Blizzard Warning 17, NWS Anchorage, AK

882 
WWAK42 PAFC 251406
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
506 AM AKST MON FEB 25 2013

AKZ181-260300-
/X.CON.PAFC.BZ.W.0017.000000T0000Z-130226T0300Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
506 AM AKST MON FEB 25 2013

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

* SNOW...UP TO 2 INCHES...HEAVIEST ALONG THE PACIFIC SIDE.

* VISIBILITY...REDUCED TO A QUARTER MILE OR LESS AT TIMES.

* WIND...NORTH TO NORTHWEST 25 TO 45 MPH. GUSTS TO 60 MPH THROUGH
  CHANNELED TERRAIN.

* TIMING...STEADY SNOW WILL CONTINUE THROUGH THE MORNING HOURS
  THEN BECOME SHOWERY IN THE AFTERNOON AND EVENING. NORTHERLY
  WINDS WILL REMAIN STRONG THROUGH THE EVENING.

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW 
  WILL PRODUCE WHITE-OUT CONDITIONS AT TIMES. TRAVEL WILL BE 
  VERY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITE-OUT
CONDITIONS...MAKING TRAVEL VERY DIFFICULT. ALL TRAVEL AND OUTDOOR
ACTIVITY IS STRONGLY DISCOURAGED.

&&

$$

AKZ161-260315-
/X.UPG.PAFC.BZ.A.0013.130225T2100Z-130226T2100Z/
/X.NEW.PAFC.WW.Y.0019.130225T2100Z-130226T2100Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
506 AM AKST MON FEB 25 2013

...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IN EFFECT
FROM NOON TODAY TO NOON AKST TUESDAY...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM NOON TODAY TO NOON AKST TUESDAY. THE BLIZZARD WATCH IS NO
LONGER IN EFFECT. 

* SNOW...3 TO 7 INCHES. HIGHEST ACCUMULATIONS FROM DILLINGHAM
  NORTH.

* VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES MAINLY WEST OF
  KING SALMON. 

* WIND...NORTH WIND 20 TO 35 MPH.

* TIMING...SNOW WILL SPREAD WESTWARD THIS MORNING WITH THE
  HEAVIEST ACCUMULATIONS EXPECTED DURING THE AFTERNOON AND EVENING.
  WINDS WILL INCREASE THIS AFTERNOON AND PEAK THIS EVENING
  INTO EARLY TUESDAY MORNING.

* IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES MAY BE LIMITED
  IN SNOWFALL AND BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

AKZ155-260315-
/X.CON.PAFC.WC.Y.0007.000000T0000Z-130226T2000Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
506 AM AKST MON FEB 25 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM AKST
TUESDAY...

* WIND...NORTHWEST WIND 10 TO 25 MPH.

* WIND CHILL VALUES...30 BELOW TO 45 BELOW.

* TIMING...WIND CHILLS WILL MODERATE DURING THE DAY...THEN WILL AGAIN
  DROP TO 45 BELOW TONIGHT. TEMPERATURES WILL RAPIDLY RISE TUESDAY
  MORNING ENDING THE ADVISORY.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

078 
WWAK42 PAFC 260046
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
346 PM AKST MON FEB 25 2013

AKZ181-260900-
/X.EXT.PAFC.BZ.W.0017.000000T0000Z-130226T0900Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
346 PM AKST MON FEB 25 2013

...BLIZZARD WARNING NOW IN EFFECT UNTIL MIDNIGHT AKST TONIGHT...

* SNOW...UP TO 1 INCH ADDITIONAL ACCUMULATION.

* VISIBILITY...REDUCED TO A QUARTER MILE OR LESS AT TIMES.

* WIND...NORTH TO NORTHWEST 25 TO 40 MPH. GUSTS OF 60 TO 80 MPH
  THROUGH CHANNELED TERRAIN.

* TIMING...STEADY SNOW WILL BECOME SHOWERY BY LATE EVENING.
  NORTHERLY WINDS WILL REMAIN STRONG THROUGH THE EVENING.

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW 
  WILL PRODUCE WHITE-OUT CONDITIONS AT TIMES. TRAVEL WILL BE 
  VERY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITE-OUT
CONDITIONS...MAKING TRAVEL VERY DIFFICULT. ALL TRAVEL AND OUTDOOR
ACTIVITY IS STRONGLY DISCOURAGED.

&&

$$

AKZ161-261515-
/X.CON.PAFC.WW.Y.0019.000000T0000Z-130226T2100Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
346 PM AKST MON FEB 25 2013

...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW REMAINS IN
EFFECT UNTIL NOON AKST TUESDAY...

