Date of Award
2025
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Atmospheric and Earth Science
Committee Chair
Lawrence Carey
Committee Member
Sean Freeman
Research Advisor
Kevin Knupp
Subject(s)
Severe storms--Forecasting, Tornadoes--Forecasting, Convection (Meteorology), Mesometeorology
Abstract
The Propagation Evolution and Rotation of Linear Storms (PERiLS) field campaign deployed mobile facilities on 24 March 2023 to the Mississippi Delta region. During the intensive operational period, a storm system passed over the PERiLS network that later produced multiple tornadoes in Mississippi and North Alabama. This mesoscale convective system evolved from supercells and merged into a QLCS. This study aimed to document and understand the changes in environmental parameters and associated convective-scale structures as the system moved from initiation over the PERiLS network to North Alabama. The analysis methodology utilizes ground-based assets to ascertain if the MCS was surface driven, the evolution of the thermodynamic environments, and the behavior of the associated mesocyclones/mesovortices. It was found that the system was surface driven, two differing thermodynamic environments evolved to one, and after merging the mesovortices/embedded mesocyclones continually reformed over North Alabama in a linear fashion.
Recommended Citation
Bean, Meredith, "A study on the nocturnal evolution during PERiLS 2023 IOP3’s supercells to QLCS development" (2025). Theses. 800.
https://louis.uah.edu/uah-theses/800