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Severe Thunderstorm Warning for Henderson, IL; Des Moines, IA; Lee, IA

Official alert fields

What you need to know

Effective
Ends or expires
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 802 AM CDT, severe thunderstorms were located along a line extending from Wever to near Biggsville, moving southeast at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees....

What the bulletin says to do

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.

Read official NWS bulletin

Full official description

Bulletin details

At 802 AM CDT, severe thunderstorms were located along a line extending from Wever to near Biggsville, moving southeast at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Burlington, Oquawka, West Burlington, Middletown, Gladstone, Rozetta, Gulf Port, Iowa Army Ammunition Plant, Denmark, Augusta, Lone Tree, Carthage Lake, Welter Recreation Area, Shokokon, Spring Grove, Heapsville, Wever, Starr's Cave Park and Preserve, Burlington Regional Airport, and Beaverdale. This also includes Delabar State Park and Henderson County Conservation Area.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

6 captured
  1. Update

    Severe Thunderstorm Warning issued August 12 at 8:02AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 12 at 7:43AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision
  3. Update

    Severe Thunderstorm Warning issued August 12 at 7:41AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision
  4. Update

    Severe Thunderstorm Warning issued August 12 at 7:35AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision
  5. Update

    Severe Thunderstorm Warning issued August 12 at 7:30AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision
  6. Alert

    Severe Thunderstorm Warning issued August 12 at 7:27AM CDT until August 12 at 8:30AM CDT by NWS Quad Cities IA IL

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Quad Cities IA 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