Ice jams on rivers can also cause substantial flooding. Air blowing across a body of water, such as a large lake or the ocean, is an excellent source of moisture. An example of lift is warm air colliding with cold air and being forced to rise over the cold dome. The boundary between the warm and cold air masses is called a front. Another example of lift is air flowing up a mountain side.
People die of heart attacks while shoveling snow.
People die of hypothermia from prolonged exposure to cold. The actual threat to you depends on your specific situation. Majority are males over 40 years old. The wind chill is based on the rate of heart loss from exposed skin caused by combined effects of wind and cold. As the wind increases, heat is carried away from the body at an accelerated rate, driving down the body temperature.