Storm Warning 173, NWS Anchorage, AK

911 
FZAK62 PAFC 230024
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
324 PM AKST TUE DEC 22 2015

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.

PKZ499-231445-
324 PM AKST TUE DEC 22 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A BROAD 988 MB LOW AT 53N 169E DISSIPATES TONIGHT. A NORTH
PACIFIC LOW MOVES TO 51N 177E WED MORNING AT 972 MB AND TO 54N 180
AT 964 MB WED EVENING THEN REMAINS NEARLY STATIONARY THROUGH THU
AFTERNOON.

$$

PKZ411-231445-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
324 PM AKST TUE DEC 22 2015

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

.TONIGHT...SW WIND 15 TO 30 KT BECOMING SE AFTER MIDNIGHT. SEAS 11
TO 16 FT. FREEZING SPRAY.
.WED...E WIND 25 TO 40 KT BECOMING NE 35 TO 50 KT IN THE AFTERNOON.
SEAS 14 FT BUILDING TO 15 TO 24 FT IN THE AFTERNOON. SNOW. FREEZING
SPRAY.
.WED NIGHT...N WIND 40 TO 55 KT. SEAS 18 TO 27 FT. SNOW AND RAIN.
.THU...N WIND 35 TO 50 KT. SEAS 19 TO 27 FT.
.THU NIGHT...N WIND 30 TO 45 KT. SEAS 18 TO 27 FT.
.FRI...N WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.SAT THROUGH SUN...SE WIND 10 TO 20 KT. SEAS 8 TO 13 FT.

$$

PKZ412-231445-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
324 PM AKST TUE DEC 22 2015

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

.TONIGHT...W WIND 10 TO 20 KT BECOMING S 10 TO 20 KT AFTER
MIDNIGHT. SEAS 9 TO 13 FT. FREEZING SPRAY.
.WED...E WIND 20 TO 35 KT INCREASING TO 35 TO 50 KT IN THE
AFTERNOON. SEAS 10 FT BUILDING TO 12 TO 19 FT IN THE AFTERNOON.
SNOW. FREEZING SPRAY.
.WED NIGHT...E WIND 35 TO 50 KT. SEAS 14 TO 22 FT. RAIN AND SNOW.
FREEZING SPRAY.
.THU...SE WIND 20 TO 35 KT. SEAS 16 TO 22 FT.
.THU NIGHT...NE WIND 20 TO 35 KT. SEAS 11 TO 18 FT.
.FRI...N WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.SAT THROUGH SUN...E WIND 10 TO 25 KT. SEAS 6 TO 11 FT.

$$

PKZ413-231445-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
324 PM AKST TUE DEC 22 2015

...STORM WARNING WEDNESDAY NIGHT...

.TONIGHT...S WIND 10 TO 25 KT. SEAS 12 FT. SNOW.
.WED...SE WIND 25 TO 40 KT. SEAS 10 TO 17 FT. RAIN AND SNOW.
.WED NIGHT...S WIND 35 TO 50 KT. SEAS 16 TO 23 FT. RAIN.
.THU...S WIND 25 TO 40 KT. SEAS 12 TO 19 FT.
.THU NIGHT...N WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.FRI...NW WIND 30 TO 45 KT. SEAS 13 TO 28 FT.
.SAT...SE WIND 10 TO 20 KT. SEAS 8 TO 13 FT.
.SUN...SW WIND 10 TO 20 KT. SEAS 6 TO 10 FT.

$$

PKZ414-231445-
BERING SEA OFFSHORE EAST OF 171W-
324 PM AKST TUE DEC 22 2015

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

.TONIGHT...W WIND 15 TO 30 KT. SEAS 8 TO 12 FT.
.WED...W WIND 10 TO 20 KT BECOMING SE 20 TO 35 KT IN THE
AFTERNOON. SEAS 8 TO 13 FT. SNOW AND RAIN.
.WED NIGHT...SE WIND 25 TO 40 KT. SEAS 9 TO 17 FT. RAIN AND SNOW.
.THU...SE WIND 25 TO 35 KT. SEAS 12 TO 18 FT.
.THU NIGHT...E WIND 35 TO 50 KT. SEAS 12 TO 20 FT.
.FRI...NE WIND 25 TO 40 KT. SEAS 11 TO 18 FT.
.SAT...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.SUN...SE WIND 10 TO 20 KT. SEAS 6 FT.

$$

228 
FZAK62 PAFC 231211
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
311 AM AKST WED DEC 23 2015

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.

PKZ499-240230-
311 AM AKST WED DEC 23 2015
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 MB LOW AT 48N 177E MOVES TO 55N 179E AS A 961 MB THU
MORNING. THIS LOW SHIFTS TO 54N 178W AS A 967 MB LOW THU NIGHT
BEFORE DISSIPATING NEAR 53N 174W FRI MORNING. THE ASSOCIATED
FRONT PUSHES INTO THE CENTRAL ALEUTIANS WED AFTERNOON AND DRIVES
TO THE WESTERN ALASKA PENINSULA BY FRI MORNING. A 968 MB LOW AT
48N 164W THU AFTERNOON MOVES TO 53N 162W BY FRIDAY MORNING.

$$

PKZ411-240230-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
311 AM AKST WED DEC 23 2015

...STORM WARNING THROUGH THURSDAY...

