Spring 2024 | Atmospheric Rivers (ARs) are large streams of atmospheric moisture that form over the ocean and flow to the coast. Complex air-sea and land-atmosphere interactions associated with land-falling ARs cause heavy rainfall and flooding, among other harmful consequences across the western U. S. states and further inland. Across the 11 western states, damages average approximately $1B per year with cumulative impacts of ARs for the recent 2022-2023 winter estimated at $4.6B.… Read More