Wind Chill Advisory 26, NWS Anchorage, AK

909 
WWAK41 PAFC 240107
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
407 PM AKST SUN DEC 23 2012

AKZ125-241415-
/X.UPG.PAFC.BZ.A.0040.121224T1400Z-121225T1400Z/
/X.NEW.PAFC.BZ.W.0058.121224T1500Z-121225T1800Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
407 PM AKST SUN DEC 23 2012

...BLIZZARD WARNING IN EFFECT FROM 6 AM MONDAY TO 9 AM AKST
TUESDAY FROM TURNAGAIN PASS NORTH...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 6 AM MONDAY TO 9 AM AKST
TUESDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. 

* LOCATION...TURNAGAIN PASS NORTH TO INCLUDE PORTAGE VALLEY...EASTERN
  TURNAGAIN ARM...AND WHITTIER.

* SNOW...12 TO 30 INCHES. SNOW LIKELY WILL CONTINUE THROUGH
  TUESDAY INTO WEDNESDAY WITH ADDITIONAL ACCUMULATIONS LIKELY.

* VISIBILITY...REDUCED BELOW ONE QUARTER MILE AT TIMES IN HEAVY
  SNOW AND BLOWING SNOW.

* WIND...EAST WINDS 35 TO 50 MPH.

* TIMING...BLIZZARD CONDITIONS WILL DEVELOPING MONDAY MORNING AS
  SNOW INTENSIFIES AND WINDS INCREASE. HEAVY SNOW AND BLOWING SNOW
  WILL CONTINUE INTO LATE TUESDAY MORNING BEFORE SNOW BEGINS TO
  DIMINISH IN INTENSITY.

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

&&

$$

AKZ131-241415-
/X.CON.PAFC.WC.Y.0026.000000T0000Z-121224T1900Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
407 PM AKST SUN DEC 23 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM AKST MONDAY
THROUGH THOMPSON PASS...

* LOCATION...THOMPSON PASS.

* WIND...NORTH WIND GUSTING TO 40 MPH TODAY DIMINISHING TO 25 
  MPH TONIGHT. 

* WIND CHILL VALUES...35 TO 45 BELOW ZERO.

* TIMING...THE WIND CHILL THREAT SHOULD DIMINISH MONDAY 
  AFTERNOON AS AMBIENT AIR TEMPERATURES RISE ABOVE ZERO. 

* 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.

&&

$$

664 
WWAK41 PAFC 240602
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
902 PM AKST SUN DEC 23 2012

AKZ125-241915-
/X.CON.PAFC.BZ.W.0058.121224T1500Z-121225T1800Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
902 PM AKST SUN DEC 23 2012

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 AM MONDAY TO 9 AM
AKST TUESDAY FROM TURNAGAIN PASS NORTH...

* LOCATION...TURNAGAIN PASS NORTH TO INCLUDE PORTAGE VALLEY... 
  EASTERN TURNAGAIN ARM...AND WHITTIER. 

* SNOW...12 TO 30 INCHES. SNOW LIKELY WILL CONTINUE THROUGH 
  TUESDAY INTO WEDNESDAY WITH ADDITIONAL ACCUMULATIONS LIKELY. 

* VISIBILITY...REDUCED BELOW ONE QUARTER MILE AT TIMES IN HEAVY 
  SNOW AND BLOWING SNOW. 

* WIND...EAST WINDS 35 TO 50 MPH.

* TIMING...BLIZZARD CONDITIONS WILL DEVELOPING MONDAY MORNING AS 
  SNOW INTENSIFIES AND WINDS INCREASE. HEAVY SNOW AND BLOWING 
  SNOW WILL CONTINUE INTO LATE TUESDAY MORNING BEFORE SNOW 
  BEGINS TO DIMINISH IN INTENSITY. 

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

&&

$$

AKZ131-241915-
/X.NEW.PAFC.BZ.A.0041.121224T1800Z-121225T0600Z/
/X.CON.PAFC.WC.Y.0026.000000T0000Z-121224T1900Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
902 PM AKST SUN DEC 23 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM AKST MONDAY
THROUGH THOMPSON PASS...
...BLIZZARD WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
EVENING THROUGH THOMPSON PASS...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
EVENING. 

* LOCATION...THOMPSON PASS.

* SNOW...2 TO 5 INCHES.

* VISIBILITY...POSSIBLY REDUCED TO ONE QUARTER MILE AT TIMES.

* WIND...NORTHEAST WIND 15 TO 30 MPH WITH GUSTS TO 40 MPH.

* WIND CHILL VALUES...35 TO 45 BELOW ZERO.