.TODAY...NE WIND INCREASING TO 35 TO 50 KT. SEAS 12 FT BUILDING
TO 13 TO 18 FT IN THE AFTERNOON. SNOW AND RAIN. FREEZING SPRAY N
OF 57N.
.TONIGHT...NE WIND 40 TO 55 KT. SEAS 16 TO 27 FT. RAIN AND SNOW
SHOWERS. FREEZING SPRAY N OF 57N.
.THU...N WIND 35 TO 50 KT. SEAS 18 TO 27 FT. SNOW AND RAIN.
.THU NIGHT...NW WIND 35 TO 50 KT. SEAS 18 TO 26 FT.
.FRI...N WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.SAT THROUGH SUN...SE WIND 10 TO 20 KT. SEAS 9 TO 14 FT.

$$

PKZ412-240230-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
311 AM AKST WED DEC 23 2015

...STORM WARNING THROUGH TONIGHT...

.TODAY...E WIND 15 TO 25 KT INCREASING TO 35 TO 50 KT IN THE
AFTERNOON. SEAS 10 BUILDING TO 15 FT. SNOW. FREEZING SPRAY.
.TONIGHT...E WIND 35 TO 50 KT. SEAS 13 TO 21 FT. SNOW. FREEZING
SPRAY.
.THU...SE WIND 20 TO 35 KT. SEAS 15 TO 21 FT. RAIN AND SNOW.
.THU NIGHT...NE WIND 20 TO 35 KT. SEAS 12 TO 16 FT.
.FRI...N WIND 25 TO 40 KT. SEAS 11 TO 19 FT.
.SAT THROUGH SUN...E WIND 10 TO 25 KT. SEAS 7 TO 11 FT.

$$

PKZ413-240230-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
311 AM AKST WED DEC 23 2015

...GALE WARNING THROUGH THURSDAY...

.TODAY...SE WIND INCREASING TO 30 TO 45 KT. SEAS 10 TO 16 FT.
RAIN AND SNOW.
.TONIGHT...S WIND 25 TO 40 KT. SEAS 14 TO 20 FT.
.THU...S WIND 20 TO 35 KT. SEAS 12 TO 19 FT. RAIN AND SNOW
SHOWERS.
.THU NIGHT...N WIND 30 TO 45 KT. SEAS 11 TO 19 FT.
.FRI...NW WIND 35 TO 50 KT. SEAS 14 TO 29 FT.
.SAT...SE WIND 10 TO 20 KT. SEAS 8 TO 13 FT.
.SUN...SW WIND 10 TO 20 KT. SEAS 7 TO 12 FT.

$$

PKZ414-240230-
BERING SEA OFFSHORE EAST OF 171W-
311 AM AKST WED DEC 23 2015

...GALE WARNING THROUGH THURSDAY...

.TODAY...W WIND 10 TO 25 KT BECOMING SE 20 TO 35 KT IN THE
AFTERNOON. SEAS 8 TO 11 FT. SNOW AND RAIN.
.TONIGHT...S WIND 25 TO 40 KT. SEAS 10 TO 18 FT. RAIN AND SNOW.
.THU...SE WIND 25 TO 35 KT. SEAS 12 TO 18 FT. RAIN.
.THU NIGHT...E WIND 30 TO 45 KT. SEAS 12 TO 20 FT.
.FRI...NE WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.SAT...NE WIND 10 TO 25 KT. SEAS 6 TO 11 FT.
.SUN...SE WIND 10 TO 20 KT. SEAS 5 TO 10 FT.

$$

743 
FZAK62 PAFC 240020
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
320 PM AKST WED DEC 23 2015

OFFSHORE WATERS FORECAST FOR THE BERING SEA

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

PKZ499-241430-
320 PM AKST WED DEC 23 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A 967 MB LOW AT 53N 179E MOVES TO 54N 178W AT 970 MB THU AFTERNOON
THEN DISSIPATES. A 977 MB NORTH PACIFIC LOW MOVES TO 48N 168W THU
MORNING THEN TO 52N 167W AT 957 MB THU EVENING THEN TO 54N 164W AT
950 MB FRI AFTERNOON.

$$

PKZ411-241430-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
320 PM AKST WED DEC 23 2015

...STORM WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...NE WIND 40 TO 55 KT. SEAS 16 TO 26 FT. SNOW AND RAIN.
.THU...N WIND 35 TO 50 KT. SEAS 19 TO 26 FT. SNOW AND RAIN.
.THU NIGHT...NW WIND 35 TO 50 KT. SEAS 17 TO 25 FT. SNOW. 
FREEZING SPRAY.
.FRI...NW WIND 30 TO 45 KT. SEAS 13 TO 21 FT.
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 9 TO 14 FT.
.SAT THROUGH SUN...SE WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.MON...NE WIND 25 TO 40 KT. SEAS 14 TO 22 FT.

$$

PKZ412-241430-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
320 PM AKST WED DEC 23 2015

...STORM WARNING TONIGHT...

