This is the 3rd time Frederick has had 5"+ rainstorm since 2015. The other 2 were.
9/29/2015
5/16/2018
Here's a shot of the flood control system doing a pretty good job keeping up with the runoff and limiting the scope of the damage.
Looks kind of lopsided. Probably good for heavy rains and a couple of weak tornadoes. Not good considering how much rain they've had in the MS Valley. TS Lee 2011 comes to mind as an analog. This seems to be moving a little faster though.
Interesting how this Tornado outbreak seemed to skip over Louisiana and the 2-7pm window when a lot of Tornados usually occur. Most of the activity was in the morning or overnight.