Our first major storm of the season has arrived with a potent cold front continuing to progress through Southern California. The main cold front has finally made it into the San Bernardino Mountains with colder air filtering into the region. We are beginning to see the snow level drop with rain slowly changing over to snow; the snow level is currently sitting at about 7,500 feet. As this front passes east of the area, steadier precipitation will turn more showery with the snow level falling to around 5,500 feet tonight. Travel safely and carry chains! Rainfall amounts of 1-2 inches are likely in most areas, with locally 3 inches on the lower coastal slopes, where a flash flood watch remains in effect, especially below recently burned areas. A couple inches of snow are still possible above about 6,000 feet before showers end later tonight. Skies will clear overnight, allowing temperatures to drop into the mid and lower 20s, our first hard freeze of the season! High pressure will slowly build back over the region during the second half of the week with light offshore winds, bringing a return to more seasonal fall weather by the weekend. Another trough is forecast to push through the region early next but, but no precipitation is expected at this time.