.TONIGHT...E WIND 35 TO 50 KT DIMINISHING TO 25 TO 40 KT AFTER
MIDNIGHT. SEAS 13 TO 21 FT. RAIN AND SNOW.
.THU...SE WIND 20 TO 35 KT. SEAS 15 TO 20 FT. RAIN.
.THU NIGHT...E WIND 10 TO 25 KT BECOMING N 25 TO 40 KT AFTER
MIDNIGHT. SEAS 11 TO 16 FT. RAIN AND SNOW.
.FRI...N WIND 30 TO 45 KT. SEAS 13 TO 21 FT.
.FRI NIGHT...N WIND 25 TO 40 KT. SEAS 13 TO 21 FT.
.SAT THROUGH SUN...E WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...E WIND 20 TO 35 KT. SEAS 10 TO 18 FT.

$$

PKZ413-241430-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
320 PM AKST WED DEC 23 2015

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 25 TO 40 KT. SEAS 14 TO 22 FT. RAIN.
.THU...S WIND 25 TO 40 KT BECOMING SE 15 TO 30 KT IN THE
AFTERNOON. SEAS 13 TO 21 FT. RAIN.
.THU NIGHT...NE WIND 20 TO 35 KT BECOMING N 30 TO 45 KT AFTER
MIDNIGHT. SEAS 10 TO 18 FT. RAIN WITH SNOW.
.FRI...NW WIND 35 TO 50 KT. SEAS 13 TO 28 FT.
.FRI NIGHT...NW WIND 30 TO 45 KT. SEAS 14 TO 27 FT.
.SAT...SE WIND 10 TO 25 KT. SEAS 9 TO 17 FT.
.SUN...SW WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...S WIND 20 TO 30 KT. SEAS 10 TO 17 FT.

$$

PKZ414-241430-
BERING SEA OFFSHORE EAST OF 171W-
320 PM AKST WED DEC 23 2015

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 25 TO 40 KT. SEAS 10 TO 18 FT. RAIN AND SNOW.
.THU...S WIND 20 TO 35 KT. SEAS 12 TO 18 FT. RAIN.
.THU NIGHT...E WIND 30 TO 45 KT. SEAS 11 TO 18 FT. RAIN.
.FRI...E WIND 20 TO 35 KT. SEAS 10 TO 16 FT.
.FRI NIGHT...NE WIND 20 TO 30 KT. SEAS 10 TO 18 FT.
.SAT...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.SUN THROUGH MON...SE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.

$$

645 
FZAK62 PAFC 240948 AAA
OFFALU

OFFSHORE WATERS FORECAST...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1248 AM AKST THU DEC 24 2015

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.

PKZ499-242215-
1248 AM AKST THU DEC 24 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A 967 MB LOW AT 53N 179E MOVES TO 54N 178W AT 970 MB THU AFTERNOON
THEN DISSIPATES. A 977 MB NORTH PACIFIC LOW MOVES TO 48N 168W THU
MORNING THEN TO 52N 167W AT 957 MB THU EVENING THEN TO 54N 164W AT
950 MB FRI AFTERNOON.

$$

PKZ411-242215-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
1248 AM AKST THU DEC 24 2015

...STORM WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...NE WIND 40 TO 55 KT. SEAS 18 TO 34 FT. SNOW AND RAIN.
.THU...N WIND 35 TO 50 KT. SEAS 19 TO 32 FT. SNOW AND RAIN.
.THU NIGHT...NW WIND 35 TO 50 KT. SEAS 17 TO 25 FT. SNOW. 
FREEZING SPRAY. 
.FRI...NW WIND 30 TO 45 KT. SEAS 13 TO 21 FT. 
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 9 TO 14 FT. 
.SAT THROUGH SUN...SE WIND 10 TO 25 KT. SEAS 9 TO 14 FT. 
.MON...NE WIND 25 TO 40 KT. SEAS 14 TO 22 FT.

$$

PKZ412-242215-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
1248 AM AKST THU DEC 24 2015

...STORM WARNING TONIGHT...

.TONIGHT...E WIND 35 TO 50 KT DIMINISHING TO 25 TO 40 KT AFTER
MIDNIGHT. SEAS 13 TO 21 FT. RAIN AND SNOW. 
.THU...SE WIND 20 TO 35 KT. SEAS 15 TO 20 FT. RAIN. 
.THU NIGHT...E WIND 10 TO 25 KT BECOMING N 25 TO 40 KT AFTER
MIDNIGHT. SEAS 11 TO 16 FT. RAIN AND SNOW. 
.FRI...N WIND 30 TO 45 KT. SEAS 13 TO 21 FT. 
.FRI NIGHT...N WIND 25 TO 40 KT. SEAS 13 TO 21 FT. 
.SAT THROUGH SUN...E WIND 10 TO 25 KT. SEAS 7 TO 12 FT. 
.MON...E WIND 20 TO 35 KT. SEAS 10 TO 18 FT.

$$

PKZ413-242215-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
1248 AM AKST THU DEC 24 2015

