Severe Thunderstorm Warning for McHenry, IL
Official alert fields
What you need to know
- Applies to
- McHenry
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Observed
What is happening
At 344 AM CDT, a severe thunderstorm was located near Harvard, moving southeast at 30 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Woodstock, Harvard, Wonder Lake, Hebron, Chemung, and Greenwood.
What the bulletin says to do
For your protection move to an interior room on the lowest floor of a building.
Lifecycle record
Official revisions
- Update
Severe Thunderstorm Warning issued August 11 at 3:44AM CDT until August 11 at 4:15AM CDT by NWS Chicago IL
Official revision - Update
Severe Thunderstorm Warning issued August 11 at 3:35AM CDT until August 11 at 4:15AM CDT by NWS Chicago IL
Official revision - Update
Severe Thunderstorm Warning issued August 11 at 3:23AM CDT until August 11 at 4:15AM CDT by NWS Chicago IL
Official revision - Alert
Severe Thunderstorm Warning issued August 11 at 3:11AM CDT until August 11 at 4:15AM 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