Most large convection columns of smoke rising over large or intense wildfires rotate to some degree. In the video below filmed near Melbourne, Australia, the speed of the playback has been increased, making it easier to notice the rotation. To confirm this, check out the car driving by at what appears to be over 250 miles per hour.
— Mike @ StormCatMedia (@StormCatMedia) March 2, 2019
Thanks Mike. Very interesting!
As a bonus, here is another recent convection column in Australia — a very large one with condensation on top, referred to as a pyrocumulus cloud.
SCC social media team is signing off after a busy day. Warnings will continue on this account & https://t.co/cLwumJS5eN
We’ll be back at around 7am. #VicFires
Photo credit: Paul Schoffelmeer pic.twitter.com/jCfjP6BgcY
— CFA Updates (@CFA_Updates) March 2, 2019