Alert archive / Minnesota / Wind Chill Advisories in 2021

Wind Chill Advisory 15, NWS Duluth, MN

December 28, 20215 counties in Minnesota

NWS Duluth, MN issued this wind chill advisory at Dec 28, 2021, 2:40 PM CST for 5 counties in Minnesota. It took effect at Dec 29, 2021, 12:00 AM CST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Dec 28, 2021, 2:40 PM CST (20:40 UTC)
In effect from
Dec 29, 2021, 12:00 AM CST
Expired
Dec 29, 2021, 11:00 AM CST
In force
11 hr
Issued by
NWS Duluth, MN

Counties Aitkin County, MN, Cass County, MN, Crow Wing County, MN, Itasca County, MN, Koochiching County, MN

The radar

The Duluth radar (KDLH), 129 km from the middle of the area, began a volume at 20:44 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, 8.7 hours before the alert went out and 162 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 2021-12-28Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2021-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939587897117Sfc1 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
707 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

421 
WWUS43 KDLH 282040
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
240 PM CST Tue Dec 28 2021

MNZ010-018-290845-
/O.NEW.KDLH.WC.Y.0015.211229T0600Z-211229T1700Z/
/O.CON.KDLH.WS.W.0010.000000T0000Z-211229T0600Z/
Koochiching-North Itasca-
Including the cities of International Falls and Bigfork
240 PM CST Tue Dec 28 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
CST WEDNESDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional 
  snow accumulations of 3 to 5 inches. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low 
  as 30 below zero.

* WHERE...Koochiching and North Itasca Counties. This includes 
  the Tribal Lands of the Bois Forte Band, Deer Creek and, Nett 
  Lake areas.

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  11 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ020-021-290845-
/O.CON.KDLH.WS.W.0010.000000T0000Z-211229T1000Z/
Southern Lake-Southern Cook-
Including the cities of Two Harbors, Silver Bay, and Grand Marais
240 PM CST Tue Dec 28 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM CST
WEDNESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches.

* WHERE...Southern Cook and Southern Lake Counties. This 
  includes the Tribal Lands of the Grand Portage Reservation.

* WHEN...Until 4 AM CST Wednesday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ025-026-033>036-290845-
/O.NEW.KDLH.WC.Y.0015.211229T0600Z-211229T1700Z/
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
North Cass-South Itasca-South Cass-Crow Wing-Northern Aitkin-
South Aitkin-
Including the cities of Walker, Grand Rapids, Pine River, 
Brainerd, Hill City, and Aitkin
240 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
CST WEDNESDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations of 2 to 4 inches. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 30 below 
  zero.

* WHERE...North Cass, South Itasca, South Cass, Crow Wing, 
  Northern Aitkin and South Aitkin Counties. This includes the 
  Tribal Lands of the Mille Lacs Band, East Lake and, Big Sandy 
  Lake areas.

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  11 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. The 
  dangerously cold wind chills could cause frostbite on exposed 
  skin in as little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ011-019-037-038-WIZ001-006-290600-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
North St. Louis-Central St. Louis-Carlton and South St. Louis-
Pine-Douglas-Burnett-
Including the cities of Ely, Hibbing, Duluth, Pine City, 
Hinckley, Superior, and Grantsburg
240 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches.

* WHERE...In Wisconsin, Burnett and Douglas Counties. In 
  Minnesota, Pine, Carlton and South St. Louis, Central St. 
  Louis and North St. Louis Counties. This includes the Tribal 
  Lands of the Fond du Lac Band, the Mille Lacs Band, Lena Lake 
  and, Hinckley areas and the Bois Forte Band, Lake Vermilion 
  and, Nett Lake areas.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ012-290845-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T1000Z/
Northern Cook and Lake-
Including the city of Isabella
240 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Northern Cook and Lake County.

* WHEN...Until 4 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

WIZ002-007>009-290600-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
Bayfield-Washburn-Sawyer-Price-
Including the cities of Washburn, Bayfield, Spooner, Hayward, 
and Phillips
240 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Sawyer, Washburn, Bayfield and Price Counties. This 
  includes the Tribal Lands of the Red Cliff Band and the Lac 
  Courte Oreilles Reservation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
3 follow-up statements
467 
WWUS43 KDLH 290159
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
759 PM CST Tue Dec 28 2021

MNZ033-034-036-291400-
/O.CAN.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
/O.CON.KDLH.WC.Y.0015.211229T0600Z-211229T1700Z/
South Cass-Crow Wing-South Aitkin-
Including the cities of Pine River, Brainerd, and Aitkin
759 PM CST Tue Dec 28 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
11 AM CST WEDNESDAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

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

* WHERE...South Cass, Crow Wing and South Aitkin Counties. This 
  includes the Tribal Lands of the Mille Lacs Band, East Lake 
  area.

