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Storm Mario’s Remnants Drench Southern California, Southwest
Storm Mario’s Remnants Drench Southern California, Southwest
US · Published Sep 19, 2025
• Tropical Storm Mario's remnants caused mudslides and flash floods in Southern California and the Desert Southwest.
• San Bernardino and Kern Counties were significantly impacted by debris flows and highway flooding.
• NOAA issued a Level 2 flash flood threat for parts of California, Arizona, and Nevada.
Mario's remnants bring floods to Southern California
The remnants of Tropical Storm Mario brought significant rainfall to Southern California and the Desert Southwest on Thursday, resulting in mudslides and flash flooding.
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