Alert archive / Wisconsin / Winter Storm Warnings in 2021

Winter Storm Warning 4, NWS Green Bay, WI

December 9, 202114 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Dec 9, 2021, 2:36 PM CST for 14 counties in Wisconsin. It took effect at Dec 10, 2021, 3:00 PM CST. It was in force for 21 hr. 40 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 9, 2021, 2:36 PM CST (20:36 UTC)
In effect from
Dec 10, 2021, 3:00 PM CST
Expired
Dec 11, 2021, 12:00 PM CST
In force
21 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, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 106 km from the middle of the area, began a volume at 20:40 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.

What was reported inside it

TimeReportWhereRemark
Dec 10, 7:12 PM CSTSNOW 5Merrill, WIVIA SOCIAL MEDIA. MODERATE SNOW CONTINUES.
Dec 10, 7:16 PM CSTSNOW 1S Wisconsin Rapids, WI
Dec 10, 7:20 PM CSTSNOW 31 N Tomahawk, WI
Dec 10, 7:30 PM CSTSNOW 0.8High Falls Reservoir, WIVIA SOCIAL MEDIA.
Dec 10, 7:41 PM CSTSNOW 3.6Rhinelander, WIVIA WJFW TV-12. MODERATE TO HEAVY SNOW CONTINUES. LIGHTNING OBSERVED AT 720 PM.
Dec 10, 7:52 PM CSTSNOW 5Woodboro, WIMODERATE SNOW CONTINUES.
Dec 10, 8:05 PM CSTSNOW 3.5Harshaw, WIMODERATE SNOW CONTINUES.
Dec 10, 8:26 PM CSTSNOW 51 N Tomahawk, WI
Dec 10, 8:30 PM CSTSNOW 32 N Wausau, WI
Dec 10, 8:44 PM CSTSNOW 3Wausau, WIREPORT FROM WSAW TV.
Dec 10, 8:53 PM CSTSNOW 2.3Plover, WI
Dec 10, 9:42 PM CSTSNOW 4.2Wausau, WIVIA WSAW TV-7. LIGHT SNOW CONTINUES.
Dec 10, 10:00 PM CSTHEAVY SNOW 8Irma, WI
Dec 11, 1:03 AM CSTHEAVY SNOW 12Irma, WISTILL SNOWING.
Dec 11, 1:25 AM CSTSNOW 5.54 N Aniwa, WI
Dec 11, 1:25 AM CSTHEAVY SNOW 12Colby, WISTILL SNOWING.
Dec 11, 4:37 AM CSTHEAVY SNOW 6.54 N Iola, WITHUNDERSNOW WAS REPORTED AT 435 AM. OBSERVER REPORTED HEAVY SNOW AT THE TIME OF THE REPORT.
Dec 11, 5:20 AM CSTHEAVY SNOW 11Arbor Vitae, WISTILL SNOWING.
Dec 11, 6:40 AM CSTSNOW 5.8Plover, WI0.72 LIQUID. SNOW WAS MIXED WITH RAIN/SLEET AT TIMES.
Dec 11, 6:40 AM CSTSNOW 14Monico, WI
Dec 11, 6:45 AM CSTSNOW 6Clintonville, WIMODERATE SNOW STILL OCCURRING.
Dec 11, 7:00 AM CSTSNOW 6.37 W Gillett, WI6.25 INCHES AT BERRY LAKE.
Dec 11, 7:35 AM CSTSNOW 9.54 N Iola, WIUPDATED SNOW TOTAL
Dec 11, 7:39 AM CSTSNOW 10.41 Se Hazelhurst, WI
Dec 11, 7:40 AM CSTSNOW 9Manitowish Waters, WI
Dec 11, 7:55 AM CSTSNOW 111 N Tomahawk, WI
Dec 11, 7:56 AM CSTSNOW 101 W Harrison, WI
Dec 11, 8:45 AM CSTSNOW 8.210 E Knowlton, WI
Dec 11, 8:48 AM CSTSNOW 81 Sw Shawano, WI
Dec 11, 8:50 AM CSTSNOW 6.1Clintonville, WI
Dec 11, 8:50 AM CSTSNOW 6.5Antigo, WI
Dec 11, 9:05 AM CSTSNOW 9.5Spread Eagle, WI
Dec 11, 9:15 AM CSTSNOW 13.5Irma, WISTORM TOTAL
Dec 11, 9:35 AM CSTHEAVY SNOW 6.4Plover, WISTORM TOTAL. 0.76 LIQUID, WHICH INCLUDED SOME RAIN, SLEET, AND FREEZING RAIN.
Dec 11, 9:45 AM CSTSNOW 8.5Lake Tomahawk, WI
Dec 11, 9:50 AM CSTSNOW 10.5Iola, WICORNER OF HIGHWAY 49 AND DIVISION ST.
Dec 11, 10:15 AM CSTSNOW 7.8Scandinavia, WI
Dec 11, 10:30 AM CSTSNOW 6.5Clintonville, WISTORM TOTAL. UPDATE FROM EARLIER REPORT.
Dec 11, 10:40 AM CSTSNOW 82 N Wausau, WIPUBLIC REPORT VIA WSAW-TV
Dec 11, 11:24 AM CSTSNOW 9Post Lake, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.6 hours before the alert went out and 108 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 2021-12-09Temperature 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 2021-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 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
953 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

