I've been doing emergency communications work since getting my ham license in 1976. It's a skill set that takes time to acquire and polish. Getting a ham license and practicing emergency communications during non-emergency public service events might be a worthy goal for your "to do" list. The rain/flooding that you are experiencing now will surely occur again. I admire your willingness to jump in and help.
ARRL has a bunch of standard forms for handling emergency traffic. You can find them as freebies at this link. Scan the list and pick out items relevant to your resources. There are more resources here