Gale Warning 345, NWS Anchorage, AK

000 
FZAK61 PAFC 042306
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM ADT FRI APR 4 2008

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.

PKZ399-051400-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 997 MB LOW NEAR 57N 150W WILL MOVE TO 59N 146W AT 994 MB SAT
EVENING THEN DRIFT TO 58N 145W AT 997 MB SUN AFTERNOON.

$$

PKZ351-051400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM ADT FRI APR 4 2008

...GALE WARNING SATURDAY AND SATURDAY NIGHT...

.TONIGHT...SE WIND 25 KT. SEAS 11 FT. RAIN.
.SAT...SE WIND 25 BECOMING W AND INCREASING TO 40 KT BY AFTERNOON.
SEAS 15 FT. SNOW SHOWERS. 
.SAT NIGHT...W WIND 45 KT. SEAS 18 FT. 
.SUN...NW WIND 45 KT. SEAS 18 FT. 
.SUN NIGHT...N WIND 30 KT. SEAS 14 FT. 
.MON...W WIND 15 KT. SEAS 7 FT. 
.TUE...S WIND 35 KT. SEAS 11 FT. 
.WED...SW WIND 20 KT. SEAS 10 FT.  

$$

PKZ352-051400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM ADT FRI APR 4 2008

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...W WIND INCREASING TO 35 KT. SEAS 13 FT. RAIN.
.SAT...NW WIND 40 KT. SEAS 15 FT.
.SAT NIGHT...W WIND 35 KT. SEAS 16 FT. 
.SUN...W WIND 40 KT. SEAS 16 FT. 
.SUN NIGHT...NW WIND 35 KT. SEAS 16 FT. 
.MON...NW WIND 25 KT. SEAS 10 FT. 
.TUE...S WIND 35 KT. SEAS 12 FT. 
.WED...SW WIND 30 KT. SEAS 13 FT.  

$$

000 
FZAK61 PAFC 051158
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM ADT SAT APR 5 2008

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.

PKZ399-060200-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 999 MB LOW NEAR 57N 147W WILL MOVE SOUTHEAST AND DISSIPATE BY
SATURDAY EVENING. A 999 MB LOW WILL FORM NEAR 60N 148W SATURDAY
EVENING THEN MOVE TO NEAR 59N 144W AT 1002 MB SUNDAY NIGHT.
 
$$

PKZ351-060200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM ADT SAT APR 5 2008

...GALE WARNING THROUGH SUNDAY...

.TODAY...W WIND INCREASING TO 40 KT BY AFTERNOON. SEAS 8 TO 12 FT.
RAIN AND SNOW SHOWERS. 
.TONIGHT...W WIND 40 KT. SEAS 14 FT. 
.SUN...W WIND 40 KT. SEAS 15 FT. SNOW SHOWERS. 
.SUN NIGHT...W WIND 35 KT. SEAS 13 FT. 
.MON...W WIND 25 KT. SEAS 9 FT. 
.TUE...S WIND 35 KT. SEAS 11 FT. 
.WED...SW WIND 25 KT. SEAS 10 FT.  

$$

PKZ352-060200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM ADT SAT APR 5 2008

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW WIND 40 KT. SEAS 10 TO 15 FT. 
.TONIGHT...W WIND 35 KT. SEAS 10 TO 17 FT. 
.SUN...W WIND 30 KT. SEAS 10 TO 17 FT. 
.SUN NIGHT...W WIND 30 KT. SEAS 14 FT. 
.MON...SW WIND 25 KT. SEAS 10 FT. 
.TUE...S WIND 35 KT. SEAS 12 FT. 
.WED...SW WIND 30 KT. SEAS 12 FT.  

$$

000 
FZAK61 PAFC 052305
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM ADT SAT APR 5 2008

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.

PKZ399-061400-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 1001 MB LOW NEAR 60N 147W WILL MOVE TO 59N 141W MON MORNING AND
THEN DISSIPATE. A WEATHER FRONT WILL MOVE INTO THE SOUTHWEST GULF MON
AFTERNOON.

$$

PKZ351-061400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM ADT SAT APR 5 2008

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...W WIND 30 TO 40 KT. SEAS BUILDING TO 16 FT. 
.SUN...W WIND 30 TO 40 KT. SEAS 16 FT. SNOW SHOWERS. 
.SUN NIGHT...W WIND 35 KT. SEAS 13 FT. 
.MON...NW WIND 25 KT. SEAS 9 FT. 
.MON NIGHT...S WIND 25 KT. SEAS 7 FT. 
.TUE...E WIND 35 KT. SEAS 11 FT. 
.WED...NW WIND 25 KT. SEAS 11 FT. 
.THU...W WIND 15 KT. SEAS 7 FT.  

$$

PKZ352-061400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM ADT SAT APR 5 2008

...GALE WARNING TONIGHT...

