Gale Warning 258, NWS Anchorage, AK

000 
FZAK62 PAFC 272303
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT FRI MAR 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 FRI MAR 27 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1004 MB LOW NEAR 53N 174W WILL DISSIPATE FRI NIGHT. A 987 MB LOW
NEAR 50N 172W FRI NIGHT WILL MOVE TO 57N 162W AND STRENGTHEN TO 965
MB SAT NIGHT. THIS LOW WILL THEN MOVE INLAND TO 60N 160W AT 972 MB
SUN AFTERNOON.

$$

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

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 35 KT. SEAS 16 FT. FREEZING SPRAY. 
.SAT...N WIND 25 KT. SEAS 12 FT. FREEZING SPRAY. 
.SAT NIGHT...N WIND 20 KT. SEAS 10 FT. FREEZING SPRAY.
.SUN AND SUN NIGHT...N WIND 15 KT. SEAS 7 FT. 
.MON THROUGH TUE...E WIND 15 KT. SEAS 5 FT. 
.WED...NW WIND 20 KT. SEAS 7 FT.  

$$

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

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE WIND 25 KT. SEAS 9 FT. HEAVY FREEZING SPRAY. 
.SAT...NE WIND 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.SAT NIGHT...N WIND 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.SUN AND SUN NIGHT...NW WIND 20 KT. SEAS 7 FT. 
.MON...N WIND 15 KT. SEAS 6 FT. 
.TUE...NE WIND 20 KT. SEAS 5 FT. 
.WED...W WIND 25 KT. SEAS 9 FT.  

$$

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

...GALE WARNING THROUGH SATURDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TONIGHT...NE WIND 35 KT. SEAS BUILDING TO 14 FT. SNOW. HEAVY
FREEZING SPRAY. 
.SAT...NE WIND 35 KT. SEAS 15 FT. HEAVY FREEZING SPRAY. 
.SAT NIGHT...N WIND 30 KT. SEAS 14 FT. FREEZING SPRAY.
.SUN...NW WIND 20 KT. SEAS 12 FT. 
.SUN NIGHT...NW WIND 15 KT. SEAS 8 FT. 
.MON...E WIND 20 KT. SEAS 6 FT. 
.TUE...NE WIND 25 KT. SEAS 8 FT. 
.WED...NW WIND 20 KT. SEAS 9 FT.  

$$

PKZ414-281400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT FRI MAR 27 2009

...STORM WARNING SATURDAY AND SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE WIND INCREASING TO 25 KT. SEAS IN ICE FREE WATERS 5 
FT. SNOW. HEAVY FREEZING SPRAY. 
.SAT...NE WIND 40 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 14 FT. SNOW. HEAVY FREEZING SPRAY. 
.SAT NIGHT...N WIND 50 KT. SEAS IN ICE FREE WATERS 15 FT. SNOW AND
RAIN. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 40 KT. SEAS IN ICE FREE WATERS 12 FT. 
.SUN NIGHT...W WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.
.MON...NW WIND 20 KT. SEAS IN ICE FREE WATERS 8 FT. 
.TUE...NE WIND 30 KT. SEAS IN ICE FREE WATERS 8 FT. 
.WED...NW WIND 15 KT. SEAS IN ICE FREE WATERS 6 FT.  

$$

000 
FZAK62 PAFC 281200
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT MAR 28 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.

PKZ499-290200-
400 AM AKDT SAT MAR 28 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 988 MB LOW 49N 173W WILL MOVE INLAND NEAR CAPE NEWENHAM AT 966 MB
SUN MORNING. A 1003 MB LOW WILL DEVELOP NEAR 54N 173E SUN EVENING.
$$

PKZ411-290200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SAT MAR 28 2009

...HEAVY FREEZING SPRAY THROUGH SUNDAY...

.TODAY...N WIND 25 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 20 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 15 KT. SEAS 8 FT. SNOW. HEAVY FREEZING SPRAY. 
.SUN NIGHT...SW WIND 25 KT. SEAS 9 FT. 
.MON AND TUE...E WIND 30 KT. SEAS 8 FT. 
.WED...N WIND 25 KT. SEAS 11 FT.  

$$

PKZ412-290200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SAT MAR 28 2009

...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 25 KT. SEAS 8 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NW WIND 20 KT. SEAS 7 FT. 
.MON...NE WIND 25 KT. SEAS 7 FT. 
.TUE AND WED...E WIND 25 KT. SEAS 10 FT. 

$$

PKZ413-290200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SAT MAR 28 2009

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDA ...

