Gale Warning 301, NWS Anchorage, AK

241 
FZAK62 PAFC 041143
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
343 AM AKDT THU MAY 4 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.

PKZ499-050030-
343 AM AKDT THU MAY 4 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 MB LOW AT 47N 178E WILL MOVE TO 48N 174W AT 977 MB
TONIGHT...THEN MOVE TO 52N 172W AT 982 MB FRI NIGHT. AN 
ASSOCIATED FRONT OVER THE NORTH PACIFIC WILL MOVE NORTH AND EXTEND
ALONG THE ALEUTIANS AND SOUTHERN BERING TODAY THROUGH THU
NIGHT...THEN MOVE TO THE CENTRAL AND WESTERN BERING FRI THROUGH
FRI NIGHT.  

$$

PKZ411-050030-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
343 AM AKDT THU MAY 4 2017

.TODAY...E WIND 15 TO 30 KT. SEAS 6 TO 9 FT.
.TONIGHT...NE WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.FRI...NE WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 9 TO 15 FT.
.SAT THROUGH SUN...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.MON...E WIND 10 TO 20 KT. SEAS 5 FT.

$$

PKZ412-050030-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
343 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...SE WIND 15 KT BECOMING 10 TO 25 KT IN THE AFTERNOON. 
SEAS 7 FT.
.TONIGHT...E WIND 20 TO 35 KT. SEAS 6 TO 11 FT.
.FRI...NE WIND 25 TO 40 KT. SEAS 8 TO 16 FT.
.FRI NIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 16 FT.
.SAT THROUGH MON...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ413-050030-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
343 AM AKDT THU MAY 4 2017

...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.TONIGHT...E WIND 30 TO 40 KT. SEAS 9 TO 15 FT. 
WIDESPREAD RAIN SHOWERS.
.FRI...NE WIND 25 TO 40 KT. SEAS 14 TO 20 FT. RAIN.
.FRI NIGHT...NE WIND 25 TO 40 KT. SEAS 11 TO 19 FT.
.SAT THROUGH SUN...NW WIND 20 TO 35 KT. SEAS 8 TO 13 FT.
.MON...NE WIND UP TO 20 KT. SEAS 5 FT.

$$

PKZ414-050030-
BERING SEA OFFSHORE EAST OF 171W-
343 AM AKDT THU MAY 4 2017

...GALE WARNING TONIGHT AND FRIDAY...

.TODAY...E WIND 10 TO 25 KT. SEAS 3 TO 6 FT.
.TONIGHT...E WIND 25 TO 40 KT. SEAS 4 TO 9 FT.
.FRI...E WIND 25 TO 40 KT. SEAS 8 TO 13 FT.
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.SAT...NE WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.SUN THROUGH MON...NW WIND 10 TO 20 KT. SEAS 3 TO 6 FT.

$$

705 
FZAK62 PAFC 042328
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
328 PM AKDT THU MAY 4 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.

PKZ499-051330-
328 PM AKDT THU MAY 4 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 977 MB LOW NEAR 46N 180 WILL MOVE TO 51N 170W AT 979 MB FRI 
AFTERNOON...THEN MOVE TO 54N 171W AT 987 MB SAT AFTERNOON.

$$

PKZ411-051330-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
328 PM AKDT THU MAY 4 2017

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

.TONIGHT...NE WIND 15 TO 30 KT. SEAS 7 TO 14 FT.
.FRI...NE WIND 20 TO 35 KT. SEAS 9 TO 16 FT.
.FRI NIGHT...N WIND 20 TO 35 KT. SEAS 9 TO 16 FT.
.SAT...N WIND 15 TO 30 KT. SEAS 10 TO 15 FT.
.SAT NIGHT...N WIND 10 TO 25 KT. SEAS 8 TO 12 FT.
.SUN...NE WIND UP TO 20 KT. SEAS 5 TO 9 FT.
.MON THROUGH TUE...E WIND 10 TO 20 KT. SEAS 6 FT.

$$

PKZ412-051330-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
328 PM AKDT THU MAY 4 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E WIND 20 TO 35 KT. SEAS 6 TO 13 FT.
.FRI...NE WIND 25 TO 40 KT. SEAS 9 TO 17 FT.
.FRI NIGHT...NE WIND 25 TO 40 KT. SEAS 11 TO 17 FT.
.SAT...NE WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.SUN THROUGH TUE...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

