There is so much preparation and planning into the prevention and recovery, it is mind boggling. The Emergency Management Centers practice year round to be prepared, but hope it never happens. Through CERT, I've been involved in several practices, one in 2016 including med-evacing injured from Charleston to Columbia in the event of a hurricane, using HAM radios (loss of electricity) to coordinate with ambulances, air traffic local LE and hospitals, victims (around 150 high schoolers, authenticated with moulage), plus a C-5 coming in with paramedics and patients.
A few years ago, we were passing a trucking area in Jacksonville while there was a hurricane going through South Florida. There were probably 1,000 vehicles in the staging area - lined up in a convoy ready to go as soon as the winds subsided. Fuel, food, emergency supplies, water, rescue vans, etc - with enough state troopers and tow trucks to make sure that everyone got there safely and as fast as possible.
Prayers that it is (as MB Guy) says a rain with a name.