The threat of tornadoes increases rapidly during the month of May and lasts through August.
Denver International Airport passengers were told to take shelter in airport shelters after a tornado warning went into effect early Tuesday afternoon.
Denver International Airport passengers are being told to take shelter in airport bathrooms following a tornado warning.
The City of Denver is upgrading its tornado warning system as severe weather season gets underway in Colorado.
The National Weather Service has canceled a tornado warning for the eastern and northeastern Denver area, including the western part of Denver International Airport.
A tornado warning for west central Adams County in northeast Colorado expired at 3 p.m. Wednesday.