Gale Warning 922, NWS Anchorage, AK

511 
FZAK61 PAFC 100033
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST FRI DEC 9 2011

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-101500-
400 PM AKST FRI DEC 9 2011
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 1010 MB LOW NEAR 60N 145W WILL DRIFT EAST AND DISSIPATE FRI NIGHT.
A STRONG FRONT WILL MOVE INTO THE WESTERN GULF SAT. A 990 MB LOW WILL
DEVELOP NEAR 58N 150W EARLY SUN. 

$$

PKZ351-101500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST FRI DEC 9 2011

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...W WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS 12
FT. 
.SAT...SW WIND 20 KT BECOMING S 35 KT IN THE AFTERNOON. SEAS 12 TO 
16 FT. 
.SAT NIGHT...S WIND 45 KT DIMINISHING TO 35 KT AFTER MIDNIGHT. SEAS
18 FT. RAIN.
.SUN...SW WIND 30 KT. SEAS 15 FT. 
.SUN NIGHT...W WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 15 FT. 
.TUE...S WIND 25 KT. SEAS 10 FT. 
.WED...SE WIND 30 KT. SEAS 10 FT.  

$$

PKZ352-101500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST FRI DEC 9 2011

...STORM WARNING SATURDAY...

.TONIGHT...W WIND 25 KT. SEAS 14 FT. 
.SAT...SW WIND 20 KT INCREASING TO S 40 TO 50 KT IN THE AFTERNOON.
SEAS 12 FT TO 18 FT. RAIN.
.SAT NIGHT...S WIND 45 KT BECOMING SW 35 KT AFTER MIDNIGHT. SEAS
18 FT. RAIN.
.SUN...W WIND 30 KT. SEAS 14 FT. 
.SUN NIGHT...W WIND 25 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 14 FT. 
.TUE...S WIND 25 KT. SEAS 12 FT. 
.WED...SE WIND 30 KT. SEAS 15 FT.  

$$

505 
FZAK61 PAFC 101224
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SAT DEC 10 2011

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-110300-
400 AM AKST SAT DEC 10 2011
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...A STRONG FRONT WILL MOVE
INTO THE WESTERN GULF THIS AFTERNOON. A 994 MB LOW WILL DEVELOP NEAR
58N 146W SUN MORNING AND WILL MOVE TO 60N 145W AT 990 MB SUN NIGHT. 

$$

PKZ351-110300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SAT DEC 10 2011

...GALE WARNING THROUGH SUNDAY...

.TODAY...SW WIND 20 KT BECOMING S 35 KT IN THE AFTERNOON. SEAS
10 FT BUILDING TO 14 FT. RAIN.
.TONIGHT...S WIND 40 KT. SEAS 18 FT. RAIN.
.SUN...S WIND 35 KT BECOMING W 25 KT IN THE AFTERNOON. SEAS 18 FT
SUBSIDING TO 12 FT. RAIN.
.SUN NIGHT...W WIND 35 KT. SEAS 14 FT. 
.MON...W WIND 25 KT. SEAS 14 FT. 
.TUE...S WIND 25 KT. SEAS 10 FT. 
.WED...SE WIND 30 KT. SEAS 14 FT.  

$$

PKZ352-110300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SAT DEC 10 2011

...STORM WARNING TODAY...

.TODAY...SW WIND 35 KT BECOMING S 50 KT IN THE AFTERNOON. SEAS
10 FT BUILDING TO 18 FT. RAIN. 
.TONIGHT...S WIND 45 KT BECOMING SW 35 KT AFTER MIDNIGHT. SEAS
18 FT. RAIN.
.SUN...SW WIND 35 KT. SEAS 16 FT. RAIN.
.SUN NIGHT...W WIND 30 KT. SEAS 14 FT. 
.MON...W WIND 25 KT. SEAS 13 FT. 
.TUE...S WIND 30 KT. SEAS 12 FT. 
.WED...SE WIND 30 KT. SEAS 18 FT.  

