Alert archive / Wisconsin / Wind Chill Advisories in 2021

Wind Chill Advisory 9, NWS Green Bay, WI

February 15, 202112 counties in Wisconsin

NWS Green Bay, WI issued this wind chill advisory at Feb 15, 2021, 12:30 PM CST for 12 counties in Wisconsin. It took effect at Feb 15, 2021, 6:00 PM CST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Feb 15, 2021, 12:30 PM CST (18:30 UTC)
In effect from
Feb 15, 2021, 6:00 PM CST
Expired
Feb 16, 2021, 9:47 AM CST
In force
16 hr
Issued by
NWS Green Bay, WI

Counties Florence County, WI, Forest County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Portage County, WI, Vilas County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 115 km from the middle of the area, began a volume at 18:29 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, 6.5 hours before the alert went out and 117 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 2021-02-15Temperature 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 2021-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -79 square meters per square second.1939587897117136Sfc1 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
1194 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
-79 m²/s²
0-3 km storm-relative helicity
-34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

796 
WWUS43 KGRB 151830
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1230 PM CST Mon Feb 15 2021

...WIND CHILL READINGS IMPROVING THIS AFTERNOON...

.Wind chill readings improving this morning across the area, but
bitter cold chill readings will return later tonight across
portions of central and north-central Wisconsin.

WIZ005-010>012-018-019-030-035-036-160230-
/O.NEW.KGRB.WC.Y.0009.210216T0000Z-210216T1600Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Marathon-Wood-
Portage-
Including the cities of Eagle River, Lac Du Flambeau, 
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, 
Merrill, Tomahawk, Antigo, Wausau, Marshfield, Wisconsin Rapids, 
Stevens Point, and Plover
1230 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM
CST TUESDAY...

* WHAT...Very cold wind chills expected. Wind chills of 20 below
  to 30 below zero.

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

* WHEN...From 6 PM this evening to 10 AM CST Tuesday.

* IMPACTS...The dangerously cold wind chills could cause frostbite
  on exposed skin in as little as 20 to 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ050-160230-
/O.CON.KGRB.WW.Y.0005.210216T0000Z-210216T1800Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
1230 PM CST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations 1 to 2 inches
  inland and 2 to 4 inches locally higher amounts along the
  immediate lakeshore. 

* WHERE...Manitowoc County.

* WHEN...From 6 PM this evening to Noon CST Tuesday.

* IMPACTS...Roads may become snow covered and slippery tonight 
  along with lower visibilities along the Lake Michigan 
  shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and allow extra time to reach your destination tonight.

&&

$$
Eckberg
4 follow-up statements
733 
WWUS43 KGRB 152045
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
245 PM CST Mon Feb 15 2021

...BITTER COLD WIND CHILL READINGS EXPECTED TONIGHT...

.Another night of bitter cold wind chill readings are expected
tonight into Tuesday morning. 

WIZ013-020-021-160445-
/O.EXA.KGRB.WC.Y.0009.210216T0000Z-210216T1600Z/
Northern Marinette County-Menominee-Northern Oconto County-
Including the cities of Niagara, Wausaukee, Keshena, Neopit, 
Mountain, Lakewood, and Townsend
245 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 10 AM
CST TUESDAY...

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

* WHERE...Northern Marinette County, Menominee and Northern 
  Oconto County Counties.

* WHEN...From 6 PM this evening to 10 AM CST Tuesday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 20 to 30 minutes.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ050-160445-
/O.CON.KGRB.WW.Y.0005.210216T0000Z-210216T1800Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
245 PM CST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations 1 to 2 inches
  inland and 2 to 4 inches with locally higher amounts along the
  shoreline. 

* WHERE...Manitowoc County.

* WHEN...From 6 PM this evening to Noon CST Tuesday.

* IMPACTS...Roads may become snow covered and slippery tonight 
  along with lower visibilities along the Lake Michigan 
  shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and allow extra time to reach your destination tonight.

&&

$$

WIZ005-010>012-018-019-030-035-036-160445-
/O.CON.KGRB.WC.Y.0009.210216T0000Z-210216T1600Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Marathon-Wood-
Portage-
Including the cities of Eagle River, Lac Du Flambeau, 
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, 
Merrill, Tomahawk, Antigo, Wausau, Marshfield, Wisconsin Rapids, 
Stevens Point, and Plover
245 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 10 AM CST TUESDAY...

* WHAT...Very cold wind chills expected. Wind chills of 20 below 
  to 30 below zero.

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

* WHEN...From 6 PM this evening to 10 AM CST Tuesday.

* IMPACTS...The dangerously cold wind chills could cause 
  frostbite on exposed skin in as little as 20 to 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
805 
WWUS43 KGRB 160345
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
945 PM CST Mon Feb 15 2021

...BITTER COLD WIND CHILL READINGS EXPECTED INTO TUESDAY MORNING...

.Another night of bitter cold wind chill readings are expected
tonight into Tuesday morning.

