Severe Thunderstorms

Severe thunderstorms are weather systems that can bring high winds, flash flooding, hail, and dangerous lightning.

Severe thunderstorm in Outagamie County, WI

Preparedness

Before

  • Sign up for weather notifications. Explore options on how to receive weather alerts on our Public Notifications page
  • Identify your safety areas 
  • Build and maintain your emergency supply kit

For more information on general preparedness, visit our Emergency Preparedness page.

During 

  • When thunder roars, go indoors! Take shelter in a sturdy building or a car with a roof
  • Actively monitor the weather by watching the news, monitoring social media, or listening to a weather radio 

After

  • Do not walk under damaged powerlines and trees. Instead, report these hazards
  • Wear proper clothing when handling debris (closed toe shoes, gloves, pants, and long sleeves)

Severe Thunderstorm Watch

Severe thunderstorms are possible in or near the identified watch area.

Actions to take:

  • Stay informed of the weather conditions
  • Be prepared to seek shelter

Severe Thunderstorm Warning

Severe thunderstorms have been reported or identified by radar. 

Actions to take:

  • Take shelter in a sturdy building immediately 
    • Go to the lowest interior room
  • Actively monitor the weather by watching the news or listening to a weather radio
  • Wait until the storm has cleared to leave your safe area

 

Additional Resources

NWS - Severe Thunderstorm Safety

Ready.gov - Thunderstorms & Lightning Safety

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