Storm Reflectivity and Mesocyclone Evolution Associated with the 15 April 1994 Squall Line over Kentucky and Southern Indiana
| Autor: | Joseph D. Kirkpatrick, Yeong Jer Lin, Van L. Dewald, Gary K. Schmocker, Ron W. Przybylinski, Theodore W. Funk, Kevin E. Darmofal |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Weather and Forecasting. 14:976-993 |
| ISSN: | 1520-0434 0882-8156 |
| DOI: | 10.1175/1520-0434(1999)014<0976:sramea>2.0.co;2 |
| Popis: | A long-lived highly organized squall line moved rapidly across the middle Mississippi and Ohio Valleys on 15 April 1994 within a moderately unstable, strongly sheared environment. Over Kentucky and southern Indiana, the line contained several bowing segments (bow echoes) that resulted in widespread wind damage, numerous shear vortices/rotational circulations, and several tornadoes that produced F0–F2 damage. In this study, the Louisville–Fort Knox WSR-88D is used to present a thorough discussion of a particularly long-tracked bowing line segment over central Kentucky that exhibited a very complex and detailed evolution, more so than any other segment throughout the life span of the squall line. Specifically, this segment produced abundant straight-line wind damage; cyclic, multiple core cyclonic circulations, some of which met mesocyclone criteria; several tornadoes; and embedded high precipitation supercell-like structure that evolved into a rotating comma head–comma tail pattern. The bowing seg... |
| Databáze: | OpenAIRE |
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