Severe Thunderstorm Warning Issued for Clinton and Washington Counties in Illinois
This alert is no longer in effect.
NOAA issued it on April 3, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Severe Thunderstorm Warning is in effect for parts of south central Illinois until 6:45 PM CDT, with 60 mph wind gusts expected to impact Clinton and Washington counties.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- South Central Illinois
- Issued
- April 3, 2026
- Issuing authority
- NWS St Louis MO
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in South Central Illinois.
Alert Details
The National Weather Service in St Louis MO has issued a Severe Thunderstorm Warning for central Clinton County and Washington County in south central Illinois. This alert was issued at 5:51 PM CDT following radar-indicated storm activity.
Affected Areas
The warning covers the following geographic regions in south central Illinois:
- Clinton County (Central portion)
- Washington County
Specific locations impacted include Nashville, Okawville, Bartelso, Lively Grove, Johannisburg, New Memphis, Damiansville, Oakdale, Addieville, Covington, Posen, Beaucoup, Hoyleton, Ashley, Hoffman, Richview, Irvington, Wamac, and Shattuc. This warning also includes Interstate 64 in Illinois between exits 34 and 61.
What You Should Do
Residents in the warning area should seek shelter immediately inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds. Because tornadoes can develop quickly from severe thunderstorms, the NWS recommends moving to an interior room on the lowest floor of a well-built structure.
Expected Conditions
At 5:51 PM CDT, a severe thunderstorm was located over Marissa, or approximately 10 miles northwest of Sparta, moving east at 55 mph. The primary hazard associated with this storm is 60 mph wind gusts. Expected impacts include damage to roofs, siding, and trees.
Timeline
- Effective Period: 5:51 PM CDT to 6:45 PM CDT on March 15, 2026.
- Related Alerts: A Tornado Watch remains in effect for a portion of south central Illinois until 8:00 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Frequently Asked Questions
Common questions about this NWS weather alert.