Gale Warning 777, NWS Anchorage, AK

392 
FZAK62 PAFC 161240
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
340 AM AKST FRI DEC 16 2016

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.

PKZ499-170230-
340 AM AKST FRI DEC 16 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 953 MB LOW NEAR 58N 179E MOVES INTO EASTERN RUSSIA BY LATE
TONIGHT. ANOTHER 958 MB LOW NEAR 48N 178E MOVES TO 53N 173W AT 935
MB SAT NIGHT.

$$

PKZ411-170230-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
340 AM AKST FRI DEC 16 2016

...STORM WARNING TODAY...

.TODAY...W WIND 35 TO 50 KT. SEAS 21 TO 39 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.TONIGHT...SW WIND 30 TO 45 KT. SEAS 23 TO 31 FT SUBSIDING TO 16
TO 27 FT AFTER MIDNIGHT.
.SAT...SE WIND 15 TO 30 KT BECOMING E 25 TO 40 KT IN THE
AFTERNOON. SEAS 12 TO 20 FT. RAIN SHOWERS.
.SAT NIGHT...NE WIND 20 TO 35 KT. SEAS 11 TO 19 FT.
.SUN...N WIND 15 TO 30 KT. SEAS 13 TO 21 FT.
.MON...NW WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.TUE...W WIND 15 TO 25 KT. SEAS 9 TO 12 FT.

$$

PKZ412-170230-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
340 AM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW WIND 30 TO 45 KT. SEAS 24 TO 33 FT. WIDESPREAD RAIN
SHOWERS.
.TONIGHT...SW WIND 30 TO 45 KT. SEAS 26 TO 34 FT. RAIN SHOWERS.
.SAT...S WIND 15 TO 30 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 15 TO 25 FT.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 14 TO 22 FT.
.SUN...NE WIND 25 TO 40 KT. SEAS 14 TO 22 FT.
.MON...N WIND 15 TO 30 KT. SEAS 8 TO 12 FT.
.TUE...W WIND 10 TO 20 KT. SEAS 9 FT.

$$

PKZ413-170230-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
340 AM AKST FRI DEC 16 2016

...STORM WARNING TODAY AND SATURDAY...

.TODAY...SW WIND 40 TO 50 KT. SEAS 31 TO 37 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.TONIGHT...SW WIND 30 TO 45 KT DIMINISHING TO 20 TO 35 KT AFTER
MIDNIGHT. SEAS 20 TO 34 FT.
.SAT...E WIND 35 TO 50 KT. SEAS 16 TO 23 FT. RAIN SHOWERS.
.SAT NIGHT...NE WIND 35 TO 50 KT. SEAS 18 TO 24 FT.
.SUN...N WIND 20 TO 35 KT. SEAS 14 TO 22 FT.
.MON...NW WIND 20 TO 30 KT. SEAS 9 TO 14 FT.
.TUE...W WIND 15 TO 25 KT. SEAS 12 FT.

$$

PKZ414-170230-
BERING SEA OFFSHORE EAST OF 171W-
340 AM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY...

.TODAY...SW WIND 25 TO 40 KT. SEAS 14 TO 28 FT. RAIN SHOWERS.
.TONIGHT...SW WIND 25 TO 35 KT. SEAS 17 TO 28 FT.
.SAT...SW WIND 15 TO 25 KT BECOMING SE 30 TO 45 KT IN THE
AFTERNOON. SEAS 14 TO 22 FT. PATCHY FOG.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 13 TO 19 FT.
.SUN...SE WIND 20 TO 35 KT. SEAS 13 TO 21 FT.
.MON...N WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.TUE...W WIND 10 TO 20 KT. SEAS 6 TO 11 FT.

$$

437 
FZAK62 PAFC 170041
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
341 PM AKST FRI DEC 16 2016

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.

PKZ499-171430-
341 PM AKST FRI DEC 16 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 955 MB LOW NEAR 60N 180 MOVES INTO EASTERN RUSSIA BY LATE
TONIGHT. A 989 MB NORTH PACIFIC MOVES TO 52N 178W SAT AFTERNOON
AT 945 MB...THEN MOVES TO 54N 172W AT 948 MB SUN AFTERNOON.

$$

PKZ411-171430-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
341 PM AKST FRI DEC 16 2016

...STORM WARNING TONIGHT...

