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Meteorological curiosity - "volcano tornado"

  1. Sep 11, 2014 #1

    Dotini

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    Viewers will be amused at the slender vortex snaking 3300' above the Iceland volcano, seen here in infrared video. Said to be similar to a "fire tornado", the Icelandic Met Office officially refers to the strange phenomenon as "wind anomalies from thermal convection."

    http://www.livescience.com/47742-volcano-tornado-iceland-eruption-holuhraun.html
    "We haven't seen anything like this before"
     
  2. jcsd
  3. Sep 11, 2014 #2

    davenn

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    cool ! :)

    don't think I have seen one related to a volcano before ... seen too many videos to remember haha

    but these are quite common in bush fires we see here in Australia ... as commented, called firenadoes
    I suspect the formation of them is very similar

    cheers
    Dave
     
  4. Jun 9, 2015 #3

    Dotini

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    Another meteorological curiosity - an amazing supercell with two simultaneous tornadoes. The one on the left is said anticyclonic, the one on the right cyclonic.

    simla-supercell-kelly-delay.jpg
    This phenomenal storm, with two tornadoes spinning simultaneously, was photographed late last week near Simla, Colo. (Kelly DeLay)

    http://www.washingtonpost.com/blogs...e-amazing-supercell-two-incredible-tornadoes/


    Simultaneous aurora and lightning, from today's space weather.com
    mn_strip.jpg

    "I've never seen auroras and lightning visible side by side before," marvels Chester. "These photos were taken between 2 and 3 am on Monday, June 8th."

    At about the same time in Hartford, Wisconsin, Jake Stehli witnessed a similar display. "The auroras were visible to the naked eye with lightning in a thunderhead on the horizon as well," he says.
     
    Last edited: Jun 9, 2015
  5. Jun 9, 2015 #4

    davenn

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    awesome storm .... have 2 friends that have just got home to Oz from 3 weeks in the USA stormchasing. I just haven't had the money, health or available annual leave
    to travel over there for the last few years :frown: I so miss my chase trips to the USA

    twin and multi tornadoes for a single cell are common, not sure about the counter circulations tho ?
    The other wild scenario is when a main tornado funnel starts producing multiple vortices around it that sometimes become large enough to be called a signif tornados in their own right ... then we have "sisters"

    a pic from my chaser friend Reed Timmer ...

    Tornado-multivortex.jpg

    dunno who this one is from ?? ... would credit if I could ( not mine)

    Multi-tornado.png


    Dave
     
  6. Jun 21, 2015 #5
    I expect the Australian ones go round the other way though.
     
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