2021 SECURE Water Act Report to Congress
The Bureau of Reclamation today released final technical reports supporting the Water Reliability in the West - 2021 SECURE Water Act Report. Reclamation's 2021 West-Wide Climate and Hydrology Assessment and seven individual basin reports provide detailed information on climate change impacts and adaptation strategies to increase water supply reliability in the West. A new 2021 SECURE Report Web Portal is also available to provide a user-friendly, web-based format for delivery of information in the reports.
The 2021 West-Wide Assessment provides estimates of changes in temperature, precipitation, snowpack, and streamflow across the West using consistent methodology, similar to previous SECURE Water Act Reports. For this report, additional drought analyses based on paleohydrology (using tree rings) was performed. These results will enable water managers to compare the frequency and severity of droughts that occurred several hundred years ago to projections of future droughts and develop water management strategies in time to take action.
The West-Wide Assessment finds that temperatures are expected to increase across the West while precipitation changes are variable. With warmer temperatures, more precipitation will fall as rain and snow will melt sooner, reducing snowpack in the future that can impact streamflow timing. These key findings on future climate and hydrology are consistent with the conclusions of the 2016 SECURE Water Act Report.
News Release: Reclamation releases technical reports and interactive web tool supporting the 2021 SECURE Water Act Report (April 5, 2021)
- Colorado River Basin
- Columbia River Basin
- Klamath River Basin
- Missouri River Basin
- Rio Grande Basin
- Sacramento and San Joaquin Rivers
- Truckee River Basin
To help with the understanding of the information provided in the assessment and seven basin reports, Reclamation will be hosting a series of webinars. Each webinar will begin at 1 p.m. MDT on the date listed and will be recorded for later viewing if you are unable to attend. There will be time for questions during the webinar. The link is good to view the webinar live or recorded after the event is over.
April 12 - West-Wide Climate and Hydrology Assessment
April 15 - Missouri River Basin
April 20 - Columbia River Basin
April 23 - Colorado River Basin
May 04 - Rio Grande Basin
May 07 - Truckee River Basin
May 11 - Klamath River Basin
May 13 - Sacramento and San Joaquin Rivers Basin
To receive a reminder of the upcoming webinars, please fill this form and we will send you an email the morning of the webinar(s).