.TONIGHT...SW WIND 35 TO 50 KT DIMINISHING TO SOUTH 25 TO 35 KT
AFTER MIDNIGHT. SEAS 22 TO 31 FT SUBSIDING TO 16 TO 26 FT AFTER
MIDNIGHT.
.SAT...E WIND 20 TO 35 KT...EXCEPT NE 30 TO 45 KT S OF 56N. SEAS
11 TO 19 FT. RAIN.
.SAT NIGHT...NE WIND 20 TO 35 KT. SEAS 11 TO 19 FT. RAIN.
.SUN...N WIND 15 TO 30 KT. SEAS 13 TO 19 FT.
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS 10 TO 16 FT.
.MON...NW WIND 10 TO 20 KT. SEAS 8 TO 12 FT.
.TUE THROUGH WED...W WIND 10 TO 25 KT. SEAS 7 TO 12 FT.

$$

PKZ412-171430-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
341 PM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW WIND 30 TO 45 KT. SEAS 26 TO 32 FT.
.SAT...SW WIND 15 TO 30 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 15 TO 25 FT.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 13 TO 20 FT.
.SUN...NE WIND 30 TO 40 KT. SEAS 14 TO 20 FT.
.SUN NIGHT...N WIND 20 TO 35 KT. SEAS 11 TO 17 FT.
.MON...N WIND 15 TO 25 KT. SEAS 8 TO 12 FT.
.TUE THROUGH WED...W WIND 10 TO 20 KT. SEAS 7 TO 11 FT.

$$

PKZ413-171430-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
341 PM AKST FRI DEC 16 2016

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SW WIND 35 TO 45 KT DIMINISHING TO 20 TO 35 KT AFTER
MIDNIGHT. SEAS 20 TO 33 FT.
.SAT...E WIND 35 TO 50 KT. SEAS 16 TO 22 FT. RAIN.
.SAT NIGHT...NE WIND 35 TO 50 KT. SEAS 17 TO 22 FT. RAIN.
.SUN...N WIND 20 TO 35 KT. SEAS 16 TO 21 FT.
.SUN NIGHT...N WIND 20 TO 30 KT. SEAS 13 TO 18 FT.
.MON...NW WIND 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE THROUGH WED...SW WIND 15 TO 25 KT. SEAS 7 TO 12 FT.

$$

PKZ414-171430-
BERING SEA OFFSHORE EAST OF 171W-
341 PM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW WIND 25 TO 40 KT. SEAS 17 TO 28 FT.
.SAT...SW WIND 15 TO 25 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 14 TO 22 FT. PATCHY FOG.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 12 TO 17 FT. RAIN SHOWERS.
.SUN...SE WIND 20 TO 35 KT. SEAS 13 TO 19 FT.
.SUN NIGHT...SE WIND 15 TO 30 KT. SEAS 11 TO 19 FT.
.MON...NE WIND UP TO 20 KT. SEAS 6 TO 11 FT.
.TUE THROUGH WED...W WIND 10 TO 20 KT. SEAS 6 TO 11 FT.

$$

668 
FZAK62 PAFC 170331
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
631 PM AKST FRI DEC 16 2016

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.

PKZ499-171745-
631 PM AKST FRI DEC 16 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 955 MB LOW NEAR 60N 180 MOVES INTO EASTERN RUSSIA BY LATE
TONIGHT. A 989 MB NORTH PACIFIC MOVES TO 52N 178W SAT AFTERNOON
AT 945 MB...THEN MOVES TO 54N 172W AT 948 MB SUN AFTERNOON.

$$

PKZ411-171745-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
631 PM AKST FRI DEC 16 2016

...STORM WARNING TONIGHT...

.TONIGHT...SW WIND 35 TO 50 KT DIMINISHING TO SOUTH 25 TO 35 KT
AFTER MIDNIGHT. SEAS 22 TO 31 FT SUBSIDING TO 16 TO 26 FT AFTER
MIDNIGHT.
.SAT...E WIND 20 TO 35 KT...EXCEPT NE 30 TO 45 KT S OF 56N. SEAS
11 TO 19 FT. RAIN.
.SAT NIGHT...NE WIND 20 TO 35 KT. SEAS 11 TO 19 FT. RAIN.
.SUN...N WIND 15 TO 30 KT. SEAS 13 TO 19 FT.
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS 10 TO 16 FT.
.MON...NW WIND 10 TO 20 KT. SEAS 8 TO 12 FT.
.TUE THROUGH WED...W WIND 10 TO 25 KT. SEAS 7 TO 12 FT.

