vapour trails?

[jerseycowsman]

Ok weather experts, yesterday we had brilliant blue skies and no vapour trails, even though I could see the jets going over. Then today, with brilliant blue skies again, we have plenty of vapour trails crossing the sky. Does anyone know why this is?

 

[Frank-the-Wool]

No wind in the upper atmosphere?

 

[Gong Farmer]

Assuming they aren't chemtrails, isn't the traditional explanation that they are ice crystals formed around particulates in the exhaust gases? Maybe all planes were flying low or some other reason it wasn't cold enough up there.

 

[wr.]

Ok weather experts, yesterday we had brilliant blue skies and no vapour trails, even though I could see the jets going over. Then today, with brilliant blue skies again, we have plenty of vapour trails crossing the sky. Does anyone know why this is?

Doesn't bode well I'm afraid.
It shows that we always get some sort of weather this time of the year

 

[Kidds]

Temperature and humidity, same as seeing your breath in winter but not summer.

 

[Y Fan Wen]

During ww2 the camera recon. planes used to gradually get higher until they made a trail and then drop down to just below. That way, they weren't drawing attention to themselves and could not be bounced by unfriendlies from above.
The level was different every day.

 

[jerseycowsman]

The trails were there this morning, and now they have vanished again.
I just can't remember there being times when there aren't trails!

 

[Wellytrack]

The Government controls our weather - obviously.







* Even though they didn't manage to rig the referendum

 

[Pilatus]

I see vapor trails are on the increase after lockdown. Any one travelled long haul recently, as wandering if one has to wear a mask while on an aircraft,are the seats all full ???

 

[Widgetone]

During ww2 the camera recon. planes used to gradually get higher until they made a trail and then drop down to just below. That way, they weren't drawing attention to themselves and could not be bounced by unfriendlies from above.
The level was different every day.

Hun in the sun - is that racist?