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Severe Thunderstorm Warning for Lyon, IA; O'Brien, IA; Osceola, IA +4 more

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

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 1016 PM CDT, severe thunderstorms were located along a line extending from near Hills to near George to Hospers, moving northeast at 45 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Public. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely...

What the bulletin says to do

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. Prepare immediately for large hail and damaging winds. People outside should move to a shelter, inside a strong building and away from windows. To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Sioux Falls.

Read official NWS bulletin

Full official description

Bulletin details

At 1016 PM CDT, severe thunderstorms were located along a line extending from near Hills to near George to Hospers, moving northeast at 45 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Public. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Sheldon, Rock Rapids, George, Hospers, Ellsworth, Little Rock, Ashton, Archer, and Matlock around 1020 PM CDT. Other locations in the path of these severe thunderstorms include Luverne, Sibley, Sanborn, Adrian, Melvin and Rushmore.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued September 1 at 10:16PM CDT until September 1 at 10:45PM CDT by NWS Sioux Falls SD

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued September 1 at 10:02PM CDT until September 1 at 10:45PM CDT by NWS Sioux Falls SD

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Sioux Falls SD. This page reorganizes official fields and does not add a forecast or expand the affected area.

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Actual
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Update
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