Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow. 

Low pressure will send in copious amounts of moisture to Northern California and southern Oregon this afternoon into Monday causing areas of heavy rain and mountain snow. Cities like San Francisco and Redding in California will have to deal with wet roadways and even some could become flooded. Mudslides could also become an issue for areas north of the Bay area. 

Rain amounts of 1-3 inches will be commonplace across Northern California into southwestern Oregon through Monday, with local amounts up to 4-6 inches likely in the foothills and near mountains due to upslope. This will lead to flooding concerns. Remember to "Turn Around, Don't Drown!", if roadways are flooded or submerged in water. 

Flood Watches are in effect for much of the Sacramento Valley and areas to the north of San Francisco. Flood Watches are also in effect across the San Joaquin Valley covering an event in the future around the middle part of next week when the atmospheric river shifts its focus to there. 

Snow will continue to fall in the Cascades of Washington and Oregon at times today through Monday. An additional 1-2 feet of snow is possible in the Cascades of Washington, while 5-10 inches can occur in the Cascades of Oregon. 

Winter Storm Warnings and Winter Weather Advisories are in effect for the Cascades. 

Be sure to download the WeatherBug app to stay up to date on the latest on this changing weather. It’s never too early to have a supply kit packed in case of inclement weather. A simple kit including a weather radio, water, blankets, batteries, and non-perishable food items will go a long way in the event of a power outage.