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 25 TO 40 KT. SEAS 14 TO 22 FT. RAIN. 
.THU...S WIND 25 TO 40 KT BECOMING SE 15 TO 30 KT IN THE
AFTERNOON. SEAS 13 TO 21 FT. RAIN. 
.THU NIGHT...NE WIND 20 TO 35 KT BECOMING N 30 TO 45 KT AFTER
MIDNIGHT. SEAS 10 TO 18 FT. RAIN WITH SNOW. 
.FRI...NW WIND 35 TO 50 KT. SEAS 13 TO 28 FT. 
.FRI NIGHT...NW WIND 30 TO 45 KT. SEAS 14 TO 27 FT. 
.SAT...SE WIND 10 TO 25 KT. SEAS 9 TO 17 FT. 
.SUN...SW WIND 10 TO 25 KT. SEAS 7 TO 12 FT. 
.MON...S WIND 20 TO 30 KT. SEAS 10 TO 17 FT.

$$

PKZ414-242215-
BERING SEA OFFSHORE EAST OF 171W-
1248 AM AKST THU DEC 24 2015

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...S WIND 25 TO 40 KT. SEAS 10 TO 18 FT. RAIN AND SNOW. 
.THU...S WIND 20 TO 35 KT. SEAS 12 TO 18 FT. RAIN. 
.THU NIGHT...E WIND 30 TO 45 KT. SEAS 11 TO 18 FT. RAIN. 
.FRI...E WIND 20 TO 35 KT. SEAS 10 TO 16 FT. 
.FRI NIGHT...NE WIND 20 TO 30 KT. SEAS 10 TO 18 FT. 
.SAT...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT. 
.SUN THROUGH MON...SE WIND 15 TO 30 KT. SEAS 5 TO 10 FT.

$$

867 
FZAK62 PAFC 241231
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
331 AM AKST THU DEC 24 2015

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.

PKZ499-250315-
331 AM AKST THU DEC 24 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A 963 MB LOW AT 54N 180 MOVES TO 53N 175W AS A 968 MB LOW THU
NIGHT AND DISSIPATES FRI MORNING. THE ASSOCIATED FRONT EXTENDS
OVER THE CENTRAL ALEUTIANS INTO A SECOND LOW AND WILL MOVE OVER
THE WESTERN ALASKA PENINSULA BY SATURDAY MORNING. THE SECOND LOW
NEAR 45N 170W DRIVES TO 54N 166W AS A 951 MB LOW FRI MORNING THEN
SHIFTS TO 54N 160W AS 961 MB LOW BY SAT MORNING.

$$

PKZ411-250315-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
331 AM AKST THU DEC 24 2015

...STORM WARNING THROUGH TONIGHT...

.TODAY...N WIND 45 TO 60 KT. SEAS 22 TO 35 FT. SNOW.
.TONIGHT...NW WIND 35 TO 50 KT. SEAS 18 TO 28 FT. SNOW. FREEZING
SPRAY.
.FRI...NW WIND 30 TO 45 KT. SEAS 14 TO 22 FT. FREEZING SPRAY.
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.SAT THROUGH SUN...E WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.MON...NE WIND 25 TO 40 KT. SEAS 15 TO 23 FT.

$$

PKZ412-250315-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
331 AM AKST THU DEC 24 2015

...STORM WARNING FRIDAY...

.TODAY...SE TO NE WIND 35 TO 45 KT DIMINISHING TO 15 TO 30 KT IN
THE AFTERNOON. SEAS 16 TO 24 FT. RAIN AND SNOW.
.TONIGHT...E WIND 15 TO 25 KT BECOMING NW WIND 25 TO 40 KT AFTER
MIDNIGHT. SEAS 11 TO 19 FT. RAIN AND SNOW.
.FRI...N WIND 35 TO 50 KT DIMINISHING TO 25 TO 40 KT IN THE
AFTERNOON. SEAS 13 TO 24 FT. RAIN WITH SNOW.
.FRI NIGHT...N WIND 25 TO 40 KT. SEAS 12 TO 20 FT.
.SAT THROUGH SUN...E WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...E WIND 20 TO 30 KT. SEAS 11 TO 19 FT.

$$

PKZ413-250315-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
331 AM AKST THU DEC 24 2015

...STORM WARNING TONIGHT AND FRIDAY...

.TODAY...S WIND 25 TO 40 KT BECOMING SE 15 TO 30 KT IN THE
AFTERNOON. SEAS 16 TO 24 FT. RAIN SHOWERS.
.TONIGHT...NW WIND 35 TO 50 KT. SEAS 15 TO 27 FT. E OF 177W...SE
WIND 15 TO 25 KT BECOMING NW 30 TO 45 KT AFTER MIDNIGHT. SEAS 12
TO 19 FT. RAIN WITH SNOW.
.FRI...NW WIND 35 TO 50 KT. SEAS 17 TO 29 FT. SNOW. FREEZING
SPRAY.
.FRI NIGHT...NW WIND 35 TO 50 KT. SEAS 15 TO 28 FT.
.SAT...N WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.SUN...SW WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...S WIND 20 TO 30 KT. SEAS 9 TO 14 FT.

$$

PKZ414-250315-
BERING SEA OFFSHORE EAST OF 171W-
331 AM AKST THU DEC 24 2015

...STORM WARNING TONIGHT...

