A Flash Flood Watch is in effect until 5 a.m. Thursday for most of Arizona as moisture from former Hurricane Nora moves through the state. Forecasters say very deep moisture from Nora arrives and is expected to interact with a trough moving in off the Pacific Ocean. The threat for widespread showers and thunderstorms with heavy rain and potential flash flooding is possible today with the potential of one-to-two inches of rain in less than an hour. If you are in a flood prone area, keep an eye on the weather through today.