Event Summaries

Thunderstorms & Tornadoes

2023

2022

• June 15: Severe Weather & Tornado Outbreak
• April 12: Early Spring Hail Storm Pummels East Central Wisconsin

2021

• December 15-16: Severe Weather / Wind / Record Temperatures
• September 7: An Early Morning Late Season Large Hail Event
• August 10: EF-1 Outagamie County Tornado
• August 8: EF-1 Coloma Tornado
• July 28: Severe Storms and Tornado
• July 14-15: Flooding and Severe Weather

2020

• August 9: Tornado Hits Vilas County Near Star Lake
• June 20: Three tornadoes hit Winnebago County
• June 2: Severe Storms Hit Central and East-Central Wisconsin

2019

• August 7: Tornado Hits Green Bay
• July 20: Severe Storms and Tornadoes Hit East-Central Wisconsin
• July 19: Large Blowdown Across Northern Wisconsin

2018

• August 28: Severe Storms and Tornado Hit East-Central Wisconsin
• July 1: Severe Storms Hit Northeast Wisconsin

2017

• July 12: Weak Tornado Hits Portage County
• June 14: Tornadoes and Severe Thunderstorms Across Central and East-Central Wisconsin
• June 11: Severe Storms and Heavy Rain
• May 16: Tornado West of Pelican Lake; Severe Storms Hit Central and North-Central Wisconsin
• April 10: Tornado Near Wausau; Severe Storms Hit Central and North-Central Wisconsin

2016

• August 20: Tornado Hits West Side of Kewaunee
• August 4: Tornado in Western Marathon County
• July 21: Squall Line Produces Widespread Damaging Winds Across Area
• June 25-26: Severe Thunderstorms, Weak Tornado in Northeast Wisconsin
• June 10: Severe Thunderstorms Across Central and Northeast Wisconsin
• June 5: Severe Thunderstorms in Central and East-Central Wisconsin
• June 4: Weak Tornado on Loon Lake in Shawano County

2015

• August 14: Severe Thunderstorms in East-Central Wisconsin
• August 2: Severe Storms Produce Baseball Size Hail in Northeast Wisconsin
• July 6: Weak Tornadoes Hit East-Central Wisconsin

2014

2013

• August 7: Early AM Severe Thunderstorm and Tornado Outbreak

2012

2011

• September 2: Thunderstorm Downburst Slams Fox Valley
• August 19: Tornado Kills Person in Wausaukee
• April 10: Record April Tornado Outbreak

2010

2009

2008

2007

• June 7: Northeast Wisconsin Tornado Outbreak

2006

• July 1: Hailstorms Over Northeast Wisconsin

2005

2004

• June 23: Tornadoes Over Central Wisconsin and the Fox Cities
• June 13: Shelf Cloud Over Green Bay and Fox Cities

2003

2002

• September 2: Labor Day Tornadoes

2001

• June 11: Severe Thunderstorms in Central and East-Central Wisconsin

2000

• May 12: Severe Hail and Wind Storm Over Central and East-Central Wisconsin

Historic

• August 23, 1998: Door County Tornado
• July 5, 1994: Cooperstown Tornado
• April 27, 1984: Killer Tornado Outbreak
• July 4, 1977: Independence Day Downbursts Across Northern Wisconsin
• December 1, 1970: Rare December Tornado Outbreak in East-Central Wisconsin

Flooding

The following summaries cover "significant" or widespread flooding. River and flash flooding can be found in these summaries. If the flooding event accompanied severe thunderstorms or tornado outbreaks, it will likely be included in that event's summary under the "Thunderstorms / Tornadoes" section. These events tend to more "rare" compared to others, and have not been separated into yearly sections.

• May 17-19, 2020: Heavy Rain and Flooding across Northeast Wisconsin
• March 16, 2016: Heavy Rain Produces Flooding in Central Wisconsin
• December 14, 2015: Heavy Rain and Flooding in Central and East-Central Wisconsin
• September 23, 2010: Central Wisconsin Flood

Winter Storms

2023

• March 25: Heavy Snow Event
• March 12-13: Heavy Snow Event
• February 22-23: Winter Storm

2022

• February 18: Strong Winds, Accumulating Snow, and Snow Squalls

2021

• December 10-11: Winter Storm
• February 4-5: Winter Storm

2020

• April 12-13: Winter Storm

2019

• November 30-December 1: Second major Winter Storm within a week strikes the region
• November 26-27: First Significant Winter Storm of the season strikes just before Thanksgiving
• February 23-24: Blizzard, High Winds, Freezing Rain Slams Central and Northeast Wisconsin
• February 12: Large Area of Heavy Snow Blankets Wisconsin

2018

• April 13-15: Historic April Blizzard Hits Central and Northeast Wisconsin

2017

2016

2015

• December 28-29: Powerful Winter Storm Hits Central and Eastern Wisconsin

2014

2013

2012

• February 28-29: Leap Year Winter Storm

2011

• March 22-23: Late-Winter Storm Hits Northeast Wisconsin
• January 31-February 1: Lake Effect Snow and Blizzard in East-Central Wisconsin

2010

• December 11-12: Blizzard Affects Central and Northeast Wisconsin

2009

• December 8-9: One of the Biggest Winter Storms in Years Hits Wisconsin

Historic

• May 29, 1947: Memorial Day Snowstorm in Wisconsin
• March 1-2, 1888: Green Bay's Biggest Snowstorm

Extreme Heat & Cold

The following summaries cover "significant" or widespread high heat or extreme cold. Dangerous wind chills and life threatening heat indices can be found in these summaries. If the extreme temperatures were associated with a summer or winter storm, it may be found under the "Thunderstorms & Tornadoes" or "Winter" sections. These events tend to more "rare" compared to others, and have not been separated into yearly sections. 

• The Ice Bowl: December 31, 1967

Other Events

The following summaries cover events that don't fall under the other categories - such as high wind events (not associated with thunderstorms). Other atmospheric events, such as auroras, may be found here.

• Remnants of Tropical Storm Cristobal track through Wisconsin: Record low June surface pressure set - June 9, 2020
• Record Low Extratropical Cyclone: October 26-27, 2010
• Roost Ring on Green Bay: Watch birds leave Green Island - August 11, 2010
• Lake Fly Hatch on Lake Winnebago: May 8, 2009
• Roost Ring on Green Bay: Watch birds leave Green island - August 10, 2006
• Hole Punch Clouds over Central Wisconsin: November 15, 2006