Gale Warning 417, NWS Anchorage, AK

413 
FZAK61 PAFC 061143
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT THU JUN 6 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.

PKZ399-070300-
400 AM AKDT THU JUN 6 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A LARGE 980 MB LOW NEAR 51N 153W WILL MOVE TO 55N 140W AT 1004 MB 
FRI AFTERNOON THEN SLOWLY WEAKEN IN PLACE THROUGH LATE FRI NIGHT. 

$$

PKZ351-070300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT THU JUN 6 2013

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 35 KT. SEAS 12 FT. 
.TONIGHT...NE WIND 35 KT. SEAS 15 FT. 
.FRI...NE WIND 20 KT. SEAS 13 FT. 
.FRI NIGHT...N WIND 20 KT. SEAS 10 FT. 
.SAT AND SUN...W WIND 15 KT. SEAS 5 FT. 
.MON...W WIND 20 KT. SEAS 6 FT.  

$$

PKZ352-070300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT THU JUN 6 2013

...GALE WARNING THROUGH TONIGHT...

.TODAY...NE WIND 40 KT. SEAS 16 FT. RAIN. 
.TONIGHT...NE WIND 35 KT. SEAS 16 FT. RAIN. 
.FRI...NE WIND 25 KT. SEAS 14 FT. 
.FRI NIGHT...N WIND 20 KT. SEAS 10 FT. 
.SAT THROUGH MON...W WIND 20 KT. SEAS 6 FT.  

$$

218 
FZAK61 PAFC 062310
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT THU JUN 6 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.

PKZ399-071500-
400 PM AKDT THU JUN 6 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 986 MB LOW NEAR 52N 148W WILL WEAKEN TO 1014 MB NEAR 54N 140W 
SAT AFTERNOON. HIGH PRESSURE WILL BUILD INTO THE WESTERN GULF 
ON SAT.
$$

PKZ351-071500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKDT THU JUN 6 2013

...GALE WARNING TONIGHT...

.TONIGHT...NE WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. 
SEAS 15 FT. 
.FRI...NE WIND 20 KT. SEAS 14 FT. 
.FRI NIGHT...NE WIND 20 KT BECOMING VARIABLE 10 KT AFTER MIDNIGHT.
SEAS 9 FT. 
.SAT...W WIND 15 KT. SEAS 7 FT. 
.SAT NIGHT...W WIND 10 KT. SEAS 5 FT. 
.SUN...W WIND 15 KT. SEAS 5 FT. 
.MON...W WIND 20 KT. SEAS 5 FT. 
.TUE...W WIND 15 KT. SEAS 5 FT.  

$$

PKZ352-071500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKDT THU JUN 6 2013

...GALE WARNING TONIGHT...

.TONIGHT...W OF 148W...NE WIND 35 KT DIMINISHING TO 25 KT AFTER
MIDNIGHT. E OF 148W...NE WIND 25 KT DIMINISHING TO 15 KT AFTER
MIDNIGHT. SEAS 17 FT. RAIN.
.FRI...E OF 150W...NE WIND 15 KT. W OF 150W...NE WIND 25 KT
DIMINISHING TO 15 KT BY MIDDAY. SEAS 14 FT. 
.FRI NIGHT...N WIND 20 KT. SEAS 10 FT. 
.SAT...NW WIND 20 KT. SEAS 7 FT. 
.SAT NIGHT THROUGH TUE...W WIND 20 KT. SEAS 6 FT. 

$$

975 
FZAK61 PAFC 071154
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT FRI JUN 7 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.

PKZ399-080300-
400 AM AKDT FRI JUN 7 2013
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 996 MB LOW NEAR 54N 142W WEAKENS TO 1017 MB AS IT DRIFTS TO 54N
136W SAT EVENING AND THEN DISSIPATES. HIGH PRESSURE BUILDS INTO THE
NORTHERN GULF THROUGH SAT NIGHT. 

$$

PKZ351-080300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT FRI JUN 7 2013

.TODAY...NE WIND 25 KT. SEAS 12 FT. 
.TONIGHT...NE WIND 20 KT. SEAS 10 FT. 
.SAT...NW WIND 15 KT. SEAS 7 FT. 
.SAT NIGHT...SW WIND 20 KT. SEAS 6 FT. 
.SUN...W WIND 15 KT. SEAS 5 FT. 
.MON...W WIND 20 KT. SEAS 6 FT. 
.TUE...W WIND 15 KT. SEAS 5 FT.  

