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DAE notice people call any thin cloud a cirrus when it is usually just contrail spread?
I finally got a shot I have been chasing for two months from my driveway in Tulsa, a real cirrus uncinus with the hook curls on the end, and my neighbor looked at it and said oh yeah that is just a cirrus. That is the thing people keep getting wrong. Thin and wispy does not mean cirrus, because most of the streaks we see over town are old contrails that have spread out and turned into cirrostratus or altostratus. Real cirrus sits way up past 20,000 feet, has that silky look, and holds sharp edges or hooks instead of a flat sheet. I check the height on my weather app before I even take the picture now, and nine times out of ten the wispy stuff is a plane trail that is an hour old. Last Tuesday I counted six streaks over the airport and every single one was spread contrail, not one real cirrus. So how do you all tell them apart when the sky is busy, do you go by crisp edges or do you just check the sounding?
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