A vast majority of Missouri is now under the threat of possible flash flooding later today and overnight as heavy rainfall is expected from incoming storms. Infographic, National Weather Service, St. Louis, Missouri Infographic, National Weather Service, St. Louis, MissouriIt appears that the flash flooding events in these areas of Missouri are expected to be isolated events and not widespread which is good news. However, the forecasters in St. Louis seem to think the worst flooding could happen during the overnight hours when many are asleep. Infographic, National Weather Service, St. Louis, Missouri Infographic, National Weather Service, St. Louis, MissouriThe National Weather Service says that any flash flooding that happens in Missouri tonight is not expected to be life-threatening and standing water across roads should not exceed 3 feet. If you do plan to travel across the parts of Missouri where flash flooding is possible tonight, do take extra caution and be prepared to find a different route if flood waters become a factor.