Alert archive / Alaska / Blizzard Warnings in 2021

Blizzard Warning 18, NWS Anchorage, AK

November 29, 2021

NWS Anchorage, AK issued this blizzard warning at Nov 29, 2021, 3:23 PM AKST. It took effect at Nov 29, 2021, 11:00 PM AKST. It was in force for 17 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
Nov 29, 2021, 3:23 PM AKST (00:23 UTC)
In effect from
Nov 29, 2021, 11:00 PM AKST
Expired
Nov 30, 2021, 4:00 PM AKST
In force
17 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

044 
WWAK41 PAFC 300023
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
323 PM AKST Mon Nov 29 2021

AKZ131-301330-
/O.UPG.PAFC.WS.A.0008.211130T1200Z-211201T0900Z/
/O.NEW.PAFC.BZ.W.0018.211130T0800Z-211201T0600Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
323 PM AKST Mon Nov 29 2021

...BLIZZARD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 9 PM
AKST TUESDAY FOR THOMPSON PASS...

* WHAT...Blizzard conditions expected. Total snow accumulations 
  of 7 to 14 inches. Winds gusting as high as 55 mph.

* WHERE...Thompson Pass.

* WHEN...From 11 PM this evening to 9 PM AKST Tuesday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 30 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Snow is expected begin this evening and
  will increase in intensity during the overnight hours. Heaviest
  snowfall rates are expected early Tuesday morning. Gusty
  northeasterly winds will combine with snow to reduce visibility
  to one quarter mile or less at times. Expect snowfall to become
  lighter during the afternoon hours on Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel very hazardous. If you must travel,
have a winter survival kit with you.If you get stranded, stay
with your vehicle. 

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

AKZ125-301330-
/O.CON.PAFC.WW.Y.0057.000000T0000Z-211130T1800Z/
Western Prince William Sound-
Including the cities of Whittier, Seward, Girdwood, 
and Moose Pass
323 PM AKST Mon Nov 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM AKST
TUESDAY...

* WHAT...Snow and blowing snow expected. East to northeast winds 
  15 to 25 mph with gusts to 35 mph. Visibility of one half mile 
  or less at times. Total snow accumulations of 10 to 15 inches.

* WHERE...Portage Valley and Whittier.

* WHEN...From 9 AM this morning to 9 AM AKST Tuesday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility.

* ADDITIONAL DETAILS...Winds will diminish overnight Monday into 
  Tuesday morning. Snow rates will diminish during the day 
  Tuesday before another round of snow develops late Tuesday 
  into Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

http://www.weather.gov/afc
3 follow-up statements
357 
WWAK41 PAFC 301330
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
430 AM AKST Tue Nov 30 2021

AKZ125-301430-
/O.CAN.PAFC.WW.Y.0057.000000T0000Z-211130T1800Z/
Western Prince William Sound-
Including the cities of Whittier, Seward, Girdwood, 
and Moose Pass
430 AM AKST Tue Nov 30 2021

...WINTER WEATHER ADVISORY IS CANCELLED FOR PORTAGE VALLEY AND
WHITTIER...

Snow will continue today, but winds will generally remain light.
Thus, blowing snow is not expected to be an issue.  

$$

AKZ131-010100-
/O.EXT.PAFC.BZ.W.0018.000000T0000Z-211201T0100Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
430 AM AKST Tue Nov 30 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 4 PM AKST THIS 
AFTERNOON THROUGH THOMPSON PASS...

* WHAT...Blizzard conditions. Additional snow accumulations of 2 
  to 6 inches. Winds gusting as high as 35 mph.

* WHERE...Thompson Pass.

* WHEN...Until 4 PM AKST this afternoon.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 25 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Winds will gradually diminish this
  afternoon, leading to a slight improvement in visibility. 
  However, areas of blowing snow will persist. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel very hazardous. If you must travel,
have a winter survival kit with you.If you get stranded, stay
with your vehicle. 

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

AKZ121-010200-
/O.NEW.PAFC.WW.Y.0059.211130T2200Z-211201T0900Z/
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer, 
and Cooper Landing
430 AM AKST Tue Nov 30 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
MIDNIGHT AKST TONIGHT FROM HOMER TO ANCHOR POINT...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 3 to 7 inches. Southwest winds 10 to 20 mph with gusts to 30
  mph. 

* WHERE...Homer northward to Anchor Point.

* WHEN...From 1 PM this afternoon to midnight AKST tonight.

* IMPACTS...Plan on slippery road conditions. Blowing snow will
  reduce visibilities to one half mile or less at times. 

* ADDITIONAL DETAILS...Gusty southwest winds will develop this
  afternoon and persist through this evening, causing the falling
  snow to blow around. Yet another round of gusty winds and snow
  showers is possible beginning Wednesday afternoon.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

http://www.weather.gov/afc
222 
WWAK41 PAFC 302256
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
156 PM AKST Tue Nov 30 2021

AKZ131-010100-
/O.CON.PAFC.BZ.W.0018.000000T0000Z-211201T0100Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
156 PM AKST Tue Nov 30 2021

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 4 PM AKST THIS
AFTERNOON THROUGH THOMPSON PASS...

