Gale Warning 123, NWS Anchorage, AK

606 
FZAK62 PAFC 270008
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
308 PM AKST SUN FEB 26 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.

PKZ499-271415-
308 PM AKST SUN FEB 26 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A WEAK FRONT OVER THE
SOUTHERN BERING DISSIPATES TONIGHT. A FRONT MOVES INTO THE WESTERN
ALEUTIANS LATE TONIGHT AND PERSISTS THERE THROUGH TUE AFTERNOON.
HIGH PRESSURE OVER THE WESTERN BERING MOVES TO THE CENTRAL BERING
BY MON AFTERNOON...THEN MOVES TO THE NORTHERN AND EASTERN BERING
BY TUE AFTERNOON.

$$

PKZ411-271415-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
308 PM AKST SUN FEB 26 2017

...GALE WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...NE WIND 10 TO 25 KT. SEAS 7 TO 10 FT.
.MON...E WIND 15 TO 30 KT INCREASING TO 25 TO 40 KT 
IN THE AFTERNOON. SEAS 7 TO 12 FT.
.MON NIGHT...E WIND 25 TO 40 KT. SEAS 9 TO 16 FT.
.TUE...E WIND 30 TO 40 KT. SEAS 12 TO 17 FT.
.TUE NIGHT...E WIND 25 TO 35 KT. SEAS 12 TO 17 FT.
.WED THROUGH THU...E WIND 20 TO 35 KT. SEAS 9 TO 17 FT.
.FRI...NE WIND 10 TO 25 KT. SEAS 8 TO 16 FT.

$$

PKZ412-271415-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
308 PM AKST SUN FEB 26 2017

.TONIGHT...NW WIND 10 TO 20 KT. SEAS 8 TO 12 FT.
.MON...N WIND 10 TO 20 KT. SEAS 6 TO 10 FT.
.MON NIGHT...N WIND UP TO 20 KT BECOMING NE 15 TO 25 KT 
AFTER MIDNIGHT. SEAS 5 TO 8 FT. FREEZING SPRAY.
.TUE...NE WIND 15 TO 25 KT. SEAS 5 TO 9 FT.
.TUE NIGHT...E WIND 25 KT. SEAS 5 TO 9 FT.
.WED...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.THU THROUGH FRI...N WIND 10 TO 20 KT. SEAS 6 FT.

$$

PKZ413-271415-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
308 PM AKST SUN FEB 26 2017

.TONIGHT...N WIND 10 TO 25 KT. SEAS 9 FT. RAIN.
.MON...E WIND 15 TO 30 KT. SEAS 6 TO 10 FT.
.MON NIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TUE...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TUE NIGHT...E WIND 20 TO 30 KT. SEAS 7 TO 12 FT.
.WED THROUGH FRI...NE WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

PKZ414-271415-
BERING SEA OFFSHORE EAST OF 171W-
308 PM AKST SUN FEB 26 2017

...HEAVY FREEZING SPRAY WARNING MONDAY NIGHT...

.TONIGHT...NW WIND 20 KT. SEAS 5 TO 10 FT. FREEZING SPRAY 
NEAR  THE ICE EDGE. RAIN.
.MON...NW WIND 15 TO 25 KT. SEAS 4 TO 8 FT. FREEZING SPRAY 
N OF 57N.
.MON NIGHT...N WIND 15 TO 25 KT. SEAS 5 TO 8 FT. HEAVY FREEZING
SPRAY N OF 58N.
.TUE...N WIND 15 TO 25 KT. SEAS 4 TO 7 FT.
.TUE NIGHT...N WIND 25 KT. SEAS 4 TO 7 FT.
.WED THROUGH FRI...N WIND 20 TO 30 KT. SEAS 4 TO 8 FT.

$$

590 
FZAK62 PAFC 271248
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
348 AM AKST MON FEB 27 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.

