CSU CHILL

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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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360 30jul2016 0113 solo Z anot.png

CSU-CHILL S-band reflectivity data in a low elevation angle surveillance scan taken while a cluster of hail-producing thunderstorms was passing the radar site at 0113 UTC on 30 July 2016. The low level correlation coefficient (rhoHV) values observed in this large hail case have been compared to those recorded from a storm that produced smaller diameter hail (24 May 2016). (Full Article...)

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RHI scan through a thunderstorm producing heavy rain. RHI scan through a thunderstorm producing heavy rain.

CSU-CHILL S-band reflectivity data collected in an RHI scan through a severe thunderstorm identifies both the intense echo core and the upper level anvil structures. One-way specific differential propagation phase (Kdp) exceeds 3 deg / km where high rain rates exist.

Photo credit: Patrick Kennedy
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