Alert archive / Alaska / Blizzard Warnings in 2022

Blizzard Warning 8, NWS Anchorage, AK

December 22, 2022

NWS Anchorage, AK issued this blizzard warning at Dec 22, 2022, 4:35 AM AKST. It took effect at Dec 22, 2022, 8:00 PM AKST. It was in force for 37 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 22, 2022, 4:35 AM AKST (13:35 UTC)
In effect from
Dec 22, 2022, 8:00 PM AKST
Expired
Dec 24, 2022, 9:00 AM AKST
In force
37 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

166 
WWAK41 PAFC 221335
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
435 AM AKST Thu Dec 22 2022

AKZ111-230300-
/O.UPG.PAFC.WW.Y.0049.221223T0300Z-221224T0300Z/
/O.NEW.PAFC.BZ.W.0008.221223T0500Z-221224T0500Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
435 AM AKST Thu Dec 22 2022

...BLIZZARD WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM AKST
FRIDAY...

* WHAT...Blizzard conditions expected at times due to blowing
  snow. Northeast winds 35 to 50 mph gusting as high as 65 mph. 
  Visibility reduced to as low as 1/4 mile.

* WHERE...Matanuska Valley.

* WHEN...From 8 PM this evening to 8 PM AKST Friday.

* IMPACTS...Widespread blowing snow could significantly reduce
  visibility. The hazardous conditions could impact the Friday
  morning commute. Very strong winds could cause extensive tree
  damage and cause power outages. Cold wind chills as low as 30
  below zero could cause frostbite on exposed skin in as little 
  as 10 minutes.

* ADDITIONAL DETAILS...Strong northeasterly winds will develop
  late Thursday afternoon, quickly increasing in intensity through
  Thursday evening. The period of strongest winds is expected
  between 3 AM and 3 PM Friday. Winds are expected to slowly
  diminish Friday evening through Saturday.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ131-230300-
/O.EXB.PAFC.WC.Y.0004.221223T1000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
435 AM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM FRIDAY TO 1 PM AKST
SATURDAY THROUGH THOMPSON PASS...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  50 below zero.

* WHERE...Thompson Pass.

* WHEN...From 1 AM Friday to 1 PM AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Northeast winds 30 to 45 mph with gusts to
  60 mph may result in areas of blowing and drifting snow through
  Thompson Pass. Any blowing snow may reduce visibility.
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

AKZ141-230300-
/O.CON.PAFC.WC.Y.0004.221223T0600Z-221224T0300Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
435 AM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM AKST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  60 below zero.

* WHERE...Copper River Basin.

* WHEN...From 9 PM this evening to 6 PM AKST Friday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff with sustained winds between 15 and 30 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
8 follow-up statements
538 
WWAK41 PAFC 221708 CCA
WSWAER

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Anchorage AK
808 AM AKST Thu Dec 22 2022

AKZ111-230300-
/O.UPG.PAFC.WW.Y.0049.221223T0300Z-221224T0300Z/
/O.COR.PAFC.BZ.W.0008.221223T0500Z-221224T0500Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
808 AM AKST Thu Dec 22 2022

...BLIZZARD WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM AKST
FRIDAY...

* WHAT...Blizzard conditions expected. Northeast winds 35 to 50 
  mph gusting as high as 65 mph. Visibility reduced to as low as 
  1/4 mile in blowing snow.

* WHERE...Matanuska Valley.

* WHEN...From 8 PM this evening to 8 PM AKST Friday.

* IMPACTS...Widespread blowing snow could significantly reduce
  visibility. The hazardous conditions could impact the Friday
  morning commute. Very strong winds could cause tree damage and
  cause power outages. Cold wind chills as low as 20 below zero 
  could cause frostbite on exposed skin in as little as 10 
  minutes.

* ADDITIONAL DETAILS...Strong northeasterly winds will develop
  late Thursday afternoon, quickly increasing in intensity through
  Thursday evening. The period of strongest winds is expected
  between 3 AM and 3 PM Friday. Winds are expected to slowly
  diminish Friday evening through Saturday.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ131-230300-
/O.EXB.PAFC.WC.Y.0004.221223T1000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
808 AM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY IN EFFECT FROM 1 AM FRIDAY TO 1 PM AKST
SATURDAY THROUGH THOMPSON PASS...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  50 below zero.

