Winter Storm Warning 10, NWS Juneau, AK

700 
WWAK47 PAJK 181521
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
621 AM AKST SUN DEC 18 2016

AKZ029-190000-
/O.CON.PAJK.WS.W.0009.000000T0000Z-161219T0900Z/
MISTY FJORDS-
INCLUDING THE CITY OF...HYDER
621 AM AKST SUN DEC 18 2016

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

* LOCATION...NEAR HYDER.

* SNOW...STORM TOTAL OF 1 TO 2 FEET.

* TIMING...SNOWFALL RATES WILL INCREASE THROUGH SUNDAY AFTERNOON 
  AND DIMINISH LATE SUNDAY NIGHT. 

* IMPACTS...SNOW REMOVAL WILL BE DIFFICULT DUE TO LARGE 
  ACCUMULATIONS. TRAVEL WILL BE HAMPERED. 

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.

THIS STATEMENT WILL BE UPDATED BY 4 PM AKST SUNDAY AFTERNOON OR
SOONER IF CONDITIONS WARRANT.

&&

$$

AKZ019-190000-
/O.CON.PAJK.WS.W.0010.161218T1800Z-161219T0600Z/
HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITY OF...HAINES
621 AM AKST SUN DEC 18 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

* LOCATION...HAINES AND THE HAINES HIGHWAY INCLUDING MUD BAY.

* SNOW...4 TO 8 INCHES OF NEW SNOW.

* TIMING...SNOWFALL RATES WILL BEGIN INCREASING MID-DAY AND BEGIN
  TO DIMINISH THIS EVENING. THIS EVENING SNOW WILL CHANGE TO RAIN
  IN HAINES.

* IMPACTS...SNOW REMOVAL WILL BE DIFFICULT DUE TO LARGE 
  ACCUMULATIONS. TRAVEL WILL BE HAMPERED. 

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.

THIS STATEMENT WILL BE UPDATED BY 4 PM AKST SUNDAY AFTERNOON OR
SOONER IF CONDITIONS WARRANT.

&&

$$

AKZ018-190000-
/O.CON.PAJK.WS.W.0009.161218T2100Z-161219T1500Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
621 AM AKST SUN DEC 18 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 AM
AKST MONDAY...

* LOCATION...KLONDIKE HIGHWAY NEAR WHITE PASS.

* SNOW...UP TO 1 FOOT OF NEW SNOW.

* TIMING...SNOWFALL RATES WILL BECOME HEAVY THIS AFTERNOON WILL 
  BEGIN TO DIMINISH LATE SUNDAY NIGHT. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO ACCUMULATING AND 
  BLOWING SNOW. 

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

THIS STATEMENT WILL BE UPDATED BY 4 PM AKST SUNDAY AFTERNOON OR
SOONER IF CONDITIONS WARRANT.

&&

$$

573 
WWAK47 PAJK 182359
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
259 PM AKST SUN DEC 18 2016


AKZ018-190800-
/O.EXT.PAJK.WS.W.0009.000000T0000Z-161219T2100Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
259 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON AKST MONDAY...

* LOCATION...KLONDIKE HIGHWAY NEAR WHITE PASS.

* SNOW...NEW SNOW ACCUMULATION TO 10 INCHES THROUGH TONIGHT AND
  ANOTHER 4 TO 8 INCHES MONDAY.

* TIMING...SNOWFALL RATES BE HEAVY THROUGH TONIGHT THEN BECOME
  SHOWERY ON MONDAY.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO ACCUMULATING AND 
  BLOWING SNOW. 

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

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

&&

$$

AKZ029-190800-
/O.EXT.PAJK.WS.W.0009.000000T0000Z-161219T1800Z/
MISTY FJORDS-
INCLUDING THE CITY OF...HYDER
259 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 AM AKST MONDAY...

* LOCATION...NEAR HYDER.

* SNOW...NEW SNOW ACCUMULATION OF AROUND 12 INCHES TONIGHT. STORM
  TOTAL OF AROUND 2 FEET.

* TIMING...SNOWFALL RATES BE HEAVY THROUGH TONIGHT THEN BECOME
  SHOWERY ON MONDAY.

* IMPACTS...SNOW REMOVAL WILL BE DIFFICULT DUE TO LARGE 
  ACCUMULATIONS. TRAVEL WILL BE HAMPERED. 

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.

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

&&

$$

AKZ019-190600-
/O.CON.PAJK.WS.W.0010.000000T0000Z-161219T0600Z/
HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITY OF...HAINES
259 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

* LOCATION...ALONG THE HAINES HIGHWAY.

* SNOW...4 TO 6 INCHES OF NEW SNOW TONIGHT...GREATEST AMOUNTS
  WEST OF THE AIRPORT.

* TIMING...SNOWFALL RATES WILL BEGIN TO DIMINISH THIS EVENING. A
  MIX OF RAIN AND SNOW NEAR SEA LEVEL.

* IMPACTS...SNOW REMOVAL WILL BE DIFFICULT DUE TO LARGE 
  ACCUMULATIONS. TRAVEL WILL BE HAMPERED. 

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.

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

&&

$$

740 
WWAK47 PAJK 190559
WSWAJK

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
859 PM AKST SUN DEC 18 2016

AKZ019-190700-
/O.EXP.PAJK.WS.W.0010.000000T0000Z-161219T0600Z/
HAINES BOROUGH AND LYNN CANAL-
INCLUDING THE CITY OF...HAINES
859 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING WILL EXPIRE AT 9 PM AKST THIS EVENING...

