According to the Mayor himself, which corresponds with the video he provided on the day of the storm, he had no shortage of rescue boats in the water as soon as the winds dropped below 50mph. Annoying conditions, not battle ones.
And I still assert that these are battle conditions...worse, even, because combat surgeons and nurses are trained, equipped and prepared. No sanitation, no fresh water, no fresh supplies, intense heat, no utilities, none of the dazzling high-tech toys would work. Including, very likely, the drips, which explains the "cocktail" business.