Advanced Hydrologic Prediction Service (AHOPS)
Tennessee River













Interesting Weather Facts
FASTEST WIND SPEED RECORDED
At 13:21 on 12 April 1934, the extreme wind speed value of 231 mph originating out of the southeast was recorded at Mount Washington, NH which, to date, holds the record for fastest wind speed in the U.S.. That stood as the world record for 62 years, until the highest wind speed, not related to tornadoes, ever recorded happened during the passage of Tropical Cyclone Olivia on 10 April 1996: an automatic weather station on Barrow Island, Australia, registered a maximum wind gust of 408 km/h (220 kn; 253 mph; 113 m/s). This would prove to be the highest natural surface wind velocity ever officially recorded by means of an anemometer, anywhere in the world.

Observed by a Doppler On Wheels radar unit in a tornado near Oklahoma City, Oklahoma on 3 May 1999, a 3-second gust registered at 301±20 mph (484±32 km/h).