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High-resolution Tornado Damage Surveys Compared to Doppler Velocity-derived Rotational Strength Parameters

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Thursday, 6 November 2014
Capitol Ballroom AB (Madison Concourse Hotel)
Kiel L. Ortega, National Weather Center, Norman, OK ; and J. G. LaDue, T. C. Meyer, and D. M. Kingfield

Handout (1.9 MB)

Previous research has shown some relationship between the intensity of the rotational velocity derived from WSR-88D Doppler velocity data and the intensity of damage caused by a tornado. This study will continue efforts to explore the relationship between the rotational strength and tornado intensity. Simple (e.g., EF-rating versus rotational velocity) and more complex comparisons (e.g., power dissipation as determined by damage surveys and radar-based estimates) will be completed. The primary focus will be on the Central Oklahoma tornadoes of May 2013, which were located near several radar facilities and highly detailed surveys were completed.