It will happen sooner or later, the knock on the RV and a ranger saying you have to evacuate. For us, it happened at Bayou Segnette State Park in Westwego, Louisiana. The area had received almost 10 inches of rain and the park had many areas flooded. No water had reached any RV and was not expected to rise. But out of an abundance of caution, the state decided to close the park and we had to leave immediately. Only problem, this occurred at 5pm one afternoon and all campers had to scramble to find other accommodations.