Gale Warning 910, NWS Anchorage, AK

000 
FZAK62 PAFC 020009
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST TUE DEC 1 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.

PKZ499-021500-
400 PM AKST TUE DEC 1 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 977 MB LOW NEAR 55N 162W WILL MOVE ON SHORE NEAR 59N 158W AT 990 MB
WED AFTERNOON. HIGH PRESSURE WILL BUILD INTO THE BERING SEA WED AND
REMAIN OVER THE NORTHERN BERING SEA THROUGH THU. A 960 MB LOW WILL
MOVE TO 48N 169W THU AFTERNOON.
$$

PKZ411-021500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST TUE DEC 1 2009

.TONIGHT...NE WIND 20 KT. SEAS 15 FT. SNOW SHOWERS. FREEZING SPRAY. 
.WED...E WIND 15 KT. SEAS 11 FT. 
.WED NIGHT...SE WIND 25 KT. SEAS 8 FT. FREEZING SPRAY. 
.THU...E WIND 30 KT. SEAS 10 FT. 
.THU NIGHT...NE WIND 50 KT. SEAS 16 FT. 
.FRI...NE WIND 55 KT. SEAS 31 FT. 
.SAT...NW WIND 45 KT. SEAS 32 FT. 
.SUN...N WIND 30 KT. SEAS 17 FT.  

$$

PKZ412-021500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST TUE DEC 1 2009

...HEAVY FREEZING SPRAY WARNING THROUGH WEDNESDAY...

.TONIGHT...N WIND 30 KT. SEAS 15 FT. HEAVY FREEZING SPRAY. 
.WED...N WIND 25 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.WED NIGHT...N WIND 15 KT. SEAS 8 FT. FREEZING SPRAY.
.THU...NE WIND 30 KT. SEAS 8 FT. 
.THU NIGHT...NE WIND 55 KT. SEAS 18 FT. 
.FRI...E WIND 55 KT. SEAS 29 FT. 
.SAT...SE WIND 45 KT. SEAS 29 FT. 
.SUN...E WIND 35 KT. SEAS 15 FT.  

$$

PKZ413-021500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST TUE DEC 1 2009

...GALE WARNING TONIGHT...

.TONIGHT...N WIND 40 KT. SEAS 16 FT. SNOW SHOWERS. FREEZING SPRAY. 
.WED...N WIND 20 KT. SEAS 12 FT. FREEZING SPRAY. 
.WED NIGHT...E WIND 15 KT. SEAS 9 FT. 
.THU...NE WIND 45 KT. SEAS 12 FT. 
.THU NIGHT...NE WIND 50 KT. SEAS 21 FT. 
.FRI...E WIND 50 KT. SEAS 28 FT. 
.SAT...SE WIND 45 KT. SEAS 25 FT. 
.SUN...E WIND 40 KT. SEAS 18 FT.  

$$

PKZ414-021500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST TUE DEC 1 2009

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

.TONIGHT...N WIND 40 KT. SEAS 14 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.WED...NW WIND 30 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.WED NIGHT...NW WIND 20 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.THU...E WIND 45 KT. SEAS 11 FT. 
.THU NIGHT...E WIND 45 KT. SEAS 18 FT. 
.FRI...SE WIND 50 KT. SEAS 23 FT. 
.SAT...SE WIND 45 KT. SEAS 21 FT. 
.SUN...E WIND 40 KT. SEAS 17 FT.  

$$

000 
FZAK62 PAFC 021202
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST WED DEC 2 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.

PKZ499-030300-
400 AM AKST WED DEC 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 995 MB LOW NEAR 53N 162E WILL MOVE TO 53N 170E THU AFTERNOON AT 
998 MB AND REMAIN NEARLY STATIONARY THROUGH THU NIGHT. A NORTH
PACIFIC LOW WILL MOVE TO 49N 170W THU NIGHT AT 960 MB. 

$$

PKZ411-030300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKST WED DEC 2 2009

.TODAY...E WIND 15 KT. SEAS 11 FT. 
.TONIGHT...SE WIND 25 KT. SEAS 8 FT. 
.THU...E WIND 30 KT. SEAS 11 FT. 
.THU NIGHT...NE WIND 50 KT. SEAS 30 FT. 
.FRI...NE WIND 55 KT. SEAS 35 FT. 
.SAT...N WIND 50 KT. SEAS 31 FT. 
.SUN...N WIND 30 KT. SEAS 18 FT.  

$$

PKZ412-030300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKST WED DEC 2 2009

...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...N WIND 25 KT. SEAS 12 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.TONIGHT...N WIND 15 KT. SEAS 9 FT. FREEZING SPRAY. 
.THU...NE WIND 20 KT INCREASING TO 30 KT IN THE AFTERNOON. SEAS
10 FT. FREEZING SPRAY. 
.THU NIGHT...NE WIND 55 KT. SEAS 30 FT. 
.FRI...E WIND 55 KT. SEAS 35 FT. 
.SAT...SE WIND 40 KT. SEAS 26 FT. 
.SUN...E WIND 35 KT. SEAS 18 FT.  

$$

PKZ413-030300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKST WED DEC 2 2009

...GALE WARNING THURSDAY...

