NIDIS Intermountain West Drought Early Warning System May 23, 2017
These images are produced by the Colorado Climate Center and use precipitation data from NWS COOP, NRCS SNOTEL, CoCoRaHS, and CoAgMet stations
to generate the gridded products. Images are generally updated every Tuesday.
When maps are unable to be updated, AHPS precipitation is shown, courtesy of the National Weather Service.
SNOTEL precipitation data are provided by Natural Resources Conservation Service.
Calculated water year percentiles and maps are produced by the Colorado Climate Center and are typically updated every Tuesday.