.TONIGHT...W WIND 35 KT. SEAS 16 FT. 
.SUN...W WIND 30 KT. SEAS 16 FT. 
.SUN NIGHT...W WIND 30 KT. SEAS 14 FT. 
.MON...W WIND 25 KT. SEAS 10 FT. 
.MON NIGHT...S WIND 25 KT. SEAS 8 FT. 
.TUE...NW WIND 35 KT. SEAS 12 FT. 
.WED THROUGH THU...W WIND 30 KT. SEAS 12 FT. 

$$

000 
FZAK61 PAFC 061134
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM ADT SUN APR 6 2008

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.

PKZ399-070200-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 1001 MB LOW NEAR 60N 147W WILL MOVE TO NEAR 59N 140W MON MORNING
AND THEN DISSIPATE. A WEATHER FRONT WILL MOVE INTO THE SOUTHWEST 
GULF MON AFTERNOON WITH A 1001 MB LOW MOVING TO NEAR 55N 156W MON
NIGHT.

$$

PKZ351-070200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM ADT SUN APR 6 2008

...GALE WARNING TODAY...

.TODAY...W WIND 30 TO 40 KT. SEAS 10 TO 16 FT. SNOW SHOWERS. 
.TONIGHT...W WIND 20 TO 30 KT. SEAS 8 TO 13 FT. 
.MON...W WIND 25 KT DIMINISHING TO 15 KT IN THE AFTERNOON. SEAS
8 FT. 
.MON NIGHT...SW WIND 20 KT. SEAS 6 FT. 
.TUE...E WIND 30 KT. SEAS 10 FT. 
.WED...NW WIND 25 KT. SEAS 10 FT. 
.THU...W WIND 20 KT. SEAS 8 FT.  

$$

PKZ352-070200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM ADT SUN APR 6 2008

...GALE WARNING TODAY...

.TODAY...W WIND 30 TO 40 KT. SEAS 10 TO 16 FT. 
.TONIGHT...W WIND 15 TO 25 KT. SEAS 8 TO 14 FT. 
.MON...W WIND 20 KT. SEAS 7 FT. 
.MON NIGHT...S WIND 20 KT. SEAS 7 FT. 
.TUE AND WED...W WIND 30 KT. SEAS 10 FT.  
.THU...W WIND 25 KT. SEAS 10 FT.  

$$

000 
FZAK61 PAFC 062304
OFFAER

OFFSHORE WATERS FORECAST FOR GULF OF ALASKA WEST OF 144W
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM ADT SUN APR 6 2008

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.

PKZ399-071400-
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...

A 1001 MB LOW NEAR 59N 145W WILL MOVE TO NEAR 59N 140W MON MORNING
AND THEN DISSIPATE. A 1008 MB LOW NEAR 55N 154W SAT NIGHT WILL MOVE
TO 58N 143W AT 1000 MB TUE AFTERNOON.

$$

PKZ351-071400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM ADT SUN APR 6 2008

.TONIGHT...W WIND 25 KT. SEAS 12 FT. 
.MON...W WIND 15 KT. SEAS 8 FT. 
.MON NIGHT...VARIABLE WIND 10 KT. SEAS 6 FT. 
.TUE...SE WIND 15 KT. SEAS 7 FT. 
.TUE NIGHT...NW WIND 25 KT. SEAS 8 FT. 
.WED...W WIND 25 KT. SEAS 7 FT. 
.THU...W WIND 20 KT. SEAS 8 FT. 
.FRI...SW WIND 15 KT. SEAS 8 FT.  

$$

PKZ352-071400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM ADT SUN APR 6 2008

.TONIGHT...W WIND 25 KT. SEAS 13 FT. 
.MON...W WIND 15 KT. SEAS 9 FT. 
.MON NIGHT...S WIND 15 KT. SEAS 7 FT. 
.TUE...SW WIND 20 KT. SEAS 8 FT. 
.TUE NIGHT...NW WIND 25 KT. SEAS 10 FT. 
.WED...W WIND 25 KT. SEAS 8 FT. 
.THU...W WIND 25 KT. SEAS 10 FT. 
.FRI...SW WIND 15 KT. SEAS 8 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
255 PM ADT THU APR 3 2008

.MODEL DISCUSSION...
ALL MODELS ARE HANDLING PATTERN VERY REASONABLY AND ARE IN RELATIVE
AGREEMENT THROUGH 72 HOURS. ONE AREA OF CONCERN IS A DIFFERENCE
BETWEEN THE GFS MEAN ENSEMBLE AND THE OPERATIONAL GFS LATER THIS
WEEKEND IN THE EASTERN GULF. THE OPERATIONAL IS IN LINE WITH THE NAM
AND ECMWF SO HAVE MODERATE CONFIDENCE IN THIS SOLUTION.

