Atmospheric River California 2024 Season. The first atmospheric river storm of the season is forecast to slam into northern california starting wednesday, a powerful system expected to bring the rainiest weather to the. Meteorologists forecast that the first half of winter will produce atmospheric rivers in the pacific northwest and northern california before the storms trek inward over the rocky mountains.

The storm, driven by the season’s first major atmospheric river, inundated the region, killing at least three people and causing widespread power outages. 2021, for instance, san francisco.