* WHERE...Thompson Pass.

* WHEN...From 1 AM Friday to 1 PM AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Northeast winds 30 to 45 mph with gusts to
  60 mph may result in areas of blowing and drifting snow through
  Thompson Pass. Any blowing snow may reduce visibility.
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

AKZ141-230300-
/O.CON.PAFC.WC.Y.0004.221223T0600Z-221224T0300Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
808 AM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM AKST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  60 below zero.

* WHERE...Copper River Basin.

* WHEN...From 9 PM this evening to 6 PM AKST Friday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff with sustained winds between 15 and 30 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
623 
WWAK41 PAFC 230001
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
301 PM AKST Thu Dec 22 2022

AKZ111-231315-
/O.CON.PAFC.BZ.W.0008.221223T0500Z-221224T0500Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
301 PM AKST Thu Dec 22 2022

...BLIZZARD WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
8 PM AKST FRIDAY...

* WHAT...Blizzard conditions expected. Northeast winds 35 to 50
  mph with gusts as high as 65 mph. Visibility reduced to as low
  as 1/4 mile in blowing snow. There will not be any new snow for
  this event, just blowing around of existing snow on the ground. 

* WHERE...Matanuska Valley.

* WHEN...From 8 PM this evening to 8 PM AKST Friday.

* IMPACTS...Widespread blowing snow will significantly reduce
  visibility. The hazardous conditions could impact travel on area
  roadways due to the reduced visibility and drifting of snow. 
  Very strong winds could cause tree damage and cause power 
  outages. Cold wind chills as low as 20 to 30 below zero could 
  cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Northeasterly winds will rapidly strengthen
  this evening, then peak between 3 AM and 3 PM Friday. Winds are
  expected to slowly diminish Friday evening through Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ131-231315-
/O.CON.PAFC.WC.Y.0004.221223T1000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
301 PM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 AM FRIDAY TO 1 PM
AKST SATURDAY THROUGH THOMPSON PASS...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  50 below zero.

* WHERE...Thompson Pass.

* WHEN...From 1 AM Friday to 1 PM AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Northeast winds 30 to 45 mph with gusts to
  60 mph may result in areas of blowing and drifting snow through
  Thompson Pass. Any blowing snow may reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

AKZ141-231315-
/O.CON.PAFC.WC.Y.0004.221223T0600Z-221224T0300Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
301 PM AKST Thu Dec 22 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM AKST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 40
  to 55 below zero.

* WHERE...Copper River Basin.

* WHEN...From 9 PM this evening to 6 PM AKST Friday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
346 
WWAK41 PAFC 231315
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
415 AM AKST Fri Dec 23 2022

AKZ131-240300-
/O.EXA.PAFC.BZ.W.0008.000000T0000Z-221224T0500Z/
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
415 AM AKST Fri Dec 23 2022

...BLIZZARD WARNING IN EFFECT UNTIL 8 PM AKST THIS EVENING...

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST
SATURDAY FOR THOMPSON PASS...

* WHAT...For the Blizzard Warning, blizzard conditions expected.
  Winds gusting as high as 65 mph. Visibility reduced to as low as
  1/4 mile in blowing snow. There will not be any new snow for
  this event, just blowing around of existing snow on the ground.
  For the Wind Chill Advisory, very cold wind chills. Wind chills
  as low as 50 below zero.

* WHERE...For the Blizzard Warning, Thompson Pass and Valdez. For
  the Wind Chill Advisory, Thompson Pass. 

* WHEN...For the Blizzard Warning, until 8 PM AKST this evening. 
  For the Wind Chill Advisory, until 1 PM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce
  visibility. The hazardous conditions could impact travel on area
  roadways due to the reduced visibility and drifting of snow. The
  dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 5 minutes.

* ADDITIONAL DETAILS...The strongest winds are expected between
  early morning and mid afternoon Friday. Winds are then expected
  to slowly diminish Friday evening through Saturday. Temperatures
  are expected to drop throughout the day with the coldest wind
  chill values later this afternoon through Saturday.

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. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

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

&&

$$

AKZ111-240300-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T0500Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
415 AM AKST Fri Dec 23 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM AKST THIS
EVENING...

