Alert archive / Wisconsin / Winter Storm Warnings in 2021

Winter Storm Warning 1, NWS Green Bay, WI

February 3, 202122 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Feb 3, 2021, 2:57 PM CST for 22 counties in Wisconsin. It took effect at Feb 4, 2021, 3:00 AM CST. It was in force for 23 hr. 60 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
Feb 3, 2021, 2:57 PM CST (20:57 UTC)
In effect from
Feb 4, 2021, 3:00 AM CST
Expired
Feb 5, 2021, 2:17 AM CST
In force
23 hr
Issued by
NWS Green Bay, WI
All 22 counties

Brown County, WI, Calumet County, WI, Door County, WI, Florence County, WI, Forest County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 63 km from the middle of the area, began a volume at 21:01 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
Feb 4, 6:00 AM CSTFREEZING RAIN 0.04Wisconsin Rapids, WI6 HOUR ACCUMULATION ENDING AT 6 AM
Feb 4, 6:00 AM CSTFREEZING RAIN 0.06Marshfield, WI6 HOUR ACCUMULATION ENDING AT 6 AM
Feb 4, 6:00 AM CSTFREEZING RAIN 0.08Wausau, WI6 HOUR ACCUMULATION ENDING AT 6 AM
Feb 4, 9:00 AM CSTHEAVY SNOW 10.54 W Sobieski, WIREPORT VIA SOCIAL MEDIA. LOCATED IN NORTH CHASE.
Feb 4, 9:39 AM CSTFREEZING RAIN 0.011 Se Greenville, WI
Feb 4, 9:55 AM CSTSNOW 1.4Rhinelander, WIREPORT RELAYED FROM WJFW-RHINELANDER
Feb 4, 10:25 AM CSTSNOW 1.1Wausau, WIREPORT RELAYED FROM WSAW-WAUSAU
Feb 4, 11:31 AM CSTSNOW 2.2Plover, WI0.25 INCH WATER EQUIVALENT. PRECIPITATION STARTED OUT AS FREEZING RAIN.
Feb 4, 12:06 PM CSTSNOW 2.1Wausau, WIMODERATE SNOW CONTINUES TO FALL. COURTESY OF WSAW-TV.
Feb 4, 12:26 PM CSTSNOW 2Knowlton, WI
Feb 4, 12:30 PM CSTSNOW 2.33 E Rothschild, WI
Feb 4, 1:15 PM CSTSNOW 2.56 Se Fremont, WIHEAVY SNOW CONTINUED. VISIBILITY LESS THAN A QUARTER OF MILE.
Feb 4, 1:15 PM CSTSNOW 34 N Iola, WI
Feb 4, 1:15 PM CSTSNOW 3.5Appleton, WIONE INCH OF SNOW IN THE PAST HOUR.
Feb 4, 1:15 PM CSTSNOW 5.4Rhinelander, WISTILL SNOWING.
Feb 4, 1:17 PM CSTSNOW 4Eagle River, WI
Feb 4, 1:17 PM CSTSNOW 53 N Rhinelander, WIHEAVY SNOW OCCURRING
Feb 4, 1:35 PM CSTSNOW 3.5Seymour, WI
Feb 4, 1:50 PM CSTSNOW 2.5Omro, WISTILL SNOWING.
Feb 4, 2:02 PM CSTSNOW 4.5Marshfield, WI
Feb 4, 2:23 PM CSTSNOW 6.8Rhinelander, WI
Feb 4, 2:35 PM CSTSNOW 2.83 Nw Neenah, WI
Feb 4, 2:38 PM CSTSNOW 4.12 N Wausau, WIREPORT RELAYED FROM WSAW WAUSAU
Feb 4, 3:00 PM CSTSNOW 7.57 S Lake Tomahawk, WIREPORT VIA SOCIAL MEDIA.
Feb 4, 3:22 PM CSTSNOW 83 N Rhinelander, WISTILL SNOWING HEAVILY
Feb 4, 3:30 PM CSTSNOW 5Crandon, WI
Feb 4, 3:44 PM CSTHEAVY SNOW 6Wausau, WIHEAVY SNOW CONTINUED.
Feb 4, 3:45 PM CSTSNOW 3.3Oshkosh, WIREPORT FROM SOCIAL MEDIA. STILL SNOWING.
Feb 4, 3:45 PM CSTSNOW 3.44 E Legend Lake, WITWITTER POST FROM BERRY LAKE.
Feb 4, 4:00 PM CSTSNOW 1.3Bellevue, WIREPORT VIA SOCIAL MEDIA. BEGAN SNOWING AROUND 2 PM.
Feb 4, 4:00 PM CSTSNOW 3Pulcifer, WIREPORT VIA SOCIAL MEDIA. STILL SNOWING.
Feb 4, 4:00 PM CSTSNOW 5Knowlton, WIREPORT VIA TWITTER.
Feb 4, 4:00 PM CSTSNOW 6.5Manitowish Waters, WIREPORT VIA SOCIAL MEDIA.
Feb 4, 4:05 PM CSTSNOW 5.7Plover, WISTILL SNOWING HEAVILY.
Feb 4, 4:05 PM CSTHEAVY SNOW 64 N Iola, WIHEAVY SNOW OCCURRING AT THE TIME OF THE REPORT.
Feb 4, 4:10 PM CSTSNOW 4.8Stevens Point, WIREPORT VIA SOCIAL MEDIA.
Feb 4, 4:10 PM CSTSNOW 5.56 S Weston, WIREPORT IN KRONENWETTER VIA SOCIAL MEDIA.
Feb 4, 4:15 PM CSTSNOW 5Neenah, WI
Feb 4, 4:22 PM CSTSNOW 5Antigo, WIHEAVY SNOW OCCURRING AT THE TIME OF THE REPORT.
Feb 4, 4:30 PM CSTSNOW 5Appleton, WI
Feb 4, 4:34 PM CSTSNOW 6.2Clintonville, WI
Feb 4, 4:40 PM CSTSNOW 62 Se Polonia, WI
Feb 4, 4:42 PM CSTSNOW 3.3Ashwaubenon, WI
Feb 4, 4:44 PM CSTHEAVY SNOW 62 Wnw Mattoon, WI
Feb 4, 4:45 PM CSTSNOW 51 S Shawano, WI
Feb 4, 4:45 PM CSTSNOW 6.1Wausau, WIREPORT VIA WSAW.
Feb 4, 5:00 PM CSTSNOW 53 Nw Neenah, WISTILL SNOWING
Feb 4, 5:00 PM CSTSNOW 6.77 W Merrill, WISTILL STEADY SNOW FALLING
Feb 4, 5:11 PM CSTHEAVY SNOW 6Neenah, WI
Feb 4, 5:15 PM CSTSNOW 5.86 Nw Pulcifer, WIBERRY LAKE
Feb 4, 5:30 PM CSTHEAVY SNOW 8.5Iola, WI
Feb 4, 5:40 PM CSTHEAVY SNOW 6Whiting, WI
Feb 4, 5:40 PM CSTHEAVY SNOW 9Lake Tomahawk, WI
Feb 4, 5:57 PM CSTSNOW 41 N Oshkosh, WI
Feb 4, 5:57 PM CSTSNOW 43 Sw De Pere, WI3 INCHES OF SNOW REPORTED IN ONE HOUR.
Feb 4, 6:00 PM CSTSNOW 3Stockbridge, WI
Feb 4, 6:02 PM CSTSNOW 4.7Ashwaubenon, WI
Feb 4, 6:15 PM CSTSNOW 8.5Irma, WIREPORT VIA FACEBOOK.
Feb 4, 6:20 PM CSTSNOW 7Amherst, WIREPORT VIA FACEBOOK.
Feb 4, 6:20 PM CSTHEAVY SNOW 9Eagle River, WIREPORT VIA SOCIAL MEDIA.

