Flood Watch

Locations Affected

Riverside, CA ∙ San Bernardino, CA ∙ Anaheim, CA ∙ Irvine, CA ∙ Santa Ana, CA ∙ Huntington Beach, CA ∙ Fullerton, CA ∙ Orange, CA ∙ Corona, CA ∙ Fontana, CA

Full Alert Message

Flood Watch National Weather Service San Diego CA 1145 AM PST Wed Dec 31 2025 ...FLOOD WATCH REMAINS IN EFFECT FROM 10 PM PST THIS EVENING THROUGH THURSDAY EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire and Santa Ana Mountains and Foothills. * WHEN...From 10 PM PST this evening through Thursday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Minor flooding and debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS... - A warm low pressure system from the southwest will bring periods of moderate to locally heavy precipitation tonight through Thursday evening. The heaviest showers are likely to occur Thursday morning. High soil moisture from last week's heavy rainfall and will exacerbate the flooding threat in the watch area. - https://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Be alert in the mountains for rockslides and rocks in the road.

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