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Updated:December 31, 2025 7:01 am PST

Flood Watch FLOOD WATCH  
Riverside County

  Effective: Wed, 12/31 12:03am Severity:  Severe 
  Updated: December 31, 2025 7:01 am Urgency: Future
  Expires: Wed, 12/31 2:00pm Certainty: Possible

Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Bernardino County Mountains - Santa Ana Mountains and Foothills - 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: 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 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

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.