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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.

Featured Article

6sept2018 205714 swp4 XB z ppi anot.png

CSU-CHILL X-band reflectivity data in a 4.5 degree elevation PPI scan of afternoon thunderstorms on 6 September 2018. RHI scans at 3 minute time intervals documented the development of a microburst beneath the indicated storm. (Full Article...)

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Zdr variations in a rain shower Zdr variations in a rain shower

CSU-CHILL X-band RHI scan data with horizontal polarization reflectivity on top and differential reflectivity (Zdr) on the bottom. The most positive Zdr values occur in the near range edge of the shower where new precipitation shafts are developing.

Photo credit: Patrick Kennedy
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