County public-safety director explains tornado warnings and cell-site timing differences
The director of public safety explained that the National Weather Service defines a tornado as a rotation that contacts both cloud and ground; alert timing varies because warnings are sent by cell site and phones register to different sites.
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The public-safety director told commissioners, "The definition for a tornado is when that violent rotation goes from the clouds to the ground," and said the National Weather Service determines tornadoes by on-the-ground investigation of tree and structural damage.
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