You might think about cutting a door out on the totes and reconnecting the cutout with a hinge to gain access for unloading. When empty, close it up and latch it and it's ready to refill.
Y'all be careful with this storm. We are supposed to get anywhere from 8 to 18 inches of rain. My generators are in place with about 40 gallons of gas!!! Stay Hydrated and Have a Safe Day