Gale Warning 481, NWS Anchorage, AK

000 
FZAK62 PAFC 202313
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT MON JUL 20 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.

PKZ499-211400-
400 PM AKDT MON JUL 20 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 984 MB LOW NEAR 54N 170W WILL STRENGTHEN TO 975 MB TUESDAY MORNING
NEAR 56N 165W...THEN WEAKEN TO 985 MB AS IT MOVES TO NEAR 57N 163W
WEDNESDAY AFTERNOON.

$$

PKZ411-211400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT MON JUL 20 2009

.TONIGHT...NW WIND 20 KT. SEAS 6 BUILDING TO FT. 
.TUE...NW WIND 20 KT. SEAS 7 FT. 
.TUE NIGHT...NW WIND 25 KT. SEAS 7 FT. 
.WED THROUGH THU...NW WIND 20 KT. SEAS 8 FT. 
.FRI...NW WIND 15 KT. SEAS 7 FT. 
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.  

$$

PKZ412-211400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT MON JUL 20 2009

.TONIGHT...NE WIND 15 KT BECOMING NW 25 KT AFTER MIDNIGHT. SEAS
BUILDING TO 7 FT. RAIN.
.TUE...NW WIND 20 TO 30 KT. SEAS 7 TO 11 FT. RAIN.
.TUE NIGHT THROUGH WED NIGHT...NW WIND 25 KT. SEAS 11 FT. 
.THU...NW WIND 20 KT. SEAS 10 FT. 
.FRI...N WIND 20 KT. SEAS 7 FT. 
.SAT...NE WIND 15 KT. SEAS 5 FT.  

$$

PKZ413-211400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT MON JUL 20 2009

...GALE WARNING TUESDAY...

.TONIGHT...NW WIND INCREASING TO 30 KT. SEAS BUILDING TO 11 FT. 
.TUE...W WIND 35 KT. SEAS 12 FT. 
.TUE NIGHT...NW WIND 30 KT. SEAS 11 FT. 
.WED AND WED NIGHT...NW WIND 35 KT. SEAS 12 FT. 
.THU...NW WIND 25 KT. SEAS 11 FT. 
.FRI...NW WIND 20 KT. SEAS 8 FT. 
.SAT...VARIABLE WIND 10 KT. SEAS 6 FT.  

$$

PKZ414-211400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT MON JUL 20 2009

...GALE WARNING TUESDAY AND TUESDAY NIGHT...

.TONIGHT...NE TO NW WIND INCREASING TO 20 TO 30 KT. SEAS BUILDING TO
10 FT. RAIN.
.TUE...N TO W WIND 25 TO 35 KT. SEAS 12 FT. RAIN SHOWERS. 
.TUE NIGHT...NW WIND 35 KT. SEAS 13 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 12 FT. 
.WED NIGHT THROUGH THU...NW WIND 25 KT. SEAS 10 FT. 
.FRI...NE WIND 15 KT. SEAS 6 FT. 
.SAT...SE WIND 15 KT. SEAS 5 FT.  

$$

000 
FZAK62 PAFC 211201
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT TUE JUL 21 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.

PKZ499-220200-
400 AM AKDT TUE JUL 21 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 978 MB LOW NEAR 56N 165W WILL MOVE TO 57N 160W AT 981 MB LATE TUE
NIGHT BEFORE SLOWLY WEAKENING TO 988 MB NEAR 59N 163W LATE WED NIGHT.
WEAK HIGH PRESSURE WILL MOVE INTO THE WESTERN BERING SEA TUE
AFTERNOON AND PERSIST THROUGH WED NIGHT.

$$

PKZ411-220200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT TUE JUL 21 2009

.TODAY...NW WIND 20 KT. SEAS 6 FT. AREAS OF FOG. 
.TONIGHT...NW WIND 20 KT. SEAS 6 FT. AREAS OF FOG. 
.WED...NW WIND 15 KT. SEAS 6 FT. AREAS OF FOG. 
.WED NIGHT...NW WIND 15 KT. SEAS 6 FT. 
.THU...NW WIND 20 KT. SEAS 6 FT. 
.FRI...NW WIND 15 KT. SEAS 6 FT. 
.SAT...N WIND 20 KT. SEAS 7 FT.  

