The Pacific Northwest may experience a drier and warmer winter, which could negatively impact mountain snowpacks and water resources. Conversely, California faces heightened risks of severe atmospheric rivers and flooding, as seen in past El Niño events. The potential for extreme weather, such as record-breaking rainfall or even rare tropical storm remnants reaching California, is also on the table. While the Pacific Northwest might avoid the brunt of these impacts, short-term shifts in jet stream patterns could still bring heavy rain or even rare snow events to the region.