Alert archive / Alaska / Wind Chill Advisories in 2021

Wind Chill Advisory 23, NWS Fairbanks, AK

February 19, 2021

NWS Fairbanks, AK issued this wind chill advisory at Feb 19, 2021, 9:34 AM AKST. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 2021, 9:34 AM AKST (18:34 UTC)
Expired
Feb 20, 2021, 1:00 PM AKST
In force
27 hr
Issued by
NWS Fairbanks, AK

The text

As transmitted.

283 
WWAK41 PAFG 191834
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
934 AM AKST Fri Feb 19 2021

AKZ203-201500-
/O.CAN.PAFG.WC.W.0006.000000T0000Z-210219T2100Z/
/O.NEW.PAFG.WC.Y.0023.210219T1834Z-210222T1500Z/
Central Beaufort Sea Coast-
Including Nuiqsut, Prudhoe Bay, Alpine, Deadhorse, and Kuparuk
934 AM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 6 AM AKST MONDAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills expected to 55 below zero. The 
  cold wind chills will cause frostbite in as little as 10 minutes
  to exposed skin.

* WHERE...Central Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing snow
  and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$

AKZ204-201500-
/O.CAN.PAFG.WC.W.0006.000000T0000Z-210219T2100Z/
/O.NEW.PAFG.WC.Y.0023.210219T1834Z-210222T1500Z/
Eastern Beaufort Sea Coast-
Including Kaktovik and Flaxman Island
934 AM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 6 AM AKST MONDAY...
...WIND CHILL WARNING IS CANCELLED...

* WHAT...Very cold wind chills expected to 55 below zero. The cold
  wind chills will cause frostbite in as little as 10 minutes to
  exposed skin.

* WHERE...Eastern Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing snow
  and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$
3 follow-up statements
910 
WWAK41 PAFG 200052
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
352 PM AKST Fri Feb 19 2021

AKZ203-201500-
/O.CON.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
Central Beaufort Sea Coast-
Including Nuiqsut, Prudhoe Bay, Alpine, Deadhorse, and Kuparuk
352 PM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST MONDAY...

* WHAT...Very cold wind chills expected to 55 below zero. The 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin.

* WHERE...Central Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing 
  snow at times and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$

AKZ204-201500-
/O.CON.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
Eastern Beaufort Sea Coast-
Including Kaktovik and Flaxman Island
352 PM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST MONDAY...

* WHAT...Very cold wind chills expected to 55 below zero. The 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin.

* WHERE...Eastern Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing 
  snow at times and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$
716 
WWAK41 PAFG 201228
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
328 AM AKST Sat Feb 20 2021


AKZ203-210300-
/O.CON.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
Central Beaufort Sea Coast-
Including Nuiqsut, Prudhoe Bay, Alpine, Deadhorse, and Kuparuk
328 AM AKST Sat Feb 20 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST MONDAY...

* WHAT...Very cold wind chills expected to 55 below zero. The 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin.

* WHERE...Central Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing 
  snow at times and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$

AKZ204-210300-
/O.CON.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
Eastern Beaufort Sea Coast-
Including Kaktovik and Flaxman Island
328 AM AKST Sat Feb 20 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST MONDAY...

* WHAT...Very cold wind chills expected to 55 below zero. The 
  cold wind chills will cause frostbite in as little as 10 
  minutes to exposed skin.

* WHERE...Eastern Beaufort Sea Coast.

* WHEN...Now to 6 AM Monday.

* ADDITIONAL DETAILS...Winds 20 to 30 mph combined with cold 
  temperatures will result in reduced visibilities in blowing 
  snow at times and very cold wind chills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$
808 
WWAK41 PAFG 202200
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
100 PM AKST Sat Feb 20 2021

AKZ203-211700-
/O.CAN.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
/O.NEW.PAFG.WW.Y.0030.210220T2200Z-210222T1500Z/
Central Beaufort Sea Coast-
Including Nuiqsut, Prudhoe Bay, Alpine, Deadhorse, and Kuparuk
100 PM AKST Sat Feb 20 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM AKST MONDAY...

* WHAT...Very cold wind chills occuring to 55 below zero and snow
  and blowing snow expected. The cold wind chills will cause 
  frostbite in as little as 10 minutes to exposed skin.

* WHERE...Central Beaufort Sea Coast.

* WHEN...Until 6 AM Monday.

* ADDITIONAL DETAILS...Snow and blowing snow will develop Sunday
  afternoon with winds gusting as high as 40 mph. Plan on 
  difficult travel conditions and reduced visibility to one half 
  mile or less at times. Snow accumulations of up to one inch are 
  expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties.

$$

AKZ204-211700-
/O.CAN.PAFG.WC.Y.0023.000000T0000Z-210222T1500Z/
/O.NEW.PAFG.WW.Y.0030.210220T2200Z-210222T1800Z/
Eastern Beaufort Sea Coast-
Including Kaktovik and Flaxman Island
100 PM AKST Sat Feb 20 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM AKST MONDAY...

