path:
	http://www.weather.gov/images/fsd/events/2015May10/Delmont_TorPath.PNG

full path info:
	http://www.weather.gov/fsd/20150510-tornado-delmont

photos from Lutheran Disaster group:
	http://photo.lcms.org/#!/index

video #1, drone:   
	https://www.youtube.com/watch?v=iu44cjSElQM  

video #2, helicopter, higher so as to show the path (see dark streak across ground):   
	https://www.youtube.com/watch?v=K7kM0Y2vxbg