* WHAT...Blizzard conditions expected. Northeast winds 35 to 55
  mph with gusts as high as 75 mph. Visibility reduced to as low
  as 1/4 mile in blowing snow. There will not be any new snow for
  this event, just blowing around of existing snow on the ground.

* WHERE...Matanuska Valley.

* WHEN...Until 8 PM AKST this evening.

* IMPACTS...Widespread blowing snow will significantly reduce
  visibility. The hazardous conditions could impact travel on area
  roadways due to the reduced visibility and drifting of snow.
  Very strong winds could cause tree damage and cause power
  outages. Cold wind chills as low as 20 to 30 below zero this
  evening could cause frostbite on exposed skin in as little as 
  10 minutes.

* ADDITIONAL DETAILS...The strongest winds are expected between
  early morning and mid afternoon Friday. Winds are then expected
  to slowly diminish Friday evening through Saturday. Temperatures
  are expected to drop throughout the day with the coldest wind
  chill values tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ141-240300-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T0300Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
415 AM AKST Fri Dec 23 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  40 to 55 below zero.

* WHERE...Copper River Basin.

* WHEN...Until 6 PM AKST this evening.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
490 
WWAK41 PAFC 232355
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
255 PM AKST Fri Dec 23 2022

AKZ111-241500-
/O.EXT.PAFC.BZ.W.0008.000000T0000Z-221224T1800Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
255 PM AKST Fri Dec 23 2022

...BLIZZARD WARNING NOW IN EFFECT UNTIL 9 AM AKST SATURDAY...

* WHAT...Blizzard conditions occurring. Northeast winds 35 to 55 
  mph with gusts as high as 75 mph. Visibility reduced to as low 
  as 1/4 mile in blowing snow. There will not be any new snow for 
  this event, just blowing around of existing snow on the ground.

* WHERE...Matanuska Valley.

* WHEN...Until 9 AM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce
  visibility. The hazardous conditions will impact travel on area
  roadways due to the reduced visibility and drifting of snow.
  Very strong winds could cause tree damage and power outages. 
  Cold wind chills as low as 20 to 30 below zero could cause 
  frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will begin to slowly diminish this
  evening, then drop off more significantly during the day
  Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ131-241500-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T0500Z/
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
255 PM AKST Fri Dec 23 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM AKST THIS
EVENING THROUGH THOMPSON PASS...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST
SATURDAY THROUGH THOMPSON PASS...

* WHAT...Blizzard conditions and very cold wind chills. Winds
  gusting as high as 60 mph. Visibility reduced to as low as 1/4
  mile in blowing snow. There will not be any new snow for this
  event, just blowing around of existing snow on the ground. Wind
  chills as low as 50 below zero.

* WHERE...Thompson Pass.

* WHEN...For the Blizzard Warning, until 8 PM AKST this evening. 
  For the Wind Chill Advisory, until 1 PM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce 
  visibility. The hazardous conditions could impact travel on 
  area roadways due to the reduced visibility and drifting of 
  snow. The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Winds have peaked and started to diminish.
  Expect a continued diminishing trend in winds through tonight, 
  leading so slowly improving conditions through Thompson Pass. 
  The coldest wind chill values are expected tonight through 
  saturday morning.

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.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

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

&&

$$

AKZ141-240300-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T0300Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
255 PM AKST Fri Dec 23 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

* WHAT...Very cold wind chills expected. Wind chills as low as 25
  to 40 below zero.

* WHERE...Copper River Basin.

* WHEN...Until 6 PM AKST this evening.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
235 
WWAK41 PAFC 240240
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
540 PM AKST Fri Dec 23 2022

AKZ131-241545-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T0500Z/
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
540 PM AKST Fri Dec 23 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 8 PM AKST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST
SATURDAY...

* WHAT...Blizzard conditions and very cold wind chills. Winds 
  gusting as high as 60 mph. Visibility reduced to as low as 1/4 
  mile in blowing snow. There will not be any new snow for this 
  event, just blowing around of existing snow on the ground. 
  Wind chills as low as 50 below zero.

* WHERE...Thompson Pass.

