Severe Thunderstorm Warning Issued for Jefferson, Rock, Walworth Counties WI
This alert is no longer in effect.
NOAA issued it on July 3, 2026, 7 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Milwaukee/Sullivan has issued a Severe Thunderstorm Warning for Jefferson, Rock and Walworth counties in Wisconsin until 3:15 PM CDT on June 10.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Jefferson, Rock and Walworth Counties, WI
- Issued
- July 3, 2026
- Issuing authority
- NWS Milwaukee/Sullivan WI
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 7 weeks ago; use the issuing agency's live warning service for current conditions in Jefferson, Rock and Walworth Counties, WI.
Alert Details
A Severe Thunderstorm Warning (SVR) has been issued by the National Weather Service Milwaukee/Sullivan WI. The alert is effective from June 10 at 2:08 PM CDT until June 10 at 3:15 PM CDT.
Affected Areas
The warning covers Jefferson County, northeastern Rock County, and western Walworth County in Wisconsin. Locations impacted include Watertown, Whitewater, Fort Atkinson, Elkhorn, Delavan, Jefferson, Lake Mills, Milton, Waterloo, Williams Bay, Walworth, Johnson Creek, Palmyra, Fontana-On-Geneva Lake, Sharon, Darien, Cambridge, Lake Ripley, Lake Koshkonong, and Como.
What You Should Do
Remain alert for a possible tornado. If you spot a tornado, go at once into the basement or a small central room in a sturdy structure. Move to an interior room on the lowest floor of a building.
Expected Conditions
At 2:08 PM CDT, severe thunderstorms were located along a line from near Cottage Grove to 6 miles southwest of Edgerton to Rockford Airport, moving northeast at 45 mph. Hazards include 70 mph wind gusts and penny size hail.
Timeline
The warning is in effect from June 10, 2026 at 2:08 PM CDT and expires June 10, 2026 at 3:15 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,172 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 3, 2026.
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