PKZ499-280145-
348 AM AKST MON FEB 27 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A FRONT SWEEPS INTO
THE WESTERN GULF OF ALASKA AND DISSIPATES MON EVENING. HIGH
PRESSURE REMAINS OVER THE BERING SEA THROUGH WED MORNING. A
WEATHER FRONT MOVING INTO THE WESTERN ALEUTIANS TODAY REMAINS
NEARLY STATIONARY THROUGH WED MORNING.

$$

PKZ411-280145-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
348 AM AKST MON FEB 27 2017

...GALE WARNING THROUGH TUESDAY...

.TODAY...E WIND 15 TO 30 KT INCREASING TO 25 TO 40 KT IN THE
AFTERNOON. SEAS 7 TO 12 FT.
.TONIGHT...E WIND 25 TO 40 KT. SEAS 9 TO 17 FT. RAIN.
.TUE...E WIND 30 TO 40 KT. SEAS 12 TO 18 FT. RAIN.
.TUE NIGHT...E WIND 25 TO 35 KT. SEAS 12 TO 18 FT.
.WED THROUGH FRI...E WIND 20 TO 35 KT. SEAS 8 TO 16 FT.

$$

PKZ412-280145-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
348 AM AKST MON FEB 27 2017

.TODAY...N WIND 10 TO 20 KT. SEAS 6 TO 10 FT.
.TONIGHT...NE WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.TUE...NE WIND 15 TO 25 KT. SEAS 5 TO 8 FT. FREEZING SPRAY.
.TUE NIGHT...E WIND 15 TO 25 KT. SEAS 5 TO 9 FT.
.WED THROUGH FRI...NE WIND 10 TO 25 KT. SEAS 4 TO 9 FT.

$$

PKZ413-280145-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
348 AM AKST MON FEB 27 2017

...GALE WARNING TONIGHT AND TUESDAY...

.TODAY...E WIND 15 TO 30 KT. SEAS 6 TO 9 FT.
.TONIGHT...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.TUE...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.TUE NIGHT...E WIND 20 TO 30 KT. SEAS 7 TO 12 FT.
.WED THROUGH FRI...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.

$$

PKZ414-280145-
BERING SEA OFFSHORE EAST OF 171W-
348 AM AKST MON FEB 27 2017

...HEAVY FREEZING SPRAY WARNING TONIGHT AND TUESDAY...

.TODAY...NW WIND 15 TO 30 KT. SEAS 4 TO 8 FT. FREEZING SPRAY.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 5 TO 8 FT. HEAVY FREEZING
SPRAY.
.TUE...N WIND 15 TO 25 KT. SEAS 4 TO 7 FT. HEAVY FREEZING SPRAY.
.TUE NIGHT...NE WIND 25 KT. SEAS 4 TO 7 FT.
.WED THROUGH FRI...N WIND 15 TO 25 KT. SEAS 3 TO 8 FT.

$$

080 
FZAK62 PAFC 280004
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
304 PM AKST MON FEB 27 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.

PKZ499-281430-
304 PM AKST MON FEB 27 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A FRONT OVER THE
WESTERN AND CENTRAL ALEUTIANS PERSISTS AND REMAINS STATIONARY
THROUGH WED AFTERNOON. HIGH PRESSURE OVER THE CENTRAL AND NORTHERN
BERING PERSISTS THROUGH WED AFTERNOON.

$$

PKZ411-281430-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
304 PM AKST MON FEB 27 2017

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...E WIND 25 TO 40 KT. SEAS 9 TO 17 FT.
.TUE...E WIND 30 TO 40 KT. SEAS 11 TO 18 FT.
.TUE NIGHT...E WIND 35 KT. SEAS 12 TO 18 FT. SNOW AND RAIN.
.WED...E WIND 20 TO 30 KT. SEAS 11 TO 17 FT.
.WED NIGHT...E WIND 15 TO 30 KT. SEAS 9 TO 15 FT.
.THU THROUGH SAT...E WIND 15 TO 30 KT. SEAS 8 TO 13 FT.

