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The Severe Weather Threat is not Limited to Tornadoes

The first 15 slides have provided evidence that highway overpasses offer, at best, questionable tornado shelter. However, tornadoes are not the only threat to personal safety and life from severe thunderstorms! Overpasses also offer questionable shelter from other severe weather phenomena. Slides 17, 18 and 19 briefly summarize 4 events that illustrate the additional threats from severe thunderstorms in addition to tornadoes and how they can also lead to potentially life threatening situations when people seek shelter under highway overpasses. It should be noted that there are countless other examples of this, these are simply 4 arbitrarily chosen events with which the lead author is most familiar. Despite the fact that 3 of these 4 events did involve a tornado, the problems under and around overpasses during these events were caused by the other severe weather phenomena - hail, wind and flash flooding.

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