Winter Storm Warning 3, NWS Anchorage, AK

294 
WWAK42 PAFC 192001
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1101 AM AKST TUE FEB 19 2013

AKZ161-200900-
/X.CON.PAFC.WS.W.0003.130219T2100Z-130220T0900Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
1101 AM AKST TUE FEB 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST
TONIGHT...

* LOCATION...THROUGHOUT BRISTOL BAY. LOCALIZED BLIZZARD 
  CONDITIONS POSSIBLE IN THE AFTERNOON NORTH AND WEST OF KING 
  SALMON. 

* SNOW...4 TO 12 INCHES.

* VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES IN SNOW 
  AND BLOWING SNOW WITH LOCALIZED REDUCTIONS TO ONE QUARTER MILE 
  OR LESS IN THE AFTERNOON NORTH AND WEST OF KING SALMON. 

* WIND...NORTHEAST WIND 20 TO 35 MPH. GUSTS TO 50 MPH THROUGH 
  CHANNELED TERRAIN ALONG THE ALEUTIAN RANGE. 

* TIMING...TUESDAY AFTERNOON THROUGH LATE TUESDAY EVENING.

* IMPACTS...TRAVEL WILL BE DIFFICULT. VISIBILITIES WILL BE 
  SEVERELY LIMITED IN HEAVY SNOWFALL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WIND MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
VERY DIFFICULT. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY.

&&

$$

AKZ181-200600-
/X.NEW.PAFC.WW.Y.0016.130219T2100Z-130220T0600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
1101 AM AKST TUE FEB 19 2013

...WINTER WEATHER ADVISORY FOR BLOWING SNOW IN EFFECT UNTIL 9 PM
AKST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT UNTIL 9 PM
AKST THIS EVENING.

* LOCATION...ALASKA PENINSULA

* SNOW...1 TO 4 INCHES. 

* VISIBILITY...AROUND ONE HALF MILE IN MODERATE SNOW AND BLOWING SNOW.

* WIND...NORTH WINDS 30 TO 45 MPH WITH GUSTS TO 55 TO 70 MPH.

* TIMING...SNOW AND WINDS WILL DEVELOP NEAR FALSE PASS THIS
  AFTERNOON AND SPREAD EAST THROUGH THE LATE AFTERNOON AND
  EVENING. 

* IMPACTS...A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
  VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING SNOW
  AROUND.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES
WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW.

&&

$$

866 
WWAK42 PAFC 200052
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
352 PM AKST TUE FEB 19 2013

AKZ161-200900-
/X.CON.PAFC.WS.W.0003.000000T0000Z-130220T0900Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
352 PM AKST TUE FEB 19 2013

...WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL
MIDNIGHT AKST TONIGHT...

* SNOW...ADDITIONAL SNOW ACCUMULATIONS 2 TO 5 INCHES. STORM TOTAL
  ACCUMULATIONS 4 TO 12 INCHES.

* VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES IN SNOW
  AND BLOWING SNOW.

* WIND...NORTHEAST WIND 15 TO 30 MPH. GUSTS TO 50 MPH THROUGH
  CHANNELED TERRAIN.

* TIMING...TUESDAY AFTERNOON THROUGH LATE TUESDAY EVENING.

* IMPACTS...TRAVEL WILL BE DIFFICULT. VISIBILITIES WILL BE 
  SEVERELY LIMITED IN HEAVY SNOWFALL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WIND MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
VERY DIFFICULT. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY.

&&

$$

AKZ155-201500-
/X.EXB.PAFC.WW.Y.0016.000000T0000Z-130220T1500Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
352 PM AKST TUE FEB 19 2013

...WINTER WEATHER ADVISORY FOR BLOWING SNOW IN EFFECT UNTIL 6 AM
AKST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 6 AM AKST WEDNESDAY. 

* SNOW...1 TO 4 INCHES. HIGHEST ACCUMULATIONS SOUTH OF BETHEL.

* VISIBILITY...AROUND ONE HALF MILE IN SNOW AND BLOWING SNOW.

* WIND...NORTH WINDS 15 TO 30 MPH. GUSTS TO 40 MPH. 

* TIMING...REDUCED VISIBILITIES WILL CONTINUE THROUGH THE NIGHT
  AND WILL IMPROVE EARLY WEDNESDAY MORNING.

* IMPACTS...A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS 
  THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING 
  SNOW AROUND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW.

&&

$$

AKZ181-200600-
/X.CON.PAFC.WW.Y.0016.000000T0000Z-130220T0600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
352 PM AKST TUE FEB 19 2013

...WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT
UNTIL 9 PM AKST THIS EVENING...

* LOCATION...ALASKA PENINSULA.

* SNOW...LITTLE ACCUMULATION EXPECTED.

* VISIBILITY...AROUND ONE HALF MILE IN BLOWING SNOW.

* WIND...NORTH WINDS 35 TO 50 MPH WITH GUSTS 70 MPH.

