"Understanding the Impact of Atmospheric Rivers: From Heavy Rain to Evacuations"

Heavy rain and flooding in the Pacific Northwest have caused two deaths in Oregon, with authorities suspecting drowning as the cause. The region has experienced landslides, road closures, and disrupted rail service due to the robust atmospheric river. Flood watches and warnings are in effect across Washington, Oregon, northern Idaho, and far northwest Montana. The heaviest rain is expected to shift to western portions of Oregon and eventually northern California, potentially causing flooding in poor drainage areas. Meanwhile, snow showers in the central Appalachians will end early Wednesday, and a warming trend with above-average temperatures is forecasted for the central US.