Is this a dust devil? Took this picture last week at 11,000+ feet....

aphex

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Finally dumped the images from my new digicam, they still need adjustments as i'm still learning what i'm doing..

Anyway, this was taken at a little over 11,000 feet at the top of Izaru Volcano in Costa Rica... The winds would pick up really quickly every 2-3 minutes and these little twisters would spin up the volcanic ash all around us....

http://www.aphexii.com/pics/twister.jpg

Are these what people refer to as dust devils? In the 30+ minutes we were up there, we probably had 15 or so go right over or around us... Freaking painful for your eyes...
 

Viper GTS

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Oct 13, 1999
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Yup, though most don't have enough material to play with (and aren't nearly so visible).

Viper GTS
 
Oct 9, 1999
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i once took some pics of these twisters near bakersfield. I dont know where i kept them. It was from last year, it was in the dry fields, that were being raked for the next season.. awesome sight, brownish yellow against a blue sky.. it was awesome.
 

vi edit

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Oct 28, 1999
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In Northern Arizona between Prescott and Flagstaff I saw a dust devil that was easily 150 yards across.

That's a big freaking dust devil.
 

VirtualLarry

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Aug 25, 2001
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Originally posted by: aphex
http://www.aphexii.com/pics/twister.jpg
Are these what people refer to as dust devils? In the 30+ minutes we were up there, we probably had 15 or so go right over or around us... Freaking painful for your eyes...

Sorry, that actually looks like a smoke contrail, from a recently-launched firework. Looks like some char marks on the pavement below, where it was launched, too.

If it were a real start of or small version of a twister, I don't think that so many people would just be standing around, nonchalauntly, waiting/watching it, I would think that they would be running to hide behind something more substantial.
 

aphex

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Originally posted by: VirtualLarry
Originally posted by: aphex
http://www.aphexii.com/pics/twister.jpg
Are these what people refer to as dust devils? In the 30+ minutes we were up there, we probably had 15 or so go right over or around us... Freaking painful for your eyes...

Sorry, that actually looks like a smoke contrail, from a recently-launched firework. Looks like some char marks on the pavement below, where it was launched, too.

If it were a real start of or small version of a twister, I don't think that so many people would just be standing around, nonchalauntly, waiting/watching it, I would think that they would be running to hide behind something more substantial.

Sorry to inform you but your 100% wrong.

Here is the same devil a few seconds earlier, right after it spun up;
http://aphexii.com/pics/t0.jpg

Thats not char marks, its volcanic ash being stirred up, which at times, looks black instead of grey. Also, the twisters spun up real fast, that one probably lasted 5 or 6 seconds, eye stinging but not enough to have to run from.

And some others;
http://aphexii.com/pics/t1.jpg
http://aphexii.com/pics/t2.jpg
http://aphexii.com/pics/t3.jpg
 

Eli

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Oct 9, 1999
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Originally posted by: VirtualLarry
Originally posted by: aphex
http://www.aphexii.com/pics/twister.jpg
Are these what people refer to as dust devils? In the 30+ minutes we were up there, we probably had 15 or so go right over or around us... Freaking painful for your eyes...

Sorry, that actually looks like a smoke contrail, from a recently-launched firework. Looks like some char marks on the pavement below, where it was launched, too.

If it were a real start of or small version of a twister, I don't think that so many people would just be standing around, nonchalauntly, waiting/watching it, I would think that they would be running to hide behind something more substantial.
LMAO..

Someone's never seen a dust devil before.
 

Nightfall

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Nov 16, 1999
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Well, I have never seen a Dust Devil either. First time for me too. Maybe it is because I live in MI and haven't been out west before. Furthest I have been out that direction would be Texas. :)
 

VirtualLarry

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Aug 25, 2001
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Originally posted by: Eli
Someone's never seen a dust devil before.
No, actually, I haven't. I thought that aphex was trying to pull a funny on the ATOT crowd. Guess not... that's wild. I've seen "vortexes" form, around entrances/corners to brick buildings, when I was younger, but they were never visibly-defined like that, they just made the trash on the ground swirl around in a circle for a little while.

So I take it, that a "dust devil", is not simply a smaller version of, or a precursor to, a sort of tornado? IOW, it doesn't require "running for the hills" if you ever see one?
 

aphex

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Originally posted by: OfficeLinebacker
That's so cool.

I lived in CR for three years and never went to Irazu.

You live there?

No, i was down visiting family for the past week...