Quad City Siren Guidelines back  
Date of Record: June 12, 2013

Common guidelines for activating outdoor warning sirens have been formally adopted by Rock Island County, Scott County, Rock Island Arsenal as well as the cities of Moline, East Moline, Rock Island, Davenport, Bettendorf and many smaller communities.

Under the Quad City Metro area outdoor warning system guidelines, sirens will be sounded for:

  • tornadoes,
  • thunderstorms with winds 70 mph or greater (potential for whole trees to snap or uproot), or
  • golf ball sized hail or larger (potential for windows to break). 

Click on the link below to read the complete Quad City Siren Guidelines:

Click on the link below to watch video of the National Weather Service media briefing on July 21, 2009:
This video file is in Microsoft Windows Media Format. To access this you must have Microsoft Windows Media Player installed on your computer. You can download Microsoft Windows Media Player free from Microsoft's website by clicking here.