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Colloquium: Dr. Casey Davenport
October 16 @ 2:00 pm - 3:30 pm
Due to the COVID-19 Pandemic, the University has instruction to cancel all in-person events through the Fall semester to adhere to city and state orders limiting public gatherings. Events still running must now take place Online— listed events will include a link in which one may access the Online webspace:
To view Dr. Davenport’s talk, enter her Online chatroom via Microsoft Teams— it will open at 2:00 pm on Friday, October 16, 2020.
Environmental Evolution of Long-Lived Supercell Thunderstorms
Dr. Casey Davenport
Assistant Professor of Meteorology
University of North Carolina at Charlotte
“Long-lived supercells (> 4 hours) are relatively rare, but present significant risk for society as a result of their intensity and associated hazards over an extended time period. The persistence of a rotating updraft is tied to near-storm environmental characteristics; however, given the prevalence of mesoscale environmental heterogeneity near convection, it is unknown to what extent those near-storm characteristics vary over the lifetime of a supercell, nor how quickly the storm responds to such changes. This study examines nearly 150 long-lived, isolated supercells, focusing on the evolution of their near-storm environments using model analysis soundings collected each hour throughout the storm’s lifetime. Diurnal and maturity-relative distributions of common forecasting parameters will be shown, along with comparisons among subsets such as marginally vs. very long-lived and severe weather production. The goal of such analyses is to enhance short-term forecasts of supercells by better anticipating storm evolution as a result of environmental variations.”
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