A severe winter storm is currently battering Southern California, bringing life-threatening flooding conditions and prompting evacuation orders in the Los Angeles area. The National Weather Service (NWS) has issued flood watches affecting nearly 42 million residents, with heavy rainfall expected to persist through the week.
This storm is classified as a “strong atmospheric river,” with the NWS reporting that the most intense rainfall is currently occurring in the L.A. Basin. As of December 24, emergency responders have been evacuating residents from homes in San Bernardino County due to flash floods and the risk of mud and debris flows.
Severe Weather Conditions Ahead
The NWS has flagged a “rare High Risk of Excessive Rainfall” for the region, particularly in the Los Angeles metropolitan area. This alert will remain in effect through Christmas Day, with warnings of “life-threatening atmospheric river conditions.”
According to the NWS, widespread flash flooding is already taking place, characterized by persistent rainfall rates of between 0.5 to 1 inch per hour. The combination of heavy rains and saturated soils is expected to lead to significant power outages and damage to trees across the area.
“Flash and urban flooding will be a major concern, as well as dangerous rock and mudslides throughout Southern California,” the NWS stated. Adjacent areas in Northern and Central California, including the Bay Area, as well as Southern Nevada, are also on alert for possible flash flooding through December 25.
Impact on Travel and Infrastructure
The extreme weather has resulted in numerous road closures across the region. In the Sierra Nevada mountains, snowfall totals are expected to reach several feet, making travel over mountain passes impossible for the duration of the storm.
Photographs from the region depict flooded streets and significant weather-related disruptions. An evacuation order was issued for a play area at the Ventura Beach RV Resort due to flooding from the nearby Ventura River.
As the storm continues to develop, residents are advised to stay informed about changing conditions and heed evacuation orders where necessary. The NWS will provide ongoing updates regarding weather forecasts and safety measures.
This situation remains dynamic, and further developments are anticipated as the storm progresses.
