EF1 tornado in Ottawa County, Oklahoma

This tornado developed just south of the E 230 Road and moved north-northeast destroying a mobile home, destroying several outbuildings, and snapping or uprooting trees. As the tornado approached the E 190 Road near the S 600 Road, it turned more to the northeast. Numerous trees were snapped or uprooted, a home was damaged, and outbuildings were damaged between the E 190 Road and Grand Lake. After moving over Grand Lake, the tornado damaged chicken houses and snapped or uprooted trees before dissipating east of Highway 10 near the E 160 Road. Based on this damage, maximum estimated wind in the tornado was 95 to 105 mph.

A strong upper level disturbance translated from the Southern Rockies into the Southern Plains on the 16th. Very moist and unstable air was in place across the Southern Plains as this system approached. Severe thunderstorms developed over western Oklahoma and northwestern Texas during the afternoon and moved eastward into eastern Oklahoma in the late evening. By the time the storms reached eastern Oklahoma, a well-organized squall line had evolved but due to very strong low level wind shear, multiple tornadoes occurred across the area along with widespread damaging wind. Locally heavy rainfall resulted in flash flooding in some areas through the early morning hours of the 17th.