Gale Warning 249, NWS Anchorage, AK

000 
FZAK61 PAFC 211156
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT MAR 21 2009

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.

PKZ399-220200-
400 AM AKDT SAT MAR 21 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 992 MB LOW AT 57N 141W WILL MOVE TO 59N 148W AT 998 MB BY LATE SAT
NIGHT AND DISSIPATE SUN MORNING. A 985 MB LOW AT 52N 154W LATE SAT
NIGHT WILL MOVE TO 55N 149W SUN AFTERNOON THEN TO 57N 150W LAT SUN
NIGHT.
$$

PKZ351-220200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT SAT MAR 21 2009

...GALE WARNING SUNDAY...

.TODAY...N WIND 20 KT. SEAS 10 FT. 
.TONIGHT...W WIND 20 KT. SEAS 9 FT. 
.SUN...SE WIND 25 KT BECOMING E 35 KT IN THE AFTERNOON. SEAS 10 FT.
SNOW AND RAIN. 
.SUN NIGHT...SE WIND 40 KT. SEAS 14 FT. 
.MON...SW WIND 35 KT. SEAS 15 FT. 
.TUE...SW WIND 25 KT. SEAS 19 FT. 
.WED...SE WIND 25 KT. SEAS 11 FT.  

$$

PKZ352-220200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT SAT MAR 21 2009

...GALE WARNING SUNDAY...

.TODAY...NW WIND 25 KT. SEAS 10 FT. 
.TONIGHT...SE WIND 15 KT. SEAS 5 FT. 
.SUN...E WIND 40 KT. SEAS 10 FT. RAIN AND SNOW. 
.SUN NIGHT...SW WIND 35 KT. SEAS 12 FT. 
.MON...W WIND 40 KT. SEAS 16 FT. 
.TUE...SW WIND 25 KT. SEAS 19 FT. 
.WED...SE WIND 25 KT. SEAS 11 FT.  

$$

000 
FZAK61 PAFC 220001
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT MAR 21 2009

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.

PKZ399-221400-
400 PM AKDT SAT MAR 21 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 996 MB LOW AT 57N 141W WILL MOVE TO 60N 149W AT 997 MB SAT NIGHT
AND DISSIPATE SUN MORNING. A 987 MB LOW AT 52N 155W SAT NIGHT WILL
MOVE TO 59N 152W AT 988 MB MON AFTERNOON.

$$

PKZ351-221400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKDT SAT MAR 21 2009

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...W WIND 15 TO 25 KT. SEAS 5 TO 10 FT. HIGHEST WINDS AND
SEAS E OF 146W. 
.SUN...SE WIND 20 KT BECOMING E 35 KT IN THE AFTERNOON. SEAS 6 TO 10
FT. RAIN AND SNOW.
.SUN NIGHT...E WIND 40 KT. SEAS 15 FT. RAIN AND SNOW. 
.MON...SW WIND 40 KT. SEAS 16 FT. 
.MON NIGHT...SW WIND 40 KT. SEAS 19 FT. 
.TUE...SW WIND 25 KT. SEAS 18 FT. 
.WED...SE WIND 25 KT. SEAS 12 FT. 
.THU...S WIND 30 KT. SEAS 22 FT.  

$$

PKZ352-221400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKDT SAT MAR 21 2009

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SW WIND 20 KT BECOMING SE LATE. SEAS 8 FT. 
.SUN...E WIND 30 KT INCREASING TO 40 KT BY AFTERNOON. SEAS
11 FT. SNOW AND RAIN. 
.SUN NIGHT...SW WIND 40 KT. SEAS 12 FT. RAIN AND SNOW. 
.MON...W WIND 40 KT. SEAS 15 FT. 
.MON NIGHT...W WIND 40 KT. SEAS 20 FT. 
.TUE...SW WIND 25 KT. SEAS 19 FT. 
.WED...SE WIND 25 KT. SEAS 15 FT. 
.THU...SW WIND 35 KT. SEAS 24 FT.  

$$

000 
FZAK61 PAFC 221151
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SUN MAR 22 2009

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.

PKZ399-230200-
400 AM AKDT SUN MAR 22 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 987 MB LOW AT 52N 156W WILL MOVE TO 56N 148W THIS EVENING THEN TO
58N 151W AT 984 MB BY LATE MON MORNING. THIS LOW WILL THEN MOVE TO
58N 148W AND WEAKEN TO 998 MB BY LATE MON NIGHT.
$$

PKZ351-230200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT SUN MAR 22 2009

...GALE WARNING TONIGHT AND MONDAY...

.TODAY...SE WIND 15 KT BECOMING E 30 KT IN THE AFTERNOON. SEAS
BUILDING TO 8 FT. RAIN.
.TONIGHT...E WIND 40 KT. SEAS 16 FT. RAIN AND SNOW. 
.MON...SE WIND 35 KT. SEAS 16 FT. RAIN AND SNOW. 
.MON NIGHT...SW WIND 40 KT. SEAS 21 FT. 
.TUE...SW WIND 30 KT. SEAS 21 FT. 
.WED...S WIND 30 KT. SEAS 14 FT. 
.THU...W WIND 30 KT. SEAS 24 FT.  

$$

PKZ352-230200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT SUN MAR 22 2009

...GALE WARNING THROUGH MONDAY...

