⚠️ Severe Thunderstorm Warning – Clayton, IA; Grant, WI – Tuesday, August 18, 2026

Severe Thunderstorm Warning issued August 18 at 2:28PM CDT until August 18 at 3:30PM CDT by NWS La Crosse WI

Details

SVRARX

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for…
Central Clayton County in northeastern Iowa…
West central Grant County in southwestern Wisconsin…

* Until 330 PM CDT.

* At 228 PM CDT, a severe thunderstorm was located over Elkader,
moving east at 15 mph.

HAZARD…60 mph wind gusts and half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* This severe thunderstorm will be near…
Garnavillo around 240 PM CDT.
Guttenberg around 310 PM CDT.

Other locations impacted by this severe thunderstorm include Lock And
Dam 10, Glen Haven, Motor, Osterdock, Clayton Center, County Roads X
47 And C 7 X, and St. Olaf.

Instructions

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.