$$

PKZ412-171745-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
631 PM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW WIND 30 TO 45 KT. SEAS 26 TO 32 FT.
.SAT...SW WIND 15 TO 30 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 15 TO 25 FT.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 13 TO 20 FT.
.SUN...NE WIND 30 TO 40 KT. SEAS 14 TO 20 FT.
.SUN NIGHT...N WIND 20 TO 35 KT. SEAS 11 TO 17 FT.
.MON...N WIND 15 TO 25 KT. SEAS 8 TO 12 FT.
.TUE THROUGH WED...W WIND 10 TO 20 KT. SEAS 7 TO 11 FT.

$$

PKZ413-171745-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
631 PM AKST FRI DEC 16 2016

...STORM WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SW WIND 35 TO 45 KT DIMINISHING TO 20 TO 35 KT AFTER
MIDNIGHT. SEAS 20 TO 33 FT.
.SAT...E WIND 35 TO 50 KT. SEAS 16 TO 22 FT. RAIN.
.SAT NIGHT...NE WIND 35 TO 50 KT. SEAS 17 TO 22 FT. RAIN.
.SUN...N WIND 20 TO 35 KT. SEAS 16 TO 21 FT.
.SUN NIGHT...N WIND 20 TO 30 KT. SEAS 13 TO 18 FT.
.MON...NW WIND 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE THROUGH WED...SW WIND 15 TO 25 KT. SEAS 7 TO 12 FT.

$$

PKZ414-171745-
BERING SEA OFFSHORE EAST OF 171W-
631 PM AKST FRI DEC 16 2016

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...SW WIND 25 TO 40 KT. SEAS 17 TO 28 FT.
.SAT...SW WIND 15 TO 25 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 14 TO 22 FT. PATCHY FOG.
.SAT NIGHT...E WIND 30 TO 45 KT. SEAS 12 TO 17 FT. RAIN SHOWERS.
.SUN...SE WIND 20 TO 35 KT. SEAS 13 TO 19 FT.
.SUN NIGHT...SE WIND 15 TO 30 KT. SEAS 11 TO 19 FT.
.MON...NE WIND UP TO 20 KT. SEAS 6 TO 11 FT.
.TUE THROUGH WED...W WIND 10 TO 20 KT. SEAS 6 TO 11 FT.

$$

099 
FZAK62 PAFC 171242
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
342 AM AKST SAT DEC 17 2016

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.

PKZ499-180245-
342 AM AKST SAT DEC 17 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 961 MB LOW OVER EASTERN RUSSIA MOVES INLAND TODAY. ANOTHER 961
MB LOW NEAR 50N 178E MOVES TO 54N 178W AT 947 MB LATE
TONIGHT...THEN MOVES TO 55N 171W AT 958 MB LATE SUN NIGHT. AN
ASSOCIATED FRONT MOVES OVER THE CENTRAL BERING AND ALEUTIANS THIS
AFTERNOON...THEN MOVES OVER THE EASTERN BERING AND ALASKA
PENINSULA LATE TONIGHT...THEN DISSIPATES.

$$

PKZ411-180245-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
342 AM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...NE WIND 30 TO 45 KT. SEAS 13 TO 20 FT. WIDESPREAD RAIN
SHOWERS.
.TONIGHT...NE WIND 25 TO 40 KT. SEAS 12 TO 20 FT. RAIN SHOWERS.
.SUN...N WIND 20 TO 35 KT. SEAS 13 TO 19 FT. RAIN SHOWERS.
.SUN NIGHT...N WIND 20 TO 30 KT. SEAS 12 TO 17 FT.
.MON...N WIND 10 TO 25 KT. SEAS 9 TO 14 FT.
.TUE THROUGH WED...SW WIND UP TO 20 KT. SEAS 7 TO 12 FT.

$$

PKZ412-180245-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
342 AM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...S WIND 15 TO 30 KT BECOMING SE 30 TO 45 KT IN THE
AFTERNOON. SEAS 15 TO 23 FT.
.TONIGHT...E WIND 30 TO 45 KT. SEAS 13 TO 20 FT. RAIN SHOWERS.
.SUN...NE WIND 30 TO 45 KT. SEAS 16 TO 20 FT. RAIN SHOWERS.
.SUN NIGHT...NE WIND 25 TO 35 KT. SEAS 13 TO 18 FT.
.MON...N WIND 15 TO 25 KT. SEAS 7 TO 12 FT.
.TUE...NW WIND 10 TO 20 KT. SEAS 9 FT.
.WED...SW WIND UP TO 15 KT. SEAS 7 TO 11 FT.

$$

PKZ413-180245-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
342 AM AKST SAT DEC 17 2016

...STORM WARNING TODAY...