.TODAY...SE WIND 25 KT BECOMING E 35 KT IN THE AFTERNOON. SEAS
10 FT. 
.TONIGHT...E WIND 35 KT BECOMING W 25 KT AFTER MIDNIGHT. SEAS 11 FT.
.MON...W WIND 45 KT. SEAS 17 FT. 
.MON NIGHT...W WIND 45 KT. SEAS 22 FT. 
.TUE...SW WIND 25 KT. SEAS 17 FT. 
.WED...S WIND 35 KT. SEAS 18 FT. 
.THU...SW WIND 40 KT. SEAS 26 FT.  

$$

000 
FZAK61 PAFC 230003
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SUN MAR 22 2009

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.

PKZ399-231400-
400 PM AKDT SUN MAR 22 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 988 MB LOW AT 54N 148W WILL MOVE TO 57N 150W MON EVENING. THIS LOW
WILL THEN MOVE TO 57N 144W AND WEAKEN TO 1002 MB BY TUE MORNING.

$$

PKZ351-231400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKDT SUN MAR 22 2009

...GALE WARNING THROUGH MONDAY NIGHT...

.TONIGHT...E WIND 30 TO 40 KT. SEAS 10 TO 14 FT. RAIN AND SNOW. 
.MON...E WIND 35 KT. SEAS 11 TO 16 FT. RAIN AND SNOW. 
.MON NIGHT...SW WIND 25 TO 40 KT. SEAS 14 TO 21 FT. RAIN AND SNOW
SHOWERS.
.TUE...S WIND 25 KT. SEAS 18 FT. 
.TUE NIGHT...SE WIND 30 KT. SEAS 12 FT. 
.WED...SE WIND 35 KT. SEAS 14 FT. 
.THU...SW WIND 35 KT. SEAS 28 FT. 
.FRI...SW WIND 30 KT. SEAS 24 FT.  

$$

PKZ352-231400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKDT SUN MAR 22 2009

...STORM WARNING MONDAY AND MONDAY NIGHT...

.TONIGHT...E WIND 20 TO 40 KT...STRONGEST E OF 148W. WIND BECOMING W
15 TO 25 KT LATE. SEAS 10 TO 14 FT. RAIN AND SNOW. 
.MON...W WIND 40 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS
13 TO 19 FT. 
.MON NIGHT...W WIND 40 TO 50 KT. SEAS 18 TO 25 FT. 
.TUE...W WIND 35 KT. SEAS 23 FT. 
.TUE NIGHT...SE WIND 30 KT. SEAS 14 FT. 
.WED...S WIND 35 KT. SEAS 19 FT. 
.THU...SW WIND 40 KT. SEAS 33 FT. 
.FRI...SW WIND 30 KT. SEAS 26 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
400 AM AKDT FRI MAR 20 2009

.ANALYSIS AND UPPER LEVELS...
STUBBORN BLOCKING RIDGE OVER NORTHEAST SIBERIA (REX CONFIGURATION)
WITH ASSOCIATED DOWNSTREAM TROUGH ALONG 140 DEGREES WEST LONGITUDE
AND A CLOSED CIRCULATION LOW OVER THE NORTHEAST GULF OF ALASKA. COLD
ADVECTION IN NORTHERLY FLOW FROM THE EASTER ALEUTIANS TO NEARLY THE
CANADIAN BORDER. LOW UNDERCUTTING THE SIBERIAN BLOCK CREATING WARM
ADVECTION OVER THE CENTRAL AND WESTERN ALEUTIANS.

.SHORT TERM FORECAST...
SIBERIAN BLOCK WILL SLOWLY RETROGRADE OVER THE NEXT FEW DAYS AND
TAKE ON MORE OF AN OMEGA LOOK AS THE LOW SOUTH OF THE WESTERN
ALEUTIANS CONNECTS WITH THE GULF LOW. MOST OF THE PRECIPITATION WILL
STAY SOUTH OF MAINLAND ALASKA THROUGH SATURDAY. SATURDAY NIGHT AND
SUNDAY THE MEAN TROUGH POSITION WILL FOLLOW THE RETROGRATION OF THE
SIBERIAN BLOCK AND ALLOW MORE MOISTURE TO MOVE INTO SOUTHERN ALASKA
FROM THE EAST AS SOUTHERLY FLOW DEVELOPS IN CYCLONIC FLOW.

.LONG TERM FORECAST...
THE ENTIRE PATTERN WILL CONTINUE TO SLOWLY RETROGRADE THROUGH NEXT
WEEK. ALTHOUGH THE NUMERICAL MODELS AGREE ON THE OVERALL PATTERN...
THE DETAILS IN HOW THE LOW ORIENTS ITSELF AND TIMING OF SHORT WAVE
FEATURES ARE NOT SO WELL DECIDED UPON. BASICALLY THE MEAN UPPER
TROUGH POSITION WILL BE ROUGHLY OVER THE EASTERN BERING SEA AND
CYCLONIC FLOW WILL DOMINATE THE ENTIRE STATE AND MOST OF THE BERING
SEA AND GULF OF ALASKA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...STORM WARNING 175 176.
         GALE WARNING 170 172.
         HEAVY FREEZING SPRAY 138 150 155 165 170 179.
FIRE WEATHER...NONE.

LUDWIG MAR 09