Horseshoe Vortex?
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- This topic has 4 replies, 4 voices, and was last updated 6 years, 6 months ago by George Preoteasa.
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May 30, 2018 at 6:01 pm #277597Mischa KuczynskiParticipant
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Hello!Does anyone know if these clouds on the left are little horseshoe vortices? Still hoping to spot one someday!
Thanks!
Mischa
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May 30, 2018 at 9:29 pm #277623Michael LerchParticipant
Mischa..Hello, Keep hoping. The clouds on the left of the picture are decaying clouds. They are coming apart, disintegrating from columns of heat . Take a look at the Gallery for Horseshoe Vortex clouds. Great examples are there..My experiences tell me to look for HV’s when there is unstable conditions. They usually take shape during breezy/windy conditions near or in between edges of cells. But there are no hard rules except the physics that creates them…Keep an eye open for them and with some patience you will witness one. You will know it when you do. Good Luck.
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May 30, 2018 at 10:58 pm #277629Gavin Pretor-PinneyKeymaster
Hi, Mischa.
I agree with Michael that these are not horseshoe vortex clouds. I don’t know where you took the image, but I wonder if it was near mountains? Another explanation for their formation might be the turbulent region of flow downwind of mountain peaks. This can sometimes form sort of ‘eyebrow’ clouds (not an official term!). These look a bit like what you captured. Whatever their cause, I think you’d find that if you saw these in time-lapse they’d not show the rotating vortex movement associated with a horseshoe vortex cloud.
You’ll spot one eventually, I promise! Great meeting you at the talk in Tiburon.
Gavin
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May 31, 2018 at 12:15 am #277636Mischa KuczynskiParticipant
Ah! This was taken in Davis, which lies in a large valley between two mountain ranges. Looks like I will have to keep my eyes peeled for that horseshoe vortex.
Thank you for the information, Michael and Gavin! And so good to meet you as well!
Mischa
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June 3, 2018 at 2:55 am #278133George PreoteasaParticipant
Mischa, keep looking. I thought I’d never see one and then I saw two in two consecutive days.
Speaking of eyebrow clouds, I have some or my own, but this time lapse on the CAS site is very revealing. It looks like these clouds are a variety of the lenticularis;
Here is my shot, in New York City, not a place known for its mountains.
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