* SNOW...2 TO 6 INCHES ADDITIONAL ACCUMULATION. HIGHEST
  ACCUMULATIONS FROM DILLINGHAM NORTH.

* VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES MAINLY
  WEST OF KING SALMON.

* WIND...NORTH WIND 15 TO 30 MPH.

* TIMING...SNOW WILL CONTINUE THROUGHOUT THE NIGHT WITH THE
  HEAVIEST ACCUMULATIONS EXPECTED DURING THE EVENING. WINDS WILL
  DIMINISH BY LATE TUESDAY MORNING.

* IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES MAY BE LIMITED 
  IN SNOWFALL AND BLOWING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

AKZ155-261515-
/X.CON.PAFC.WC.Y.0007.000000T0000Z-130226T2000Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
346 PM AKST MON FEB 25 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM AKST
TUESDAY...

* WIND...NORTHWEST WIND 15 TO 30 MPH.

* WIND CHILL VALUES...30 BELOW TO 45 BELOW.

* TIMING...WIND CHILLS WILL DROP TO 45 BELOW LATE TONIGHT.
  TEMPERATURES WILL RAPIDLY RISE TUESDAY MORNING ENDING THE
  ADVISORY.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

AKZ195-261515-
/X.NEW.PAFC.BZ.A.0014.130227T0900Z-130228T0600Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
346 PM AKST MON FEB 25 2013

...BLIZZARD WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY EVENING. 

* SNOW...UP TO 2 INCHES.

* VISIBILITY...POSSIBLY REDUCED TO ONE QUARTER MILE OR LESS.

* WIND...NORTH WIND 25 TO 40 MPH.

* TIMING...SNOW WILL BEGIN TUESDAY EVENING WITH THE HIGHEST
  AMOUNTS WEDNESDAY MORNING. WINDS WILL PICK UP THROUGHOUT THE DAY
  TUESDAY AND REMAIN STRONG UNTIL WEDNESDAY EVENING.

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW
  MAY PRODUCE WHITE-OUT CONDITIONS AT TIMES. DRIVING MAY BECOME
  VERY DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITE-OUT CONDITIONS AND MAKE TRAVEL VERY
DIFFICULT.

&&

$$

640 
WWAK42 PAFC 260719
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1019 PM AKST MON FEB 25 2013

AKZ181-260830-
/X.CAN.PAFC.BZ.W.0017.000000T0000Z-130226T0900Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
1019 PM AKST MON FEB 25 2013

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE
BLIZZARD WARNING. 

WINDS ARE DIMINISHING AND VISIBILITY IMPROVING AS THE STORM PULLS
INTO THE GULF ENDING THE BLIZZARD THREAT.

$$

AKZ161-262030-
/X.CON.PAFC.WW.Y.0019.000000T0000Z-130226T2100Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
1019 PM AKST MON FEB 25 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON AKST
TUESDAY...

* SNOW...2 TO 6 INCHES ADDITIONAL ACCUMULATION. HIGHEST 
  ACCUMULATIONS FROM DILLINGHAM NORTH. 

* VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES MAINLY 
  WEST OF KING SALMON. 

* WIND...NORTH WIND 15 TO 30 MPH.

* TIMING...SNOW WILL CONTINUE THROUGHOUT THE NIGHT. WINDS WILL
  DIMINISH BY LATE TUESDAY MORNING.

* IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES MAY BE LIMITED 
  IN SNOWFALL AND BLOWING SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN
AREAS.

&&

$$

AKZ155-262000-
/X.CON.PAFC.WC.Y.0007.000000T0000Z-130226T2000Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
1019 PM AKST MON FEB 25 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM AKST
TUESDAY...

* WIND...NORTHWEST WIND 15 TO 30 MPH.

* WIND CHILL VALUES...30 BELOW TO 45 BELOW.

* TIMING...WIND CHILLS WILL DROP TO 45 BELOW LATE TONIGHT. 
  TEMPERATURES WILL RAPIDLY RISE TUESDAY MORNING ENDING THE 
  ADVISORY. 

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

AKZ195-262030-
/X.CON.PAFC.BZ.A.0014.130227T0900Z-130228T0600Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
1019 PM AKST MON FEB 25 2013

...BLIZZARD WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT
THROUGH WEDNESDAY EVENING THROUGH WEDNESDAY EVENING...

* SNOW...UP TO 2 INCHES.

* VISIBILITY...POSSIBLY REDUCED TO ONE QUARTER MILE OR LESS.

* WIND...NORTH WIND 25 TO 40 MPH.

* TIMING...SNOW WILL BEGIN TUESDAY EVENING WITH THE HIGHEST 
  AMOUNTS WEDNESDAY MORNING. WINDS WILL PICK UP THROUGHOUT THE 
  DAY TUESDAY AND REMAIN STRONG UNTIL WEDNESDAY EVENING. 

