Winter Storm Warning 9, NWS Juneau, AK

000 
WWAK47 PAJK 132058
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
1158 AM AKST FRI DEC 13 2013

AKZ018-019-140500-
/X.CON.PAJK.WS.W.0009.000000T0000Z-131214T0900Z/
TAIYA INLET AND KLONDIKE HIGHWAY-HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITIES OF...SKAGWAY...HAINES
1158 AM AKST FRI DEC 13 2013

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

A WINTER STORM WARNING FOR HEAVY SNOW AND/OR BLOWING SNOW REMAINS
IN EFFECT UNTIL MIDNIGHT AKST TONIGHT.

* TIMING...HEAVY SNOW THIS MORNING WILL PERSIST INTO LATE FRIDAY
  EVENING. SNOW WILL BEGIN TO CHANGE OVER TO RAIN TOWARDS SUNRISE
  AS STRONG WINDS MOVE UP FROM THE SOUTH.

* SNOW...SNOWFALL AS OF 11 AM RANGED BETWEEN 3 AND 5 INCHES IN
  HAINES. SNOWFALL REPORTS IN SKAGWAY WERE 1 TO 2 INCHES HOWEVER
  IT WAS DRIFTING AND BLOWING AROUND IN SKAGWAY. SNOW TOTALS 4 TO 7
  INCHES ARE EXPECTED BY FRIDAY AFTERNOON FOR HAINES AND SKAGWAY
  WITH AN ADDITIONAL 4 TO 6 INCHES THROUGH LATE FRIDAY NIGHT.
  STORM TOTAL SNOW ACCUMULATION OF 6 TO 13 INCHES THROUGH FRIDAY
  NIGHT. HIGHEST SNOW TOTALS WILL BE NEAR THE BORDER ON THE HAINES
  HIGHWAY AND ALONG THE KLONDIKE HIGHWAY. WARMING TEMPERATURES
  WILL SPREAD IN EARLY SATURDAY MORNING PROMPTING A CHANGE FROM
  SNOW OVER TO RAIN NEAR LYNN CANAL.

* MAIN IMPACT...MOTOR VEHICLE TRAVEL WILL BE HAZARDOUS. SNOW
  REMOVAL OPERATIONS MAY CAUSE DELAYS ON HIGHWAYS. BLOWING SNOW
  NEAR WHITE PASS WITH LOW VISIBILITIES EXPECT POOR TIRE TRACTION
  AND POOR VISIBILITY AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WARNING MEANS THAT A WINTER STORM IS ALREADY OCCURRING OR
IMMINENT. THIS STORM COULD POSE A THREAT TO LIFE AND PROPERTY.

SNOW LOADING MAY JEOPARDIZE THE ROOFS OF WEAKER STRUCTURES.

THIS STATEMENT WILL BE UPDATED BY 8 PM AKST FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ025-140300-
/X.CON.PAJK.WW.Y.0025.000000T0000Z-131214T0300Z/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND-
INCLUDING THE CITY OF...JUNEAU
1158 AM AKST FRI DEC 13 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

A WINTER WEATHER ADVISORY FOR SNOW AND RAIN REMAINS IN EFFECT
UNTIL 6 PM AKST THIS EVENING.

* TIMING...RAIN AND SNOW THROUGH THE EARLY AFTERNOON THEN ALL RAIN
  THROUGH THE AFTERNOON AS STRONG WINDS MOVE UP FROM THE SOUTH.

* SNOW...SNOW ACCUMULATION THROUGH 11 AM RANGED BETWEEN 2 TO 4
  INCHES WITH HIGHER AMOUNT NORTH OF AUKE BAY. SNOW IS CONTINUING
  TO FALL NORTH OF AUKE BAY WITH EXPECTED TOTALS 4 TO 6 INCHES
  THROUGH FRIDAY EVENING. HIGHEST AMOUNTS MENDENHALL VALLEY NORTH.