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, 9.0 hours before the alert went out and 65 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 2021-02-03Temperature 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 2021-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939587897Sfc1 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
1585 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

347 
WWUS43 KGRB 032057
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
257 PM CST Wed Feb 3 2021

...A WINTER STORM WILL BRING A WINTRY MIX, SNOW, AND BLOWING SNOW TO 
NORTHEAST WISCONSIN LATE TONIGHT INTO FRIDAY MORNING...

.A strengthening area of low pressure will move from the Central 
Plains tonight to Ontario on Friday. Although precipitation may 
start out as a wintry mix late tonight, precipitation is expected to 
change to moderate or heavy snow on Thursday. Most locations will 
see snow accumulations of 4 to 8 inches by the time the snow tapers 
off late Thursday night. Gusty west winds and considerable blowing 
and drifting snow will cause hazardous travel conditions to linger 
into Friday.

WIZ005-010>012-018>021-030-031-035>038-045-048-040500-
/O.UPG.KGRB.WS.A.0001.210204T0900Z-210205T1500Z/
/O.NEW.KGRB.WS.W.0001.210204T0900Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
257 PM CST Wed Feb 3 2021

...WINTER STORM WARNING IN EFFECT FROM 3 AM THURSDAY TO 9 AM CST 
FRIDAY...

