Issued Zones:  Wrightwood areas … San Bernardino County Mountains …

Site:  Southern California Weather Force has issued an Avalanche Watch effective Thursday through Friday …

Date:  12/24/19 at 111:50am PT

Forecast: A strong and cold storm system will hit the area with the most snowfall on Christmas Night and lasting through Thursday night.  A thick icy snow-pack up on the higher mountain peaks will work with extremely high snow totals with this event. 

This will make for powdery conditions on top of the icy snow-pack, especially in the back-country.  You can also expect rock-slides with this storm system, which can further help destabilize the snow-pack further.  After the storm system passes, I will target Friday as well with some areas seeing wind gusts out of the northeast over 40+ mph and this could also further destabilize the upper snow-pack from the storm. 

This could easily send avalanches down below the steeper peaks and if you are planning a back-country hike, do not go during this period.  Because of travels, the entire mountain ranges have been issued this.  You will receive another update before this storm hits with snow-amounts, but this is the most important to go out.  Heavy snowfall and gusty winds on Thursday followed by gusty winds on Friday with the highest danger.

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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.

Forecaster: KM