EF1 tornado in Osage County, Oklahoma

This tornado was witnessed by numerous storm chasers and remained over mainly open country. Power poles were snapped by the tornado on Foraker Road, south of Foraker. Otherwise, no known damage occurred from this tornado. Based on this damage, maximum estimated wind in the tornado was 85 to 95 mph.

Severe thunderstorms developed across northeastern Oklahoma during the evening of the 26th, near a warm front as an upper level disturbance approached the region from the west. The atmosphere across eastern Oklahoma became very unstable during the afternoon and early evening and the deep-layer wind shear was strong with the approach of the upper level disturbance. Some of the thunderstorms were able to develop into supercells due to the favorable combination of instability and wind shear. Several tornadoes and large hail up to quarter size occurred with the strongest thunderstorms.