.TODAY...SE WIND 35 TO 50 KT. SEAS 17 TO 23 FT. RAIN.
.TONIGHT...E WIND 30 TO 45 KT. SEAS 18 TO 22 FT. RAIN SHOWERS.
.SUN...N WIND 25 TO 40 KT. SEAS 19 FT. RAIN SHOWERS.
.SUN NIGHT...N WIND 20 TO 35 KT. SEAS 13 TO 18 FT.
.MON...N WIND 15 TO 25 KT. SEAS 9 TO 14 FT.
.TUE...W WIND 20 KT. SEAS 10 TO 13 FT.
.WED...SW WIND 20 KT. SEAS 7 TO 11 FT.

$$

PKZ414-180245-
BERING SEA OFFSHORE EAST OF 171W-
342 AM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW WIND 15 TO 30 KT BECOMING SE 25 TO 40 KT IN THE
AFTERNOON. SEAS 14 TO 22 FT. PATCHY FOG.
.TONIGHT...E WIND 30 TO 45 KT. SEAS 12 TO 17 FT. RAIN SHOWERS.
.SUN...S WIND 30 TO 45 KT DIMINISHING TO 20 TO 35 KT IN THE
AFTERNOON. SEAS 14 TO 22 FT.
.SUN NIGHT...SE WIND 15 TO 30 KT. SEAS 12 TO 20 FT.
.MON...NE WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.TUE...NW WIND 15 TO 25 KT. SEAS 6 TO 11 FT.
.WED...W WIND UP TO 20 KT. SEAS 7 TO 10 FT.

$$

697 
FZAK62 PAFC 180030
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
330 PM AKST SAT DEC 17 2016

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.

PKZ499-181415-
330 PM AKST SAT DEC 17 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 945 MB LOW NEAR 53N 179W MOVES TO 55N 172W AT 947 MB SUN AFTERNOON...
THEN MOVES TO 55N 170W AT 965 MB MON AFTERNOON. THE ASSOCIATED
FRONT OVER THE CENTRAL BERING AND ALEUTIANS MOVES OVER THE EASTERN
BERING AND ALASKA PENINSULA LATE TONIGHT AND DISSIPATES.

$$

PKZ411-181415-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
330 PM AKST SAT DEC 17 2016

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 20 TO 35 KT. SEAS 10 TO 18 FT. RAIN SHOWERS.
.SUN...N WIND 20 TO 30 KT. SEAS 13 TO 18 FT. RAIN SHOWERS.
.SUN NIGHT...N WIND 20 TO 30 KT. SEAS 12 TO 17 FT. RAIN SHOWERS.
.MON...N WIND 15 TO 25 KT. SEAS 10 TO 15 FT.
.MON NIGHT...N WIND 10 TO 20 KT. SEAS 8 TO 11 FT.
.TUE...W WIND UP TO 20 KT. SEAS 8 TO 11 FT.
.WED...SW WIND UP TO 15 KT. SEAS 6 TO 9 FT.
.THU...W WIND UP TO 15 KT. SEAS 5 TO 8 FT.

$$

PKZ412-181415-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
330 PM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E WIND 25 TO 40 KT. SEAS 12 TO 20 FT. RAIN SHOWERS.
.SUN...NE WIND 30 TO 40 KT. SEAS 16 TO 21 FT. RAIN SHOWERS.
.SUN NIGHT...NE WIND 35 KT. SEAS 14 TO 20 FT.
.MON...NE WIND 20 TO 30 KT. SEAS 10 TO 15 FT.
.MON NIGHT...N WIND 15 TO 25 KT. SEAS 7 TO 11 FT.
.TUE...NW WIND UP TO 20 KT. SEAS 7 TO 10 FT.
.WED...SW WIND UP TO 15 KT. SEAS 7 TO 11 FT.
.THU...SE WIND UP TO 15 KT. SEAS 5 TO 8 FT.

