Drought Termination and Amelioration
Worst Case Scenario
To view maps and data of precipitation, associated probabilities, and percent of normal precipitation needed to end or ameliorate drought across the Contiguous U.S. assuming no precipitation for the remainder of the month, select from the options below and then click "Submit". The end of a drought is defined by a PHDI value of -0.5. Drought amelioration is achieved when a PHDI value of -2.0 is reached.