.TODAY...N WIND 25 KT BECOMING N 15 KT IN THE AFTERNOON. SEAS 12 FT.
FREEZING SPRAY. 
.TONIGHT...E WIND 15 KT. SEAS 10 FT. 
.THU...E WIND 30 KT BECOMING NE 45 KT IN THE AFTERNOON. SEAS 15 FT. 
.THU NIGHT...NE WIND 50 KT. SEAS 28 FT. 
.FRI...E WIND 50 KT. SEAS 30 FT. 
.SAT...S WIND 40 KT. SEAS 21 FT. 
.SUN...E WIND 35 KT. SEAS 16 FT.  

$$

PKZ414-030300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKST WED DEC 2 2009

...GALE WARNING THURSDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...NW WIND 30 KT. SEAS 13 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.TONIGHT...NW WIND 20 KT. SEAS 10 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.THU...NE WIND 25 KT BECOMING E 45 KT IN THE AFTERNOON. SEAS 17 FT.
FREEZING SPRAY. 
.THU NIGHT...E WIND 50 KT. SEAS 26 FT. 
.FRI...SE WIND 50 KT. SEAS 30 FT. 
.SAT...SE WIND 45 KT. SEAS 22 FT. 
.SUN...E WIND 40 KT. SEAS 18 FT.  

$$

000 
FZAK62 PAFC 030024
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST WED DEC 2 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.

PKZ499-031500-
400 PM AKST WED DEC 2 2009
.SYNOPSIS FOR CENTRAL BERING SEA...

A 961 MB LOW AT 45N 169W THU AFTERNOON MOVES TO 52N 175W FRI EVENING
WITH LITTLE CHANGE IN PRESSURE AND THEN TO 55N 178E SAT AFTERNOON AT
969 MB.

$$

PKZ411-031500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST WED DEC 2 2009

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SE WIND 15 TO 25 KT. SEAS 6 TO 9 FT. FREEZING SPRAY. 
.THU...E WIND 25 TO 35 KT. SEAS 7 TO 10 FT. FREEZING SPRAY. 
.THU NIGHT...E WIND 30 TO 40 KT. SEAS 9 TO 14 FT. FREEZING SPRAY. 
.FRI...NE WIND 50 KT. SEAS 23 FT. 
.FRI NIGHT...N WIND 60 KT. SEAS 30 FT. 
.SAT...NW WIND 50 KT. SEAS 31 FT. 
.SUN...N WIND 30 KT. SEAS 20 FT. 
.MON...NE WIND 30 KT. SEAS 15 FT.  

$$

PKZ412-031500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST WED DEC 2 2009

...STORM WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...NW WIND 20 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.THU...NE WIND 20 KT. SEAS 8 FT. HEAVY FREEZING SPRAY. 
.THU NIGHT...NE WIND 35 KT INCREASING TO 50 KT AFTER MIDNIGHT. SEAS
10 FT BUILDING TO 16 FT AFTER MIDNIGHT. SNOW. HEAVY FREEZING SPRAY. 
.FRI...E WIND 50 KT. SEAS 21 FT. 
.FRI NIGHT...E WIND 55 KT. SEAS 24 FT. 
.SAT...SE WIND 35 KT. SEAS 24 FT. 
.SUN...E WIND 35 KT. SEAS 18 FT. 
.MON...E WIND 35 KT. SEAS 19 FT.  

$$

PKZ413-031500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST WED DEC 2 2009

...STORM WARNING THURSDAY NIGHT...

.TONIGHT...NE WIND 20 KT. SEAS 10 FT. FREEZING SPRAY. 
.THU...E WIND 20 KT BECOMING NE 30 KT IN THE AFTERNOON. SEAS 10 FT.
FREEZING SPRAY. 
.THU NIGHT...NE WIND 50 KT. SEAS 19 FT. SNOW.
.FRI...E WIND 50 KT. SEAS 23 FT. 
.FRI NIGHT...E WIND 40 KT. SEAS 23 FT. 
.SAT...SE WIND 35 KT. SEAS 20 FT. 
.SUN...E WIND 35 KT. SEAS 18 FT. 
.MON...E WIND 35 KT. SEAS 20 FT.  

$$

PKZ414-031500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST WED DEC 2 2009

...STORM WARNING THURSDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...NW WIND 10 TO 20 KT. SEAS 11 FT. SNOW SHOWERS. HEAVY
FREEZING SPRAY N OF 57N...FREEZING SPRAY ELSEWHERE.
.THU...NW WIND 15 KT BECOMING E 20 TO 30 KT IN THE AFTERNOON. SEAS 9
FT. FREEZING SPRAY. 
.THU NIGHT...E WIND 50 KT. SEAS 10 FT BUILDING TO 16 FT. SNOW.
FREEZING SPRAY. 
.FRI...E WIND 50 KT. SEAS 20 FT. 
.FRI NIGHT...SE WIND 50 KT. SEAS 22 FT. 
.SAT...SE WIND 35 KT. SEAS 18 FT. 
.SUN...E WIND 40 KT. SEAS 17 FT. 
.MON...E WIND 35 KT. SEAS 17 FT.  

$$

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 AM AKST TUE DEC 1 2009

.ANALYSIS AND UPPER LEVELS...

