Numerous Reports of Unusual Streak in the Sky

Edhat readers share photos of an unusual streak seen in the sky on Friday.
By Rube
An unusual streak in the sky at approximately 9:15 PM Friday looking East from Mesa. Any idea what caused it?

By Gabriela

By Lily
Yes it was beautiful!

By Nancy
Yes and it stayed there for over an hour

By Allison
By John Palminteri of KEYT News
Getting lots of questions about this

7 Comments
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May 21, 2019 06:37 PMwas a really cool cloud, but thats all.
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May 18, 2019 09:07 AMIf it was parallel to the ridge behind the city then it might be a type of lenticular cloud.
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May 18, 2019 08:28 AMIt must be the International Space Station because it was recently announced that it could be seen in our area and that the "BEST" (clearest, near the Big Dipper) view of it would be tomorrow, Sunday evening from 8:45-8:50 p.m. Set your phones to remind you :-)
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May 18, 2019 10:19 AMDefinitely not the ISS. Good advice for phone reminder, though!
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May 18, 2019 07:11 AMThanks, everyone, for the photos. Amazing!
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May 18, 2019 12:17 AMWe watched it from the Westmont Public Telescope Night tonight. It was a product of the high altitude winds we had that were making the Moon look like it was underwater through the scopes. Appears to be a singleton of a type of cloud called Stratocumulus undulatus.
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May 18, 2019 01:34 PMI didn't know stratocumulus could undulate. Thanks for the detailed info, MACPUZL.