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.

Featured Article

7may2016 1942 VCHILL ovrview anot.png

A small thunderstorm that affected the Broomfield, Colorado area during the early afternoon hours of 7 May 2016 is seen in the reflectivity data collected in a low elevation angle CSU-CHILL PPI scan. Horizontal winds synthesized from CHILL and KFTG radial velocity data showed well-defined convergence at near-surface levels in the vicinity of this thunderstorm. (Full Article...)

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Updraft-related radial velocity patterns in an RHI scan through a thunderstorm. Updraft-related radial velocity patterns in an RHI scan through a thunderstorm.

The coupling of low-level convergence and strong storm-top divergence implies the existence of upward air motions in the vicinity of a thunderstorm reflectivity core.

Photo credit: Patrick Kennedy
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