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Waves are cloud bulges at the rear edge of Cold Front cloud bands, indicating the initial stage of secondary cyclogenesis.

A Detached Warm Front shows a cloud configuration similar to that of a Warm Front Band, but is detached (isolated) from the Cold Front cloud band. It can be…

Warm Front Shields are accompanied by cloud shields comprising the areas of the warm sector and the Warm Front.

Warm Front Bands are accompanied by cloud bands which usually are shorter than Cold Front cloud bands.

Middle and high level cloud in a rising warm, moist air stream relative to its system velocity.

Cut off low in upper levels without corresponding surface low, accompanied by cloud bands at the boundaries and convective cloud in the low center.

Organised cloudiness in the thickness ridge in front of a Cold Front which can be extremely convective in unstable situations.

Low and middle level cloudiness develops at the windward side of mountains if the wind streams almost perpendicularly to the mountain barrier.