32nd Conference on Broadcast Meteorology/31st Conference on Radar Meteorology/Fifth Conference on Coastal Atmospheric and Oceanic Prediction and Processes

Sunday, 10 August 2003
Terminal Doppler Weather Radar Observations of a Microburst
Daniel J. Miller, NOAA/NWS/Weather Forecast Office, Norman OK, Norman, OK; and D. W. Burgess
Poster PDF (235.6 kB)
Between 0000 and 0100 UTC on 9 October 2002 (7 and 8 PM CDT 8 October 2002), a microburst occurred in the western sections of the city of Norman, OK. This microburst caused significant damage to trees and fences, and light damage to structures, all in a well-defined starburst pattern. This microburst occurred within 10 to 20 km of both the Oklahoma City Terminal Doppler Weather Radar (TDWR), and the Twin Lakes (KTLX) WSR-88D radar. Owing to a combination of sampling factors, including 1-minute scanning intervals at the lowest elevation slice, a closer range, a superior radar viewing angle with respect to the direction of the strongest winds within the microburst, and a smaller sampling volume, data from the TDWR were vastly superior to KTLX WSR-88D data in monitoring the evolution and intensity of this microburst. Using this case, we will show the value of higher spatial and temporal resolution radar products from the TDWR to real-time warning operations in a National Weather Service WFO.

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