Tornado outbreak of April 21–23, 2020

On April 22, 2020, an outbreak of discrete supercell thunderstorms across portions of Oklahoma, Texas, and Louisiana led to widespread severe weather, including multiple strong tornadoes.

[7] Confidence in organized severe weather came as a southwest-to-northeast oriented trough moved eastward across the United States, interacting with a corridor of low-level moisture and instability ahead of this feature.

[8] Throughout the early morning hours of April 22, discrete thunderstorms posing a risk for damaging winds and hail developed across Oklahoma, north of an approaching warm front.

[9] Farther south across central Texas and into western Louisiana, elevated convection began to increase in the presence of strong wind shear, with the expectation that those storms would become surface based with time as they progressed into a region of modest daytime heating.

The combination of partially sunny skies and dew points in the upper 60s Fahrenheit led to a very unstable environment across northwestern Texas and into southwestern Oklahoma.

[1] Farther south across eastern Texas and western Louisiana, a subtle warm front and an additional surface boundary proved to be the impetus for convection to develop supercell characteristics.

[18] This large, intense wedge tornado first touched down at 5:35 p.m. CDT (22:35 UTC) in Trinity County along the north shore of Lake Livingston northwest of Onalaska south of FM 356.

The tornado then reached its peak width of over one-half-mile (0.80 km) wide as it tore through the north side of Seven Oaks while restrengthening to EF2 intensity.

Two mobile homes were completely destroyed as the tornado crossed US 59 and hardwood trees in the area were snapped, denuded, and partially debarked.