Two atmospheric rivers forecast to bring heavy rain to the Pacific Northwest through early November
Two atmospheric rivers are forecast to affect the Pacific Northwest between October 28 and November 2, 2025, bringing periods of heavy rainfall to western Washington and northern Oregon. The first system is expected to reach AR1 strength, while the second could intensify to AR3 or AR4 as it moves inland later in the week. Hydrologic models indicate notable river rises but no significant flooding at this time.










