Alert archive / Minnesota / Wind Chill Advisories in 2020

Wind Chill Advisory 9, NWS Twin Cities, MN

December 24, 202042 counties in Minnesota

NWS Twin Cities, MN issued this wind chill advisory at Dec 24, 2020, 2:43 AM CST for 42 counties in Minnesota. It took effect at Dec 24, 2020, 3:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Dec 24, 2020, 2:43 AM CST (08:43 UTC)
In effect from
Dec 24, 2020, 3:00 AM CST
Expired
Dec 24, 2020, 12:00 PM CST
In force
9 hr
Issued by
NWS Twin Cities, MN
All 42 counties

Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 50 km from the middle of the area, began a volume at 08:46 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

Minneapolis, MN (KMPX), launched 00:00Z, 8.7 hours before the alert went out and 47 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, Minneapolis, MN at 00:00Z on 2020-12-24Temperature 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, Minneapolis, MN at 00:00Z on 2020-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 266 square meters per square second.19395878Sfc1 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
708 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

448 
WWUS43 KMPX 240843
WSWMPX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
243 AM CST Thu Dec 24 2020

...VERY COLD WIND CHILLS ARE EXPECTED THIS MORNING ...

.Wind chill values from 25 below to 35 below zero are expected 
across much of central and southern Minnesota, including the Twin 
Cities metro. Snow has tapered off across the area, but impacts 
to travel are expected to remain throughout today. Temperatures
are expected to warm into the single digits with winds decreasing
this afternoon, with wind chills expected to moderate into the  
-teens below zero. 

 
MNZ041>045-047>070-073>078-082>085-091>093-241645-
/O.CAN.KMPX.BZ.W.0003.000000T0000Z-201224T1200Z/
/O.NEW.KMPX.WC.Y.0009.201224T0900Z-201224T1800Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, 
Elk River, Cambridge, Center City, Madison, Benson, Montevideo, 
Willmar, Litchfield, Monticello, Minneapolis, Blaine, St Paul, 
Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, 
Chanhassen, Chaska, Victoria, Shakopee, Hastings, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
243 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...BLIZZARD WARNING IS CANCELLED...

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

* WHERE...Portions of central, east central, south central, 
  southeast, southwest and west central Minnesota.

* WHEN...Until noon CST today.

* 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. 

&&

$$

WIZ014-015-023-024-240945-
/O.CAN.KMPX.WS.W.0008.000000T0000Z-201224T1200Z/
Polk-Barron-St. Croix-Pierce-
Including the cities of Osceola, Rice Lake, Hudson, 
and River Falls
243 AM CST Thu Dec 24 2020

...WINTER STORM WARNING IS CANCELLED...

Snow is tapering off and visibilities have improved overnight.
Travel is expected to remain impacted due to single digit 
temperatures and lingering blowing snow. In addition, light snow 
or flurries may continue through mid-morning.

$$

WIZ016-025>028-240945-
/O.CAN.KMPX.WW.Y.0020.000000T0000Z-201224T1200Z/
Rusk-Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Ladysmith, Menomonie, Durand, 
Chippewa Falls, and Eau Claire
243 AM CST Thu Dec 24 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow is tapering off and visibilities have improved overnight.
Travel is expected to remain impacted due to single digit 
temperatures and lingering blowing snow. In addition, light snow 
or flurries may continue through mid-morning.

$$

BPH
2 follow-up statements
058 
WWUS43 KMPX 241641
WSWMPX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1041 AM CST Thu Dec 24 2020

...VERY COLD WIND CHILLS ARE EXPECTED THIS MORNING ...

.Wind chill values from 25 below to 35 below zero are expected
across much of central and southern Minnesota, including the Twin
Cities metro. Snow has ended, but impacts to travel are expected 
to remain throughout today. Temperatures are expected to warm into
the single digits with winds decreasing this afternoon, with wind
chills expected to moderate into the teens below zero.

MNZ041>045-047>070-073>078-082>085-091>093-241800-
/O.CON.KMPX.WC.Y.0009.000000T0000Z-201224T1800Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, 
Elk River, Cambridge, Center City, Madison, Benson, Montevideo, 
Willmar, Litchfield, Monticello, Minneapolis, Blaine, St Paul, 
Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, 
Chanhassen, Chaska, Victoria, Shakopee, Hastings, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
1041 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

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

* WHERE...Portions of central, east central, south central, 
  southeast, southwest and west central Minnesota.

* WHEN...Until noon CST today.

* 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. 

&&

$$
526 
WWUS43 KMPX 241753
WSWMPX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1153 AM CST Thu Dec 24 2020

MNZ041>045-047>070-073>078-082>085-091>093-241900-
/O.EXP.KMPX.WC.Y.0009.000000T0000Z-201224T1800Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, Morris, Glenwood, St Cloud, Sauk Rapids, 
Elk River, Cambridge, Center City, Madison, Benson, Montevideo, 
Willmar, Litchfield, Monticello, Minneapolis, Blaine, St Paul, 
Stillwater, Granite Falls, Olivia, Hutchinson, Gaylord, 
Chanhassen, Chaska, Victoria, Shakopee, Hastings, Redwood Falls, 
New Ulm, St Peter, Le Sueur, Faribault, Red Wing, St James, 
Mankato, Waseca, Owatonna, Fairmont, Blue Earth, and Albert Lea
1153 AM CST Thu Dec 24 2020

...WIND CHILL ADVISORY WILL EXPIRE AT NOON CST TODAY...

With sunshine and wind chill values warming into the teens and
lower 20s below zero, the wind chill advisory will be allowed to
expire at noon.

$$

Nearby

Wind Chill Advisories in Minnesota, 2020Every wind chill advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.