Fronts

By: Zoey House

Cold Front

A cold front is defined as the transition zone where a cold air mass is replacing a warmer air mass. Cold fronts generally move from northwest to southeast. Warm air slides above the cold front causing clouds and rain. It brings Nimbostratus, Stratocumulus, and Stratus clouds, mostly Cumulus clouds. This brings big cloud cover with dark clouds. This air is forced to rise and cool. Rain often forms in bands.
What are weather fronts?

Warm Front

A warm front is defined as the transition zone where a warm air mass is replacing a cold air mass. Warm fronts generally move from southwest to northeast. Warm air slides above the cold air mass, causing cold weather. Warm fronts bring Altocumulus, Altostratus, Cirrocumulus, Cirrostratus, Cirrus, Cumulonimbus Nimbostratus, Stratus, and Stratocumulus. When warm air expands into the atmosphere it forms clouds. It will start out from Cirrus clouds and then forms bigger and darker clouds after the cold front comes into place.

Stationary Front

A stationary front is a pair of air masses, neither of which is strong enough to replace the other. This is where both fronts collide causing lots of rain.
stationary occluded fronts

Occluded Front

An occluded front is formed during the process of cyclogenesis when a cold front overtakes a warm front. This is two air masses and a warm air mass collide causing rain.
Weather Fronts Song