Northern California under flood watch as the region prepares for an intense atmospheric river storm system that threatens to bring unprecedented rainfall totals and potential flooding, with another powerful storm following closely behind.
The National Weather Service has issued flood watches and warnings across much of Northern California as the first atmospheric river moves into the area. This moisture-rich weather system is pulling tropical water vapor from the Pacific Ocean, creating conditions for extreme precipitation.
Weather forecasters predict rainfall totals could reach 3 to 6 inches in valley areas and 6 to 12 inches in mountainous regions through the weekend. Some isolated areas in the California river systems may see even higher amounts approaching record levels.
Adding to concerns, a second atmospheric river system is expected to arrive early next week, bringing additional heavy rainfall to already saturated ground. The combination of back-to-back storms raises flooding risks for streams, rivers and urban areas.
Local emergency management officials are urging residents to prepare emergency kits, clear storm drains, and stay informed about evacuation notices. The heavy rainfall could trigger mudslides in steep terrain and areas previously affected by wildfires.
The atmospheric river events are part of an active winter storm pattern that has brought much-needed precipitation to California. While the rainfall helps ease drought conditions, the intensity of these systems poses hazards for communities in their path.
Officials recommend residents:
- Monitor local weather updates and warnings
- Avoid driving through flooded roadways
- Have emergency supplies ready
- Keep storm drains clear of debris
- Follow evacuation orders if issued
Emergency response teams are positioning resources across Northern California to assist with potential flooding, mudslides, and water rescues as these powerful storms move through the region.