Blizzard Warning 6, NWS Fairbanks, AK

638 
WWAK41 PAFG 062248
WSWNSB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE FAIRBANKS AK
148 PM AKST FRI FEB 6 2015

AKZ204-070900-
/O.CON.PAFG.BZ.W.0006.000000T0000Z-150207T0900Z/
EASTERN BEAUFORT SEA COAST-
INCLUDING...KAKTOVIK...FLAXMAN ISLAND
148 PM AKST FRI FEB 6 2015

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

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT.

* BLOWING SNOW...REDUCING VISIBILITY TO ZERO AT TIMES.

* WINDS...WEST WINDS 25 TO 40 MPH. GUSTING TO 45 MPH.

* WIND CHILL...AROUND 50 BELOW.

* TIMING...WINDS DIMINISH AFTER MIDNIGHT WITH CONDITIONS 
  IMPROVING. TEMPERATURES ARE TRENDING DOWN. 

* IMPACTS...VISIBILITY WILL BE VERY POOR AND SNOW WILL 
  ACCUMULATE INTO DRIFTS. WHITEOUT CONDITIONS WILL OCCUR. TRAVEL 
  AND OUTDOOR ACTIVITIES WILL BE EXTREMELY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS IN
BLOWING SNOW WITH STRONG WINDS AND VERY POOR VISIBILITIES ARE
OCCURRING OR EXPECTED.

&&

$$

AKZ203-070900-
/O.CON.PAFG.WW.Y.0223.000000T0000Z-150208T0300Z/
CENTRAL BEAUFORT SEA COAST-
INCLUDING...NUIQSUT...PRUDHOE BAY...ALPINE...DEADHORSE...KUPARUK
148 PM AKST FRI FEB 6 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST
SATURDAY EAST OF NUIQSUT...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND
WIND CHILL REMAINS IN EFFECT UNTIL 6 PM AKST SATURDAY. 

* WINDS...WEST 15 TO 30 MPH.

* BLOWING SNOW...REDUCING VISIBILITY TO ONE HALF MILE OR LESS AT 
  TIMES. 

* WIND CHILL...AROUND 50 BELOW.

* TIMING...WINDS WEAKEN THIS EVENING BUT WILL INCREASE TOWARD 
  MORNING AS A SECOND FRONT MOVES TO THE EASTERN ARCTIC COAST. 
  TEMPERATURES ARE TRENDING DOWN. 

* IMPACTS...EXPOSED FLESH WILL FREEZE IN A SHORT TIME RESULTING 
  IN FROSTBITE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT ONE OR MORE WINTER WEATHER
HAZARDS ARE EXPECTED TO CAUSE TRAVEL DIFFICULTIES.

&&

$$

AKZ206-070900-
/O.CON.PAFG.WW.Y.0223.000000T0000Z-150208T0300Z/
NORTHEASTERN BROOKS RANGE-
INCLUDING...ANAKTUVUK PASS...ATIGUN PASS...GALBRAITH LAKE...
SAGWON...FRANKLIN BLUFFS
148 PM AKST FRI FEB 6 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST
SATURDAY...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILL REMAINS
IN EFFECT UNTIL 6 PM AKST SATURDAY. 

* LOCATION...THROUGH BROOKS RANGE PASSES.

* BLOWING SNOW...REDUCING VISIBILITY TO ONE HALF MILE OR LESS AT 
  TIMES. 

* WINDS...NORTH 15 TO 30 MPH.

* WIND CHILL VALUES...AROUND 50 BELOW.

* TIMING...WINDS DIMINISH A LITTLE OVERNIGHT THEN STRENGTHEN 
  SATURDAY. TEMPERATURES ARE TRENDING DOWN. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT DUE 
  TO REDUCED VISIBILITY IN BLOWING SNOW. EXPOSED FLESH WILL 
  FREEZE IN A SHORT TIME RESULTING IN FROSTBITE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT ONE OR MORE WINTER WEATHER
HAZARDS ARE EXPECTED TO CAUSE TRAVEL DIFFICULTIES.

&&

$$

971 
WWAK41 PAFG 070627
WSWNSB

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE FAIRBANKS AK
927 PM AKST FRI FEB 6 2015

AKZ204-071500-
/O.CAN.PAFG.BZ.W.0006.000000T0000Z-150207T0900Z/
/O.EXA.PAFG.WW.Y.0223.000000T0000Z-150208T0300Z/
EASTERN BEAUFORT SEA COAST-
INCLUDING...KAKTOVIK...FLAXMAN ISLAND
927 PM AKST FRI FEB 6 2015

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM AKST SATURDAY...

