Storm Warning 127, NWS Anchorage, AK

000 
FZAK62 PAFC 261154
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT WED AUG 26 2009

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.

PKZ499-270200-
400 AM AKDT WED AUG 26 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 984 MB LOW AT 53N 176W MOVES TO 50N 161W THURSDAY AFTERNOON AT 977
MB. A RIDGE OF HIGH PRESSURE FORMS OVER THE WESTERN ALEUTIANS
WEDNESDAY EVENING AND PERSISTS THROUGH FRIDAY.

$$

PKZ411-270200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT WED AUG 26 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...N WIND 40 KT. GUSTS TO 55 KT. SEAS 15 FT. RAIN.
.TONIGHT...N WIND 35 KT BECOMING NW 25 KT AFTER MIDNIGHT. SEAS
13 FT. 
.THU...W WIND 15 KT. SEAS 10 FT. PATCHY FOG. 
.THU NIGHT THROUGH FRI...SW WIND 20 KT. SEAS 7 FT. 
.SAT...SW WIND 25 KT. SEAS 8 FT.
.SUN...SW WIND 25 KT. SEAS 10 FT.  

$$

PKZ412-270200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT WED AUG 26 2009

...STORM WARNING TONIGHT...

.TODAY...E WIND INCREASING TO 45 KT. SEAS 15 FT. PATCHY FOG. RAIN.
.TONIGHT...NE WIND 50 KT BECOMING N 40 KT AFTER MIDNIGHT. SEAS
17 FT. PATCHY FOG. RAIN.
.THU...N WIND 30 KT. SEAS 12 FT. 
.THU NIGHT...NW WIND 20 KT. SEAS 8 FT. 
.FRI...W WIND 15 KT. SEAS 7 FT. 
.SAT...SW WIND 20 KT. SEAS 6 FT.
.SUN...SW WIND 30 KT. SEAS 10 FT.  

$$

PKZ413-270200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT WED AUG 26 2009

...STORM WARNING TODAY AND TONIGHT...

.TODAY...SE TO SW WIND 30 TO 40 KT BECOMING W 50 KT IN THE 
AFTERNOON. GUSTS TO 65 KT IN THE AFTERNOON. SEAS 17 FT. PATCHY FOG.
RAIN.
.TONIGHT...N WIND 60 KT. SEAS 20 FT. RAIN.
.THU...N WIND 40 KT DIMINISHING TO 30 KT IN THE AFTERNOON. SEAS
17 FT. 
.THU NIGHT...NW WIND 25 KT. SEAS 13 FT. 
.FRI...W WIND 20 KT. SEAS 8 FT. 
.SAT...SW WIND 20 KT. SEAS 5 FT.
.SUN...SW WIND 30 KT. SEAS 9 FT.  

$$

PKZ414-270200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT WED AUG 26 2009

...GALE WARNING THROUGH THURSDAY...

.TODAY...E WIND INCREASING TO 30 TO 40 KT. SEAS 12 FT. PATCHY FOG.
RAIN.
.TONIGHT...E WIND 45 KT. SEAS 17 FT. PATCHY FOG. RAIN.
.THU...NE WIND 45 KT BECOMING N 35 KT IN THE AFTERNOON. SEAS 15 FT.
PATCHY FOG. RAIN.
.THU NIGHT...N WIND 30 KT. SEAS 13 FT. 
.FRI...NW WIND 35 KT. SEAS 11 FT. 
.SAT...NW WIND 25 KT. SEAS 7 FT.
.SUN...SW WIND 30 KT. SEAS 8 FT.  

$$

000 
FZAK62 PAFC 262353
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED AUG 26 2009

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.

PKZ499-271400-
400 PM AKDT WED AUG 26 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 983 MB LOW AT 54N 173W WILL MOVE TO NEAR 51N 163W AT 980 MB THU
AFTERNOON. THIS LOW WILL THEN WEAKEN OVER THE NORTH PACIFIC. HIGH
PRESSURE RIDGING WILL BUILD OVER THE WESTERN BERING SEA THU THROUGH
FRI.
$$

PKZ411-271400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT WED AUG 26 2009

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 40 KT DIMINISHING TO 30 KT THIS EVENING. 
SEAS 14 FT. 
.THU...NW WIND 20 KT. SEAS 12 FT.  
.THU NIGHT...W WIND 20 KT. SEAS 10 FT.  
.FRI THROUGH SAT...SW WIND 20 KT. SEAS 8 FT. 
.SUN AND MON...SW WIND 25 KT. SEAS 13 FT. 

$$

PKZ412-271400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT WED AUG 26 2009

...STORM WARNING TONIGHT...

