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"This is what we would call a tornado outbreak, where you have a storm system which produces a number of tornadoes over a large geographical area," Dan Pydynowski, a senior meteorologist with AccuWeather, was quoted as saying. However, such a large and powerful system in December is highly unusual, and something the region usually experiences in May or April.
"It's certainly not unheard-of," Pydynowski said, "but to have an outbreak of this magnitude, with this many tornado reports -- it's a little unusual for this time of year." Temperatures in Arkansas and Kansas on Friday were "spring weather," and "it was unusually warm, and there was moisture in place," he said.
Even though scientists are observing more clusters, "it is unclear the role that climate change plays," said the report. "For a lot of our questions about climate change and tornadoes, the answer is we don't know," Harold Brooks, a senior research scientist at the National Oceanic and Atmospheric Administration's National Severe Storms Laboratory, was quoted as saying. ■

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