Hazard Report Provided By forecast.weather.gov

Flood Watch
National Weather Service San Diego CA
737 PM PST Tue Dec 30 2025

CAZ048-055-057-552-554-311415-
/O.CON.KSGX.FA.A.0008.260101T0600Z-260102T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Bernardino County Mountains-Santa Ana Mountains and Foothills-
Orange County Coastal Areas-Orange County Inland Areas-
Including the cities of Crestline, Fontana, Big Bear City, Lake
Arrowhead, Anaheim, Riverside, Fullerton, Ontario, San Clemente,
Corona, Rancho Cucamonga, Costa Mesa, San Bernardino, Irvine,
Mission Viejo, Big Bear Lake, Moreno Valley, Garden Grove,
Orange, Huntington Beach, Wrightwood, Laguna Beach, Newport
Beach, Running Springs, and Santa Ana
737 PM PST Tue Dec 30 2025

...FLOOD WATCH REMAINS IN EFFECT FROM WEDNESDAY 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 Wednesday 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 Wednesday
    night through Thursday evening. Most of the heavy 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.

&&

$$

SS

Hazard Report Provided By forecast.weather.gov