Southern California was struck by a magnificent storm that brought about historic downpours and evacuations
The recent weather in California, especially in December 2023, has been marked by a series of severe storms, which have led to substantial emergency response and recovery efforts across the state. These efforts have been in response to an atmospheric river that brought significant rainfall and snow to various regions, including Northern and Southern California.
The storm has had varied impacts across the state, necessitating a widespread and coordinated response from various state agencies and the national government.
Atmospheric River Impact and Forecast
A low-pressure system associated with an atmospheric river brought heavy rain and high-elevation snow to Northern California. Due to the storm’s warmer nature, snow totals were expected to be lighter, with snow levels initially high at around 8,000 feet, dropping to about 6,500 feet later in the week.
The valley regions expected to receive 1.5-2.5 inches of rain, with up to 4 inches in the foothills. Gusty winds of 25-35 mph were also anticipated, especially over the Sierra. This storm marked the first significant rainfall in 10 days for the region, with the statewide snowpack being only 28% of average.
The storm was expected to move southward towards Southern California by Wednesday, with a cooling trend and dry weather anticipated for the remainder of the week, though models hinted at potential activity after Christmas.
Statewide Emergency Response
Governor Gavin Newsom has declared a state of emergency in 43 counties due to the severe winter storms that began in late February. This declaration has enabled federal assistance to support storm response and recovery efforts.
The state is actively working to maximize federal aid for impacted communities and assessing the damage to determine if the criteria for a Major Disaster Declaration are met. More than 4,000 crew members from Caltrans have been mobilized to keep roads open and respond to emergencies, and the California Highway Patrol (CHP) has increased patrols and is assisting with road closures and evacuations.
Comprehensive Response by Various Departments
- CAL FIRE, the California National Guard, and other agencies are actively involved in the response. CAL FIRE has deployed crews and damage inspection teams, while the California National Guard has deployed soldiers and high-water vehicles for flood and rescue operations. The Cal OES and Emergency Medical Services Authority have pre-positioned resources for flood response, and the Department of Water Resources has deployed flood fight specialists and distributed sandbags and plastic sheeting.
- The Department of General Services is providing support for storm response, including sandbags, heavy machinery, and shelter services. The California Department of Social Services is coordinating supplies and has opened 22 shelters across 11 counties. The Labor and Workforce Development Agency is working with local partners to provide resources and support to impacted communities, focusing on outreach and assistance for immigrants and Indigenous communities.
The combined efforts of these agencies underscore the significant impact of the storms on California and the state’s commitment to ensuring the safety and recovery of its residents. The situation remains dynamic, with ongoing efforts to address the aftermath of the storms and prepare for potential future weather events.