* WHEN...For the Blizzard Warning, until 8 PM AKST this evening. 
  For the Wind Chill Advisory, until 1 PM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce 
  visibility. The hazardous conditions could impact travel on 
  area roadways due to the reduced visibility and drifting of 
  snow. The dangerously cold wind chills could cause frostbite 
  on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Winds have peaked and started to 
  diminish. Expect a continued diminishing trend in winds 
  through tonight, leading so slowly improving conditions 
  through Thompson Pass. The coldest wind chill values are 
  expected tonight through saturday morning.

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.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

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

&&

$$

AKZ111-241545-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T1800Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
540 PM AKST Fri Dec 23 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM AKST SATURDAY...

* WHAT...Blizzard conditions occurring. Northeast winds 35 to 55 
  mph with gusts as high as 75 mph. Visibility reduced to as low 
  as 1/4 mile in blowing snow. There will not be any new snow 
  for this event, just blowing around of existing snow on the 
  ground.

* WHERE...Matanuska Valley.

* WHEN...Until 9 AM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce 
  visibility. The hazardous conditions will impact travel on 
  area roadways due to the reduced visibility and drifting of 
  snow. Very strong winds could cause tree damage and power 
  outages. Cold wind chills as low as 20 to 30 below zero could 
  cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will begin to slowly diminish this 
  evening, then drop off more significantly during the day 
  Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ141-241545-
/O.EXT.PAFC.WC.Y.0004.000000T0000Z-221224T2100Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
540 PM AKST Fri Dec 23 2022

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON AKST SATURDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 25
  to 40 below zero with localized colder wind chills as low as 50
  below possible.

* WHERE...Copper River Basin.

* WHEN...Until noon AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
193 
WWAK41 PAFC 240508
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
808 PM AKST Fri Dec 23 2022

AKZ131-241900-
/O.EXP.PAFC.BZ.W.0008.000000T0000Z-221224T0500Z/
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
808 PM AKST Fri Dec 23 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST
SATURDAY...
...BLIZZARD WARNING HAS EXPIRED...

* WHAT...Very cold wind chills. Wind chills as low as 45 below
  zero. Winds will still be gusty with gusts around 40 mph
  possible. Blowing snow is still expected with visibilities as
  low as 3/4 mile.

* WHERE...Thompson Pass.

* WHEN...Until 1 PM AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will continue to diminish through the
  night. The coldest wind chill values are expected tonight
  through saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

AKZ111-241800-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T1800Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
808 PM AKST Fri Dec 23 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM AKST SATURDAY...

* WHAT...Blizzard conditions occurring. Northeast winds 30 to 50
  mph with gusts as high as 65 mph. Visibility reduced to as low 
  as 1/4 mile in blowing snow. There will not be any new snow for 
  this event, just blowing around of existing snow on the ground.

* WHERE...Matanuska Valley.

* WHEN...Until 9 AM AKST Saturday.

* IMPACTS...Widespread blowing snow will significantly reduce 
  visibility. The hazardous conditions will impact travel on 
  area roadways due to the reduced visibility and drifting of 
  snow. Very strong winds could cause tree damage and power 
  outages. Cold wind chills as low as 20 to 30 below zero could 
  cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will begin to slowly diminish this 
  evening, then drop off more significantly during the day 
  Saturday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ141-241900-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2100Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
808 PM AKST Fri Dec 23 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST
SATURDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 to 40 below zero with localized colder wind chills as low 
  as 50 below possible.

* WHERE...Copper River Basin.

* WHEN...Until noon AKST Saturday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
395 
WWAK41 PAFC 241251
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
351 AM AKST Sat Dec 24 2022

AKZ111-241800-
/O.CON.PAFC.BZ.W.0008.000000T0000Z-221224T1800Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
351 AM AKST Sat Dec 24 2022

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 AM AKST THIS
MORNING...

* WHAT...Blizzard conditions occurring. Northeast winds 25 to 40
  mph with gusts as high as 55 mph. Visibility reduced to as low 
  as 1/4 mile in blowing snow. There will not be any new snow for 
  this event, just blowing around of existing snow on the ground.

* WHERE...Matanuska Valley.

* WHEN...Until 9 AM AKST this morning.

* IMPACTS...Widespread blowing snow will significantly reduce 
  visibility. The hazardous conditions will impact travel on 
  area roadways due to the reduced visibility and drifting of 
  snow. Very strong winds could cause tree damage and power 
  outages. Cold wind chills as low as 20 to 30 below zero could 
  cause frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will continue to slowly diminish
  through mid-morning Saturday, then drop off more significantly
  this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. 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.

