Severe Thunderstorm Warning — Putnam 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 11 at 9:51AM CDT until August 11 at 10:30AM CDT by NWS Quad Cities IA IL
At 950 AM CDT, severe thunderstorms were located along a line extending from La Salle to Marshall-Putnam County Fairgrounds, moving east at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Hennepin, Spring Valley, DePue, Granville, Bureau Junction, McNabb, Putnam, Mark, Magnolia, Standard, Lake Thunderbird, and Florid. This also includes Donnelley DePue State Fish and Wildlife Area. This includes Interstate 180 between mile markers 1 and 8.
Effective August 11, 2026 at 10:51 AM ET · Expires August 11, 2026 at 11:30 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Quad Cities IA IL
Expires
August 11, 2026 at 11:30 AM ET
Last Checked
44 minutes ago
What To Do
📋 Official NWS Guidance
Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Also In Effect For
This same Severe Thunderstorm Warning also covers:
Other Active Alerts in Illinois
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Severe Thunderstorm Warning Alerts for Putnam 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 Putnam 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 (44 minutes ago). It's set to expire August 11, 2026 at 11:30 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Putnam County?
Download StormCast free on Google Play and set Putnam 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.
What other areas does this alert cover?
This same Severe Thunderstorm Warning is also in effect for Bureau County.