* WHAT...A light mix of snow, sleet, and freezing rain late tonight 
  into early Thursday, then heavy snow into Thursday evening. Total 
  snow accumulations of 5 to 8 inches. A light glaze of ice possible 
  in central Wisconsin late tonight into early Thursday. Winds could 
  gust as high as 35 mph late Thursday night into Friday, causing 
  considerable blowing and drifting snow in open areas.

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

* WHEN...From 3 AM Thursday to 9 AM CST Friday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Thursday morning and evening commutes, and 
  possibly the Friday morning 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.

&&

$$

WIZ013-022-039-040-049-050-073-074-040500-
/O.UPG.KGRB.WS.A.0001.210204T1500Z-210205T1800Z/
/O.NEW.KGRB.WS.W.0001.210204T1500Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
257 PM CST Wed Feb 3 2021

...WINTER STORM WARNING IN EFFECT FROM 9 AM THURSDAY TO NOON CST 
FRIDAY...

* WHAT...Heavy snow possible, especially Thursday afternoon and 
  evening. Total snow accumulations of 4 to 8 inches possible. West 
  winds could gust as high as 35 mph late Thursday night into 
  Friday, causing considerable blowing and drifting snow.

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

* WHEN...From 9 AM Thursday to Noon CST Friday.

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

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.

&&

$$

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

Hykin
6 follow-up statements
945 
WWUS43 KGRB 040436
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1036 PM CST Wed Feb 3 2021

...A WINTER STORM WILL BRING A WINTRY MIX, SNOW, AND BLOWING SNOW TO 
NORTHEAST WISCONSIN LATE TONIGHT INTO FRIDAY MORNING...

.A strengthening area of low pressure will move from the Central 
Plains tonight to Ontario on Friday. Although precipitation may 
start out as a wintry mix late tonight, precipitation is expected to 
change to moderate or heavy snow on Thursday. Most locations will 
see snow accumulations of 4 to 8 inches by the time the snow tapers 
off late Thursday night. Gusty west winds and considerable blowing 
and drifting snow will cause hazardous travel conditions to linger 
into Friday.

WIZ005-010>012-018>021-030-031-035>038-045-048-041300-
/O.CON.KGRB.WS.W.0001.210204T0900Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
1036 PM CST Wed Feb 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM THURSDAY TO 9 AM 
CST FRIDAY...

* WHAT...A light mix of snow, sleet, and freezing rain late tonight 
  into early Thursday, then heavy snow into Thursday evening. Total 
  snow accumulations of 5 to 8 inches. A light glaze of ice possible 
  in central Wisconsin late tonight into early Thursday. Winds could 
  gust as high as 35 mph late Thursday night into Friday, causing 
  considerable blowing and drifting snow in open areas.

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

* WHEN...From 3 AM Thursday to 9 AM CST Friday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Thursday morning and evening commutes, and 
  possibly the Friday morning 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.

&&

$$

WIZ013-022-039-040-049-050-073-074-041300-
/O.CON.KGRB.WS.W.0001.210204T1500Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
1036 PM CST Wed Feb 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THURSDAY TO NOON 
CST FRIDAY...

* WHAT...Heavy snow possible, especially Thursday afternoon and 
  evening. Total snow accumulations of 4 to 8 inches possible. West 
  winds could gust as high as 35 mph late Thursday night into 
  Friday, causing considerable blowing and drifting snow.

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

* WHEN...From 9 AM Thursday to Noon CST Friday.

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

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.

&&

$$

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

Kurimski
704 
WWUS43 KGRB 041023
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
423 AM CST Thu Feb 4 2021

...A WINTER STORM WILL BRING A WINTRY MIX, SNOW, AND BLOWING SNOW TO 
NORTHEAST WISCONSIN TODAY INTO FRIDAY MORNING...

.Low pressure will strengthen over northeast Wisconsin today, then 
lift into Ontario on Friday. A light wintry mix is expected early 
today, followed by moderate or heavy snow overspreading the region 
in the late morning and afternoon. Most locations will see snow 
accumulations of 5 to 8 inches by the time the snow tapers off late 
tonight. Gusty west winds and considerable blowing and drifting snow 
will develop tonight, and cause hazardous travel conditions to 
linger into Friday.

WIZ005-010>012-018>021-030-031-035>038-045-048-041815-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
423 AM CST Thu Feb 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...A light mix of snow, sleet, and freezing rain early this 
  morning, then moderate to heavy snow into this evening. Total snow 
  accumulations of 5 to 8 inches, with the highest totals over 
  northern Wisconsin. A light glaze of ice early this morning. Winds 
  will gust as high as 30 to 40 mph tonight into Friday, causing 
  considerable blowing and drifting snow in open areas, and on north 
  to south oriented roads.