$$

PKZ412-281430-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
304 PM AKST MON FEB 27 2017

.TONIGHT...NE WIND 10 TO 25 KT. SEAS 5 TO 8 FT.
.TUE...NE WIND 15 TO 25 KT. SEAS 4 TO 8 FT. FREEZING SPRAY.
.TUE NIGHT...E WIND 15 TO 25 KT. SEAS 4 TO 9 FT. FREEZING SPRAY.
.WED...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.WED NIGHT...E WIND UP TO 20 KT. SEAS 3 TO 8 FT.
.THU THROUGH SAT...NE WIND 10 TO 25 KT. SEAS 3 TO 7 FT.

$$

PKZ413-281430-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
304 PM AKST MON FEB 27 2017

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...E WIND 20 TO 35 KT. SEAS 6 TO 11 FT.
.TUE...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.TUE NIGHT...E WIND 20 TO 30 KT. SEAS 7 TO 12 FT.
.WED...E WIND 20 TO 30 KT. SEAS 8 TO 13 FT.
.WED NIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.THU THROUGH SAT...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT.

$$

PKZ414-281430-
BERING SEA OFFSHORE EAST OF 171W-
304 PM AKST MON FEB 27 2017

...HEAVY FREEZING SPRAY WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...N WIND 15 TO 25 KT. SEAS 6 FT. HEAVY FREEZING SPRAY N
OF 57N.
.TUE...N WIND 15 TO 25 KT. SEAS 6 FT. HEAVY FREEZING SPRAY N OF
56N.
.TUE NIGHT...NE WIND 25 KT. SEAS 4 TO 7 FT. HEAVY FREEZING SPRAY
N OF 56N.
.WED...N WIND 15 TO 25 KT. SEAS 3 TO 7 FT.
.WED NIGHT...N WIND 15 TO 25 KT. SEAS 3 TO 7 FT.
.THU THROUGH SAT...N WIND 15 TO 30 KT. SEAS 3 TO 8 FT.

$$

786 
FZAK62 PAFC 281210
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
310 AM AKST TUE FEB 28 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.

PKZ499-010215-
310 AM AKST TUE FEB 28 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. HIGH PRESSURE HOLDS
OVER THE BERING SEA THROUGH THU MORNING. A 993 MB SOUTH KAMCHATKA
LOW EXTENDS A FRONT INTO THE THE WESTERN ALEUTIANS THROUGH THU
MORNING. THE NORTH PACIFIC LOW MOVES TO 49N 177E AT 1013 MB BY THU
MORNING.

$$

PKZ411-010215-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
310 AM AKST TUE FEB 28 2017

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...E WIND 30 TO 40 KT. SEAS 11 TO 19 FT.
.TONIGHT...E WIND 30 TO 40 KT. SEAS 12 TO 19 FT. RAIN.
.WED...SE WIND 25 TO 35 KT. SEAS 11 TO 17 FT.
.WED NIGHT...SE WIND 15 TO 30 KT. SEAS 9 TO 15 FT.
.THU THROUGH SAT...E WIND 15 TO 30 KT. SEAS 9 TO 17 FT.

$$

PKZ412-010215-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
310 AM AKST TUE FEB 28 2017

.TODAY...NE WIND 15 TO 25 KT. SEAS 5 TO 8 FT. FREEZING SPRAY.
.TONIGHT...E WIND 15 TO 25 KT. SEAS 5 TO 8 FT. FREEZING SPRAY.
.WED...E WIND 10 TO 25 KT. SEAS 4 TO 9 FT. FREEZING SPRAY.
.WED NIGHT...E WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.THU THROUGH SAT...NE WIND UP TO 20 KT. SEAS 5 TO 10 FT.

$$

PKZ413-010215-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
310 AM AKST TUE FEB 28 2017

...GALE WARNING TODAY...

