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RISCell Development and Merger in an Illinois Thunderstorm Observed by Doppler Radar
Publisher: American Meteorological Society
Abstract: A reflectivity and triple-Doppler radar study of the development of several cells and their successive union within a nonsevere thunderstorm is presented. Two characteristic separations were found between the newly formed ...
S-Band Dual-Polarization Radar Observations of Winter Storms
Publisher: American Meteorological Society
Abstract: his study is based on analyses of dual-polarization radar observations made by the 11-cm-wavelength Colorado State University?University of Chicago?Illinois State Water Survey (CSU?CHILL) system during four significant ...
Dual-Doppler and Multiparameter Radar Observations of a Bow-Echo Hailstorm
Publisher: American Meteorological Society
Abstract: During the afternoon and evening hours of 23 May 1991 a hail-producing multicellular severe thunderstorm developed near Denver, Colorado, and tracked eastward for more than 100 km. Along this path, hailstone diameters of ...
A Case Study of the Origin of Hail in a Multicell Thunderstorm Using In Situ Aircraft and Polarimetric Radar Data
Publisher: American Meteorological Society
Abstract: An armored T-28 research aircraft made direct observations of the hydrometeors present at approximately the ?3°C temperature level in the inflow region of a multicell thunderstorm. During the penetration, both the Colorado ...
Performance of the Hail Differential Reflectivity (HDR) Polarimetric Radar Hail Indicator
Publisher: American Meteorological Society
Abstract: A series of poststorm surveys were conducted in the wake of hailstorms observed by the Colorado State University?University of Chicago?Illinois State Water Survey (CSU-CHILL) S-Band polarimetric radar. Information on hail ...
Single-Doppler Radar Observations of a Mini-Supercell Tornadic Thunderstorm
Publisher: American Meteorological Society
Abstract: During the early evening hours of 19 May 1989, the CHILL 10-cm Doppler weather radar observed most of the lifetime of an unusually small tornadic thunderstorm. Throughout the event, the parent thunderstorm echo top remained ...
Use of the CSU–CHILL Radar in Radar Meteorology Education at Colorado State University
Publisher: American Meteorological Society
Abstract: A recent example illustrating the use of the CSU?CHILL Doppler radar in a graduate-level course in radar meteorology at Colorado State University (CSU) is described. In addition to providing students in the Department of ...
Experimentally Based Estimates of Relations between X-Band Radar Signal Attenuation Characteristics and Differential Phase in Rain
Publisher: American Meteorological Society
Abstract: orrecting observed polarimetric radar variables for attenuation and differential attenuation effects in rain is important for meteorological applications involving measurements at attenuating frequencies such as those at ...
Observations of the 14 July 2011 Fort Collins Hailstorm: Implications for WSR-88D-Based Hail Detection and Warnings
Publisher: American Meteorological Society
Abstract: he issuance of timely warnings for the occurrence of severe-class hail (hailstone diameters of 2.5 cm or larger) remains an ongoing challenge for operational forecasters. This study examines the application of two remotely ...
High-Resolution Polarimetric Radar Observations of Snow-Generating Cells
Publisher: American Meteorological Society
Abstract: igh-resolution X-band polarimetric radar data were collected in 19 snowstorms over northern Colorado in early 2013 as part of the Front Range Orographic Storms (FROST) project. In each case, small, vertically erect convective ...