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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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29jun2007 hail anot.png

High time resolution PPI scans were taken while hail signatures developed at low elevation angles in a thunderstorm. The specific differential propagation phase ($ K_{dp} $) values did not change significantly in the hail area.(more)

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Pileus clouds Pileus clouds

Pileus clouds developed above rapidly growing cumulus tops observed from the CSU-CHILL radar site at 2316 UTC on 11 July 2009.

Photo credit: Pat Kennedy
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