EF0 tornado in St. Tammany Parish, Louisiana

A brief EF0 tornado touched down in Eden Isle, LA and moved east. Widespread branches and tree debris was found in Eden Isle along with a few houses with minor damage. One house had a failure at the garage where the wind looks to have been pushed into the garage. The tornado damaged businesses right near I-10 as it crossed over with a few more homes damaged and trees down in Lakeshore Village. The widespread light damage across Eden Isle did make this a difficult track, especially track width, to find. The additional damage was likely inflow from straight line winds and/or debris that was swirling out of the tornado.

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.