April 21, 2022 - 3:30 pm
April 21, 2022 - 4:30 pm
CategoriesConvective Meteorology (Mesoscale Dynamics)
Convective Meteorology (Mesoscale Dynamics)
New insights into tropical cyclone tornadoes
Thursday, April 21
Join Google Meet: meet.google.com/dsk-amsn-vbk
Landfalling tropical cyclones often produce tornadoes that compound damage inflicted by other storm hazards (e.g., inland flooding). However, current conceptual models do not explain the order of magnitude variability in the number of tornadoes among tropical cyclones with similar landfalling locations and intensities. We also lack a complete understanding of why nearly all tornadoes occur in the eastern half of landfalling tropical cyclones. This seminar will address these knowledge gaps by discussing the impact of tropical cyclone outer size and ambient deep-tropospheric vertical wind shear on tornadoes. In particular, we use tornado reports and radiosonde data to analyze the multi-scale relationship between tornadoes, tropical cyclones, and their ambient synoptic-scale environment. Together, this work provides a basis for improving forecasts of the number and location of tropical cyclone tornadoes.