PKZ413-051330-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
328 PM AKDT THU MAY 4 2017

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...E WIND 30 TO 40 KT. SEAS 9 TO 13 FT. RAIN.
.FRI...NE WIND 30 TO 45 KT. SEAS 13 TO 19 FT. RAIN SHOWERS.
.FRI NIGHT...NE WIND 25 TO 40 KT. SEAS 12 TO 20 FT.
.SAT...N WIND 20 TO 35 KT. SEAS 8 TO 16 FT.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN...NW WIND 10 TO 25 KT. SEAS 7 TO 10 FT.
.MON...NE WIND UP TO 20 KT. SEAS 5 FT.
.TUE...E WIND UP TO 15 KT. SEAS 5 FT.

$$

PKZ414-051330-
BERING SEA OFFSHORE EAST OF 171W-
328 PM AKDT THU MAY 4 2017

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...E WIND 25 TO 40 KT. SEAS 7 TO 13 FT. RAIN.
.FRI...E WIND 25 TO 40 KT. SEAS 8 TO 13 FT. RAIN.
.FRI NIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.SAT...E WIND 10 TO 20 KT. SEAS 5 TO 8 FT.
.SAT NIGHT...NE WIND 15 KT. SEAS 3 TO 7 FT.
.SUN THROUGH TUE...NW WIND 10 TO 20 KT. SEAS 3 TO 7 FT.

$$

161 
FZAK62 PAFC 051134
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
334 AM AKDT FRI MAY 5 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.

PKZ499-060100-
334 AM AKDT FRI MAY 5 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 977 MB COMPLEX LOW CENTERED NEAR 50N 174W WILL SPIN IN PLACE
WITH TWO CENTERS THROUGH SAT AFTERNOON THEN SHIFT TO 51N 163W LATE
SAT NIGHT. A 990 MB LOW WILL APPROACH 56N 156W LATE SAT NIGHT.

$$

PKZ411-060100-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
334 AM AKDT FRI MAY 5 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE WIND 20 TO 35 KT. SEAS 8 TO 16 FT.
.TONIGHT...N WIND 20 TO 35 KT. SEAS 10 TO 17 FT.
.SAT...N WIND 20 TO 35 KT. SEAS 10 TO 16 FT.
.SAT NIGHT...N WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.SUN...NE WIND 15 TO 30 KT. SEAS 5 TO 9 FT.
.MON THROUGH TUE...SE WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

PKZ412-060100-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
334 AM AKDT FRI MAY 5 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE WIND 25 TO 40 KT. SEAS 9 TO 17 FT.
.TONIGHT...NE WIND 30 TO 40 KT DIMINISHING TO 20 TO 35 KT AFTER
MIDNIGHT. SEAS 11 TO 17 FT. RAIN.
.SAT...NE WIND 20 TO 35 KT. SEAS 9 TO 16 FT.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN THROUGH MON...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.TUE...SE WIND UP TO 15 KT. SEAS 3 TO 8 FT.

$$

PKZ413-060100-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
334 AM AKDT FRI MAY 5 2017

...GALE WARNING THROUGH SATURDAY...

.TODAY...NE WIND 30 TO 45 KT. SEAS 12 TO 19 FT. RAIN.
.TONIGHT...NE WIND 25 TO 40 KT. SEAS 11 TO 19 FT. RAIN.
.SAT...N WIND 20 TO 35 KT. SEAS 10 TO 18 FT.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.SUN...N WIND 10 TO 25 KT. SEAS 6 TO 11 FT.
.MON THROUGH TUE...S WIND 10 TO 25 KT. SEAS 3 TO 8 FT.

$$

PKZ414-060100-
BERING SEA OFFSHORE EAST OF 171W-
334 AM AKDT FRI MAY 5 2017

...GALE WARNING TODAY...

.TODAY...E WIND 25 TO 40 KT. SEAS 8 TO 13 FT. RAIN.
.TONIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 11 FT.
.SAT...E WIND 20 KT. SEAS 4 TO 7 FT.
.SAT NIGHT...NE WIND UP TO 15 KT. SEAS 3 TO 6 FT.
.SUN THROUGH MON...NW WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.TUE...SW WIND 10 KT. SEAS 3 FT.

$$

398 
FZAK62 PAFC 052356
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
356 PM AKDT FRI MAY 5 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.

