The flood is not a good omen if the water you see is dirty and unclear and you see lots of mess around you, because it shows the destroyed expectations. However, if the flood is not big one, this wont make big misunderstandings. The flood that is easily escapable is the sign that you can deal with all the barriers and obstacles, because the minor problems wont let you down. If the flood has swept you, you will have to deal with your enemies, because they will try to remove you from their way.
Read more about dreaming of Flood in other dream meanings interpretations.