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During the 9th and 10th July the Baltic States and Finland experienced heavy rain as a wave-cloud formed in moist and warm south-easterly air stream.

November 2005 severe snowfall had major effects in Western Europe. Snowfall caused an outage of power plants leaving people without heating and electricity…

Vortices at different scales in the WV image; small scale dark circles (eyes) represent sinking stratospheric air.

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.