We're getting bitchslapped. I felt the first shear-winds about five minutes ago, and now it's coming down in sideways sheets. Rumbling directly overhead but the overcast too thick to show much flash.
It'll be one hell of a gully-washer.
Rain's bouncing about 6" back off the roof.
ETA: if I had to guess I'd say visibility is 500 meters through the falling water.
ETA2: Rain-hail mix bouncing completely over the rain-gutters.