Gale Warning 847, NWS Anchorage, AK

000 
FZAK61 PAFC 092353 CCA
OFFAER

OFFSHORE WATERS FORECAST...CORRECTION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST MON DEC 9 2013

CORRECTION TO ZONES 351 AND 352

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 MON DEC 9 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
HIGH PRESSURE OVER THE CENTRAL GULF WILL MOVE EAST AND WEAKEN THROUGH
TUE. A 984 MB LOW NEAR 50N 153W TUE AFTERNOON WILL MOVE TO 55N 143W
AT 982 MB WED AFTERNOON.

$$

PKZ351-101500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST MON DEC 9 2013

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...VARIABLE WIND 10 KT. SEAS 6 FT. AREAS OF FOG.
.TUE...E WIND 15 TO 25 KT. SEAS 6 FT. PATCHY FOG.
.TUE NIGHT...E WIND 25 TO 35 KT. SEAS 8 TO 13 FT. RAIN.
.WED...NE WIND 30 KT. SEAS 13 FT. 
.WED NIGHT...NW WIND 20 KT. SEAS 12 FT. 
.THU...N WIND 25 KT. SEAS 9 FT. 
.FRI...E WIND 25 KT. SEAS 11 FT. 
.SAT...N WIND 20 KT. SEAS 13 FT.  

$$

PKZ352-101500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST MON DEC 9 2013

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...E WIND 25 KT. SEAS 7 FT. AREAS OF FOG.
.TUE...E WIND 25 TO 35 KT. SEAS 11 FT. RAIN. PATCHY FOG.
.TUE NIGHT...E WIND 25 TO 35 KT. SEAS 10 TO 15 FT. RAIN.
.WED...N WIND 30 KT. SEAS 14 FT. 
.WED NIGHT...NW WIND 25 KT. SEAS 12 FT. 
.THU...SW WIND 25 KT. SEAS 9 FT.
.FRI...E WIND 25 KT. SEAS 9 FT. 
.SAT...NW WIND 20 KT. SEAS 14 FT.  

$$

000 
FZAK61 PAFC 101219
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST TUE DEC 10 2013

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 TUE DEC 10 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 988 MB LOW NEAR 49N 157W WILL MOVE TO 54N 146W AT 983 MB WED
MORNING...THEN MOVE TO 58N 141W AT 990 MB LATE WED NIGHT.

$$

PKZ351-110300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST TUE DEC 10 2013

...GALE WARNING TONIGHT...

.TODAY...E WIND INCREASING TO 20 TO 30 KT IN THE AFTERNOON. SEAS 4 FT
BUILDING TO 7 FT. PATCHY FOG. 
.TONIGHT...NE WIND 25 TO 35 KT. SEAS 12 FT. RAIN.
.WED...NE WIND 30 KT. SEAS 13 FT. 
.WED NIGHT...N WIND 25 KT. SEAS 12 FT. 
.THU...SW WIND 25 KT. SEAS 9 FT.
.FRI...E WIND 25 KT. SEAS 11 FT. 
.SAT...S WIND 20 KT. SEAS 18 FT.  
$$

PKZ352-110300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST TUE DEC 10 2013

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...E WIND 25 TO 35 KT. SEAS 7 TO 12 FT. PATCHY FOG. RAIN.
.TONIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 14 FT. RAIN.
.WED...N WIND 35 KT. SEAS 11 TO 15 FT. 
.WED NIGHT...NW WIND 30 KT. SEAS 12 FT. 
.THU...SW WIND 25 KT. SEAS 9 FT.
.FRI...SE WIND 20 KT. SEAS 15 FT. 
.SAT...W WIND 25 KT. SEAS 20 FT.  
$$

000 
FZAK61 PAFC 110008
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST TUE DEC 10 2013

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 TUE DEC 10 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 986 MB LOW NEAR 50N 153W WILL MOVE TO 54N 144W AT 984 MB WED
AFTERNOON AND THEN TO 59N 148W AT 996 MB THU AFTERNOON.

$$

PKZ351-111500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST TUE DEC 10 2013

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...NE WIND 25 TO 35 KT. SEAS 13 FT. AREAS OF FOG. RAIN AND
SNOW. 
.WED...NE WIND 25 TO 35 KT. SEAS 14 FT. AREAS OF FOG. 
.WED NIGHT...N WIND 25 KT. SEAS 12 FT. AREAS OF FOG. 
.THU...W WIND 25 KT. SEAS 9 FT. 
.THU NIGHT...SW WIND 25 KT. SEAS 9 FT. 
.FRI...E WIND 30 KT. SEAS 11 FT. 
.SAT...S WIND 20 KT. SEAS 18 FT. 
.SUN...SW WIND 20 KT. SEAS 18 FT.  

$$

PKZ352-111500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST TUE DEC 10 2013

...GALE WARNING THROUGH WEDNESDAY...

