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 hypothermia from prolonged exposure to cold.
Winter Deaths Everyone is potentially at risk during winter storms. The actual threat to you depends on your specific situation. Majority are males over 40 years old. Frostbite causes a loss of feeling and a white or pale appearance in extremities, such as fingers, toes, ear lobes, or the tip of the nose. If you must wait for help, slowly rewarm affected areas.