212 
WGUS66 KSGX 251753
FFASGX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service San Diego CA
953 AM PST Thu Dec 25 2025

CAZ048-055-060-260200-
/O.NEW.KSGX.FA.A.0007.251226T0800Z-251227T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Crestline, Big Bear City, Corona,
Ontario, Moreno Valley, Wrightwood, Running Springs, Big Bear
Lake, Victorville, Riverside, Fontana, San Bernardino, Rancho
Cucamonga, Hesperia, Lucerne Valley, Lake Arrowhead, and Apple
Valley
953 AM PST Thu Dec 25 2025

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY 
AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...A portion of Southwest California, including the following 
  areas, Apple and Lucerne Valleys, San Bernardino County Mountains 
  and portions of the northern Inland Empire adjacent to the San 
  Bernardino County Mountains.

* WHEN...From late tonight through Friday afternoon.

* 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...
  - Extensive heavy rainfall in the San Bernardino Mountains that
    resulted in instances of flash flooding and debris flow in
    the mountains and adjacent drainages in the northern Inland
    Empire and High Desert yesterday have saturated the soils and
    drainage banks. An additional 1-3 inches (and locally up to 4
    inches) of rainfall is expected in the mountains tonight.

    While rainfall rates will be generally lighter than yesterday
    (closer to 0.2-0.5"/hr), the saturated soils and drainage
    banks will likely be more susceptible to flash flooding with
    the additional rainfall.

    Snow levels will generally be around 7500-8000ft for this
    secondary round of precipitation tonight and Friday.

  - 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.

&&

$$

Munyan