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Ended official alertUpdated

Severe Thunderstorm Warning for Jefferson, MO; Washington, MO

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 631 PM CDT, severe thunderstorms were located along a line from over Olympian Village to 8 miles west of Potosi, or along a line from 8 miles east of De Soto to 8 miles west of Potosi, moving southeast at 35 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to...

What the bulletin says to do

Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds.

Read official NWS bulletin

Full official description

Bulletin details

At 631 PM CDT, severe thunderstorms were located along a line from over Olympian Village to 8 miles west of Potosi, or along a line from 8 miles east of De Soto to 8 miles west of Potosi, moving southeast at 35 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Fletcher, De Soto, Hillsboro, Mapaville, Victoria, Hematite, Valles Mill, Festus, Olympian Village and Crystal City. This includes the following State Parks... Washington State Park. This includes Interstate 55 in Missouri between exits 170 and 175.

Lifecycle record

Official revisions

3 captured
  1. Update

    Severe Thunderstorm Warning issued August 12 at 6:31PM CDT until August 12 at 6:45PM CDT by NWS St Louis MO

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 12 at 6:00PM CDT until August 12 at 6:45PM CDT by NWS St Louis MO

    Official revision
  3. Alert

    Severe Thunderstorm Warning issued August 12 at 5:43PM CDT until August 12 at 6:45PM CDT by NWS St Louis MO

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS St Louis MO. 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