Thunderstorms developed during the afternoon of June 5th as low pressure moved along a frontal boundary draped across southern Wisconsin. A portion of the frontal boundary followed a southwest to northeast line across Dane and Dodge counties from Lake Mendota in Madison to Juneau.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MKX wrote it up.
Thunderstorms developed during the afternoon of June 5th as low pressure moved along a frontal boundary draped across southern Wisconsin. A portion of the frontal boundary followed a southwest to northeast line across Dane and Dodge counties from Lake Mendota in Madison to Juneau. A west to east line of storms developed north of Middleton and pushed northeast. Funnel clouds formed when the thunderstorm cells intersected the boundary.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 513 AM CDT SAT JUN 5 2010 WIZ046-047-051-052-056>060-062>072-061015- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 513 AM CDT SAT JUN 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS...ESPECIALLY OVER THE FAR SOUTH. SEVERE STORMS ARE NOT EXPECTED AS THE UNSTABLE AIR IS EXPECTED TO REMAIN SOUTH ACROSS ILLINOIS AND INDIANA. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS ANOTHER CHANCE FOR THUNDERSTORMS MONDAY NIGHT THROUGH WEDNESDAY AND AGAIN FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ643>646-061015- SHEBOYGAN TO PORT WASHINGTON WI- PORT WASHINGTON TO NORTH POINT LIGHT WI- NORTH POINT LIGHT TO WIND POINT WI- WIND POINT WI TO WINTHROP HARBOR IL- 513 AM CDT SAT JUN 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS...ESPECIALLY SOUTH OF MILWAUKEE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS ANOTHER CHANCE FOR THUNDERSTORMS TUESDAY AND WEDNESDAY AND AGAIN FRIDAY. HENTZ WWW.WEATHER.GOV/MKX
The Milwaukee radar (KMKX), 55 km away, was scanning. The volume nearest the first event began at 19:08 UTC.
2 funnel cloud. Local standard time, as filed.
Law enforcement, along with spotters and the general public, saw a funnel cloud form, dissipate, and reform from a thunderstorm as it moved northeast through the Sun Prairie area.
Two individuals reported a funnel cloud 1 mile west of Middleton.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2010Every state in 2010This day in weather historyWarnings in Wisconsin, June 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 229065, 229068.