Before a flood, prepare by creating an emergency kit with essentials such as water, food, medications, and flashlights. Know your evacuation routes and secure important documents in waterproof containers. Elevate electrical appliances and valuables above potential flood levels. During the flood, stay indoors and avoid driving or walking through flooded areas. If evacuation is necessary, move to higher ground and listen to emergency alerts for updates. After the flood, wait for official confirmation before returning home. Once safe, check for hazards like exposed wires or contaminated water, and follow local guidance for cleanup and safety measures.