Natural Resources, School of


Date of this Version



GEOSS Drought Workshop XL: Monitoring through Earth Observations Sydney, Australia, April 10, 2011; doi: 10.1109/GEOSS.2011.5948939


The U.S. Drought Monitor

Since 1999, NOAA (CPC and NCDC), USDA, and the NDMC have produced a weekly composite drought map -- the U.S. Drought Monitor -- with input from numerous federal and non-federal partners.

History of the North American Drought Monitor (NADM)

  • The concept for the NADM was developed and discussed in 2002
  • The first NADM map was released in March 2003
  • The first NADM map in all three languages (English, Spanish, and French)was released in October 2003

History of the NADM

  • The United States started off as the only country to author and organize the map
  • Canada began authoring in January 2006
  • Mexico began authoring in October 2008

North American Drought Monitor Partners


  • Agriculture and Agrifood Canada
  • Environment Canada
  • Meteorological Service of Canada


  • National Meteorological Service of Mexico (SMN-Servicio Meteorologico Nacional)
  • CONAGUA (Comision Nacional del Agua)

United States

  • National Drought Mitigation Center
  • National Climatic Data Center
  • Climate Prediction Center
  • United States Department of Agriculture