Snow Water Supply Forecasting Reauthorization Act of 2025

Bill Summary: Snow Water Supply Forecasting Reauthorization Act of 2025 (H.R. 3857)

Overview

The Snow Water Supply Forecasting Reauthorization Act of 2025 (H.R. 3857) is designed to reauthorize and modernize the Snow Water Supply Forecasting Program. Originally established in 2020, this program is administered by the Bureau of Reclamation and focuses on using advanced technology to improve the accuracy of snowpack measurements, which are critical for forecasting water supplies and managing water resources.

Main Purpose and Intent

The primary goal of this legislation is to transition the program from a phase of "studying" emerging technologies to a phase of "deploying" and "integrating" them. By refining how snowpack is measured and modeled, the bill aims to provide water managers and end-users with more accurate, timely, and spatially complete data to make informed decisions regarding water allocations and disaster mitigation.

Key Provisions and Changes

1. Modernization of Technology

The bill shifts the program's focus toward the integration of measurement and modeling. Specifically, it authorizes the use of:
* Airborne Laser Altimetry: Using aircraft-based lasers to measure snow depth.
* Imaging Spectroscopy: Using advanced imaging to analyze snow properties.
* Physics-Based Modeling: Implementing integrated hydrologic and snowpack models.
* Secretary's Discretion: Allowing the Secretary to adopt other technologies that meet operational water management needs.

2. Enhanced Program Focus

The program's objectives are expanded to emphasize:
* Responsiveness: Creating forecasts that better reflect changing weather and watershed conditions.
* Real-Time Integration: Ensuring data is integrated into water supply forecasts in real-time.
* Strategic Mapping: Focusing on river basins where data can most effectively inform interstate water management decisions.
* Capacity Building: Helping program partners adapt to and implement these new technological capabilities.

3. Agency Coordination

To avoid duplication of effort, the bill explicitly mandates coordination between the Bureau of Reclamation and other federal agencies, specifically naming the National Oceanic and Atmospheric Administration (NOAA) and the Natural Resources Conservation Service (NRCS).

4. Funding and Timeline

The bill provides a clear financial roadmap for the program's continuation:
* Authorization: It authorizes $6.5 million per year for each fiscal year from 2027 through 2031.
* Reporting: The Secretary is required to submit a comprehensive implementation report to Congress within four years of the Act's enactment.

Who is Affected?

• Water Managers: Will have access to higher-precision data for managing dams, reservoirs, and allocations.
• Agricultural and Municipal Water Users: Will benefit from greater certainty and reliability in water supply forecasts.
• Program Partners: Water districts, irrigation districts, universities, state agencies, and private sector entities can enter into cooperative, cost-sharing agreements with the federal government.
• Federal Agencies: The Department of the Interior, NOAA, and NRCS will collaborate more closely on geospatial and hydrologic data.

Procedural Status

The bill was introduced by Representative Jeff Hurd (R-CO) and passed the House of Representatives on December 10, 2025. It was subsequently referred to the Senate Committee on Energy and Natural Resources.