Many of us enjoy gazing into a summer sky, but across Minnesota, a select band of people are staring harder than most. They're not taking in a sunset or star-gazing, but watching for thunderstorms and tornados. These individuals are weather spotters...and whenever dark clouds begin to move in from the west, they prepare to report in to the National Weather Service on whatever storms are coming their way. Minnesota Public Radio's Gretchen Lehmann reports.