Alert archive / Wisconsin / Wind Chill Advisories in 2021

Wind Chill Advisory 3, NWS Milwaukee, WI

February 10, 202110 counties in Wisconsin

NWS Milwaukee, WI issued this wind chill advisory at Feb 10, 2021, 9:00 PM CST for 10 counties in Wisconsin. It took effect at Feb 11, 2021, 12:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Feb 10, 2021, 9:00 PM CST (03:00 UTC)
In effect from
Feb 11, 2021, 12:00 AM CST
Expired
Feb 11, 2021, 9:00 AM CST
In force
9 hr
Issued by
NWS Milwaukee, WI

Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Lafayette County, WI, Marquette County, WI, Sauk County, WI

The radar

The Milwaukee radar (KMKX), 80 km from the middle of the area, began a volume at 03:00 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.0 hours before the alert went out and 168 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, Green Bay/Straub, WI at 00:00Z on 2021-02-11Temperature 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, Green Bay/Straub, WI at 00:00Z on 2021-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -87 square meters per square second.1939587897117136156Sfc1 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
1283 m above ground
0-6 km bulk shear
100 kt
0-1 km storm-relative helicity
-87 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

622 
WWUS43 KMKX 110300
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
900 PM CST Wed Feb 10 2021

WIZ046-047-051-056>058-062-063-067-068-111500-
/O.NEW.KMKX.WC.Y.0003.210211T0600Z-210211T1500Z/
Marquette-Green Lake-Fond du Lac-Sauk-Columbia-Dodge-Iowa-Dane-
Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Baraboo, 
Reedsburg, Prairie Du Sac, Sauk City, Portage, Columbus, 
Lake Wisconsin, Lodi, Beaver Dam, Waupun, Mayville, Dodgeville, 
Mineral Point, Barneveld, Madison, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, and Brodhead
900 PM CST Wed Feb 10 2021

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

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

* WHERE...Portions of east central, south central and southeast 
  Wisconsin.

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

* 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. 

&&

$$
1 follow-up statement
714 
WWUS43 KMKX 110940
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
340 AM CST Thu Feb 11 2021

WIZ046-047-051-056>058-062-063-067-068-111500-
/O.CON.KMKX.WC.Y.0003.000000T0000Z-210211T1500Z/
Marquette-Green Lake-Fond du Lac-Sauk-Columbia-Dodge-Iowa-Dane-
Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Baraboo, 
Reedsburg, Prairie Du Sac, Sauk City, Portage, Columbus, 
Lake Wisconsin, Lodi, Beaver Dam, Waupun, Mayville, Dodgeville, 
Mineral Point, Barneveld, Madison, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, and Brodhead
340 AM CST Thu Feb 11 2021

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

* WHAT...Very cold wind chills as low as 25 below zero.

* WHERE...Portions of east central, south central and southeast 
  Wisconsin.

* WHEN...Until 9 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.

&&

$$
DDV

Nearby

Wind Chill Advisories in Wisconsin, 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.