.UPPER LEVELS...
COLD CORE UPPER LOW LOCATED NEAR THE CHUKOTSK PENINSULA WILL BEGIN
DIVING SOUTH TONIGHT WITH SOME ASSISTANCE FROM THE POLAR JET. THE
TROF AXIS WILL ROTATE EASTWARD ACROSS THE ALASKA PENINSULA AND INTO
THE NORTH GULF WHICH WILL ALLOW THE COLD AIR TO SPILL SOUTH AND EAST
ACROSS THE MAINLAND. A MORE CONCENTRIC UPPER LOW WILL EVENTUALLY
SETTLE BACK INTO A SIMILAR LOCATION SATURDAY AFTERNOON WITH
SHORTWAVES MOVING WEST TO EAST ALONG THE ALEUTIAN CHAIN.

.SHORT TERM FORECAST...
.SOUTHCENTRAL...SHORTWAVE TROF MOVED ACROSS THE EASTERN DOMAIN THIS
MORNING BROUGHT SOME LIGHT RAIN SHOWERS TO INLAND AREAS...WITH MORE
STEADY RAIN AND SNOW ALONG THE MOUNTAINS. THE NORTHERN SUSITNA
CONTINUES TO SEE PRECIPITATION WITH GENTLE LOW LEVEL UPSLOPE WINDS
PROVIDING THE NECESSARY LIFT. SKWENTNA REPORTED 8 INCHES OF SNOW OVER
THE PAST 24 HOURS BUT TEMPERATURES AT OR ABOVE FREEZING HAVING A
LIMITING EFFECT ON ACCUMULATIONS.

A SHORTWAVE RIDGE WILL MOVE OVERHEAD TONIGHT AND THEN QUICKLY EAST
AHEAD OF THE NEXT SYSTEM. PRECIPITATION WILL BEGIN OVERNIGHT AGAIN ON
KODIAK ISLAND IN THE FORM OF RAIN...POSSIBLY MIXED WITH SNOW INLAND.
A TRIPLE POINT LOW WILL DEVELOP JUST SOUTH OF THE ISLAND AND MOVE
INTO THE NORTHERN GULF FRIDAY EVENING. BEHIND THE LOW WILL BE THE
MUCH ADVERTISED COLD AIR ADVECTION SCREAMING THROUGH THE ALEUTIAN
RANGE. MAX GALES ARE LIKELY WITH STORM FORCE GUSTS THROUGH THE USUAL
AREAS IN THE COASTAL WATER ZONES. RAIN AND SNOW ALONG THE COAST WILL
CHANGE TO ALL SNOW AS THE COLD AIR ARRIVES SATURDAY NIGHT...AND THIS
WILL LIKELY INCLUDE ANCHORAGE. THERE HAVE BEEN SOME INCONSISTENCIES
IN THE AMOUNT OF COLD AIR AND LOCATION OF TROF AXIS AS IT SHIFTS INTO
THE GULF BUT OVERALL FEELING MORE CONFIDENT THAT ANCHORAGE WILL SEE
SOME SNOW OVER THE WEEKEND...MOST LIKELY SATURDAY EVENING. WILL
CONTINUE THE CHANCE OF SNOW WORDING AT THIS POINT.

.WEST OF THE ALASKA RANGE...985 MB SURFACE LOW LOCATED NORTHWEST OF
HOOPER BAY NEAR ST LAWRENCE ISLAND. STRONG SOUTHWESTERLY FLOW AT 925
MB MIXING DOWN TO THE SURFACE FROM BRISTOL BAY ALL THE WAY UP TO
MCGRATH. AN UNCHARACTERISTICALLY BREEZY DAY IN MCGRATH TODAY WITH
SOUTH WINDS 15 TO 30 KTS AND SNOW. WINDS ACROSS THE REGION WILL STAY
UP THROUGH THE EVENING.

STRONG COLD AIR WILL MOVE ONSHORE ACROSS THE KUSKOKWIM DELTA EARLY
TOMORROW MORNING AND CONTINUE INLAND THROUGH THE DAY. BY LATE FRIDAY
NIGHT...THE FRONT WILL HAVE MADE IT TO THE ALASKA RANGE AND WILL
INCREASE THE GAP WINDS. ONCE AGAIN WILL HAVE TO CONSIDER FREEZING
SPRAY WITH SURFACE TEMPERATURES DROPPING INTO THE UPPER TEENS TO 20S
ACROSS THE ALASKA PENINSULA BY SATURDAY NIGHT AND SUNDAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALES 130 132 150 155.
FIRE WEATHER...NONE.

AB APR 08