Found a FB page for DVC HHIR. People there report things are fine. They've been in pools and ocean daily. Posted picture of kids in pool. One person who lives on Island said mostly rain, little lightening or thunder. Flooding further inland but not bad at HHI - that may mean it's working it's way down .
Disappointed that Disney's HHI website hasn't changed it's banner post since the "We are monitoring...." That's where member services told me to check.