&&

$$

AKZ131-242200-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
351 AM AKST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST THIS
AFTERNOON...

* WHAT...Very cold wind chills. Wind chills as low as 45 below 
  zero. Winds will still be gusty with gusts around 40 mph 
  possible. Blowing snow is still expected with visibilities as 
  low as 3/4 mile.

* WHERE...Thompson Pass.

* WHEN...Until 1 PM AKST this afternoon.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will continue to slowly diminish
  through the day. The coldest wind chill values are expected
  through Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

AKZ141-242100-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2100Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
351 AM AKST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST TODAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 to 40 below zero with localized colder wind chills as low 
  as 50 below possible.

* WHERE...Copper River Basin.

* WHEN...Until noon AKST today.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

http://www.weather.gov/afc
720 
WWAK41 PAFC 241809
WSWAER

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
909 AM AKST Sat Dec 24 2022

AKZ111-241915-
/O.EXP.PAFC.BZ.W.0008.000000T0000Z-221224T1800Z/
Matanuska Valley-
Including the cities of Palmer, Wasilla, Sutton, and Chickaloon
909 AM AKST Sat Dec 24 2022

...BLIZZARD WARNING HAS EXPIRED...

Blizzard conditions have ended with continued gusty winds and
blowing snow, but no significant reductions in visibilities
expected.

$$

AKZ131-242200-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2200Z/
Northeast Prince William Sound-
Including the cities of Valdez and Thompson Pass
909 AM AKST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM AKST THIS
AFTERNOON...

* WHAT...Very cold wind chills. Wind chills as low as 45 below 
  zero. Winds will still be gusty with gusts around 40 mph 
  possible. Blowing snow is still expected with visibilities as 
  low as 3/4 mile.

* WHERE...Thompson Pass.

* WHEN...Until 1 PM AKST this afternoon.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Winds will continue to slowly diminish 
  through the day. The coldest wind chill values are expected 
  through Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

AKZ141-242100-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-221224T2100Z/
Copper River Basin-
Including the cities of Glennallen, Eureka, McCarthy, Paxson, 
and Slana
909 AM AKST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST TODAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 to 40 below zero with localized colder wind chills as low 
  as 50 below possible.

* WHERE...Copper River Basin.

* WHEN...Until noon AKST today.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 5 minutes.

* ADDITIONAL DETAILS...Lowest wind chills expected along the Tok 
  Cutoff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

http://www.weather.gov/afc

What forecasters said that day

The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this blizzard warning went out at Dec 21, 6:12 PM AKST, 10 hours 23 minutes earlier.

Area forecast discussion, Dec 21, 6:12 PM AKST, 10 hours 23 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
612 PM AKST Wed Dec 21 2022

.ANALYSIS AND UPPER LEVELS...

A strong blocking ridge is centered over the Chukchi Sea and
extends down over northern Alaska. A second ridge extends from off
the western coast of the CONUS northwestward to the eastern Bering
Sea. A narrow trough is getting squeezed between the two ridges
over southern Alaska. Most of southern Alaska remains entrenched
in a deep chill, with temperatures bottoming out at -20F to -35F
degrees over the Copper River Basin and Kuskokwim Valley and
single digits below zero to single digits above zero for most
of the rest of Southwest and Southcentral Alaska.

Meanwhile, a long-wave trough is positioned over the North Pacific
and southern Bering Sea. A deep surface low about 500 miles
southeast of Unalaska is lifting slowly northward, with a leading
occluded front approaching the eastern Aleutians, Alaska
Peninsula, and Kodiak Island. A stationary front remains in place
across the southern Bering Sea down to the Eastern Aleutians and
southern Alaska Peninsula. CIMMS MIMIC Precipitable Water
satellite products indicate a moisture rich environment across the
aforementioned areas, with 0.60" to 1" Total Precipitable Water
which is roughly 200% of normal for this time of year. This is
leading to areas of heavy rain, especially across the Eastern
Aleutians and Unalaska areas where a Flood Warning remains in
effect for urban and small stream flooding. The Unalaska (Dutch
Harbor) Airport recorded in excess of 6" of rain in the past two
days. With strong high pressure over northern Alaska and the
northern Bering Sea, pressure gradients are particularly tight
across the region. As a result, there is a large area of gale to
storm force winds extending from the Gulf of Alaska across the
Alaska Peninsula and much of the Bering Sea.

