Severe Thunderstorm Warning — Whiteside 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 8:11AM CDT until August 12 at 9:00AM CDT by NWS Quad Cities IA IL
SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Putnam County in north central Illinois... Whiteside County in northwestern Illinois... Bureau County in north central Illinois... * Until 900 AM CDT. * At 811 AM CDT, severe thunderstorms were located along a line extending from Coleta to near Walnut to Providence, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Sterling, Rock Falls, Princeton, Morrison, Hennepin, Spring Valley, Henry, Prophetstown, DePue, Granville, Walnut, Ladd, Wyanet, Sheffield, Tiskilwa, Tampico, La Moille, Dalzell, Lyndon, and Buda. This includes the following highways... Interstate 80 in Illinois between mile markers 37 and 72. Interstate 88 between mile markers 26 and 44. Interstate 180 between mile markers 1 and 13. This also includes Donnelley DePue State Fish and Wildlife Area, Henne
Effective August 12, 2026 at 9:11 AM ET · Expires August 12, 2026 at 10:00 AM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Quad Cities IA IL
Expires
August 12, 2026 at 10:00 AM ET
Last Checked
1 hour 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.
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Get Severe Thunderstorm Warning Alerts for Whiteside County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Whiteside 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 10:00 AM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Whiteside County?
Download StormCast free on Google Play and set Whiteside 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.