Atmospheric River California October 2025 Predictions. A stronger atmospheric river is set to hit northern california on monday and then hit los angeles county on tuesday, aiding hopes of a more definitive end to a devastating fire. Powerful storms this week are elevating the risk of flooding from san francisco to the north and bringing rain to areas burned by last month’s wildfires around los angeles.

Several atmospheric river events struck the state in january and march, bringing down record rain amounts, flooding, and in the mountains, near record snowpack levels. The first storm has already.