Atmospheric River Southern California 2025 Season. Atmospheric rivers will tend to impact central and southern california during january, the accuweather forecast said, before returning to the northern part of california to. Because of the rain and subsequent meltwater,.

Atmospheric rivers will tend to impact central and southern california during january, the accuweather forecast said, before returning to the northern part of california to. The ongoing atmospheric river will be mostly aimed at northern california and southern oregon through late tuesday or early wednesday, at which point it will begin to.