National Weather Service on how Chicagoland residents were alerted to the tornado

Pinch Hitters

A family member sits within the debris of their destroyed home after a tornado passed through the area, Monday, June 21, 2021, in Naperville, Ill. (AP Photo/Shafkat Anowar)

National Weather Service Chicago Lead Meteorologist Lee Carlaw joins Jon Hansen to explain how the NWS determines the threat of tornadoes. He also catches us up on how the public is informed in real time of the incoming hazardous weather.

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