SNOW HAS DIMINISHED AND EVEN CHANGED OVER TO RAIN NEAR HAINES. WE
HAVE RECEIVED REPORTS OF AROUND 3 TO 8 INCHES OF SNOW OVER THE
LAST 12 HOURS. LIGHT SNOW AND RAIN SHOWERS WILL CONTINUE THROUGH
THE NIGHT. ADDITIONAL SNOW ACCUMULATION UP TO 2 INCHES WITH
HIGHEST AMOUNTS NEAR PLEASANT CAMP.

$$

AKZ018-191500-
/O.CON.PAJK.WS.W.0009.000000T0000Z-161219T2100Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
859 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON AKST
MONDAY...

* LOCATION...KLONDIKE HIGHWAY NEAR WHITE PASS.

* SNOW...AMOUNTS OF AROUND 12 INCHES HAS BEEN REPORTED ON THE
  KLONDIKE HIGHWAY SINCE SUNDAY MORNING. NEW SNOW ACCUMULATION TO
  6 INCHES THROUGH THE REST OF TONIGHT AND ANOTHER 4 TO 8 INCHES
  MONDAY.

* TIMING...SNOWFALL RATES MAY BE HEAVY THROUGH TONIGHT.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO ACCUMULATING AND 
  BLOWING SNOW. 

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

THIS STATEMENT WILL BE UPDATED BY 6 AM AKST MONDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ029-191500-
/O.CON.PAJK.WS.W.0009.000000T0000Z-161219T1800Z/
MISTY FJORDS-
INCLUDING THE CITY OF...HYDER
859 PM AKST SUN DEC 18 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM AKST
MONDAY...

* LOCATION...NEAR HYDER.

* SNOW...HYDER HAS REPORTED AROUND 21 INCHES OF NEW SNOW SINCE
  SATURDAY MORNING. NEW SNOW ACCUMULATION OF AROUND 8 INCHES
  THROUGH THE REST OF TONIGHT WITH A STORM TOTAL OF AROUND 2
  FEET.

* TIMING...SNOWFALL RATES WILL BE HEAVY THROUGH TONIGHT.

* IMPACTS...SNOW REMOVAL WILL BE DIFFICULT DUE TO LARGE 
  ACCUMULATIONS. TRAVEL WILL BE HAMPERED. 

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.

THIS STATEMENT WILL BE UPDATED BY 6 AM AKST MONDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
351 PM AKST Sat Dec 17 2016

.SHORT TERM...An occluded front will move across most of SE AK
tonight but get hung up over the S area. A stronger occluded
front will move NE into the E gulf Sun morning, then move onshore
SE AK Sun afternoon. Used a 12z NAM/GFS blend to handle tonight,
then pretty much kept pressures as is for Sun.

Main forecast concerns will timing ptype transition to rain,
snowfall, and winds. At this point the rain/snow line is near a
PAOH-PAFE-PAKT line. Think much of the area currently getting snow
near sea level will change to rain this evening as warmer air
moves in along and behind the first occluded front. The main
exception to this will be near Hyder where a deeper cold airmass
will hang on into Sun. Precip should be mainly rain near sea level
with Sun system except near Hyder where it should continue to be
snow.

Looks like another 1 to 3 inches of snow near sea level over the
NE part of the area tonight. Hyder looks like they will get fairly
heavy snow tonight and Sun with up to 18 inches likely by late
Sun afternoon. Keeping winter storm warning going as is for Hyder.
Higher elevations over the N will probably see several inches of
snow Sun with next front. They currently have a winter weather
advy for first front, and may need another advy with the second
front at higher elevations of zones 18 and 19 Sun. However, did
not want to have 2 advys going on at the same time to avoid
confusion.

Winds will pick up to SCA over the N this evening as occluded
front passes through and increasing S pressure gradient develops.
Central and S inner channels will generally remain around SCA
levels tonight, although wind could drop below that level during
the overnight hours across the central area. Then with stronger
front moving in Sun, am expecting much of the inner channels to
see SCA to gale force winds by the afternoon. The far N will
probably drop below SCA levels Sun as pressure gradient becomes
more parallel to them. Have added in a couple of strong wind
headlines for land, with zones 25 through 28 seeing strong wind
especially Sun afternoon. Over the gulf, winds ahead of the first
front will remain SCA to min gale for the SE half of the gulf
tonight. Then winds over entire gulf should get to at least gale
force Sun as stronger occluded front moves in. The far N gulf will
likely reach storm force by early Sun afternoon.

.LONG TERM...Active weather pattern continues through mid week
with onshore flow and southerly winds through the inside waters.
Sunday's front discussed above will move through in the evening
with a transition to showers and winds shifting to the SW. Showers
will continue through Monday and some places will get cold enough
for snow to mix back in Sunday night. Will need to watch for
thunderstorm potential over the gulf, but that has been left out
for now.

Another front moves across the area Monday evening with another
round of gusty winds. This is followed by another system for
Tuesday afternoon/evening with little break in between. There are
hints of longer breaks between systems for the 2nd half of the
week and cooler temperatures for some snow. But forecast
confidence is lower as the week goes on.

Left much of the short/mid range forecast in place then used
mainly the 12z ECMWF/GFS followed by WPC guidance. Nudged
temperatures down slightly through the end of the week.

&&

.AJK Watches/Warnings/Advisories...
PUBLIC...Strong Wind Sunday afternoon for AKZ026-028.
     Strong Wind from Sunday morning through Sunday afternoon for
     AKZ025-027.
     Winter Weather Advisory until 6 PM AKST this evening for AKZ025.
     Winter Storm Warning from 6 PM this evening to midnight AKST
     Sunday night for AKZ029.
     Winter Weather Advisory until 9 PM AKST this evening for AKZ018.
MARINE...Storm Warning for PKZ052.
     Gale Warning for PKZ022-031-033>036-041>043-051.
     Small Craft Advisory for PKZ011>013-021-032-053.
&&

RWT/Ferrin

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