Alert archive / Alaska / Wind Chill Advisories in 2021

Wind Chill Advisory 6, NWS Anchorage, AK

February 19, 2021

NWS Anchorage, AK issued this wind chill advisory at Feb 19, 2021, 4:23 AM AKST. It took effect at Feb 19, 2021, 9:00 PM AKST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 2021, 4:23 AM AKST (13:23 UTC)
In effect from
Feb 19, 2021, 9:00 PM AKST
Expired
Feb 20, 2021, 3:01 PM AKST
In force
18 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

884 
WWAK42 PAFC 191323 CCA
WSWALU

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Anchorage AK
423 AM AKST Fri Feb 19 2021

AKZ152-200300-
/O.NEW.PAFC.WC.Y.0006.210220T0600Z-210221T2100Z/
Lower Kuskokwim Valley-
Including the cities of Aniak and Sleetmute
423 AM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
AKST SUNDAY...

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

* WHERE...Lower Kuskokwim Valley.

* WHEN...From 9 PM this evening to noon AKST Sunday.

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

* ADDITIONAL DETAILS...A cold Arctic airmass arriving over
  Southwest Alaska will cause wind chill values to drop to 40 
  below zero during the overnight hours tonight into Saturday, and
  again Saturday night into Sunday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside, and use caution while traveling. Wear 
appropriate clothing and take care to not leave any skin exposed.

&&

$$

AKZ155-200300-
/O.NEW.PAFC.WC.Y.0006.210220T0600Z-210221T2100Z/
Kuskokwim Delta-
Including the cities of Bethel, Hooper Bay, and Nunivak Island
423 AM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON
AKST SUNDAY...

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

* WHERE...Kuskokwim Delta.

* WHEN...From 9 PM this evening to noon AKST Sunday.

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

* ADDITIONAL DETAILS...A cold Arctic airmass arriving over
  Southwest Alaska will cause temperatures to drop to 10 to 15
  degrees below zero. In addition, northerly winds between 20 to
  30 mph will create wind chill values as low as 45 below zero
  during the overnight hours tonight into Saturday, and again 
  Saturday night into Sunday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside, and use caution while traveling. Wear 
appropriate clothing and take care to not leave any skin exposed.

&&

$$

AKZ195-200300-
/O.COR.PAFC.WW.Y.0012.210219T1500Z-210220T0600Z/
Pribilof Islands-
Including the city of Saint Paul
423 AM AKST Fri Feb 19 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

* WHAT...Blowing snow expected. Total snow accumulations of 3 to 
  6 inches. East winds 30 to 40 mph with gusts up to 50 mph.

* WHERE...Pribilof Islands.

* WHEN...From 6 AM to 9 PM AKST today.

* IMPACTS...Areas of blowing snow could significantly reduce 
  visibility to one half mile or less.

* ADDITIONAL DETAILS...Light snow will increase in intensity
  throughout the day. Conditions will improve during the evening
  as the front lifts northeast of the area. There remains
  uncertainty as to how much warm air moves in with the system
  which could impact precipitation type, possibly causing some
  rain to mix in at times this afternoon and evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

&&

$$

http://www.weather.gov/afc
4 follow-up statements
628 
WWAK42 PAFC 200041
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
341 PM AKST Fri Feb 19 2021

AKZ152-200145-
/O.CAN.PAFC.WC.Y.0006.210220T0600Z-210221T2100Z/
Lower Kuskokwim Valley-
Including the cities of Aniak and Sleetmute
341 PM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY IS CANCELLED...

Wind Chill Advisory is cancelled for the Kuskokwim Valley as wind
chill values are not expected to reach 40 degrees below zero. 
Even though temperatures will be very cold in the negative teens 
below zero, winds are expected be fairly light to nearly calm 
keeping any wind chills to around 30 to 35 degrees below zero.

$$

AKZ195-200600-
/O.CON.PAFC.WW.Y.0012.000000T0000Z-210220T0600Z/
Pribilof Islands-
Including the city of Saint Paul
341 PM AKST Fri Feb 19 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

* WHAT...Blowing snow occurring. Additional snow accumulations up
  to 1 inch with storm total accumulations of 3 to 6 inches. East
  winds 30 to 40 mph with gusts up to 50 mph.

* WHERE...Pribilof Islands.

* WHEN...Through 9 PM AKST this evening.

* IMPACTS...Areas of blowing snow could significantly reduce 
  visibility to one half mile or less.

* ADDITIONAL DETAILS...Snow will continue to fall throughout the
  Pribilof Islands through the remainder of the afternoon and into
  the evening hours. Conditions will gradually improve during the
  evening as the front lifts northeast of the area. Enough cold 
  air is in place with this system and is expected to keep 
  precipitation all snow as a result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

&&

$$

AKZ155-201400-
/O.CON.PAFC.WC.Y.0006.210220T0600Z-210221T2100Z/
Kuskokwim Delta-
Including the cities of Bethel, Hooper Bay, and Nunivak Island
341 PM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO NOON AKST SUNDAY...

