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DATA & MAPS

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Looking to Download Data? The Drought.gov team reformats data from multiple partners into web- and GIS-ready formats, which we use throughout Drought.gov. These data are free for all to download.
Search Results(191)

River DroughtCast

River DroughtCast is an interactive online tool that delivers current streamflow drought conditions and weekly forecasts of streamflow drought at approximately 3,000 USGS streamgages with more than 40 years of data across the lower 48 states.

Data Coverage
Contiguous U.S.
Period of Record
December 2025–present (forecasts out to 13 weeks)
File Format
other
Data Type
Model

Sierra Nevada and Upper Colorado River Basin Water Storage Tracker

The CNAP Sierra Nevada Water Storage Tracker provides daily reservoir storage and snowpack information. 

Data Coverage
United States
Period of Record
Current Conditions
File Format
images
Data Type
Land-based Station

SNODAS Gridded Snow Depth for the U.S.

SNODAS provides estimates of snow cover, depth, snow water equivalent (SWE) and associated variables to support hydrologic modelling and analysis.

Data Coverage
United States
Period of Record
2003 - Present
File Format
text (ascii)
other
Data Type
Model

Snow Cover Maps

U.S. NIC provides snow maps produced using the Interactive Multisensor Snow and Ice Mapping System (IMS) depicting the extent of daily snow and ice coverage in the Northern Hemisphere.

Data Coverage
Global
Period of Record
1997 - Present
File Format
images
geotiff
Data Type
Satellite