Weather AlertsIssued by the National Weather Service |
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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 |
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| Effective: Mon, 12/22 12:23pm | Updated: Mon, 12/22 3:29pm | Urgency: Future |
| Expires: Mon, 12/22 10:15pm | Severity: Severe | Certainty: Possible |
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 Tuesday afternoon through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. 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 likely 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 mountains. Heaviest and most widespread rain is expected Wednesday morning continuing through the afternoon in the Coachella Valley and in the mountains. 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. |
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Areas Affected: San Bernardino County Mountains - Apple and Lucerne Valleys |
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| Effective: Mon, 12/22 12:19pm | Updated: Mon, 12/22 3:29pm | Urgency: Future |
| Expires: Mon, 12/22 10:15pm | Severity: Severe | Certainty: Possible |
Details:
* WHAT...South winds 20 to 30 mph with gusts 45 to 65 mph possible in the High Desert. Winds 30 to 40 mph with gusts 60 to 70 in the mountains, locally up to 80 mph possible on the desert slopes of the mountains. * WHERE...Apple and Lucerne Valleys and San Bernardino County Mountains. * WHEN...From Tuesday afternoon through Thursday afternoon. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. Information: Monitor the latest forecasts and warnings for updates. |
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