National Weather Service United States Department of Commerce

The annual Missouri and Illinois Statewide Severe Weather Drills will be conducted as part of Severe Weather Preparedness Week.

In Missouri and Illinois, the drill will be held on Tuesday, March 7th at 10am. There will not be a backup date for these drills. 



The National Weather Service will use the Routine Weekly Test (RWT) code this year instead of a live tornado warning (TOR). Outdoor sirens may be alarmed at the discretion of local authorities.

The Routine Weekly Test will NOT activate the following:

1. The national Emergency Alert System (EAS)

2. NOAA Weather Radios not set to receive Routine Weekly Tests (RWTs)

3. The WEA service for cell phones


While everyone is encouraged to participate by reviewing your severe weather plans at the time of the drill, if the date and time does not work for you, you are encouraged to conduct the drill at a time that works for you!