$$

PKZ412-220200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT TUE JUL 21 2009

.TODAY...NW WIND 30 KT. SEAS 8 FT. RAIN.
.TONIGHT...NW WIND 30 KT. SEAS 10 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 10 FT. RAIN.
.WED NIGHT...NW WIND 25 KT. SEAS 10 FT. 
.THU...NW WIND 25 KT. SEAS 8 FT. 
.FRI...N WIND 20 KT. SEAS 7 FT. 
.SAT...NE WIND 15 KT. SEAS 6 FT.  

$$

PKZ413-220200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT TUE JUL 21 2009

...GALE WARNING TODAY...

.TODAY...NW WIND 35 KT. SEAS 11 FT. 
.TONIGHT...NW WIND 30 KT. SEAS 12 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 12 FT. RAIN.
.WED NIGHT...NW WIND 30 KT. SEAS 11 FT. 
.THU...NW WIND 25 KT. SEAS 9 FT. 
.FRI...NW WIND 20 KT. SEAS 7 FT. 
.SAT...NW WIND 20 KT. SEAS 6 FT.  

$$

PKZ414-220200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT TUE JUL 21 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...N WIND 35 KT. SEAS 11 FT. RAIN SHOWERS. 
.TONIGHT...NW WIND 35 KT. SEAS 12 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 11 FT. RAIN.
.WED NIGHT...NW WIND 25 KT. SEAS 9 FT. 
.THU...NW WIND 20 KT. SEAS 8 FT. 
.FRI...NE WIND 15 KT. SEAS 6 FT. 
.SAT...SE WIND 15 KT. SEAS 5 FT.  

$$

000 
FZAK62 PAFC 212305
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT TUE JUL 21 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.

PKZ499-221400-
400 PM AKDT TUE JUL 21 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 976 MB LOW NEAR 56N 164W WILL MOVE TO 57N 160 TONIGHT AND THEN
WEAKEN TO 988 MB THU MORNING NEAR 56N 160W. THE LOW WILL THEN BE
ABSORBED INTO A 990 MB LOW THU AFTERNOON NEAR 58N 165W.

$$

PKZ411-221400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT TUE JUL 21 2009

.TONIGHT...NW WIND 20 KT. SEAS 6 FT. AREAS OF FOG. 
.WED...W WIND 15 KT. SEAS 6 FT. AREAS OF FOG. 
.WED NIGHT...W WIND 15 KT. SEAS 6 FT. AREAS OF FOG. 
.THU AND THU NIGHT...NW WIND 15 KT. SEAS 6 FT. 
.FRI THROUGH SUN...N WIND 15 KT. SEAS 6 FT. 

$$

PKZ412-221400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT TUE JUL 21 2009

.TONIGHT...NW WIND INCREASING TO 30 KT. SEAS BUILDING TO 10 FT.
RAIN.
.WED...NW WIND 30 KT. SEAS 10 FT. 
.WED NIGHT...NW WIND 25 KT. SEAS 10 FT. 
.THU...NW WIND 25 KT. SEAS 8 FT. 
.THU NIGHT THROUGH FRI...N WIND 20 KT. SEAS 6 FT. 
.SAT THROUGH SUN...N WIND 15 KT. SEAS 6 FT.

$$

PKZ413-221400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT TUE JUL 21 2009

.TONIGHT...NW WIND 30 KT. SEAS 12 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 12 FT. RAIN.
.WED NIGHT...NW WIND 20 KT. SEAS 9 FT. 
.THU THROUGH FRI...NW WIND 20 KT. SEAS 7 FT. 
.SAT THROUGH SUN...N WIND 15 KT. SEAS 6 FT. 

$$

PKZ414-221400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT TUE JUL 21 2009

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 35 KT BECOMING 25 KT BY MIDNIGHT. SEAS 12 FT.
RAIN.
.WED...NW WIND 25 KT. SEAS 11 FT. 
.WED NIGHT...NW WIND 25 KT. SEAS 9 FT. 
.THU...NW WIND 20 KT. SEAS 8 FT. 
.THU NIGHT...NW WIND 15 KT. SEAS 6 FT. 
.FRI THROUGH SAT...E WIND 15 KT. SEAS 5 FT. 
.SUN...SE WIND 20 KT. SEAS 6 FT.  

$$

000 
FZAK62 PAFC 221130
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT WED JUL 22 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.