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

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  will impact the Thursday morning and evening commutes.

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.

&&

$$

WIZ013-022-039-040-049-050-073-074-041815-
/O.CON.KGRB.WS.W.0001.210204T1500Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
423 AM CST Thu Feb 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 
NOON CST FRIDAY...

* WHAT...A brief period of light mixed precipitation is possible 
  this morning. Moderate to heavy snow is expected this afternoon 
  into tonight. Total snow accumulations of 4 to 8 inches expected, 
  with the highest amounts in the north. West winds will gust as 
  high as 30 to 40 mph tonight into Friday, causing considerable 
  blowing and drifting snow in open areas, and on north to south 
  oriented roads.

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

* WHEN...From 9 AM this morning to Noon CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  will impact the commutes this evening and Friday 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 
Wisconsin can be obtained by calling 5 1 1.

&&

$$

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

Kieckbusch
952 
WWUS43 KGRB 041556
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
956 AM CST Thu Feb 4 2021

...A WINTER STORM WILL BRING SIGNIFICANT SNOW TO THE REGION TODAY, 
AND SNOW SHOWERS AND BLOWING SNOW TONIGHT THROUGH FRIDAY MORNING...

.Low pressure will strengthen over northeast Wisconsin later today, 
then lift into Ontario Friday. The snow could briefly begin as rain 
or freezing rain in eastern Wisconsin, but should turn quickly to 
snow. Moderate to heavy snow is expected across the entire area this 
afternoon. Travel will become difficult. Most locations will see 
snow accumulations of 5 to 8 inches by the time the snow tapers off 
late tonight. Gusty west winds will produce considerable blowing and 
drifting snow tonight, and cause hazardous travel conditions through 
Friday morning.

WIZ005-010>012-018>021-030-031-035>038-045-048-050000-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
956 AM CST Thu Feb 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Moderate to heavy snow. Additional snow accumulations of 4 
  to 6 inches.  Winds gusting as high as 35 mph tonight producing 
  blowing and drifting snow.

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

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Travel will become very difficult. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Thursday evening and Friday morning commutes.

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.

&&

$$

WIZ013-022-039-040-049-050-073-074-050000-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
956 AM CST Thu Feb 4 2021

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

* WHAT...A mixture of freezing rain and rain will turn quickly to 
  snow and become moderate to heavy at times this afternoon and 
  evening. Snow accumulations of 4 to 6 inches are expected. Winds 
  gusting as high as 40 mph tonight and early Friday will produce 
  blowing and drifting snow.

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

* WHEN...Until Noon CST Friday.

* IMPACTS...Travel will become very difficult this afternoon and 
  evening. Areas of blowing snow could significantly reduce 
  visibility. The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes.

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.

&&

$$

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

RDM
395 
WWUS43 KGRB 042100
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
300 PM CST Thu Feb 4 2021

...A WINTER STORM WILL BRING SIGNIFICANT SNOW TO THE REGION THROUGH 
EARLY EVENING, AND SNOW SHOWERS AND BLOWING SNOW TONIGHT THROUGH 
FRIDAY MORNING...

.Low pressure will strengthen over northeast Wisconsin later today, 
then lift into Canada Friday. Moderate to heavy snow is expected 
across the entire area into the early evening hours, making travel 
difficult. Most locations will see total snow accumulations of 5 to 
8 inches by the time the snow tapers off late tonight. Gusty west 
winds will produce considerable blowing and drifting snow tonight, 
and cause hazardous travel conditions through Friday morning.

WIZ005-010>012-018>021-030-031-035>038-045-048-050500-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
300 PM CST Thu Feb 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 inches. 
  Winds gusting as high as 35 mph.

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

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Thursday evening and Friday morning commutes.

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.

&&

$$

WIZ013-022-039-040-049-050-073-074-050500-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
300 PM CST Thu Feb 4 2021

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

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5 inches. 
  Winds gusting as high as 35 mph.

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

* WHEN...Until Noon CST Friday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow 
  could significantly reduce visibility later tonight. The hazardous 
  conditions could impact the Thursday evening and Friday morning 
  commutes.

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.

&&

$$

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

RDM
622 
WWUS43 KGRB 050339
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
939 PM CST Thu Feb 4 2021

...A WINTER STORM WILL BRING CONTINUED SNOW SHOWERS AND BLOWING SNOW 
THROUGH FRIDAY MORNING...

