Pacific Storm Hercules is next on the Southern California Weather Force storm list and it will start as a Category Three regionally capable of rain, low elevation snow, and yes even thunderstorms for some metro areas starting Sunday night for some but mainly hitting on Monday.  Find out where by reading on.

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I’ve been busy this morning closing out the last storm and issuing the alerts for this next system.  As of now the confidence is growing that system is going to be another arctic system dropping out of the north-northwest.  The last system had a lot of moisture with it as it came from mainly west-northwest.  However, this system has less moisture with it … but it is more dynamic.  What I mean is there will be the better risk of thunderstorms with it because this system will place itself in what is widely known to SCWF viewers as The Martin Storm Diamond.  The Martin Storm Diamond is a diamond-shaped zone southwest of Los Angeles that when an upper level low enters this area it will have the upper divergence to produce thunderstorms in the metros.  Pacific Storm Hercules does have this potential.

This morning I issued two alerts over the micro-climate alert system.  The alerts were for the mountains with the Winter Storm Watch (Click Here) and the High Desert with the Winter Weather Watch (Click Here).  Hitting both click here’s will bring those alerts up to you.  Those of you on the app/email SERVICE (Click Here) would have received those.

The system is expected to enter the forecast area’s northwest corner (SLO/KERN) by Sunday afternoon/evening and spread through Ventura/LA overnight with most of the activity hitting the forecast area on Monday, including that possibility of High Desert snow.  The system is colder than the last one with a bit less moisture.  Snow levels will be lower and this could also affect travels through the Cajon/Gorman Passes and Baker to Las Vegas travel zones.

The most rainfall will be in the red-section of the article image, which is Ventura, Los Angeles, Orange, San Diego, and some of the Inland Empire zones.  The gold/yellow value is for notable rain and the green is for less rainfall.  Unlike the last storm, this system will not flood the Imperial Valley.   The system will exit by Tuesday, but it will leave a northeast wind in the wake Monday evening through then for Santa Ana Wind Conditions.

And just like December, we will dry off for the First part of January with storms passing to the northeast.  We could be seeing more cold Santa Ana Winds in this period.

We are exactly FIVE inches of rain in the Downtown Los Angeles measured area. My forecast was for 9-13″. Being it is nearing the end of December and we only have a few months left, this looks right.. unless we get a slew of storms for an entire week or two from tropical connections. The video posted here – https://www.facebook.com/scweatherforce/videos/535421457025391/ Clearly has the season so far. It stated these arctic storms would happen back in October.

This article was a declaration first-look article and will not contain too many details.  As the system nears I will release flood risks and a look at snow amounts.  There will be a lot of work to do, especially with it having the chance of thunderstorms and low elevation snowfall.  Stay tuned to Southern California Weather Force for additional alerts and information.

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