$$

PKZ352-080300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT FRI JUN 7 2013

.TODAY...NE WIND 25 KT. SEAS 13 FT. RAIN. 
.TONIGHT AND SAT...N WIND 20 KT. SEAS 8 FT. 
.SAT NIGHT THROUGH TUE...W WIND 20 KT. SEAS 6 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED JUN 5 2013

.ANALYSIS AND UPPER LEVELS...THE PATTERN IS TRANSITIONING TODAY WITH
THE UPPER LEVEL TROUGH OVER SOUTH CENTRAL ALASKA WEAKENING AND SOME
UPPER LEVEL RIDGING OCCURRING OVER SOUTHWEST ALASKA. THE MAIN UPPER
LEVEL LOW IS NOT SOUTH OF THE ALASKA PENINSULA WITH THE JET STREAM
SOUTH OF THAT. THE JET STREAM HOWEVER IS STRENGTHENING THE LARGE
SURFACE LOW THAT IS ALSO WELL SOUTH OF THE ALASKA PENINSULA. THE LOW
CENTER WILL REMAIN SOUTH OF THE GULF BUT THE LOW WILL BRING SOME
STRONGER WINDS AND SOME RAIN TO THE GULF COAST. THE SURFACE RIDGE
OVER SOUTHERN AND SOUTHWEST ALASKA IS BLOCKING THE FORWARD
PROGRESSION OF THE LOW TOWARD THE MAINLAND PART OF THE STATE.

.MODEL DISCUSSION...MODELS ARE IN VERY GOOD AGREEMENT INTO THE
WEEKEND. EARLY NEXT WEEK SOME MODEL DISAGREEMENT CREEPS IN AS A LOW
IN EASTERN RUSSIA BEGINS TO BREAK DOWN THE BERING SEA HIGH. THE GFS
IS MORE AGGRESSIVE IN BREAKING DOWN THIS RIDGE THAN THE ECMWF. THE
WAY THIS SITUATION RESOLVES WILL MAKE A BIG IMPACT FOR THE FORECASTS
IN THE BERING SEA AND SOUTHWEST ALASKA FOR THE EARLY TO MIDDLE PARTS
OF NEXT WEEK.

.SHORT TERM FORECAST...
SOUTH CENTRAL ALASKA WILL SEE SOME SHOWERS POP UP OVER THE MOUNTAINS
THIS AFTERNOON AND EVENING. THERE IS AN UPPER LEVEL DISTURBANCE
MOVING THROUGH THE INTERIOR THAT WILL ENHANCE THE SHOWER ACTIVITY
ALONG THE ALASKA RANGE.
SOUTHWEST ALASKA IS UNDER MORE STABLE CONDITIONS WHICH WILL LIMIT
SHOWER ACTIVITY. THERE WILL ALSO LIKELY BE SOME PATCHY FOG TOWARD
MORNING. THURSDAY WILL LIKELY BE SIMILAR TO TODAY FOR THE KUSKOKWIM
DELTA BUT THE KUSKOKWIM VALLEY AND BRISTOL BAY REGION WILL SEE
INCREASINGLY UNSTABLE CONDITIONS WITH SHOWERS DEVELOPING IN THE
AFTERNOON. AN UPPER LEVEL DISTURBANCE WILL MOVE INTO THE AREA FROM
THE SOUTHEAST TOMORROW EVENING WHICH COULD FURTHER ENHANCE THE
SHOWERS ACTIVITY OR CAUSE SOME ISOLATED THUNDERSTORMS.

.LONG TERM FORECAST...THE PATTERN THAT SETTLES IN THE NEXT FEW DAYS
WILL PERSIST THROUGH THE WEEKEND. IN SOUTH CENTRAL AND SOUTHWEST THIS
WILL KEEP SOME AFTERNOON AND EVENING SHOWERS AROUND...ESPECIALLY OVER
THE MOUNTAINS...BUT OTHERWISE THERE WILL BE PARTLY CLOUDY SKIES WITH
PLENTY OF SUNNY BREAKS.
OVER THE BERING SEA THERE WILL STILL BE LARGE AREAS OF STRATUS AND
FOG UNDER THE HIGH PRESSURE.
THE GULF OF ALASKA REGION MAY SEE A LOT OF SUNNY SKIES AS NORTHWEST
FLOW WILL CLEAR OUT KODIAK AND THE GULF BEYOND.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 132 150 155.
FIRE WEATHER...NONE.

JUN 13