NA Goldacker, MD Parker - Journal of the Atmospheric …, 2023 - journals.ametsoc.org
Supercell thunderstorms develop low-level rotation via tilting of environmental horizontal vorticity (ω h) by the updraft. This rotation induces dynamic lifting that can stretch near …
Sufficient low-level storm-relative flow is a necessary ingredient for sustained supercell thunderstorms and is connected to supercell updraft width. Assuming a supercell exists, the …
The development and intensification of low-level mesocyclones in supercell thunderstorms have often been attributed, at least in part, to augmented streamwise vorticity generated …
J Fischer, JML Dahl - Journal of the Atmospheric Sciences, 2022 - journals.ametsoc.org
Although much is known about the environmental conditions necessary for supercell tornadogenesis, the near-ground vorticity dynamics during the tornadogenesis process itself …
A sample of 198 supercells are investigated to determine if a radar proxy for the area of the storm midlevel updraft may be a skillful predictor of imminent tornado formation and/or peak …
It has long been observed that interactions of a supercell with other storms or storm-scale boundaries sometimes seem to directly instigate tornadogenesis. First, the authors explore …
On 20 April 2015 a strong tornado struck the city of Xanxerê located in western Santa Catarina (SC) state, in southern Brazil. The tornado destroyed several buildings, causing …
MD Parker - Journal of the Atmospheric Sciences, 2023 - journals.ametsoc.org
This study investigates whether quasi-random surface vertical vorticity is sufficient for tornadogenesis when combined with an updraft typical of tornadic supercells. The viability of …
NA Goldacker, MD Parker - Journal of the Atmospheric …, 2021 - journals.ametsoc.org
Supercell storms can develop a “dynamical response” whereby upward accelerations in the lower troposphere amplify as a result of rotationally induced pressure falls aloft. These …