PANAMA CITY, Fla. (WMBB) — Meteorologist Melissa Thomas explains what the various symbols on a weather map mean. Understanding what is occurring on a weather map would be impossible if you do not understand each of the symbols. Common fronts are covered such as cold fronts, warm fronts, stalled fronts, occluded fronts and how to tell which one is which. How to decipher which way the air masses are being transported is discussed as well. Dry lines are even explained as they are areas where thunderstorms are likely to form.