.TODAY...NE WIND 40 KT. SEAS 15 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 30 KT. SEAS 14 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 25 KT. SEAS 12 FT. SNOW. HEAVY FREEZING SPRAY. 
.SUN NIGHT...W WIND 20 KT. SEAS 9 FT. 
.MON...SE WIND 25 KT. SEAS 8 FT. 
.TUE...E WIND 35 KT. SEAS 11 FT. 
.WED...NW WIND 25 KT. SEAS 12 FT.  

$$

PKZ414-290200-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SAT MAR 28 2009

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 40 KT INCREASING TO 50 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 15 FT. SNOW. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 45 KT. SEAS IN ICE FREE WATERS 15 FT. SNOW SHOWERS
AND RAIN. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 40 KT. SEAS IN ICE FREE WATERS 13 FT. HEAVY FREEZING
SPRAY. 
.SUN NIGHT...W WIND 30 KT. SEAS IN ICE FREE WATERS 11 FT.
.MON...W WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT. 
.TUE...NE WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT. 
.WED...E WIND 25 KT. SEAS IN ICE FREE WATERS 11 FT.  

$$

000 
FZAK62 PAFC 282301
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT MAR 28 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.

PKZ499-291400-
400 PM AKDT SAT MAR 28 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 967 MB LOW AT 54N 169W WILL MOVE INLAND NEAR CAPE NEWENHAM AT 964
MB SUN MORNING. A 1000 MB LOW WILL DEVELOP NEAR 52N 170E SUN NIGHT
AND MOVE TO NEAR 52N 174E AT 996 MB MON AFTERNOON. 

$$

PKZ411-291400-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT MAR 28 2009

.TONIGHT...N WIND 25 KT. SEAS 10 FT. FREEZING SPRAY. 
.SUN...NW WIND 20 KT. SEAS 8 FT. SNOW SHOWERS. FREEZING SPRAY. 
.SUN NIGHT...NW WIND 15 KT. SEAS 6 FT. 
.MON...NE WIND 25 KT. SEAS 8 FT. 
.MON NIGHT...E WIND 35 KT. SEAS 12 FT. 
.TUE...N WIND 35 KT. SEAS 12 FT. 
.WED...NW WIND 25 KT. SEAS 10 FT. 
.THU...W WIND 20 KT. SEAS 5 FT.  

$$

PKZ412-291400-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT MAR 28 2009

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...N WIND 40 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 30 KT. SEAS 11 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NW WIND 20 KT. SEAS 7 FT. HEAVY FREEZING SPRAY. 
.MON...NW WIND 20 KT. SEAS 6 FT. 
.MON NIGHT AND TUE...SE WIND 25 KT. SEAS 8 FT. 
.WED...NW WIND 25 KT. SEAS 9 FT. 
.THU...NW WIND 20 KT. SEAS 5 FT.  

$$

PKZ413-291400-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT MAR 28 2009

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...N WIND 50 KT DIMINISHING TO NW 35 KT AFTER MIDNIGHT. 
SEAS 21 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 30 KT. SEAS 16 FT. FREEZING SPRAY. 
.SUN NIGHT...W WIND 20 KT. SEAS 9 FT. SNOW SHOWERS. FREEZING SPRAY.
.MON...S WIND 20 KT. SEAS 7 FT. 
.MON NIGHT AND TUE...S WIND 30 KT. SEAS 11 FT. 
.WED...W WIND 30 KT. SEAS 12 FT. 
.THU...NW WIND 25 KT. SEAS 8 FT.  

$$

PKZ414-291400-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT MAR 28 2009

...STORM WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...NE WIND 50 KT. SEAS IN ICE FREE WATERS 18 FT. SNOW. 
HEAVY FREEZING SPRAY. 
.SUN...NW WIND 40 KT. SEAS IN ICE FREE WATERS 15 FT. SNOW. HEAVY
FREEZING SPRAY. 
.SUN NIGHT...W WIND 30 KT. SEAS IN ICE FREE WATERS 12 FT. HEAVY
FREEZING SPRAY. 
.MON...W WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT. 
.MON NIGHT...S WIND 15 KT. SEAS IN ICE FREE WATERS 6 FT.
.TUE...E WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT. 
.WED...S WIND 25 KT. SEAS IN ICE FREE WATERS 8 FT. 
.THU...N WIND 20 KT. SEAS IN ICE FREE WATERS 7 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
400 PM AKDT THU MAR 26 2009

.MODEL DISCUSSION...NAM MODEL IS DOING BETTER WITH THE DETAILS OF THE
LOW IN THE NORTHERN GULF. MODELS ARE OTHERWISE IN GOOD AGREEMENT
THROUGH SATURDAY AFTERNOON. AFTER THAT THERE IS SOME DISAGREEMENT TOT
THE ACTUAL TRACK OF A STRONG LOW THAT WILL MOVE NEAR THE TIP OF THE
ALASKA PENINSULA. DIFFERENCES ARE NOT EARTH SHATTERING THOUGH AND WE
ARE GOING MOSTLY WITH THE GFS AS GUIDANCE.

.ANALYSIS AND UPPER LEVELS...UPPER LEVEL TROUGH IS SITUATED OVER
WESTERN ALASKA AND EXTENDING OVER THE PRIBILOF ISLANDS. THE POSITION
OF THIS UPPER LEVEL TROUGH WILL REMAIN MOSTLY UNCHANGED INTO THE
WEEKEND. AT THE SURFACE THE LOW CENTER IS NEAR MIDDLETON ISLAND AND
WILL MOVE OVER THE EASTERN KENAI PENINSULA TONIGHT AND THEN SLOWLY
MOVE TO THE COPPER RIVER BASIN FRIDAY AFTERNOON.
THE 250 MB JET IS RUNNING FROM THE SOUTHWEST AND IS REMAINING SOUTH
OF THE AREA RIGHT NOW. IT WILL MOVE INTO THE GULF ON SATURDAY AS IT
STRENGTHENS A LOW THAT WILL MOVE NEAR THE ALASKA PENINSULA SATURDAY
AND SATURDAY NIGHT.

