Spotter reported that there was nearly a tornado (X report), in a cell near Colby, KS.

AzShear picked up on this area, and DivShear was highlighting on it a couple of brief scans before.

KGLD velocity also indicated two brief potential couplets (just left of center in image).

As warning operator, I would have issued a TOR around 00:17z.

UPDATE: Further analysis indicates this cell was just on the north side of the boundary.

-Oppenheimer