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Ended official alertUpdated

Tornado Warning for La Salle, IL

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

Official alert fields

What you need to know

Applies to
La Salle
Effective
Ended
Official severity
Extreme
Official urgency
Immediate
Official certainty
Observed

What is happening

At 907 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located over Leland, or near Sheridan, moving east at 50 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile...

What the bulletin says to do

This cluster of thunderstorms is capable of producing tornadoes and widespread significant wind damage. Do not wait to see or hear the tornado. For your protection move to an interior room on the lowest floor of a building.

Read official NWS bulletin

Full official description

Bulletin details

At 907 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located over Leland, or near Sheridan, moving east at 50 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. These dangerous storms will be near... Sheridan, Lake Holiday, and Somonauk around 910 AM CDT. Other locations impacted by this tornadic thunderstorm include Millington, Norway, Dayton, and Wedron.

Lifecycle record

Official revisions

4 captured
  1. Update

    Tornado Warning issued August 12 at 9:07AM CDT until August 12 at 9:15AM CDT by NWS Chicago IL

    Official revision
  2. Update

    Tornado Warning issued August 12 at 8:56AM CDT until August 12 at 9:15AM CDT by NWS Chicago IL

    Official revision
  3. Update

    Tornado Warning issued August 12 at 8:46AM CDT until August 12 at 9:15AM CDT by NWS Chicago IL

    Official revision
  4. Alert

    Tornado Warning issued August 12 at 8:37AM CDT until August 12 at 9:15AM CDT by NWS Chicago IL

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Chicago 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