Storm Warning 53, NWS Anchorage, AK

417 
FZAK61 PAFC 071247
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST SUN MAR 7 2010

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.

PKZ399-080300-
400 AM AKST SUN MAR 7 2010
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 993 MB LOW NEAR 62N 147W WILL SLOWLY WEAKEN THROUGH SUN AFTERNOON.
A 988 MB LOW NEAR 51N 170W WILL STRENGTHEN TO 969 MB AS IT MOVES TO
56N 155W BY SUN EVENING. THE LOW WILL CONTINUE TO STRENGTHEN TO 963
MB NEAR 59N 151W BY MON AFTERNOON AND MOVE INTO COOK INLET WEAKENING
TO 970 MB MON NIGHT.

$$

PKZ351-080300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST SUN MAR 7 2010

...STORM WARNING TONIGHT AND MONDAY...

.TODAY...SW WIND 15 TO 30 KT. SEAS 12 TO 17 FT. SNOW SHOWERS.
.TONIGHT...SE WIND 50 KT INCREASING TO 60 KT AFTER MIDNIGHT. SEAS
18 TO 24 FT. SNOW AND RAIN. 
.MON...S WIND 50 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
22 FT. SNOW AND RAIN SHOWERS. 
.MON NIGHT...SW WIND 40 KT. SEAS 21 FT. 
.TUE...SW WIND 30 KT. SEAS 20 FT. 
.WED...NW WIND 30 KT. SEAS 17 FT. 
.THU...W WIND 35 KT. SEAS 12 FT.  

$$

PKZ352-080300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST SUN MAR 7 2010

...STORM WARNING TONIGHT...

.TODAY...W WIND 25 KT BECOMING S 40 KT IN THE AFTERNOON. SEAS 18 FT.
SNOW.
.TONIGHT...S WIND 50 KT. SEAS 22 FT. RAIN AND SNOW SHOWERS. 
.MON...W WIND 45 KT. SEAS 23 FT. SNOW SHOWERS. 
.MON NIGHT...W WIND 45 KT. SEAS 22 FT. 
.TUE...W WIND 40 KT. SEAS 23 FT. 
.WED...NW WIND 45 KT. SEAS 22 FT. 
.THU...W WIND 45 KT. SEAS 18 FT.  

$$

029 
FZAK61 PAFC 080014
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST SUN MAR 7 2010

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.

PKZ399-081500-
400 PM AKST SUN MAR 7 2010
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 977 MB LOW NEAR 54N 158W WILL MOVE TO 59N 150W AT 963 MB MON
AFTERNOON AND THEN MOVE NEAR 61N 149W AT 980 MB TUE AFTERNOON.

$$

PKZ351-081500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST SUN MAR 7 2010

...STORM WARNING THROUGH MONDAY...

.TONIGHT...SE WIND 40 TO 50 KT INCREASING TO 50 TO 60 KT AFTER
MIDNIGHT. SEAS 19 FT. SNOW AND RAIN. 
.MON...S WIND 50 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
22 FT. RAIN AND SNOW SHOWERS. 
.MON NIGHT...SW WIND 40 KT. SEAS 21 FT. SNOW AND RAIN SHOWERS. 
.TUE...SW WIND 30 KT. SEAS 20 FT. 
.TUE NIGHT...W WIND 25 KT. SEAS 18 FT. 
.WED...W WIND 30 KT. SEAS 15 FT. 
.THU...W WIND 35 KT. SEAS 12 FT. 
.FRI...SW WIND 20 KT. SEAS 9 FT.  

$$

PKZ352-081500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST SUN MAR 7 2010

...STORM WARNING TONIGHT...

.TONIGHT...SE WIND 40 TO 50 KT BECOMING S 30 TO 40 KT AFTER 
MIDNIGHT. SEAS 22 FT. RAIN AND SNOW SHOWERS. 
.MON...SW WIND 35 TO 45 KT. SEAS 23 FT. RAIN SHOWERS. 
.MON NIGHT...W WIND 30 TO 40 KT. SEAS 22 FT. SNOW SHOWERS. 
.TUE...W WIND 30 TO 40 KT. SEAS 23 FT. 
.TUE NIGHT...W WIND 30 KT. SEAS 23 FT. 
.WED...NW WIND 40 KT. SEAS 17 FT. 
.THU...W WIND 35 KT. SEAS 15 FT. 
.FRI...SW WIND 25 KT. SEAS 12 FT.  

$$

334 
FZAK61 PAFC 081240
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST MON MAR 8 2010

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.