.TODAY...E WIND 20 TO 35 KT. SEAS 7 TO 12 FT.
.TONIGHT...E WIND 20 TO 30 KT. SEAS 7 TO 12 FT.
.WED...E WIND 20 TO 30 KT. SEAS 8 TO 13 FT.
.WED NIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.THU THROUGH SAT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ414-010215-
BERING SEA OFFSHORE EAST OF 171W-
310 AM AKST TUE FEB 28 2017

...HEAVY FREEZING SPRAY WARNING THROUGH WEDNESDAY...

.TODAY...N WIND 15 TO 25 KT. SEAS 6 FT. HEAVY FREEZING SPRAY.
.TONIGHT...NE WIND 25 KT. SEAS 5 TO 8 FT. HEAVY FREEZING SPRAY.
.WED...N WIND 15 TO 30 KT. SEAS 4 TO 8 FT. HEAVY FREEZING SPRAY.
.WED NIGHT...N WIND 15 TO 30 KT. SEAS 4 TO 8 FT.
.THU THROUGH SAT...N WIND 10 TO 25 KT. SEAS 3 TO 7 FT.

$$

882 
FZAK62 PAFC 010001
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
301 PM AKST TUE FEB 28 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.

PKZ499-011445-
301 PM AKST TUE FEB 28 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. HIGH PRESSURE HOLDS 
OVER THE BERING SEA THROUGH THU MORNING. A 993 MB SOUTH KAMCHATKA 
LOW EXTENDS A FRONT INTO THE WESTERN ALEUTIANS THROUGH THU MORNING. 
A 1009 MB NORTH PACIFIC LOW NEAR 46N 179E MOVES TO 50N 173E AT 
1015 MB BY THU NIGHT.

$$

PKZ411-011445-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
301 PM AKST TUE FEB 28 2017

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...E WIND 25 TO 35 KT. SEAS 11 TO 18 FT.
.WED...E WIND 25 TO 35 KT. SEAS 11 TO 17 FT.
.WED NIGHT...E WIND 20 TO 30 KT. SEAS 10 TO 16 FT.
.THU...E WIND 15 TO 30 KT. SEAS 9 TO 15 FT.
.THU NIGHT...SE WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.FRI THROUGH SUN...E WIND 15 TO 30 KT. SEAS 9 TO 17 FT.

$$

PKZ412-011445-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
301 PM AKST TUE FEB 28 2017

.TONIGHT...E WIND 15 TO 25 KT. SEAS 5 TO 8 FT. FREEZING SPRAY.
.WED...E WIND 15 TO 25 KT. SEAS 4 TO 8 FT. FREEZING SPRAY.
.WED NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.THU...NE WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.THU NIGHT...E WIND UP TO 20 KT. SEAS 3 TO 6 FT.
.FRI THROUGH SUN...NE WIND 10 TO 25 KT. SEAS 5 TO 10 FT.

$$

PKZ413-011445-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
301 PM AKST TUE FEB 28 2017

.TONIGHT...E WIND 20 TO 30 KT. SEAS 6 TO 11 FT.
.WED...E WIND 20 TO 30 KT. SEAS 8 TO 13 FT.
.WED NIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.THU...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.THU NIGHT...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI THROUGH SUN...NE WIND 15 TO 30 KT. SEAS 7 TO 12 FT.

$$

PKZ414-011445-
BERING SEA OFFSHORE EAST OF 171W-
301 PM AKST TUE FEB 28 2017

...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NE WIND 25 KT. SEAS 4 TO 7 FT. HEAVY FREEZING SPRAY 
N OF 56N.
.WED...N WIND 15 TO 25 KT. SEAS 4 TO 8 FT. FREEZING SPRAY.
.WED NIGHT...N WIND 15 TO 30 KT. SEAS 3 TO 8 FT. FREEZING SPRAY.
.THU...N WIND 10 TO 25 KT. SEAS 5 FT.
.THU NIGHT...N WIND 10 TO 25 KT. SEAS 3 TO 6 FT.
.FRI THROUGH SAT...N WIND 10 TO 25 KT. SEAS 3 TO 6 FT.
.SUN...N WIND 30 KT. SEAS 5 TO 8 FT.

$$

840 
FZAK62 PAFC 011220
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
320 AM AKST WED MAR 1 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.

