Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 24, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Apr 3, 2026, 8:58 PM CDT for Racine County, Walworth County, Wisconsin. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2026, 8:58 PM CDT (01:58 UTC)
- Expired
- Apr 3, 2026, 9:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Milwaukee, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Racine County, WI, Walworth County, WI
The radar
The Milwaukee radar (KMKX), 43 km from the middle of the area, began a volume at 02:02 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.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.0 hours before the alert went out and 226 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 546 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 539 m²/s²
- 0-3 km storm-relative helicity
- 562 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 3, 7:32 PM CDT, 1 hour 26 minutes earlier.
Area forecast discussion, Apr 3, 7:32 PM CDT, 1 hour 26 minutes before
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</html>Hazardous weather outlook, Apr 3, 3:02 PM CDT, 5 hours 56 minutes before
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Special weather statement, Apr 3, 8:43 PM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 8:43 PM CDT | Special Weather Statement | MKX | Walworth | 32 min |
| Apr 3, 9:15 PM CDT | Special Weather Statement | MKX | Jefferson, Waukesha | 45 min |
| Apr 3, 9:23 PM CDT | Special Weather Statement | MKX | Milwaukee | 37 min |
| Apr 3, 9:48 PM CDT | River Flood Watch | MKX | Sauk | 13 hr |
| Apr 3, 9:48 PM CDT | River Flood Watch | MKX | Sauk | 13 hr |
| Apr 3, 9:48 PM CDT | River Flood Watch | MKX | Columbia, Sauk | 13 hr |
| Apr 3, 9:54 PM CDT | Special Weather Statement | MKX | Milwaukee | 36 min |
| Apr 4, 4:49 AM CDT | River Flood Warning | MKX | Milwaukee | 11 hr |
| Apr 4, 6:47 AM CDT | River Flood Warning | MKX | Milwaukee | 4 hr |
| Apr 4, 10:45 AM CDT | River Flood Warning | MKX | Sauk | 48 hr |
| Apr 4, 10:48 AM CDT | River Flood Warning | MKX | Sauk | 4 days |
| Apr 4, 10:52 AM CDT | River Flood Warning | MKX | Columbia, Sauk | 48 hr |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.