Finding search terms for a scene in mind

If you have a question, don't care what it is ~ If you need a hand, We can assure you this ~ We can help

Moderator: S2k Moderators

Message
Author
404UserNotFound
Tropical Low
Tropical Low
Posts: 42
Joined: Sun Dec 01, 2013 6:21 pm
Location: Near Antipodes of Crozet Islands

Finding search terms for a scene in mind

#1 Postby 404UserNotFound » Fri Jul 06, 2018 8:04 pm

I've had a particularly vivid memory of a loosely meteorological scene that I witnessed, but I've been having trouble finding the terms to search for more examples like it.

It was a sunny April afternoon several years ago; the winds were either calm or light and variable. While waiting for a bus, I was watching an empty lot strewn with tiny flower petals. Occasionally, tiny whirlwinds would form on the asphalt, rotating in either direction and carrying petals as they went along, and eventually dissipating when they reached the edge of the lot, or on their own. (When I say tiny, I really do mean tiny: these whirlwinds were short and squat, definitely no larger than a foot in any direction, and probably no larger than six inches in height, at least for the visible portion denoted by lofted flower petals.)

I do know that what I am looking for involves convection and vorticity, but what I am finding instead (when searching for videos of simulations) are videos of side views of convection, thick 3D convection, vorticity from turbulence (which decays), and localized heat sources, when what I am really looking for is a top-down 2D or narrow 3D view with a globalized heat source. Additionally, the whirlwinds in the non-simulated videos are all too big.

Are there any better search terms that I should be using? (This would help when the storm-tracking gets to be a little too slow for my tastes.)
0 likes   
Please note: Never take any statements I make about forecasts at face value, as I am nowhere near professional at that.

tolakram
Admin
Admin
Posts: 14219
Age: 55
Joined: Sun Aug 27, 2006 8:23 pm
Location: Florence, KY (name is Mark)

Re: Finding search terms for a scene in mind

#2 Postby tolakram » Fri Jul 06, 2018 9:30 pm

Dust devils maybe?

Nice pics, but no modeling info, unfortunately. https://en.wikipedia.org/wiki/Dust_devil

micro whirlwind gets microburst.

http://glossary.ametsoc.org/wiki/Dust_devil

Not sure I fully understand your question so this might not be helpful ... at all. :)
0 likes   
M a r k
- - - - -
Join us in chat: Storm2K Chatroom Invite. Android and IOS apps also available.

The posts in this forum are NOT official forecasts and should not be used as such. Posts are NOT endorsed by any professional institution or STORM2K.org. For official information and forecasts, please refer to NHC and NWS products.


Return to “Got a question? I'm listening”

Who is online

Users browsing this forum: No registered users and 1 guest