.TONIGHT...E WIND 30 TO 40 KT. SEAS 11 TO 16 FT. AREAS OF FOG. RAIN.
.WED...NE WIND 25 TO 35 KT. SEAS 10 TO 15 FT. AREAS OF FOG. 
.WED NIGHT...NW WIND 30 KT. SEAS 13 FT. AREAS OF FOG. 
.THU...W WIND 25 KT. SEAS 10 FT. 
.THU NIGHT...S WIND 25 KT. SEAS 10 FT. 
.FRI...SE WIND 25 KT. SEAS 15 FT. 
.SAT...W WIND 25 KT. SEAS 20 FT. 
.SUN...SW WIND 20 KT. SEAS 19 FT.  

$$

000 
FZAK61 PAFC 111206
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST WED DEC 11 2013

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 WED DEC 11 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 982 MB LOW NEAR 53N 150W WILL WEAKEN TO 989 MB THU MORNING AT 58N
141W AND CONTINUE TO WEAKEN TO 996 MB THU AFTERNOON AT 59N 147W
BEFORE DISSIPATING LATE THU. A WEATHER FRONT WILL ENTER THE WESTERN
GULF LATE THU.
$$

PKZ351-120300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST WED DEC 11 2013

...GALE WARNING TODAY...

.TODAY...NE WIND 35 KT. SEAS 15 FT. RAIN AND SNOW SHOWERS. 
.TONIGHT...N WIND 30 KT BECOMING NW 20 KT AFTER MIDNIGHT. SEAS
13 FT. 
.THU...SW WIND 20 KT. SEAS 9 FT. 
.THU NIGHT...SW WIND 20 KT. SEAS 8 FT. 
.FRI...E WIND 30 KT. SEAS 10 FT. 
.SAT...SW WIND 30 KT. SEAS 19 FT. 
.SUN...W WIND 25 KT. SEAS 19 FT.  
$$

PKZ352-120300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST WED DEC 11 2013

...GALE WARNING TODAY...

.TODAY...NE WIND 35 KT. SEAS 16 FT. PATCHY FOG. RAIN SHOWERS. 
.TONIGHT...N WIND 30 KT BECOMING W 20 KT AFTER MIDNIGHT. SEAS 14 FT. 
.THU...SW WIND 25 KT. SEAS 9 FT. 
.THU NIGHT...SW WIND 20 KT. SEAS 9 FT. 
.FRI...S WIND 30 KT. SEAS 14 FT. 
.SAT...SW WIND 35 KT. SEAS 21 FT. 
.SUN...W WIND 30 KT. SEAS 22 FT.  
$$

000 
FZAK61 PAFC 112354
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST WED DEC 11 2013

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.

PKZ399-121500-
400 PM AKST WED DEC 11 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 983 MB LOW 200 NM SOUTHWEST OF YAKUTAT WILL MOVE TO 59N 147W AT 
994 MB THU AFTERNOON AND THEN DISSIPATE THU NIGHT. A 978 MB LOW NEAR
51N 155W THU NIGHT WILL MOVE TO 57N 146W AT 975 MB FRI AFTERNOON.

$$

PKZ351-121500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST WED DEC 11 2013

.TONIGHT...N WIND 20 TO 30 KT BECOMING W 15 KT AFTER MIDNIGHT. SEAS
14 FT. 
.THU...W WIND 20 KT. SEAS SUBSIDING TO 9 FT. 
.THU NIGHT...SW WIND 20 KT BECOMING S 10 KT AFTER MIDNIGHT. SEAS 8
FT. 
.FRI...E WIND 15 KT INCREASING TO 30 KT BY AFTERNOON. SEAS 9 FT. 
.FRI NIGHT...S WIND 25 KT. SEAS 11 FT. 
.SAT...SW WIND 30 KT. SEAS 19 FT. 
.SUN...W WIND 25 KT. SEAS 19 FT. 
.MON...NW WIND 20 KT. SEAS 9 FT.  

$$

PKZ352-121500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST WED DEC 11 2013

.TONIGHT...NW WIND 20 TO 30 KT. SEAS 15 FT. 
.THU...W WIND 25 KT. SEAS SUBSIDING TO 10 FT. 
.THU NIGHT...SW WIND 20 KT BECOMING SE AFTER MIDNIGHT. SEAS 9 FT.
PATCHY FOG. RAIN AND SNOW. 
.FRI...SE WIND 20 KT BECOMING S 30 KT IN THE AFTERNOON. SEAS 11 FT. 
.FRI NIGHT...W WIND 30 KT. SEAS BUILDING TO 15 FT. 
.SAT...SW WIND 35 KT. SEAS BUILDING TO 21 FT. 
.SUN...W WIND 30 KT. SEAS 22 FT. 
.MON...W WIND DIMINISHING TO 20 KT. SEAS SUBSIDING TO 10 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST MON DEC 9 2013

