Alert archive / Alaska / High Wind Warnings in 2020

High Wind Warning 16, NWS Fairbanks, AK

December 20, 2020

NWS Fairbanks, AK issued this high wind warning at Dec 20, 2020, 11:15 AM AKST. It took effect at Dec 21, 2020, 3:00 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 20, 2020, 11:15 AM AKST (20:15 UTC)
In effect from
Dec 21, 2020, 3:00 PM AKST
Expired
Dec 23, 2020, 4:24 AM AKST
In force
37 hr
Issued by
NWS Fairbanks, AK

The text

As transmitted.

165 
WWAK73 PAFG 202015
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
1115 AM AKST Sun Dec 20 2020

AKZ225-211500-
/O.UPG.PAFG.HW.A.0008.201222T0300Z-201223T0900Z/
/O.NEW.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
1115 AM AKST Sun Dec 20 2020

...HIGH WIND WARNING IN EFFECT FROM 3 PM MONDAY TO 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along and near the northern foothills and passes of the
  Central Alaska Range.

* WHEN...From 3 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high
  winds are occurring or expected. Take precautions to protect
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ226-211500-
/O.UPG.PAFG.HW.A.0008.201222T0300Z-201223T0900Z/
/O.NEW.PAFG.HW.W.0016.201222T0300Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
1115 AM AKST Sun Dec 20 2020

...HIGH WIND WARNING IN EFFECT FROM 6 PM MONDAY TO 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along and near the northern foothills and passes of the
  Eastern Alaska Range.

* WHEN...From 6 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high
  winds are occurring or expected. Take precautions to protect
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-211500-
/O.NEW.PAFG.WI.Y.0034.201222T0300Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
1115 AM AKST Sun Dec 20 2020

...WIND ADVISORY IN EFFECT FROM 6 PM MONDAY TO 6 AM AKST
WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high
  winds are occurring or expected. Take precautions to protect
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
6 follow-up statements
297 
WWAK73 PAFG 202219
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
119 PM AKST Sun Dec 20 2020

AKZ225-211500-
/O.CON.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
119 PM AKST Sun Dec 20 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM MONDAY TO 6 AM
AKST WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along and near the northern foothills and passes of 
  the Central Alaska Range.

* WHEN...From 3 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ226-211500-
/O.CON.PAFG.HW.W.0016.201222T0300Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
119 PM AKST Sun Dec 20 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM MONDAY TO 6 AM
AKST WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along and near the northern foothills and passes of 
  the Eastern Alaska Range.

* WHEN...From 6 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-211500-
/O.CON.PAFG.WI.Y.0034.201222T0300Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
119 PM AKST Sun Dec 20 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM MONDAY TO 6 AM AKST
WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM Monday to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...A Wind Advisory means that strong winds are
  occurring or expected. Travel may be difficult. Secure loose
  objects which may be blown about by the wind.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
644 
WWAK73 PAFG 211417
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
517 AM AKST Mon Dec 21 2020

AKZ226-220300-
/O.EXT.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
517 AM AKST Mon Dec 21 2020

...HIGH WIND WARNING NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM AKST WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along the Richardson Highway south of Delta Junction.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power
  outages are possible. Travel could be difficult, especially for
  high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high
  winds are occurring or expected. Take precautions to protect
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ225-220300-
/O.CON.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
517 AM AKST Mon Dec 21 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM AKST WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Near Passes.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power
  outages are possible. Travel could be difficult, especially for
  high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high
  winds are occurring or expected. Take precautions to protect
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-220300-
/O.CON.PAFG.WI.Y.0034.201222T0300Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
517 AM AKST Mon Dec 21 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
AKST WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM this evening to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
837 
WWAK73 PAFG 212330
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
230 PM AKST Mon Dec 21 2020

AKZ225-221500-
/O.CON.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
230 PM AKST Mon Dec 21 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Near Passes.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ226-221500-
/O.CON.PAFG.HW.W.0016.201222T0000Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
230 PM AKST Mon Dec 21 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along the Richardson Highway south of Delta Junction.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-221500-
/O.CON.PAFG.WI.Y.0034.201222T0300Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
230 PM AKST Mon Dec 21 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
AKST WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM this evening to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
726 
WWAK73 PAFG 221415
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
515 AM AKST Tue Dec 22 2020

AKZ225-230300-
/O.CON.PAFG.HW.W.0016.000000T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
515 AM AKST Tue Dec 22 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Near Passes.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ226-230300-
/O.CON.PAFG.HW.W.0016.000000T0000Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
515 AM AKST Tue Dec 22 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along the Richardson Highway south of Delta Junction.

