Weather Alert WatchOfficial-source alert index
NWS feedSource freshLast successful check:
Ended official alertUpdated

Severe Thunderstorm Warning for Lyon, IA; Sioux, IA; Rock, MN +3 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 838 PM CDT, severe thunderstorms were located along a line extending from near Dell Rapids to near Sioux Falls to near Davis, moving east at 45 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Public. Around 835 PM, a 72 mph wind gust was reported at the Sioux Falls, SD airport. IMPACT...Expect...

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building. 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 838 PM CDT, severe thunderstorms were located along a line extending from near Dell Rapids to near Sioux Falls to near Davis, moving east at 45 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Public. Around 835 PM, a 72 mph wind gust was reported at the Sioux Falls, SD airport. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Sioux Falls, Canton, Brandon, Harrisburg, Garretson, Worthing, Valley Springs, Sherman, Palisades State Park, and Lake Alvin State Recreation Area around 845 PM CDT. Larchwood, Hills, and Beaver Creek around 850 PM CDT. Other locations in the path of these severe thunderstorms include Inwood, Lester, Newton Hills State Park, Luverne, Hardwick, Fairview and Blue Mounds State Park.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued July 25 at 8:39PM CDT until July 25 at 9:15PM CDT by NWS Sioux Falls SD

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued July 25 at 8:33PM CDT until July 25 at 9:15PM 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.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections