Just like the storm having signal numbers, floods have also some categories that would tell the proper preparations that you should do. Some people will neglect a storm with the lowest signal, however; this should not be the case. In any flood category, there are appropriate actions that you should take. See it here in this infographic.
- When the flood is minor, you must be informed of the situation of the flood. So, keep your radio or television on for news and updates.
- For moderate flooding, the flood water is dangerous and toxic, so it is recommended that you stay at home. Also, be updated by watching updates from broadcasters.
- Lowland areas are prone to be covered by the flood water, hence, it is recommended that if you are living in these areas, you act quickly by evacuating earlier.
source: https://www.disastercompany.com/what-to-do-during-a-flood-infographic/