ411-230315-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
614 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH TONIGHT...

.TODAY...NE WIND 45 TO 60 KT. SEAS 16 TO 31 FT. FREEZING SPRAY.
.TONIGHT...NE WIND 45 TO 60 KT DIMINISHING TO 35 TO 50 KT AFTER
MIDNIGHT. SEAS 21 TO 36 FT. FREEZING SPRAY.
.MON...N WIND 25 TO 40 KT DIMINISHING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 19 TO 29 FT. FREEZING SPRAY.
.MON NIGHT...N WIND 25 KT. SEAS 14 TO 19 FT.
.TUE THROUGH THU...NW WIND 15 TO 25 KT. SEAS 8 TO 13 FT.

$$

PKZ412-230315-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
614 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND MONDAY...

.TODAY...E WIND 30 TO 45 KT INCREASING TO 40 TO 55 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT BUILDING TO 15 TO 23 FT IN THE
AFTERNOON. FREEZING SPRAY.
.TONIGHT...NE WIND 45 TO 60 KT. SEAS 19 TO 33 FT. HEAVY FREEZING
SPRAY. SNOW.
.MON...NE WIND 40 TO 50 KT DIMINISHING TO 30 TO 40 KT IN THE
AFTERNOON. SEAS 19 TO 28 FT. HEAVY FREEZING SPRAY. SNOW.
.MON NIGHT...NE WIND 25 TO 35 KT. SEAS 13 TO 20 FT.
.TUE THROUGH THU...NW WIND 20 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ413-230315-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
614 AM AKST SUN JAN 22 2017

...HURRICANE FORCE WIND WARNING THROUGH TONIGHT...

.TODAY...E WIND 50 TO 65 KT. SEAS 17 TO 32 FT BUILDING TO 26 TO
38 FT IN THE AFTERNOON. SNOW AND RAIN.
.TONIGHT...NE WIND 50 TO 65 KT. SEAS 21 TO 36 FT. SNOW AND RAIN.
.MON...NE WIND 35 TO 50 KT BECOMING N 25 TO 40 KT IN THE
AFTERNOON.
SEAS 17 TO 32 FT. FREEZING SPRAY. SNOW AND RAIN.
.MON NIGHT...N WIND 20 TO 30 KT. SEAS 13 TO 20 FT.
.TUE THROUGH THU...NW WIND 15 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ414-230315-
BERING SEA OFFSHORE EAST OF 171W-
614 AM AKST SUN JAN 22 2017

...STORM WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...E WIND 30 TO 45 KT INCREASING TO 45 TO 60 KT IN THE
AFTERNOON. SEAS 10 TO 18 FT. HEAVY FREEZING SPRAY. SNOW.
.TONIGHT...E WIND 45 TO 60 KT. SEAS 15 TO 25 FT. HEAVY FREEZING
SPRAY. SNOW AND RAIN.
.MON...NE WIND 30 TO 45 KT. SEAS 12 TO 20 FT. HEAVY FREEZING
SPRAY. SNOW.
.MON NIGHT...NE WIND 20 TO 35 KT. SEAS 8 TO 16 FT.
.TUE THROUGH THU...NW WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$
580 
FZAK62 PAFC 230037
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
337 PM AKST SUN JAN 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-
337 PM AKST SUN JAN 22 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A 942 MB LOW AT 51N
179W WILL MOVE TO 51N 166W AT 962 MB MON AFTERNOON...THEN BECOME
A TROUGH OF LOW PRESSURE OVER THE EASTERN BERING BY TUE AFTERNOON.

$$

PKZ411-231345-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
337 PM AKST SUN JAN 22 2017

...STORM WARNING TONIGHT...