.ANALYSIS AND UPPER LEVELS...THE UPPER LEVEL RIDGE THAT HAS BEEN OVER
THE STATE IS STILL IN PLACE BUT IS WEAKENING AS AN UPPER LEVEL TROUGH
IN THE BERING SEA MOVES EASTWARD AND UNDERCUTS IT. THIS IS IN
CONJUNCTION WITH A PATTERN CHANGE WHICH WILL PUT THE UPPER LEVEL LOW
OVER THE MAINLAND PART OF THE STATE WITH A RIDGE OVER THE WESTERN
BERING SEA FOR THE SECOND HALF OF THE WEEK. THIS WILL ALSO BRING MORE
SEASONAL TEMPERATURES OVER THE STATE AS THE WARMEST AIR MOVES ON TO
THE SOUTHEAST.
AT THE SURFACE THE IS HIGH PRESSURE PERSISTING OVER THE MAINLAND PART
OF THE STATE...EXTENDING OUT OF THE LARGE RIDGE IN THE GULF OF
ALASKA. THE LOW SOUTH OF THE ALASKA PENINSULA IS PUSHING NORTHEAST
AND WILL DISPLACE THE SURFACE RIDGE AS THE UPPER LEVEL PATTERN
SHIFTS.

.MODEL DISCUSSION...MODELS ARE IN GOOD AGREEMENT WITH THE SYNOPTIC
PATTER FOR MOST OF THE WEEK. THE BIGGEST DIFFERENCE IN THE MODELS IS
IN REGARD TO THE LOW THAT IS CURRENTLY WELL SOUTH OF THE ALASKA
PENINSULA THAT WILL TRACK INTO THE GULF OF ALASKA LATER IN THE WEEK.
THE MODELS ALL TRACK TO LOW TO A SIMILAR LOCATION...HOWEVER THERE IS
NO AGREEMENT IF THE LOW WILL ELONGATE INTO MULTIPLE CENTERS AND IF SO
WHICH CENTER WILL HAVE THE GREATEST AMOUNT OF ENERGY. AS SUCH THE
CENTRAL PRESSURES VARY BY AROUND 10 MB ON THESE MODELS AS WELL. THESE
DIFFERENCES WILL LIKELY GET IRONED OUT AS THE WEEK GOES ON AND THE
MODELS GET A BETTER HANDLE ON THE DEVELOPMENT OF THIS LOW.

.SHORT TERM FORECAST...FOG IS DISSIPATING OVER SOUTH CENTRAL ALASKA
AS THE UPPER LEVEL WARM CORE RIDGE WEAKENS. THERE WILL ALSO BE
PARTIAL CLEARING AS THE LOW MOVES INTO THE GULF AND THE SURFACE RIDGE
PERSISTS OVER NORTHERN ALASKA. AN UPPER LEVEL SHORT WAVE WILL MOVE
OUT OF NORTHERN ALASKA AND INTO SOUTH CENTRAL ALASKA BY LATE TUESDAY.
THIS WILL KEEP THE AREA FROM CLEARING OUT COMPLETELY...AND THE COPPER
RIVER BASIN WILL LIKELY REMAIN CLOUDY UNDER THIS SHORT WAVE.
THIS PATTERN IS ALSO SHAPING UP FOR SOME STRONG OUTFLOW WINDS TO
DEVELOP ALONG THE NORTH GULF COAST AND NORTH-SOUTH ORIENTED THROUGH
CHANNELED TERRAIN.

SOUTHWEST ALASKA....THERE SHOULD BE AN OVERALL TREND OF DECREASING
CLOUDS OVER THE NEXT DAY OR TWO. THERE WILL BE SOME AREAS OF FOG
TONIGHT BUT THOSE SHOULD ALSO DIMINISH TOMORROW AS THE PRESSURE
GRADIENT INCREASES AND BRINGS BETTER MIXING TO THE ATMOSPHERE.

.LONG TERM FORECAST...MODELS ARE ALL SUPPORTING A BROAD UPPER LEVEL
TROUGH CENTERING OVER THE SOUTHERN MAINLAND AT THE END OF THE WEEK
WITH A RIDGE AMPLIFYING OVER KAMCHATKA. COLD TEMPERATURES WILL STAY
IN PLACE ACROSS MUCH OF THE STATE THROUGH THE WEEKEND. HOWEVER...A
WARM FRONT WILL PUSH INTO THE THE GULF WATERS AT THE END OF THE WEEK
BRINGING A WARM MOIST AIR MASS TO THE NORTHERN GULF. DISTURBANCES
ASSOCIATED WITH THE TROUGH BRING INCREASED PRECIPITATION CHANCES
ACROSS SOUTHERN ALASKA AND THE BERING INTO THE WEEKEND.
THIS WILL BRING A CHANCE FOR SOME SNOW INTO SOUTH CENTRAL ALASKA THIS
WEEKEND BUT ACTUAL LOCATION OF THE LOW AND HOW FAR THE FRONT PUSHES
WESTWARD WILL BE KEY INGREDIENTS AS TO WHETHER THERE IS SNOW OR IF
THERE IS ENOUGH WARM AIR MOVING IN TO CAUSE SOME OF IT TO TURN TO
RAIN. THIS SYSTEM WILL BE ONE TO WATCH AS THE WEEK PROGRESSES.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 150 155.
FIRE WEATHER...NONE.

DEC 13