Rolling Doppler

I admit that I am a weather geek. Regardless, how cool is this? Rapid-Scan Doppler on Wheels

A new Doppler radar instrument that can scan tornadoes every five to 10 seconds is prowling the Great Plains this spring in search of its first close-up twister. Newly enhanced for season-long thunderstorm tracking, the radar promises the most complete picture to date of tornado evolution, allowing for better tornado prediction in the future.

Known as the Rapid-Scan Doppler on Wheels (DOW), the instrument was deployed from a temporary base in Hays, Kan., by scientist Joshua Wurman of the Center for Severe Weather Research. Engineers at the National Center for Atmospheric Research (NCAR) in Boulder, Colo., helped build the DOW, which is funded by the National Science Foundation (NSF).