158 
WWUS43 KGRB 092036
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
236 PM CST Thu Dec 9 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION FRIDAY INTO 
SATURDAY MORNING...

.A significant winter storm will bring a swath of heavy snow to much 
of north central, central and northeast Wisconsin from late Friday 
afternoon through Saturday morning. Mixed precipitation from Wautoma 
to Green Bay to Door County will result in less snow accumulation, 
with potential for minor ice accumulations. Strong northwest winds 
on Saturday morning will produce considerable blowing and drifting 
snow.

WIZ005-010>013-018>021-030-031-035>037-073-074-100445-
/O.UPG.KGRB.WS.A.0003.211210T2100Z-211211T1500Z/
/O.NEW.KGRB.WS.W.0004.211210T2100Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
236 PM CST Thu Dec 9 2021

...WINTER STORM WARNING IN EFFECT FROM 3 PM FRIDAY TO NOON CST 
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and 
  12 inches and a light glaze of ice. Winds gusting as high as 35 
  mph and producing considerable blowing and drifting snow late 
  Friday night into Saturday.

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

* WHEN...From 3 PM Friday to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Friday 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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ045-100445-
/O.UPG.KGRB.WS.A.0003.211210T2100Z-211211T1500Z/
/O.NEW.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Waushara-
Including the cities of Redgranite and Wautoma
236 PM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM FRIDAY TO NOON CST 
SATURDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  between 3 and 5 inches and ice accumulations of one tenth of an 
  inch or less. Winds gusting as high as 35 mph.

* WHERE...Waushara County.

* WHEN...From 3 PM Friday to Noon CST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WIZ022-038>040-048-100445-
/O.NEW.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Winnebago-
Including the cities of Green Bay, Menasha, Neenah, Sister Bay,
Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee, Luxemburg, and
Appleton
236 PM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM FRIDAY TO NOON CST 
SATURDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  between 3 and 5 inches and ice accumulations of one tenth of an 
  inch or less. Winds gusting as high as 40 mph.

* WHERE...Winnebago, Brown, Door, Kewaunee and Outagamie Counties.

* WHEN...From 3 PM Friday to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Friday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

Kieckbusch
8 follow-up statements
032 
WWUS43 KGRB 100422
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1022 PM CST Thu Dec 9 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION FRIDAY INTO
SATURDAY MORNING...

