Subscribe | UPI Odd Newsletter Subscribe July 12 (UPI) -- A Pennsylvania construction worker captured video of one of three dust devils that swirled through his work site within a matter of minutes. Mike Cimino, who posted his video to Facebook, said two dust devils, sometimes called "dustnados," formed at the Folcroft, Delaware County, construction site and lasted for about three minutes. Advertisement The worker said a third dust devil started after the first two dissipated and lasted for about two minutes. Cimino said he and his coworkers were captivated by the scene because it wasn't a particularly windy day. Read More Arizona woman records huge dust devil next to road Dust devil causes unexpected little league game delay Twin waterspouts form off Florida coast