Although prolonged flooding may exceed the saturation tolerance of some species, an increased risk of drought is also a serious threat which many species are not likely to withstand. Changes to the timing and intensity of precipitation events are expected to result in increased flooding, erosion, and sedimentation during precipitation events, as well as potentially increased risk of drought between precipitation events. Hotter and drier conditions could reduce water table levels and water availability to trees. The effects of hotter and drier conditions during the growing season are likely to vary widely based on both site and weather conditions, and trees that are shallow-rooted, on droughty soils, or already stressed may be most at risk. Prolonged flooding during the growing season may kill tree species that cannot handle long periods of inundation.