PKZ499-061415-
356 PM AKDT FRI MAY 5 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

A 977 MB LOW AT 51N 172W MOVES TO 56N 161W AT 991 MB BY SUN
AFTERNOON. THE ASSOCIATED FRONT MOVES OVER THE ALEUTIANS AND 
NORTHERN BERING INTO THE SOUTHWEST MAINLAND AND GULF OF ALASKA 
THROUGH SUN AFTERNOON. HIGH PRESSURE MOVES OVER THE WESTERN 
ALEUTIANS BY SUN AFTERNOON.

$$

PKZ411-061415-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
356 PM AKDT FRI MAY 5 2017

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 20 TO 35 KT. SEAS 10 TO 16 FT.
.SAT...N WIND 15 TO 30 KT. SEAS 10 TO 15 FT.
.SAT NIGHT...N WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.SUN...N WIND UP TO 20 KT. SEAS 5 TO 9 FT.
.SUN NIGHT...E WIND 10 TO 25 KT. SEAS 6 FT.
.MON...SE WIND 20 TO 35 KT. SEAS 6 TO 11 FT.
.TUE THROUGH WED...SE WIND 10 TO 20 KT. SEAS 7 TO 10 FT.

$$

PKZ412-061415-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
356 PM AKDT FRI MAY 5 2017

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...NE WIND 20 TO 35 KT. SEAS 10 TO 17 FT. SNOW AND RAIN.
.SAT...N WIND 25 TO 40 KT WITH GUSTS TO 50 KT. SEAS 9 TO 14 FT.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.SUN...N WIND 25 KT. SEAS 7 TO 10 FT.
.SUN NIGHT...N WIND 10 TO 25 KT. SEAS 6 TO 10 FT.
.MON...NE WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.TUE THROUGH WED...SE WIND UP TO 20 KT. SEAS 3 TO 8 FT.

$$

PKZ413-061415-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
356 PM AKDT FRI MAY 5 2017

...GALE WARNING THROUGH SATURDAY...

.TONIGHT...NE WIND 25 TO 40 KT. SEAS 10 TO 18 FT. RAIN.
.SAT...N WIND 25 TO 40 KT WITH GUSTS TO 50 KT. SEAS 9 TO 17 FT. RAIN
SHOWERS.
.SAT NIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN...NW WIND 15 TO 25 KT. SEAS 7 TO 11 FT.
.SUN NIGHT...NW WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.MON THROUGH WED...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ414-061415-
BERING SEA OFFSHORE EAST OF 171W-
356 PM AKDT FRI MAY 5 2017

.TONIGHT...E WIND 15 TO 30 KT. SEAS 6 TO 10 FT.
.SAT...E WIND 20 KT. SEAS 4 TO 8 FT.
.SAT NIGHT...N WIND 10 TO 15 KT. SEAS 4 FT. PATCHY FOG.
.SUN...N WIND 15 TO 25 KT. SEAS 4 TO 9 FT.
.SUN NIGHT...N WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.MON...N WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.TUE...SW WIND 10 KT. SEAS 3 FT.
.WED...SE WIND UP TO 15 KT. SEAS 3 TO 5 FT.

$$

985 
FZAK62 PAFC 061149
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
349 AM AKDT SAT MAY 6 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.

PKZ499-070130-
349 AM AKDT SAT MAY 6 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 981 MB LOW AT 53N 171W MOVES TO 52N 165W AT 988 MB BY SUN 
MORNING. A 987 MB LOW CROSSES THE ALASKA PENINSULA INTO BRISTOL
BAY SUN MORNING. THIS LOW THEN MERGES WITH THE PREVIOUS LOW AT 
997 MB NEAR 54N 163W MON MORNING. ANOTHER FRONT WILL APPROACH THE 
WESTERN ALEUTIANS BY MON MORNING.

$$

PKZ411-070130-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
349 AM AKDT SAT MAY 6 2017

.TODAY...N WIND 15 TO 30 KT. SEAS 10 TO 15 FT.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN...N WIND 10 TO 20 KT EXCEPT S 10 TO 20 KT W OF 175E.
SEAS 6 TO 9 FT.
.SUN NIGHT...E WIND 10 TO 25 KT. SEAS 6 FT.
.MON THROUGH TUE...SE WIND 20 TO 35 KT. SEAS 5 TO 10 FT.
.WED...E WIND 15 TO 25 KT. SEAS 7 TO 11 FT.

$$

PKZ412-070130-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
349 AM AKDT SAT MAY 6 2017

...GALE WARNING TODAY...