The entire upper trough and storm system is lifting slowly
northward toward southern Alaska. This is tightening pressure
gradients further across southern Alaska leading to gusty offshore
winds in many places. Precipitation lifted north to Kodiak Island
last night the form of snow, but changed to rain this morning as
warmer air arrived with the approaching frontal system. Lastly,
there is some light snow pushing onshore of the north Gulf coast
and Prince William Sound, primarily due to overrunning and upslope
flow.

&&

.MODEL DISCUSSION...

Model guidance is in decent agreement with larger scale features
through Friday. Differences then develop with the short-wave
driving southwestward across southern Alaska Friday night and the
resultant cyclogenesis somewhere over Southwest Alaska/eastern
Bering Sea Saturday night/Sunday. This could be an impactful
storm, but model spread is quite large and will need to await
future model runs to hone in on which areas will be impacted by
this system. Model spread also grows over the Gulf of Alaska
Friday night and Saturday with systems moving up from the
Pacific and across the Gulf. This will affect the wind and
precipitation forecast along the Gulf coast. In summary, forecast
confidence is average to above average through Friday, then low
beyond that.

&&

.AVIATION...
PANC...Increased pressure gradients and low level winds have
ended any threat of fog and low clouds. Northerly winds will
hold fairly steady below 12kts until Thursday night/Friday when
stronger northerlies will develop as cold air advects across the
region.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Tonight through Saturday)...

Mostly clear skies and well below temperatures will likely
persist for the rest of the week across the southern mainland. A
front extending ahead of a North Pacific low continues to push
northward toward the north Gulf coast. Areas of light snow will
persist tonight across the eastern Kenai and western Prince
William Sound mountains before tapering off Thursday morning.
Otherwise, most the precipitation will stay south of Prince
William Sound.

Over the coastal waters, increasing easterly winds associated the
front will reach to storm force with hurricane gusts possible
sometime tonight into Thursday morning. There remains some model
disagreements with the track and position of the low over the
Gulf, but winds are expected to slowly decrease to gales sometime
on Friday.

Meanwhile, an upper level trough from the Arctic will drive
southwestward across Southcentral Thursday night and Friday. This
will bring colder air towards the Copper River Basin along with a
tightening pressure gradient between a surface high across
northern Alaska and a low pressure system across the southern
Gulf. Strong winds across the Matanuska Valley with gusts up to 65
mph begins Thursday night and continues into Friday evening. The
main concern is blowing and snow drifts onto roads that may
produce hazardous travel conditions with a reduction to visibility
(please see our Winter Weather Advisory for more details). Winds
will then slowly diminish Friday evening into Saturday. Cold wind
chills are also expected for the Copper River Basin from Thursday
night to Friday evening. Heading into the weekend, the
aforementioned North Pacific low may bring a return of snow across
Southcentral, but details are still being ironed out so stay
tuned.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: This
afternoon through Saturday afternoon)...

An upper-level low in the vicinity of the Yukon Valley, continues
to elongate and weaken as heights build slightly into Southwest
Alaska. Temperatures tonight will be warmer than the last few
nights area wide as a North Pacific low and its associated front
lift northward towards the eastern Aleutians overnight tonight
into Thursday morning. The Alaska Peninsula (AKPEN) stands the
best chance to see precipitation from this system through tomorrow
evening in the form of a mix of rain and snow as the system moves
into the Bering Sea and southeasterly upslope flow continues.
There is also the chance that coastal sections of Bristol Bay and
the Kuskokwim Delta could see some light snow showers from this
system Thursday morning into the afternoon; amounts are expected
to light if any. Colder air works back into the area for Friday
and Saturday with mostly quiet weather conditions. There is some
uncertainty for Friday afternoon into Saturday, as guidance is
struggling with how to handle a westward ejecting shortwave off of
an upper-level trough over northern Yukon and where a potential
low pressure system spins up in response. As of now, most
precipitation looks confined to the AKPEN and coastal Bristol Bay
through Saturday morning as the system pulls westward towards the
eastern Aleutians Saturday afternoon. Stay tuned to the latest
forecast updates as details become more clear for the second half
of Friday into the day on Saturday. The overall trend is for a
more active AKPEN and a quieter mainland Southwest.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: This
afternoon through Saturday afternoon)...

