| What do you do for a living? buy extendacal Lightning flashes some 30 million times per year in the continental United States, mostly from cloud to cloud, said Richard Orville, professor at Texas A&M University's Department of Atmospheric Sciences. About 10 percent of lightning hits the ground, where it can travel through trees, soil, plumbing and electric wiring. Those cloud-to-cloud strikes start about 15 minutes before the ground strikes and thunder will roar, giving people a heads-up on when to seek shelter, Orville said. "It's not a hard rule, there are exceptions to it. But in terms of a guideline, it works." The National Weather Service advises people to stay indoors 30 minutes after that first flash of lightning or clap of thunder.
viagra pidr In July 2010, a grizzly killed a camper and injured two others in a national forest in Montana near Yellowstone. The following year, two hikers were fatally mauled at the park in separate attacks that marked the first such deaths since 1986.
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