I ran across an interesting thread on another board about a Federal worker's experience providing comms in Puerto Rico in the aftermath of Hurricane Maria.

https://www.ar15.com/forums/Outdoors/-ARCHIVED-THREAD-Heading-to-Puerto-Rico-with-my-radio-Wish-me-luck-/22-690608/?page=6

I pointed you to page 6 - if you scroll down about 20% you'll find the beginning of this After Action Report (AAR) to the board.

While not Red Cross (he ended up as a SHARES radio operator) he did help out the Red Cross upon arrival in the PR.

Food for thought...