Storm Warning 245, NWS Anchorage, AK

158 
FZAK62 PAFC 020049
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST WED DEC 1 2010

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 WED DEC 1 2010
.SYNOPSIS FOR CENTRAL BERING SEA...
A 992 MB LOW AT 60N 176E WEAKENS TO 998 MB AT 62N 179W TONIGHT AND
THEN DISSIPATES THU MORNING. A 988 MB LOW AT 53N 167E WILL DEEPEN TO
973 MB AT 56N 176E THU MORNING AND THEN MOVES TO 61N 165W AT 979 MB
FRI AFTERNOON.
$$

PKZ411-021500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST WED DEC 1 2010

...STORM WARNING THROUGH THURSDAY...

.TONIGHT...S WIND 50 KT. SEAS 27 FT. SNOW AND RAIN. 
.THU...SW WIND 50 KT. SEAS 29 FT. SNOW AND RAIN. 
.THU NIGHT...NW WIND 45 KT. SEAS 25 FT. 
.FRI...NW WIND 40 KT. SEAS 23 FT. 
.FRI NIGHT...NW WIND 35 KT. SEAS 20 FT. 
.SAT...NW WIND 30 KT. SEAS 17 FT. 
.SUN...SW WIND 20 KT. SEAS 8 FT. 
.MON...S WIND 25 KT. SEAS 8 FT.  

$$

PKZ412-021500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST WED DEC 1 2010

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW WIND 30 KT INCREASING TO S 40 KT AFTER MIDNIGHT. SEAS
23 FT. SNOW AND RAIN. 
.THU...S WIND 40 KT. SEAS 23 FT. RAIN AND SNOW. 
.THU NIGHT...SW WIND 40 KT. SEAS 26 FT. SNOW AND RAIN SHOWERS. 
.FRI THROUGH SAT...NW WIND 40 KT. SEAS 25 FT. 
.SUN...NW WIND 25 KT. SEAS 12 FT. 
.MON...NE WIND 20 KT. SEAS 7 FT.  

$$

PKZ413-021500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST WED DEC 1 2010

...STORM WARNING THURSDAY...

.TONIGHT...S WIND 35 KT INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
23 FT. RAIN AND SNOW. 
.THU...SW WIND 50 KT. SEAS 25 FT BUILDING TO 31 FT IN THE AFTERNOON.
RAIN AND SNOW. 
.THU NIGHT...W WIND 45 KT. SEAS 31 FT. SNOW SHOWERS. 
.FRI THROUGH SAT...NW WIND 40 KT. SEAS 28 FT. 
.SUN...NW WIND 25 KT. SEAS 15 FT. 
.MON...W WIND 20 KT. SEAS 8 FT.  

$$

PKZ414-021500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST WED DEC 1 2010

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

.TONIGHT...W WIND 30 KT. SEAS 17 FT. 
.THU...S WIND 40 KT. SEAS 17 FT. RAIN AND SNOW. 
.THU NIGHT...SW WIND 40 KT. SEAS 19 FT BUILDING TO 27 FT AFTER
MIDNIGHT. RAIN AND SNOW. 
.FRI...W WIND 40 KT. SEAS 28 FT. 
.FRI NIGHT AND SAT...NW WIND 40 KT. SEAS 25 FT. 
.SUN...NW WIND 40 KT. SEAS 19 FT. 
.MON...N WIND 35 KT. SEAS 14 FT.  

$$

381 
FZAK62 PAFC 021239
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST THU DEC 2 2010

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 THU DEC 2 2010
.SYNOPSIS FOR CENTRAL BERING SEA...

A 975 MB LOW AT 55N 172E MOVES TO 59N 171W FRI MORNING WITH LITTLE
CHANGE IN STRENGTH AND THEN MAKES LANDFALL NEAR 60N 165W AT 980 MB
FRI NIGHT.

$$

PKZ411-030300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKST THU DEC 2 2010

...STORM WARNING TODAY...

.TODAY...SW WIND 50 KT. S OF 56N...SEAS 30 FT. N OF 56N...SEAS 20 FT.
SNOW AND RAIN. 
.TONIGHT...NW WIND 45 KT. SEAS 24 FT. SNOW AND RAIN SHOWERS. 
.FRI...NW WIND 40 KT. SEAS 24 FT. 
.FRI NIGHT...NW WIND 35 KT. SEAS 23 FT. 
.SAT...W WIND 30 KT. SEAS 17 FT. 
.SUN...S WIND 30 KT. SEAS 12 FT. 
.MON...W WIND 25 KT. SEAS 13 FT.  

$$

PKZ412-030300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKST THU DEC 2 2010

...GALE WARNING THROUGH FRIDAY...

.TODAY...S WIND 40 KT. SEAS 24 FT. RAIN AND SNOW. 
.TONIGHT...SW WIND 40 KT. SEAS 26 FT. SNOW AND RAIN. 
.FRI...NW WIND 45 KT. SEAS 24 FT. 
.FRI NIGHT...NW WIND 45 KT. SEAS 25 FT. 
.SAT...NW WIND 40 KT. SEAS 24 FT. 
.SUN...W WIND 35 KT. SEAS 14 FT. 
.MON...SW WIND 25 KT. SEAS 11 FT.  

$$

PKZ413-030300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKST THU DEC 2 2010

...STORM WARNING TODAY...