* MAIN IMPACT...MOTOR VEHICLE TRAVEL IS LIKELY TO BECOME
  HAZARDOUS. WHILE SNOW FALL AMOUNTS FOR AREAS SOUTH OF MENDENHALL
  VALLEY WILL BE LOWER AS SNOW CHANGES TO RAIN IN THE AFTERNOON
  ROADS ALREADY COVER IN SNOW AND ICE WILL BECOME SLICK. SNOW
  REMOVAL MAY BE DIFFICULT AS SNOW BECOMES HEAVY AND WET. AREAS
  NORTH OF MENDENHALL VALLEY WILL CHANGE OVER TO RAIN IN THE LATE
  AFTERNOON.

* OTHER IMPACTS...HEAVY WET SNOW WILL BE DIFFICULT TO MANAGE DUE 
  TO HIGH WATER CONTENT. BOAT AND AIRCRAFT OWNERS AREA ADVISED 
  TO REMOVE HEAVY WET SNOW. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN ADVISORY MEANS THAT A POTENTIALLY HAZARDOUS EVENT IS ALREADY
OCCURRING OR IMMINENT.

THIS STATEMENT WILL BE UPDATED BY 6 PM AKST FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

BEZENEK

000 
WWAK47 PAJK 140047
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
347 PM AKST FRI DEC 13 2013

AKZ025-140200-
/X.CAN.PAJK.WW.Y.0025.000000T0000Z-131214T0300Z/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND-
INCLUDING THE CITY OF...JUNEAU
347 PM AKST FRI DEC 13 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

SNOW HAS BECOME EITHER RAIN OR RAIN MIXED WITH SNOW FOR JUNEAU
EXCPET FOR ANOTHER 3 INCHES OF WET SNOW FOR OUT THE ROAD. DRIVING
IS HAZARDOUS DUE TO THE WATER ON TOP OF PACKED SNOW OR ICE AND
SOME AREAS HAVE STANDING WATER ON ROADS. 

THIS IS THE LAST STATMENT FOR THIS EVENT. 


$$

AKZ018-019-140900-
/X.CON.PAJK.WS.W.0009.000000T0000Z-131214T0900Z/
TAIYA INLET AND KLONDIKE HIGHWAY-HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITIES OF...SKAGWAY...HAINES
347 PM AKST FRI DEC 13 2013

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

A WINTER STORM WARNING FOR HEAVY SNOW...AND/OR BLOWING SNOW
REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT.

* TIMING...HEAVY SNOW CONTINUES AND WILL PERSIST INTO TONIGHT.
  SNOW WILL BEGIN TO CHANGE OVER TO RAIN TOWARDS SUNRISE AS STRONG
  WINDS MOVE UP FROM THE SOUTH.

* SNOW...STORM TOTAL SNOW ACCUMULATION 6 TO 13 INCHES THROUGH TONIGHT.
  HIGHEST SNOW TOTALS WILL BE NEAR THE BORDER ON THE HAINES
  HIGHWAY AND ALONG THE KLONDIKE HIGHWAY. WARMING TEMPERATURES
  WILL SPREAD IN EARLY SATURDAY MORNING PROMPTING A CHANGE FROM
  SNOW OVER TO RAIN NEAR LYNN CANAL.

* MAIN IMPACT...MOTOR VEHICLE TRAVEL IS HAZARDOUS. SNOW REMOVAL
  OPERATIONS MAY CAUSE DELAYS ON HIGHWAYS. BLOWING SNOW NEAR WHITE
  PASS WITH LOW VISIBILITY. EXPECT POOR TIRE TRACTION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WARNING MEANS THAT A WINTER STORM IS ALREADY OCCURRING OR
IMMINENT. THIS STORM COULD POSE A THREAT TO LIFE AND PROPERTY.

SNOW LOADING MAY JEOPARDIZE THE ROOFS OF WEAKER STRUCTURES.
AIRCRAFT OWNERS AND BOATERS SHOULD REMOVE SNOW TO PREVENT DAMAGE
OR SINKING. 