$$

918 
FZAK61 PAFC 110032
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST SAT DEC 10 2011

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-111500-
400 PM AKST SAT DEC 10 2011
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A STRONG FRONT WILL MOVE INTO THE WESTERN GULF SAT NIGHT THEN BECOME
STATIONARY OVER THE CENTRAL GULF SUNDAY. A 993 MB LOW OVER THE
CENTRAL NORTH PACIFIC WILL STRENGTHEN TO 969 MB NEAR 58N 151W SUN
AFTERNOON THEN WILL WEAKEN TO 975 MB NEAR 60N 145W THEN MOVE INLAND
MON MORNING.

$$

PKZ351-111500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST SAT DEC 10 2011

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 30 TO 40 KT. SEAS BUILDING TO 12 TO 18 FT. RAIN.
.SUN...S WIND 25 TO 35 KT DIMINISHING TO 15 TO 25 KT IN THE
AFTERNOON. SEAS 15 FT. RAIN.
.SUN NIGHT...SW WIND INCREASING TO 35 TO 45 KT BY MIDNIGHT. SEAS 18
FT. 
.MON...W WIND 40 KT. SEAS 22 FT. 
.MON NIGHT...W WIND 25 KT. SEAS 20 FT. 
.TUE...S WIND 25 KT. SEAS 13 FT. 
.WED...SE WIND 30 KT. SEAS 14 FT. 
.THU...SE WIND 30 KT. SEAS 16 FT.  

$$

PKZ352-111500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST SAT DEC 10 2011

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S WIND 35 TO 45 KT. SEAS 18 FT. RAIN.
.SUN...SW WIND 40 KT. SEAS 15 FT. RAIN.
.SUN NIGHT...W WIND 40 KT. SEAS 16 FT. 
.MON...W WIND 35 KT. SEAS 20 FT. 
.MON NIGHT...W WIND 25 KT. SEAS 19 FT. 
.TUE...S WIND 30 KT. SEAS 14 FT. 
.WED...SE WIND 30 KT. SEAS 16 FT. 
.THU...S WIND 30 KT. SEAS 18 FT.  

$$

758 
FZAK61 PAFC 111254
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SUN DEC 11 2011

OFFSHORE WATERS FORECAST FOR THE GULF OF ALASKA WEST OF 144W

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.

PKZ399-120300-
400 AM AKST SUN DEC 11 2011
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...A STRONG FRONT WILL BECOME
STATIONARY OVER THE CENTRAL GULF TODAY. A 981 MB LOW OVER THE CENTRAL
NORTH PACIFIC WILL STRENGTHEN TO 967 MB NEAR 57N 151W THIS AFTERNOON
THEN WILL WEAKEN TO 973 MB NEAR 60N 147W LATE TONIGHT THEN MOVE
INLAND MON MORNING. 

$$

PKZ351-120300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SUN DEC 11 2011

...STORM WARNING THROUGH MONDAY...

.TODAY...SE WIND 40 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS
BUILDING 15 TO 20 FT. RAIN.
.TONIGHT...SW WIND 55 KT. SEAS 26 FT. 
.MON...W WIND 50 KT DIMINISHING TO 40 KT IN THE AFTERNOON. SEAS
26 FT. 
.MON NIGHT...W WIND 30 KT. SEAS 20 FT. 
.TUE...S WIND 20 KT. SEAS 12 FT. 
.WED...SE WIND 25 KT. SEAS 13 FT. 
.THU...SE WIND 30 KT. SEAS 17 FT.  

$$

PKZ352-120300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SUN DEC 11 2011

...STORM WARNING TONIGHT...

.TODAY...S WIND 45 KT. SEAS 15 TO 20 FT. RAIN.
.TONIGHT...SW WIND 55 KT. SEAS 26 FT. 
.MON...W WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
24 FT. 
.MON NIGHT...W WIND 25 KT. SEAS 19 FT. 
.TUE...S WIND 30 KT. SEAS 13 FT. 
.WED...SE WIND 30 KT. SEAS 15 FT. 
.THU...SE WIND 25 KT. SEAS 18 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST THU DEC 8 2011

