One Tornado Or Two?

Wednesday, November 13, 2019


Circumstances from the tornado intercept in Johnson County Iowa on Saturday, May 24, 2019 left me a little bit in the dark for a while as to whether we had witnessed one tornado or two during the event. In the image above, there is no doubt, as a violent twister is shown on the ground to our northwest from this spotting position on 540th Street SW about 3.4 miles WSW of Hills, Iowa at 6:48 pm CDT.


6:55 pm. Still in the same spotting position and looking NNE. The condensation funnel appears to have lifted, but ground circulation is still evident.


7:03 pm and mobile now on Bayertown Road SW, about 3.9 miles west of Hills. Same parent cloud, but now with just a ragged lowering where the tornado had been.


A minute later and now the cloud sports the ragged wall cloud AND a funnel, which briefly touched down as I caught a glimpse of its ground debris while we were mobile. The fact that I had not previously reviewed pic number three--which shows no funnel less than a minute before the image above--is a good indication that these were in fact two separate tornadoes (albeit cyclic, from the same parent cloud). The original confusion began as a consequence of the disengagement of our spotting position and relocation to the road. Nikon D7200 DSLR camera.

0 comments:

Post a Comment

  © Blogger template On The Road by Ourblogtemplates.com 2009

Back to TOP