THIS STATEMENT WILL BE UPDATED BY 11 PM AKST FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

000 
WWAK47 PAJK 140739
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
1039 PM AKST FRI DEC 13 2013

AKZ018-019-141400-
/X.EXT.PAJK.WS.W.0009.000000T0000Z-131214T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITIES OF...SKAGWAY...HAINES
1039 PM AKST FRI DEC 13 2013

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 AM AKST SATURDAY...

* TIMING...HEAVY SNOW CONTINUES AND WILL PERSIST INTO TONIGHT. 
  SNOW WILL BEGIN TO CHANGE OVER TO RAIN TOWARDS SUNRISE AS 
  STRONG WINDS MOVE UP FROM THE SOUTH. 

* SNOW...STORM TOTAL SNOW ACCUMULATION 6 TO 13 INCHES THROUGH
  TONIGHT. HIGHEST SNOW TOTALS WILL BE NEAR THE BORDER ON THE
  HAINES HIGHWAY AND ALONG THE KLONDIKE HIGHWAY. WARMING
  TEMPERATURES WILL SPREAD SATURDAY MORNING CAUSING THE SNOW TO
  CHANGE TO RAIN NEAR LYNN CANAL.

* MAIN IMPACT...MOTOR VEHICLE TRAVEL IS HAZARDOUS. SNOW REMOVAL 
  OPERATIONS MAY CAUSE DELAYS ON HIGHWAYS. BLOWING SNOW NEAR 
  WHITE PASS WITH LOW VISIBILITY. EXPECT POOR TIRE TRACTION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WARNING MEANS THAT A WINTER STORM IS ALREADY OCCURRING OR
IMMINENT. THIS STORM COULD POSE A THREAT TO LIFE AND PROPERTY.

SNOW LOADING MAY JEOPARDIZE THE ROOFS OF WEAKER STRUCTURES.
AIRCRAFT OWNERS AND BOATERS SHOULD REMOVE SNOW TO PREVENT DAMAGE
OR SINKING.

THIS STATEMENT WILL BE UPDATED BY 5 AM AKST SATURDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

000 
WWAK47 PAJK 141358
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
458 AM AKST SAT DEC 14 2013

AKZ018-019-142100-
/X.EXT.PAJK.WS.W.0009.000000T0000Z-131215T0100Z/
TAIYA INLET AND KLONDIKE HIGHWAY-HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITIES OF...SKAGWAY...HAINES
458 AM AKST SAT DEC 14 2013

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM AKST THIS
AFTERNOON...

* TIMING...HEAVY WET SNOW WILL CONTINUE TO PERSIST THROUGH THIS
  AFTERNOON...MAINLY ALONG THE HAINES HIGHWAY AND NEAR WHITE PASS.
  AS STRONG WINDS MOVE UP FROM THE SOUTH...SNOW SHOULD CHANGEOVER
  TO RAIN LATE THIS AFTERNOON NEAR WHITE PASS. 

* SNOW...ADDITIONAL SNOW ACCUMULATION 5 TO 7 INCHES THROUGH THIS
  AFTERNOON. HIGHEST SNOW TOTALS WILL BE NEAR THE BORDER ON THE
  HAINES HIGHWAY AND NEAR WHITE PASS. 

* FREEZING RAIN...WEST OF KLUKWAN ALONG THE HAINES
  HIGHWAY...FREEZING RAIN WILL MIX WITH SNOW THROUGH THE
  AFTERNOON. LESS THAN A QUARTER OF AN INCH OF ICE ACCUMULATION
  IS EXPECTED THROUGH THIS AFTERNOON.

* MAIN IMPACT...MOTOR VEHICLE TRAVEL IS HAZARDOUS WITH HEAVY WET
  SNOW AND FREEZING RAIN. SNOW REMOVAL OPERATIONS MAY CAUSE DELAYS
  ON HIGHWAYS. FREEZING RAIN WILL COAT ROADS WITH A SLIPPERY GLAZE.
  EXPECT POOR TIRE TRACTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WARNING MEANS THAT A WINTER STORM IS ALREADY OCCURRING OR
IMMINENT. THIS STORM COULD POSE A THREAT TO LIFE AND PROPERTY.

SNOW LOADING MAY JEOPARDIZE THE ROOFS OF WEAKER STRUCTURES.

