NWS St Louis MOSV.W 0255September 17, 2026
Severe Thunderstorm Warning: St. Charles, MO
The National Weather Service office in St Louis issued a severe thunderstorm warning for St. Charles in Missouri, which was in force until 4:30 p.m. local time on September 17. It was the 255th severe thunderstorm warning the NWS office in St Louis issued in 2026. Missouri had 71 severe thunderstorm warnings in September 2026, against 36 in an average September of 2008-2025 (Missouri's severe thunderstorm warnings by year).
ExpiredWarning
In force for 52 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, St Louis MO
- Area
- St. Charles
- State
- Missouri
- Level
- Warning
- Issued
- 3:38 p.m. CDT, September 17, 2026
- Expires
- 4:30 p.m. CDT, September 17, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KLSX SV.W 0255
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Northwestern Saint Charles County in east central Missouri... * Until 430 PM CDT. * At 338 PM CDT, a severe thunderstorm was located over St. Paul. This storm was stationary. 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. * This severe thunderstorm will be near... St. Paul, O'Fallon, St. Peters, Josephville, Lake St. Louis, Wentzville, Dardenne Prairie, Cottleville and St. Charles around 340 PM CDT. This includes Interstate 70 in Missouri between exits 210 and 227.
What the agency told people to do
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.