Our Electric awning has an auto dump feature, however, ours is pitched so water just runs off it. Our seasonal site is across from a farm in South Jersey usually with a breeze going all day long. Our site is on the end closest to the farm. We bought a set of
Camco awning tie downs so we could keep the awning out all the time without worry.
We had a Macroburst storm roll through here a couple weeks ago with winds up to 85 mph. The NWS alerts never mentioned high winds, just thunderstorms and flash flooding so I left the awning out. We had trees fall all around us, but the awning stayed put. The wind stressed the heck out of the springs that came with the tie downs to the point that can't be used anymore, but they saved the awning. I wouldn't have left the awning out if I was warned of the high winds.
-Michael