.TONIGHT...NE WIND 50 KT DIMINISHING TO N 40 KT AFTER MIDNIGHT. SEAS
18 FT. RAIN.
.THU...N WIND 35 KT. SEAS 14 FT. 
.THU NIGHT...NW WIND 25 KT. SEAS 10 FT. 
.FRI AND FRI NIGHT...W WIND 20 KT. SEAS 8 FT. 
.SAT...SW WIND 25 KT. SEAS 8 FT. 
.SUN AND MON...SW WIND 30 KT. SEAS 12 FT. 

$$

PKZ413-271400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT WED AUG 26 2009

...STORM WARNING TONIGHT...

.TONIGHT...NW WIND 55 KT DIMINISHING TO N 45 KT AFTER MIDNIGHT. 
SEAS 21 FT. RAIN.
.THU...N WIND 45 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
19 FT. 
.THU NIGHT...NW WIND 30 KT. SEAS 15 FT. 
.FRI AND FRI NIGHT...W WIND 20 KT. SEAS 9 FT. 
.SAT...SW WIND 20 KT. SEAS 6 FT. 
.SUN AND MON...SW WIND 30 KT. SEAS 11 FT. 

$$

PKZ414-271400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT WED AUG 26 2009

...STORM WARNING TONIGHT...

.TONIGHT...NE WIND 35 KT INCREASING TO 50 KT THIS EVENING. 
SEAS 18 FT. RAIN.
.THU...NE WIND 45 KT. SEAS 17 FT. RAIN.
.THU NIGHT...N WIND 35 KT. SEAS 15 FT. 
.FRI AND FRI NIGHT...NW WIND 30 KT. SEAS 13 FT. 
.SAT...NW WIND 25 KT. SEAS 8 FT. 
.SUN AND MON...SW WIND 30 KT. SEAS 10 FT. 

$$

000 
FZAK62 PAFC 271203
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT THU AUG 27 2009

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.

PKZ499-280200-
400 AM AKDT THU AUG 27 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 979 MB LOW AT 53N 168W MOVES TO 50N 160W FRIDAY MORNING AT 984 MB.
HIGH PRESSURE FORMING OVER THE WESTERN BERING SEA WILL SPREAD OVER
THE ENTIRE REGION BY FRIDAY NIGHT.

$$

PKZ411-280200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT THU AUG 27 2009

.TODAY...W WIND 20 KT. SEAS 10 FT. PATCHY FOG. 
.TONIGHT...SW WIND 20 KT. SEAS 9 FT. PATCHY FOG. 
.FRI...SW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.FRI NIGHT...SW WIND 20 KT. SEAS 7 FT. 
.SAT...SW WIND 25 KT. SEAS 7 FT. 
.SUN...SW WIND 30 KT. SEAS 14 FT. 
.MON...SW WIND 25 KT. SEAS 13 FT.  

$$

PKZ412-280200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT THU AUG 27 2009

...GALE WARNING TODAY...

.TODAY...N WIND 25 TO 35 KT. SEAS 12 FT. 
.TONIGHT...NW WIND 15 TO 25 KT. SEAS 9 FT. 
.FRI...W WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.FRI NIGHT THROUGH SAT...W WIND 20 KT. SEAS 6 FT. 
.SUN...SW WIND 35 KT. SEAS 12 FT. 
.MON...SW WIND 25 KT. SEAS 14 FT.  

$$

PKZ413-280200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT THU AUG 27 2009

...STORM WARNING TODAY...

.TODAY...N WIND 40 TO 50 KT DIMINISHING TO 25 TO 35 KT IN THE
AFTERNOON. SEAS 14 TO 17 FT. 
.TONIGHT...NW WIND 20 TO 30 KT. SEAS 14 FT. 
.FRI...NW WIND 20 KT. SEAS 9 FT. PATCHY FOG. 
.FRI NIGHT THROUGH SAT...W WIND 15 KT. SEAS 5 FT. 
.SUN...SW WIND 30 KT. SEAS 9 FT. 
.MON...SW WIND 25 KT. SEAS 11 FT.  

$$

PKZ414-280200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT THU AUG 27 2009

...GALE WARNING THROUGH FRIDAY...