.TONIGHT...NE WIND 40 TO 60 KT. SEAS 20 TO 34 FT. FREEZING SPRAY
N OF 56N.
.MON...N WIND 25 TO 40 KT DIMINISHING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 18 TO 29 FT. FREEZING SPRAY.
.MON NIGHT...N WIND 25 KT. SEAS 15 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 25 KT. SEAS 10 TO 14 FT.
.TUE NIGHT...N WIND 25 KT. SEAS 10 FT.
.WED THROUGH FRI...NW WIND 15 TO 30 KT. SEAS 7 TO 11 FT.

$$

PKZ412-231345-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
337 PM AKST SUN JAN 22 2017

...STORM WARNING THROUGH MONDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TONIGHT...NE WIND 45 TO 60 KT. SEAS 19 TO 32 FT. HEAVY FREEZING
SPRAY. SNOW.
.MON...NE WIND 40 TO 50 KT DIMINISHING TO 30 TO 40 KT IN THE
AFTERNOON. SEAS 18 TO 28 FT. HEAVY FREEZING SPRAY.
.MON NIGHT...N WIND 30 KT. SEAS 13 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 25 KT. SEAS 10 TO 13 FT.
.TUE NIGHT...N WIND 25 KT. SEAS 9 FT.
.WED THROUGH FRI...NW WIND 20 TO 30 KT. SEAS 8 TO 13 FT.

$$

PKZ413-231345-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
337 PM AKST SUN JAN 22 2017

...HURRICANE FORCE WIND WARNING TONIGHT...

.TONIGHT...NE WIND 50 TO 65 KT. SEAS 20 TO 35 FT. RAIN AND SNOW.
.MON...NE WIND 35 TO 50 KT BECOMING N 30 TO 40 KT IN THE
AFTERNOON. SEAS 18 TO 31 FT. FREEZING SPRAY. SNOW AND RAIN.
.MON NIGHT...N WIND 30 KT DIMINISHING TO 15 TO 25 KT AFTER
MIDNIGHT. SEAS 13 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 20 KT. SEAS 9 TO 13 FT.
.TUE NIGHT...N WIND 15 TO 25 KT. SEAS 9 FT.
.WED THROUGH FRI...NW WIND 30 KT. SEAS 9 TO 14 FT.

$$

PKZ414-231345-
BERING SEA OFFSHORE EAST OF 171W-
337 PM AKST SUN JAN 22 2017

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E WIND 45 TO 60 KT. SEAS 16 TO 24 FT. HEAVY FREEZING
SPRAY N OF 56N. SNOW AND RAIN.
.MON...NE WIND 30 TO 45 KT. SEAS 12 TO 20 FT. HEAVY FREEZING
SPRAY N OF 57N. SNOW.
.MON NIGHT...NE WIND 15 TO 30 KT. SEAS 8 TO 16 FT. HEAVY FREEZING
SPRAY N OF 57N. SNOW.
.TUE...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.TUE NIGHT...N WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.WED THROUGH FRI...NW WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$
735 
FZAK62 PAFC 231251
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
351 AM AKST MON JAN 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-
351 AM AKST MON JAN 23 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A 951 MB LOW NEAR 50N
174W WILL WEAKEN TO 971 MB AS IT MOVES TO 53N 160W EARLY MON
MORNING. A 972 MB LOW WILL DEVELOP NEAR NIKOLSKI LATE TONIGHT.

$$

PKZ411-240200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
351 AM AKST MON JAN 23 2017

...GALE WARNING TODAY...

.TODAY...N WIND 30 TO 45 KT DIMINISHING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 18 TO 29 FT. FREEZING SPRAY.
.TONIGHT...N WIND 25 KT. SEAS 15 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 25 KT. SEAS 12 FT. FREEZING SPRAY.
.TUE NIGHT...N WIND 25 KT. SEAS 10 FT.
.WED THROUGH FRI...NW WIND 15 TO 30 KT. SEAS 8 TO 12 FT.

$$

PKZ412-240200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
351 AM AKST MON JAN 23 2017

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...NE WIND 40 TO 50 KT DIMINISHING TO 30 TO 40 KT IN THE
AFTERNOON. SEAS 18 TO 28 FT. HEAVY FREEZING SPRAY.
.TONIGHT...N WIND 30 KT. SEAS 13 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 25 KT. SEAS 12 FT. FREEZING SPRAY.
.TUE NIGHT...N WIND 25 KT. SEAS 9 FT.
.WED THROUGH FRI...NW WIND 20 TO 30 KT. SEAS 9 TO 16 FT.

$$

PKZ413-240200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
351 AM AKST MON JAN 23 2017

...STORM WARNING TODAY...