THIS STATEMENT WILL BE UPDATED BY NOON AKST SATURDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

000 
WWAK47 PAJK 142037
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
1137 AM AKST SAT DEC 14 2013

AKZ018-019-142145-
/X.CAN.PAJK.WS.W.0009.000000T0000Z-131215T0100Z/
TAIYA INLET AND KLONDIKE HIGHWAY-HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITIES OF...SKAGWAY...HAINES
1137 AM AKST SAT DEC 14 2013

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS CANCELLED THE WINTER
STORM WARNING. 

THE FREEZING RAIN HAS STOPPED AND THE SNOW HAS DIMINISHED IN
INTENSITY. LIGHT SNOW IS EXPECTED TO CONTINUE ALONG THE HIGHWAYS
BUT HIGH ACCUMULATIONS ARE NOT EXPECTED THROUGH THE REST OF THE
DAY.

THIS WILL BE THE FINAL STATEMENT ON THIS EVENT.

$$

SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
401 PM AKST THU DEC 12 2013

.SHORT TERM...SIGNIFICANT WINTER STORM THAT HAS IMPACTED SOUTHEAST
ALASKA OVER THE PAST FEW DAYS HAS EXITED THE AREA THIS AFTERNOON.
PARENT LOW PRESSURE SYSTEM OVER THE NORTHERN GULF CONTINUES TO
DRIFT WEST AND WEAKEN. HIGH PRESSURE OVER THE YUKON WILL GRADUALLY
WEAKEN WITH THE NORTHERLY PRESSURE GRADIENT RELAXING OVER THE
NORTHERN PANHANDLE. NEXT SYSTEM TO AFFECT THE PANHANDLE WILL
RAPIDLY MOVE INTO THE GULF TO AROUND 145W BY FRIDAY AFTERNOON.
THIS WILL SEND A STRONG FRONT INTO THE OUTER COAST FRIDAY
AFTERNOON. THE SYSTEM WILL ONCE AGAIN HAVE A TROPICAL MOISTURE
CONNECTION SO PRECIPITATION RATES BY FRIDAY AFTERNOON WILL BE
HEAVY AT TIMES ALONG THE OUTER COASTAL AREAS.

DEEP LAYER ONSHORE FLOW WILL CONTINUE THROUGH THE PERIOD SO HAVE
CONTINUED PERIODS OF PRECIPITATION THROUGH THE EVENING AND INTO
THE OVERNIGHT HOURS. SNOW WILL BE THE PREDOMINANT PRECIPITATION
TYPE FROM ANGOON NORTHWARD WITH RAIN TO THE SOUTH. EXPECT THAT
ONLY A FEW ADDITIONAL INCHES OF SNOW WILL FALL THROUGH TONIGHT.
MOISTURE RAPIDLY INCREASES AGAIN FRIDAY MORNING IN ADVANCE OF THE
APPROACHING FRONT MENTIONED ABOVE. STEADY PRECIPITATION WILL
OVERSPREAD THE PANHANDLE AND INCREASE IN INTENSITY THROUGH THE
DAY. MUCH WARMER AIR ASSOCIATED WITH THIS SYSTEM WILL ADVECT IN
FROM SOUTH TO NORTH OVER THE PANHANDLE. AS SOUTHEASTERLY WINDS
INCREASE THROUGH THE DAY PRECIPITATION WILL MIX WITH THEN CHANGE
TO RAIN. CURRENT THINKING IS THAT THIS WILL OCCUR IN THE MORNING
OVER THE CENTRAL PANHANDLE...EARLY AFTERNOON IN HOONAH...AND MID
TO LATE AFTERNOON IN GUSTAVUS AND JUNEAU FROM THE AIRPORT
SOUTHWARD. AS USUAL THE MENDENHALL VALLEY AND NORTHWARD WILL HOLD
ONTO THE COLD AIR A BIT LONGER BEFORE CHANGING TO RAIN BY EARLY
EVENING. HELD OFF ON ISSUING AN ADVISORIES WITH THIS PACKAGE BUT
CONCERN THAT THESE AREAS MAY REACH ADVISORY CRITERIA ON SNOWFALL.