.A significant winter storm will bring a swath of heavy snow to
much of north central, central and northeast Wisconsin from late
Friday afternoon through Saturday morning. Mixed precipitation
over the Fox Valley and Lakeshore will result in less snow 
accumulation and a relatively higher chance for minor ice 
accumulations. Strong northwest winds on Saturday morning will 
produce considerable blowing and drifting snow.

WIZ005-010>013-018>021-030-031-035>037-073-074-101300-
/O.CON.KGRB.WS.W.0004.211210T2100Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
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, Shawano, Marshfield, 
Wisconsin Rapids, Stevens Point, Plover, New London, Waupaca, 
Clintonville, Harmony, Peshtigo, Porterfield, Crivitz, 
High Falls Reservoir, Loomis, Middle Inlet, Little Suamico, 
Sobieski, Brookside, Oconto, and Pensaukee
1022 PM CST Thu Dec 9 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM FRIDAY TO
NOON CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 
  and 12 inches and a light glaze of ice. Winds gusting as high 
  as 35 mph and producing considerable blowing and drifting snow 
  late Friday night into Saturday.

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

* WHEN...From 3 PM Friday to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the Friday 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 for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-101300-
/O.CON.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Sturgeon Bay, Fish Creek, Sister Bay, 
Appleton, Green Bay, Kewaunee, Luxemburg, Redgranite, Wautoma, 
Oshkosh, Neenah, and Menasha
1022 PM CST Thu Dec 9 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM FRIDAY TO
NOON CST SATURDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  between 3 and 5 inches and ice accumulations of one tenth of 
  an inch or less. Winds gusting as high as 40 mph.

* WHERE...Winnebago, Brown, Door, Kewaunee and Outagamie 
  Counties.

* WHEN...From 3 PM Friday to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous 
  conditions could impact the Friday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

mpc
703 
WWUS43 KGRB 101055
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
455 AM CST Fri Dec 10 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION THIS AFTERNOON 
INTO SATURDAY MORNING...

WIZ005-010>013-018>021-030-031-035>037-073-074-101900-
/O.CON.KGRB.WS.W.0004.211210T2100Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
455 AM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON 
TO NOON CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 and 12 
  inches. Locally higher totals are possible. A light glaze is also 
  possible. Winds gusting to 30 to 45 mph may produce considerable 
  blowing and drifting snow late tonight into Saturday.

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

* WHEN...From 3 PM this afternoon to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could 
  significantly reduce visibility. The hazardous conditions could 
  impact the Friday 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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-101900-
/O.CON.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
455 AM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS 
AFTERNOON TO NOON CST SATURDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  between 2 and 5 inches and ice accumulations less than a tenth of 
  an inch. Winds gusting 30 to 45 mph may lead to considerable 
  blowing and drifting snow. The snow may transition to a period of 
  rain from late evening into the early overnight hours.

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

* WHEN...From 3 PM this afternoon to Noon CST Saturday.

* IMPACTS...Plan on slippery road conditions. Blowing snow could 
  significantly reduce visibility. The hazardous conditions could 
  impact the Friday evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

Cooley
420 
WWUS43 KGRB 101642
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1042 AM CST Fri Dec 10 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION THIS AFTERNOON 
INTO SATURDAY MORNING...

.A significant winter storm will bring a swath of heavy snow to much 
of north central, central and northeast Wisconsin from late this 
afternoon through Saturday morning. Mixed precipitation from Wautoma 
to Green Bay to Door County will result in less snow accumulation, 
with potential for minor ice accumulations. Strong northwest winds 
on Saturday morning will produce considerable blowing and drifting 
snow.

WIZ005-010>013-018>021-030-031-035>037-073-074-110045-
/O.CON.KGRB.WS.W.0004.211210T2100Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
1042 AM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON 
TO NOON CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 6 and 12 
  inches. Locally higher totals are possible. Mixed precipitation is 
  possible from Waupaca to Oconto and Marinette late this evening 
  and into the overnight hours. Minor accumulations of sleet and 
  freezing rain may occur there. Winds gusting to 30 to 45 mph will 
  produce considerable blowing and drifting snow late tonight into 
  Saturday.

