An umbrella or a water proof costume might be a good idea for trick or treaters in Alabama on this Halloween. The weather forecast statewide calls for rain, including a flash flood watch and a sixty percent rain chance by 6 pm for Mobile. Tuscaloosa is just as wet with a six in four percent chance of stormy weather at 11 am, with the rain returning by 6 o’clock. In the Huntsville area, the outlook includes a sixty percent chance of showers starting just after lunch time, increasing to a ninety percent chance later in the evening. Some trick or treaters are expected to head out early or stay indoors.