The Aleutian Chain, Bering Sea, and Pribilofs will continue to be
active in the weather department for the short-term period. An
atmospheric river continues to reorient itself from north/south to
northwest/southeast. It is this system that is causing continued
flooding in Dutch Harbor/Unalaska and a Flood Warning remains out
until Friday morning. The heaviest rain over the central to
eastern Aleutians will taper off Thursday morning into the
afternoon as the low pressure system moves over the Chain and
westward into the Bering Sea. The Pribilof Islands will continue
to see a rain/snow mix and switching to all snow at times through
Friday afternoon. Dynamic cooling from precipitation intensity
stemming from the atmospheric river and the Bering system moving
westward is the reason why the Pribilofs temperatures remain on
the cooler side. Gusty conditions also continue throughout the
central and eastern Bering as a belt of easterly storm-force
winds is generated early Thursday morning through Thursday
afternoon on the Bering side and Pacific side of the Alaska
Peninsula when the North Pacific low and its front lifts north
towards the eastern Chain. Winds diminish back down back down to
gale-force late Thursday afternoon through the rest of the short-
term. There is uncertainty towards the end of the short-term
though as guidance is struggling on handling a westward ejecting
shortwave from an upper trough over the Yukon Territory and where
exactly a surface low spins up in the eastern Bering or along the
Aleutian Chain itself. Stay tuned to the latest forecast updates
as details continue to be fine-tuned regarding the evolution of
this system.

$$.LONG TERM FORECAST (Days 4 through 7: Sunday through Wednesday)...

It is becoming more clear that an upper level low will split off
of the cold trough over the mainland part of the state and set up
over the Eastern Aleutians/Alaska Peninsula by Sunday. Once this
upper level pattern is established, it will not change much
through the middle of next week. The result will be temperatures
generally returning to more seasonal levels with it colder in the
Bering Sea region and warmer over mainland Southern Alaska.

A surface low should be in that eastern Aleutian/Alaska Peninsula
region vertically stacked with the upper level low early through
middle of the week. This will not be a strong low but will keep
some clouds and precipitation in the area. The strongest low early
next week will be in the Gulf of Alaska Sunday into early Monday.
While most of the coast will see this precipitation in the form
of snow, areas around southern Prince William Sound may have
periods of rain. We will just have to watch the development of the
storm to see whether the warmer temperatures make it to the coast
or not.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Flood Warning 185.
Winter Weather Advisory 111 141.
MARINE...Heavy Freezing Spray 127 130 139 140 180 181 185.
Storm 130 131 132 138 150 155 160 165 179 180 185 351 352 414
Gale 119 120 127 128 136 137 139 141 170 171 172 181 411 412 413.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...SB
SOUTHCENTRAL ALASKA...MF
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...DN
LONG TERM...EZ

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 3:12 PM AKSTGale WarningAFC37 hr
Dec 21, 3:12 PM AKSTSmall Craft AdvisoryAFC37 hr
Dec 21, 3:12 PM AKSTHeavy Freezing Spray WarningAFC37 hr
Dec 21, 3:29 PM AKSTGale WarningAFC5 days
Dec 21, 4:04 PM AKSTWind Chill AdvisoryAFC3 days
Dec 21, 7:54 PM AKSTWinter Weather AdvisoryAFC9 hr
Dec 21, 9:13 PM AKSTHigh Wind WarningAFC9 hr
Dec 22, 3:05 AM AKSTGale WarningAFC48 hr
Dec 22, 3:51 AM AKSTGale WarningAFC24 hr
Dec 22, 3:51 AM AKSTSmall Craft AdvisoryAFC24 hr
Dec 22, 2:42 PM AKSTGale WarningAFC13 hr
Dec 22, 2:42 PM AKSTHeavy Freezing Spray WarningAFC13 hr

Nearby

Blizzard Warnings in Alaska, 2022Every blizzard warning in 2022

Sources

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