IEM Daily Feature
Thursday, 15 December 2022

Another wild December

Posted: 15 Dec 2022 05:30 AM

December 2022 is picking up where December 2021 left off and producing plenty of severe convective weather. Another significant tornado outbreak during December happened yesterday over the southern end of the so-called "Dixie Alley". The NWS issued 106 tornado warnings yesterday, which matches the previous December record set on 10 December 2021. The featured chart presents the number of NWS Tornado Warnings nationwide by month since 1986. A big caveat is that data quality decreases prior to 2001 and really decreases as you go back into the early 1990s. That aside, it is interesting to compare the monthly totals and note that these past two Decembers saw more warnings than in the associated July's of each year. Thankfully, Iowa has yet to have a December repeat this year of what happened here last year on this date, 15 December 2021!

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