.TODAY...N WIND 20 TO 35 KT. SEAS 9 TO 14 FT.
.TONIGHT...N WIND 20 TO 30 KT. SEAS 7 TO 12 FT.
.SUN...N WIND 20 TO 30 KT. SEAS 9 FT.
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 10 FT.
.MON...NE WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.TUE THROUGH WED...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-070130-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
349 AM AKDT SAT MAY 6 2017

...GALE WARNING TODAY...

.TODAY...N WIND 20 TO 35 KT. SEAS 9 TO 16 FT. RAIN SHOWERS.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN...N WIND 25 KT. SEAS 8 TO 11 FT.
.SUN NIGHT...NW WIND 15 TO 30 KT. SEAS 7 TO 11 FT.
.MON...N WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.TUE THROUGH WED...SE WIND UP TO 20 KT. SEAS 4 TO 9 FT.

$$

PKZ414-070130-
BERING SEA OFFSHORE EAST OF 171W-
349 AM AKDT SAT MAY 6 2017

.TODAY...E WIND 10 TO 20 KT. SEAS 4 TO 8 FT.
.TONIGHT...N WIND 10 TO 20 KT. SEAS 3 TO 6 FT.
.SUN...N WIND 15 TO 30 KT. SEAS 4 TO 9 FT.
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 9 FT.
.MON...N WIND 10 TO 25 KT. SEAS 3 TO 8 FT.
.TUE...W WIND 10 KT. SEAS 3 TO 4 FT.
.WED...SE WIND UP TO 20 KT. SEAS 3 TO 6 FT.

$$

471 
FZAK62 PAFC 062348
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
348 PM AKDT SAT MAY 6 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.

PKZ499-071345-
348 PM AKDT SAT MAY 6 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 984 MB LOW AT 51N 167W MERGES WITH A 986 MB LOW NEAR 55N 152W 
THEN MOVES TO 57N 163W BY MIDDAY SUNDAY. THE ASSOCIATED FRONT 
DECAYS OVER THE ALEUTIANS AND BERING THROUGH MON AFTERNOON. THE 
LOW MOVES TO 52N 154W AT 999 MB BY MON AFTERNOON. A 997 MB LOW FORMS
NEAR 53N 173E WITH A FRONT OVER THE WESTERN ALEUTIANS.

$$

PKZ411-071345-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
348 PM AKDT SAT MAY 6 2017

.TONIGHT...N WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.SUN...N WIND 10 TO 20 KT. SEAS 6 TO 9 FT.
.SUN NIGHT...E WIND 10 TO 25 KT. SEAS 6 FT.
.MON...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.MON NIGHT...SE WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.TUE...SE WIND 10 TO 25 KT. SEAS 7 TO 10 FT.
.WED...E WIND 15 TO 25 KT. SEAS 7 TO 11 FT.
.THU...NE WIND 10 TO 25 KT. SEAS 6 TO 10 FT.

$$

PKZ412-071345-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
348 PM AKDT SAT MAY 6 2017

...GALE WARNING SUNDAY...

.TONIGHT...N WIND 15 TO 30 KT BECOMING 25 KT AFTER MIDNIGHT. SEAS
7 TO 12 FT.
.SUN...N WIND 20 TO 35 KT. SEAS 9 FT.
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 10 FT.
.MON...N WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.MON NIGHT...E WIND UP TO 15 KT. SEAS 3 TO 6 FT.
.TUE THROUGH THU...E WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

PKZ413-071345-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
348 PM AKDT SAT MAY 6 2017

...GALE WARNING SUNDAY...

