Gale Warning 251, NWS Anchorage, AK

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
500 PM AKDT FRI MAR 20 2009

.MODEL DISCUSSION...
THE SHORT TERM MODELS ARE IN GOOD AGREEMENT BOTH OUT WEST AND IN THE
GULF.  THE DIFFERENCES WITH THE LOW MOVING INTO THE GULF SUNDAY
SEEMED TO HAVE RESOLVED ITSELF WITH THE NAM GFS AND EC COMING UP WITH
THE SAME GENERAL SOLUTION THROUGH MONDAY.

.ANALYSIS AND UPPER LEVELS...
AN UPPER LEVEL BLOCKING RIDGE REMAINS IN PLACE CENTERED OVER THE
KAMCHATKA PENINSULA. THE RIDGE WILL REMAIN NEARLY STATIONARY INTO THE
MIDDLE OF NEXT WEEK. THE UPPER TROUGH CENTERED OVER THE STATE WILL
SLOWLY DRIFT TO THE EAST BUT A CLOSED UPPER LOW WILL DROP DOWN INTO
THE EASTERN BERING AND DRIFT EAST FORMING A DEEP TROUGH OVER WESTERN
ALASKA BY SUNDAY NIGHT.  AN UPPER RIDGE OF HIGH PRESSURE WILL BUILD
INTO THE GULF OF ALASKA FOR THE PACIFIC BY WEDNESDAY MODERATING
TEMPERATURES SOMEWHAT OVER SOUTHCENTRAL.

.SHORT TERM FORECAST...
SOUTHCENRAL...COLD DRY CONDITIONS WILL CONTINUE OVER THE
SOUTHCENTERAL TONIGHT AND SATURDAY. GUSTY GAP WIND WILL THROUGH
VALDEZ AND THE COPPER RIVER WILL DIMINISH QUICKLY TONIGHT AS THE
GRADIENT WEAKENS. WITH THE LOW PRESSURE MOVING INTO THE GULF SATURDAY
EXPECT CLOUDS AND PRECIPITATION MOVING INTO THE COASTAL AREAS
SATURDAY AFTERNOON AND NIGHT. DEPENDING ON THE POSITIONING OF THE
LOW WE COULD SEE A CHANCE OF OVER THE ANCHORAGE BOWL WILL BE LATE
SATURDAY.

SOUTHWEST...WILL CONTINUE TO STAY COLD AND DRY INTO NEXT WEEK.

ALEUTIANS/BERING...BLIZZARD CONDITIONS WILL PERSIST FOR THE CENTRAL
ALEUTIANS THROUGH SATURDAY AFTERNOON WHILE THE STRONG FRONTAL SYSTEM
APPROACHES INTO THE EASTERN ALEUTIAN LATE TONIGHT IT MAY ALSO BRING
BLIZZARD CONDITIONS TO THE DUTCH HARBOR AREA LATE TONIGHT THROUGH
LATE SATURDAY NIGHT. BEHIND THE PRESENT SYSTEM PASSING TO THE SOUTH
OF THE ALEUTIANS HIGH PRESSURE WILL BUILD OVER THE BERING.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 187. BLIZZARD WATCH 185
MARINE...STORM WARNING 175 176.
         GALE WARNING 170 172.
         HEAVY FREEZING SPRAY 132 138 150 155 165 170 179.
FIRE WEATHER...NONE.

MAR 09