* TIMING...BLOWING SNOW WILL CONTINUE THROUGH THE EVENING.
  VISIBILITIES WILL IMPROVE LATE THIS EVENING AS WINDS WEAKEN.

* IMPACTS...A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS 
  THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING 
  SNOW AROUND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW.

&&

$$

906 
WWAK42 PAFC 200601
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
901 PM AKST TUE FEB 19 2013

AKZ181-200715-
/X.EXP.PAFC.WW.Y.0016.000000T0000Z-130220T0600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
901 PM AKST TUE FEB 19 2013

...WINTER WEATHER ADVISORY HAS EXPIRED...


$$

AKZ161-200900-
/X.CON.PAFC.WS.W.0003.000000T0000Z-130220T0900Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
901 PM AKST TUE FEB 19 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST
TONIGHT...

* SNOW...STORM TOTAL ACCUMULATIONS 4 TO 12 INCHES.

* VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES IN SNOW 
  AND BLOWING SNOW. 

* WIND...NORTHEAST WIND 15 TO 30 MPH. GUSTS TO 50 MPH THROUGH 
  CHANNELED TERRAIN. 

* TIMING...CONDITIONS ARE EXPECTED TO IMPROVE AROUND MIDNIGHT. 

* IMPACTS...TRAVEL WILL BE DIFFICULT. VISIBILITIES WILL BE 
  SEVERELY LIMITED IN HEAVY SNOWFALL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WIND MEANS
SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING.
SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL
VERY DIFFICULT. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...
KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN
CASE OF AN EMERGENCY.

&&

$$

AKZ155-201500-
/X.CON.PAFC.WW.Y.0016.000000T0000Z-130220T1500Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
901 PM AKST TUE FEB 19 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* SNOW...1 TO 4 INCHES. HIGHEST ACCUMULATIONS SOUTH OF BETHEL.

* VISIBILITY...AROUND ONE HALF MILE IN SNOW AND BLOWING SNOW.

* WIND...NORTH WINDS 15 TO 30 MPH. GUSTS TO 40 MPH.

* TIMING...REDUCED VISIBILITIES WILL CONTINUE THROUGH THE NIGHT 
  AND WILL IMPROVE EARLY WEDNESDAY MORNING. 

* IMPACTS...A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS 
  THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING 
  SNOW AROUND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW.

&&

$$

836 
WWAK42 PAFC 200902
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1202 AM AKST WED FEB 20 2013

AKZ161-201015-
/X.EXP.PAFC.WS.W.0003.000000T0000Z-130220T0900Z/
BRISTOL BAY-
INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK...
PILOT POINT
1202 AM AKST WED FEB 20 2013

...WINTER STORM WARNING HAS EXPIRED...

$$

AKZ155-201500-
/X.CON.PAFC.WW.Y.0016.000000T0000Z-130220T1500Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
1202 AM AKST WED FEB 20 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST
EARLY THIS MORNING...

* SNOW...1 TO 4 INCHES. HIGHEST ACCUMULATIONS SOUTH OF BETHEL.

* VISIBILITY...AROUND ONE HALF MILE IN SNOW AND BLOWING SNOW.

* WIND...NORTH WINDS 15 TO 30 MPH. GUSTS TO 40 MPH.

* TIMING...REDUCED VISIBILITIES WILL CONTINUE THROUGH THE NIGHT 
  AND WILL IMPROVE EARLY WEDNESDAY MORNING. 

* IMPACTS...A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS 
  THAT VISIBILITIES WILL BE LIMITED DUE TO STRONG WINDS BLOWING 
  SNOW AROUND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT
VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND
BLOWING SNOW.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
200 PM AKST MON FEB 18 2013

.MODEL DISCUSSION...MODEL SYNOPTIC INITIALIZATIONS REASONABLE. THE
ECMWF APPEARS TO HANDLE THE STORM TRACK BEST WITH THE NEXT LOW THE
MOVES TOWARD THE AK PEN TONIGHT/TUE. THE GFS ATTEMPTS TO TAKE THE
CENTER INTO BRISTOL BAY WHILE THE ECMWF KEEPS THE CENTER JUST SOUTH
OF THE AK PEN BEFORE SLIDING THE CENTER INTO THE GULF. THE ECMWF
TRACK SEEMS REASONABLE AS THE SOUTHERN EXTENT OF THE ICE EDGE AND
COLD DOME OVER THE SW MAINLAND SHOULD HELP TO HIGH PRESSURE IN PLACE
AND FORCE THE APPROACHING LOW CENTER TO STAY FURTHER SOUTH. AFTERNOON
PACKAGES WILL BE BASED ON PART ON THE ECMWF...WITH A LITTLE NAM IN
THE FIRST 24 HRS IN THE EAST.