.TONIGHT...N WIND 15 TO 30 KT BECOMING 25 KT AFTER MIDNIGHT. SEAS
8 TO 13 FT.
.SUN...NW WIND 20 TO 35 KT. SEAS 8 TO 11 FT.
.SUN NIGHT...NW WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.MON...N WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.MON NIGHT...SE WIND UP TO 20 KT. SEAS 4 TO 7 FT.
.TUE THROUGH THU...SE WIND UP TO 20 KT. SEAS 4 TO 9 FT.

$$

PKZ414-071345-
BERING SEA OFFSHORE EAST OF 171W-
348 PM AKDT SAT MAY 6 2017

.TONIGHT...N WIND 20 KT. SEAS 5 FT. PATCHY FOG.
.SUN...N WIND 15 TO 30 KT. SEAS 5 TO 10 FT. RAIN.
.SUN NIGHT...N WIND 10 TO 25 KT. SEAS 5 TO 10 FT.
.MON...NE WIND UP TO 20 KT. SEAS 4 TO 9 FT.
.MON NIGHT...NE WIND 10 KT. SEAS 3 TO 6 FT.
.TUE THROUGH THU...SE WIND UP TO 20 KT. SEAS 3 TO 7 FT.

$$

534 
FZAK62 PAFC 071146
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
346 AM AKDT SUN MAY 7 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.

PKZ499-080115-
346 AM AKDT SUN MAY 7 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
A 984 MB LOW AT 57N 155W MERGES WITH A 988 MB LOW NEAR 51N 164W 
THEN MOVES TO 54N 163W AT 991 MB BY SUNDAY EVENING. THE LOW THEN 
WEAKENS AS IT MOVES INTO THE GULF OF AK BY TUESDAY MORNING. A 996 
MB LOW FORMS NEAR 51N 171E PUSHING A FRONT INTO THE WESTERN 
ALEUTIANS MONDAY MORNING. THE LOW THEN FALLS APART OVER THE 
WESTERN BERING MONDAY NIGHT.

$$

PKZ411-080115-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
346 AM AKDT SUN MAY 7 2017

.TODAY...VARIABLE WIND UP TO 15 KT. SEAS 8 FT.
.TONIGHT...SE WIND 10 TO 25 KT. SEAS 6 FT.
.MON...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT. RAIN.
.MON NIGHT...SE WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TUE THROUGH THU...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

PKZ412-080115-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
346 AM AKDT SUN MAY 7 2017

.TODAY...N WIND 25 KT. SEAS 7 TO 10 FT.
.TONIGHT...N WIND 15 TO 25 KT. SEAS 6 TO 9 FT.
.MON...N WIND 10 TO 25 KT. SEAS 4 TO 8 FT.
.MON NIGHT...E WIND UP TO 15 KT. SEAS 3 TO 6 FT.
.TUE THROUGH THU...E WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

PKZ413-080115-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
346 AM AKDT SUN MAY 7 2017

.TODAY...NW WIND 20 TO 30 KT. SEAS 7 TO 10 FT.
.TONIGHT...NW WIND 15 TO 30 KT. SEAS 7 TO 11 FT.
.MON...N WIND 10 TO 25 KT BECOMING VARIABLE 15 KT IN THE AFTERNOON. 
SEAS 4 TO 9 FT.
.MON NIGHT...SE WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.TUE THROUGH THU...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ414-080115-
BERING SEA OFFSHORE EAST OF 171W-
346 AM AKDT SUN MAY 7 2017

.TODAY...N WIND 15 TO 30 KT. SEAS 4 TO 9 FT. RAIN.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 9 FT.
.MON...NE WIND 10 TO 20 KT. SEAS 4 TO 8 FT.
.MON NIGHT...E WIND 10 KT. SEAS 3 TO 5 FT.
.TUE THROUGH THU...SE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
429 AM AKDT Wed May 3 2017

.ANALYSIS AND UPPER LEVELS...
Our strong shortwave trough from yesterday has grown from a
compact disturbance into a beautiful sprawling low pressure
system stretching from the Canadian Rockies through the Yukon and
into the Gulf of Alaska. The potent disturbance acted to
propagate the whole longwave trough eastward, becoming the new
center of circulation of the longwave. The cloud shield associated
with the system has spread over all of Southcentral Alaska and
into the southwest mainland as well. At the surface, a late
evening scatterometer pass confirmed widespread gale force winds
along the front as well as a smaller embedded area of storm force
winds. Rain along the front is mainly confined to coastal areas,
but some echoes are appearing as some hydrometeors try to sneak
over mountains. They are contending with some pretty dry low-level
air around the Cook Inlet region. Down-Inlet and offshore flow
dominate the region while cloud cover and wind keep overnight
temperatures elevated in the 40s.