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

* WHEN...From 3 PM this afternoon to Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could 
  significantly reduce visibility on Saturday morning. The hazardous 
  conditions could impact the Friday 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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-110045-
/O.CON.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
1042 AM CST Fri Dec 10 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS 
AFTERNOON TO NOON CST SATURDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  between 3 and 5 inches and ice accumulations around one tenth of 
  an inch. Winds gusting as high as 40 mph on Saturday morning.

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

* WHEN...From 3 PM this afternoon to Noon CST Saturday.

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

* ADDITIONAL DETAILS...Most of the snow accumulation will occur in 
  the early to mid evening, and again Saturday morning. A period of 
  rain or mixed precipitation will occur during most of the late 
  evening and overnight hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

Kieckbusch
752 
WWUS43 KGRB 102022
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
222 PM CST Fri Dec 10 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION THROUGH SATURDAY 
MORNING...

.A significant winter storm will bring a swath of heavy snow to much 
of north central, central and northeast Wisconsin tonight through 
Saturday morning. Mixed precipitation from Wautoma to Green Bay to 
Door County will result in less snow accumulation, with potential 
for minor ice and sleet accumulations. Strong northwest winds on 
Saturday morning will produce considerable blowing and drifting snow.

WIZ005-010>013-018>021-030-031-035>037-073-074-110430-
/O.CON.KGRB.WS.W.0004.211210T2100Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
222 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 and 13 
  inches. Locally higher totals are possible. Mixed precipitation is 
  expected from Waupaca to Oconto and Marinette late this evening 
  and into the overnight hours. Minor accumulations of sleet and 
  freezing rain may occur there. Winds gusting to 30 to 45 mph will 
  produce considerable blowing and drifting snow late tonight into 
  Saturday.

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

* WHEN...Until Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could 
  significantly reduce visibility late tonight into Saturday 
  morning. The hazardous conditions will be ongoing or arrive during 
  the evening commute.

* ADDITIONAL DETAILS...Snowfall rates will likely exceed an inch an 
  hour this evening. In addition, a few thunderstorms may occur, and 
  be accompanied by very heavy snowfall.

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 for 
Wisconsin can be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-110430-
/O.CON.KGRB.WW.Y.0018.211210T2100Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
222 PM CST Fri Dec 10 2021

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

* WHAT...Snow changing to mixed precipitation this evening, then 
  changing back to snow late tonight into early Saturday morning. 
  Total snow accumulations between 3 and 5 inches and ice 
  accumulations around one tenth of an inch. Winds gusting as high 
  as 35 to 45 mph will produce blowing snow Saturday morning.

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

* WHEN...Until Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Snow and blowing snow 
  could significantly reduce visibility Saturday morning. The 
  hazardous conditions will arrive during the evening commute.

* ADDITIONAL DETAILS...Thunderstorms are possible later tonight into 
  Saturday morning. The storms could be accompanied by brief very 
  heavy snowfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for Wisconsin can be obtained by calling 5 1 1.

&&

$$

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

Kieckbusch
567 
WWUS43 KGRB 110329
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
929 PM CST Fri Dec 10 2021

...SIGNIFICANT WINTER STORM WILL IMPACT THE REGION THROUGH SATURDAY 
MORNING...

.A significant winter storm will continue to bring a swath of heavy 
snow to much of north central, central and northeast Wisconsin 
tonight through Saturday morning. Mixed precipitation from Wautoma 
to Green Bay to Door County will result in less snow accumulation, 
with potential for minor ice and sleet accumulations. Strong 
northwest winds on Saturday morning will produce considerable 
blowing and drifting snow.

