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Friday, October 16, 2009
It's that time of year again. Actually, any time of the year is good for contrails. The story is that the cold, condensed, moist air in the upper atmosphere is disturbed by the object or jet moving through it. This creates ice particles that form contrails that turn into long clouds. What is not in the story is the question, why are there so many jets over Humboldt County? We must be a popular fly over route both north and south over the mountains and in all directions elsewhere. Only over the mountains is there a clear traffic pattern. My favorite of these photos are the two jets crossing paths in almost the opposite direction.
Note the pockets of warm or dry air where the contrails stop and start again.
Looking up can be fun! Click images to enlarge.