* WHEN...From midnight tonight to 11 AM CST Wednesday.

* 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. 

&&

$$

MNZ010-018-291400-
/O.CON.KDLH.WS.W.0010.000000T0000Z-211229T0600Z/
/O.CON.KDLH.WC.Y.0015.211229T0600Z-211229T1700Z/
Koochiching-North Itasca-
Including the cities of International Falls and Bigfork
759 PM CST Tue Dec 28 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
11 AM CST WEDNESDAY...

* WHAT...For the Winter Storm Warning, heavy snow. Additional 
  snow accumulations of up to one inch. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low 
  as 30 below zero.

* WHERE...North Itasca and Koochiching Counties. This includes 
  the Tribal Lands of the Bois Forte Band, Deer Creek and, Nett 
  Lake areas.

* WHEN...For the Winter Storm Warning, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  11 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The cold wind 
  chills could cause frostbite on exposed skin in as little as 
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

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

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ020-021-291000-
/O.CON.KDLH.WS.W.0010.000000T0000Z-211229T1000Z/
Southern Lake-Southern Cook-
Including the cities of Two Harbors, Silver Bay, and Grand Marais
759 PM CST Tue Dec 28 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM CST
WEDNESDAY...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches.

* WHERE...Southern Cook and Southern Lake Counties. This 
  includes the Tribal Lands of the Grand Portage Reservation.

* WHEN...Until 4 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ025-026-035-291400-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
/O.CON.KDLH.WC.Y.0015.211229T0600Z-211229T1700Z/
North Cass-South Itasca-Northern Aitkin-
Including the cities of Walker, Grand Rapids, and Hill City
759 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
11 AM CST WEDNESDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations of up to one inch. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 30 below 
  zero.

* WHERE...Northern Aitkin, South Itasca and North Cass Counties. 
  This includes the Tribal Lands of the Mille Lacs Band, Big 
  Sandy Lake area.

* WHEN...For the Winter Weather Advisory, until midnight CST 
  tonight. For the Wind Chill Advisory, from midnight tonight to 
  11 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning commute. The dangerously 
  cold wind chills could cause frostbite on exposed skin in as 
  little as 10 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ011-019-037-038-WIZ001-006-290600-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
North St. Louis-Central St. Louis-Carlton and South St. Louis-
Pine-Douglas-Burnett-
Including the cities of Ely, Hibbing, Duluth, Pine City, 
Hinckley, Superior, and Grantsburg
759 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to two inches.

* WHERE...In Wisconsin, Burnett and Douglas Counties. In 
  Minnesota, Pine, Carlton and South St. Louis, Central St. 
  Louis and North St. Louis Counties. This includes the Tribal 
  Lands of the Fond du Lac Band, the Mille Lacs Band, Lena Lake 
  and, Hinckley areas and the Bois Forte Band, Lake Vermilion 
  and, Nett Lake areas.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ012-291000-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T1000Z/
Northern Cook and Lake-
Including the city of Isabella
759 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches.

* WHERE...Northern Cook and Lake County.

* WHEN...Until 4 AM CST Wednesday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

WIZ002-007>009-290600-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
Bayfield-Washburn-Sawyer-Price-
Including the cities of Washburn, Bayfield, Spooner, Hayward, 
and Phillips
759 PM CST Tue Dec 28 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to one inch.

* WHERE...Sawyer, Washburn, Bayfield and Price Counties. This 
  includes the Tribal Lands of the Red Cliff Band and the Lac 
  Courte Oreilles Reservation.

* WHEN...Until midnight CST tonight.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
188 
WWUS43 KDLH 290601
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
1201 AM CST Wed Dec 29 2021

MNZ010-018-291700-
/O.EXP.KDLH.WS.W.0010.000000T0000Z-211229T0600Z/
/O.CON.KDLH.WC.Y.0015.000000T0000Z-211229T1700Z/
Koochiching-North Itasca-
Including the cities of International Falls and Bigfork
1201 AM CST Wed Dec 29 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST THIS
MORNING...
...WINTER STORM WARNING HAS EXPIRED...

