Southern California is bracing for severe weather this weekend, as a powerful atmospheric river storm makes landfall. The weather is expected to peak on Saturday, particularly affecting Los Angeles County. Residents should prepare for potential mudflows, debris flows, and even the possibility of tornadoes.
Weather Forecast and Potential Impact
Forecasts indicate that downtown Los Angeles could experience its wettest November since 1985 if the predicted rainfall materializes. Rainfall rates may reach as high as 1.25 inches per hour. Such intense precipitation raises the likelihood of damaging flooding and landslides in vulnerable areas, particularly near recent burn scars from the Eaton and Palisades fires.
Key Timing and Warnings
The severe weather threat will span much of Saturday, from midnight to 9 p.m. A flood watch is in effect for a significant portion of Southern California from 4 a.m. to 10 p.m. Areas near burn scars are under evacuation warnings until 11 a.m. Sunday due to the heightened risk of mud and debris flows.
Rainfall Projections
Forecasters predict a total rainfall accumulation of about 2.62 inches for downtown L.A. by the end of the weekend, a figure that could redefine November’s rainfall record. However, there’s a significant variation in projections, with some forecasts suggesting a worst-case scenario of 4.81 inches, leading to severe mudflows.
Geographic Variability in Rainfall
- Los Angeles County: Up to 4.81 inches possible
- San Diego: 2 to 2.5 inches anticipated
- Santa Barbara: Expected to receive 4.21 inches
- Long Beach: Forecast to accumulate 2.38 inches
- Palm Springs: Projected 1 to 1.5 inches
Warnings and Safety Precautions
Residents are advised to stay indoors during severe weather conditions. Those who must venture outside should avoid flooded roadways, as even shallow waters can pose dangers. Safety officials warn that tornadoes, while rare in California, can occur and may result in localized damage.
Storm Dynamics and Challenges
The approaching storm is driven by a “cut-off low” which complicates forecasting. Meteorologists note that predicting the storm’s exact path is challenging. These low-pressure systems tend to be unpredictable, resulting in varying rainfall impacts across different counties.
Looking Ahead
Beyond this weekend, another storm system could affect Southern California early next week. Though initially expected to have minor impacts, meteorologists are monitoring this later system closely for potential intensification.
In summary, Southern California must prepare for significant weather challenges this weekend as heavy rains could create hazardous conditions, particularly in areas affected by recent wildfires. Residents should remain vigilant and ready to respond to changing conditions.