$$

PKZ413-181415-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
330 PM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...E WIND 30 TO 45 KT. SEAS 16 TO 21 FT. RAIN SHOWERS.
.SUN...N WIND 20 TO 35 KT. SEAS 15 TO 19 FT. RAIN SHOWERS.
.SUN NIGHT...N WIND 20 TO 35 KT. SEAS 13 TO 19 FT. RAIN SHOWERS.
.MON...N WIND 20 TO 30 KT. SEAS 11 TO 15 FT.
.MON NIGHT...N WIND 15 TO 25 KT. SEAS 10 FT.
.TUE...NW WIND UP TO 20 KT. SEAS 9 TO 13 FT.
.WED THROUGH THU...S WIND UP TO 20 KT. SEAS 7 TO 11 FT.

$$

PKZ414-181415-
BERING SEA OFFSHORE EAST OF 171W-
330 PM AKST SAT DEC 17 2016

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...E WIND 25 TO 40 KT. SEAS 12 TO 17 FT. RAIN SHOWERS.
.SUN...SE WIND 25 TO 40 KT. SEAS 14 TO 22 FT.
.SUN NIGHT...SE WIND 20 TO 30 KT. SEAS 13 TO 21 FT.
.MON...E WIND 15 TO 30 KT. SEAS 8 TO 13 FT.
.MON NIGHT...NE WIND 10 TO 25 KT. SEAS 7 TO 12 FT.
.TUE...NW WIND 20 KT. SEAS 6 TO 10 FT.
.WED...W WIND UP TO 20 KT. SEAS 7 TO 10 FT.
.THU...S WIND UP TO 15 KT. SEAS 3 TO 8 FT.

$$

907 
FZAK62 PAFC 181204
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
304 AM AKST SUN DEC 18 2016

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.

PKZ499-190230-
304 AM AKST SUN DEC 18 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 946 MB LOW NEAR 54N 175W MOVES TO 55N 172W AT 958 MB LATE
TONIGHT...THEN MOVES TO 53N 171W AT 977 MB LATE MON NIGHT. AN
ASSOCIATED FRONT OVER THE EASTERN ALEUTIANS AND ALASKA PENINSULA
DISSIPATES TODAY

$$

PKZ411-190230-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
304 AM AKST SUN DEC 18 2016

.TODAY...N WIND 20 TO 30 KT. SEAS 12 TO 17 FT. WIDESPREAD RAIN
SHOWERS.
.TONIGHT...N WIND 25 KT. SEAS 11 TO 15 FT.
.MON...N WIND 15 TO 25 KT. SEAS 10 TO 13 FT.
.MON NIGHT...N WIND 10 TO 20 KT. SEAS 8 TO 12 FT.
.TUE...W WIND UP TO 15 KT. SEAS 5 TO 9 FT.
.WED THROUGH THU...W WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

PKZ412-190230-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
304 AM AKST SUN DEC 18 2016

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 25 TO 40 KT. SEAS 16 TO 19 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.TONIGHT...NE WIND 25 TO 35 KT. SEAS 14 TO 18 FT.
.MON...NE WIND 20 TO 30 KT. SEAS 11 TO 16 FT.
.MON NIGHT...N WIND 15 TO 25 KT. SEAS 8 TO 12 FT.
.TUE...NW WIND UP TO 20 KT. SEAS 5 TO 8 FT.
.WED...S WIND UP TO 10 KT. SEAS 3 TO 6 FT.
.THU...SE WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

PKZ413-190230-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
304 AM AKST SUN DEC 18 2016

.TODAY...NE WIND 15 TO 30 KT. SEAS 14 TO 18 FT. WIDESPREAD RAIN
SHOWERS AND SNOW SHOWERS.
.TONIGHT...N WIND 20 TO 30 KT. SEAS 12 TO 16 FT. RAIN SHOWERS AND
SNOW SHOWERS.
.MON...N WIND 15 TO 25 KT. SEAS 11 TO 15 FT.
.MON NIGHT...N WIND 15 TO 25 KT. SEAS 11 FT.
.TUE...NW WIND UP TO 20 KT. SEAS 6 TO 9 FT.
.WED THROUGH THU...S WIND 10 TO 20 KT. SEAS 5 TO 8 FT.

$$

PKZ414-190230-
BERING SEA OFFSHORE EAST OF 171W-
304 AM AKST SUN DEC 18 2016

...GALE WARNING TODAY...

