Mike,
Those are handy suggestions. A dedicated camera cover or water-resistant/proof housing would be better as they are designed specifically for camera work. However, those impromptu bags can be a quick fuse lifesaver. Main things to look out for are; leaks since those bags generally aren’t designed to be waterproof, ventilation because cameras (particularly CMOS based) get hot, and whether the bag interferes with the operation of the rig. It’s great the cam’s dry, but you can’t work the controls w/o opening the blasted thing….
Oh and in the case of a Tornado, unless it’s your gig to film them it’s best to leave it to the pro’s.
