Severe Thunderstorm Warning — Knox County, Illinois
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 12 at 8:39AM CDT until August 12 at 8:45AM CDT by NWS Lincoln IL
The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, gusty winds up to 45 mph are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for west central Illinois.
Effective August 12, 2026 at 9:39 AM ET · Expires August 12, 2026 at 9:48 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Lincoln IL
Expires
August 12, 2026 at 9:48 AM ET
Last Checked
1 hour ago
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Get Severe Thunderstorm Warning Alerts for Knox County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Knox County, Illinois?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (1 hour ago). It's set to expire August 12, 2026 at 9:48 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Knox County?
Download StormCast free on Google Play and set Knox County, Illinois as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.