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Contrail cirrus are basically the same as natural cirrus. They form at lower water saturation levels, in long lines, and have more available nuclei, so can start out denser. You are making them out to be some kind of zombie cloud.
Is this the evolution of the "chemtrail" theory then? Now normal contrails are chemtrails?
Originally posted by ProudBird
reply to post by SGTSECRET
in the picture below you can clearly see that whatever the plane left behind is falling to the ground.
Nope. Nothing is falling to the ground, in the photos. Perfectly normal contrails.
Persistent contrails = artificial cloud cover = weather modification. There is no science which can dispute this.
Perfectly normal contrails that persist and dissipate into a haze that lasts for hours. Blocking out the sun is perfectly normal activity, isn't it?
Fall streaks form when snowflakes and ice crystals fall from cirrus clouds. The change in wind with height and how quickly these ice crystals fall determine the shapes and sizes the fall streaks attain. Since ice crystals fall much more slowly than raindrops, fall streaks tend to be stretched out horizontally as well as vertically. Cirrus streaks may be nearly straight, shaped like a comma, or seemingly all tangled together.
Similar to fall streaks is virga, which appears as streamers suspended in the air beneath the base of precipitating clouds. Virga develops when precipitation falls through a layer of dry air and evaporates before reaching the ground.
Originally posted by SayonaraJupiter
Riiiiiight. Perfectly normal contrails that persist and dissipate into a haze that lasts for hours. Blocking out the sun is perfectly normal activity, isn't it?