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILL...WHICH IS IN
EFFECT UNTIL 6 PM AKST SATURDAY. THE BLIZZARD WARNING HAS BEEN
CANCELLED.

* BLOWING SNOW...REDUCING VISIBILITY TO ONE HALF MILE OR LESS AT TIMES.

* WINDS...WEST 25 TO 35 MPH WITH OCCASIONAL GUSTS TO 45 MPH.

* WIND CHILL... TO 55 BELOW.

* TIMING...WINDS CONTINUE THROUGH SATURDAY.

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT DUE 
  TO REDUCED VISIBILITY IN BLOWING SNOW. EXPOSED FLESH WILL 
  FREEZE IN A SHORT TIME RESULTING IN FROSTBITE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT ONE OR MORE WINTER WEATHER
HAZARDS ARE EXPECTED TO CAUSE TRAVEL DIFFICULTIES.

&&

$$

AKZ203-071500-
/O.CON.PAFG.WW.Y.0223.000000T0000Z-150208T0300Z/
CENTRAL BEAUFORT SEA COAST-
INCLUDING...NUIQSUT...PRUDHOE BAY...ALPINE...DEADHORSE...KUPARUK
927 PM AKST FRI FEB 6 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST
SATURDAY EAST OF NUIQSUT...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND
WIND CHILL REMAINS IN EFFECT UNTIL 6 PM AKST SATURDAY. 

* WINDS...WEST 15 TO 30 MPH.

* BLOWING SNOW...REDUCING VISIBILITY TO ONE HALF MILE OR LESS AT 
  TIMES. 

* WIND CHILL...AROUND 50 BELOW.

* TIMING...WINDS WEAKEN THIS EVENING BUT WILL INCREASE TOWARD 
  MORNING AS A SECOND FRONT MOVES TO THE EASTERN ARCTIC COAST. 
  TEMPERATURES ARE TRENDING DOWN. 

* IMPACTS...EXPOSED FLESH WILL FREEZE IN A SHORT TIME RESULTING 
  IN FROSTBITE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT ONE OR MORE WINTER WEATHER
HAZARDS ARE EXPECTED TO CAUSE TRAVEL DIFFICULTIES.

&&

$$

AKZ206-071500-
/O.CON.PAFG.WW.Y.0223.000000T0000Z-150208T0300Z/
NORTHEASTERN BROOKS RANGE-
INCLUDING...ANAKTUVUK PASS...ATIGUN PASS...GALBRAITH LAKE...
SAGWON...FRANKLIN BLUFFS
927 PM AKST FRI FEB 6 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST
SATURDAY...

A WINTER WEATHER ADVISORY FOR BLOWING SNOW AND WIND CHILL REMAINS
IN EFFECT UNTIL 6 PM AKST SATURDAY. 

* LOCATION...THROUGH BROOKS RANGE PASSES.

* BLOWING SNOW...REDUCING VISIBILITY TO ONE HALF MILE OR LESS AT 
  TIMES. 

* WINDS...NORTH 15 TO 30 MPH.

* WIND CHILL VALUES...AROUND 50 BELOW.

* TIMING...WINDS DIMINISH A LITTLE OVERNIGHT THEN STRENGTHEN 
  SATURDAY. TEMPERATURES ARE TRENDING DOWN. 

* IMPACTS...TRAVEL AND OUTDOOR ACTIVITIES WILL BE DIFFICULT DUE 
  TO REDUCED VISIBILITY IN BLOWING SNOW. EXPOSED FLESH WILL 
  FREEZE IN A SHORT TIME RESULTING IN FROSTBITE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT ONE OR MORE WINTER WEATHER
HAZARDS ARE EXPECTED TO CAUSE TRAVEL DIFFICULTIES.

&&

$$

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
123 PM AKST FRI FEB 6 2015

.DISCUSSION...