.TODAY...NE WIND 35 TO 45 KT. SEAS 15 FT. PATCHY FOG. RAIN.
.TONIGHT...N WIND 25 TO 35 KT. SEAS 14 FT. 
.FRI...N WIND 25 TO 35 KT. SEAS 12 FT. 
.FRI NIGHT...NW WIND 30 KT. SEAS 8 FT. 
.SAT...NW WIND 20 KT. SEAS 6 FT. 
.SUN...W WIND 25 KT. SEAS 7 FT. 
.MON...SW WIND 30 KT. SEAS 10 FT.  

$$

195 
FZAK62 PAFC 272255
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT THU AUG 27 2009

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.

PKZ499-281400-
400 PM AKDT THU AUG 27 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 980 MB LOW NEAR 51N 162W WILL WEAKEN AS IT MOVES EASTWARD 
AWAY FROM THE REGION THU NIGHT AND FRI. A RIDGE OF HIGH PRESSURE 
OVER THE WESTERN BERING WILL GRADUALLY BUILD EASTWARD OVER 
THE EASTERN BERING THROUGH SAT.

$$

PKZ411-281400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT THU AUG 27 2009

.TONIGHT...SW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.FRI THROUGH SAT...SW WIND 20 KT. SEAS 7 FT. PATCHY FOG. 
.SAT NIGHT...S WIND 30 KT. SEAS 9 FT. 
.SUN...SW WIND 35 KT. SEAS 14 FT. 
.MON...SW WIND 30 KT. SEAS 13 FT. 
.TUE...W WIND 20 KT. SEAS 10 FT.  

$$

PKZ412-281400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT THU AUG 27 2009

.TONIGHT...NW WIND 15 TO 25 KT. SEAS 6 TO 11 FT. 
.FRI THROUGH SAT...W WIND 20 KT. SEAS 6 FT. PATCHY FOG. 
.SAT NIGHT...SW WIND 25 KT. SEAS 7 FT. 
.SUN...SW WIND 35 KT. SEAS 15 FT. 
.MON...SW WIND 30 KT. SEAS 15 FT. 
.TUE...SW WIND 20 KT. SEAS 12 FT.  

$$

PKZ413-281400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT THU AUG 27 2009

.TONIGHT...NW WIND 30 TO 40 KT DIMINISHING TO 20 TO 30 KT AFTER
MIDNIGHT. SEAS 12 TO 16 FT. 
.FRI...NW WIND 20 KT. SEAS 8 FT. PATCHY FOG. 
.FRI NIGHT AND SAT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG. 
.SAT NIGHT...SW WIND 25 KT. SEAS 5 FT. 
.SUN...SW WIND 35 KT. SEAS 12 FT. 
.MON...SW WIND 30 KT. SEAS 14 FT. 
.TUE...SW WIND 25 KT. SEAS 11 FT.  

$$

PKZ414-281400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT THU AUG 27 2009

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 30 TO 40 KT DIMINISHING TO 20 TO 30 KT AFTER
MIDNIGHT. SEAS 13 TO 16 FT. 
.FRI...N WIND 30 KT. SEAS 11 FT. 
.FRI NIGHT...NW WIND 25 KT. SEAS 8 FT. 
.SAT...NW WIND 20 KT. SEAS 6 FT. 
.SAT NIGHT...W WIND 20 KT. SEAS 5 FT. 
.SUN...SW WIND 30 KT. SEAS 8 FT. 
.MON...SW WIND 30 KT. SEAS 13 FT. 
.TUE...SW WIND 25 KT. SEAS 12 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AKDT TUE AUG 25 2009

.ANALYSIS AND UPPER LEVELS...
ALOFT...THE DEEP UPPER TROUGH REMAINS OVER MAINLAND ALASKA WITH
RIDGING OVER THE WESTERN AND CENTRAL ALEUTIANS. A DEVELOPING UPPER
LOW ASSOCIATED WITH THE REMNANTS OF TYPHOON VAMCO WILL TEMPORARILY
FLATTEN THIS RIDGE AND DEEPEN THE TROUGH THROUGH THE END OF THE WEEK.