.SHORT TERM FORECAST...BLIZZARD CONDITIONS ALONG THE ALASKA PENINSULA
SHOULD END BY EARLY THIS EVENING THOUGH THERE WILL BE SOME LOCALLY
REDUCED VISIBILITIES FROM BLOWING SNOW THROUGH THE NIGHT...BUT NOT AS
BAD AS IT HAS BEEN.
THE LOW NEAR THE NORTH GULF COAST IS KEEPING THE BARRIER JET IN TACK
THIS AFTERNOON. IT SHOULD DIMINISH THIS EVENING AND THEN DISSIPATE AS
THE LOW MOVES INTO THE EASTERN KENAI PENINSULA TONIGHT. PRECIPITATION
SHOULD TURN BACK TO ALL SNOW AS THIS SYSTEM OCCLUDES AND THE WARM AIR
HEADS SOUTH OF THE AREA. THERE IS AN INCREASED POTENTIAL FOR SNOW IN
THE ANCHORAGE AREA LATE TONIGHT THROUGH FRIDAY NIGHT WITH THE LATEST
TRACK OF THIS LOW.

.LONG TERM FORECAST...IT APPEARS AS THOUGH THE PATTERN OF THE NEXT
THREE DAYS REPEATS...WITH ANOTHER STRONG LOW MOVING INTO THE NORTHERN
GULF ON SUNDAY BEFORE EVENTUALLY MOVING ONSHORE AND INTO THE COPPER
RIVER BASIN SOMETIME THE FIRST HALF OF NEXT WEEK.  THE LACK OF HIGH
PRESSURE TO THE NORTH AND EAST WITH THIS SYSTEM MAY HELP TO KEEP
WINDS FROM BECOMING QUITE AS STRONG IN THE NORTHERN GULF WITH THIS
NEXT SYSTEM AS THEY WERE WITH THIS ONE.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD 181.
MARINE...GALE 120 125 150 155 170 172 175 176.
         HEAVY FREEZING SPRAY 155 165 179.
FIRE WEATHER...NONE.

MAR 09

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1010 PM AKDT THU MAR 26 2009

AKZ121-101-111-145-271000-

...VERY LIGHT ASHFALL POSSIBLE FROM THE KENAI PENINSULA TO THE
SUSITNA VALLEY...

LIGHT SNOW SHOWERS ARE CURRENTLY MOVING FROM THE NORTHERN KENAI
PENINSULA TO THE MATANUSKA AND SUSITNA VALLEYS INCLUDING THE
ANCHORAGE BOWL. RESIDUAL ASH FROM THIS MORNINGS ERUPTIONS OF MT
REDOUBT MAY FALL AS THEY MOVE OVERHEAD. THESE SHOWERS ARE EXPECTED TO
MOVE OVER COOK INLET AND THEN DISSIPATE. ASHFALL AMOUNTS ARE EXPECTED
TO BE A TRACE OR LESS.

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1030 PM AKDT THU MAR 26 2009

AKZ121-125-101-111-145-271000-

...VERY LIGHT ASHFALL POSSIBLE FROM THE KENAI PENINSULA TO THE
SUSITNA VALLEY...

LIGHT SNOW SHOWERS ARE CURRENTLY MOVING FROM THE KENAI PENINSULA TO
THE MATANUSKA AND SUSITNA VALLEYS INCLUDING THE ANCHORAGE BOWL.
RESIDUAL ASH FROM THIS MORNINGS ERUPTIONS OF MT REDOUBT MAY FALL AS
THEY MOVE OVERHEAD. THESE SHOWERS ARE EXPECTED TO MOVE OVER COOK
INLET AND THEN DISSIPATE. ASHFALL AMOUNTS ARE EXPECTED TO BE A TRACE
OR LESS.

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE ANCHORAGE AK
125 AM AKDT FRI MAR 27 2009

AKZ101-111-271400-

...VERY LIGHT ASHFALL POSSIBLE ACROSS THE ANCHORAGE BOWL AND
MATANUSKA VALLEY...

MOUNT REDOUBT HAD A SERIES OF ERUPTIONS BEGINNING AT 1148 PM THURSDAY
NIGHT. LIGHT RAIN AND SNOW SHOWERS ARE CURRENTLY MOVING FROM THE
NORTHERN KENAI PENINSULA TO THE MATANUSKA VALLEY AND THE ANCHORAGE
BOWL. RESIDUAL ASH FROM THE ERUPTIONS MAY FALL AS THE SHOWERS
MOVE OVERHEAD. ASHFALL AMOUNTS ARE EXPECTED TO BE A TRACE
OR LESS.