MODELS...CONTINUE TO PERFORM WELL IN THE SHORT TERM WITH NO
SIGNIFICANT DIVERGENCE IN THE MODELS UNTIL THE MIDRANGE. THE MOST
SIGNIFICANT CHANGE FROM YESTERDAY IS THE EVOLUTION OF THE UPPER
LEVEL LOW OVER YAKUTAT AND KODIAK OVER THE NEXT 24 HOURS. TROUGH
IS BROADER AND SLIGHTLY STRONGER THAN YESTERDAYS 12Z RUNS. SINCE
THE MAIN DIFFERENCE IN THE MODEL RUNS IS JUST SMALL TIMING
DIFFERENCES...IN GENERAL WILL USE A BLEND OF THE MODELS TO NUDGE
THE CURRENT FORECAST PACKAGE.

ALOFT...AT 500 HPA...552 HPA BLOCKING RIDGE NEAR THE GULF OF
ANADYR IS SLOWLY BEING PUSHED TO THE WEST AS THE TROUGH DIGS IN
OVER THE SOUTHERN MAINLAND AND RIGOROUS SHORTWAVE ASSOCIATED WITH
A 501 DAM LOW MOVES DOWN THE BACKSIDE OF THE RIDGE TO THE
NORTHEAST ARCTIC COAST THIS AFTERNOON. THE SHORTWAVE WILL MERGE
WITH THE 500 DAM LOW OVER YAKUTAT THAT FORMED IN THE BASE OF THE
TROUGH THAT EXTENDS TO THE SOUTHWEST OUT OF CANADA. RIDGING WILL
BUILD BACK ACROSS THE ARCTIC COAST BEHIND THE SHORTWAVE TONIGHT.
THE LOW OVER YAKUTAT WILL SLOWLY MOVE OVER THE SOUTHERN YUKON
TONIGHT AS A 497 DAM LOW DEVELOPS OVER THE SHELIKOF STRAIT
TONIGHT. THE LOW OVER THE YUKON WILL MOVE NORTHEAST. THE LOW OVER
THE SHELIKOF STRAIT WILL CONTINUE TO STRENGTHEN AND DRIFT OVER
SAND POINT BY SATURDAY EVENING...THEN LOOP BACK OVER THE GULF OF
ALASKA AND MOVE TO PRINCE WILLIAM SOUND EARLY MONDAY. AS THE LOW
LOOPS BACK NORTH A 508 DAM LOW WILL DEVELOP OVER THE WESTERN
ALASKA PENINSULA AND MOVE WEST BEFORE MERGING WITH A LOW IN THE
NORTH PACIFIC. AT 850 HPA...20 BELOW CELSIUS ISOTHERM LIES FROM
POINT HOPE TO BETTLES TO DENALI AND BY SATURDAY MORNING WILL LIE
FROM BARROW TO KOTZEBUE TO BETHEL WITH TEMPERATURES IN THE 30S
BELOW ALONG THE ALCAN BORDER. BY SUNDAY MORNING THE 20 BELOW
ISOTHERM BEGINS MOVING BACK TO THE EAST AND WILL LIE FROM BARROW
TO RUBY TO HEALY AND BY MONDAY MORNING WILL LIE FROM BARROW TO
BETTLES TO TOK.

SURFACE...A FRONT EXTENDING SOUTH OVER THE ARCTIC COAST FROM A
983MB LOW IN THE HIGH ARCTIC WILL MOVE EAST OUT OF THE AREA EARLY
THIS EVENING. RIDGING CONTINUES TO BUILD ACROSS THE ARCTIC FROM A
1045MB RIDGE OVER THE RUSSIAN ARCTIC COAST. THE RIDGE WILL
CONTINUE TO BUILD SOUTH AND EAST THROUGH SATURDAY WITH A 1042MB
CENTER MOVING TO JUST NORTH OF WRANGEL ISLAND AND A 1040MB CENTER
DEVELOPING IN THE NORTHERN GULF OF ANADYR. A 1028MB CENTER WILL
DEVELOP OVER THE ARCTIC PLAINS THIS EVENING WITH A 1026MB CENTER
DEVELOPING OVER THE UPPER YUKON FLATS EARLY SATURDAY. A 965MB LOW
OVER PRINCE OF WALES ISLAND WILL MOVE TO THE NORTHERN GULF OF
ALASKA THIS EVENING...THEN MOVE TO JUST SOUTH OF KODIAK ISLAND BY
SATURDAY AFTERNOON. AS THE LOW MOVES WEST AND THE RIDGE OVER
RUSSIA BUILDS TO THE EAST AND SOUTH...AND THE RIDGE OVER THE YUKON
TERRITORY BUILDS...THE GRADIENT OVER MOST OF THE MAINLAND WILL
STRENGTHEN. THE BUILDING RIDGES WILL ALSO ENHANCE THE WINDS OVER
THE NORTHEAST ARCTIC COAST TONIGHT AS A SECOND FRONT SWEEPS DOWN
FROM THE HIGH ARCTIC.