.The heaviest snow has ended across the region, with 6 to 10 inches 
reported north and west of the Fox Valley. Although the heaviest 
snow has ended, winds gusting to 35 to 40 mph is expected to cause 
blowing and drifting snow. The gusty winds and newly fallen snow 
could cause hazardous travel through Friday morning.

WIZ005-010>012-018>021-030-031-035>038-045-048-051145-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1500Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
939 PM CST Thu Feb 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* WHAT...Light snow and blowing snow. Additional snow accumulations 
  of around one inch. The highest totals will be across 
  north-central Wisconsin. Winds gusting as high as 35 mph could 
  cause blowing and drifting snow.

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

* WHEN...Until 9 AM CST Friday.

* IMPACTS...Travel will be very difficult. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Friday morning commutes.

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.

&&

$$

WIZ013-022-039-040-049-050-073-074-051145-
/O.CON.KGRB.WS.W.0001.000000T0000Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
939 PM CST Thu Feb 4 2021

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

* WHAT...Light snow and blowing snow. Additional snow accumulations 
  of one to two inches. The highest totals will be across northern 
  Door County. Winds gusting as high as 40 mph could cause blowing 
  and drifting snow.

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

* WHEN...Until Noon CST Friday.

* IMPACTS...Travel will be very difficult. Areas of blowing snow 
  could significantly reduce visibility. The hazardous conditions 
  could impact the Friday morning commutes.

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.

&&

$$

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

Kurimski
245 
WWUS43 KGRB 050817
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
217 AM CST Fri Feb 5 2021

...A WINTER STORM WILL BRING BLOWING SNOW THROUGH THIS MORNING...

.A departing low pressure system will continue to produce strong 
west winds this morning, with gusts to 30 to 35 mph. The strong 
winds will produce areas of blowing and drifting snow, especially in 
open rural areas, and on north to south oriented roads. Motorists 
should use caution, as visibilities may be greatly reduced in spots, 
and roads remain snow covered and slippery.

WIZ005-010>012-018>021-030-031-035>038-045-048-051800-
/O.CAN.KGRB.WS.W.0001.000000T0000Z-210205T1500Z/
/O.NEW.KGRB.WW.Y.0004.210205T0817Z-210205T1800Z/
Vilas-Oneida-Forest-Florence-Lincoln-Langlade-Menominee-Northern
Oconto County-Marathon-Shawano-Wood-Portage-Waupaca-Outagamie-
Waushara-Winnebago-
Including the cities of Spread Eagle, New London, Keshena,
Mountain, Antigo, Neopit, Eagle River, Clintonville, Townsend,
Waupaca, Marshfield, Lakewood, Neenah, Wausau, Lac Du Flambeau,
Aurora, Oshkosh, Appleton, Rhinelander, Tomahawk, Crandon,
Plover, Redgranite, Commonwealth, Merrill, Menasha, Wisconsin
Rapids, Stevens Point, Shawano, and Wautoma
217 AM CST Fri Feb 5 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...West winds gusting to 30 to 35 mph, with areas of blowing 
  and drifting snow. Scattered snow showers, with little additional 
  accumulation.

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

* WHEN...Until Noon CST today.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could significantly reduce visibility in open areas, and on north 
  to south oriented roads. The hazardous conditions will impact the 
  morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ013-022-039-040-049-050-073-074-051800-
/O.CAN.KGRB.WS.W.0001.000000T0000Z-210205T1800Z/
/O.NEW.KGRB.WW.Y.0004.210205T0817Z-210205T1800Z/
Northern Marinette County-Door-Brown-Kewaunee-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
Including the cities of Brillion, Loomis, Harmony, Crivitz,
Luxemburg, Manitowoc, Oconto, Little Suamico, Fish Creek,
Chilton, Porterfield, Middle Inlet, Green Bay, Pensaukee,
Brookside, High Falls Reservoir, Peshtigo, Two Rivers, Sister
Bay, Sobieski, Niagara, New Holstein, Sturgeon Bay, Wausaukee,
and Kewaunee
217 AM CST Fri Feb 5 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TODAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...West winds gusting to 30 to 35 mph, with areas of blowing 
  and drifting snow. Scattered snow showers, with little additional 
  accumulation.

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

* WHEN...Until Noon CST today.

* IMPACTS...Plan on slippery road conditions. Areas of blowing snow 
  could significantly reduce visibility, especially in open areas, 
  and on north to south oriented roads. The hazardous conditions 
  will impact the morning commute. Roads, and especially bridges and 
  overpasses, will likely be slick and hazardous.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 4:35 AM CSTSmall Craft AdvisoryGRB3 days

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.