.TODAY...S WIND 20 TO 35 KT BECOMING SE IN THE AFTERNOON.
SEAS 12 TO 17 FT. RAIN SHOWERS.
.TONIGHT...E WIND 35 TO 50 KT. SEAS 11 TO 18 FT. RAIN.
.FRI...E WIND 25 TO 40 KT BECOMING NE 15 TO 30 KT IN THE
AFTERNOON. SEAS 11 TO 18 FT. RAIN.
.FRI NIGHT...NE WIND 20 TO 30 KT. SEAS 9 TO 16 FT.
.SAT...NE WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN THROUGH MON...SE WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

946 
FZAK62 PAFC 250005
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
305 PM AKST THU DEC 24 2015

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.

PKZ499-251500-
305 PM AKST THU DEC 24 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A 964 MB LOW AT 55N 179W WILL MOVE SOUTHEAST AND MERGE INTO THE
INTENSIFYING LOW THAT IS MOVING TO NEAR 55N 166W FRI AFTERNOON. A
973 MB LOW AT 51N 165W WILL INTENSIFY TO 952 MB AT 55N 166W FRI
AFTERNOON THEN WEAKEN TO 978 MB AS IT MOVES TO 56N 154W SAT
AFTERNOON.

$$

PKZ411-251500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
305 PM AKST THU DEC 24 2015

...STORM WARNING TONIGHT...

.TONIGHT...NW WIND 40 TO 55 KT. SEAS 19 TO 27 FT. SNOW. FREEZING
SPRAY.
.FRI...NW WIND 30 TO 45 KT. SEAS 15 TO 23 FT. SNOW. FREEZING SPRAY.
.FRI NIGHT...NW WIND 20 TO 35 KT BECOMING NE UP TO 20 KT AFTER
MIDNIGHT. SEAS 11 TO 19 FT SUBSIDING TO 9 TO 13 FT AFTER MIDNIGHT.
FREEZING SPRAY.
.SAT...E WIND 10 TO 25 KT. SEAS 9 FT.
.SAT NIGHT...E WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.SUN...E WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.MON THROUGH TUE...N WIND 25 TO 40 KT. SEAS 14 TO 26 FT.

$$

PKZ412-251500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
305 PM AKST THU DEC 24 2015

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

.TONIGHT...NE WIND 15 TO 30 KT. SEAS 13 TO 20 FT. RAIN WITH SNOW.
.FRI...N WIND 30 TO 45 KT. SEAS 12 TO 20 FT. RAIN WITH SNOW.
.FRI NIGHT...N WIND 25 TO 40 KT DIMINISHING TO 20 TO 30 KT AFTER
MIDNIGHT. SEAS 12 TO 20 FT. RAIN AND SNOW.
.SAT...N WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.SAT NIGHT...E WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.SUN THROUGH TUE...E WIND 20 TO 35 KT. SEAS 9 TO 14 FT.

$$

PKZ413-251500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
305 PM AKST THU DEC 24 2015

...STORM WARNING FRIDAY AND FRIDAY NIGHT...

.TONIGHT...SE WIND 30 TO 45 KT BECOMING N AFTER MIDNIGHT.
SEAS 11 TO 19 FT. RAIN.
.FRI...NW WIND 35 TO 50 KT. SEAS 14 TO 28 FT. RAIN WITH SNOW.
.FRI NIGHT...NW WIND 35 TO 50 KT DIMINISHING TO 25 TO 40 KT AFTER
MIDNIGHT. SEAS 15 TO 28 FT. RAIN.
.SAT...N WIND 15 TO 30 KT. SEAS 10 TO 18 FT.
.SAT NIGHT...E WIND UP TO 15 KT. SEAS 5 TO 10 FT.
.SUN...SW WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...S WIND 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE...W WIND 15 TO 25 KT. SEAS 13 TO 20 FT.

$$

PKZ414-251500-
BERING SEA OFFSHORE EAST OF 171W-
305 PM AKST THU DEC 24 2015

...STORM WARNING FRIDAY...

.TONIGHT...E WIND 30 TO 45 KT. SEAS 10 TO 18 FT. RAIN.
.FRI...NE WIND 35 TO 50 KT DIMINISHING TO 25 TO 40 KT IN THE
AFTERNOON. SEAS 11 TO 19 FT. RAIN.
.FRI NIGHT...NE WIND 20 TO 35 KT. SEAS 12 TO 18 FT. RAIN.
.SAT...N WIND 15 TO 30 KT. SEAS 8 TO 16 FT.
.SAT NIGHT...E WIND 15 KT. SEAS 6 TO 11 FT.
.SUN THROUGH TUE...S WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

090 
FZAK62 PAFC 251238
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
338 AM AKST FRI DEC 25 2015

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.

