How are flood watches and warnings issued to the public?

Flood watches and warnings are like weather messages that tell people when water might come rushing into their homes or streets.

Imagine you have a water level meter in your kitchen, it shows how high the water is outside. When this meter starts to go up, it means more water is coming. Scientists and weather experts watch these meters all over town and use special computers to predict if the water will rise quickly or slowly.

A flood watch is like getting a note from your teacher saying, "It might rain hard tomorrow, be ready!" This means there's a chance of flooding soon. People start preparing by moving things off the floor or bringing in their bikes.

A flood warning is like the bell ringing at school, it means water is coming now! You need to take action, like going to a higher floor or leaving your house if needed.

Sometimes, people get both messages, first a watch, then a warning, just like getting two reminders before an important test.