* WHAT...Blizzard conditions. Additional snow accumulations of 2 
  to 6 inches. Winds gusting as high as 35 mph.

* WHERE...Thompson Pass.

* WHEN...Until 4 PM AKST this afternoon.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 25 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Winds will gradually diminish this 
  afternoon, leading to a slight improvement in visibility. 
  However, areas of blowing snow will persist.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions, making travel very hazardous. If you must travel,
have a winter survival kit with you.If you get stranded, stay
with your vehicle.

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

AKZ121-010900-
/O.CON.PAFC.WW.Y.0059.000000T0000Z-211201T0900Z/
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer, 
and Cooper Landing
156 PM AKST Tue Nov 30 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AKST
TONIGHT...

* WHAT...Snow and blowing snow expected. Localized areas of
  freezing rain will occur through the evening hours. Total snow
  accumulations of 3 to 7 inches with total ice accumulations of a
  trace to one tenth of an inch. Southwest winds 10 to 20 mph 
  with gusts to 30 mph.

* WHERE...Snow and blowing snow from Homer northward to Anchor
  Point. Freezing rain most likely along the coast from Kenai
  northward.

* WHEN...From 1 PM this afternoon to midnight AKST tonight.

* IMPACTS...Plan on slippery road conditions, especially with any
  light icing through this evening. Blowing snow will reduce 
  visibilities to one half mile or less at times.

* ADDITIONAL DETAILS...Gusty southwest winds will develop this
  afternoon and persist through this evening, causing the falling
  snow to blow around. Yet another round of gusty winds and snow
  showers is possible beginning Wednesday afternoon. The best
  chance for freezing rain will exist north of Ninilchik into
  Kenai.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For the latest road conditions call 5 1 1 or visit
511.alaska.gov.

&&

$$

http://www.weather.gov/afc
706 
WWAK41 PAFC 010058
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
358 PM AKST Tue Nov 30 2021

AKZ131-010200-
/O.EXP.PAFC.BZ.W.0018.000000T0000Z-211201T0100Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
358 PM AKST Tue Nov 30 2021

...BLIZZARD WARNING HAS EXPIRED THROUGH THOMPSON PASS...

Blizzard conditions have ended, but blowing snow will continue to 
reduce visibility to less than one mile at times.

$$

AKZ121-011600-
/O.EXT.PAFC.WW.Y.0059.000000T0000Z-211201T1600Z/
Western Kenai Peninsula-
Including the cities of Kenai, Soldotna, Homer, 
and Cooper Landing
358 PM AKST Tue Nov 30 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM AKST
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Localized areas of 
  freezing rain will occur through the evening hours. Total snow 
  accumulations of 3 to 7 inches with total ice accumulations of 
  a trace to one tenth of an inch. Southwest winds 10 to 20 mph 
  with gusts to 30 mph.

* WHERE...Snow and blowing snow from Homer northward to Anchor 
  Point. Freezing rain most likely along the coast from Kenai 
  northward.

* WHEN...Until 7 AM AKST Wednesday.

* IMPACTS...Plan on slippery road conditions, especially with 
  any light icing through this evening. Blowing snow will reduce 
  visibilities to one half mile or less at times.

* ADDITIONAL DETAILS...Gusty southwest winds will develop this
  afternoon and persist through this evening, causing the falling
  snow to blow around. Yet another round of gusty winds and snow
  showers is possible beginning Wednesday afternoon. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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
Nov 29, 3:05 PM AKSTGale WarningAFC4 days
Nov 29, 3:05 PM AKSTSmall Craft AdvisoryAFC37 hr
Nov 29, 3:05 PM AKSTStorm WarningAFC6 days
Nov 29, 4:06 PM AKSTGale WarningAFC3 days
Nov 29, 4:06 PM AKSTSmall Craft AdvisoryAFC72 hr
Nov 30, 12:06 AM AKSTWinter Weather AdvisoryAFC25 hr
Nov 30, 4:03 AM AKSTGale WarningAFC60 hr
Nov 30, 4:09 AM AKSTSmall Craft AdvisoryAFC72 hr
Nov 30, 4:09 AM AKSTStorm WarningAFC60 hr
Nov 30, 4:09 AM AKSTHeavy Freezing Spray WarningAFC60 hr
Nov 30, 4:20 AM AKSTGale WarningAFC10 hr
Nov 30, 4:23 AM AKSTGale WarningAFC24 hr
Nov 30, 4:30 AM AKSTWinter Weather AdvisoryAFC24 hr
Nov 30, 2:42 PM AKSTSmall Craft AdvisoryAFC3 days
Nov 30, 2:55 PM AKSTWind Chill AdvisoryAFC10 hr

Nearby

Blizzard Warnings in Alaska, 2021Every blizzard warning in 2021

Sources

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