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NOAA's National Weather Service
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WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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| Riverside County | ||
| Effective: Mon, 12/22 6:37pm | Severity: Moderate | |
| Updated: December 23, 2025 12:31 am | Urgency: Expected | |
| Expires: Tue, 12/23 6:15am | Certainty: Likely | |
| Areas Affected: San Diego County Coastal Areas - San Bernardino and Riverside County Valleys-The Inland Empire - San Diego County Inland Valleys - Santa Ana Mountains and Foothills - Orange County Coastal - Orange County Inland | ||
Alert
Details:
* WHAT...South winds 15 to 25 mph with gusts 30 to 40 mph expected. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN...From 3 AM to 10 PM PST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds for Orange County and the Inland Empire will be in the morning to early afternoon. Strongest winds for San Diego county will be mid to late morning into the evening. Information: Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. |
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| Riverside County | ||
| Effective: Mon, 12/22 9:31pm | Severity: Severe | |
| Updated: December 23, 2025 12:31 am | Urgency: Future | |
| Expires: Tue, 12/23 6:15am | Certainty: Possible | |
| Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Bernardino County Mountains - Riverside County Mountains - Santa Ana Mountains and Foothills - Apple and Lucerne Valleys - Coachella Valley - San Gorgonio Pass Near Banning - Orange County Coastal - Orange County Inland | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, Coachella Valley, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Gorgonio Pass near Banning and Santa Ana Mountains and Foothills. * WHEN...From late Tuesday afternoon through Wednesday 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. Mud and debris flow are possible near and in burn scars, including the Airport, Bridge and Line burn scars. * ADDITIONAL DETAILS... - An Atmospheric River will bring widespread moderate to heavy rain to the region late Tuesday through Wednesday. Showers could begin to develop as early as Tuesday evening, especially in the eastern San Gabriel Mountains. Heaviest and most widespread rain is expected Wednesday morning for the northwest portion of the forecast area and then spreading southeast through the day. Peak rainfall rates of 0.50 to 1 inch per hour are expected. There is a potential for locally heavier hourly rainfall rates to develop with convection embedded in the main rain band or in thunderstorms after the main band passes. Scattered locally heavy showers could continue into Thursday but impacts from any additional rain are expected to be more localized. Snow levels are expected to remain above 8000 ft during period of heaviest precipitation bringing a heightened risk of mud slides, debris flow, and areas of flash flooding in the San Bernardino county mountains. - https://www.weather.gov/safety/flood Information: 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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