PKZ399-090300-
400 AM AKST MON MAR 8 2010
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 963 MB LOW NEAR 57N 154W WILL MOVE TO 59N 150W AT 961 MB MON
AFTERNOON AND WILL MOVE INLAND OVER THE KENAI PENINSULA MON NIGHT.
THE LOW WILL WEAKEN OVER THE COOK INLET REGION THROUGH TUE NIGHT.

$$

PKZ351-090300-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKST MON MAR 8 2010

...STORM WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING TONIGHT AND TUESDAY...

.TODAY...S WIND 50 KT DIMINISHING TO 35 KT IN THE AFTERNOON. SEAS
20 FT. RAIN AND SNOW SHOWERS. 
.TONIGHT...SW WIND 40 KT. SEAS 23 FT. HEAVY FREEZING SPRAY. 
.TUE...SW WIND 30 KT. SEAS 22 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.TUE NIGHT...W WIND 25 KT. SEAS 20 FT. 
.WED...W WIND 30 KT. SEAS 16 FT. 
.THU...W WIND 35 KT. SEAS 13 FT. 
.FRI...SW WIND 20 KT. SEAS 10 FT.  

$$

PKZ352-090300-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKST MON MAR 8 2010

...GALE WARNING THROUGH TUESDAY...
...HEAVY FREEZING SPRAY WARNING TUESDAY...

.TODAY...W WIND 45 KT. SEAS 23 FT. RAIN SHOWERS. 
.TONIGHT...W WIND 45 KT. SEAS 25 FT. SNOW SHOWERS. FREEZING SPRAY. 
.TUE...W WIND 40 KT. SEAS 26 FT. SNOW SHOWERS. HEAVY FREEZING SPRAY.
.TUE NIGHT...W WIND 30 KT. SEAS 24 FT. 
.WED...NW WIND 45 KT. SEAS 16 FT. 
.THU...W WIND 45 KT. SEAS 16 FT. 
.FRI...SW WIND 30 KT. SEAS 14 FT.  

$$

314 
FZAK61 PAFC 090031
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST MON MAR 8 2010

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.

PKZ399-091500-
400 PM AKST MON MAR 8 2010
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 963 MB LOW AT 58N 148W MOVES TO 61N 148W LATE MON NIGHT AT 966 MB
AND THEN SLOWLY WEAKENS ON TUE AS IT REMAINS NEARLY STATIONARY.

$$

PKZ351-091500-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKST MON MAR 8 2010

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...SW WIND 40 KT. SEAS 22 FT. SNOW AND RAIN SHOWERS.
.TUE...SW WIND 35 KT. SEAS 22 FT. SNOW SHOWERS. 
.TUE NIGHT...W WIND 30 KT. SEAS 20 FT. SNOW SHOWERS. FREEZING SPRAY.
.WED...NW WIND 20 KT. SEAS 15 FT. 
.WED NIGHT...NW WIND 35 KT. SEAS 11 FT. 
.THU...W WIND 30 KT. SEAS 12 FT. 
.FRI...SW WIND 20 KT. SEAS 11 FT. 
.SAT...E WIND 40 KT. SEAS 12 FT.  

$$

PKZ352-091500-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKST MON MAR 8 2010

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...W WIND 45 KT. SEAS 24 FT. SNOW AND RAIN SHOWERS. 
.TUE...W WIND 40 KT. SEAS 24 FT. SNOW SHOWERS. 
.TUE NIGHT...W WIND 35 KT. SEAS 23 FT. SNOW SHOWERS. 
.WED...NW WIND 30 KT. SEAS 15 FT. 
.WED NIGHT...NW WIND 45 KT. SEAS 15 FT. 
.THU...W WIND 35 KT. SEAS 15 FT. 
.FRI...SW WIND 30 KT. SEAS 14 FT. 
.SAT...E WIND 40 KT. SEAS 12 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
300 PM AKST SAT MAR 6 2010

.MODEL DISCUSSION...MODELS ARE IN REASONABLE AGREEMENT IN THE GULF
THROUGH THREE DAYS AND THE BERING SEA FOR THE NEXT TWO. IN THE SHORT
TERM ONE ADVANTAGE THAT THE NAM HAS IS THAT IT IS THE ONLY ONE
DETECTING A MESO LOW THAT HAS DEVELOPED IN COOK INLET. THEREFORE THE
NAM WILL GIVE THE BEST INFORMATION FOR THE COOK INLET REGION THROUGH
TONIGHT.

