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What are these swirly clouds?

What are these swirly clouds?

Forums › Cloud Identification Help › What are these swirly clouds?

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    • April 7, 2021 at 10:32 pm #479776
      Julia Long avatarJulia Long
      Participant

      Cool clouds with a swirl, caught my eye out my home office window. Had to run out and take a picture!1C0D8E99-3487-4AFF-AA2B-C0331584BC43CB00A133-782A-4A17-94E2-70CB3B51AF12

    • April 11, 2021 at 8:45 pm #480439
      Hans Stocker avatarHans Stocker
      Participant

      Julia, this is a difficult one in my opinion.

      At the bottom of the first one I see cirrus with its large horizontal streaks. they are also on the second one bottom right. About this I am arther sure.
      Initially I thought I saw mainly altocumulus on the first picture but taking the cirrus as reference for the height of the spotted clouds cirrocumulus might fit better and / or cirrus spissatus.
      On the second one there is this lenticular patch bottom left:  cirrocumulus lenticularis in my opinion.
      So in the end I like to think they are all on the same level and then I tend to Cirrocumulus, Cirrus spissatus and Cirrocumulus lenticularis.

      This is my attempt but I  look forward for different opinions.

      And above all very nice eye-catching swirls indeed.

    • April 11, 2021 at 9:33 pm #480443
      Julia Long avatarJulia Long
      Participant

      Thanks Hans!

    • May 4, 2021 at 12:40 am #484066
      Rob Thompson avatarRob Thompson
      Participant

      When I see these type of high clouds I often go to windy.com and set the pressure/altitude slider (on the right side of the screen) to about 200hPa (about 40,000 feet). You can then see the Jetstream winds and these clouds are often just around the points where the Jetstream has twists or turns.

      Rob

      • May 19, 2021 at 11:44 pm #486569
        Howard Brown avatarHoward Brown
        Participant

        Jetstream

        In The Times, UK, today the Met Office said “There is a warm side to the jet stream and a cold side and the southward shift leaves us on its cold side…”

        The above was attached to a picture by Rachel Baker of Lake Pier in Poole, Dorset, UK, but not the Twitter one below. I wonder if it is CAS or Twitter that is preventing this showing as a link because I am not logged in to Twitter? Likewise another photo of hers on Facebook.

        Rachel Baker on Twitter: “Purple haze sunset at Lake Pier, Poole @StormHour #potw #stormhour https://t.co/CkvW6WKsZW” / Twitter

        or even Google

        rachel baker Lake Pier – Google Search

        Must be CAS???

        Having logged out and back in, there is now a link showing but when you click on it Twitter says it does not exist!!!!!!!!

         

    • May 20, 2021 at 11:22 pm #486725
      Howard Brown avatarHoward Brown
      Participant

      Britain gets cold shoulder as Russians roast in 30C | News | The Times

      That should be a link with a fine picture and further words on jetstreams. In the hard copy there is an interesting jet stream diagram also but not on-line. More Grrr.

    • May 21, 2021 at 1:21 am #486738
      Rob Thompson avatarRob Thompson
      Participant

      The bends in the Jetstream (Roxby Waves) seem to be getting bigger and remaining semi stationary much more often these days. The extreme weather before and after the bends just hangs in there for a long time!

      Rob

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