This bill establishes new pilot projects and a dedicated program to significantly improve subseasonal to seasonal forecasts for atmospheric rivers, aiming to reduce damage from these major moisture events in the Western US.
Jay Obernolte
Representative
CA-23
This bill establishes new pilot projects and a dedicated program to significantly improve subseasonal to seasonal forecasts for atmospheric rivers, which are crucial for water management in the West. The legislation directs NOAA to advance the science behind these moisture-laden storms, focusing on better modeling for mountainous terrain and storm track prediction. The ultimate goal is to create more accurate, actionable forecasts and warnings to reduce the damage caused by these major weather events.
If you live in the Western US, you know the cycle: bone-dry years followed by massive, destructive floods delivered by what scientists call "atmospheric rivers." The Improving Atmospheric River Forecasts Act is essentially a multi-year, multi-million dollar federal plan to get better at predicting these events, aiming to save lives and manage water better.
This bill doesn't just ask for better weather apps; it targets the deep science of long-range forecasting. The core of Section 2 mandates that the National Oceanic and Atmospheric Administration (NOAA) launch pilot projects to improve subseasonal and seasonal precipitation forecasts. Think weeks or months out, not just days. For a farmer or a city water manager, knowing whether the next three months will bring 50% or 150% of normal snowpack is a game-changer for planting schedules, reservoir releases, and drought preparedness. The projects must specifically tackle tough problems like modeling how much rain or snow falls in mountainous areas and accurately predicting those massive moisture plumes.
Section 3 ramps up the effort by creating a formal Atmospheric River Forecast Improvement Program. The goal here is simple but huge: reduce the damage—the lost property, the economic disruption—caused by these storms. This program is required to build a next-generation forecast system that can predict these events from seasonal outlooks down to short-range warnings. The bill specifically mandates incorporating things like artificial intelligence and machine learning into the models, and ensuring that ocean observations (both surface and deep water) are good enough to support the forecasts.
This is where the rubber meets the road for everyday folks. If you’re a homeowner in a flood-prone area, better forecasts mean more time to prepare or evacuate. If you’re a construction worker, better seasonal outlooks help companies plan large projects without getting blindsided by unexpected months of rain or snow. The bill also requires NOAA to start using specialized aircraft for reconnaissance missions—think hurricane hunters, but for atmospheric rivers—to gather critical data during storm season. This means the data going into the models will be fresher and more accurate, leading to better warnings for everyone.
Crucially, the legislation requires integrating social, behavioral, and risk communication science into the program. This means NOAA isn't just focused on making the numbers better; they have to figure out how to communicate the danger effectively. They need to develop clear, quantitative scales for storm intensity and gather feedback from communities hit by floods to see if their warnings actually worked. Because a forecast is useless if people don't understand what it means for them.
To make all this happen, the bill authorizes up to $15,000,000 annually from fiscal years 2026 through 2030 for the pilot projects. While this investment is critical for infrastructure and research, it’s important to remember this is an authorization, not guaranteed money. Congress still has to approve the actual spending each year. This money is earmarked from NOAA’s existing Operations, Research, and Facilities budget, meaning the funds could potentially be shifted from other NOAA programs. Finally, within 270 days of the bill becoming law, the Under Secretary must produce a detailed, public master plan outlining the research, partnerships, and funding timelines, which gives us a clear roadmap for accountability.