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

* WHERE...North Itasca and Koochiching Counties. This includes 
  the Tribal Lands of the Bois Forte Band, Deer Creek and, Nett 
  Lake areas.

* WHEN...Until 11 AM CST this morning.

* 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. 

&&

$$

MNZ025-026-035-291700-
/O.EXP.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
/O.CON.KDLH.WC.Y.0015.000000T0000Z-211229T1700Z/
North Cass-South Itasca-Northern Aitkin-
Including the cities of Walker, Grand Rapids, and Hill City
1201 AM CST Wed Dec 29 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST THIS
MORNING...
...WINTER WEATHER ADVISORY HAS EXPIRED...

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

* WHERE...Northern Aitkin, South Itasca and North Cass Counties. 
  This includes the Tribal Lands of the Mille Lacs Band, Big 
  Sandy Lake area.

* WHEN...Until 11 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. 

&&

$$

MNZ011-019-037-038-WIZ001-002-006>009-290715-
/O.EXP.KDLH.WW.Y.0026.000000T0000Z-211229T0600Z/
North St. Louis-Central St. Louis-Carlton and South St. Louis-
Pine-Douglas-Bayfield-Burnett-Washburn-Sawyer-Price-
Including the cities of Ely, Hibbing, Duluth, Pine City, 
Hinckley, Superior, Washburn, Bayfield, Grantsburg, Spooner, 
Hayward, and Phillips
1201 AM CST Wed Dec 29 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Accumulating snowfall has ended and the advisory will be allowed
to expire.

$$

MNZ020-021-291000-
/O.CON.KDLH.WS.W.0010.000000T0000Z-211229T1000Z/
Southern Lake-Southern Cook-
Including the cities of Two Harbors, Silver Bay, and Grand Marais
1201 AM CST Wed Dec 29 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM CST EARLY
THIS MORNING...

* WHAT...Heavy snow. Additional snow accumulations of up to two 
  inches.

* WHERE...Southern Cook and Southern Lake Counties. This 
  includes the Tribal Lands of the Grand Portage Reservation.

* WHEN...Until 4 AM CST early this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ012-291000-
/O.CON.KDLH.WW.Y.0026.000000T0000Z-211229T1000Z/
Northern Cook and Lake-
Including the city of Isabella
1201 AM CST Wed Dec 29 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST EARLY
THIS MORNING...

* WHAT...Snow. Additional snow accumulations of up to one inch.

* WHERE...Northern Cook and Lake County.

* WHEN...Until 4 AM CST early this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1. 
Road conditions can also be found at 511mn.org for Minnesota or
511wi.gov for Wisconsin.

&&

$$

MNZ033-034-036-291700-
/O.CON.KDLH.WC.Y.0015.000000T0000Z-211229T1700Z/
South Cass-Crow Wing-South Aitkin-
Including the cities of Pine River, Brainerd, and Aitkin
1201 AM CST Wed Dec 29 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST THIS
MORNING...

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

* WHERE...Crow Wing, South Cass and South Aitkin Counties. This 
  includes the Tribal Lands of the Mille Lacs Band, East Lake 
  area.

* WHEN...Until 11 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. 

&&

$$

BJH

For more information from the National Weather Service visit
http://weather.gov/Duluth
958 
WWUS43 KDLH 291002
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
402 AM CST Wed Dec 29 2021

MNZ020-021-291115-
/O.EXP.KDLH.WS.W.0010.000000T0000Z-211229T1000Z/
Southern Lake-Southern Cook-
Including the cities of Two Harbors, Silver Bay, and Grand Marais
402 AM CST Wed Dec 29 2021

...WINTER STORM WARNING HAS EXPIRED...

Snowfall has ended and the warning has been allowed to expire.

$$

MNZ012-291115-
/O.EXP.KDLH.WW.Y.0026.000000T0000Z-211229T1000Z/
Northern Cook and Lake-
Including the city of Isabella
402 AM CST Wed Dec 29 2021

...WINTER WEATHER ADVISORY HAS EXPIRED...

Snowfall has ended and the advisory has been allowed to expire.

$$

MNZ010-018-025-026-033>036-291700-
/O.CON.KDLH.WC.Y.0015.000000T0000Z-211229T1700Z/
Koochiching-North Itasca-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-
Including the cities of International Falls, Bigfork, Walker, 
Grand Rapids, Pine River, Brainerd, Hill City, and Aitkin
402 AM CST Wed Dec 29 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM CST THIS
MORNING...

