A spurt of rain hit San Diego County overnight into Friday morning in areas mostly away from the immediate coast, but more periods of rain and mountain snow are possible heading into the weekend.
As of Friday morning, a few areas got pockets of light to moderate rainfall in the previous 12 hours, with rain accumulation measuring less than a tenth of an inch. Some of the totals reported by the National Weather Service include Barona with 0.08 inches, Poway with 0.05 inches, Alpine with 0.05 inches, Julian with 0.02 inches, Mt. Woodson with 0.02 inches, and Santee with 0.01 inches.
There is expected to be a lull in rainfall activity Friday afternoon before it increases again in the valleys and mountain areas later in the evening. Additional amounts could range from a tenth to possibly a quarter of an inch.
Westerly winds will pick up across the region Friday afternoon with gusts up to 25 miles per hour possible along the coast. Gusts in the mountains and deserts are expected to hit up to 50 miles per hour.
As the system continues to move through the region heading into the weekend, there is some instability which could produce an isolated heavy downpour in the valleys or mountains on Saturday. Snow levels are anticipated to drop to 5,500 feet, so some flurries are possible at the tops of San Diego’s mountains. Mt. Laguna could get one to two inches of snow.
On Sunday, conditions appear to be dry for much of the county, but winds are anticipated to remain. A Beach Hazard Statement is currently in effect for the coastline due to King Tides. High astronomical tides around seven feet are anticipated as a result of the Beaver Moon, the fourth and final supermoon of the year. Elevated wave heights from four to six feet with local sets up to eight feet possible could lead to coastal flooding this weekend.
The tide schedule for this Saturday in La Jolla includes a low of 1.6 feet at 2:02 a.m., a high of 6.9 feet at 8:21 a.m., a low of -1.3 feet at 3:37 p.m., and a high of 3.8 feet at 10:08 p.m.
Saturday daytime highs for the coast and valleys will top out in the low to mid-60s, mid-50s for the mountains, and upper 60s for the deserts. Looking ahead, another Santa Ana wind event is anticipated for next week.