Here is an example of there not being enough moisture in the atmosphere at cruising altitude for a Persistent Spreading Contrail to form. The above photo was taken at 4.05pm on June 2, 2024, 55 minutes before the San Diego weather balloon out of Miramar Naval Air station went up about 90 miles South West of the photo location to gather atmospheric readings. OMG 90 miles away, we can’t make any reliable connection from those readings to the photos! the time difference is 55 minutes! Who knows what conditions are now? But this is mostly a distraction to throw you off the trail because air masses are, well, massive: Air masses are large volumes of air with distinct boundaries that can extend thousands of square miles horizontally and several kilometers vertically. They can be as shallow as 1–2 kilometers or as deep as the troposphere, which is about 10–18 kilometers above the Earth’s surface. Air masses are characterized by similar temperature and moisture properties at any given altitude, so temperature and moisture gradients within them are small. Weather forecasters track air masses around the world. Link to air mass description The bottom line is that people will say that “..there MUST BE ENOUGH MOISTURE in the atmosphere for a Persistent Spreading Contrail (PSC) to form, look at the lines OTHERWISE..”

Otherwise WHAT, I would ask, finish the sentence! There is very very rarely enough moisture at the minimum 26,000 altitude for a Persistent Spreading Contrail PSC to form, period. So please finish the sentence. Otherwise what? Yup, it’s a big ole EDP party in the sky! That’s what!! lol

Oh, hold that thought! While we’re at it, to my eye those lines look like they are at 15,000 – 20,000 ft altitude, nowhere near the minimum 26,000 ft altitude required for a contrail to even form. Plus, if the trails and the ‘clouds’ they create were occurring at commercial cruising altitudes of 30,000 ft to 40,000 ft, then wouldn’t airline pilots complain vociferously? Just axskin …

OK, so where were we, oh yea, so given the size of and the homogeneity of the conditions within an air mass, the balloon readings are generally consistent for hours, if not days. For sure conditions change, but the conditions are generally quite contrasting between two air masses, so any new air mass would reveal itself in the next 12 hour balloon readings, which did not occur in this instance. So anyone who argues that the pockets of moisture are there, but you have to take their word for it because they never show up in the balloon readings is, well, full of hot air to put nicely.
Here is where one gets the balloon readings. 1200Z time June 2 is 5am PST June 2 here in San Diego, and 0000Z GMT time June 4 is 5pm PST June 3, 24 hours after the photo was taken, so one can see that the conditions are did not materially change in the next 24 hours.

https://weather.uwyo.edu/cgi-bin/sounding?region=naconf&TYPE=TEXT%3ALIST&YEAR=2024&MONTH=06&FROM=0300&TO=0400&STNM=72293

Balloon readings map:
https://weather.uwyo.edu/upperair/sounding.html

Ok, ladies and gentleman of the jury, the stop and start lines in the sky are not possibly coming from normal jet aircraft. AND we have video evidence that that show these trails emanating from what can only be described as alien craft or projections of some sort. Video evidence of Extraterrestrial Drone Planes I rest my case ..

And for the people that still believe that these are natural forming contrails, on a side project, I have made a breakthrough in personal hygiene and discovered that the odor that you smell on your finger tips when you touch other parts of your body actually comes from your fingertips themselves and developed a product for it. If only I could come up with a catchy name, Finger Fresh? Pinky Perfume? Handy harmony? Sigh ..