Tornado Warning for Cook, IL; DuPage, IL; Will, IL
Official alert fields
What you need to know
- Effective
- Ended
- Official severity
- Extreme
- Official urgency
- Immediate
- Official certainty
- Observed
What is happening
The tornado-producing portion of the line which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for northeastern Illinois.
What the bulletin says to do
No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.
Lifecycle record
Official revisions
- Update
Tornado Warning issued August 11 at 10:50AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision - Update
Tornado Warning issued August 11 at 10:40AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision - Update
Tornado Warning issued August 11 at 10:30AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision - Update
Tornado Warning issued August 11 at 10:22AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision - Update
Tornado Warning issued August 11 at 10:16AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision - Alert
Tornado Warning issued August 11 at 10:10AM CDT until August 11 at 11:00AM CDT by NWS Chicago IL
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Chicago IL. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Update
- Last collected