PKZ499-020200-
320 AM AKST WED MAR 1 2017
.SYNOPSIS FOR CENTRAL BERING SEA...
BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. A 1006 MB LOW AT 47N
179E WILL SHIFT TO 49N 177E AT 1011 MB TONIGHT...THEN MOVE TO 50N
171E AT 1017 MB THU NIGHT. HIGH PRESSURE GRADUALLY STRENGTHENS
OVER THE BERING SEA THROUGH THU NIGHT. 

$$

PKZ411-020200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
320 AM AKST WED MAR 1 2017

...GALE WARNING TODAY...

.TODAY...E WIND 25 TO 35 KT. SEAS 11 TO 17 FT.
.TONIGHT...E WIND 20 TO 30 KT. SEAS 10 TO 16 FT.
.THU...E WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.THU NIGHT...SE WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.FRI THROUGH SUN...SE WIND 25 TO 40 KT. SEAS 9 TO 17 FT.

$$

PKZ412-020200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
320 AM AKST WED MAR 1 2017

.TODAY...E WIND 15 TO 25 KT. SEAS 4 TO 9 FT. FREEZING SPRAY.
.TONIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 8 FT.
.THU...E WIND 10 TO 15 KT. SEAS 3 TO 6 FT.
.THU NIGHT...E WIND UP TO 20 KT. SEAS 3 TO 6 FT.
.FRI THROUGH SAT...E WIND 25 TO 40 KT. SEAS 8 TO 13 FT.
.SUN...E WIND 10 TO 20 KT. SEAS 7 TO 12 FT.

$$

PKZ413-020200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
320 AM AKST WED MAR 1 2017

.TODAY...E WIND 20 TO 30 KT. SEAS 8 TO 13 FT.
.TONIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.THU...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.THU NIGHT...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI THROUGH SUN...E WIND 25 TO 40 KT. SEAS 9 TO 14 FT.

$$

PKZ414-020200-
BERING SEA OFFSHORE EAST OF 171W-
320 AM AKST WED MAR 1 2017

.TODAY...N WIND 15 TO 25 KT. SEAS 4 TO 8 FT. FREEZING SPRAY.
.TONIGHT...N WIND 15 TO 30 KT. SEAS 3 TO 8 FT. FREEZING SPRAY.
.THU...N WIND 10 TO 25 KT. SEAS 4 TO 7 FT. FREEZING SPRAY.
.THU NIGHT...N WIND 15 TO 30 KT. SEAS 3 TO 7 FT.
.FRI THROUGH SUN...NE WIND UP TO 20 KT. SEAS 3 TO 7 FT.

$$

904 
FZAK62 PAFC 020032
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
332 PM AKST WED MAR 1 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.

PKZ499-021530-
332 PM AKST WED MAR 1 2017
.SYNOPSIS FOR CENTRAL BERING SEA...

BOGOSLOF VOLCANO AT 54N 168W REMAINS ACTIVE. HIGH PRESSURE WILL
REMAIN OVER THE CENTRAL AND EASTERN BERING SEA. A FRONT OVER THE
SOUTHWEST BERING SEA WILL SLOWLY MOVE NORTHEAST THROUGH FRI 
AFTERNOON.

$$

PKZ411-021530-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
332 PM AKST WED MAR 1 2017

