To a forecaster, summer is marked by expansion of the Bermuda high into the Southeast United States and the recession of the jet stream northward into Canada. While the majority of summer weather systems take place in Canada (see Forecast Center in the September/October 2007 issue of Weatherwise), significant thunderstorm events regularly occur in the Great Lakes and Midwest region. Tropical cyclones become the primary concern in the Southern United States later in the summer, and even the summer monsoon begins to affect Arizona (see Forecast Center in the September/October 2003 issue of Weatherwise). This issue takes a look at a particularly damaging storm event.
TIM VASQUEZ is a former Air Force forecaster and author of Digital Atmosphere, a weather forecasting software program. He lives near Norman, Oklahoma, where he keeps busy as a weather consultant and software developer.