.TODAY...SW WIND 50 KT. SEAS 31 FT. RAIN AND SNOW. 
.TONIGHT AND FRI...W WIND 45 KT. SEAS 31 FT. SNOW SHOWERS.  
.FRI NIGHT AND SAT...NW WIND 40 KT. SEAS 28 FT.  
.SUN...W WIND 35 KT. SEAS 16 FT. 
.MON...W WIND 25 KT. SEAS 10 FT.  

$$

PKZ414-030300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKST THU DEC 2 2010

...GALE WARNING THROUGH FRIDAY...

.TODAY...S WIND 40 KT. SEAS 17 FT. RAIN AND SNOW. 
.TONIGHT...SW WIND 45 KT. SEAS 20 FT BUILDING TO 28 FT AFTER
MIDNIGHT. RAIN AND SNOW. 
.FRI...SW WIND 40 KT. SEAS 30 FT. 
.FRI NIGHT...NW WIND 40 KT. SEAS 29 FT. 
.SAT...NW WIND 45 KT. SEAS 25 FT. 
.SUN...N WIND 40 KT. SEAS 20 FT. 
.MON...N WIND 30 KT. SEAS 11 FT.  

$$

918 
FZAK62 PAFC 030026
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST THU DEC 2 2010

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 THU DEC 2 2010
.SYNOPSIS FOR CENTRAL BERING SEA...

A 972 MB LOW NEAR 57N 179E MOVES TO 57N 161W AND WEAKENS TO 987 MB
SATURDAY. HIGH PRESSURE BUILDS OVER THE WESTERN BERING SEA FRIDAY
AFTERNOON. 
$$

PKZ411-031500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST THU DEC 2 2010

...STORM WARNING TONIGHT...

.TONIGHT...NW WIND 50 KT. SEAS 27 FT. FREEZING SPRAY. 
.FRI...NW WIND 40 KT. SEAS 25 FT. FREEZING SPRAY. 
.FRI NIGHT...NW WIND 35 KT. SEAS 23 FT. FREEZING SPRAY. 
.SAT...NW WIND 25 KT. SEAS 19 FT. 
.SAT NIGHT...SW WIND 25 KT. SEAS 14 FT. 
.SUN...S WIND 30 KT. SEAS 12 FT. 
.MON...W WIND 25 KT. SEAS 13 FT. 
.TUE...N WIND 20 KT. SEAS 10 FT.  

$$

PKZ412-031500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST THU DEC 2 2010

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...W WIND 45 KT. SEAS 27 FT. SNOW AND RAIN. 
.FRI THROUGH SAT...NW WIND 45 KT. SEAS 26 FT. 
.SAT NIGHT...NW WIND 35 KT. SEAS 22 FT. 
.SUN...NW WIND 30 KT. SEAS 15 FT. 
.MON...SW WIND 25 KT. SEAS 11 FT. 
.TUE...N WIND 25 KT. SEAS 10 FT.  

$$

PKZ413-031500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST THU DEC 2 2010

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...W WIND 45 KT. SEAS 32 FT. SNOW AND RAIN. 
.FRI...W WIND 45 KT. SEAS 32 FT. 
.FRI NIGHT...NW WIND 45 KT. SEAS 29 FT. 
.SAT...NW WIND 40 KT. SEAS 29 FT. 
.SAT NIGHT...NW WIND 35 KT. SEAS 24 FT. 
.SUN...W WIND 30 KT. SEAS 17 FT. 
.MON...W WIND 25 KT. SEAS 10 FT. 
.TUE...N WIND 25 KT. SEAS 9 FT.  

$$

PKZ414-031500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST THU DEC 2 2010

...GALE WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...SW WIND 45 KT. SEAS 20 FT BUILDING TO 27 FT AFTER
MIDNIGHT. RAIN AND SNOW. 
.FRI...SW WIND 45 KT. SEAS 29 FT. 
.FRI NIGHT...NW WIND 45 KT. SEAS 28 FT. 
.SAT...NW WIND 45 KT. SEAS 25 FT. 
.SAT NIGHT...NW WIND 40 KT. SEAS 25 FT. 
.SUN...N WIND 35 KT. SEAS 19 FT. 
.MON AND TUE...N WIND 30 KT. SEAS 12 FT.  
$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
525 PM AKST TUE NOV 30 2010

