Bill Gallus, an Iowa State storm expert (and chaser), was as surprised as anybody by the Aug. 10 derecho that blew across Iowa and the Midwest. He expects researchers will take a good look at why the violent, straight-line winds didn’t show up in forecasts. And does a warmer climate mean more of these storms are coming? Gallus said it’s hard to say for several reasons, including the fact there are too few of the storms to establish much of a trend line.
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