&&

.MODEL DISCUSSION...
Guidance is in great agreement with the current system as we are
beyond peak intensity, entering the weakening phase of the system.
There is still a little discrepancy with exact location as the
system weakens and slides east, but guidance paints a similar
picture. The next dynamic system to affect the pattern is entering
the western Bering/Aleutians currently. The major difference
between models with this system is triple point location, but
frontal position and strength are well agreed upon through late
week.

&&

.AVIATION...
PANC...Uncertainty in the TAF today will revolve around the
Turnagain wind and predominant wind direction. While it won't be
very strong, it will be pulled from both south and north as it
exits the Arm. The strong down-inlet gradient toward low pressure
will bend most of the wind southward, but clearing and heating up
in the Susitna Valley will promote the pulling of light southerlies
from the Arm this afternoon into the evening. With the two
competing forces, the predominant direction could flip around a
fair amount.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The deep low over the Gulf of Alaska will remain nearly stationary
as it gradually weakens through Thursday. Winds will remain
strongest on the northern side of the low center, across the
northern Gulf and into southern Prince William Sound. Easterly
flow combined with a series of upper waves rounding the low will
provide a steady supply of rain to western Prince William Sound,
with lighter and more occasional rain for the rest of the Gulf
coast and Kodiak Island.

For the rest of Southcentral the combination of elevated
instability and upper level waves rounding the low will trigger
showers, primarily over the mountains. The low levels are quite
dry and will remain so. Thus, as showers advect over the low lands
of Southcentral expect most of the moisture to evaporate before
hitting the ground. Most valleys will stay dry with just a few
sprinkles or an isolated shower over the next couple days. The low
will maintain fairly extensive mid to high clouds over the
region, though do expect some breaks of sun, particularly on
Thursday and over the Copper River Basin.

Lastly, with tight pressure gradients in place do expect localized
gap winds. Most notably and very typical for the season, expect
winds through Turnagain Arm, the Knik River Valley, and along the
Copper River.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Northerly flow will continue to increase across Southwest Alaska
this morning as the deep surface low in the Gulf tracks north.
Conditions will remain dry and breezy for much of the day with the
strongest north to northwest winds across the greater Bristol Bay
area and the higher elevations around the Kuskokwim Valley. A
north to south running band of showers will form in the late
afternoon/evening to the east of the Aleutian and Alaska Ranges in
response to deformation band associated with the low in the Gulf
rotating west across the mountains. Showers will persist in this
general area tonight through Thursday morning then shift to more
orographically enhanced showers along the mountains Thursday
afternoon and evening.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
Northwesterly winds will increase through the gaps and passes in
the Alaska Peninsula today, continue tonight and then diminish
Thursday as the low in the Gulf fills. A ridge over the central
and eastern Aleutians will shift east to the Alaska Peninsula and
eastern Bering Thursday and Thursday night. A surface low south of
the Aleutians will send a front into the central Aleutians
Thursday morning with a secondary frontal wave swinging into the
eastern Aleutians Thursday night and across Alaska Peninsula
Friday.

&&

.LONG TERM FORECAST (Days 3 through 7)...
The models remain in good agreement with the vertically stacked
weakening low over the Gulf of Alaska Friday weakening and exiting
to the southeast through Saturday. The big fall-like storm is
handled similarly by the models through the weekend, weakening the
low as it moves over the Alaska Peninsula and southwest of the
Gulf of Alaska. As we move into early next week the remnants of
the low drift into the Gulf of Alaska through Tuesday.

We expect a ridge to build in along the Gulf Coast through Friday
with the interior trough of weak low pressure fueling the somewhat
typical south and southeasterly gap and cross barrier winds across
the Chugach Mountains and Alaska Range.

Further west another low is on tap to enter the western Bering
Sea Sunday and Monday, although the models diverge on resolving
the location of the low and the associated front. Generally this
will still result in continued cloudy and wet weather for the
Central and Western Aleutians.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning 119 120 125 130 131 132 139 150 155 160 172
					  173 174 175 176 177 178.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...MTL
SOUTHCENTRAL ALASKA...SEB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...JR
LONG TERM...SS