.TODAY...NE WIND 35 TO 50 KT BECOMING N 30 TO 40 KT IN THE
AFTERNOON. SEAS 18 TO 32 FT. FREEZING SPRAY. SNOW AND RAIN.
.TONIGHT...N WIND 30 KT DIMINISHING TO 15 TO 25 KT AFTER MIDNIGHT.
SEAS 13 TO 19 FT. FREEZING SPRAY.
.TUE...N WIND 20 KT. SEAS 9 TO 12 FT. FREEZING SPRAY.
.TUE NIGHT...N WIND 15 TO 25 KT. SEAS 9 FT.
.WED THROUGH FRI...NW WIND 20 TO 30 KT. SEAS 10 TO 18 FT.

$$

PKZ414-240200-
BERING SEA OFFSHORE EAST OF 171W-
351 AM AKST MON JAN 23 2017

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...NE WIND 30 TO 45 KT. SEAS 12 TO 20 FT. HEAVY FREEZING
SPRAY. SNOW.
.TONIGHT...NE WIND 15 TO 30 KT. SEAS 8 TO 16 FT. HEAVY FREEZING
SPRAY. SNOW.
.TUE...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT. FREEZING SPRAY.
.TUE NIGHT...N WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.WED...NW WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.THU THROUGH FRI...W WIND 15 TO 30 KT. SEAS 9 TO 17 FT.

$$

What forecasters said that day

The local office's own words before this hurricane force wind 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 hurricane force wind warning went out at Jan 20, 4:32 PM AKST, 10 hours 58 minutes earlier.

Area forecast discussion, Jan 20, 4:32 PM AKST, 10 hours 58 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
432 PM AKST Fri Jan 20 2017

.ANALYSIS AND UPPER LEVELS...
A broad upper level trough extending across Western Alaska from a
closed low over the North Slope is beginning to slowly lift to the
north and east this afternoon. A front is entering the Cook Inlet
region, bringing snow to portions of the Kenai Peninsula and
setting the stage for another round of snowfall for Anchorage and
the Matanuska Valley this evening into tonight. Meanwhile, a very
cold arctic air mass is once again filtering into the southwest
mainland on the backside of the trough as precipitation moves east
of the Alaska Range. Convective snow showers continue in broad
cold air advection across a large swath of the Bering as a weak
North Pacific front approaches the Western Aleutians.

&&

.MODEL DISCUSSION...
Models are in reasonably good synoptic agreement through the short
term as the trough lifts to the northeast across the mainland and
the strong front enters the Aleutians later this weekend ahead of
an intensifying North Pacific low. 18z runs have also come into
slightly better agreement regarding some of the smaller scale
details regarding the snowfall set to impact Anchorage and Mat-
Su regions tonight, however there is still some uncertainty with
respect to the strength and duration of main snow band and how
quickly snow will taper off on Saturday, which will have large
implications on snow amounts. Primarily utilized the NAM for the
afternoon package.

&&

.AVIATION...
PANC...The snow will drop prevailing conditions to MVFR through
Saturday morning with periods of IFR conditions as the snow
fluctuates in intensity. The main snow band will dissipate by
Saturday morning, but scattered snow showers and MVFR conditions
look to persist through Saturday afternoon.

&&

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

The front that crossed the Aleutian Range is beginning to stall
across the Kenai Peninsula, the Anchorage Bowl and Matanuska
Valley, extending north into the Susitna Valley. Snowfall will
stream north across this region overnight, with up to one foot
expected along the Seward highway through the Kenai peninsula.
Generally amounts up to 6 inches are expected tonight over
Anchorage and the Matanuska Valley and the Susitna Valley east of
the Parks highway. As the front weakens in place on Sat, snow
showers will provide an additional 2 inches of snow over the
region. On Sun the upper trough finally passes over Southcentral
with a last round of snow shower activity.

Areas from Prince William Sound to the north and east will remain
fairly dry through the weekend, with continued cold temperatures
inland. The area with snowfall will experience warmer
temperatures on southerly flow.