.TODAY...E WIND 25 TO 40 KT EXCEPT SW 30 KT S OF THE PRIBILOF
ISLANDS. SEAS 13 TO 21 FT.
.TONIGHT...SE WIND 15 TO 30 KT. SEAS 13 TO 21 FT.
.MON...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.MON NIGHT...N WIND 15 TO 30 KT. SEAS 9 TO 12 FT.
.TUE...NW WIND 10 TO 25 KT. SEAS 6 TO 10 FT.
.WED...W WIND UP TO 20 KT. SEAS 3 TO 8 FT.
.THU...S WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

120 
FZAK62 PAFC 190031
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
331 PM AKST SUN DEC 18 2016

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.

PKZ499-191500-
331 PM AKST SUN DEC 18 2016
.SYNOPSIS FOR CENTRAL BERING SEA...
A 951 MB LOW NEAR 54N 174W MOVES TO 55N 171W AT 970 MB MON
AFTERNOON...THEN MOVES TO 57N 159W AT 984 MB TUE AFTERNOON. 

$$

PKZ411-191500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
331 PM AKST SUN DEC 18 2016

.TONIGHT...N WIND 20 TO 30 KT. SEAS 12 TO 16 FT. SNOW AND RAIN
SHOWERS.
.MON...N WIND 15 TO 25 KT. SEAS 11 TO 15 FT.
.MON NIGHT...N WIND 20 KT. SEAS 9 TO 12 FT.
.TUE...N WIND UP TO 15 KT. SEAS 6 TO 9 FT.
.TUE NIGHT...SW WIND UP TO 15 KT. SEAS 5 TO 8 FT.
.WED THROUGH FRI...W WIND UP TO 15 KT. SEAS 3 TO 8 FT.

$$

PKZ412-191500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
331 PM AKST SUN DEC 18 2016

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 25 TO 35 KT. SEAS 14 TO 19 FT.
.MON...NE WIND 20 TO 30 KT. SEAS 10 TO 15 FT.
.MON NIGHT...N WIND 15 TO 30 KT. SEAS 7 TO 12 FT.
.TUE...N WIND UP TO 20 KT. SEAS 7 FT.
.TUE NIGHT...NW WIND UP TO 15 KT. SEAS 7 FT.
.WED THROUGH THU...SE WIND UP TO 15 KT. SEAS 3 TO 7 FT.
.FRI...NE WIND UP TO 10 KT. SEAS 5 FT.

$$

PKZ413-191500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
331 PM AKST SUN DEC 18 2016

.TONIGHT...N WIND 15 TO 30 KT. SEAS 12 TO 17 FT. WIDESPREAD RAIN
SHOWERS AND SNOW SHOWERS.
.MON...N WIND 15 TO 30 KT. SEAS 11 TO 15 FT.
.MON NIGHT...N WIND 15 TO 30 KT. SEAS 12 FT.
.TUE...N WIND 10 TO 25 KT. SEAS 7 TO 11 FT.
.TUE NIGHT...W WIND 10 KT. SEAS 7 FT.
.WED THROUGH FRI...SW WIND UP TO 15 KT. SEAS 4 TO 7 FT.

$$

PKZ414-191500-
BERING SEA OFFSHORE EAST OF 171W-
331 PM AKST SUN DEC 18 2016

.TONIGHT...SE WIND 15 TO 30 KT. SEAS 12 TO 20 FT.
.MON...E WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.MON NIGHT...NE WIND 10 TO 25 KT. SEAS 8 TO 13 FT.
.TUE...N WIND 15 TO 25 KT. SEAS 7 TO 11 FT.
.TUE NIGHT...NW WIND 10 TO 25 KT. SEAS 6 TO 9 FT.
.WED...W WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.THU THROUGH FRI...SE WIND UP TO 15 KT. SEAS 3 TO 7 FT.

$$

765 
FZAK62 PAFC 191229
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
329 AM AKST MON DEC 19 2016

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.

PKZ499-200245-
329 AM AKST MON DEC 19 2016
.SYNOPSIS FOR CENTRAL BERING SEA...

