Alert archive / Alaska / Winter Storm Warnings in 2017

Winter Storm Warning 4, NWS Anchorage, AK

December 4, 2017

NWS Anchorage, AK issued this winter storm warning at Dec 4, 2017, 7:13 PM AKST. It took effect at Dec 5, 2017, 9:00 PM AKST. It was in force for 20 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 4, 2017, 7:13 PM AKST (04:13 UTC)
In effect from
Dec 5, 2017, 9:00 PM AKST
Expired
Dec 6, 2017, 4:59 PM AKST
In force
20 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

101 
WWAK41 PAFC 050413
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
713 PM AKST Mon Dec 4 2017

AKZ131-051715-
/O.NEW.PAFC.WS.W.0004.171206T0900Z-171207T0300Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
713 PM AKST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TUESDAY NIGHT TO
6 PM AKST WEDNESDAY THROUGH THOMPSON PASS...

* WHAT...Heavy snow and blowing snow expected. Plan on very
  difficult travel conditions. Total snow accumulations of 28 to
  36 inches, with localized amounts up to 44 inches, are expected.
  Highest amounts are expected near the top of the pass with snow
  levels rising to around 2000 feet or higher during the event.

* WHERE...Thompson Pass.

* WHEN...Midnight to 6 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow on Wednesday. Lighter snow is
  expected before and after the timing of this warning. Valdez and
  lower elevation can expect mostly rain, with perhaps some minor
  wet snow accumulation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

http://www.weather.gov/afc
5 follow-up statements
632 
WWAK41 PAFC 051504
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
604 AM AKST Tue Dec 5 2017

AKZ131-060415-
/O.CON.PAFC.WS.W.0004.171206T0900Z-171207T0300Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
604 AM AKST Tue Dec 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM AKST WEDNESDAY THROUGH THOMPSON PASS...

* WHAT...Heavy snow and blowing snow expected. Plan on very
  difficult travel conditions. Total snow accumulations of 28 to
  36 inches, with localized amounts up to 44 inches, are expected.
  Highest amounts are expected near the top of the pass with snow
  levels rising to around 2000 feet or higher during the event.

* WHERE...Thompson Pass.

* WHEN...Midnight to 6 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow on Wednesday. Lighter snow is
  expected before and after the timing of this warning. Valdez and
  lower elevation can expect mostly rain, with perhaps some minor
  wet snow accumulation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ141-060415-
/O.NEW.PAFC.WW.Y.0036.171206T0900Z-171207T0900Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
604 AM AKST Tue Dec 5 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT AKST WEDNESDAY NIGHT...

* WHAT...Snow and blowing snow expected. Plan on difficult travel
  conditions, including during the morning commute on Wednesday.
  Total snow accumulations of 10 to 16 inches, with localized 
  amounts up to 24 inches, are expected.

* WHERE...Heaviest snowfall will be from Glennallen to the south
  and west. 

* WHEN...Midnight to midnight Wednesday night.

* ADDITIONAL DETAILS...Winds gusting as high as 25 mph will cause
  areas of blowing and drifting snow. There is a chance of snow
  turning to freezing rain at the lower levels of the Copper 
  River Basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. For the latest road
conditions call 5 1 1 or visit 511.alaska.gov.

$$

http://www.weather.gov/afc
297 
WWAK41 PAFC 051853
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
953 AM AKST Tue Dec 5 2017

AKZ141-061500-
/O.UPG.PAFC.WW.Y.0036.171206T0900Z-171207T0900Z/
/O.EXB.PAFC.WS.W.0004.171206T0600Z-171207T0600Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
953 AM AKST Tue Dec 5 2017

...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 PM
AKST WEDNESDAY ALONG AND WEST OF THE RICHARDSON HIGHWAY...

* WHAT...Heavy snow expected. Localized areas of blowing snow are
  possible around and south of Glennallen. Plan on difficult
  travel conditions on the Glenn and Richardson highways, 
  including during the morning commute on Wednesday. Total snow 
  accumulations of 8 to 16 inches, with localized amounts up to 24
  inches, are expected.

* WHERE...Heaviest snowfall will be from Glennallen to the south
  and west...including Eureka.

* WHEN...9 PM this evening to 9 PM Wednesday.

* ADDITIONAL DETAILS...Accumulating snow will fall east of the
  Richardson Highway as well, but may mix with or change to rain
  during the day Wednesday. Localized areas of freezing rain are
  briefly possible at the lower elevations of the Copper River 
  Basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ131-061500-
/O.EXT.PAFC.WS.W.0004.171206T0600Z-171207T0300Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
953 AM AKST Tue Dec 5 2017

...WINTER STORM WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO
6 PM AKST WEDNESDAY THROUGH THOMPSON PASS...

