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Ended official alertUpdated

Severe Thunderstorm Warning for Marshall, MN; Polk, MN; Grand Forks, ND +1 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 945 PM CDT, a severe thunderstorm was located near Ardoch, or 18 miles south of Grafton, moving east at 40 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...

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building.

Full official description

Bulletin details

At 945 PM CDT, a severe thunderstorm was located near Ardoch, or 18 miles south of Grafton, moving east at 40 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... Alvarado, Manvel, Oslo, Ardoch, Big Woods, and Poland. This includes Interstate 29 between mile markers 152 and 166.

Lifecycle record

Official revisions

3 captured
  1. Update

    Severe Thunderstorm Warning issued August 24 at 9:45PM CDT until August 24 at 10:00PM CDT by NWS Grand Forks ND

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 24 at 9:21PM CDT until August 24 at 10:00PM CDT by NWS Grand Forks ND

    Official revision
  3. Alert

    Severe Thunderstorm Warning issued August 24 at 9:06PM CDT until August 24 at 10:00PM CDT by NWS Grand Forks ND

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Grand Forks ND. 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