© 20min.ch
Comment: There are scientific explanations for how these kinds of clouds form, but what is notable is that they're not a common sight and their appearance points to an atmosphere that is undergoing significant cooling; and this is just one of an increasing number of examples.
How did these eerie cylindrical clouds formed in the sky over the Eiger in the Swiss Alps? via
The eerie sky formation hovered over the Eiger, a 3,967-metre (13,015 ft) mountain of the Bernese Alps.
This picture shows the two mysterious cylindrical clouds in the sky over the Swiss Alps on March 10, 2021. via 20min.ch
One of the two cloud ring disappeared after a few minutes. However, the second drifted about 15 minutes in the sky.
© 20min.ch
A MeteoNews specialist confirmed that such a phenomenon is NOT NATURAL.
In the area of the sighting, there is a military airport. Did jets formed those two distinct circles?
Comment: As noted above, it's more likely that this is a natural, albeit unusual, occurrence.
When an aircraft is flying at supersonic speed, it can be particularly difficult to follow it from the ground and with the naked eye. Moreover, condensation trails do not appear until a few seconds after it has passed. In calm weather, traces may remain visible for up to 15 minutes.
© 20min.ch
The military airport of Meiringen confirms that flights took place at the time in question, but didn't want to say more... [20min]
Now subscribe to this blog to get more amazing news curated just for you right in your inbox on a daily basis (here an example of our new newsletter).
You can also follow us on Facebook and/ or Twitter. And, by the way you can also make a donation through Paypal. Thank you!
You should really subscribe to QFiles. You will get very interesting information about strange events around the world.
From Wikipedia, the free encyclopedia
fallstreak hole (also known as a cavum,[1] hole punch cloud, punch hole cloud, skypunch, cloud canal or cloud hole) is a large gap, usually circular or elliptical, that can appear in cirrocumulus or altocumulus clouds. Such holes are formed when the water temperature in the clouds is below freezing, but the water, in a supercooled state, has not frozen yet due to the lack of ice nucleation. When ice crystals do form, a domino effect is set off due to the Bergeron process, causing the water droplets around the crystals to evaporate: this leaves a large, often circular, hole in the cloud.[2]It is thought that the introduction of large numbers of tiny ice crystals into the cloud layer sets off this domino effect of fusion which creates the hole. The ice crystals can be formed by passing aircraft, which often have a large reduction in pressure behind the wing- or propeller-tips. This cools the air very quickly, and can produce a ribbon of ice crystals trailing in the aircraft's wake. These ice crystals find themselves surrounded by droplets, and grow quickly by the Bergeron process, causing the droplets to evaporate and creating a hole with brush-like streaks of ice crystals below it....