Cloud Phenomena

[Swampy]

Ok. So I'm out in the desert and look up to see this. Now, I'm used to seeing planes leaving white on a blue sky, so when I saw this, I was baffled on how this could have happened. Maybe HorsePunchKid can shed some light on this... This is a section of the sky at 150mm. Clouds parted like something shot through them. But I really doubt a plane could have caused this as the cloud layer is much thicker than what a plane could disturb to the eye from the ground.

Any ideas?

[sandman]

0K you've put this under challenges , so the challenge is .to find strange shapes in the clouds?
That'll mean walking around all day with my eyes up in the sky , wonder how many lamp posts i'll demolish doing this one ..??

Brian

[Swampy]

0K you've put this under challenges , so the challenge is .to find strange shapes in the clouds?
That'll mean walking around all day with my eyes up in the sky , wonder how many lamp posts i'll demolish doing this one ..??

Brian

I'm sure looking up while walking around won't be any worse than your normal walking Brian. I'm sure you take out enough lamp posts just about every evening. :beerchug: :beerchug: :beerchug: :beerchug: :beerchug:

The challenge is, to define what causes the pathway carved into this cloud formation.

[sandman]

Wife reckons i walk around with my head in the clouds anyway .

So this challenge is about one shot , YOUR shot , typical..

Well your sure to get some imformative answers about cirrus formations and upper strata depressions , not to mention the baromic pressure that different isobars bring the to party .
ME? i have'nt a clue , giant zipper?

Brian

try this

http://www.yessy.com/azcmlj5/cloud.html

[Wilm]

Bryan,

that could be a rotor !

( If the following is completley not understandable in English I have to apologize. This is more meteological than my expression might help )

Explantation:
If the air, which went upwards the mountain is very dry, clouds will appear very late, near the hilltop. The air raised dry-adiabatic with -1°C/300ft. After reaching the dewpoint the air cools down with only -0.6°C/300ft. Clouds appear. The wind is pressing them over the hilltop to the other side. Over there the clouds are falling down while increasing their temperature with 0.6°C/300ft. Over a desert, the air is very dry and hot. This air also raises with -1°C/300ft. In the area both "airs" meet, there is falling air with +0.6°C/300ft and raising air with 1°C/300ft. The air beginns to rotate horizontally.
If the hilltop is very long you can expect a long line of these rotors.

Coming into these turbulances with a tiny aircraft like a Cessna 172 this could be your last turbulance in your life.

Hope my explantation is for 10% understandable ( no pilots-dictionary left )


:cheers:
Wilm ( who flew a Cessna 172 quite often in the past )

[Wilm]

I have forgotten to mention:

The meteological name for these clouds are

Altocumulus Lenticularis


:cheers:
Wilm