I 119th CONGRESS 1st Session H. R. 3857 IN THE HOUSE OF REPRESENTATIVES June 10, 2025 Mr. Hurd of Colorado (for himself and Mr. Neguse ) introduced the following bill; which was referred to the Committee on Natural Resources A BILL To amend the Snow Water Supply Forecasting Program Authorization Act.

1. Short title This Act may be cited as the Snow Water Supply Forecasting Reauthorization Act of 2025 . 2. Snow Water Supply Forecasting Program Section 1111 of the Snow Water Supply Forecasting Program Authorization Act ( 43 U.S.C. 1477 ) is amended— (1) in subsection (c)(2)— (A) in subparagraph (A), by striking culminating in the report required under subsection (d)(3) and inserting with an emphasis on deployment of technologies that provide integration of snowpack measuring and modeling ; and (B) in subparagraph (B), by striking after submitting the report required by subsection (d)(3), ; (2) in subsection (d)— (A) in paragraph (1)— (i) in the heading, by adding with integrated modeling after data ; (ii) by striking emerging technologies for snowpack measurement, such as and inserting commercially available technologies that provide complete integration of accurate, timely, and spatially complete snowpack measurements and models, including the integration of ; and (iii) by striking subparagraphs (A) through (C) and inserting the following: (A) airborne laser altimetry; (B) airborne imaging spectroscopy; (C) integrated physics-based snowpack and hydrologic modeling; and (D) other technologies that the Secretary determines are likely to provide more accurate or timely snowpack measurement data commensurate with operational water management needs. ; and (B) by striking paragraph (3); (3) in subsection (e)— (A) in paragraph (1), by striking After submitting the report required under subsection (d)(3), the and inserting The ; and (B) by striking paragraph (2) and inserting the following: (2) Focus The program shall focus on activities that will maintain, establish, expand, or advance snowpack measurement and integrated modeling, with an emphasis on— (A) enhancing activities to achieve improved snow and water supply forecasting results that are more responsive to changing weather and watershed conditions; (B) real-time integration of activities described in this section with water supply forecasts; (C) activities in river basins where activities described in this section can produce snow and water supply data to inform water management decisions, including interstate water management decisions; and (D) building program partners’ capacity to implement and adapt to the new measurement and forecast capabilities enabled under this program. ; (4) in subsection (f)— (A) by striking of this Act and inserting of the Snow Water Supply Forecasting Reauthorization Act of 2025 ; (B) in paragraph (1)— (i) by striking and sub-basins ; (ii) by striking technologies and inserting and integrated modeling technologies ; and (iii) by striking technology used and inserting application, outcome, and data resources used ; and (C) in paragraph (2), by striking or sub-basin ; and (5) in subparagraph (g), by striking , in the aggregate, for fiscal years 2022 through 2026 and inserting for each of fiscal years 2027 through 2031 .