EF-5 Tornado Damage (IMAGE)

National Institute of Standards and Technology (NIST)

EF-5 Tornado Damage

Caption

The power of an EF-5 tornado is evident in this photo of a truck wrapped around a utility pole in the aftermath of a May 1999 twister in Oklahoma in which wind speeds of more than 500 kilometers (300 miles) per hour were recorded. New code changes based on recommendations from NIST's Joplin, Mo., tornado study will help protect building occupants in areas where such storms are most likely to occur.

Credit

National Severe Storms Laboratory, NOAA

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