* WHAT...Heavy snow and blowing snow expected. Plan on very 
  difficult travel conditions. Total snow accumulations of 28 to 
  36 inches, with localized amounts up to 44 inches, are 
  expected. Highest amounts are expected near the top of the 
  pass with snow levels rising to around 2000 feet or higher 
  during the event.

* WHERE...Thompson Pass.

* WHEN...9 PM this evening to 6 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow on Wednesday. Lighter 
  snow is expected before and after the timing of this warning. 
  Valdez and lower elevation can expect mostly rain, with 
  perhaps some minor wet snow accumulation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

http://www.weather.gov/afc
525 
WWAK41 PAFC 060049
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
349 PM AKST Tue Dec 5 2017

AKZ131-061500-
/O.EXT.PAFC.WS.W.0004.171206T0600Z-171207T0600Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
349 PM AKST Tue Dec 5 2017

...WINTER STORM WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO
9 PM AKST WEDNESDAY THROUGH THOMPSON PASS...

* WHAT...Heavy snow and blowing snow expected. Plan on very
  difficult travel conditions. Total snow accumulations of 28 to
  36 inches, with localized amounts up to 45 inches, are expected.
  Highest amounts are expected near the top of the pass.

* WHERE...Thompson Pass.

* WHEN...9 PM today to 9 PM Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow on Wednesday morning. Lighter
  snow is expected before and after the timing of this warning.
  Valdez and lower elevation can expect a mix of rain and snow,
  with some minor wet snow accumulation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ141-061500-
/O.CON.PAFC.WS.W.0004.171206T0600Z-171207T0600Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
349 PM AKST Tue Dec 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 9 PM AKST WEDNESDAY ALONG AND WEST OF THE RICHARDSON HIGHWAY...

* WHAT...Heavy snow expected. Localized areas of blowing snow are
  possible around and south of Glennallen. Plan on difficult
  travel conditions on the Glenn and Richardson highways. Total
  snow accumulations of 8 to 16 inches, with localized amounts up
  to 24 inches, are expected. 

* WHERE...Heaviest snowfall will be from Glennallen to the south
  and west...including Eureka. The highest snow totals will be
  along the Richardson Highway south of Chitina down to Thompson
  Pass.

* WHEN...9 PM this evening to 9 PM Wednesday.

* ADDITIONAL DETAILS...Accumulating snow will fall east of the 
  Richardson Highway as well, but may mix with or change to rain 
  during the day Wednesday. Localized areas of freezing rain are 
  briefly possible at the lower elevations of the Copper River 
  Basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

http://www.weather.gov/afc
911 
WWAK41 PAFC 061230
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
330 AM AKST Wed Dec 6 2017

AKZ131-070130-
/O.CON.PAFC.WS.W.0004.000000T0000Z-171207T0600Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
330 AM AKST Wed Dec 6 2017

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

* WHAT...Heavy snow and blowing snow are occurring. Plan on very 
  difficult travel conditions. Total snow accumulations of 28 to 
  36 inches, with localized amounts up to 45 inches are expected. 
  Highest amounts are expected near the top of the pass.

* WHERE...Thompson Pass.

* WHEN...Until 9 PM this evening.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow this morning. Lighter snow is
  expected after the timing of this warning. Valdez and lower
  elevationd can expect a mix of rain and snow, with some minor 
  wet snow accumulation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ141-070130-
/O.CON.PAFC.WS.W.0004.000000T0000Z-171207T0600Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
330 AM AKST Wed Dec 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING ALONG AND WEST OF THE RICHARDSON HIGHWAY...

* WHAT...Heavy snow is occurring. Localized areas of blowing snow
  are possible around and south of Glennallen. Plan on difficult
  travel conditions on the Glenn and Richardson Highways. Total
  snow accumulations of 8 to 16 inches, with localized amounts up
  to 24 inches are expected.

* WHERE...The heaviest snowfall will be from Glennallen to the 
  south and west...including Eureka. The highest snow totals will 
  be along the Richardson Highway south of Chitina down to 
  Thompson Pass.

* WHEN...Until 9pm this evening.

* ADDITIONAL DETAILS...Accumulating snow will fall east of the
  Richardson Highway as well, but may mix with or change to rain
  during today. Localized areas of freezing rain are briefly 
  possible at the lower elevations of the Copper River Basin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

http://www.weather.gov/afc
929 
WWAK41 PAFC 070159
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
459 PM AKST Wed Dec 6 2017

AKZ131-071500-
/O.CAN.PAFC.WS.W.0004.000000T0000Z-171207T0600Z/
/O.NEW.PAFC.WW.Y.0037.171207T1900Z-171209T0100Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 4 PM
AKST FRIDAY THROUGH THOMPSON PASS...

* WHAT...Heavy snow is expected. Plan on difficult driving
  conditions. Total snow accumulations of 20 to 30 inches are
  expected through Friday afternoon. Highest amounts are expected
  near the top of the pass. As snow levels rise, snow will
  transition to rain in the lower parts of Thompson Pass.