* WHAT...Very cold wind chills occuring to 55 below zero and snow
  and blowing snow expected. The cold wind chills will cause 
  frostbite in as little as 10 minutes to exposed skin.

* WHERE...Eastern Beaufort Sea Coast.

* WHEN...Until 9 AM Monday.

* ADDITIONAL DETAILS...Snow and blowing snow will develop Sunday
  afternoon with winds gusting as high as 45 mph. Plan on 
  difficult travel conditions and reduced visibility to one half 
  mile or less at times in blowing snow. Snow accumulations of up 
  to one inch are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties.

$$

What forecasters said that day

The local office's own words before this wind chill advisory 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 wind chill advisory went out at Feb 19, 1:58 AM AKST, 7 hours 36 minutes earlier.

Area forecast discussion, Feb 19, 1:58 AM AKST, 7 hours 36 minutes before
Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
158 AM AKST Fri Feb 19 2021

.SYNOPSIS...
A front continues to move south and east through the Interior and
will usher in much colder temperatures as snow in the Fortymile,
the Deltana Flats, and Upper Tanana Valley as well as the Eastern
Alaska Range diminishes this afternoon. Winds will diminish this
afternoon along the Eastern North Slope and along the Northern
portions of the Seward Peninsula helping to moderate the very cold
wind chill values seen there currently. Well below normal
temperatures will continue into the middle of next week.

&&

.DISCUSSION...
Models...the 19/00z model suite initialized well against the 00z
surface analysis and initialized well against the 06z surface
analysis. Model spread remains minimal in the short range and
increases in the mid range and increases dramatically in the
extended range.

Aloft at 500 hpa, a longwave trough extends southward from the
high Canadian Arctic over Alaska and the Eastern Gulf of Alaska
while a ridge extends north out of the Northern Pacific into the
Eastern Bering Sea. A strong shortwave over Central Alaska
continues to push south and east into the Yukon through Saturday.
A second shortwave currently along 80N will dive south to be over
the North Slope Saturday and over the Interior on Sunday.

At 850 hpa, temperatures around 15 below over Fairbanks this
morning will drop to near 25 below later today and will remain in
the 20 to 30 below range through early next week over much of the
North Slope and Interior. Alternating periods of clouds and
partly cloudy skies with south moving shortwaves will produce
surface temperatures in the 30 to 40 below range over much of the
Interior and North Slope.

At the surface, strong low pressure in the northeast Gulf of
Alaska continues to bring moisture north and west into the Central
and Eastern Interior south and east of a Fort Yukon to Fairbanks
line. Snow is expected to diminish this afternoon in the Fortymile
Country and this evening in the Eastern Alaska Range. An Arctic
boundary continues to push south into the interior and will push
the snow into the Yukon. Much colder temperatures are expected
into early next week with temperatures in the Interior dropping
into the 30 to 40 below range with alternating periods of mostly
clear skies and clouds and flurries as weak shortwaves pass south
and east over the North Slope and Interior.

North Slope and Brooks Range...
Increasing cloud cover over the western North Slope has resulted
in warming temperatures across the central and western Arctic
coasts. Light snow and occasional flurries snow will persist into
this evening.  Wind Chill Warnings continuing for the eastern
Arctic coast this morning. Winds will decrease allowing the low
wind chill values to moderate over the Eastern North Slope this
afternoon. Temperatures are expected to remain below
climatological normal over the next couple of days.

West Coast and Western Interior...
Overall quiet weather conditions for the coastal areas for the
short term forecast. Cold wind chill values over the northern
Seward Peninsula are expected to moderate as winds diminish later
this morning. Otherwise, temperatures expected to remain well
below normal going into next week.

Extended Days 4 to 7...A strong cold core low near Banks Island
will dig south and bring in another round of cold temperatures
for portions of the state going into early next week. The extent
to this influence remains to be seen, but could result in another
extended cold outbreak for areas like the North Slope and Brooks
Range.

&&

Extended Days 4 to 7...A strong cold core low near Banks Island
will dig south and bring in another round of cold temperatures
for portions of the state going into early next week. The extent
to this influence remains to be seen, but could result in another
extended cold outbreak for areas like the North Slope and Brooks
Range.

&&

Coastal Hazard Potential Days 3 and 4...None.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
Wind Chill Advisory for AKZ210.

Wind Chill Warning for AKZ203-AKZ204.

Winter Weather Advisory for AKZ223-AKZ224-AKZ226.
&&

CCC FEB 21

Nearby

Wind Chill Advisories in Alaska, 2021Every wind chill advisory 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.