CAJON PASS, CA. (Pain In The Pass) >> An Cutoff Low will move across Southern California on Saturday afternoon/evening into Monday with leftovers on Monday night or early Tuesday morning*.
As the system continues to spiral in various cities of the forecast area will see different weather that will impact. You may see scattered rain showers, snow showers that can be heavy at times with a thunderstorm, and strong gusty winds.
Southern California Weather Force has issued two alerts from Flood Watch to Winter Storm Warning across the forecast zones acquired from Saturday evening into Monday night, January 25th to January 27th, 2025.
The heaviest downpours can have the potential to bring a quick 1+ inch of rain from a thunderstorm. The risk for localized flash flooding is low to moderate, but cannot be ruled out because the ground is dry and in the burn scars areas from brush fires earlier in the year or from last year.
The Southern California Weather Force has posted the timing of the storm for the Inland Empire and the Cajon Pass, mountains area, and the high desert.
Timing for Inland Empire/Cajon Pass. Rain showers could start around 5pm-9pm Saturday night off and on until Monday with heavy fog in the Cajon Pass with rain showers. The Cajon Pass/foothills could get about two inches to 3 inches of rain total. The Inland Empire cities could get about an inch to 2 inches of rain total, each city could vary. There no chance of heavy snow at the top of the Cajon Pass with this storm.
Timing of the storm for the High Desert. The rain showers could start around 9pm-1am Saturday into Sunday morning for the high desert cities. Scattered rain showers all day Sunday into Monday. Dusty of snow is not out of the question for the desert. Strong gusty winds are in the forecast.
Timing of the storm for the Wrightwood Mountains. Rain/snow showers could start around 6pm-9pm Saturday into Monday night. Snow level will be high at 5,000 ft. Wrightwood could get about an inch to 2+ inches of snow total. Rain could be a one inch to 2+ inches if a thunderstorm passes by.
Timing of the storm for the Mountain Pass/Stateline. Rain/snow showers could start around 12am-3am Monday morning into Monday night. Snow level will be high around 5,000 feet to 4,000 ft. Mountain Pass area of Interstate 15 could get about an inch to 2+ inches of snow total. Rain/ice could be about one inch of rain. See map below.
If you travel through the Cajon Pass or on Interstate 15 near Mountain Pass/Stateline expect traffic due to the weather condition that can change quickly. Remember to SLOW DOWN in the rain, snow or in foggy conditions.
* Cutoff lows may remain nearly stationary for days, or spin around counter clockwise and hit again.
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