WIZ050-161200-
/O.CON.KGRB.WW.Y.0005.000000T0000Z-210216T1800Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
945 PM CST Mon Feb 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Snow expected. Total snow accumulations 1 to 2 inches
  inland and 2 to 4 inches closer to the shoreline. Localized
  higher amounts are possible directly along the shoreline, 
  around Two Rivers up to near Point Beach State Park.

* WHERE...Manitowoc County.

* WHEN...Until noon CST Tuesday.

* IMPACTS...Roads may become snow covered and slippery tonight
  along with lower visibilities along the Lake Michigan shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and allow extra time to reach your destination tonight.

&&

$$

WIZ005-010>013-018>021-030-035-036-161200-
/O.CON.KGRB.WC.Y.0009.000000T0000Z-210216T1600Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Wood-Portage-
Including the cities of Eagle River, Lac Du Flambeau, 
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, 
Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Wausau, Marshfield, 
Wisconsin Rapids, Stevens Point, and Plover
945 PM CST Mon Feb 15 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST
TUESDAY...

* WHAT...Very cold wind chills expected. Wind chills of 20 below 
  to 30 below zero.

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

* WHEN...Until 10 AM CST Tuesday.

* IMPACTS...The dangerously cold wind chills could cause frostbite
  on exposed skin in as little as 20 to 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
898 
WWUS43 KGRB 160937
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
337 AM CST Tue Feb 16 2021

...BITTER COLD WIND CHILL READINGS EXPECTED THIS MORNING...
...LAKE EFFECT SNOW WILL CONTINUE ACROSS MANITOWOC COUNTY THIS
MORNING...

.Bitter cold wind chill readings are expected this morning. Lake
effect snow is expected across Manitowoc County this morning as
north winds of 15 to 25 mph cause blowing and drifting snow. An
additional 1 to 2 inches of snow is expected this morning.

WIZ050-161745-
/O.CON.KGRB.WW.Y.0005.000000T0000Z-210216T1800Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
337 AM CST Tue Feb 16 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

* WHAT...Lake effect snow. Additional snow accumulations of 1 to 2
  inches. Localized higher amounts are possible directly along the
  shoreline, around Two Rivers up to near Point Beach State Park.
  Gusty north winds of 15 to 25 mph may cause blowing and drifting
  snow.

* WHERE...Manitowoc County.

* WHEN...Until noon CST.

* IMPACTS...Roads may become snow covered and slippery this
  morning along with lower visibilities along the Lake Michigan 
  shoreline.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and allow extra time to reach your destination this
morning.

&&

$$

WIZ005-010>013-018>021-030-035-036-161600-
/O.CON.KGRB.WC.Y.0009.000000T0000Z-210216T1600Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Wood-Portage-
Including the cities of Eagle River, Lac Du Flambeau, 
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, 
Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Wausau, Marshfield, 
Wisconsin Rapids, Stevens Point, and Plover
337 AM CST Tue Feb 16 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS
MORNING...

* WHAT...Very cold wind chills expected. Wind chills of 20 below 
  to 30 below zero.

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

* WHEN...Until 10 AM CST.

* IMPACTS...The dangerously cold wind chills could cause frostbite
  on exposed skin in as little as 20 to 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Kurimski
553 
WWUS43 KGRB 161547
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
947 AM CST Tue Feb 16 2021

...LAKE EFFECT SNOW TAPERING OFF ACROSS MANITOWOC COUNTY THIS 
MORNING...

.Lake effect snow will taper off across Manitowoc County by
midday, but blustery north winds may cause patchy blowing and 
drifting snow. Additional accumulations of less than an inch are 
anticipated near the shoreline.

WIZ005-010>013-018>021-030-035-036-161700-
/O.CAN.KGRB.WC.Y.0009.000000T0000Z-210216T1600Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Wood-Portage-
Including the cities of Eagle River, Lac Du Flambeau, 
Rhinelander, Crandon, Aurora, Commonwealth, Spread Eagle, 
Niagara, Wausaukee, Merrill, Tomahawk, Antigo, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Wausau, Marshfield, 
Wisconsin Rapids, Stevens Point, and Plover
947 AM CST Tue Feb 16 2021

...WIND CHILL ADVISORY IS CANCELLED...

Temperatures are warming and the threat of dangerous wind chills
has ended.

$$

WIZ050-161800-
/O.CON.KGRB.WW.Y.0005.000000T0000Z-210216T1800Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
947 AM CST Tue Feb 16 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

* WHAT...Snow. Additional snow accumulations of less than one 
  inch. Patchy blowing and drifting snow possible.

* WHERE...Manitowoc County.

* WHEN...Until noon CST.

* IMPACTS...Roads will be snow covered and slippery.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and allow extra time to reach your destination this
morning.

&&

$$
Kieckbusch

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 15, 3:45 AM CSTWinter Weather AdvisoryGRBManitowoc32 hr

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.