Common sense told people in Whitefish Bay it was too cold for a tornado to be on the way.
Some thought it might be another kind of disaster warning when the outdoor siren went off at 4:10 A-M.
Wisconsin has experienced December tornadoes, but not when the temperature is 10 degrees.
Officials at the Milwaukee County Office of Emergency Management say the siren sounding Wednesday morning was an error.
County crews responded trying to figure out what happened – but no explanations, so far.
