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Southern California Storm Forecast Worsens, Bringing Flood and Mudslide Risks

7 months agoUS
Southern California Storm Forecast Worsens, Bringing Flood and Mudslide RisksSource: latimes.com
Southern California is bracing for another intense storm, exacerbating flood risks and potential mudslides after a series of recent rainfalls. The region faces a heightened threat as forecasters warn of heavy downpours and possible thunderstorms.

Key Insights

Flood Watch Issued:: A flood watch is in effect for much of Los Angeles County from Thursday night through Friday morning. Why this matters: Rainfall rates of nearly 1 inch per hour are possible, potentially triggering flooding and debris flows in already saturated ground.

Severe Weather Threat:: The storm could rotate over southern L.A. County, posing a small tornado risk. The National Weather Service warns of potential thunderstorms with isolated heavy downpours and wind gusts up to 50 mph.

Brush Fire Season Over:: The Ventura County Fire Department declared brush fire season officially over due to the recent rain. This provides some relief after a historically dry start to the water year.

Record Rainfall:: Santa Barbara Airport recorded its wettest November since 1941, with 8.42 inches of rain. Downtown Los Angeles experienced its wettest November in over 40 years, with 3.48 inches of rain.

In-Depth Analysis

Southern California is experiencing a barrage of storms, leading to significant rainfall and increased risks of flooding and mudslides. The latest storm, hitting the region on Thursday, is expected to bring heavy rain through Friday, with potential for thunderstorms and even a small tornado. The ground is already heavily saturated from previous storms, increasing the likelihood of debris flows, especially in recently burned areas.

Despite the challenges, the rain has brought some positive impacts. Ventura County has declared the end of brush fire season, and the region's reservoirs are surging. However, residents are urged to stay vigilant and prepare for potential power outages and travel disruptions. Key areas of concern include foothill communities in the Inland Empire, where residents are preparing for possible mudslides and debris flow. The unusual evolution of this storm, powered by a "cut-off low," makes it harder to predict, adding to the uncertainty.

FAQs

What areas are most at risk for flooding?

Areas throughout Los Angeles County are under a flood watch, with foothill and mountain regions facing increased risk due to saturated ground.

How much snow is expected?

3 to 6 inches of snow is expected above 6,000 feet, likely skipping the 5 Freeway through the Grapevine.

What is the long-term forecast?

High pressure is expected to bring clear conditions and normal temperatures for the Thanksgiving holiday week.

Key Takeaways

Stay informed about local weather updates and emergency alerts.

Avoid unnecessary travel during heavy rainfall.

Be prepared for potential power outages and flooding.

Understand that this rainfall has helped to diminish the fire risk for the time being.

Review emergency plans and ensure access to emergency supplies.

Discussion

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