Recent tornadoes in Iowa are a reminder that severe weather season can arrive without warning. Tornado Season is starting and many people do not know what to do when a tornado warning is in effect. Weather Eye Meteorologist Nicolle Morock says it is important to know the difference between a watch and a warning. She says a tornado warning means there is rotation in the weather system or weather spotters have seen a tornado touch the ground. Morock says when a warning is in effect the best thing to do is to find cover and put as many walls between you and the storm as possible. She also says if a sturdy shelter isn't avaliable, the best thing to do is find a low laying area. She says you never want to stay in a vehicle or manufactured home during a tornado or strong straight line winds, because they can be tossed very easily.