Hey carlye2001
Looking at your image [and thank you, that helped] I will go with some thoughts if that were me and we had an impending cyclone or tropical storm [of which we have many during the wet season].
I can’t actually see very well in the photos where they sleep but I am guessing the coop/hutch against the far pickets.
During a storm the structure roof and roof on the coop should keep then dry; my only concern would be if the rain is not vertical and enters horizontally through the gap between the pickets and the roof.
If the pickets are secured well and not at risk of being torn off in the storm, there should be ample protection from the wind, my concern would still be rain though.
However, in a cyclone, I would be moving them out of there and into somewhere more secure. If that hutch is easily moved and as centrarchid has suggested everyone fits into it, I would move it and them to somewhere safer.
You have a good starting area there and as you have suggested, with a bit of building and enclosing, that will be an excellent area for your chickens.