PKZ499-260245-
338 AM AKST FRI DEC 25 2015
.SYNOPSIS FOR CENTRAL BERING SEA...
A 967 MB LOW AT 53N 173W DISSIPATES LATE FRI MORNING. A 957 MB LOW
NEAR 54N 163W MOVES TO 56N 165W FRI NIGHT AT 957 MB THEN SHIFTS
TO 57N 156W AS A 983 MB LOW SUN MORNING THEN DISSIPATES. A 984 MB
LOW FORMS AT 48N 174E SAT MORNING MOVES TO 51N 171W AS AN ELONGATED
973 MB LOW BY SUN MORNING. THE ASSOCIATED FRONT WRAPS BACK INTO
THE NORTH PACIFIC.

$$

PKZ411-260245-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
338 AM AKST FRI DEC 25 2015

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW WIND 30 TO 45 KT. SEAS 17 TO 26 FT. SNOW. HEAVY
FREEZING SPRAY N OF 58N.
.TONIGHT...NW WIND 20 TO 35 KT BECOMING VARIABLE 15 KT AFTER
MIDNIGHT. SEAS 13 TO 22 FT SUBSIDING TO 9 TO 12 FT. FREEZING
SPRAY.
.SAT...E WIND 10 TO 20 KT. SEAS 8 TO 11 FT.
.SAT NIGHT...NE WIND UP TO 20 KT. SEAS 8 TO 11 FT.
.SUN...E WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.MON THROUGH TUE...N WIND 25 TO 40 KT. SEAS 14 TO 26 FT.

$$

PKZ412-260245-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
338 AM AKST FRI DEC 25 2015

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE TO NW WIND 30 TO 45 KT. SEAS 10 TO 17 FT. RAIN AND
SNOW.
.TONIGHT...NE TO NW WIND 20 TO 35 KT. SEAS 12 TO 17 FT. RAIN AND
SNOW.
.SAT...NW WIND 10 TO 20 KT BECOMING NE IN THE AFTERNOON. SEAS 9
TO 14 FT. SNOW AND RAIN.
.SAT NIGHT...NE WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.SUN THROUGH TUE...E WIND 20 TO 35 KT. SEAS 9 TO 14 FT.

$$

PKZ413-260245-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
338 AM AKST FRI DEC 25 2015

...STORM WARNING TODAY...

.TODAY...NW WIND 35 TO 50 KT. SEAS 16 TO 29 FT. RAIN AND SNOW.
.TONIGHT...NW WIND 30 TO 45 KT DIMINISHING TO 20 TO 35 KT AFTER
MIDNIGHT. SEAS 14 TO 26 FT. RAIN.
.SAT...NW WIND 15 TO 30 KT BECOMING NE UP TO 15 KT IN THE
AFTERNOON. SEAS 12 TO 19 FT DIMINISHING TO 10 FT.
.SAT NIGHT...NE WIND 15 KT. SEAS 6 TO 10 FT.
.SUN...SW WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.MON...S WIND 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE...W WIND 15 TO 25 KT. SEAS 13 TO 20 FT.

$$

PKZ414-260245-
BERING SEA OFFSHORE EAST OF 171W-
338 AM AKST FRI DEC 25 2015

...STORM WARNING TODAY...

.TODAY...E WIND 30 TO 50 KT. W OF 168W...NW WIND 20 TO 35 KT.
SEAS 12 TO 20 FT. RAIN.
.TONIGHT...E WIND 25 TO 40 KT. W OF 168W...NW WIND 35 KT. SEAS 13
TO 19 FT. RAIN.
.SAT...N WIND 20 TO 30 KT DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. SEAS 9 TO 14 FT.
.SAT NIGHT...E WIND UP TO 15 KT. SEAS 5 TO 9 FT.
.SUN...NE WIND UP TO 20 KT. SEAS 5 TO 10 FT.
.MON THROUGH TUE...S WIND 15 TO 30 KT. SEAS 8 TO 13 FT.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
347 PM AKST MON DEC 21 2015

.ANALYSIS AND UPPER LEVELS...
FOG HAS BEEN THE PRIMARY WEATHER CONCERN ACROSS MUCH OF SOUTHERN
MAINLAND ALASKA THIS AFTERNOON. IN SOUTHCENTRAL IN AND AROUND
THE ANCHORAGE BOWL...AREAS OF LOCALLY DENSE FOG FORMED THIS
MORNING IN THE SATURATED LAYER THAT DEVELOPED UNDER A STRONG
SURFACE INVERSION. VERY LIGHT WINDS THROUGH THE LOWER HALF OF
THE ATMOSPHERE ALSO INHIBITED MIXING. A WEAK UPPER LEVEL WAVE
APPROACHED THE ANCHORAGE AREA MID-MORNING...CAUSING THE FOG TO
RAPIDLY DIMINISH AFTER SUNRISE. OVER SOUTHWEST ALASKA...WIDESPREAD
FOG INITIATED BY THE SAME PHENOMENA DESCRIBED ABOVE PERSISTS
ACROSS MOST INLAND AREAS FROM BETHEL EAST TO KOLIGANEK AND
SPARREVOHN. BETHELS 12Z SOUNDING THIS MORNING IS NEARLY IDENTICAL
TO ANCHORAGE...SHOWING A NEARLY SATURATED SURFACE INVERSION AND
NEARLY NON-EXISTENT WINDS NEAR THE GROUND. THE LARGER-SCALE
WEATHER MAPS SHOW SURFACE RIDGING ALONG THE KUSKOKWIM RIVER
WITH A COL OVER THE NORTHERN ALASKA PENINSULA...BOTH FEATURES
WHICH RESULT IN LITTLE WIND. THE LIGHT WINDS...NEARLY CLEAR
SKIES AWAY FROM THE COAST...AND AS MINIMAL A SOLAR INFLUENCE
AS IT GETS ALL CONTINUE TO FAVOR PERSISTENT LOCALLY DENSE FOG
OVER SOUTHWEST ALASKA.

