The weather is going to be very interesting over the next few days with chances of severe weather, including perhaps tornadoes, in the forecast. October is not a favored time of year for tornado warnings as shown by the featured chart. The chart shows the frequency of having at least one tornado warning issued for the given week of the year. For comparison, values for four states are plotted. Of course Texas is a very large state in Tornado Alley which helps its numbers. It is kind of interesting to compare the annual cycle for Iowa vs Oklahoma and even Alabama. Tornado Warning frequencies in Iowa drop to zero during the winter season while Alabama has the occasional event thanks to its proximity to the Gulf of Mexico. Please note that this type of comparison does not account for the total number of warnings issued but just attempts to diagnose annual climatology.

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Tags:   warnings   tornado