* WHEN...From 3 PM this afternoon to 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-230300-
/O.CON.PAFG.WI.Y.0034.000000T0000Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
515 AM AKST Tue Dec 22 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM this evening to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
324 
WWAK73 PAFG 222142
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
1242 PM AKST Tue Dec 22 2020

AKZ225-231500-
/O.CON.PAFG.HW.W.0016.000000T0000Z-201223T1500Z/
Denali-
Including the cities of Healy, Denali National Park, Carlo Creek,
and Kantishna
1242 PM AKST Tue Dec 22 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Near Passes.

* WHEN...Through 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ226-231500-
/O.CON.PAFG.HW.W.0016.000000T0000Z-201223T1500Z/
Eastern Alaska Range-
Including the cities of Mentasta Lake, Black Rapids, 
Donnelly Dome, Trims DOT Camp, Eagle Trail, and Mineral Lake
1242 PM AKST Tue Dec 22 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
WEDNESDAY...

* WHAT...South winds 40 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Along the Richardson Highway south of Delta Junction.

* WHEN...Through 6 AM AKST Wednesday.

* IMPACTS...Winds could blow down trees and power lines. Power 
  outages are possible. Travel could be difficult, especially 
  for high profile vehicles.

* ADDITIONAL DETAILS...A High Wind Warning means hazardous high 
  winds are occurring or expected. Take precautions to protect 
  life and prevent property damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

AKZ223-231500-
/O.CON.PAFG.WI.Y.0034.000000T0000Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
1242 PM AKST Tue Dec 22 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST WEDNESDAY...

* WHAT...Southeast winds 35 to 45 mph with gusts up to 60 mph 
  expected.

* WHERE...Deltana and Tanana Flats.

* WHEN...From 6 PM this evening to 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
263 
WWAK73 PAFG 231324
NPWAFG

URGENT - WEATHER MESSAGE
National Weather Service Fairbanks AK
424 AM AKST Wed Dec 23 2020

AKZ225-226-231430-
/O.CAN.PAFG.HW.W.0016.000000T0000Z-201223T1500Z/
Denali-Eastern Alaska Range-
Including the cities of Healy, Denali National Park, Carlo Creek,
Kantishna, Mentasta Lake, Black Rapids, Donnelly Dome, 
Trims DOT Camp, Eagle Trail, and Mineral Lake
424 AM AKST Wed Dec 23 2020

...HIGH WIND WARNING IS CANCELLED...

Winds have decreased. 

$$

AKZ223-231500-
/O.CON.PAFG.WI.Y.0034.000000T0000Z-201223T1500Z/
Deltana and Tanana Flats-
Including the cities of Salcha, Delta Junction, Fort Greely, 
Harding/Birch Lake, Dry Creek, Dot Lake, and Healy Lake
424 AM AKST Wed Dec 23 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST EARLY THIS
MORNING...

* WHAT...Southeast winds gusting to 50 mph occuring. 

* WHERE...Near Delta Junction. 

* WHEN...until 6 AM AKST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
 
* ADDITIONAL DETAILS...Winds are expected to decrease about 6am
  this morning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

What forecasters said that day

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

NWS Fairbanks, AK wrote its last area forecast discussion before this high wind warning went out at Dec 20, 6:50 AM AKST, 4 hours 25 minutes earlier.