AT THE SURFACE...THE BROAD LOW COMPLEX IS IN PLACE OVER THE NORTHEAST
PACIFIC WITH A WEAKENING LOW IN THE EASTERN GULF. VARIOUS EASTERLY
WAVES ARE ROTATING AROUND THE LOW COMPLEX. ELSEWHERE...HIGH PRESSURE
RIDGING IS OVER THE CENTRAL ALEUTIANS. FORMER TYPHOON
VAMCO...CURRENTLY SOUTHWEST OF SHEMYA...IS HEADING STEADILY TOWARD
THE WESTERN BERING.

.MODEL DISCUSSION...
MODELS CONTINUE TO BE IN GOOD AGREEMENT THROUGH SATURDAY. SIMILAR
STORY TO THIS MORNING...WITH THE NAM CONTINUING TO BE TOO SLOW IN
HANDLING FORMER TYPHOON VAMCO AS IT MOVES ACROSS THE BERING AND INTO
THE NORTH PACIFIC. OTHERWISE...THE MAIN POINT OF CONTENTION IS
HANDLING THE LOW COMPLEX REMAINING IN THE GULF OF AK AND NORTHEAST
PACIFIC AS WE HEAD INTO THE WEEKEND. AS A RESULT OF THESE
DIFFERENCES...THE AFTERNOON PACKAGE WAS CONSTRUCTED MAINLY USING THE
GFS SOLUTION.

.SHORT TERM FORECAST...
.SOUTHCENTRAL...
MAIN FORECAST PROBLEM ACROSS SOUTHCENTRAL WILL BE TIMING EASTERLY
WAVES AND UPPER SHORTWAVES AS THEY PULSE ACROSS THE AREA TONIGHT AND
TOMORROW. A DEFORMATION ZONE LOOKS TO SET UP ACROSS THE AREA LATE
WEDNESDAY AS WELL. AS A RESULT...SHOWERS ARE EXPECTED TO BEGIN
FORMING TONIGHT ACROSS THE REGION...BECOMING MORE WIDESPREAD
WEDNESDAY AND WEDNESDAY NIGHT. GOOD ONSHORE FLOW ASSOCIATED WITH THE
LOW COMPLEX IN THE NORTHEAST PACIFIC WILL KEEP RAIN AND NUMEROUS
SHOWERS ACROSS COASTAL PORTIONS OF SOUTHCENTRAL AS WELL AS WE HEAD
THROUGH THE END OF THE WEEK.

.SOUTHWEST...
GENERALLY FAIR WEATHER WILL PERSIST ACROSS SOUTHWEST TONIGHT THROUGH
TOMORROW AS UPPER RIDGING REMAINS IN CONTROL. AS THE TYPHOON REMNANTS
MOVE ACROSS THE EASTERN ALEUTIANS...EXPECT RAIN AND GUSTY WINDS TO
IMPACT THE AKPEN WEDNESDAY NIGHT AND THURSDAY. SCATTERED SHOWERS
CANNOT BE RULED OUT ALONG BRISTOL BAY AS WELL.

.BERING SEA AND ALEUTIANS...
BIG STORY OVER THE NEXT SEVERAL DAYS REVOLVES AROUND FORMER TYPHOON
VAMCO MOVING ACROSS THE BERING...ACROSS THE EASTERN ALEUTIANS...AND
INTO THE NORTHERN PACIFIC. WIDESPREAD RAIN AND WINDS UP TO STORM
FORCE WILL ACCOMPANY THE LOW. PRECIP WILL BE MOST WIDESPREAD ACROSS
THE WESTERN AND CENTRAL ALEUTIANS THIS EVENING AND TONIGHT...MOVING
INTO THE EASTERN ALEUTIANS AND PRIBILOFS TOMORROW AND THURSDAY.

.LONG TERM FORECAST...
EXPECT THE LOW COMPLEX TO REMAIN IN THE GULF OF AK THROUGH THE
WEEKEND...KEEPING MOIST FLOW ALONG COASTAL PORTIONS OF SOUTHCENTRAL.
INLAND PORTIONS WILL LIKELY SEE MORE SCATTERED SHOWERS. SOUTHWEST AK
WILL REMAIN RELATIVELY FAIR AND DRY AS UPPER RIDGING REMAINS OVER THE
AREA. WHILE DETAILS REMAIN UNCLEAR...THE BERING SEA AND ALEUTIANS
LOOK TO RETURN TO A MORE ACTIVE PATTERN AS WE HEAD INTO NEXT WEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...STORM 172 175 179
         GALE 155 165 170 176
FIRE WEATHER...NONE

NRH AUG 09