Severe Thunderstorm Warning for Jersey and Madison Counties in Illinois and St. Charles County in Missouri
This alert is no longer in effect.
NOAA issued it on April 26, 2026, 3 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 until 10:45 PM CDT for parts of Illinois and Missouri, featuring 60 mph wind gusts and small hail that could damage roofs, siding, and trees.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm
- Affected area
- Southwestern Illinois and East Central Missouri
- Issued
- April 26, 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 3 months ago; use the issuing agency's live warning service for current conditions in Southwestern Illinois and East Central Missouri.
Severe Thunderstorm Warning
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service (NWS) St Louis MO. It is effective from 10:14 PM CDT on April 17, 2026, until 10:45 PM CDT on the same day.
Affected Areas
The warning affects Jersey County and Northwestern Madison County in southwestern Illinois, and Northeastern Saint Charles County in east central Missouri. Specific locations include Hardin, Orchard Farms, Hazelwood, Grafton, Portage Des Sioux, Florissant, Elsah, Fieldon, Nutwood, Otterville, McClusky, Delhi, and Fidelity. This includes Confluence State Park.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. Additionally, tornadoes can develop quickly from severe thunderstorms, so seek shelter immediately in an interior room on the lowest floor of a well-built structure.
Expected Conditions
Hazards include 60 mph wind gusts and small hail. Expect damage to roofs, siding, and trees.
Timeline
The alert is effective from 10:14 PM CDT on April 17, 2026, and ends at 10:45 PM CDT on April 17, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,162 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 26, 2026.
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