Issued Zones: West and Southwest San Diego County Valley/Coasts, including directly Downtown San Diego … Western Baja from TJ to Ensenada …
Site: Southern California Weather Force has upgraded the Thunderstorm Watch to a Tornado Watch for the zones listed above.
Date Issued: 12/21/23 at 3:00pm local
Forecast: A rare cutoff low is moving into the region this evening, and it will bring extremely strong upper lift dynamics. This will start a bit after 9pm and go into the night for the forecast region. Instability parameters are enough to warrant surface warm air rising.
With the combination of this instability at the surface and aloft, along with surface convergence, the storms that move through this area will produce severe thunderstorms capable of high winds, lightning, flooding, hail, and the works.
In addition to this, the backing southeast flow east of the surface low between the hours of 9pm and 5am will give low-level shear, which is what is needed for a tornado.
This is an upgrade from the Thunderstorm Watch issued earlier.
As for areas like Los Angeles, Orange, Riverside, and Imperial County, your alert remains intact at this link – https://www.facebook.com/scweatherforce/posts/pfbid0vXMXDiWL99v9suDhzpWcejdG8Qf8Q8VJKw2D8gjd1Fy3TeH8akD2cePZFs3r1XNil
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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.”