Western US SWE Reports

Western US snow water equivalent maps

This research product provides near-real-time estimates of snow-water equivalent (SWE) for the western United States at a spatial resolution of 500 m.

We create reports for specific regions approximately every two weeks from mid-winter through the end of the melt season. The reports are released within a week of satellite image data acquisition and are distributed to water managers and forecasters.  For more information on reporting or to discuss reporting for your area please contact Leanne.Lestak@colorado.edu.

See also:
Sierra Nevada SWE reports 2019-present (California)


Intermountain West SWE reports 2019-2023 (Colorado, Utah, Wyoming) 


2025

Feb 01 (PDF | Tables )
Feb 16 (PDF | Tables )
Mar 01 (PDF | Tables | JPG maps zip)
Mar 15 (PDF | Tables | JPG maps zip)
Mar 31 (PDF | Tables | JPG maps zip)
Apr 06 (PDF | Tables | JPG maps zip)
Apr 13 (PDF | Tables | JPG maps zip)
Apr 20 (PDF | Tables | JPG maps zip)