Issued Zones: All metro areas south and west of the local mountains of Ventura, Los Angeles, Orange, San Diego County and the Inland Empire … All south and west facing mountain slopes and passes of the same areas …Tijuana, Rosarito, and Ensenada – Baja, Mexico
Site: Southern California Weather Force has issued a Short Term Forecast Weather Advisory for light rain and hazardous fog conditions on the slope/pass locations effective MONDAY and Monday Night …
Date Issued: 2/20/22 at 6:35am local
Forecast: An arctic storm system is set to hit the forecast area on Tuesday evening/night into Wednesday, delivering low snow levels to the passes as well as bringing rainfall to the metros. This weather advisory is for MONDAY, a day before the expected activity for the dynamics beforehand, some affecting the mountain slope/pass areas so read on for details …
As stated in the previous article (Click Here), Monday would have the chance of drizzle and/or light rain accumulations south and west of the local mountain areas of Ventura, Los Angeles, Orange, San Diego County and the Inland Empire with adjacent mountain pass/slopes having the same. This is the final update for that.
The image you see above is the SCWF Precipitation Model. It will tell you where the precipitation is expected. There are things to note in this. You can see a hole in the Inland Empire new the Lake Mathews area. With the southwest flow on Monday, the Santa Ana Mountains to the southwest would block a lot of the moisture and only trickle down into that area, so you will see far less than areas with unobstructed elevation to the south or west.
The areas that will have the most ‘widespread’ accumulation of precipitation will be San Diego County’s Coast/Valley areas, especially around Vista.
FOG HAZARD: Fog will be reserved inside the deep low cloud layer. This will affect the mountain rim locations and all mountain pass areas from the Cajon Pass, Rim of the World, Riverside/San Diego Mountain areas … Dense Fog below 1/4 mile is very likely so take caution on Monday and Monday night into Tuesday morning with this.
Precipitation is NOT expected in the High Desert metros, the exception being maybe up at top of the Cajon Pass near Oak Hills as the model above shows …
A Short Term Forecast Weather Advisory is issued here at Southern California Weather Force when conditions are favorable for drizzle/light rain along with a hazardous situation such as a dense fog zone embedded within it and issued 12-24 hours before the event is expected …
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10 mile rule: These alerts issued on this site means that within your zone and 10 miles from you will see the event forecast for. You may or may not see the event but it means you are in the zone or 10 miles from where someone will.
Southern California Weather Force is a custom weather alert service that began in September 1999 off and is regarded as the most accurate weather service in the region, offering custom alerts, maps, and models to help save life and property. The work done here is never 100% accurate, but it comes pretty close. Southern California Weather Force runs on zones, so if an event happens in a zone that is 10 miles from the border of your zone, the forecast is still valid to activate your zone’s alert system. A company quote to the public is that of “The Joker” and tells other agencies in weather this all the time… “This world deserves a better class of meteorologist… and I’m gonna give it to them”… out-forecasting even the National Weather Service with lead-time and precision, which makes this service a focus of ridicule and envy in the weather community due to having such accuracy. Alerts issued here are issued custom from this office and this office alone. You may not even hear it elsewhere, but if one is issued near or in your area, listen up because “if you do not wish to die in weather, follow, it’ll save your life one day.”
Raiden Storm