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Climate & Environment

Heavy rain in the forecast brings greater mudslide risk

An electronic sign warns of possible mudslide flooding along a mountain road.
A sign posted near the Bridge Fire burn area last month near Mount Baldy.
(
Mario Tama
/
Getty Images
)

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Topline:

Another storm is on the way next week with forecasts showing more than 2 inches of rain could fall on Southern California over a 24-hour period. That would likely be more than enough precipitation to trigger mudslides, especially in recently burned areas.

The risk ahead: The Eaton, Palisades and Hughes fire burn scars could see debris flows if rainfall rates exceed half an inch per hour, according to the U.S. Geological Survey. We'll have a better understanding of the risk by early next week since the storm, which is forecast to arrive starting Wednesday, is still a bit far out.

Rainfall totals: This week's storms dropped less than an inch of rain in some spots and more than 2 inches in others. Isolated pockets of heavy precipitation caused minor debris flows.

The context: We're still behind in terms of rain this year. Extreme drought conditions are still present across the southern part of the state, according to the U.S. Drought Monitor.

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