A 960 MB LOW NEAR 54N 172W MOVES TO 55N 166W AT 975 MB LATE
TONIGHT...THEN BECOMES A TROUGH OF LOW PRESSURE AS IT MOVES INTO
THE GULF TUE NIGHT.

$$

PKZ411-200245-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE-
329 AM AKST MON DEC 19 2016

.TODAY...N WIND 15 TO 25 KT. SEAS 13 FT.
.TONIGHT...N WIND 20 KT. SEAS 8 TO 11 FT.
.TUE...NW WIND UP TO 15 KT. SEAS 5 TO 10 FT.
.TUE NIGHT...SW WIND UP TO 15 KT. SEAS 3 TO 7 FT.
.WED THROUGH THU...W WIND UP TO 20 KT. SEAS 4 TO 7 FT.
.FRI...NW WIND UP TO 15 KT. SEAS 3 TO 8 FT.

$$

PKZ412-200245-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N-
329 AM AKST MON DEC 19 2016

.TODAY...NE WIND 20 TO 30 KT. SEAS 10 TO 15 FT.
.TONIGHT...N WIND 15 TO 25 KT. SEAS 7 TO 12 FT.
.TUE...N WIND 10 TO 20 KT. SEAS 8 FT.
.TUE NIGHT...N WIND UP TO 15 KT. SEAS 5 TO 8 FT.
.WED THROUGH THU...S WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.FRI...E WIND UP TO 15 KT. SEAS 4 TO 7 FT.

$$

PKZ413-200245-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N-
329 AM AKST MON DEC 19 2016

.TODAY...N WIND 15 TO 25 KT. SEAS 10 TO 14 FT.
.TONIGHT...N WIND 15 TO 25 KT. SEAS 12 FT.
.TUE...N WIND 10 TO 20 KT. SEAS 9 FT.
.TUE NIGHT...W WIND UP TO 15 KT. SEAS 8 FT.
.WED THROUGH FRI...SW WIND UP TO 20 KT. SEAS 4 TO 7 FT.

$$

PKZ414-200245-
BERING SEA OFFSHORE EAST OF 171W-
329 AM AKST MON DEC 19 2016

.TODAY...E WIND 10 TO 25 KT. SEAS 8 TO 12 FT.
.TONIGHT...N WIND 10 TO 25 KT. SEAS 7 TO 11 FT.
.TUE...N WIND 15 TO 25 KT. SEAS 7 TO 10 FT.
.TUE NIGHT...NW WIND 10 TO 25 KT. SEAS 4 TO 9 FT.
.WED...SW WIND UP TO 20 KT. SEAS 3 TO 7 FT.
.THU...S WIND 10 TO 20 KT. SEAS 4 TO 7 FT.
.FRI...SE WIND UP TO 15 KT. SEAS 4 TO 7 FT.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
501 AM AKST Thu Dec 15 2016

.ANALYSIS AND UPPER LEVELS...
The main feature anchoring the flow pattern aloft is a complex low
center over Kamchatka this morning. An active 160 kt jet is
entering the base of the trough toward the western Aleutians. A
high amplitude/narrow ridge extends from the mid-latitude
northward over the mainland, and up into the arctic. Between these
two features is a washed-out front over the southwest mainland and
a trough to the west of the front, left over from the previous
upper low pressure. A vigorous shortwave trough is entering the
Kamchatka upper low, underneath the east Asian jet, and looks to
be the driver of active weather in the next couple days.

Sensible weather-wise, ridging over southcentral Alaska continues
to promote high pressure, clear sky, and frigid temperatures in
the Copper River Basin. The Cook Inlet region is mostly clear as
well, but some low stratus and patchy fog has formed around Knik
Arm and the Anchorage Bowl. The weakening front is bringing spotty
rain to the southwest mainland, while the next front out west is
beginning to impact the central Aleutians with rain and a solid
gale-force front.

&&

.MODEL DISCUSSION...
Once again, synoptics are well agreed upon, but the devil is in
the details. The first problem is a shortwave trough that will
progress from the southwest to the southcentral today. Orientation
and timing are pretty close, but strength and QPF are not well
agreed upon. The common theme to focus on is a quick shot of snow
this afternoon and evening with minor accumulation in most areas
around the Cook Inlet region.

Over the weekend, there is decent agreement on the aforementioned
trough, now entering the western Aleutians, bringing another shot
of snow to the region. The key with that storm will be upper
trough and surface low position, but right now moderate
accumulations look possible.

