Gale Warning 601, NWS Anchorage, AK

000 
FZAK61 PAFC 301144
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT WED SEP 30 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.

PKZ399-010200-
400 AM AKDT WED SEP 30 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 994 MB LOW NEAR 58N 148W MOVES TO 57N 137W AND WEAKENS TO 1014 MB
THU EVENING. A WEAK RESIDUAL LOW PRESSURE TROUGH WILL CONTINUE OVER
THE NORTHERN GULF OF ALASKA THROUGH FRI MORNING.  
$$

PKZ351-010200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT WED SEP 30 2009

...GALE WARNING TONIGHT...

.TODAY...W WIND 30 KT. SEAS 11 FT. RAIN.
.TONIGHT...NW WIND 35 KT. SEAS 13 FT. RAIN.
.THU...NW WIND 30 KT. SEAS 13 FT. 
.THU NIGHT...NW WIND 25 KT. SEAS 10 FT. 
.FRI...SW WIND 25 KT. SEAS 9 FT. 
.SAT...S WIND 30 KT. SEAS 12 FT. 
.SUN...S WIND 25 KT. SEAS 10 FT.  
$$

PKZ352-010200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT WED SEP 30 2009

...GALE WARNING THROUGH TONIGHT...

.TODAY...W WIND 35 KT. SEAS 15 FT. 
.TONIGHT...W WIND 35 KT. SEAS 16 FT. 
.THU...W WIND 30 KT. SEAS 15 FT. 
.THU NIGHT...W WIND 25 KT. SEAS 11 FT. 
.FRI AND SAT...S WIND 30 KT. SEAS 13 FT. 
.SUN...S WIND 25 KT. SEAS 10 FT.  
$$

000 
FZAK61 PAFC 302343
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT WED SEP 30 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.

PKZ399-011400-
400 PM AKDT WED SEP 30 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 994 MB LOW AT 59N 144W MOVES ONSHORE NEAR 58N 137W LATE THURSDAY
AFTERNOON. A WEAK 1015 MB LOW WILL PERSIST OVER THE NORTHEAST GULF
THURSDAY NIGHT THROUGH FRIDAY AFTERNOON. 
$$

PKZ351-011400-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 PM AKDT WED SEP 30 2009

...GALE WARNING TONIGHT...

.TONIGHT...NW WIND 25 TO 35 KT. SEAS 10 TO 13 FT. RAIN.
.THU...NW WIND 20 TO 30 KT. SEAS 9 TO 12 FT. 
.THU NIGHT...NW WIND 15 TO 25 KT. SEAS 7 TO 10 FT. 
.FRI...SW WIND 15 KT. SEAS 7 FT. 
.FRI NIGHT...SE WIND 30 KT. SEAS 9 FT. 
.SAT...SE WIND 35 KT. SEAS 10 FT. 
.SUN...S WIND 25 KT. SEAS 9 FT. 
.MON...SW WIND 25 KT. SEAS 7 FT.  

$$

PKZ352-011400-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 PM AKDT WED SEP 30 2009

...GALE WARNING TONIGHT...

.TONIGHT...W WIND 25 TO 35 KT. SEAS 12 TO 16 FT. 
.THU...W WIND 30 KT. SEAS 15 FT. 
.THU NIGHT...W WIND 15 TO 25 KT. SEAS 8 TO 11 FT. 
.FRI...SE WIND INCREASING TO 30 KT. SEAS 8 TO 11 FT. 
.FRI NIGHT...SE WIND 30 KT. SEAS 9 FT. 
.SAT...SW WIND 25 KT. SEAS 10 FT. 
.SUN...S WIND 15 TO 25 KT. SEAS 6 TO 9 FT. 
.MON...SW WIND 15 TO 25 KT. SEAS 7 TO 10 FT.  

$$

000 
FZAK61 PAFC 011136
OFFAER

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT THU OCT 1 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.

PKZ399-020200-
400 AM AKDT THU OCT 1 2009
.SYNOPSIS FOR THE WESTERN GULF OF ALASKA...
A 1001 MB LOW NEAR 59N 142W WEAKENS TO 1016 MB AND MOVES INLAND NEAR
SITKA LATE TONIGHT. A WEAK RESIDUAL LOW PRESSURE TROUGH CONTINUES
OVER THE NORTHERN AND EASTERN GULF OF ALASKA THROUGH FRIDAY. A STRONG
WEATHER FRONT MOVES TO THE WESTERN GULF OF ALASKA FRIDAY NIGHT.
$$

PKZ351-020200-
GULF OF ALASKA OFFSHORE NORTH OF 57N AND WEST OF 144W
400 AM AKDT THU OCT 1 2009

.TODAY...NW WIND 30 KT. SEAS 13 FT. 
.TONIGHT...NW WIND 25 KT. SEAS 10 FT. 
.FRI...S WIND 15 KT. SEAS 6 FT. 
.FRI NIGHT...SE WIND 30 KT. SEAS 9 FT. 
.SAT...SW WIND 35 KT. SEAS 9 FT. 
.SUN...S WIND 25 KT. SEAS 8 FT. 
.MON...S WIND 30 KT. SEAS 13 FT.  
$$

