EF1 tornado in Pike County, Mississippi

An EF-1 tornado with peak estimated winds near 105 mph and max width of 300 yards touched down near Johnston Chapel Rd. A broadly defined area of uprooted and damaged trees was identified via high resolution satellite imagery near the beginning of this path which continued east-southeast across Old Brookhaven Rd and Interstate 55. This damage was corroborated by a storm report with pictures of numerous uprooted trees near Chapel Dr. The tornado began to strengthen and increase in size with complex multi-vortex behaviors evident according to the damage path present after crossing I-55. Numerous trees were snapped and uprooted along US Hwy 51, Rollingwood Drive, and Johnston Station Rd. Additional tree damage was surveyed near Lakeside Drive on Southwest Mississippi Community College campus. The tornado continued east destroying a cinderblock dugout at North Pike High School. More tree damage was also identified on Barrett Drive and Jaguar Trail. Scattered pockets of wind damage were evident via ground survey across Barnett Rd and L.D. White Rd, but the most cohesive damage points representative of a tornado damage path were evident to the southeast as the multi-vortex tornado continued to produce patches and swaths of tree damage on high resolution satellite imagery near Hwy 570 and and River Ridge Rd. The tornado damage path evidently became incoherent after crossing River Ridge Rd and it's estimated the tornado lifted prior to reaching Hwy 44.

Environmental conditions favorable for a QLCS (Quasi-Linear Convective System) tornado event developed across southeast Louisiana and southern Mississippi during the afternoon and evening hours of March 11th. An upper-level storm system moving east from Texas overspread a very moist and increasingly unstable air mass in place across the region. At the same time, intense low-level wind shear and strong atmospheric spin developed as southerly winds strengthened ahead of an approaching line of storms with bowing segments.

The combination of rich Gulf moisture, strong low-level atmospheric spin, and a fast-moving line of thunderstorms created an environment supportive of embedded rotating circulations along the leading edge of the QLCS. As that line moved west to east across the local area, several rapidly developing tornadoes formed within these circulations. A total of 6 tornadoes were confirmed across southwest Mississippi and multiple reports of damaging straight-line winds were also received.