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

* WHERE...North Itasca, South Cass, Crow Wing, Northern Aitkin, 
  Koochiching, South Itasca, North Cass and South Aitkin 
  Counties. This includes the Tribal Lands of the Mille Lacs 
  Band, East Lake and, Big Sandy Lake areas and the Bois Forte 
  Band, Deer Creek and, Nett Lake areas.

* WHEN...Until 11 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. 

&&

$$

BJH

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

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 Duluth, MN wrote its last area forecast discussion before this wind chill advisory went out at Dec 28, 11:40 AM CST, 3 hours earlier.

Area forecast discussion, Dec 28, 11:40 AM CST, 3 hours before
Area Forecast Discussion
National Weather Service Duluth MN
1140 AM CST Tue Dec 28 2021

.DISCUSSION...(Today through Monday)
Issued at 504 AM CST Tue Dec 28 2021

Summary: Another round of snow will move through today into
tonight with very cold temperatures to follow behind the system.
Another chance for snow to end the week before quieting down for
the weekend and remaining cold.

High pressure stretched from the southern Canadian Prairies into
northern Minnesota, Wisconsin and the Ohio Valley. Developing low
pressure was observed over the central High Plains with a weak
frontal boundary extending into Minnesota. A strong upper jet on
the order of 175 knots was centered from southern Minnesota across
Wisconsin to points further east. A trough was digging across the
Rockies and was leading to surface cyclogenesis over eastern
Colorado/western Kansas. This low will move east today with an
inverted trough/ upper level shortwave moving across the Upper
Midwest. Another area of low pressure will develop along this
trough late today near northeastern Minnesota.

This low moving across the Central Plains will spread snow showers
from southwest to northeast this morning and into this afternoon
across the Northland. Dry air near the surface will delay the
start of snowfall despite radar returns overhead. Snow will
continue through the day before tapering off this evening for
most. Overall, the system is less dynamic than the one we are
still cleaning up from and it features less moisture. With the
track of the low to our south, southeasterly winds will lead to
lake-enhancement once again along the North Shore. Snowfall rates
of 1 to 2 inches per hour will be possible late this afternoon
and evening when the strongest forcing moves through. Once snow
along the North Shore tapers off during the early morning hours,
another 4 to 7 inches is expected with locally higher amounts
along the ridgeline. The remainder of northeastern Minnesota will
see around 2 to 5 inches of accumulation with 1 to 2 inches across
northwest Wisconsin. Winter Storm Warnings remain in effect for
the North Shore zones with Winter Weather Advisories over the
remainder of northeastern Minnesota and much of northwest
Wisconsin. Snowfall totals across northwest Wisconsin have come
down with this update, but will keep the inherited advisory across
the area.

Very cold air will arrive behind this system tonight and wind
chills may drop to as low as -20 to -30 across our western zones
in the hours around sunrise Wednesday morning. A Wind Chill
Advisory may be needed, but will leave this decision to later
shifts so as not to conflict with the Winter Weather Advisory
already out. Another shot of light snow will be possible in the
Thursday timeframe before another reinforcing push of cold air
arrives for the weekend. Highs Saturday will struggle to reach
zero across northeastern Minnesota with single digits and teens
above zero across northwest Wisconsin. Lows Sunday morning will be
in the teens and 20s below zero with dangerous wind chills
possible as well.

&&

.AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon)
Issued at 1138 AM CST Tue Dec 28 2021

Another round of snow showers will be working their way across the
region again today. Radar and satellite already indicate some snow
moving through the BRD region and across northern MN. Further
upstream there are reports of VLIFR visibilities with higher snowfall
rates inbound for BRD. This system will continue to rotate across
the region today with BRD/HIB/DLH/INL likely receiving 3-5 inches.
Snow also expected in NW WI but recent model runs are bringing
slightly lower totals for that region. The system will move out of
the region around midnight and ceilings will eventually improve to
VFR by tomorrow morning for most the region.

&&

.MARINE...
Issued at 504 AM CST Tue Dec 28 2021

Southwesterly winds around 10 to 20 knots around sunrise this
morning will quickly become light and variable by mid-morning
before turning easterly by late morning and increasing to 5 to 15
knots with gusts to 20 to 25 knots. As these winds persist into
tonight, waves will build along the North Shore to 2 to 5 feet
from Silver Bay to Grand Portage and conditions may be hazardous
to small craft. As a low pressure system moves through tonight,
winds turn westerly and increase to 10 to 20 knots with gusts to
25 knots for the overnight hours and for much of the day
Wednesday.Winds then diminish Wednesday night to 5 to 10 knots.
Snow this afternoon and into this evening may lead to reduced
visibility, especially along the North Shore zones.

