U.S. Alerts |
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NOAA's National Weather Service
Each location shows all alerts on one page:
WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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Riverside County | ||
Effective: Thu, 9/18 5:14am | Severity: Minor | |
Updated: September 18, 2025 7:00 am | Urgency: Expected | |
Expires: Thu, 9/18 7:15am | Certainty: Likely | |
Areas Affected: Riverside, CA | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southern California, including the following county, Riverside. * WHEN...Until 715 AM PDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 513 AM PDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1 inch of rain has fallen. - Some locations that will experience flooding include... Eagle Mtn. - http://www.weather.gov/safety/flood Information: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. |
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Riverside County | ||
Effective: Thu, 9/18 12:18am | Severity: Severe | |
Updated: September 18, 2025 7:00 am | Urgency: Future | |
Expires: Thu, 9/18 2:30pm | Certainty: Possible | |
Areas Affected: Parker Valley - Kofa - Yuma - Central La Paz - Gila River Valley - Palo Verde Valley | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest Arizona, including the following areas, Central La Paz, Gila River Valley, Kofa, Parker Valley and Yuma and southeast California, including the following area, Palo Verde Valley. * WHEN...From 5 AM MST /5 AM PDT/ early this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Abundant moisture has moved into southeast California and southwest Arizona and this will help to bring scattered thunderstorms producing heavy rainfall by late morning and through the evening hours today. Localized rainfall amounts of 1-2 inches are likely to occur. - http://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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Riverside County | ||
Effective: Thu, 9/18 12:18am | Severity: Severe | |
Updated: September 18, 2025 7:00 am | Urgency: Future | |
Expires: Thu, 9/18 2:30pm | Certainty: Possible | |
Areas Affected: Joshua Tree NP West - Joshua Tree NP East - Imperial County Southwest - Salton Sea - Chuckwalla Mountains - Imperial County Southeast - Imperial County West - Imperial Valley - Chiriaco Summit - Chuckwalla Valley | ||
Alert
Details:
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southeast and southern California, including the following areas, in southeast California, Chuckwalla Mountains, Chuckwalla Valley, Imperial County Southeast, Imperial County Southwest, Imperial County West, Imperial Valley and Salton Sea. In southern California, Chiriaco Summit, Joshua Tree NP East and Joshua Tree NP West. * WHEN...From 5 AM PDT early this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Abundant moisture has moved into southeast California and southwest Arizona and this will help to bring scattered thunderstorms producing heavy rainfall by late morning and through the evening hours today. Localized rainfall amounts of 1-2 inches are likely to occur. - http://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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Riverside County | ||
Effective: Thu, 9/18 2:16am | Severity: Severe | |
Updated: September 18, 2025 7:00 am | Urgency: Future | |
Expires: Thu, 9/18 3:45pm | Certainty: Possible | |
Areas Affected: San Bernardino County Mountains - Riverside County Mountains - San Diego County Mountains - Apple and Lucerne Valleys - Coachella Valley - San Diego County Deserts - San Gorgonio Pass Near Banning | ||
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, Riverside County Mountains, San Bernardino County Mountains, San Diego County Deserts, San Diego County Mountains and San Gorgonio Pass near Banning. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Scattered showers and thunderstorms will spread northward across the area today with the most likely time for more widespread and heavier rainfall from the morning through early evening. Some thunderstorms may produce locally heavy rainfall, which may lead to flooding. The most likely peak hourly rainfall is one-half to one inch with isolated maximum hourly rainfall to 2 inches. - 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. |