PKZ352-020200-
GULF OF ALASKA OFFSHORE SOUTH OF 57N NORTH OF 55N AND WEST OF
144W
400 AM AKDT THU OCT 1 2009

.TODAY...W WIND 30 KT. SEAS 14 FT. 
.TONIGHT...W WIND 25 KT. SEAS 10 FT. 
.FRI...SW WIND 15 KT BECOMING S 30 KT IN THE AFTERNOON. SEAS 7 FT.
RAIN.
.FRI NIGHT...S WIND 30 KT. SEAS 9 FT. 
.SAT...SW WIND 25 KT. SEAS 9 FT. 
.SUN...S WIND 25 KT. SEAS 10 FT. 
.MON...S WIND 30 KT. SEAS 15 FT.  
$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AKDT TUE SEP 29 2009

.MODEL DISCUSSION...IN THE SHORT TERM (THROUGH SATURDAY) THE MODELS
MATCH EACH OTHER FAIRLY WELL BOTH IN STRENGTH AND TIMING OF THE MAIN
FEATURES MOVING EASTWARD IN THE PROGRESSIVE FLOW ACROSS THE ALEUTIANS
AND SOUTHERN ALASKA.

SHORT TERM...WEAK LOW JUST OFF THE EAST COAST OF KODIAK ISLAND IS A
TRIPLE POINT THAT DEVELOPED ALONG THE WASHED OUT FRONT THAT IS COMING
ACROSS SOUTHCENTRAL TODAY. ANCHORAGE 12Z RAOB SHOWS THE FREEZING
LEVEL AT 168 FT. WARMING ASSOCIATED WITH THE FRONT NOT ALL THAT MUCH
BUT ENOUGH TO PUT THE SNOW LEVEL IN THE 800 TO 1200 FT RANGE LATE
THIS AFTERNOON..LOWERING SOME OVER NIGHT. SOUTHWEST WIND FLOW BEHIND
TODAYS FRONT WILL KEEP SKIES CLOUDY WITH OCCASIONAL SNOW..LIGHT
SNOW..ABOVE THE 500 OR 800 FT LEVEL THROUGH WEDNESDAY MORNING. WET
SNOW COULD REACH THE LOWEST ELEVATIONS OVERNIGHT BUT AGAIN IT WILL BE
LIGHT WITH VERY LITTLE IF ANY ACCUMULATION.

DEVELOPING FRONTAL WAVE SOUTH OF THE ALASKA PENINSULA TO SLOWLY
STRENGTHEN AND MOVE TO JUST EAST OF PADQ TONIGHT. THIS LOW WILL MOVE
TO 100 NM SOUTHWEST OF YAKUTAT LATE WED NIGHT. TO THE WEST OF THIS
SYSTEM THE PRESSURE  GRADIENT WILL BECOME SIGNIFICANT ENOUGH FOR A
WIDESPREAD NW WIND WITH GALES KODIAK ILSE AND THE WESTERN GULF.
COOLER DRIER AIR WILL RIDE IN ON THESE WINDS BEGINNING WEDNESDAY
AFTERNOON. AT THIS POINT THE VERY COLD TEMPERATURES NOW ACROSS
NORTHERN ALASKA WILL STAY UP THERE SINCE THE UPPER LEVEL HIGH STAYS
PRETTY FLAT.

ANOTHER TYPICAL FALL STORM WILL MOVE INTO THE WESTERN ALEUTIANS WED
NIGHT AND THURSDAY WITH A FULL GALE ALONG AND IN ADVANCE OF THE
FRONT. THAT FRONT IS EXPECTED TO REACH THE SOUTHWEST COAST FRIDAY
MORNING AND REMAIN STRONG ENOUGH FOR MINIMUM GALES.

.LONG TERM FORECAST...MODELS HAVE BEEN VERY CONSISTENT SINCE LAST
SATURDAY IN BUILDING STRONG UPPER HIGH PRESSURE IN THE NORTHEAST
PACIFIC WITH THE RIDGE AXIS ALONG 140W OR SO. THE FORECAST AREA EAST
OF 160W WILL FALL UNDER A STRONG SOUTHWEST FLOW WITH THE AREA FROM
KODIAK ISLAND WEST TO UNALASKA GETTING THE HEAVIEST RAIN AND
STRONGEST WINDS. HOW MUCH EFFECT THESE FRONTS WILL HAVE ON THE NORTH
GULF COAST AND ZONE 141 AS WELL AS SOUTHCENTRAL ALASKA DEPENDS ON THE
EXACT DAY TO DAY POSITION OF THE JET. THE LONG WAVE PATTERN LOOKS
GOOD THE NEXT 7 DAYS BUT AS ALWAYS TIMING AND TRACK OF THE INDIVIDUAL
STORMS IS ALWAYS IN DOUBT.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...GALE AREAS 132..150..155..165..170..179.
FIRE WEATHER...NONE

DPERCY SEP 09