.AVIATION...
PANC...low stratus could persist longer than forecast as there is
no mechanism to mix it out. Upper ridging moving off to the east
should prevent the bank from growing too much larger, but light
winds and clear sky above, and low/late rising sun above could
promote a longer-lived deck.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2)...
Fog formed over the Anchorage bowl last evening, but expect it
to dissipate this morning as the upper ridge slides eastward and
clouds move in from the southwest. Weak isentropic lift will
develop in the mid to late afternoon hours, leading to lowering
clouds and flurries or light snow in the Cook Inlet region. Snow
will then become steadier and increase in intensity as an upper
level short-wave arrives during the evening hours. The wave does
sharpen slightly as it arrives, so have upped snow amounts from
previous forecast by about an inch. Overall, still only expecting
2 or 3 inches for most places in the Cook Inlet region. As the air
mass continues to warm expect snow to change to rain along the
southwest Kenai Peninsula by this evening. Meanwhile, snow will
continue to overspread most of the rest of Southcentral during
the overnight hours.

Another system will be fast on the heels of this first one, so
expect very little break. In fact, models are all keying on
another area of isentropic lift right behind the first short-
wave. This will bring some additional light precip to the Cook
Inlet to Susitna Valley corridor late tonight through Friday. Flow
will begin to back toward the southeast and strengthen ahead of
the next upper trough and surface front, so areas in the lee of
the Kenai and Chugach will dry out. A steady supply of warm air
advection, combined with downslope warming, will lead to a mix
of precip types Friday through Friday Night. Although there may
initially be some freezing rain as air above the surface warms,
do not expect it to last very long or cause any significant
problems. Looks like above freezing temps will make it is far
north as Anchorage and possibly all the way to southern portions
of the Mat-Su valleys by late Friday night. Downsloping will keep
much of this area dry, but do expect rain to fall across portions
of the Kenai Peninsula.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 and 2)...
Warmer air has already begun to displace the cold air mass that
has been entrenched across the region for the past couple of
weeks. Most locations have warmed up to the freezing mark with
just some locations in the Kuskokwim Valley holding onto colder
temperatures. These warmer temperatures should remain nearly
constant through Friday under cloudy conditions, then begin to
cool off again as colder air aloft advects from the west on Friday
afternoon. Snow and rain will begin to taper off into more of a
widespread showery regime this morning as the upper level wave
continues to weaken and push further eastward. There is some
potential for fog to develop this morning over low lying areas, as
the surface inversion strengthens from the warm air advection and
a push of moisture across the region.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2)...
The active weather pattern across the Bering Sea will continue
into the weekend. A strong area of low pressure over the far
western Aleutians will quickly track northward into the Western
Bering this evening, wrapping around a good amount of colder air
over the western Aleutians. The strongest winds from this system
will be observed along this area of colder air advecting over the
Western Aleutians later this morning through early Friday morning.
Ahead of the low, the initial front will quickly spread eastward
across the Central and Eastern Aleutians/Bering, and produce gale
to storm force winds with periods of moderate to heavy rainfall.
In addition, very impressive sea heights of 45 to 50 ft are
expected as a very favorable fetch and low level jet will provide
favorable conditions for seas to build. The highest seas are
expected over thew Western Aleutians and then the Pacific side of
the Aleutian Chain. Sea of 30 to 40 ft will be likely over the
eastern half of the Bering Sea on Friday.

&&

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

A pattern change remains on track beginning this weekend. An
approaching zonal jet will slam into the the ridge over mainland
AK on Sat, causing the ridge to weaken and move rapidly east. A
developing low pressure system in the Gulf will swing a front up
against the coast on Saturday bringing accumulating snow to most
of Southcentral Alaska. The Prince William Sound low looks to be
in a good position along with the upper trough to our west, with
cold advection up the Inlet. All signs of a classic accumulating
snow for the Anchorage area. However details can change between
now and then, stay tuned. While this is happening, a stacked low
pressure system dissipates over the northwest Bering. This low
will transfer energy to a new north Pacific low that moves with
the jet along the Alaska Peninsula to the Gulf of AK Sun into Mon.
The collapse of the blocking ridge will allow several systems
associated with the zonal jet to rapidly move along the AKpen and
into the Gulf of Alaska through mid week.

This will bring a moderating trend to temperatures to all of our
area of responsibility, as well as increased precipitation
chances, especially along the coastlines. Trends suggest there may
be ample snow opportunities inland by early next week as well.

For the Bering specifically, the main impacts will be strong
winds given the decent jet energy with the low pressure systems
and their associated fronts.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Hurricane 178.
         Storm 170 172 173 174 175 176 177 179 185.
         Gale 132 150 155 165 171 180 181.

&&

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