OVER THE BERING...A STATIONARY FRONT/CONVERGENCE ZONE IS IN PLACE
STRETCHING FROM THE EASTERN BERING ACROSS THE NORTHERN BERING.
THE RELATIVE LOW PRESSURE IS SANDWICHED BETWEEN A STRONG SIBERIAN
POLAR HIGH AND A SUBTROPICAL HIGH OVER THE CENTRAL PACIFIC.
THUS...STRONG OPPOSING WINDS ON EITHER SIDE OF THE ZONE ARE
PREVENTING ANYTHING MORE THAN VERY SLOW MOVEMENT OF THE ASSOCIATED
PRECIPITATION. SOUTH OF THIS ZONE...RELATIVELY WARM LOW LEVEL AIR
IS UNDERNEATH A STRONG UPPER LEVEL LOW ASSOCIATED WITH COLD UPPER
LEVEL AIR. THE RESULT IS STRONG INSTABILITY AND "POPCORN" LOOKING
CUMULUS AND OCCASIONAL CUMULONIMBUS OVER A LARGE AREA OF THE
BERING AND NORTH PACIFIC...INCLUDING ALL OF THE ALEUTIANS.
DETECTED LIGHTNING STRIKES HAVE BEEN FEW AND FAR BETWEEN...BUT
ARE INDICATIVE OF THE LEVEL OF INSTABILITY IN THAT AREA.

&&

.MODEL DISCUSSION...
THE MODELS REMAIN IN AGREEMENT ABOUT THE MOVEMENT AND INTENSITY
OF THE MAJOR FEATURES IMPACTING THE AOR. IN THE UPPER LEVELS...THE
PRIMARY PACIFIC JET STREAK REMAINS WELL SOUTH OF THE AREA...KEEPING
MOST OF THE STRONGER STORMS HEADING INTO THE PACIFIC NORTHWEST. A
DIGGING TROUGH OVER THE WESTERN BERING TUESDAY NIGHT HELPS AMPLIFY
A RIDGE OVER THE EASTERN BERING BY WEDNESDAY AFTERNOON...WITH SOME
MINOR DIFFERENCES IN THE INTENSITY OF THE JET STREAK THAT FORMS
DOWNSTREAM OF THE RIDGE OVER SOUTHWEST ALASKA. BIGGER DIFFERENCES
ARE ASSOCIATED WITH A STORM MOVING INTO THE WESTERN AND CENTRAL
ALEUTIANS WEDNESDAY MORNING...PRIMARILY AS A RESULT OF DIFFERENCES
IN STORM INTENSITY AND HOW FAVORABLE THE ATMOSPHERE BECOMES WITH
SUPPORTING A BROAD PRECIPITATION SHIELD. THE NAM WAS THE MODEL OF
CHOICE CONCERNING ALL OF THE ABOVE DIFFERENCES. THE NAMS HIGHER
RESOLUTION AND THE MIDDLE-OF-THE-ROAD SOLUTION WERE THE PRIMARY
FEATURES FAVORING IT OVER THE OTHER MODELS. CONFIDENCE IN THE
FORECAST IS HIGH CONSIDERING LOW MODEL SPREAD AND THE GENERALLY
QUIET WEATHER PATTERN.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
THERE IS WEAK FLOW ALOFT AND LOOKING FOR ISOLATED PATCHY FOG TO
REDEVELOP FOR THE ANCHORAGE BOWL...MAT-SU VALLEYS AND THE UPPER
WESTERN KENAI PENINSULA TONIGHT. WHILE UPSTREAM THE UPPER LEVELS
HAVE A WEAK SHORTWAVE THAT WILL MOVE THROUGH THE SOUTHCENTRAL
REGION THROUGH TUESDAY MORNING. THIS WILL BRING ISOLATED SNOW
SHOWERS TO THE AOR AND AID IN MIXING OUT THE PATCHY FOG IN THE
REGION. BY TUESDAY NIGHT THE PRESSURE GRADIENTS WILL INCREASE
RESULTING IN GUSTY GAP WINDS DEVELOPING THROUGH WHITTIER...PORTAGE
AND OTHER FAVORED TERRAIN GAPS ALONG THE GULF COAST.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
THE PATTERN WILL BE DOMINATED BY LOW PRESSURE THROUGH MID WEEK
KEEPING LOW CLOUDS OR FOG ACROSS THE SOUTHWEST. THE WEAKENING
SURFACE TROUGH OVER THE SOUTHWEST TONIGHT WILL BE REPLACED BY A
LOW MOVING INLAND FROM THE EASTERN BERING INTO THE THE KUSKOKWIM
DELTA TUESDAY. THIS LOW MOVES A WEAK FRONT TO THE WEST COAST
EARLY TUESDAY AND CONTINUES AN EASTWARD TRACK TO THE ALASKA
RANGE. THE FRONTAL BOUNDARY WEAKENS QUICKLY AS IT MOVES INLAND
BRINGING LIGHT SNOW ACCUMULATIONS MAINLY ACROSS WESTERN AREAS
OF BRISTOL BAY...ELSEWHERE ONLY ISOLATED TO SCATTERED SNOW
ACTIVITY IS EXPECTED. THE LIGHT WIND PATTERN INCREASES OUT OF
THE NORTH TO WEST ON WEDNESDAY BEHIND THE EXITING SURFACE LOW.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
WESTERLY FLOW WILL CONTINUE THROUGH WEDNESDAY MORNING WITH
SCATTERED TO NUMEROUS SHOWERS ALONG A SLIGHTLY UNSTABLE AIR MASS.
THE NEXT STRONG FRONT DEVELOPS IN THE NORTH PACIFIC TUESDAY NIGHT
WHICH WILL INCREASE EASTERLY WINDS ACROSS THE WESTERN AND CENTRAL
ALEUTIANS INTO EARLY WEDNESDAY MORNING. THE LOW CENTER TRACKS
NEAR KISKA INTO THE SOUTHERN BERING WEDNESDAY MORNING BRINGING
A DIRECTIONAL WIND CHANGE WITH GUSTY WINDS SPREADING ACROSS THE
EASTERN ALEUTIANS TO THE NORTHERN BERING BY THE AFTERNOON.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
MODELS ARE COMING INTO SOMEWHAT BETTER AGREEMENT WITH RESPECT
TO THE MIDWEEK BERING STORM...HOWEVER THERE IS STILL SOME
DISAGREEMENT ABOUT HOW FAR NORTH THE SURFACE LOW WILL TRACK
WEDNESDAY NIGHT BEFORE IT STARTS EAST ON THURSDAY. WITH THE VERY
STRONG JET STREAM TO THE SOUTH AM STILL FAVORING THE MORE SOUTHERN
SOLUTIONS WHICH WHICH WOULD BRING THE LOW ROUGHLY 100 TO 150 NM
INTO THE BERING BEFORE IT GETS CAUGHT UP IN THE BROADER WESTERLY
FLOW AND SWINGS EAST.

