Overview
A front is a boundary or transition zone between two air masses. Fronts are classified by which type of air mass is replacing the other. There are four types of fronts: (1) Cold fronts, (2) Warm fronts, (3) Stationary fronts, and (4) Occluded fronts. Fronts are usually detectable at the surface by a significant change in air temperature, atmospheric pressure, or wind speed and direction. It is imperative that a pilot have a solid understanding of the the typical weather associated with each type of front as well as their locations with respect to the intended flight plan.
Examples
| Type | Description |
|---|---|
| Cold Front | Cold air mass overtakes and lifts a warm air mass |
| Warm Front | Warm air mass overtakes and rides over a cold air mass |
| Stationary Front | Forces of the two air masses are relatively equal |
| Occluded Front | Cold front catches up to a slow-moving warm front |