.ANALYSIS AND UPPER LEVELS...THE UPPER LEVEL PATTERN OVER THE STATE
REMAINS LARGELY UNCHANGED. THE LONG WAVE TROUGH OVER THE KAMCHATKA
PENINSULA REMAINS ENTRENCHED. THE UPPER LEVEL RIDGE AXIS HAS PUSHED A
LITTLE FARTHER EASTWARD FROM YESTERDAY LEAVING ZONAL UPPER LEVEL FLOW
OVER THE ALEUTIANS WHICH TURNS NORTHEAST OVER THE GULF OF ALASKA.
AT THE SURFACE THE LOW NEAR THE BERING STRAIT WILL CONTINUE TO MOVE
NORTHWARD AND WEAKEN AS THE NEXT LARGE LOW IS RAPIDLY STRENGTHENING
SOUTHWEST OF ATTU. A FRONT EXTENDING OUT OF THE BERING STRAIT FRONT
IS OVER THE KUSKOKWIM DELTA AND BRISTOL BAY REGION WHICH IS MOVING
EASTWARD INTO SOUTH CENTRAL ALASKA OVERNIGHT. FARTHER EAST THE FRONT
THAT WAS BRINGING PRECIPITATION INTO SOUTH CENTRAL ALASKA YESTERDAY
HAS MOVED NEAR THE ALCAN BORDER.

.MODEL DISCUSSION...MODELS ARE DOING WELL IN THE SHORT TERM. THEY
HAVE COALESCED INTO A REASONABLE COMMON SOLUTION WITH THE LARGE STORM
IN THE BERING SEA. WHAT WILL BE AN INTERESTING DEVELOPMENT TO WATCH
IS THE FORMATION OF A LOW THAT THE NAM GFS AND ECMWF HAVE IN THE
NORTHERN GULF ON SUNDAY. THESE MODELS EACH HAVE A LOW THERE BUT THE
GFS AND NAM DEVELOP IT ABOUT 200 MILES SOUTHWEST OF KODIAK ISLAND ON
SATURDAY WHILE THE ECMWF DEVELOPS THE MAIN LOW WELL SOUTHWEST OF THE
AREA AND THEN MOVES IT VERY QUICKLY INTO THE GULF. THE NAM/GFS
SOLUTION LOOKS LIKE THE MORE REASONABLE SOLUTION FOR THIS LOW.

.SHORT TERM FORECAST...THE FRONT IN THE BRISTOL BAY AND KUSKOKWIM
VALLEY IS BRINGING A RAIN SHOWERS AND SNOW SHOWERS TO THOSE AREAS. AS
THIS FRONT MOVES EASTWARD OVERNIGHT SNOW SHOWERS WILL MOVE THROUGH
THE SOUTH CENTRAL REGION AND DIMINISH IN SOUTHWEST ALASKA.

THE FRONT NEAR THE ALCAN BORDER BROUGHT A SNOW ADVISORY TO THE COPPER
RIVER BASIN TODAY. THE SNOW HAS LARGELY MOVED INTO THE EASTERN PART
OF THE BASIN THOUGH THERE WILL BE SOME FOG THAT DEVELOPS BEHIND IT.

THE STRONG LOW SOUTHWEST OF ATTU WILL MOVE INTO THE NORTHWESTERN
BERING SEA AND BRING GALES AND STORM FORCE WINDS TO THE ALEUTIANS AND
THE MAJORITY OF THE BERING SEA. MOST OF THE PRECIPITATION IN THE
ALEUTIANS WILL BE IN THE FORM OF RAIN WITH THIS SYSTEM UNTIL THE COLD
AIR WRAPS AROUND AND BRINGS IN SNOW SHOWERS IN NORTHWEST FLOW.

.LONG TERM FORECAST...THE LONG WAVE PATTERN DOES NOT CHANGE A LOT
THROUGH THE MIDDLE OF NEXT WEEK. THE DOMINANT UPPER LEVEL LOW WILL
REMAIN OVER THE WESTERN BERING SEA WITH A LARGE UPPER LEVEL RIDGE
OVER THE WEST COAST OF NORTH AMERICA. THERE WILL BE SOME WAVES THAT
MOVE THROUGH OVER THAT PERIOD BUT THE FLOW REMAINS STRONG
SOUTHWESTERLY OVERT HE STATE WHICH WILL KEEP THE AREA IN AN ACTIVE
STORM TRACK WITH MOSTLY ABOVE AVERAGE TEMPERATURES.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 130 150 155 160 165 170 172 179 180 185.
         STORM 175 176. HEAVY FREEZING SPRAY 185.
FIRE WEATHER...NONE.

DEC 11