This video isn't amazing, but does help to illustrate clouds moving in all different directions and rotating. It was taken at 4:16 PM, well in advance of a line of tropical downpours that were progressing from west to east across Massachusetts. The line of intense radar echoes stretched from the MA/NH border south to CT, and propagated west to east. On the southern end of the line, a tornado warning was issued about an hour prior for a rotating storm in extreme northern Middlesex County, Connecticut. It wasn't long before Storm Relative Velocity plots from the KBOX (Taunton, MA) WSR-88D NEXRAD radar was showing at least some rotation in a number of storms. Interestingly enough, it was these clouds that first clued me into this rotation - I saw them swirling in many directions as multiple rotors, and realized just how turbulent the atmosphere was. For a short time, a storm near Carlisle, MA, showed a tornadic vortex signature on the radar algorithm, and there were a number of intense updrafts that briefly showed well-defined rotation on radar, as well as in person. The observation I made here, however, was that the rotating clouds were coming BEFORE the rain, meaning before the most intense updrafts. You can see the cloud base only a couple hundred feet off the ground (sometimes lower than that!), which is a dangerous sign that any tornado would be embedded in a rain shield (this is due to a low lifted condensation level, or LCL), but the fact that the rotation outran the updrafts meant we got some impressive wind gusts to 25 or 30 mph rather randomly beneath some of these vorticies, but nothing to "sweep me off my feet." Actual downpour came in 15 minutes later - very heavy rain for street flooding and gusts to 30 mph...no damage in this location. Received word of limbs down in Bolton to my Twitter account (@mattnoyes).