&&

.PRELIMINARY POINT TEMPS/POPS...
DLH  23  -4   9  -4 /  80  80   0   0
INL  16 -12   2 -14 /  80  80   0   0
BRD  17 -16   4  -8 / 100  60   0   0
HYR  25  -2  13  -4 / 100  80   0   0
ASX  26   5  17   0 /  70  80   0   0

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
WI...Winter Weather Advisory until midnight CST tonight for WIZ001-
     006.

     Winter Weather Advisory until midnight CST tonight for WIZ002-
     007>009.

MN...Winter Weather Advisory until midnight CST tonight for MNZ010-
     011-018-019-025-026-033>038.

     Winter Weather Advisory until 4 AM CST Wednesday for MNZ012.

     Winter Storm Warning until 4 AM CST Wednesday for MNZ020-021.

LS...None.
&&

DISCUSSION...BJH
AVIATION...Britt
MARINE...BJH
Hazardous weather outlook, Dec 28, 5:05 AM CST, 9 hours 35 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
505 AM CST Tue Dec 28 2021

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-291115-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
505 AM CST Tue Dec 28 2021

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Today and Tonight

Accumulating snow is expected today into tonight across the
region. Accumulations will be highest along the North Shore, with
amounts ranging from 5 to 7 inches. Locally higher amounts are
possible. Elsewhere, accumulations will range from 2 to 6 inches.
Use caution when traveling today as roads may be slippery. Winter
Storm Warnings and Winter Weather Advisories remain in effect
today into tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Cold temperatures are expected on Wednesday morning as well as
this weekend. Wind chills below negative 25 degrees will be
possible for large portions of the area. Wind Chill Advisories
may be needed.

.SPOTTER INFORMATION STATEMENT...

Snow spotters are requested to report their snowfall measurements
to the National Weather Service.

LSZ121-140>148-150-291115-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
505 AM CST Tue Dec 28 2021

This Hazardous Weather Outlook is for portions of Lake Superior
and the Nearshore waters of western Lake Superior.

.DAY ONE...Today and Tonight

Gusty east to southeast winds shifting to the west will be
possible late this afternoon and overnight, particularly along
the North Shore and around the outer Apostle Islands. In addition,
higher waves may also build tonight. Conditions may become
hazardous to smaller vessels.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Gusty west winds early Wednesday morning may lead to hazardous conditions
for smaller vessels along the North Shore and around the outer
Apostle Islands.

Unruh

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)

In the hours before

Local storm report, Dec 28, 9:46 AM CST, 4 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
946 AM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0545 PM     SNOW             3 SW LITTLE PINE        46.72N 93.90W
12/27/2021  E11.0 INCH       CROW WING          MN   PUBLIC

&&

WOLFE
Local storm report, Dec 28, 10:13 AM CST, 4 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1013 AM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 AM     SNOW             2 NNE LITTLE ROUND LAKE 46.00N 91.35W
12/28/2021  E12.0 INCH       SAWYER             WI   PUBLIC

&&

WOLFE
Local storm report, Dec 28, 11:56 AM CST, 2 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1156 AM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 AM     SNOW             6 N KNIFE RIVER         47.03N 91.80W
12/28/2021  E14.5 INCH       ST. LOUIS          MN   PUBLIC

&&

WOLFE
Local storm report, Dec 28, 12:57 PM CST, 1 hour 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1257 PM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1257 PM     SNOW             1 NW MOTLEY             46.35N 94.65W
12/28/2021  M3.5 INCH        CASS               MN   TRAINED SPOTTER

&&

WOLFE
Local storm report, Dec 28, 1:47 PM CST, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
147 PM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0146 PM     SNOW             6 WNW LAKE SHORE        46.53N 94.48W
12/28/2021  M4.0 INCH        CASS               MN   PUBLIC

&&
Local storm report, Dec 28, 2:32 PM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
232 PM CST TUE DEC 28 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     SNOW             FEDERAL DAM             47.24N 94.22W
12/28/2021  M3.0 INCH        CASS               MN   TRAINED SPOTTER

&&

WOLFE

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 27, 10:14 PM CSTSmall Craft AdvisoryDLH4 hr
Dec 28, 3:35 PM CSTSmall Craft AdvisoryDLH26 hr

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.