.TONIGHT...SE WIND 20 TO 30 KT. SEAS 10 TO 15 FT.
.THU...E WIND 15 TO 30 KT. SEAS 9 TO 15 FT.
.THU NIGHT...SE WIND 20 TO 30 KT. SEAS 9 TO 15 FT. SNOW.
.FRI...E WIND 20 TO 35 KT. SEAS 9 TO 15 FT.
.FRI NIGHT...E WIND 20 TO 35 KT. SEAS 9 TO 16 FT.
.SAT THROUGH SUN...SE WIND 15 TO 30 KT. SEAS 11 TO 17 FT.
.MON...E WIND UP TO 20 KT. SEAS 8 TO 16 FT.

$$

PKZ412-021530-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
332 PM AKST WED MAR 1 2017

.TONIGHT...E WIND 15 TO 20 KT. SEAS 3 TO 7 FT. FREEZING SPRAY.
.THU...E WIND 10 TO 20 KT. SEAS 3 TO 6 FT.
.THU NIGHT...E WIND 10 TO 20 KT. SEAS 3 TO 7 FT.
.FRI...E WIND 15 TO 30 KT. SEAS 3 TO 8 FT.
.FRI NIGHT...E WIND 20 TO 35 KT. SEAS 6 TO 11 FT.
.SAT THROUGH SUN...E WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.MON...NE WIND UP TO 15 KT. SEAS 5 TO 9 FT.

$$

PKZ413-021530-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
332 PM AKST WED MAR 1 2017

.TONIGHT...E WIND 15 TO 30 KT. SEAS 7 TO 12 FT. FREEZING SPRAY E OF
175W.
.THU...E WIND 15 TO 30 KT. SEAS 6 TO 11 FT.
.THU NIGHT...E WIND 15 TO 30 KT. SEAS 5 TO 10 FT.
.FRI...SE WIND 25 TO 40 KT. SEAS 7 TO 12 FT.
.FRI NIGHT...SE WIND 25 TO 40 KT. SEAS 9 TO 14 FT.
.SAT THROUGH SUN...E WIND 15 TO 30 KT. SEAS 9 TO 14 FT.
.MON...NE WIND 10 TO 20 KT. SEAS 8 TO 12 FT.

$$

PKZ414-021530-
BERING SEA OFFSHORE EAST OF 171W-
332 PM AKST WED MAR 1 2017

...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...N WIND 15 TO 30 KT. SEAS 3 TO 7 FT. HEAVY FREEZING SPRAY N
OF 56N.
.THU...N WIND 10 TO 25 KT. SEAS 5 FT. FREEZING SPRAY.
.THU NIGHT...N WIND 15 TO 25 KT. SEAS 3 TO 6 FT. FREEZING SPRAY IN
THE EVENING.
.FRI...NE WIND UP TO 15 KT. SEAS 3 TO 4 FT.
.FRI NIGHT...E WIND UP TO 20 KT. SEAS 0 TO 4 FT.
.SAT THROUGH MON...N WIND 10 TO 25 KT. SEAS 3 TO 8 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
335 PM AKST Sat Feb 25 2017

.ANALYSIS AND UPPER LEVELS...
A broad upper ridge extends from the northeast Pacific to over
Southcentral Alaska. Stable conditions associated with this
feature strengthened inversions and led to stratus and fog across
much of Cook Inlet, western Kenai Pen, Anchorage Bowl, and Mat-Su
Valleys this morning. Conditions have since improved across the
Kenai Pen and Mat Valley. However, areas of low stratus and dense
fog continued into the afternoon hours across portions of the
Anchorage Bowl. Generally fair skies were observed elsewhere
across Southcentral with local outflow winds across western
Prince William Sound and through Thompson Pass.

Broad southwesterly flow aloft and an associated surface frontal
trough dominated the weather across much of the eastern Bering
Sea, Southwest Alaska, and the AK Pen. Rain and snow were observed
across the Delta with snow encroaching on the remainder of the SW
Mainland. Strong southwesterly winds were evident across much of
the Bering Sea, central/eastern Aleutians, to the Delta/Western
Capes of Southwest Alaska.