UPPER LEVEL TROUGH EXTENDS FROM EASTERN SIBERIA TO JUST WEST OF THE
ALCAN THIS MORNING WITH A RIDGE OVER SE AK. AT THE SURFACE A SLOWLY
WEAKENING LOW IS BETWEEN COLD BAY AND DUTCH HARBOR. A STRONG
NORTH-SOUTH WEATHER FRONT IS AIMED AT PRINCE WILLIAM SOUND. WATER
VAPOR SATPIX SHOWS A STRONG TROPICAL MOISTURE FEED EXTENDING FROM
WEAKENING TYPHOON NIDA IN THE WESTERN PACIFIC TO THE NORTH GULF
COAST. A WAVE IS DEVELOPING ALONG THE FRONT WELL SOUTH OF THE GULF.

.MODEL DISCUSSION...

MODELS ARE IN GENERALLY GOOD AGREEMENT. THE ALEUTIAN LOW MOVES INTO
BRISTOL BAY WED MORNING AND THEN INLAND TO NORTHWEST AK ON THU.
RIDGING BUILDS OVER THE BERING UNTIL A NORTH PACIFIC LOW APPROACHES
ADAK ON FRI. IN THE MEANTIME THE MOISTURE STREAM AND ASSOCIATED
PRECIPITATION WILL MOVE STRAIGHT NORTH OVER THE GULF TODAY. THE WAVE
MOVING NORTH ALONG THE FRONT WILL CAUSE THE FRONT TO CHANGE TO A
NORTHWEST/SOUTHEAST ALIGNMENT LATER THIS AFTERNOON AND
TONIGHT...WHICH WILL SERVE TO MOVE THE MOISTURE STREAM TO THE WEST.
ON WEDNESDAY THE FRONT DRIFTS TO THE NORTHEASTERN GULF COAST AND THE
MOISTURE STREAM TAKES AIM AT SOUTHEAST AK. THE FORECAST IS BASED ON
THE NAM AND GFS IN THE EARLY PERIODS AND THEN THE GFS/EC FOR THE
REMAINDER.

.SHORT TERM FORECAST...

IN THE WEST...COLD AIR RETURNS WITH SNOW SHOWERS AND GRADUALLY
DIMINISHING WINDS AS THE LOW WEAKENS AND MOVES INLAND. BY WED HIGH
PRESSURE BUILDS OVER THE BERING AND SHOWERS END. THE NEXT NORTH
PACIFIC LOW REACHES ADAK FRI AFTERNOON AFTER SPREADING SNOW AND RAIN
AND STORM FORCE WINDS ACROSS THE CHAIN BEGINNING THU.

FOR SOUTHWEST AK...SNOW SHOWERS WILL AFFECT THE AREA THROUGH THU
MORNING. AT THAT TIME THE LOW MOVES NORTH AND THE RIDGE BUILDS INTO
THE AREA. SNOW MOVES INTO THE AREA FROM THE NEXT PACIFIC LOW THU
NIGHT AND MIXES WITH RAIN FRI.

SOUTH AND EAST OF THE AK RANGE...HEAVY SNOW AT HIGHER ELEVATIONS OF
THE KENAI PENINSULA AND NORTH GULF COAST ZONES WITH RAIN AT LOWER
ELEVATIONS WILL FINALLY TAPER OFF TUE NIGHT. SNOW OVER THE NORTHERN
AK RANGE AND TALKEETNA MOUNTAINS TODAY WILL MOVE TO THE WESTERN AK
RANGE TONIGHT AS THE FRONT CHANGES ORIENTATION AND MOVES TO THE COAST
TUE MORNING. PRECIPITATION WILL DIMINISH TUE NIGHT INTO WED AND THEN
ANOTHER ROUND WILL AFFECT THE WESTERN AND CENTRAL COAST AS THE
ALEUTIAN LOW MOVES INLAND WED AND WED NIGHT. HIGH PRESSURE THEN
BUILDS INTO THE AREA BY FRI.

.LONG TERM FORECAST...

THE PACIFIC LOW WILL MOVE WEST FROM ADAK BRINGING STORMS AND RAIN TO
ALL OF THE BERING AND SW AK THROUGH THE WEEKEND AND BEYOND. THE
EASTERN FLANK OF THIS STORM WILL ALSO WARM ALL AREAS SE OF THE AK
RANGE DURING THE WEEKEND AND CONTINUING INTO NEXT WEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 135
         WINTER STORM WARNING 145
MARINE...STORM 120
         GALE 121 125 129 132 165 170 179 185
         HEAVY FREEZING SPRAY...180 185
FIRE WEATHER...NONE

DS DEC 09