My MH is surounded by huge white pines and monster oak trees. In the fall, especially during high winds, it becomes a mess very fast. I use a gas leaf blower which does an easy and excellent job.
It's not clear to me if the slide was in or out during the storm and what position it's in now.
If it was in and still is, with a ladder and blower, just blow away everything you can see from the outside and ends. You may have to get on the roof to get the top channel. Put the slide out to check the roof.
If the slide was out or is out now, you'll want to blow everything off the top of the slide, if you have a topper, you will of course have to do this from both sides. If the debris is still wet or damp, it will be much easier to wait until all is fully dry first.
John & Clare - Buck & Zeus - Jack & Husky
2008 Fleetwood Bounder 38P
Towd: 2 HD Streetglides