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National Weather Radar Facility
The CSU-CHILL National Weather Radar Facility, located in Greeley, CO, is an advanced, transportable dual-polarized dual-wavelength (S- and X-band) weather radar system. The facility is operated by Colorado State University, under the sponsorship of the National Science Foundation and the University.

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CSU-CHILL reflectivity data from a 1.9 deg elevation angle PPI sweep through an isolated hailstorm. A three body scattering signature extends radially down range from the storm. Time lapse loops of the reflectivity and differential reflectivity data at this elevation angle have been assembled. (Full Article...)

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Intense thunderstorm precipitation. Intense thunderstorm precipitation.

CSU-CHILL RHI scan through a thunderstorm located ~30 km east of the radar. S-band one way specific propagation differential phase (Kdp) exceeds 5 degrees per km near the surface in the echo core due to the presence of many oblate raindrops and small, melting hailstones.

Photo credit: Patrick Kennedy
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