WIZ005-010>013-018>021-030-031-035>037-073-074-111200-
/O.CON.KGRB.WS.W.0004.000000T0000Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
929 PM CST Fri Dec 10 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 7 and 13 
  inches. Locally higher totals are possible. Mixed precipitation is 
  expected from Waupaca to Oconto and Marinette late this evening 
  and into the overnight hours. Minor accumulations of sleet and 
  freezing rain may occur there. Winds gusting to 30 to 45 mph will 
  produce considerable blowing and drifting snow late tonight into 
  Saturday.

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

* WHEN...Until Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Blowing snow could 
  significantly reduce visibility late tonight into Saturday morning.

* ADDITIONAL DETAILS...Snowfall rates will likely exceed an inch an 
  hour this evening. In addition, a few thunderstorms may occur, and 
  be accompanied by very heavy snowfall.

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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-111200-
/O.CON.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
929 PM CST Fri Dec 10 2021

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

* WHAT...Snow changing to mixed precipitation this evening, then 
  changing back to snow late tonight into early Saturday morning. 
  Total snow accumulations between 3 and 5 inches and ice 
  accumulations around one tenth of an inch. Winds gusting as high 
  as 35 to 45 mph will produce blowing snow Saturday morning.

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

* WHEN...Until Noon CST Saturday.

* IMPACTS...Travel could be very difficult. Snow and blowing snow 
  could significantly reduce visibility Saturday morning.

* ADDITIONAL DETAILS...Thunderstorms are possible late tonight into 
  Saturday morning. The storms could be accompanied by brief very 
  heavy snowfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

KLJ
584 
WWUS43 KGRB 110940
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
340 AM CST Sat Dec 11 2021

...SIGNIFICANT WINTER STORM CONTINUING TO IMPACT THE REGION THIS 
MORNING...

WIZ005-010>013-018>021-030-031-035>037-073-074-111745-
/O.CON.KGRB.WS.W.0004.000000T0000Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
340 AM CST Sat Dec 11 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Heavy Snow and Mixed Precipitation. Additional snow 
  accumulations between 2 and 4 inches. Some sleet and freezing rain 
  may briefly mix with the snow across portions of Waupaca to Oconto 
  and Marinette County early this morning before transitioning to 
  all snow. Winds gusting as high as 30 to 45 mph will lead to 
  blowing and drifting snow.

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

* WHEN...Until Noon CST today.

* IMPACTS...Travel could be very difficult. Blowing snow could 
  significantly reduce visibility through late morning.

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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ049-050-111745-
/O.EXA.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Calumet-Manitowoc-
Including the cities of Brillion, Chilton, Manitowoc, New
Holstein, and Two Rivers
340 AM CST Sat Dec 11 2021

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

* WHAT...Heavy Snow and Mixed precipitation. Additional snow 
  accumulations between 1 and 3 inches. A mix of rain, sleet, 
  freezing rain and snow can be expected through sunrise before 
  transitioning to wet snow. Sleet and freezing rain accumulations 
  are expected to be minor. After the transition to all snow, 
  snowfall rates may reach 1 inch per hour, especially if 
  accompanied by any thunder. Winds gusting as high as 30 to 45 mph 
  may lead to blowing and drifting snow along with reduced 
  visibility.

* WHERE...Calumet and Manitowoc Counties.

* WHEN...Until Noon CST today.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-111745-
/O.CON.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
340 AM CST Sat Dec 11 2021

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

* WHAT...Heavy Snow and Mixed precipitation. Additional snow 
  accumulations between 2 and 5 inches. A mix of rain, sleet, 
  freezing rain and snow can be expected through sunrise before 
  transitioning to very heavy wet snow. Sleet and freezing rain 
  accumulations are expected to lead to a light glaze. After the 
  transition to all snow, snowfall rates may reach 1 to 2 inches per 
  hour, especially if accompanied by any thunder.

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

* WHEN...Until Noon CST today.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

Cooley
211 
WWUS43 KGRB 111548
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
948 AM CST Sat Dec 11 2021

...WINTER STORM SLOWLY ENDING THIS MORNING...

