EF1 tornado in Roger Mills County, Oklahoma

A third tornado from the southern tornadic supercell occurred from southwest of Roll that initially moved north-northwest, then curved northeast to the northwest of Roll. A shed and well house were destroyed near the initial touchdown of the tornado about 6 miles southwest of Roll. The tornado moved north-northeast on the north side of a creek valley and caused damage to trees and fences along the path. A mobile home suffered minor damage and a barn was destroyed about 6 miles west-southwest of Roll as the tornado turned to a more northerly motion. The tornado then turned to the northeast and caused major damage to an unoccupied house south-southwest of Roll, and another as it passed 2 to 2.5 miles west of Roll. The last damage observed from this tornado was about 2.5 miles northwest of Roll where trees and fences were damaged.

An upper level storm system moved slowly into south central Colorado during the afternoon. A dry line had become established and was located along the Oklahoma and Texas panhandle border. Also, favorable upper level winds were rotating around the upper level storm system, crossing the dryline over western Oklahoma. As the afternoon progressed, convergence along the dryline became maximized over this area. Thunderstorms developed during the afternoon hours and they quickly became supercells. Two of the supercells produced several tornadoes. The northern tornadic storm produced five tornadoes from southwest of Roll to just east of Arnett. The southern tornadic storm also produced five tornadoes in Oklahoma from near Sweetwater to near Sharon. Large hail was also observed. The supercells moved northeast out of Oklahoma during the late evening hours. Monetary values for the tornado damage were estimated.