Abstract: Recent studies have suggested that supercell tornado environments are usually associated with large 0?1-km storm-relative helicity (SRH) and relatively low lifting condensation levels (LCL heights). However, occasional ...

Abstract: It is generally understood that tornadoes are less likely in environments where surface-based instability is absent and the only convective available potential energy (CAPE) is from elevated parcels originating well above ...

Abstract: Tornadoes that occur in close proximity to midlevel closed lows with a core of cold temperatures aloft are not uncommon, particularly in the central United States. Although several informal studies have shown that severe ...

Abstract: Edwards and Thompson have made comprehensive and thorough comments concerning the methods, accuracy, and results in a case study by Kellenbenz et al. These comments questioned the representativeness of model-derived soundings ...

Abstract: On the evening of 18 July 2004, several tornadoes occurred with two supercell thunderstorms over eastern North Dakota. The second and smaller in diameter of these storms produced an F4 tornado in an environment with lifting ...

Abstract: This paper considers a tornadic storm that struck south-central and eastern Kansas on 13 March 1 990. Most of the devastation was associated with the first tornado from the storm as it passed through Hession, Kansas. From ...

Abstract: ecent literature has identified several supercell/tornado forecast parameters in common use that are operationally beneficial in assessing environments supportive of supercell tornadoes. These parameters are utilized in ...