50-60 KT LOW LEVEL JET IN ASSOCIATION WITH THE FRONT WILL BRING
GUSTY WINDS TO BOTH LAND AND MARINE AREAS BEGINNING FRIDAY
AFTERNOON. GUSTS TO AT LEAST 40 MPH CAN BE ANTICIPATED ALONG THE
OUTER COAST AND INLAND OVER THE CENTRAL AND SOUTHERN PANHANDLE.
INCLUDED GUSTS TO 35 MPH IN THE YAKUTAT AREA WITH THE FRONTAL
PASSAGE BUT A STRONG WIND HEADLINE MAY BE NEEDED BY LATER SHIFTS.
SOUTHEASTERLY WINDS WILL ALSO BE ON THE INCREASE WITH GALES
DEVELOPING IN THE SOUTHERN INNER CHANNELS AS WELL AS CROSS SOUND
AND ICY STRAIT. SMALL CRAFT SOUTHERLIES WILL SPREAD INTO THE
CENTRAL INNER CHANNELS BY FRIDAY AFTERNOON.

USED MAINLY THE 12Z GFS TO UPDATE THE INHERITED GRIDS THROUGH
SATURDAY AFTERNOON. FORECASTER CONFIDENCE IS AVERAGE ON MOST
ASPECTS OF THE FORECAST BUT DECREASES ON THE SNOW TO RAIN
CHANGEOVER IN THE JUNEAU AND GUSTAVUS AREAS SATURDAY AFTERNOON.

&&

.LONG TERM.../ FRIDAY NIGHT THROUGH THURSDAY / NEXT SYSTEM
CONTINUING TO SPREAD THE RAIN AND SNOW INTO THE PANHANDLE.
MAJORITY OF THE PANHANDLE FRIDAY NIGHT WILL BE RAIN OR
TRANSFERRING OVER TO RAIN...HOWEVER THE FAR NORTHERN REACHES OF
GLACIER BAY WITH THE LYNN CANAL ZONES OF HAINES AND SKAGWAY WILL
BE SNOW...THOUGH STARTING TO CHANGE DURING THE AFTERNOON.

EXPECT THE RAIN TO LINGER FOR A DAY OR TWO... AND RAIN TOTALS IN
SOME REGIONS ARE GOING TO BE IN THE 1 TO 2 INCH RANGE. WILL NEED
TO KEEP AN EYE ON STREAMS WITH HOW MUCH RUN OFF THERE COULD BE.
URBAN AREAS WITH BLOCKED DRAINAGES MAY SEE SOME PONDING OF WATER
ON ROADWAY. ALL THIS WATER ON THE HIGHER SLOPES AS WELL MAY
POTENTIALLY ALSO LEAD TO LAND SLIDES ON SOME SLOPES.

TEMPERATURES COOLING FAIRLY RAPIDLY AGAIN FOR SOUTHEAST ALASKA SO
SHIFTING A LOT OF THE WEATHER TYPE BACK TO SNOW AND AS SHOWERS SO
THE ACCUMULATIONS WILL BE HARDER TO HIT.

NEXT WEEKS WEATHER FROM THE EARLY PART OF NEXT WEEK TO THE END OF
THE WEEK MORE OF GENERAL ZONAL FLOW PATTERN...INTERESTINGLY ENOUGH
IT LOOKS LIKE SOUTHEAST ALASKA MAY BETWEEN THE NORTHERN AND
SOUTHERN JET STREAMS AND OUT OF ANY SIGNIFICANT SYSTEMS A

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...STRONG WIND FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR
     AKZ023-026-027.
         STRONG WIND FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR
     AKZ022.
         STRONG WIND FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING FOR
     AKZ028.
         WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY
     MORNING FOR AKZ018-019.
MARINE...GALE WARNING FOR PKZ012-021-022-033-035-036-041>043-051-052.
         SMALL CRAFT ADVISORY FOR PKZ011-013-031-032-034-053.

&&

TPS/BEZENEK