What is an atmospheric river and how did it impact Southern California?

An atmospheric river is a long, narrow region in the atmosphere that transports large amounts of water vapor. The powerful atmospheric river that hit Southern California over the weekend brought heavy rain, leading to flooding and at least 6 fatalities.

How many people were killed due to the atmospheric river in Southern California?

According to the article, at least 6 people were killed in incidents linked to the powerful atmospheric river that drenched the region over the weekend.

What is the National Weather Service warning about the upcoming weather in Southern California?

The National Weather Service has warned that a new storm system is approaching Southern California and is expected to hit the area on Monday afternoon, bringing more rain and potential for further flooding and rockslides.

Home / Disasters and Accidents / Deadly Atmospheric River Leaves Trail of Destruction Across Southern California

Deadly Atmospheric River Leaves Trail of Destruction Across Southern California

17 Nov

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Summary

At least 6 killed in incidents linked to powerful storm
Flooding is second deadliest weather hazard nationwide
New storm system expected to hit Southern California on Monday

Deadly Atmospheric River Leaves Trail of Destruction Across Southern California

On November 17, 2025, a powerful atmospheric river that drenched Southern California over the previous weekend has left a trail of destruction in its wake. According to several local and federal agencies, at least 6 people were killed in incidents linked to the extreme weather event.

The California Governor's Office of Emergency Services has stated that it could take a week or more to determine the final statewide tally of fatalities associated with this weather event. Atmospheric rivers are known to bring heavy snow, rain, and strong winds, often leading to devastating flooding. Tragically, flooding is the second deadliest weather hazard nationwide, with many fatalities occurring when vehicles are swept away by rising waters.