* WHERE...Thompson Pass for heavy snow. Snow changing to rain for
  Valdez up through Keystone Canyon.

* WHEN...10 AM Thursday to 4 PM Friday.

* ADDITIONAL DETAILS...Snow levels will rise throughout the day
  Thursday reaching near the pass level by the afternoon. Valdez
  and lower elevations can expect mostly rain, perhaps mixed with
  snow in the morning. The rain will be heavy at times, with 2 to
  3 inches of rainfall expected near sea level.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ141-071500-
/O.CAN.PAFC.WS.W.0004.000000T0000Z-171207T0600Z/
/O.NEW.PAFC.WW.Y.0037.171207T1900Z-171208T1500Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 6 AM
AKST FRIDAY... 

* WHAT...Snow and freezing rain expected. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches, with
  localized amounts up to 12 inches, are expected. The heaviest
  snow will occur along the Richardson Highway south of the
  Edgerton Highway. It may also warm up enough to produce areas of
  freezing rain or plain rain through this same area by late
  Thursday. The Eureka and Paxson areas can also expect
  accumulating snow while mainly rain will fall from Glennallen
  southeast to McCarthy.

* WHERE...Copper River Basin.

* WHEN...10 AM Thursday to 6 AM Friday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ101-071500-
/O.NEW.PAFC.WW.Y.0037.171207T1800Z-171208T0700Z/
Anchorage-
Including the cities of Anchorage, Eagle River, Indian, 
and Eklutna
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 10 PM AKST
THURSDAY...

* WHAT...Freezing rain expected. The ice will result in 
  difficult travel conditions, including during the evening 
  commute on Thursday. Total ice accumulations of one tenth to 
  two tenths of an inch are expected.

* WHERE...Anchorage.

* WHEN...9 AM to 10 PM Thursday.

* ADDITIONAL DETAILS...Freezing rain will be intermittent during
  the day Thursday. Some areas may warm above freezing, though
  side roads will likely remain hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of freezing rain
will cause travel difficulties. Be prepared for slippery roads.
Slow down and use caution while driving. For the latest road
conditions call 5 1 1 or visit 511.alaska.gov.

$$

AKZ111-071500-
/O.NEW.PAFC.WW.Y.0037.171207T1800Z-171208T0700Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 10 PM AKST
THURSDAY...

* WHAT...Freezing rain expected. The ice will result in difficult
  travel conditions, including during the evening commute on 
  Thursday. Total ice accumulations of one tenth to two tenths of 
  an inch are expected.

* WHERE...Matanuska Valley.

* WHEN...9 AM to 10 PM Thursday.

* ADDITIONAL DETAILS...Freezing rain will be intermittent during
  the day Thursday. Some areas may warm above freezing, though
  side roads will likely remain hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ121-071500-
/O.NEW.PAFC.WW.Y.0037.171207T1800Z-171208T0700Z/
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer, 
and Cooper Landing
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 10 PM AKST
THURSDAY...

* WHAT...Mixed precipitation expected. The ice will result in
  difficult travel conditions, including during the evening
  commute on Thursday. Total snow accumulations of up to 2 inches,
  with localized amounts up to 4 inches, and ice accumulations of
  one tenth to two tenths of an inch are expected.

* WHERE...Western Kenai Peninsula.

* WHEN...9 AM to 10 PM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. The coolest temperatures will be along the Inlet in kenai
  and Soldotna where a mix of snow and freezing rain are expected.
  Warmer temperatures inland and to the south may result in plain
  rain as temperatures rise above freezing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

AKZ145-071500-
/O.NEW.PAFC.WW.Y.0037.171207T1800Z-171208T0700Z/
Susitna Valley-
Including the cities of Talkeetna, Willow, and Cantwell
459 PM AKST Wed Dec 6 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 AM TO 10 PM AKST
THURSDAY...

* WHAT...Mixed precipitation expected. Travel will be hazardous,
  including during the evening commute on Thursday. Total snow
  accumulations of 2 to 5 inches, with localized amounts up to 10
  inches, and ice accumulations of one tenth to two tenths of an
  inch are expected. 

* WHERE...Susitna Valley.

* WHEN...9 AM to 10 PM Thursday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. The heaviest snow will occur west of the Parks Highway.
  The most likely area for freezing rain will be along the Parks
  Highway south of Talkeetna.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

$$

http://www.weather.gov/afc

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 4, 3:01 PM AKSTSmall Craft AdvisoryAFC9 days
Dec 4, 3:21 PM AKSTGale WarningAFC48 hr
Dec 4, 3:33 PM AKSTSmall Craft AdvisoryAFC5 days
Dec 5, 3:51 AM AKSTGale WarningAFC12 hr
Dec 5, 6:04 AM AKSTWinter Weather AdvisoryAFC4 hr

Nearby

Winter Storm Warnings in Alaska, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.