Thunderstorm Wind in Sebastian County, Arkansas

Strong thunderstorm wind snapped large tree limbs, some of which fell onto power lines.

Strong to severe thunderstorms developed into northwestern Arkansas during the evening of the 25th, north of a warm front near the Red River, as an upper level disturbance approached the region from the west. The atmosphere north of the warm front across northwestern Arkansas became moderately unstable during the late 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. Large hail up to tennis ball size occurred with the strongest thunderstorms, as well as isolated damaging wind.