.ANALYSIS AND UPPER LEVELS...
CLEARING SKIES ARE FOLLOWING A TROUGH WHICH IS MOVING EAST ACROSS THE
NORTH GULF AND COPPER RIVER BASIN TODAY. TEMPS SHOULD BE COLD ENOUGH
FOR TO SUPPORT SNOW WITH SYSTEM. THE DYNAMICS ARE NOT EVERY
STRONG...SO SHOULD NOT SEE SIGNIFICANT SNOWFALL WITH THIS SYSTEM.
MODERATE PRESSURE GRADIENTS ARE EXPECTED ALONG THE NORTH GULF COAST
WITH TROUGH PASSAGE. A STRONG LOW AND ITS ASSOCIATED FRONTAL
TROUGH OVER THE BERING SEA PRODUCED BLIZZARD CONDITIONS OVER THE
PRIBILOF ISLANDS OVERNIGHT AND THIS MORNING. THE LOW IS SLOWLY
WEAKENING AND DRIFTING NW. THE TEMPS ARE WARMING AS THE FRONTAL
TROUGH DRIFTS NORTH AND WEAKENS...SO CONDITIONS SHOULD CONTINUE TO
IMPROVE THROUGH THIS AFTERNOON. TEMPERATURES OVER THE SW MAINLAND
ARE MODERATING SOME THIS MORNING AS CLOUD COVER SPREADS OVER THE
AREA.

.SHORT TERM FORECAST...

.SOUTHCENTRAL ALASKA...CLEARING SHOULD SPREAD ACROSS MOST OF THE AREA
AS THE UPPER TROUGH CLEARS THE EASTERN COPPER RIVER BASIN OVERNIGHT.
INCREASING CLOUDS SPREAD TO THE WEST/SOUTH GULF AS WELL AS THE KENAI
PEN EARLY TUE MORNING WITH THE APPROACH OF THE LOW AND ACCOMPANYING
FRONTAL TROUGH. EXPECT THAT THE THE PRECIPITATION WILL START AS SNOW
AT KODIAK...BUT SHOULD SHIFT TO RAIN OR MIX BY AFTERNOON.
SNOW SHOULD IMPACT THE NORTH GULF TUE AFTERNOON/EVE WITH SOME
SPILLING OVER THE COLD AIR INLAND. TEMPS MAY WARM ENOUGH OVERNIGHT
TUE NIGHT ALONG THAT COASTS TO PRODUCE A SNOW/RAIN MIX. BLOWING SNOW
OVER THE EASTERN KENAI PEN(PORTAGE VALLEY/EASTERN TURNAGAIN ARM) MAY
BE A CONCERN...BUT IT IS FELT AT THIS POINT THAT THE TEMPS MAY WARM
TOO MUCH FOR BLIZZARD CONDITIONS.

.SW ALASKA...
WIND CHILLS OVER THE DELTA WILL MODERATE SOME THROUGH TONIGHT WITH
INCREASED CLOUD COVER EVEN THOUGH SURFACE WINDS WILL INCREASE SOME.
BLIZZARD CONDITIONS ARE LOOKING MORE DOUBTFUL OVER THE BRISTOL BAY
ZONE TUE AFTERNOON AS THE LOW TRACK IS EXPECTED TO GO FURTHER SOUTH.
HOWEVER...THERE IS STILL ENOUGH UNCERTAINTY IN THE LOW TRACK TO
CONTINUE THE BLIZZARD WATCH. PRECIPITATION WILL BE MIXED OVER THE AK
PEN WITH THE INITIAL APPROACH OF THE LOW TONIGHT...BUT SHOULD SEE
SNOW ON BLOWING SNOW BEHIND CENTER ON TUE AS THE CENTER TRACKS EAST.

.BERING SEA/ALEUTIANS...

STORM CENTER OVER THE EAST CENTRAL BERING SEA WILL MOVE NW AND WEAKEN
OVER THE NEXT 48 HRS. COLD AIR WILL WRAP AROUND THE SOUTHERN AND
EASTERN QUADS OF THE CENTER AS THE FLOW BACKS TO A MORE SOUTHERLY
DIRECTION. SO LOOK FOR UNSETTLED WEATHER WITH SHOWERS AS THIS CENTER
TRACKS NW.

.LONG TERM FORECAST...
THE ACTIVE WEATHER PATTERN FOR THE AREA LOOKS TO BREAK DOWN LATER
THIS WEEK AS MOST OF THE AREA WILL BE TRAPPED BETWEEN TWO STATIONARY
RIDGES OVER THE ARCTIC OCEAN AND CENTRAL PACIFIC. THIS SETUP WILL
CAUSE MUCH OF THE STATE TO MOVE INTO A STAGNANT WEATHER
PATTERN...WITH FEW FAST MOVING OR DEEP SYSTEMS TO SPEAK OF.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WATCH 161 AND BLIZZARD WARNING 131(THOMPSON PASS)
MARINE...STORM...155 185 411 412 413
         GALE...120 125 132 138 140 150 160 165 170 172 175 176 180
                195 414.
FIRE WEATHER...NONE.

RMC FEB 13
120 125 132 138 140