The National Weather Service says two tornadoes were reported Friday in southwest South Dakota, one in the Black Hills near Terry Peak and the other in Bennett County.
Weather spotters from the Martin VFD reported a twister touching down between Allen and Batesland before traveling southeast and likely crossing Hwy 18 before dissipating.
The National Weather Service damage survey rated the tornado at EF 1 with winds up to 110 mph causing some structural and tree damage.
The Black Hills National Forest is assessing the impacts of the Friday afternoon tornado near the old mining town of Tinton. It was also rated at EF 1 with with top winds of 105 mph.
Initial assessments showed the storm traveled toward Terry Peak, but the results of a reconnaissance flight have not yet been released. No structural damage was reported, but trees were snapped and uprooted.
Forest Service crews are currently clearing roads and will work to get trails open when road clearing is complete, but until then officials are urging caution in the damage area as many roads and trails may still be blocked and dangerous snags could be adjacent to them.
The Black Hills National Forest also sustained an EF 2 tornado last Monday that touched down in Wyoming near Sundance and continued to near Cheyenne Crossing at the south end of Spearfish Canyon.