Southern California Weather Force has issued a PDS Santa Ana Wind Watch effective for some areas of the metro and mountain areas, effective Monday evening through Tuesday. This is a high risk Particularly Dangerous Situation (PDS) alert. Read on for details and look at the zoom-in models.
First of all, premium members, go to the SCWF member section under the wind tab for this event’s risk model into your area. Click here.
Now for the rest. The strongest upper-level jet and orientation will move into the region later on Monday and last through Tuesday. This will be the strongest wind event since December 2011 when hurricane-force winds struck the metro Los Angeles area. The north to south orientation of this event along with a 150 mph upper-level jet stream will work with cold mid-level air. Cold air sinks, so this will all rush downward. Mountain wave activity will target the San Gabriel Valley area as well. A rare pattern where gusty winds hit all the way to Palos Verde, which normally escapes north wind events. Not too much to talk about so use the 6 model images below for my medium range wind risk model. Remember, after this, we will begin to open the storm window for precipitation to return. Click here to read that article.
Those of you planning on traveling the Cajon Pass in high profile vehicles between Monday evening and Tuesday better make other plans. This is enough to tip over any high profile vehicles attempting it. There are six images below, zone 1,2,3,4 covers all of the forecast area, the 5th image is the Cajon Pass, and the 6th is the Ventura, SFV/SCV areas.
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