Area forecast discussion, Dec 20, 6:50 AM AKST, 4 hours 25 minutes before
Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
650 AM AKST Sun Dec 20 2020

.SYNOPSIS...
A drastic pattern change will begin Monday across Northern Alaska
as a large low moves into the Bering, bringing a potentially
significant winter storm to the West Coast and Western Interior.
This storm will also aid in the development of strong southerly
gap winds through Alaska Range Passes and strong winds along the
Tanana River. Warmer temperatures will surge north, initially
across the Southern Interior Monday night then north to the
Arctic Coast by Wednesday. In the meantime, light snow is falling
across the Central Interior, from Tanana east to Fairbanks, as a
low moves into Alaska near Prince William Sound with an occluded
front draped across the Interior. Snow chances will diminish and
push east through today as the low weakens and moves into Canada.
Cold temperatures, coupled with gusty winds over Northwest Alaska,
are creating very cold wind chills this morning and will improve
today as winds decrease over the Interior.

&&

.DISCUSSION...
At the surface, a weak low moving into Prince William Sound will
spread light snow into the Central Interior and then into the
Eastern Interior this afternoon as the low and associated
occluded front tracks east. A weak trough in the Bering Sea will
continue to produce light snow from the Bering Strait south across
St. Lawrence Island into this evening. High pressure over the
high Arctic is relinquishing its grip on the weather for Northern
Alaska today. Attention then shifts to a strong low, sub 960 mb,
moving into the Bering Sea Monday. This storm will feed ample
moisture into the West Coast and Western Interior, as front
rotates around the low into the YK Delta and then moves north up
the coast, potentially bringing significant snowfall Monday night
into Tuesday. Snow moving north coupled with strengthening winds
for St. Lawrence Island and the YK Delta, may produce blizzard
conditions by Monday evening. In addition, a strong gradient will
develop over the Alaska Range, increasing southerly gap winds
through passes and creating a Tanana Valley Jet. This system will
also be responsible for bringing a surge of much warmer
temperatures into Northern Alaska, initially across the Southern
Interior Monday night then north to the Arctic Coast by
Wednesday.

Models converge on a solution that shows a strong low moving into
the Bering Sea by Monday morning, but diverge on the strength of
the main low. So, with this morning's forecast package, we leaned
on the GFS as it reflects a deeper low.

Aloft, at 500 mb, models initialize well with a trough over much
of Northern Alaska. A shortwave will move through the Central and
Eastern Interior today, weakening this afternoon as it moves into
Canada. A ridge will build into Western Alaska Monday morning
ahead of a deep 480 dam (decameter) low moving into the Southern
Bering and will remain quasi-stationary over the Bering through
Tuesday. The ridge builds north and east over Eastern Alaska and
the Yukon on Tuesday. This will bring strong southerly winds aloft
across the Alaska Range, aiding in the development of strong gap
winds, and brings much warmer temperatures to most of Northern
Alaska by Wednesday.

North Slope and Brooks Range...
A weak trough draped over the North Slope will remain through
Tuesday, keeping low ceilings and the potential for flurries
along the Beaufort Sea Coast. Winds will ease today, easing the
affects of any blowing and drifting snow, along with the cold wind
chills. Cold temperatures have settled in, especially along the
Arctic Plain, this morning. Wind increase slightly Monday, with
cold temperatures in place, wind chill values plummet Monday into
Monday night. Then, temperatures will moderate drastically
Tuesday as much warmer temperatures pushes into the region as
southerly flow develops over the region due to a ridge building
over the Interior.

West Coast and Western Interior...
Winds easing today, with the strongest winds hanging on just
offshore near Point Hope. Otherwise, relatively benign weather
conditions over much of the region as ridging builds in ahead of
a large storm moving into the Bering Sea Monday morning. A weak
trough will linger over the Bering Strait south to St. Lawrence
Island today, continuing to bring blowing snow and snow to St.
Lawrence, and diminishing tonight. Attention then shifts to
Monday through Tuesday, where a strong low will move into the
Bering Sea. This low will bring the potential for a significant
winter storm to much of the West Coast and Western Interior, with
heavy snow, strong winds, freezing rain for the Southern Western
Interior, and blizzard conditions for St. Lawrence Island and the
YK Delta late Monday into Tuesday. Strong wind with snow and
blowing snow, creating blizzard conditions, will spread north
along the West Coast Monday night into Tuesday, bringing low
visibilities. Expect 4 inches of snow for most areas south of the
Bering Strait with up to 7 inches on the east side of the Nulato
Hills. At this time, winds are expected to remain offshore, which
will limit any coastal flooding concerns.

