EF0 tornado in Jefferson Parish, Louisiana

An EF-1 tornado entered Jefferson Parish from St. Charles Parish 1.35 miles south of Highway 90 near over inaccessible areas to ground survey team near the levees along Bayou Verret. A clear path of tree damage was evident on high resolution satellite imagery spanning to at least 250 yards wide with numerous trees displaced. The damage path within this inaccessible area became weaker and less apparent as the tornado approached US Hwy 90. The tornado was at EF-0 intensity as it crossed US Hwy 90 into Avondale. As it tracked northeast, the tornado caused light home damage and snapped tree branches. The tornado restrengthened to low-end EF-1 intensity at George Street, rolling a single-wide manufactured home into another home which was the cause of the most significant structural damage. The manufactured home was thrown to the northeast with the frame being well bent. 2 people were injured as a result. Additional home damage was also found on Defourneaux Ln as the tornado began to weaken again. It's estimated that the tornado lifted after crossing Restlawn Park Cemetery, near Center Street.

A mesoscale convective system formed on the eastern side of Post-Tropical Storm Arthur on June 18th. Favorable low level winds allowed for multiple mini-supercells to form on the leading edge of the mesoscale convective system resulting in several tornadoes impacting the Houma and New Orleans metro areas. These tornadoes were rated as EF-0 and EF-1 events. Additionally, the mesoscale convective complex tapped into a region of deep tropical moisture with atmospheric moisture content well above normal levels for mid-June. This resulted in several significant flash flooding events in portions of the Houma and New Orleans metro areas including the cities of Houma, Kenner, and Slidell. Another area of heavy rainfall from thunderstorms formed over central Louisiana near the center of Post-Tropical Storm Arthur producing flash flooding in portions of Pointe Coupee Parish. Lingering moisture and weak upper level troughing associated with the slow moving remnants of Post-Tropical Storm Arthur produced additional thunderstorm activity on June 19th. This activity was focused in metro New Orleans where a brief EF-0 tornado developed in the community of Arabi. On June 20th, another band of thunderstorms developed along a lingering boundary stretching from coastal Louisiana toward New Orleans. This band of thunderstorms produced heavy rainfall and impacted portions of the Houma and New Orleans metro areas producing a few flash flooding events in Houma, Destrehan, and Kenner.