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.

Download Recovery Map Data: xml csv json txt

Worst Case Scenario Palmer Hydrological Drought Index

November 15, 2017

Download PHDI Data: xml csv json txt