Symbols representing precipitation ... each pointing toward their respective air mass. Occluded fronts are shown in purple on weather maps. An occlusion occurs when cold air overtakes warm air ...

The “L” and “H” icons on weather maps represent, respectively, areas of relative low air pressure (cyclones in meteorological parlance) and high air pressure (anticyclones). Well-formed ...

He headed to ShopRite in Moosic to see if anyone there knows where the term "front" used in weather comes from.