here are the things you should do before, during and after a flood.

Before: Closely monitor the news, reinforce your home, prepare essential supplies (food, water, medicine), move property/livestock to higher ground, and be ready to evacuate when ordered.

During: Immediately cut off the power supply, move people and property to a high, safe place, and especially stay away from areas with strong currents.

After: Priority should be given to ensuring electrical/structural safety, cleaning the environment by disinfecting, disposing of animal carcasses, and treating drinking water (boiling or using alum) to prevent disease outbreaks.