⚠️ Severe Thunderstorm Warning – St. Charles, MO – Wednesday, August 12, 2026

Severe Thunderstorm Warning issued August 12 at 5:00PM CDT until August 12 at 5:30PM CDT by NWS St Louis MO

Details

SVRLSX

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for…
Northwestern Saint Charles County in east central Missouri…

* Until 530 PM CDT.

* At 500 PM CDT, a severe thunderstorm was located over St. Paul,
moving east at 35 mph.

HAZARD…60 mph wind gusts and small hail.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
Wentzville, Flint Hill, Josephville, Old Monroe, St. Paul, Lake St.
Louis, O’Fallon, Dardenne Prairie, St. Peters, Weldon Spring
Heights, Cottleville, Weldon Spring, Kampville, St. Charles and
Harvester.

This includes the following State Parks…
First Missouri State Capitol Historic Site.

This includes Interstate 70 in Missouri between exits 208 and 229.

Instructions

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.