ARCTIC COAST AND BROOKS RANGE...COLD FRONT MOVING INTO CANADA THIS
AFTERNOON...WITH ANOTHER COLD FRONT MOVING SOUTH TO THE COAST LATE
TONIGHT. GRADIENT WILL TIGHTEN UP A BIT AS THE NEXT FRONT MOVES
INTO THE AREA SO EAST OF NUIQSUT WILL CONTINUE THE WINTER WEATHER
ADVISORIES THROUGH SATURDAY AFTERNOON FOR ZONE 203 AND 206. WINDS
KICKED UP A LITTLE STRONGER THAN EXPECTED AND VISIBILITY IS DOWN
NEAR ZERO SO WILL UPGRADE TO A BLIZZARD FOR ZONE 204 THIS
EVENING. COLD AIR ADVECTION WILL CONTINUE ACROSS THE AREA. WITH
STRENGTHENING WINDS OVER THE NORTHWEST COAST...WILL NEED TO ISSUE
SOME WIND CHILL ADVISORIES FOR ZONES 201...202...AND 205.
CONDITIONS IMPROVING BY LATE SATURDAY WITH THE WINDS COMING
DOWN...BUT TEMPERATURES WILL BE TRENDING DOWN.

WEST COAST AND WESTERN INTERIOR...WINDS INCREASING IN GENERAL AS
THE RIDGE BUILDS SOUTH AND THE LOW MOVES NORTH AND WEST IN THE
GULF OF ALASKA. WITH TEMPERATURES TRENDING DOWN WIND CHILL VALUES
ARE FALLING. WILL CONTINUE THE ADVISORIES FOR ZONES
207...209...AND 213.

CENTRAL AND EASTERN INTERIOR...MOSTLY CLEAR AND COLD THROUGH THE
WEEKEND. SOME WINDS OVER THE HILLS TO 25 MPH DEVELOPING AND
PERSISTING THROUGH THE WEEKEND. LOCALLY SOME BLOWING SNOW WILL
OCCUR ON SUMMITS. COLDEST AREAS WILL CONTINUE BE THE FORTYMILE
COUNTRY WITH TEMPERATURES FALLING INTO THE 50S BELOW.

4 TO 7 DAY EXTENDED...STILL LOOKING LIKE RIDGING WEAKENS TUESDAY
AND BROAD AREA OF LOW PRESSURE PUSHES NORTH TO THE BROOKS RANGE.
THIS WILL PUSH WARM AIR NORTH AND TEMPERATURES WILL RISE BACK UP
TO SEASONAL NORMALS OR SLIGHTLY WARMER.

SATELLITE...SPORT MODIS 24 HOUR MICROPHYSICS AT 06/1535Z AND NPP
VIIRS AT 06/1511Z CLEARLY SHOW THE STRATUS OVER THE EASTERN ARCTIC
ASSOCIATED WITH THE COLD FRONT MOVING ACROSS THE AREA. SOME PATCHY
STRATUS IS ALSO SHOWING UP IN THE UPPER YUKON FLATS WEST OF FORT
YUKON AND AROUND INDIAN MOUNTAIN. OUT WEST THE STRATUS CONTINUES
OVER THE WESTERN BERING STRAIT AND WESTERN ST LAWRENCE ISLAND. A
QUICK LOOK AT THE GOES MVFR PROBABILITY PRODUCT AT 06/1845Z NOT
SHOWING INDICATING MUCH AS FAR AS POOR CONDITIONS.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...

WIND CHILL ADVISORY FOR AKZ207-AKZ209-AKZ213.

BLIZZARD WARNING FOR AKZ204.

WINTER WEATHER ADVISORY FOR AKZ203-AKZ206-AKZ218-AKZ220.

BRISK WIND ADVISORY FOR PKZ200-PKZ210-PKZ215-PKZ220-PKZ230-
PKZ245.

&&

SDB FEB 15