So, weather geeks,,,,what's this?

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brian day
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So, weather geeks,,,,what's this?

Post by brian day »

Taken in Northumberland yesterday afternoon, any idea what cloud formation it is and how it's formed?
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John Wallis
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Post by John Wallis »

It's a rectangmulus I thought you'd known that one Brian :)
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RonDon
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Post by RonDon »

You two no nothing.

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John Wallis
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Post by John Wallis »

Ha Nice one Ron
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Magic carpet cumulus clearly

Post by Graeme Gilroy »

Magic carpet cumulus obviously
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Christine Nicholls
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Post by Christine Nicholls »

Wow, that's amazing, we didn't do clouds like that on my course, is that seriously real or photoshopped?🤔
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Post by Nforster »

You should post that on the cloud appreciation soc Facebook site
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Post by RonDon »

Ho-Ho, Graeme the dreadful, Swivel :twisted:
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ron freeman
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Lenticualr

Post by ron freeman »

Lenticular clouds prevelant 70% of the time in the UK. Our very own Cheviot hills are renowned for them

This is caused by the hills upwind making the air bounce in the unstable layer of air trapped between the stable air below and above ;-)
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Here's ?

Post by ron freeman »

This one is a belta ! free beer for the correct answer
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ron freeman
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Re: Lenticualr

Post by ron freeman »

[quote="ron freeman"
Last edited by ron freeman on Fri Dec 02, 2016 11:16 pm, edited 1 time in total.
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repeat

Post by ron freeman »

repeat
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brian day
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Post by brian day »

Someone else said lenticular on another site, but square? I know how lenticular form and where they form, but this shape would suggest wind from two directions at right angles, is that possible, or probable?
I'm not entirely convinced.
Give me an explanation of the square shape and convince me!
This picture has not been photoshopped or processed in any way, some people know me to well!
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Christine Nicholls
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Post by Christine Nicholls »

1.) cold air advection cloud, which form as cool air blows over large fetches of water
2) In this case an aircraft has moved through a pocket of air with the right conditions for the contrail to form, meaning there is just a short section.

"The wind is blowing at right angles to (ie across) the contrail, and due to the right atmospheric conditions this is causing the ice crystals in that trail to spread outwards

3) YOU MADE IT UP!
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ron freeman
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Post by ron freeman »

brian day wrote:Someone else said lenticular on another site, but square? I know how lenticular form and where they form, but this shape would suggest wind from two directions at right angles, is that possible, or probable?
I'm not entirely convinced.
Give me an explanation of the square shape and convince me!
This picture has not been photoshopped or processed in any way, some people know me to well!
Brian, It looks like two or three wave bars that are stacked up (on top of each other) this would give the square look.
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RonDon
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Post by RonDon »

Hi Ron Freeman. It is a gust front on it's way down to the ground. :idea: :idea: :idea:

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