.ANALYSIS AND UPPER LEVELS...A COLD UPPER LEVEL LOW REMAINS STRETCHED
OVER EASTERN RUSSIA INTO THE NORTHERN BERING SEA. THE UPPER TROUGH
EXTENDS SOUTHEASTWARD FROM THE LOW AND THROUGH THE GULF OF ALASKA.
THE 250 MB JET STREAM RUNS SOUTH OF THE LOW AND OVER THE WESTERN AND
CENTRAL ALEUTIANS BEFORE WEAKENING SOUTH OF THE ALASKA PENINSULA. THE
JET SUPPORT OVER THE GULF WHICH GREATLY ENHANCED FRIDAY STORM HAS
MOVED EASTWARD OVER SOUTHEAST ALASKA.
AT THE SURFACE THE LOW FROM FRIDAYS SOUTH CENTRAL ALASKA STORM IS
OVER THE CHUGACH MOUNTAINS AND THERE IS A RESIDUAL MESO LOW IN COOK
INLET. THE SURFACE LOW SOUTH OF KISKA WILL INTENSIFY AS IT MOVES
EASTWARD ALONG THE JET STREAM.

.SHORT TERM FORECAST...
THERE ARE A NUMBER OF AREAS THAT HAVE TRICKY FORECASTS OVER THE NEXT
12 TO 24 HOURS. COOK INLET IS THE FIRST AREA AS A PRONOUNCED MESO LOW
HAS DEVELOPED NEAR KENAI AND WILL DRIFT NORTHEASTWARD THROUGH THE
EVENING. THERE ARE SOME SNOW BANDS AROUND THIS LOW WHICH WILL BRING
SOME DECENT SNOWFALL UNDER THEM. KACHEMAK BAY IS RECEIVING THE WORST
OF IT AS OF EARLY AFTERNOON AND THE SPEED OF THIS LOWS MOVEMENT
NORTHEASTWARD WILL DETERMINE WHEN IT IMPROVES THERE.
A POLAR VORTEX APPROACHING THE PRIBILOF ISLANDS WILL BRING MORE SNOW
SHOWERS AND GUSTY WINDS THIS EVENING. SNOW SHOWERS ACROSS THE ALASKA
PENINSULA AND ALEUTIAN ISLANDS WILL BRING PERIODS OF REDUCED
VISIBILITIES IN BLOWING SNOW THROUGH THE NIGHT.
OVER THE COURSE OF THE NEXT TWO DAYS THE UPPER LOW IN THE BERING SEA
WILL STRENGTHEN AS WELL AS THE JET STREAM. THE LOW WILL NOT MOVE MUCH
BUT THE JET WILL EDGE FARTHER EASTWARD. THIS WILL CONTINUE TO BRING
COLD AIR INTO THE FORECAST AREA AS THE NEXT LARGE LOW TRAVELS ALONG
THE JET STREAM JUST SOUTH OF THE ALEUTIANS BEFORE CURVING NORTHWARD
INTO THE KENAI PENINSULA MON. THIS STORM LOOKS TO TAKE A SIMILAR PATH
TO THE ONE YESTERDAY AND WILL BRING MORE SNOW AND WINDS TO SOUTH
CENTRAL ALASKA AND THE GULF COAST MONDAY. SOUTHWEST ALASKA AND THE
ALASKA PENINSULA WILL SEE MORE WINDS AND SNOW SUNDAY AND SUNDAY NIGHT
WITH THIS SYSTEM.

.LONG TERM FORECAST...AFTER THE NEXT LOW MOVES THROUGH SOUTHERN
ALASKA BY TUESDAY THE UPPER LOW OVER THE BERING WILL SHIFT OVER SOUTH
CENTRAL ALASKA. THIS WILL BRING COLDER TEMPERATURES AND UNSETTLED
WEATHER INTO THE LATTER HALF OF NEXT WEEK WHILE NORTHWESTERLY FLOW
WILL KEEP SNOW SHOWERS IN THE FORECAST ACROSS THE BERING SEA AND
ALEUTIANS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE 120 130 132 138 140 150 155 165 170 179.
      HEAVY FREEZING SPRAY 121 129 130 132 138 140 141 155 165 170.
FIRE WEATHER...NONE.

EZ MAR 10