What should I do to prepare for a flood? Thank you ~ urgent!!!

(1) Organized evacuation to slopes, highlands and other places. (2) If the flood comes ferociously, immediately climb on the roof, trees, buildings, high walls can do temporary shelter, waiting for rescue. (3) If you accidentally fall into the flood, you can grab the floating boards, boxes, etc., and wait for rescue. (4) When you take refuge, you should carry the necessary clothes to protect yourself from the cold, and especially bring the necessary drinking water, and never drink the flood water, so as not to spread the disease. Okay, thanks!