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LeftInTX

(34,766 posts)

25. Weather seems to be a factor with persisting contrails

Reply to Richard D (Original post)

Thu Jan 18, 2018, 04:25 PM

Jan 2018

I've seen it around here from time to time.

Those planes probably fly the same routes day after day. For some reason their contrails are persisting today.

Depending on the temperature and humidity at the altitude the contrails form, they may be visible for only a few seconds or minutes, or may persist for hours and spread to be several miles wide, eventually resembling natural cirrus or altocumulus clouds.

https://en.wikipedia.org/wiki/Contrail#Contrails_and_climate

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Question for pilots or someone knowledgeable in general aviation [View all] Richard D Jan 2018 OP

The entire sky is filled with airplane exhaust! earthshine Jan 2018 #1

Most of what you're seeing is clouds, not exhaust ret5hd Jan 2018 #2

The explanation and pic you provide does not resemble the so-called clouds in the OP's pic. earthshine Jan 2018 #22

Uhhhh...the cirrocumulus in the pic i posted... ret5hd Jan 2018 #24

Frankly, your picture is just a blurry mess. earthshine Jan 2018 #26

Here, I found you a kindred soul: ret5hd Jan 2018 #33

Thanks for nothing. earthshine Jan 2018 #35

those are chemtrails, you should really stay inside when the sky looks like that snooper2 Jan 2018 #4

Wait. Copper??? RobinA Jan 2018 #19

That isn't exhaust Foolacious Jan 2018 #6

The water vapor is part of the exhaust. Hassin Bin Sober Jan 2018 #17

A Boeing 747 cannot carry 375,000 gallons of Jet A VMA131Marine Jan 2018 #28

Water vapor? You mean -- homeopathic chemtrails? petronius Jan 2018 #36

I guess I will use this as a point of advantage for one of my causes. NCTraveler Jan 2018 #13

Trying out a new batch of chemicals??? Nac Mac Feegle Jan 2018 #3

Looks like a holding pattern. Completely normal. cos dem Jan 2018 #5

But why . . . Richard D Jan 2018 #7

Not sure about all of ATC standard procedures cos dem Jan 2018 #11

But not generally above 30,000'. pangaia Jan 2018 #29

Not at big airports. zipplewrath Jan 2018 #14

Not true all the time. The holding pattern for the NYC airports for east bound flights is beaglelover Jan 2018 #32

Lining up with the runway? Takket Jan 2018 #8

I don't think so Richard D Jan 2018 #9

What were the destinations/origins? Hassin Bin Sober Jan 2018 #23

That's not what is going on here. They are some 30,000' feet too high. pangaia Jan 2018 #30

How do you know all this about the airline flights? Towlie Jan 2018 #10

An app Richard D Jan 2018 #12

I tried searching for news articles but came up empty. Could you see if those flights were delayed? Towlie Jan 2018 #15

Were they commercial airliner flights? With flight numbers? Hassin Bin Sober Jan 2018 #18

Definitely commercial heavies Richard D Jan 2018 #20

Congestion? Blue_Tires Jan 2018 #16

Great idea Richard D Jan 2018 #21

Weather seems to be a factor with persisting contrails LeftInTX Jan 2018 #25

Could be military contrails. trof Jan 2018 #27

To spread the chemtrails properly, you have to make loops..... brooklynite Jan 2018 #31

This jpak Jan 2018 #34