WIZ005-010>013-018>021-030-031-035>037-073-074-111800-
/O.CON.KGRB.WS.W.0004.000000T0000Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
948 AM CST Sat Dec 11 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Light snow ending with blowing and drifting snow. 
  Additional snow accumulations less than one inch. Winds gusting as 
  high as 35 mph.

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

* WHEN...Until Noon CST today.

* IMPACTS...Travel could remain difficult. Blowing snow could reduce 
  visibility through late morning.

* ADDITIONAL DETAILS...Poor travel conditions could linger into the 
  afternoon hours, especially over far northeast Wisconsin.

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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

WIZ022-038>040-045-048-111800-
/O.CON.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Including the cities of Green Bay, Redgranite, Menasha, Neenah,
Sister Bay, Wautoma, Fish Creek, Oshkosh, Sturgeon Bay, Kewaunee,
Luxemburg, and Appleton
948 AM CST Sat Dec 11 2021

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

* WHAT...Light snow ending with blowing and drifting snow. 
  Additional snow accumulations less than one inch. Winds gusting as 
  high as 40 mph.

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

* WHEN...Until Noon CST today.

* IMPACTS...Travel could remain difficult. Blowing snow could reduce 
  visibility through late morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

WIZ049-050-111800-
/O.CON.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Calumet-Manitowoc-
Including the cities of Brillion, Chilton, Manitowoc, New
Holstein, and Two Rivers
948 AM CST Sat Dec 11 2021

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

* WHAT...Light snow ending with blowing and drifting snow. 
  Additional snow accumulations up to one inch. Winds gusting as 
  high as 40 mph.

* WHERE...Calumet and Manitowoc Counties.

* WHEN...Until Noon CST today.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

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

Bersch
678 
WWUS43 KGRB 111746
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1146 AM CST Sat Dec 11 2021

WIZ005-010>013-018>021-030-031-035>037-073-074-111900-
/O.EXP.KGRB.WS.W.0004.000000T0000Z-211211T1800Z/
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Southern Marinette County-Southern Oconto County-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Harmony, High Falls Reservoir, Eagle
River, Crivitz, Clintonville, Townsend, Waupaca, Marshfield,
Lakewood, Wausau, Lac Du Flambeau, Aurora, Oconto, Little
Suamico, Porterfield, Middle Inlet, Loomis, Rhinelander,
Tomahawk, Crandon, Plover, Commonwealth, Peshtigo, Merrill,
Brookside, Wisconsin Rapids, Stevens Point, Shawano, Sobieski,
Niagara, Pensaukee, and Wausaukee
1146 AM CST Sat Dec 11 2021

...WINTER STORM WARNING WILL EXPIRE AT NOON CST TODAY...

Snow has ended across the area and road conditions continue to 
improve. Only minor blowing and drifting snow is expected this 
afternoon.

$$

WIZ022-038>040-045-048>050-111900-
/O.EXP.KGRB.WW.Y.0018.000000T0000Z-211211T1800Z/
Door-Outagamie-Brown-Kewaunee-Waushara-Winnebago-Calumet-
Manitowoc-
Including the cities of Green Bay, Brillion, Redgranite, Menasha,
Neenah, Two Rivers, Sister Bay, Wautoma, Fish Creek, Chilton,
Oshkosh, New Holstein, Sturgeon Bay, Kewaunee, Manitowoc,
Luxemburg, and Appleton
1146 AM CST Sat Dec 11 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON CST TODAY...

Snow has ended across the area and road conditions continue to 
improve. Only minor blowing and drifting snow is expected this 
afternoon.

$$

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

Bersch

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 3:19 AM CSTWinter Storm WatchGRBFlorence, Forest, Langlade, Lincoln, Marathon, Marinette and 9 more11 hr
Dec 9, 2:36 PM CSTWinter Weather AdvisoryGRBBrown, Calumet, Door, Kewaunee, Manitowoc, Outagamie and 2 more45 hr

Nearby

Winter Storm Warnings in Wisconsin, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.