Alert archive / Minnesota / Wind Chill Advisories in 2021

Wind Chill Advisory 13, NWS Duluth, MN

February 16, 20217 counties in Minnesota

NWS Duluth, MN issued this wind chill advisory at Feb 16, 2021, 1:59 PM CST for 7 counties in Minnesota. It took effect at Feb 17, 2021, 12:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Feb 16, 2021, 1:59 PM CST (19:59 UTC)
In effect from
Feb 17, 2021, 12:00 AM CST
Expired
Feb 17, 2021, 9:00 AM CST
In force
9 hr
Issued by
NWS Duluth, MN

Counties Aitkin County, MN, Cass County, MN, Cook County, MN, Itasca County, MN, Koochiching County, MN, Lake County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 83 km from the middle of the area, began a volume at 20:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 8.0 hours before the alert went out and 129 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, International Fa, MN at 12:00Z on 2021-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2021-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1721 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
-64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

652 
WWUS43 KDLH 161959
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
159 PM CST Tue Feb 16 2021

MNZ010-011-018-019-025-026-035-170800-
/O.NEW.KDLH.WC.Y.0013.210217T0600Z-210217T1500Z/
Koochiching-North St. Louis-North Itasca-Central St. Louis-
North Cass-South Itasca-Northern Aitkin-
Including the cities of International Falls, Ely, Bigfork, 
Hibbing, Walker, Grand Rapids, and Hill City
159 PM CST Tue Feb 16 2021

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST WEDNESDAY...

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

* WHERE...Koochiching, North St. Louis, North Itasca, Central 
  St. Louis, North Cass, South Itasca and Northern Aitkin 
  Counties. This includes the Tribal Lands of the Mille Lacs 
  Band, Big Sandy Lake area and the Bois Forte Band, Deer Creek, 
  Nett Lake and, Lake Vermillion areas.

* WHEN...From midnight tonight to 9 AM CST Wednesday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
3 follow-up statements
518 
WWUS43 KDLH 170309
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
909 PM CST Tue Feb 16 2021

MNZ010-011-018-019-025-026-035-171500-
/O.CON.KDLH.WC.Y.0013.210217T0600Z-210217T1500Z/
Koochiching-North St. Louis-North Itasca-Central St. Louis-
North Cass-South Itasca-Northern Aitkin-
Including the cities of International Falls, Ely, Bigfork, 
Hibbing, Walker, Grand Rapids, and Hill City
909 PM CST Tue Feb 16 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
WEDNESDAY...

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

* WHERE...Koochiching, North St. Louis, North Itasca, Central 
  St. Louis, North Cass, South Itasca and Northern Aitkin 
  Counties. This includes the Tribal Lands of the Mille Lacs 
  Band, Big Sandy Lake area and the Bois Forte Band, Deer Creek, 
  Nett Lake and, Lake Vermillion areas.

* WHEN...From midnight tonight to 9 AM CST Wednesday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
318 
WWUS43 KDLH 170917
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
317 AM CST Wed Feb 17 2021

MNZ012-171500-
/O.EXA.KDLH.WC.Y.0013.000000T0000Z-210217T1500Z/
Northern Cook and Lake-
Including the city of Isabella
317 AM CST Wed Feb 17 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...Northern Cook and Lake County.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MNZ010-011-018-019-025-026-035-171500-
/O.CON.KDLH.WC.Y.0013.000000T0000Z-210217T1500Z/
Koochiching-North St. Louis-North Itasca-Central St. Louis-
North Cass-South Itasca-Northern Aitkin-
Including the cities of International Falls, Ely, Bigfork, 
Hibbing, Walker, Grand Rapids, and Hill City
317 AM CST Wed Feb 17 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...

* WHAT...Very cold wind chills. Wind chills as low as 35 below 
  zero.

* WHERE...North Itasca, Central St. Louis, Northern Aitkin, 
  Koochiching, North St. Louis, South Itasca and North Cass 
  Counties. This includes the Tribal Lands of the Mille Lacs 
  Band, Big Sandy Lake area and the Bois Forte Band, Deer Creek, 
  Nett Lake and, Lake Vermillion areas.

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Melde

For more information from the National Weather Service visit
http://weather.gov/Duluth
859 
WWUS43 KDLH 171503
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
903 AM CST Wed Feb 17 2021

MNZ010>012-018-019-025-026-035-171615-
/O.EXP.KDLH.WC.Y.0013.000000T0000Z-210217T1500Z/
Koochiching-North St. Louis-Northern Cook and Lake-North Itasca-
Central St. Louis-North Cass-South Itasca-Northern Aitkin-
Including the cities of International Falls, Ely, Isabella, 
Bigfork, Hibbing, Walker, Grand Rapids, and Hill City
903 AM CST Wed Feb 17 2021

...WIND CHILL ADVISORY HAS EXPIRED...


$$

For more information from the National Weather Service visit
http://weather.gov/Duluth

Nearby

Wind Chill Advisories in Minnesota, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.