EF1 tornado in Harrison County, Texas

This brief EF1 tornado with estimated maximum winds of 90 mph began at Harkins Lane and traveled eastward for approximately 1 mile just north of Farm-to-Market Road 1998. Nearly all of the damage was to softwood and hardwood trees in the form of uproots and snaps. The highest concentration of tree damage was in the neighboring Scottsville and Rock Springs Cemeteries near the start of the path. It is possible the tornado was on the

ground a bit longer than one mile, but the lack of ground access hindered the ability of the survey team to confirm this. Fortunately, there were no injuries in association with this brief tornado and the maximum width was only 100 yards.

A very mature squall line developed along and ahead of an advancing cold front across the Ark-La-Tex region during the mid to late morning into early afternoon on March 4th. Damaging wind gusts were the primary threat with this squall line, but numerous strong mesovorticies became embedded within this quasi-linear convective system (QLCS). Dew points were in the mid to upper 60s with over 500 J/kg of MLCAPE and 450 m2/s2 of 0-1 km storm relative helicity (SRH). As temperatures continued to warm into the lower 70s with MLCAPE increasing to around 1000 J/kg MLCAPE, the increasing threat of supercell thunderstorm development only heightened the tornado threat. As a result, numerous reports of damaging straight-line wind gusts and several tornadoes were documented across East and Northeast Texas.