The North American Drought Monitor (NADM) program was initiated in April 2002. It covers the North American continent since it is a cooperative effort between drought experts in Canada, Mexico and the United States. The involved organizations include NOAA's National Climatic Data Center and Climate Prediction Center, the US Department of Agriculture, the National Drought Mitigation Center, Agriculture and Agrifood Canada, the Meteorological Service of Canada and the National Meteorological Service of Mexico (SMN - Servicio Meteorologico Nacional). NADM is based on the U.S. Drought Monitor. Its purpose is to provide an ongoing comprehensive and integrated assessment of drought throughout all three countries.

NADM provides downloadable data and maps on its website. They include information such as aggregated drought intensity and impact, the standard precipitation index (1-month to 24-month), percent of average precipitation (1-month to 60-month) and Palmer Drought Index. These products reflect current drought conditions. The public accessible information does not include forecast data. Users are the general public as well as specific organizations.

References:

NADM Websites (http://www.ncdc.noaa.gov/temp-and-precip/drought/nadm/index.html,
accessed on March 28, 2012)

V. Grasso and A. Singh, UNEP (Dec 2011, forthcoming): Early Warning Systems:
State-of-Art Analysis and Future Directions.