From the WDW site:
"September 8, 2017
New dine reservations for September 10 and 11 are not available at this time as we monitor progress of Hurricane Irma. Effective immediately we will not be enforcing dine reservation cancelation policies so no need to cancel dine reservations through Monday September 11th.
Restaurants are open as normal today. Starting now, we won’t be enforcing the cancellation fee and you don’t need to cancel."
ETA: I've been on these boards for a long time and the Irma threads are an example of why. Posters offering safety tips, updated news and information, and even folks offering their home to "friends" on the boards that are alone. I feel as though I know many here and to our Mods, CMs, and everyone in the affected areas, we are thinking of you, wishing the best, and praying for your safety. Please check in if you are able during/after the storm.