With the whole Max Velocity kerfuffle recently, I decided to go back through the radar data and ask the question myself if the warnings were relevant. 

From the images Max posted it looked more like convergence, but looking at reflectivity and SRV in RadarScope, I personally think there was enough to justify the warnings being issued initially, though I also conclude there was definitely cause for them being extended/reissued as the storm continued east. The rotation signatures aren't super clear, but that is to be expected as these storms are part of a QLCS. 

Personal Takeaway: Best practice should be to check multiple radar providers to get the most accurate overall picture. 

Also be nice to the NWS regarding issuing warnings: It's not an easy job and there's a very fine line between false positives creating a cry wolf effect, and failing to warn an active tornado. This is even more difficult when dealing with QLCS based systems like this one, as these systems are infamous for producing quick spin up tornados that can be hard to detect and can vanish just as fast. 

I didn't really want to make this to bash Max or others. It can be surprisingly easy to make this type of mistake when looking at things in real time. My intent by posting this is to look at what actually happened, and focus on where to improve, rather than who to blame. 

Source for images is RadarScope Pro archive, taken by me in 5 min intervals to match refresh times. 

Radar Data from NWS Sterling from Time Relevant to Max Velocity Controversy