EF2 tornado in Alfalfa County, Oklahoma

This tornado developed about 4 miles west-southwest of Helena, or about a mile southeast of the community of McWillie. This tornado moved generally northeast although there was some variability in motion as it moved north of Helena and then south and east of Jet. Power poles were damaged as the tornado crossed State Highway 45 and areas west of Helena. Significant damage was observed along State Highway 58 north of Helena where a number of power poles were broken along a mile stretch of SH-58, and at least three barns were destroyed (EF2) both along SH-58 and east of SH-58 on E0300 Road. The tornado continued to produce tree and power pole damage as it moved northeast. Power poles were broken east of Jet along N2740 Road and along U.S. Highway 64 on both sides of the Alfalfa-Grant County line. The tornado then moved into Grant County with the centerline crossing the county line just north of U.S. 64.

Scattered severe thunderstorms impacted portions of western and northern Oklahoma from the late evening of the 5th into early morning hours of the 6th. This activity developed in the vicinity of a dryline as a deep upper trough began to establish across the Four Coners. As a nocturnal low-level jet strengthened after sunset, a pair of cyclic tornadic thunderstorms emerged from the eastern Texas Panhandle into northern Oklahoma. In addition to several tornadoes, including a deadly tornado west of Fairview in Major County, large hail and eventually damaging wind gusts were observed with severe convection across the region.