Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
A flood in a dream is torment from God or a conquering enemy. Its entry into houses indicates general strife. Surviving it is salvation from hardship.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
A flood indicates the ruler's soldiers or a general illness. If it is of blood, it is war.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
A flood is interpreted as torment. Whoever sees himself flee from it is saved from torment.