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Severe Thunderstorm Warning for De Kalb, IL

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Applies to
De Kalb
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 248 PM CDT, a severe thunderstorm was located near Kingston, or near Genoa, moving southeast at 20 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include......

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building. This thunderstorm is capable of producing all types of severe weather including large hail and tornadoes. Move quickly to a safe shelter, such as an interior room, a bathroom or closet or basement.

Read official NWS bulletin

Full official description

Bulletin details

At 248 PM CDT, a severe thunderstorm was located near Kingston, or near Genoa, moving southeast at 20 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... DeKalb, Sycamore, Genoa, Cortland, Kirkland, Maple Park, and Kingston.

Lifecycle record

Official revisions

5 captured
  1. Update

    Severe Thunderstorm Warning issued August 21 at 2:49PM CDT until August 21 at 3:00PM CDT by NWS Chicago IL

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 21 at 2:42PM CDT until August 21 at 3:00PM CDT by NWS Chicago IL

    Official revision
  3. Update

    Severe Thunderstorm Warning issued August 21 at 2:36PM CDT until August 21 at 3:00PM CDT by NWS Chicago IL

    Official revision
  4. Update

    Severe Thunderstorm Warning issued August 21 at 2:22PM CDT until August 21 at 3:00PM CDT by NWS Chicago IL

    Official revision
  5. Alert

    Severe Thunderstorm Warning issued August 21 at 2:17PM CDT until August 21 at 3:00PM 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
Methodology and corrections