* TIMING...WIND CHILLS WILL MODERATE MONDAY MORNING AS SNOW MOVES
  IN AND AIR TEMPERATURES RISE ABOVE ZERO. THIS IS EXPECTED TO BE
  A LIGHT ACCUMULATION EVENT...BUT THE SNOW WILL BE DRY AND PRONE
  TO BLOWING AROUND. THUS THERE IS POTENTIAL FOR BLIZZARD
  CONDITIONS BEGINNING MONDAY MORNING AND CONTINUING THROUGH
  MONDAY EVENING.  

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE FROM LOW
  WIND CHILLS. SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING
  SNOW MAY PRODUCE WHITE-OUT CONDITIONS AT TIMES. DRIVING MAY
  BECOME VERY DIFFICULT.

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.

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.

&&

$$

256 
WWAK41 PAFC 241425
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
525 AM AKST MON DEC 24 2012

AKZ131-250330-
/X.UPG.PAFC.BZ.A.0041.121224T1800Z-121225T0600Z/
/X.EXB.PAFC.BZ.W.0058.121224T1900Z-121225T0900Z/
/X.CON.PAFC.WC.Y.0026.000000T0000Z-121224T1900Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
525 AM AKST MON DEC 24 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM AKST THIS
MORNING THROUGH THOMPSON PASS...
...BLIZZARD WARNING IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT
AKST TONIGHT THROUGH THOMPSON PASS...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO MIDNIGHT
AKST TONIGHT. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. 

* LOCATION...THOMPSON PASS.

* SNOW...3 TO 8 INCHES.

* VISIBILITY...REDUCED TO ONE QUARTER MILE AT TIMES.

* WIND...NORTHEAST WIND 30 TO 50 MPH. 

* WIND CHILL VALUES...35 TO 45 BELOW THROUGH THOMPSON PASS THIS
  MORNING.

* TIMING...WIND CHILLS WILL MODERATE THROUGH THIS MORNING AS SNOW
  MOVES IN AND AIR TEMPERATURES RISE ABOVE ZERO. BLIZZARD
  CONDITIONS WILL DEVELOP THIS MORNING AS SNOWFALL INTENSIFIES.
  SNOW WILL DIMINISH LATE THIS EVENING AND BLIZZARD CONDITIONS
  SHOULD END. 

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE FROM LOW 
  WIND CHILLS. 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 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.

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.

&&

$$

AKZ125-250330-
/X.CON.PAFC.BZ.W.0058.121224T1500Z-121225T1800Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
525 AM AKST MON DEC 24 2012

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM AKST TUESDAY FROM
TURNAGAIN PASS NORTH...

* LOCATION...TURNAGAIN PASS NORTH TO INCLUDE PORTAGE VALLEY... 
  EASTERN TURNAGAIN ARM...AND WHITTIER. 

* SNOW...15 TO 30 INCHES. SNOW LIKELY WILL CONTINUE THROUGH
  TUESDAY INTO WEDNESDAY WITH ADDITIONAL ACCUMULATIONS.

* VISIBILITY...REDUCED BELOW ONE QUARTER MILE AT TIMES IN HEAVY 
  SNOW AND BLOWING SNOW. 

* WIND...EAST WINDS 35 TO 50 MPH WITH GUSTS TO 60 MPH.

* TIMING...BLIZZARD CONDITIONS WILL DEVELOP THIS MORNING AS SNOW
  INTENSIFIES AND WINDS INCREASE. HEAVY SNOW AND BLOWING SNOW WILL
  CONTINUE INTO LATE TUESDAY MORNING BEFORE SNOW BEGINS TO
  DIMINISH IN INTENSITY.

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

&&

$$

AKZ121-250200-
/X.NEW.PAFC.WW.Y.0034.121224T1500Z-121225T0200Z/
WESTERN KENAI PENINSULA-
INCLUDING THE CITIES OF...KENAI...SOLDOTNA...HOMER...
COOPER LANDING
525 AM AKST MON DEC 24 2012

...WINTER WEATHER ADVISORY FOR SNOW IN EFFECT UNTIL 5 PM AKST THIS
AFTERNOON SOUTH OF CLAM GULCH...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 5 PM AKST
THIS AFTERNOON.

* LOCATION...SOUTH OF CLAM GULCH. 

* SNOW...ADDITIONAL SNOW ACCUMULATIONS 4 TO 7 INCHES. 

* TIMING...SNOW WILL CONTINUE TO BE HEAVY AT TIMES THROUGH EARLY
  THIS AFTERNOON.

* IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES MAY BE LIMITED
  IN HEAVY SNOWFALL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 AM AKST SUN DEC 23 2012

.MODEL DISCUSSION...
MODELS IN THE SHORT TERM ARE IN GOOD AGREEMENT WITH THE EXCEPTION OF
THE LOW FORMING OFF THE FRONTAL BOUNDARY OVER THE ALEUTIANS EARLY
MONDAY. THE GFS HAS THE MAIN LOW CENTER MOVING FASTER ALONG THE
ALEUTIANS WHILE THE NAM AND EC HAVE THE MAIN LOW CENTER SLOWER. IN
THE MID TERM THE MODELS ARE STRUGGLING WITH THE PLACEMENT OF THE LOW
MOVING EASTWARD SOUTH OF THE ALEUTIANS TUESDAY NIGHT. THIS CONTINUES
INTO THE LONG TERM AS THE LOW MOVES TOWARD THE GULF.

.ANALYSIS AND UPPER LEVELS...
AN UPPER LEVEL LOW RESTS OVER THE SOUTHERN END OF KODIAK ISLAND AND
IS BRINGING A TROUGH OVER THE STATE THAT IS MAKING ITS WAY OVER THE
WEST COAST. THIS LOW IS BRINGING IN WARMER MOIST AIR INTO AREAS ALONG
THE GULF COAST. OUT WEST WEAK RIDGING REMAINS OVER THE CENTRAL BERING
THAT IS CONTINUING TO DIMINISH.

.SHORT TERM FORECAST...
SOUTHCENTRAL...THE LOW SITTING TO THE SOUTH OF KODIAK IS DEEPENING
AND IS BRINGING BANDS OF MOISTURE TO AREAS ALONG THE GULF COAST. THIS
WILL CONTINUE OVERNIGHT AND AS THE LOW TRACKS TO THE NORTH THROUGH
THE NIGHT THE PRECIP WILL PUSH FURTHER NORTH INTO THE MORE INTERIOR
LOCATIONS OF THE SOUTHCENTRAL. EARLY TUESDAY MUCH OF THE SOUTHCENTRAL
WILL SEE A SHORT BREAK WITH WEAK RIDGING MOVING IN AFTER THE LOW BUT
THAT WILL BE SHORT LIVED AS THE NEXT FRONT WILL HAVE ALREADY MADE IT
TO KODIAK BY TUESDAY AFTERNOON.

SOUTHWEST ALASKA...
THE LOW NEAR KODIAK IS BRINGING WAVES OF SNOW TO THE AREAS AROUND
BRISTOL BAY AND AS THE LOW MOVES NORTH OVERNIGHT SNOW WILL BECOME
MORE WIDESPREAD OVER SOUTHWEST ALASKA ON MONDAY. AS THE LOW
DISSIPATES MONDAY NIGHT THE SNOW WILL ALSO DROP OFF CLEARING OUT THE
AREA UNTIL TUESDAY AFTERNOON WHEN THE NEXT FRONT MAKES ITS WAY TO THE
REGION BRINGING IN MORE SNOW.

BERING SEA AND ALEUTIAN ISLANDS...
NORTHERLY FLOW OVER THE EASTERN BERING AND EASTERN ALEUTIANS IS
BRINGING CLOUD COVER AND ISOLATED SHOWERS TO THE BERING SIDE OF THE
ISLANDS. OUT WEST HIGH PRESSURE IS DOMINATING THE AREA AND THIS TREND
WILL CONTINUE UNTIL THE NEXT SYSTEM MOVES IN. THAT WILL START THIS
AFTERNOON FOR THE WESTERN ALEUTIANS AND THE FRONT ASSOCIATED WITH
THIS NEW SYSTEM WILL MAKE IT TO THE CENTRAL ALEUTIANS BY MONDAY
MORNING. MONDAY AFTERNOON THE FRONT WILL HAVE PUSHED INTO THE EASTERN
ALEUTIANS BRINGING MORE PRECIP TO THE ISLANDS.

.LONG TERM FORECAST...
IN THE LONG TERM MODELS ARE SHOWING AN ACTIVE PATTERN WITH MULTIPLE
LOWS PROGRESSING ACROSS THE SOUTHERN PART OF THE REGION FROM WEST TO
EAST. THIS MORE ACTIVE PATTERN LOOKS TO CONTINUE WELL INTO NEXT WEEK.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WATCH...125
MARINE...GALES...127 120 125 130 140 155 170 171 172 175 176 179
         HEAVY FREEZING SPRAY...126 127 121 130 140 141 160 165 185
FIRE WEATHER...NONE

DWK DEC 12