&&

.MODEL DISCUSSION (through Monday afternoon)...
Models overall are in good agreement with a few minor differences.
Generally used the NAM/GFS in the west with the GFS and hand edits
in the east.

&&

.AVIATION...
PANC...Stratus and fog will likely be slow to clear this afternoon
and may allow IFR conditions to linger into the evening hours.
The inversion responsible for these conditions weakens some
tonight with increasing upper level clouds. The weakening
inversion and a little more mixing tonight may help to improve
visibilities in fog. However, there is still the strong
probability of MVFR/IFR ceilings to continue into Sunday morning.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
The ridge aloft building into Southcentral Alaska today will
flatten tonight through Sunday allowing the flow aloft to turn
more westerly. While the flat ridge will be less favorable for
the formation of fog tonight, there is not any mechanism in place
to scour out the lower levels yet, so expecting to see patchy and
less dense fog to redevelop in similar locations to last night.
However, southwesterly winds pushing into Kachemak Bay and
southern Cook inlet should keep fog out of those areas.

A cold upper level trough sweeping in from the west Monday afternoon
and evening will bring a substantial increase in northwesterly
winds and drop in temperatures as well as quickly scouring out the
moist lower layers of the atmosphere. Precipitation associated
with this trough will be brief and focused mainly along west
facing slopes where snow showers will be orographically enhanced.
Strong westerly gap winds through Portage Valley, Whittier and
Passage Canal as well as northerly gaps winds through Broad Pass,
Thompson Pass and Resurrection Bay will develop Monday night and
increase through Tuesday. Additionally, strong northwesterly flow
through Barrens and out of gaps and passes along Shelikof Strait
and southern Cook Inlet will build as strong cold advection pushes
in behind the upper level trough.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
A warm and moist front pushing through the Kuskokwim Delta and
into the Bristol Bay area this evening will bring a mixture of
rain and snow to the area, as well as some gusty onshore winds.
Precipitation in the delta will remain as snow with a few pockets
of rain mixed in during the early evening hours. Even though
warmer air is advecting into the region from the Eastern Bering,
it will pass over the ice along the Southwest coast. This has been
causing the air pushing into the Southwest coast to come in
slightly cooler than expected, and keeping conditions cold enough
to support snow. The rest of Southwest AK will remain cool enough
to continue to support snow as the front continues to stretch
further inland and slowly move southeast. As the front moves
southeast, temperatures across the area will start to cool tonight
and allow for more snow to fall. Some warming limited to the
Bristol Bay zone will cause snow to mix with rain Sunday, but by
Sunday night and into Monday morning, cold air filters back into
the region from the Northwest. However by that time, only
diminishing snow showers are expected to be lingering over the
area.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The front extending across the central and eastern portions of
the Aleutians and Bering will slowly weaken and push southward
through the remainder of the weekend. This will keep a mix of rain
and snow along with small craft to gale force gusts over these
areas through Sunday night. Colder northerly flow wrapping around
the high pressure building over the Western and Central Bering
Sunday night into Monday. This will begin to push the above
mentioned front into the Northern pacific and cause temperatures
over the area to drop, making snow the more dominant precipitation
type into early next week.

&&

.LONG TERM FORECAST (Days 3 through 7)...
After cold air filters through the southern mainland early next
week it remains in place through Friday with the upper level
trough situated over the mainland and ridging in place over the
Bering. Offshore northerly flow will be gusty at times for
channeled terrain, especially along the coasts, through the end
of the week as the upper low provides a continuous tap from the
Arctic. All operational models were in good agreement through the
long range forecast, although the 12Z GFS started to break the
Bering ridge down toward Friday which was an outlier on this
solution. Only minor changes were needed today with a weighted
forecast toward the ECMWF and it's ensembles.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Gale Warning 120 131 185.

&&

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