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

* WHERE...Kuskokwim Delta.

* WHEN...From 9 PM this evening to noon AKST Sunday.

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

* ADDITIONAL DETAILS...A cold Arctic airmass arriving over 
  Southwest Alaska will cause temperatures to drop to 10 to 15 
  degrees below zero. In addition, northerly winds between 20 to 
  30 mph will create wind chill values as low as 45 below zero 
  during the overnight hours tonight into Saturday, and again 
  Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside, and use caution while traveling. Wear
appropriate clothing and take care to not leave any skin exposed.

&&

$$

http://www.weather.gov/afc
534 
WWAK42 PAFC 200606
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
906 PM AKST Fri Feb 19 2021

AKZ195-200715-
/O.EXP.PAFC.WW.Y.0012.000000T0000Z-210220T0600Z/
Pribilof Islands-
Including the city of Saint Paul
906 PM AKST Fri Feb 19 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snow and winds have diminished across the Pribilof Islands.
Conditions will continue to improve overnight. 

$$

AKZ155-201915-
/O.CON.PAFC.WC.Y.0006.000000T0000Z-210221T2100Z/
Kuskokwim Delta-
Including the cities of Bethel, Hooper Bay, and Nunivak Island
906 PM AKST Fri Feb 19 2021

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

* WHAT...Very cold wind chills. Wind chills as low as 45 below 
  zero.

* WHERE...Kuskokwim Delta.

* WHEN...Until noon AKST Sunday.

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

* ADDITIONAL DETAILS...A cold Arctic airmass arriving over 
  Southwest Alaska will cause temperatures to drop to 10 to 15 
  degrees below zero. In addition, northerly winds between 20 to 
  30 mph will create wind chill values as low as 45 below zero 
  during the overnight hours tonight into Saturday, and again 
  Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

http://www.weather.gov/afc
609 
WWAK42 PAFC 201324
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
424 AM AKST Sat Feb 20 2021

AKZ155-212100-
/O.CON.PAFC.WC.Y.0006.000000T0000Z-210221T2100Z/
Kuskokwim Delta-
Including the cities of Bethel, Hooper Bay, and Nunivak Island
424 AM AKST Sat Feb 20 2021

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

* WHAT...Very cold wind chills. Wind chills as low as 45 below 
  zero.

* WHERE...Kuskokwim Delta.

* WHEN...Until noon AKST Sunday.

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

* ADDITIONAL DETAILS...A cold Arctic airmass arriving over
  Southwest Alaska will cause temperatures to drop to 10 to 15
  degrees below zero. In addition, northerly winds between 20 to
  30 mph will create wind chill values as low as 45 below zero
  during the overnight hours Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Limit time outside, and use caution while traveling. Wear
appropriate clothing and take care to not leave any skin exposed.

&&

$$

http://www.weather.gov/afc
290 
WWAK42 PAFC 210001
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
301 PM AKST Sat Feb 20 2021

AKZ155-210115-
/O.CAN.PAFC.WC.Y.0006.000000T0000Z-210221T2100Z/
Kuskokwim Delta-
Including the cities of Bethel, Hooper Bay, and Nunivak Island
301 PM AKST Sat Feb 20 2021

...WIND CHILL ADVISORY IS CANCELLED...

Wind Chill Advisory is cancelled for the Kuskokwim Delta.
Northeast winds are expected to continue slowly diminishing as we
head into the evening hours to around 5 to 10 mph. While very 
cold temperatures are expected once again tonight, with the winds 
diminishing the coldest wind chills are only expected to be 
around 30 to 35 degrees below zero overnight through Sunday 
morning.

$$

http://www.weather.gov/afc

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 18, 3:40 PM AKSTHeavy Freezing Spray WarningAFC60 hr
Feb 18, 4:03 PM AKSTBrisk Wind AdvisoryAFC36 hr
Feb 18, 4:03 PM AKSTGale WarningAFC36 hr
Feb 18, 4:03 PM AKSTSmall Craft AdvisoryAFC36 hr
Feb 18, 4:22 PM AKSTWinter Weather AdvisoryAFC29 hr
Feb 18, 9:13 PM AKSTDense Fog AdvisoryAFC8 hr
Feb 19, 4:04 AM AKSTSmall Craft AdvisoryAFC24 hr
Feb 19, 4:13 AM AKSTGale WarningAFC48 hr
Feb 19, 4:13 AM AKSTSmall Craft AdvisoryAFC35 hr
Feb 19, 4:13 AM AKSTStorm WarningAFC11 hr
Feb 19, 4:13 AM AKSTHeavy Freezing Spray WarningAFC35 hr

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.