Sunday, 9:59 pm
The Fort Worth radar is showing a clear tornado debris signature in the long lived supercell in southwestern Johnson County west southwest of Rio Vista, heading in the general direction of that town. It will pass near Covington and near Grandview on I-35, just north of the split south of Dallas/Fort Worth.
The TDS is show as the blue circle in the lower right panel (correlation coefficient) from the Fort Worth dual=pol Doppler radar.
Frequent power flashes just reported by a spotter.