PKZ499-230200-
400 AM AKDT WED JUL 22 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 980 MB LOW NEAR 57N 159W WILL SLOWLY WEAKEN TO 990 MB NEAR 58N 158W
THU MORNING. THE LOW WILL THEN MOVE TO 58N 169W AT 994 MB LATE THU
NIGHT. WEAK HIGH PRESSURE WILL PERSIST IN THE WESTERN BERING THROUGH
LATE WED NIGHT.
$$

PKZ411-230200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT WED JUL 22 2009

.TODAY...W WIND 25 KT. SEAS 7 FT. AREAS OF FOG. 
.TONIGHT...W WIND 20 KT. SEAS 7 FT. AREAS OF FOG. 
.THU...NW WIND 20 KT. SEAS 7 FT. AREAS OF FOG. 
.THU NIGHT...NW WIND 20 KT. SEAS 7 FT. 
.FRI...NW WIND 20 KT. SEAS 6 FT. 
.SAT...N WIND 20 KT. SEAS 7 FT. 
.SUN...N WIND 25 KT. SEAS 7 FT.  

$$

PKZ412-230200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT WED JUL 22 2009

.TODAY...NW WIND 30 KT. SEAS 10 FT. 
.TONIGHT...NW WIND 25 KT. SEAS 10 FT. 
.THU...NW WIND 20 KT. SEAS 8 FT. 
.THU NIGHT...NW WIND 25 KT. SEAS 8 FT. 
.FRI...N WIND 20 KT. SEAS 6 FT. 
.SAT...NE WIND 20 KT. SEAS 6 FT.
.SUN...N WIND 25 KT. SEAS 7 FT.  

$$

PKZ413-230200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT WED JUL 22 2009

.TODAY...NW WIND 30 KT. SEAS 12 FT. RAIN.
.TONIGHT...NW WIND 30 KT. SEAS 11 FT. 
.THU...W WIND 20 KT. SEAS 8 FT. 
.THU NIGHT...NW WIND 20 KT. SEAS 8 FT. 
.FRI...NW WIND 25 KT. SEAS 7 FT. 
.SAT...N WIND 15 KT. SEAS 6 FT. 
.SUN...NW WIND 25 KT. SEAS 6 FT.  

$$

PKZ414-230200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT WED JUL 22 2009

.TODAY...NW WIND 25 KT. SEAS 11 FT. RAIN.
.TONIGHT...NW WIND 25 KT. SEAS 9 FT. 
.THU...NW WIND 20 KT. SEAS 8 FT. 
.THU NIGHT...W WIND 15 KT. SEAS 7 FT. 
.FRI...SE WIND 20 KT. SEAS 5 FT. 
.SAT...NE WIND 25 KT. SEAS 6 FT.
.SUN...S WIND 25 KT. SEAS 7 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AKDT SUN JUL 19 2009

.ANALYSIS AND UPPER LEVELS...
ALOFT...A LONGWAVE TROUGH REMAINS OVER THE BERING SEA...WITH A
WEAKENING LOW NEAR SAINT MATTHEW ISLAND. THE TROUGH AXIS EXTENDS
ACROSS THE AKPEN AND INTO KODIAK ISLAND. AN UPPER RIDGE IS OVER THE
ALCAN BORDER AND AK PANHANDLE.

