Radar grab from 0129z when the tornado was on top of the golf course. I've marked the golf course with a red square

 

L2 shot from the same time, provided by L.B. The top two panels are base reflectivity and base velocity. The bottom two are storm relative velocity at 0.5 and 1.3 deg tilts

http://www.nicknoltewx.com/img/anigif.gif

Link to an animated gif of the bow echo hitting us at Elk Rapids, left is Base Ref, right is Base Velocity.

Here's a dual panel right as it hit us, we did manage to find the strongest portion. Base velocities in those dark blue specks were 74 knots.