Central and Eastern Interior...
Radar returns this morning show light snow falling over the
Fairbanks Area, this will gradually diminish through this
afternoon with the associated front weakening and moving east.
Snow accumulations of around one inch expected through tonight.
Otherwise, temperatures will remain steady this morning with the
increased cloud cover and light snow across the area. Winds will
decrease through the day, easing the affects of cold wind chills.
Temperatures will fall again Sunday night as a quick shot of
arctic air moves through before a big changes occur Monday, as an
upper level ridge moves over the region bringing a significant
warm up on Tuesday. Very strong south gap winds are expected to
develop in Alaska Range Passes Monday night and continue into
Tuesday as a strong Chinook moves into the area, keeping the
Fairbanks free of any precipitation. Strong inversions will likely
develop over the interior on Monday and Tuesday as temperatures
warm dramatically over the hills, but will be slower to warm in
Valleys where arctic air will remains trapped.

Coastal Hazard Potential for Days 3 and 4...
No concerns at this time.

Extended Forecast for Days 4 to 7...
Beginning the extended period on Wednesday, model concensus shows
an upper level trough parked over the Bering Sea with an
associated large low at the surface, keeping conditions unstable
over the West Coast and Western Interior. This complex will
remain quasi-stationary through Friday and move north as another
large low moves into the Southern Bering on Saturday. Lows will
develop and ride up the east side of the trough into Prince
William Sound on Wednesday through Friday, spreading moisture
north into the Central and Eastern Interior.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...

Winter Storm Watch for AKZ213-AKZ214-AKZ215-AKZ216.

High Wind Watch for AKZ225-AKZ226.

Wind Chill Advisory for AKZ217.

Winter Weather Advisory for AKZ201.

Heavy Freezing Spray Warning for PKZ210.

Small Craft Advisory for PKZ210.

Brisk Wind Advisory for PKZ220-PKZ225-PKZ230.

&&

RZ DEC 20

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 5:43 AM AKSTHigh Wind WatchAFG6 hr
Dec 20, 6:01 AM AKSTWind Chill AdvisoryAFG39 hr
Dec 20, 6:01 AM AKSTWinter Storm WatchAFG7 hr
Dec 20, 6:13 AM AKSTGale WarningAFG8 hr
Dec 20, 6:15 AM AKSTBrisk Wind AdvisoryAFG8 hr
Dec 20, 6:15 AM AKSTSmall Craft AdvisoryAFG8 hr
Dec 20, 6:15 AM AKSTHeavy Freezing Spray WarningAFG48 hr
Dec 20, 9:40 AM AKSTWind Chill AdvisoryAFG51 hr
Dec 20, 11:06 AM AKSTHigh Wind WarningAFG65 hr
Dec 20, 11:15 AM AKSTWind AdvisoryAFG67 hr
Dec 20, 1:12 PM AKSTBlizzard WarningAFG63 hr
Dec 20, 1:12 PM AKSTWinter Storm WatchAFG26 hr
Dec 20, 1:12 PM AKSTWinter Storm WarningAFG63 hr
Dec 20, 1:12 PM AKSTWinter Weather AdvisoryAFG56 hr
Dec 20, 2:21 PM AKSTBrisk Wind AdvisoryAFG16 hr
Dec 20, 2:21 PM AKSTBrisk Wind AdvisoryAFG16 hr
Dec 20, 2:21 PM AKSTGale WarningAFG40 hr

Nearby

High Wind Warnings in Alaska, 2020Every high wind warning in 2020

Sources

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