Extreme rainfall events have increased in frequency and intensity in the Southeast, and will continue to increase in the future. Most of the region is projected to experience 6% to 25% more days each year with more than an inch of precipitation by the middle of the century. The largest increases (up to 25% increases) in extreme precipitation are expected across the Appalachian Mountains. The smallest increases (less than 10%) are expected across Arkansas, Louisiana and Mississippi. Days with more than 2 inches, 3 inches, and 4 inches of precipitation are also expected to occur more frequently by the middle of the century. Under a high emissions scenario, projections indicate approximately double the number of heavy rainfall events (2-day precipitation events with a 5-year return period) and a 21% increase in the amount of rain falling on the heaviest precipitation days (days with a 20-year return period) by late century. Heavy precipitation associated with hurricanes and tropical storms could result in more flooding and damage to coastal forests, and contribute to an increase in inland flooding as well.