Issued Zones: San Bernardino Mountains, Big Bear … Lucerne Valley to Barstow …
Site: Southern California Weather Force has issued a Weather Advisory effective this afternoon/evening …
Date: 7/11/21 at 8:50am PT
Forecast: A bit of monsoonal moisture has entered the forecast area from severe storms that rocked Arizona yesterday. This will work with heating of the day and convergence over the Eastern San Bernardino County Mountains around Big Bear this afternoon.
A pop-up isolated thunderstorm is possible there, with outflow going north through Lucerne and meeting up near Barstow this evening for another chance of a pop-up storm.
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.