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW 
  MAY PRODUCE WHITE-OUT CONDITIONS AT TIMES. DRIVING MAY BECOME 
  VERY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITE-OUT CONDITIONS AND MAKE TRAVEL VERY
DIFFICULT.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
200 PM AKST SUN FEB 24 2013

.MODEL DISCUSSION...
GUIDANCE IS IN FAIRLY GOOD AGREEMENT THROUGH 84 HOURS. THERE ARE
SOME SMALL DIFFERENCES IN TIMING OF THE SURFACE LOWS AND
PRECIPITATION FIELDS...WITH GENERALLY THE GFS BEING FASTER WITH BOTH
FIELDS THAN THE ECMWF AND NAM. HOWEVER...THE GFS AND ECMWF (AND
UKMET AND GEM GLOBAL) ARE IN GOOD ENOUGH AGREEMENT TO LEND
CONFIDENCE TO THE FORECAST...WHILE THE NAM SEEMS TO BE A BIT OF
AN OUTLIER.

.ANALYSIS AND UPPER LEVELS...
FAIRLY ZONAL FLOW EXISTS ACROSS THE NORTH PACIFIC OCEAN. A SERIES
OF LOWS IN THIS FLOW WILL AFFECT SOUTHERN ALASKA OVER THE NEXT FEW
DAYS. THE GENERAL PROGRESSION OF THESE SYSTEMS IS TO SLIDE ALONG
ALONG OR JUST SOUTH OF THE ALEUTIANS AND THEN NORTHEAST INTO THE
GULF OF ALASKA. THE FIRST SYSTEM IS JUST EAST OF KODIAK AND IS
MOVING TO THE NORTHEAST AND WEAKENING. ANOTHER LOW IS SPINNING UP
SOUTH OF THE AKPEN/EASTERN ALEUTIANS WITH AN EAST/NORTHEAST
TRAJECTORY. ANOTHER SYSTEM THAT WILL EVENTUALLY AFFECT THE ALEUTIANS
IS FORMING ABOUT 1000 MILES SOUTHWEST OF WESTERN ALEUTIANS.

.SHORT TERM FORECAST...
THE KODIAK LOW WILL REACH THE GULF COAST TONIGHT AND DISSIPATE
MONDAY MORNING. THIS WILL CONTINUE TO BRING PRECIPITATION TO SOUTH
CENTRAL ALASKA TONIGHT...MAINLY FOR COASTAL AREAS...BUT SOME SHOWERS
WILL MOVE INLAND.

THE SECOND SYSTEM WILL CONTINUE TO WIND UP AND MOVE NORTHEAST. THIS
WILL BRING POSSIBLE BLIZZARD CONDITIONS TO THE AKPEN TONIGHT AND
MONDAY...AND TO THE BRISTOL BAY AREA MONDAY. THE MAIN LOW WILL MOVE
INTO THE GULF LATER MONDAY/MONDAY NIGHT. THIS SYSTEM WILL BE LARGER
THAN THE PREVIOUS ONE...BUT ALSO CENTERED FURTHER SOUTH.
PRECIPITATION AND WINDS FROM THIS SYSTEM WILL MOVE INTO SOUTH
CENTRAL ALASKA MONDAY AND TUESDAY. WITH ITS MORE SOUTHERLY TRACK
PRECIPITATION WILL BE MOSTLY CONFINED TO COASTAL AREAS EVEN MORE SO
THAN THE PREVIOUS SYSTEM. THIS LOW WILL REMAIN IN THE GULF AND
WEAKEN TUESDAY NIGHT AND WEDNESDAY.

THE SYSTEM SOUTHWEST OF THE WESTERN ALEUTIANS WILL CONTINUE TO
DEVELOP AND WILL MOVE INTO THE WESTERN ALEUTIANS MONDAY AFTERNOON.
THIS LOW WILL BE QUITE LARGE BY THIS TIME AND THE SURFACE PRESSURE
WILL BOTTOM OUT AROUND 970 MB. THE SYSTEM WILL MOVE INTO THE CENTRAL
ALEUTIANS BY MONDAY EVENING AND THE EASTERN ALEUTIANS TUESDAY. THIS
SYSTEM WILL THEN SLOW DOWN AND WEAKEN TUESDAY NIGHT AND WEDNESDAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WATCH 161 181.
MARINE...STORM WARNING 150 155 172 175.
         GALE WARNING 120 130 132 160 165 170 176 185.
         HEAVY FREEZING SPRAY 130 140 150 155 165 170 171 179.
FIRE WEATHER...NONE.

LUDWIG FEB 13