EF1 tornado in Cherokee County, Oklahoma

This is the first segment of a two segment tornado. The tornado developed south of the 920 Road, where numerous trees were snapped and uprooted, a couple homes were damaged, an outbuilding was destroyed, and power poles were snapped. The tornado moved northeast snapping and uprooting numerous trees and snapping large tree limbs as it moved through rugged terrain into Adair County. It produced a tornadic debris signature from the KSRX WSR-88D. Based on this damage, maximum estimated wind in this segment of the tornado was 105 to 110 mph.

Severe thunderstorms developed over central Oklahoma along and ahead of a dry line during the afternoon of the 19th, as an upper level disturbance approached the Southern Plains. These thunderstorms moved northeast off the dry line and across portions of eastern Oklahoma during the mid afternoon and evening hours. The atmosphere east of the dry line across eastern Oklahoma became very unstable during the afternoon and evening, and this instability combined with strong deep-layer and low-level wind shear, resulted in the development of a few supercell thunderstorms and a severe squall line. Multiple tornadoes, large hail slightly larger than golf ball size, and damaging wind gusts occurred with these thunderstorms across eastern Oklahoma. Locally heavy rainfall also produced some localized flash flooding.