Home › Forums › Weather & Weather Stations › SEVERE Rainfall, Christmas 2025

  • Author
    Posts
  • December 21, 2025 at 9:59 AM #23278
    Luke Berger
    Board Member

    Due to the Atmospheric River that is pushing in from the Pacific, we have some severe rainfall forecast for San Bernardino.

    Starting Tuesday night and going into Wednesday early morning and daytime (DEC 23-24) there is 2 to 3 inches of rainfall forecast. Wednesday afternoon to Friday will see tapering off with 1/2 inch of rain per day until the sun peeks out again Saturday.

    Please be informed and clearly warned – this amount of rainfall in a short period of time has the potential for significant destruction in the area due to flash floods.  Roads will be washed out and made impassable, it is highly likely we could lose the Marshall Road for some time if the damage is severe enough.  We expect damage to Ben Canyon Road (the entry road to the LZ), so please avoid coming to the LZ at all during this period.  There is also a high potential for serious damage to various areas around the City of SB, Crestline, and surrounding areas.  There will be other roads washed out for sure, possible power loss, and numerous other problems caused by flash flooding.

    The BOD would highly recommend that all members avoid going to AJX at all during this week (Dec 22 – 26) while this heavy rainfall is forecast.

    I’ll be out with the Tractor to fix the damage as soon as its safe/practical. We will also be in contact with the SB National Forest Engineers to coordinate repairs to the Marshall Road (N-240).

    December 21, 2025 at 10:06 PM #23285
    Dan DeWeese

    2 to 3 inches.  Thats it?

    December 23, 2025 at 8:33 PM #23294
    Luke Berger
    Board Member

    Dan,

    2 to 3 inches in ONE night, that starts tonight and continues into Wednesday morning.  That’s as much rainfall in one day that we would normally get in an average winter month.  Up to 8 inches is forecast for the week = almost as much rain for the entire winter in one week.

    This has the potential, if it comes down as much as forecast, to be pretty devastating.  The Mountain towns will likely be hit hardest, especially the cuts from previous fires.  I expect extensive damage to roads and potential mudslides.

    Stay safe up on the mountain and on the roads… wear your seatbelt too.

    “Winter rainfall in the San Bernardino area varies by elevation, but generally, the wettest months are December, January, and February, with total precipitation often ranging from
    10 to over 16 inches annually, with significant portions falling in winter, particularly December (around 3.4 inches) and February (around 2.3 inches), though specific forest-level data would need elevation-specific stations like the San Bernardino Ranger Station.”

  • Author
    Posts
  • You must be logged in to reply to this topic.