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Ended official alertUpdated

Tornado Warning for Black Hawk, IA; Grundy, IA; Tama, IA

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
Black Hawk, Grundy, Tama
Effective
Ended
Official severity
Extreme
Official urgency
Immediate
Official certainty
Observed

What is happening

The storm which prompted the tornado warning has weakened and has exited the warned area. Therefore, the tornado warning will be allowed to expire at 445 PM. However, gusty winds are still possible with these thunderstorms and a severe thunderstorm warning remains in effect for the area. A Tornado Watch remains in...

What the bulletin says to do

No separate action instruction was included in this NWS record. Read the complete official bulletin and follow local authorities.

Read official NWS bulletin

Full official description

Bulletin details

The storm which prompted the tornado warning has weakened and has exited the warned area. Therefore, the tornado warning will be allowed to expire at 445 PM. However, gusty winds are still possible with these thunderstorms and a severe thunderstorm warning remains in effect for the area. A Tornado Watch remains in effect until 1000 PM CDT for central and northeastern Iowa. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Des Moines. Remember, a Severe Thunderstorm Warning still remains in effect until 500 PM.

Lifecycle record

Official revisions

5 captured
  1. Update

    Tornado Warning issued July 20 at 4:41PM CDT until July 20 at 4:45PM CDT by NWS Des Moines IA

    Official revision
  2. Update

    Tornado Warning issued July 20 at 4:33PM CDT until July 20 at 4:45PM CDT by NWS Des Moines IA

    Official revision
  3. Update

    Tornado Warning issued July 20 at 4:23PM CDT until July 20 at 4:45PM CDT by NWS Des Moines IA

    Official revision
  4. Update

    Tornado Warning issued July 20 at 4:10PM CDT until July 20 at 4:45PM CDT by NWS Des Moines IA

    Official revision
  5. Alert

    Tornado Warning issued July 20 at 3:57PM CDT until July 20 at 4:45PM CDT by NWS Des Moines IA

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Des Moines IA. 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