Below are reflectivity and velocity images as depicted by the Fort Smith area doppler radar:
As a reminder, on the velocity (wind motion) image, red and orange colors show winds blowing away from the radar, while greens and blues show winds blowing toward the radar. The radar is located just off of the image, toward the bottom center. You can see where the bright blue (nearly white) colors line up immediately parallel to the bright red (nearly pink) colors near Cincinnati, which shows where the radar indicates very strong rotation.
The tornado first touched down just Northeast of Westville, OK at about 6:05 am CST. Sporadic damage to homes, trees and power lines were reported as the tornado raced Northeast toward the Arkansas line. The damage photo below was taken near Westville, by the NWS Tulsa survey team:
Preliminary survey information indicates that the tornado reached EF3 strength as it approached Cincinnati, AR. Three residents of that community lost their lives, and at least 7 others were injured. One of the fatalities was to a rancher who was in a barn tending to his cattle. The other two fatalities were in a mobile home that was destroyed. Extensive damage to homes (both regular frame and mobile) was reported. Below are a few photos collected by the NWS Tulsa survey team:
The last photo is of the Cincinnati Volunteer Fire Department building, which as you can see was completely destroyed by the tornado.
It is estimated that the tornado grew to 300 yards wide while tracking through Cincinnati, then grew to 500 yards wide before crossing into Benton County, AR at approximately 6:17 a.m. CST. Preliminary survey information indicates that the tornado dissipated about 3 miles Northwest of Tontitown, just before 6:30 a.m. CST.
There are unconfirmed media reports of debris from Cincinnati being carried as far North as the Northwest Arkansas Regional airport near Bentonville (which is approximately 6 miles north of where the tornado was reported to have dissipated). If confirmed, this will be the 2nd case of a tornado or tornado-associated debris impacting a general aviation airport yesterday. More on the other airport related tornado (near Jackson, MS) in another posting later today...