THE NEXT SIGNIFICANT POINT OF UNCERTAINTY CONCERNS THE FATE OF THE
NEXT ITERATION OF THIS LOW IN THE FRIDAY AND SATURDAY TIME PERIOD.
THE GFS BRINGS THE LOW INTO BRISTOL BAY WHICH CONTINUES TO SEEM
WELL TOO FAR NORTH. IN THE EC...A NORTH PACIFIC TROUGH SWINGING
AROUND THE SOUTH SIDE OF THE LARGE UPPER LOW SPINS UP INTO ANOTHER
STRONG SURFACE LOW WHICH LIFTS NORTH TO THE WESTERN TIP OF THE
ALASKA PENINSULA LATE THURSDAY NIGHT/EARLY FRIDAY MORNING. THE
CANADIAN MODEL HANGS ON TO THE BERING LOW AS THE MAIN SURFACE
FEATURE BUT TAKES IT MORE ON A SLIGHTLY MORE SOUTHERLY TREK EAST.
ADDITIONALLY IT LIFTS THE FEATURE UP OUT OF THE NORTH PACIFIC
FASTER AND AS MORE OF A TRIPLE POINT RATHER THAN CLOSED LOW. RIGHT
NOW I AM TENDING TO FAVOR THE EC SOLUTION AS THE MORE SOUTHERLY
SURFACE LOW (RELATIVE TO THE GFS TRACK) IS MORE CONSISTENT WITH
THE UPPER LEVEL JET LOCATION AND STRENGTH. ALSO WITH ALL THE ENERGY
AND COLD AIR ASSOCIATED WITH THE TROUGH SWINGING THROUGH THE NORTH
PACIFIC ON THURSDAY AM FAVORING THE IDEA OF THE WAVE RAPIDLY
DEVELOPING INTO A CLOSED LOW THURSDAY NIGHT.

IMPACT WISE...THE SOLUTION WITH THE STRONG SURFACE LOW SWINGING
ACROSS THE TIP OF THE ALASKA PENINSULA WILL BRING RATHER WINDY
CONDITIONS TO THAT AREA...SOUTHWEST ALASKA AND KODIAK ISLAND
THURSDAY NIGHT AND FRIDAY AS WELL AS SUSTAINING THE NORTHERLY
OUTFLOW GAP WINDS IN SOUTHCENTRAL ALASKA. THE MORE SOUTHERLY
POSITION OF THE LOW CENTER HOWEVER WILL LIMIT THE HEAVIER
PRECIPITATION TO COASTAL AREAS. A CONTINUED ACTIVE STORM TRACK
WILL BRING ADDITIONAL STRONG LOWS ACROSS THE ALEUTIANS AND INTO
THE BERING THROUGH EARLY NEXT WEEK...HOWEVER FURTHER EAST THEY
WILL TEND TO DROP SOUTH CROSSING THE GULF CLOSER TO 50N ONLY
MINIMALLY IMPACTING SOUTHERN SOUTHCENTRAL ALASKA.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE WARNING 132 150 155 165 176 177 178 185.
         HEAVY FREEZING SPRAY WARNING 129 180 181 185.

&&

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