| Event | Severe Thunderstorm Warning |
| Severity | Severe |
| Urgency | Immediate |
| Certainty | Observed |
| Area | Iowa, WI; Sauk, WI |
| Effective | 8/21/2026, 3:23:00 PM CDT |
| Expires | 8/21/2026, 4:15:00 PM CDT |
Severe Thunderstorm Warning issued August 21 at 3:23PM CDT until August 21 at 4:15PM CDT by NWS Milwaukee/Sullivan WI
Details
SVRMKX
The National Weather Service in Milwaukee/Sullivan has issued a
* Severe Thunderstorm Warning for…
Northeastern Iowa County in south central Wisconsin…
Southern Sauk County in south central Wisconsin…
* Until 415 PM CDT.
* At 323 PM CDT, severe thunderstorms were located along a line
extending from 15 miles northwest of Mazomanie to near Spring Green
to 10 miles east of Muscoda, moving southeast at 15 mph.
HAZARD…60 mph wind gusts and quarter size hail.
SOURCE…Radar indicated.
IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include…
Sauk City, Spring Green, Arena, Plain, Clyde, and Governor Dodge St
Park.
Other landmarks included are the following Location The House on the
Rock.
Instructions
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.
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