[Gail Holt]

I too think they are contrails.  Mabye a couple of RAF jets doing a sunset aerobatic manoeuvre together.  The sun is setting in this photo so I thought about how the clouds are being illuminated.  Have a look at the thin wisps of cirrus around the contrails… both they and the contrails are pink.  An explanation for this is that the cirrus and contrails are high up in the atmosphere and are being lit on the underneath by the setting sun rays which, having further to travel, are the longer wave red rays. The much lower stratocumulus are completely black as they are in shadow, although if you look carefully you can see the distant stratocumulus clouds do also have a pink tinge on the top of the clouds where they are also catching the last rays of the setting sun. Maybe?

Gail

[Gail Holt]

Hi , Cirrocumulus I think. Kind Regards,

Gail

[Gail Holt]

mammatus not mammals! Dam autocorrect…… :(

[Gail Holt]

Yes, these are mamma (or mammals) which hang from the end of a cumulonimbus storm cloud which has passed.

Gail

[Gail Holt]

Hi, IMHO I don’t think it’s Volutus… it doesn’t appear to be rolling and volutus is a roll cloud.  It may just be a long cumulus cloud but definitely with virga.

Cheers

Gail

[Gail Holt]

Hi Marie, beautiful clouds indeed! I think the first 2 photos, especially the second one, are Vertebratus. Happy to be corrected.

Not sure about the others but very nice indeed.

Kind regards, Gail

[Gail Holt]

Lovely indeed… I think it is Altocumulus Floccus.  I’m unsure whether the little ‘silkworm’ in the middle right of the picture can be classed as Vertebratus.

Kind regards,

Gail

[Gail Holt]

Hi Gail,

Yes there is. Go to your App Store and download the Cloud Appreciation Society Cloud-a-Day app.  It has an AI cloud identifier function which is very useful.

Kind regards,

Gail

[Gail Holt]

Thanks all, especially Hans for the diagram.

[Gail Holt]

Ahhhh… thank you so much.  I was thinking of geometric angle degrees not celestial astronomic degrees. It now all makes sense… I should have twigged being a (very) amateur astronomer.

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