AT THE SURFACE...A WEAKENING SURFACE LOW IS NEAR SAINT MATTHEW
ISLAND...WITH AN ASSOCIATED FRONT STRETCHING ACROSS SOUTHWEST AND
INTO THE GULF OF AK. A WEAK TRIPLE POINT LOW IS WEST OF KODIAK
ISLAND. ELSEWHERE...THE EARLY MAKINGS OF A SURFACE LOW ARE OVER THE
WESTERN ALEUTIANS.

.MODEL DISCUSSION...
MODELS ARE IN DECENT AGREEMENT THROUGH TUESDAY. SOLUTIONS TAKE THE
LOW DEVELOPING NEAR THE WESTERN ALEUTIANS INTO THE BRISTOL BAY AREA
BY TUESDAY...WHILE A WEAK LOW AND WEATHER FRONT IMPACT SOUTHCENTRAL.
DIFFERENCES ARISE MAINLY IN POSITIONING AND INTENSITY OF THE LOW
MOVING INTO BRISTOL BAY. THE FORECAST THIS AFTERNOON IS BASED ON A
BLEND OF THE GFS/NAM SOLUTIONS.

.SHORT TERM FORECAST...
.SOUTHCENTRAL...
WIDESPREAD RAIN WILL CONTINUE TO AFFECT SOUTHCENTRAL THROUGH THE NEXT
SEVERAL DAYS AS VARIOUS DISTURBANCES IMPACT THE AREA. THE FRONT AND
LOW NEAR KODIAK WILL PROPAGATE NORTHWARD...BRINGING ANOTHER ROUND OF
HIGH WINDS ALONG ELEVATED AND CHANNELED TERRAIN AS THE GRADIENT
TIGHTENS TONIGHT INTO MONDAY. A DEVELOPING COASTAL BARRIER JET WILL
ALSO KEEP WINDS GUSTY ALONG COASTAL WATERS. TYPICAL DOWNSLOPED AREAS
WILL SEE MAINLY SHOWERS AS FLOW RAMPS UP...ALTHOUGH BETWEEN SYSTEMS
ONCE FLOW WEAKENS RAIN WILL FILL BACK IN. ANOTHER FRONT MOVING INTO
THE AREA ON TUESDAY WILL LEAD TO A REINFORCEMENT OF RAIN AND STRONG
WINDS. TEMPERATURES WILL REMAIN COOL BUT SEASONABLE.

.SOUTHWEST...
RAINY AND COOL CONDITIONS WILL PERSIST ACROSS THE AREA AS THE
AFOREMENTIONED FRONT DISSIPATES TONIGHT INTO TOMORROW. AS THE NEXT
SURFACE LOW AND FRONT MOVE INTO BRISTOL BAY...EXPECT ANOTHER
REINFORCING SHOT OF PRECIP LATE MONDAY INTO TUESDAY AND WEDNESDAY.

.BERING SEA AND ALEUTIANS...
SHOWERS WILL BECOME MORE WIDESPREAD OVER THE ALEUTIANS AND PRIBILOFS
AS THE DEVELOPING SURFACE LOW MOVES FROM THE CENTRAL ALEUTIANS INTO
BRISTOL BAY THROUGH TUESDAY. AS THE LOW MOVES EAST...EXPECT THE
WESTERN AND CENTRAL ALEUTIANS TO REMAIN CLOUDY LATE MONDAY INTO
TUESDAY. SHOWERS WILL REMAIN MORE WIDESPREAD ACROSS THE EASTERN
ALEUTIANS AND PRIBS THROUGH MIDWEEK AS THE LOW STALLS IN BRISTOL BAY.

.LONG TERM FORECAST...
THROUGH THE END OF THE WEEK EXPECT A LONGWAVE TROUGH TO BE SITUATED
OVER THE AREA...WITH AN ASSOCIATED UPPER LOW NEAR THE EASTERN
ALEUTIANS. WEATHER WILL REMAIN ACTIVE ACROSS THE SOUTHERN
MAINLAND...BERING SEA...AND ALEUTIANS...WITH COOL AND WET CONDITIONS
PREVAILING.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...GALE 132 150 160
FIRE WEATHER...NONE

NRH JUL 09