[diogenes ghost]

".....clocked winds at 318mph."

Really?

I doubt any anemometer could measure that high.

Where, and by whom, was this clocked?

[NonValueAdded]

not sure of that specific number but throughout the storm the weathermen were using doppler radar to estimate wind speed.

[muawiyah]

Done regularly with radar

[redgolum]

Radar.

Never seen one that big, but back home that is how some of the speeds were calculated.

Dear God.

[Moose4]

Doppler radar has the ability to measure approximate wind speeds. Tornadoes have very distinctive echoes on Doppler (if they can electronically filter out the radar image of the debris ball if it’s on the ground) and the wind speed mode of the radar can generally give a pretty close estimate of actual speeds, at least higher off the ground.

}:-)4

[xjcsa]

Measured just above the ground by nearby mobile radar. The facts are well-known and not in dispute.

[LaRueLaDue]

".....clocked winds at 318mph." Really? I doubt any anemometer could measure that high. Where, and by whom, was this clocked?

Moore Oklahoma, National Weather Service (I think), 1999, Moore Oklahoma EF5 tornado. Look it up... You are on the internet, right?

[DoughtyOne]

http://usatoday30.usatoday.com/weather/tornado/wtwur318.htm