Alert archive / Wisconsin / Wind Chill Advisories in 2021

Wind Chill Advisory 6, NWS Green Bay, WI

February 11, 20217 counties in Wisconsin

NWS Green Bay, WI issued this wind chill advisory at Feb 11, 2021, 1:41 PM CST for 7 counties in Wisconsin. It took effect at Feb 12, 2021, 12:00 AM CST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2021, 1:41 PM CST (19:41 UTC)
In effect from
Feb 12, 2021, 12:00 AM CST
Expired
Feb 12, 2021, 12:00 PM CST
In force
12 hr
Issued by
NWS Green Bay, WI

Counties Langlade County, WI, Lincoln County, WI, Marathon County, WI, Oneida County, WI, Portage County, WI, Vilas County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 139 km from the middle of the area, began a volume at 19:44 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.7 hours before the alert went out and 140 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 12:00Z 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 12:00Z on 2021-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
1348 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

521 
WWUS43 KGRB 111941
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
141 PM CST Thu Feb 11 2021

...ANOTHER ROUND OF BITTERLY COLD WIND CHILL READINGS LATE TONIGHT 
AND FRIDAY MORNING...

.,Wind chill readings will fall as low as 25 below zero late tonight 
into Friday morning across portions of central and north central 
Wisconsin.

WIZ005-010-018-019-030-035-036-120345-
/O.NEW.KGRB.WC.Y.0006.210212T0600Z-210212T1800Z/
Vilas-Oneida-Lincoln-Langlade-Marathon-Wood-Portage-
Including the cities of Merrill, Marshfield, Wausau, Rhinelander,
Tomahawk, Antigo, Plover, Stevens Point, Lac Du Flambeau, Eagle
River, and Wisconsin Rapids
141 PM CST Thu Feb 11 2021

...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST 
FRIDAY...

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

* WHERE...Portions of central and north central Wisconsin.

* WHEN...From Midnight tonight to Noon CST Friday.

* IMPACTS...The dangerously 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, visit us at http://www.weather.gov/GreenBay

Eckberg
3 follow-up statements
213 
WWUS43 KGRB 120340
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
940 PM CST Thu Feb 11 2021

...BITTERLY COLD CONDITIONS EXPECTED LATE TONIGHT AND FRIDAY 
MORNING...

.,Although temperatures won't fall very quickly during the late 
evening, they will begin to drop off a little more quickly once the 
snow diminishes and some breaks develop in the clouds late tonight.

WIZ005-010-018-019-030-035-036-121100-
/O.CON.KGRB.WC.Y.0006.210212T0600Z-210212T1800Z/
Vilas-Oneida-Lincoln-Langlade-Marathon-Wood-Portage-
Including the cities of Merrill, Marshfield, Wausau, Rhinelander,
Tomahawk, Antigo, Plover, Stevens Point, Lac Du Flambeau, Eagle
River, and Wisconsin Rapids
940 PM CST Thu Feb 11 2021

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

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

* WHERE...Portions of central and north central Wisconsin.

* WHEN...Until Noon CST Friday.

* IMPACTS...The combination of wind and cold will result in a 
  situation where exposed skin could suffer frostbite in little as 
  30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

For more information, visit us at http://www.weather.gov/GreenBay

JS
827 
WWUS43 KGRB 121032
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
432 AM CST Fri Feb 12 2021

WIZ005-010-018-019-030-035-036-121800-
/O.CON.KGRB.WC.Y.0006.000000T0000Z-210212T1800Z/
Vilas-Oneida-Lincoln-Langlade-Marathon-Wood-Portage-
Including the cities of Merrill, Marshfield, Wausau, Rhinelander,
Tomahawk, Antigo, Plover, Stevens Point, Lac Du Flambeau, Eagle
River, and Wisconsin Rapids
432 AM CST Fri Feb 12 2021

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

* WHAT...Very cold wind chills. Wind chills 20 to 25 below zero.

* WHERE...Portions of central and north central Wisconsin.

* WHEN...Until Noon CST today.

* IMPACTS...The dangerously 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, visit us at http://www.weather.gov/GreenBay

RDM
338 
WWUS43 KGRB 121749
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1149 AM CST Fri Feb 12 2021

WIZ005-010-018-019-030-035-036-121900-
/O.EXP.KGRB.WC.Y.0006.000000T0000Z-210212T1800Z/
Vilas-Oneida-Lincoln-Langlade-Marathon-Wood-Portage-
Including the cities of Merrill, Marshfield, Wausau, Rhinelander,
Tomahawk, Antigo, Plover, Stevens Point, Lac Du Flambeau, Eagle
River, and Wisconsin Rapids
1149 AM CST Fri Feb 12 2021

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

Wind chill readings have improved into the 10 below to 20 below zero 
range late this morning, thus the wind chill advisory will be 
allowed to expire. Another wind chill advisory may be needed again 
late tonight and Saturday morning across portions of central and 
north-central Wisconsin.

$$

For more information, visit us at http://www.weather.gov/GreenBay

Eckberg

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.