NIU researchers say twisters occurring from midnight to dawn are …

People are more likely to be in structures that are more susceptible to damage , such as single-family homes and mobile or manufactured homes as opposed to schools and large office or workplace buildings. (Nearly 61 percent of tornado … In fact, while the “ tornado alley” region of the Great Plains boasts the most frequent occurrence of tornadoes , most tornado fatalities occur in the mid-South region, which includes parts of Arkansas, Tennessee, Alabama and Mississippi. …

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NIU researchers say twisters occurring from midnight to dawn are …