Environmental and Radar Analysis of NWS Tornado Warnings 2016-18

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Randy Jennings

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May 18, 2013
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At this year's NWAS conference, Evan Bentley and @Rich Thompson (SPC), Randy Bowers (Norman WFO), Justin Gibbs (WDTB), and Steve Nelson (Peachtree City WFO) are presenting a poster that looks at environtemental and radar signatures associated with verified and false alarm tornado warnings between 2016 and 2019. Some of the interesting findings include 18.5% of confirmed tornado warnings did not have a TDS and that over 25% of the time LE/EM reports do not verify (public 21%, spotter/chaser/nws employee 13%).

Full poster at:
 

Randy Jennings

Supporter
May 18, 2013
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@rdale You are correct. I was looking at the wrong table when zoomed in typing on my phone. It was 48% of LE/EM that do not confirm vs 40% public and 30% spotter/chader/nws employee.
 

Jeff Duda

Resident meteorological expert
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Oct 7, 2008
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Broomfield, CO
www.meteor.iastate.edu
Wait...so "Storm chaser reported tornado" reports are actually totally bogus 30% of the time? Oh, maybe that comes from them being lumped in with "trained" spotters and NWS employees. Still pretty dumb to see that a "human (with training for this) confirmed tornado touchdown" actually cannot be verified sometimes. Perhaps it is due to extremely weak and very short lived tornadoes not doing any visible damage?