Extreme rainfall forecast for Northern California and the southwest corner of Oregon the rest of the week and into early next week. High winds accompanying the storm may cause power outages.
Here is a detailed map where flooding is most likely.
On some of the higher peaks, as much as 20 inches of rain is forecast to occur.
In San Francisco, amounts will be substantial, generally in the 3 to 4 inches range. However, Mount Tam may have more than seven inches by early next week.
Seattle may have 4 inches or more. And, for the first time this season, Los Angeles will be affected by an atmospheric river but the amounts will only be around a quarter inch with as much as a half-inch in the higher elevations…