Meteorology (ATPL 050)
Dense cold air undercuts and rapidly lifts warm air. Characterized by steep slopes and convective activity.
Fronts are transition zones between air masses of different densities. In the Northern Hemisphere, Cold Fronts move faster (avg 25-30 kt) than Warm Fronts (avg 10-15 kt). The vertical lifting of air creates adiabatic cooling, condensation, and cloud formation. Occlusion occurs when the cold front catches the warm front, trapping the warm air mass entirely aloft.