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NOAA-SEVERE WEATHER

NOAA-SEVERE WEATHER

Thunderstorms, Tornadoes, and Lightning - Nature’s most violent storms. Thunderstorms affect relatively small areas when compared with hurricanes and winter storms. The typical thunderstorm is 15 miles in diameter and lasts an average of 30 minutes. Despite their small size, ALL thunderstorms are dangerous! Of the estimated 100,000 thunderstorms that occur each year in the United States, about 10 percent are classified as severe.

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