A cold front phenomenon characterized by cold air pushing into much warmer air mass. The cold air being more dense than warm air is able to effectively push it forward usually at a fast pace.
When the cold front is passing through an area, there are gusts of wind which usually sweep right across the ground and raise the dust in dry areas, there is a sudden drop in temperature with moderate to heavy rain sometimes with thunder, lightning and hail.
The warm air moving ahead of the cold front produces cumulus or cumulonimbus clouds with thunderstorms as atmospheric pressure falls then slowly rises again after the cold front has passed.
Temperatures are noticeably cooler in a given area after a cold front has passed, which is followed by replacement of cumulus clouds by stratus and stratocumulus clouds and clear skies.