.ANALYSIS AND UPPER LEVELS...
IN THE UPPER-LEVELS...A STACKED LOW IS OVER THE EASTERN GULF WITH
LITTLE UPPER LEVEL SUPPORT. COMBINED WITH A VERY COLD AIR MASS
INLAND...STRONG GAP FLOWS WERE PRESENT TODAY OVER SOUTH CENTRAL
ALASKA. IN ADDITION...A GOOD BORA WIND EVENT IN VALDEZ. NOT VERY
STRONG FLOW ALOFT FOR THE WIND EVENT IN VALDEZ BUT ALL IT NEEDED
WAS A PUSH. A RIDGE IS PUSHING ACROSS THE BERING AS A LOW MOVES
OFF THE KAMCHATKA PENINSULA. GOOD JET ROUNDING THE RIDGE OVER THE
BERING AND ENCIRCLING THE TROUGH OVER THE GULF.  FURTHER WEST...A
FRONT ASSOCIATED WITH THE LOW NEAR KAMCHATKA PUSHING ACROSS THE
BERING AND ALEUTIAN CHAIN TONIGHT TO MAKE ITS WAY TO THE WEST
COAST WEDNESDAY. GOOD WESTERLY JET IS HELPING THIS FRONT ALONG. A
STRONGER LOW TO MOVE INTO THE BERING WEDNESDAY.

.MODEL DISCUSSION...
MODELS DID A GOOD JOB ANALYZING THE CURRENT LOW IN THE GULF
EXCEPT THE GFS. SO FAVORED AN EC/NAM SOLUTION FROM THE GET GO
TODAY. THIS MEANS THE LOW IN THE EASTERN GULF WILL DISSIPATE BY
THURSDAY MORNING NEAR THE QUEEN CHARLOTTES ISLANDS. A TROUGH OF
LOW PRESSURE WILL REMAIN OVER THE GULF AND CONTINUE THE STRONG
PRESSURE GRADIENT THROUGH WEDNESDAY AND INTO THURSDAY.
HOWEVER...THE GRADIENT WILL BE LESS AS THE LOW WEAKENS THEN
DISSIPATES OVER THE NEXT 36 HOURS. ANOTHER WEAK LOW WILL CROSS
THE GULF THURSDAY AS A SHORT WAVE TROUGH WILL HELP PUSH THE RIDGE
ACROSS THE MAINLAND WEDNESDAY NIGHT AND THURSDAY WITH THE SHORT
WAVE MOVING INTO THE MAINLAND WEST COAST WEDNESDAY NIGHT. A
STRONGER LOW TO WRAP INTO THE UPPER LOW NEAR KAMCHATKA THURSDAY.
THIS LOW DEEPENS TO THE 970S AND CROSSES THE BERING THURSDAY
NIGHT WITH ITS ASSOCIATED FRONT REACHING THE COAST BY FRIDAY
MORNING. THIS FRONT WILL WORK INTO THE MAINLAND FRIDAY. THE LOW
WILL CROSS INTO THE GULF SATURDAY AND THEN BECOME A LARGE STACKED
LOW OVER THE GULF FOR THE REMAINDER OF THE WEEKEND AND INTO EARLY
NEXT WEEK WITH A RIDGE OVER THE BERING.

.SHORT TERM FORECAST...
SOUTHCENTRAL...
STRONG WINDS WILL DIMINISH SLOWLY OVERNIGHT FOR THE PRINCE
WILLIAM SOUND AREA EAST AS THE STRONGEST SUBSIDENCE DEPARTS AND
THE THE LOW IN THE GULF OF AK MOVES AWAY...RELAXING THE PRESSURE
GRADIENT. DRY AND COLD AIR WILL BE IN PLACE OVER THE NEXT 36
HOURS WITH SOME CLOUDS APPROACHING ON THURSDAY WITH A WEAKENING
FRONT. SOME SNOW MAY FALL ON HIGHER PEAKS AND OVER KODIAK ISLAND.
A GREATER CHANCE OF WINDS AND SNOW WILL ARRIVE WITH A STRONGER
FRONT ON FRIDAY INTO SATURDAY.

SOUTHWEST...
STRATUS AND LIGHT PRECIP WILL CONTINUE OVER THE WEST COAST
TONIGHT. A FRONT WILL MOVE INTO THE AREA TOMORROW WITH MORE
WIDESPREAD SNOWFALL. THE FRONT WILL WEAKEN AS IT MOVES INLAND
WEDNESDAY NIGHT. A BRIEF RESPITE OF PRECIP WILL BE PRESENT
THURSDAY. A STRONGER FRONT WILL PUSH INTO SOUTHWEST THURSDAY
NIGHT WITH WIDESPREAD SNOW.

BERING SEA/ALEUTIANS...
LIGHT RAIN HAS SPREAD THE CENTRAL/EASTERN ALEUTIAN CHAIN. A MID
970S MB LOW ADVANCES TO SHEMYA ON THURSDAY. THIS SYSTEM LOOKS TO
BRING WIDESPREAD GALE TO POSSIBLY STORM-FORCE WINDS TO THE BERING
AND ALEUTIAN CHAIN...ALONG WITH A LARGER MORE SUSTAINED SLUG OF
RAIN AND SNOW WEDNESDAY NIGHT THROUGH FRIDAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WARNING...131 135
MARINE...STORM 175 176 411
         GALE...130 132 150 155 165 172 412 413
         HEAVY FREEZING SPRAY...121 129 130
FIRE WEATHER...NONE

JN NOV 10