A broad swath of moisture is spreading from the Plains into the Midwest, Great Lakes, and eastern U.S. through the end of the week. The heaviest totals are concentrated across the Great Lakes, Ohio Valley, and interior Northeast, where precipitation falls primarily as snow, while lower elevations farther south see a mix of rain and snow. Lighter but persistent precipitation continues across the Pacific Northwest and northern Rockies, supporting ongoing mountain snowfall as the active storm track remains in place.
