Severe Thunderstorm Warning for Johnson and Union Counties, IL
This alert is no longer in effect.
NOAA issued it on August 20, 2026, 3 days 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.
NWS Paducah KY has issued a Severe Thunderstorm Warning for Johnson County and eastern Union County in southern Illinois until 11:45 PM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Southern Illinois
- Issued
- August 20, 2026
- Issuing authority
- NWS Paducah KY
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 days ago; use the issuing agency's live warning service for current conditions in Southern Illinois.
Alert Details
Severe Thunderstorm Warning issued by NWS Paducah KY. Effective from 2026-08-19T22:57:00-05:00 until 2026-08-19T23:45:00-05:00. Alert level: Severe. Certainty: Observed. Urgency: Immediate.
Affected Areas
Johnson County in southern Illinois and eastern Union County in southern Illinois. Locations impacted include Anna, Jonesboro, Vienna, Cobden, Goreville, Dongola, Cypress, Buncombe and Simpson.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.
Expected Conditions
At 10:57 PM CDT, a severe thunderstorm was located 6 miles north of Dongola, or 6 miles east of Anna, moving east at 50 mph. Hazards include 60 mph wind gusts and quarter size hail (1.00 inch). Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
Timeline
Alert effective August 19 at 10:57 PM CDT until August 19 at 11:45 PM CDT.
Original source: NOAA Official Notice ↗
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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 (970 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 20, 2026.
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