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2...Sat and Sun)...
Very cold temperatures will settle over the area again tonight
into Saturday. The trough from the Bering that brought snow and
blowing snow to the region is slowly moving off to the east. Light
snow continues along the Aleutian range and in parts of Bristol
Bay, but even that should end through the evening hours. In the
wake of the trough, another plunge of arctic air is diving down
from the Chukchi Sea. Saturday will be a relatively quiet day
with dry, calm conditions and some patchy fog in the valleys. A
strong system over the Bering will allow an induced ridge to build
over southwest AK on Sunday. This will keep conditions dry and
allow temperatures to modify a little as flow starts to shift to
southeasterly.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2...Sat and
Sun)...
Cold air advection snow showers will continue across most of the
Bering and from the Central Aleutians eastward through much of
Sat. Some of these showers will bring periods of heavy snow and
gusty winds causing reduced visibility. Over the Western Bering,
an initial warm front will move in tonight with increasing
southeast winds and some light snow, possibly mixed with rain at
times. Then we shift our attention to the next strong low that
will move towards the Central Aleutians from the North Pacific.

The first impact from this will be strong east to southeast winds
from Adak to Dutch Harbor late Sat night into mid-day Sunday.
Right now it looks like winds will top out in the 65-70 mph range,
but we will be watching how it develops. A bit more cold air or
upper level support and we might see things get close to warning
level. Beyond that, conditions look to be setting up well for snow
and blowing snow conditions over the Pribilofs later Sun. Cold air
will remain in place and east to northeast flow is a very
favorable set-up for reduced visibilities at the islands. We will
also watch this to make sure the storm track remains consistent on
the next few models.

&&

.LONG TERM FORECAST (Days 3 through 7)...
An upper level closed low is centered over the Central Aleutians
starting out next week. As this feature moves eastward the strong
meridional south to north jet streak tracks into the Southeast
Panhandle by Tuesday. This pattern continues through the the next
weekend as the longwave trough moves farther eastward. Meanwhile,
look for a warming trend with the southerly flow into the Gulf
extending through the Southcentral Alaska region. Therefore, the
temperatures in the aforementioned region rises above freezing due
from the warm air advection. This results in more moisture
streaming into the AOR with a wintry mix along the coastal
communities as the warmer temperature filter into the region.
While the interior sets up with a better scenario for moderate
snowfall in favored mountain regions. Meanwhile, the models are
struggling some with the complex low developing in the North
Pacific Ocean before tracking towards the Central Aleutians by
Monday. This system will bring warmer temperatures along the
Aleutian Chain, and the lower Bering. While the rest of the
Bering is influenced by easterly to northeasterly flow through
majority of next week. Since the jet stream remains south of the
Aleutian Chain the storm systems will continue to track along the
Chain before entering the Gulf of Alaska. The forecast confidence
remains average through next week.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale 150 170 172.
Storm 173-178.
Heavy Freezing Spray 127 130 138 160 165 180 185.

&&

SYNOPSIS AND MODEL DISCUSSION...CB
SOUTHCENTRAL ALASKA...DS
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MO
LONG TERM...PD

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 20, 3:34 PM AKSTHeavy Freezing Spray WarningAFC60 hr
Jan 20, 3:41 PM AKSTGale WarningAFC12 hr
Jan 20, 3:41 PM AKSTStorm WarningAFC12 hr
Jan 20, 3:46 PM AKSTGale WarningAFC12 hr
Jan 20, 3:46 PM AKSTSmall Craft AdvisoryAFC12 hr
Jan 20, 3:46 PM AKSTStorm WarningAFC48 hr
Jan 20, 10:07 PM AKSTSmall Craft AdvisoryAFC6 hr
Jan 21, 3:30 AM AKSTBrisk Wind AdvisoryAFC12 hr
Jan 21, 3:30 AM AKSTGale WarningAFC3 days
Jan 21, 3:30 AM AKSTHurricane Force Wind WarningAFC48 hr
Jan 21, 3:30 AM AKSTSmall Craft AdvisoryAFC12 hr
Jan 21, 3:30 AM AKSTStorm WarningAFC60 hr
Jan 21, 3:30 AM AKSTStorm WarningAFC60 hr
Jan 21, 4:10 AM AKSTBlizzard WatchAFC12 hr
Jan 21, 4:10 AM AKSTHigh Wind WatchAFC12 hr
Jan 21, 4:10 AM AKSTHigh Wind WarningAFC6 hr
Jan 21, 4:10 AM AKSTWinter Storm WatchAFC25 hr
Jan 21, 10:08 AM AKSTBlizzard WarningAFC53 hr
Jan 21, 10:08 AM AKSTWinter Storm WarningAFC19 hr

Nearby

Hurricane Force Wind Warnings in Alaska, 2017Every hurricane force wind 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.