Updated weather forecast from the County meteorologist:
Dense fog in places this morning will give way to mostly cloudy skies as a winter storm system approaches San Diego. Shower activity could begin as early as mid to late afternoon, becoming likely later in the evening. A lot of subtropical moisture is being advected into the area, which will lead to periods of heavier rain late tonite through Friday morning. There is a chance of minor small stream and urban flooding, and some of the more recent burn areas could be at risk to minor debris flows. The cold front passes through Friday afternoon, dropping the snow level from well above 6000’ down to 4500’ by evening, but little snow will accumulate, as the bulk of the rain will have moved out by evening. Expected rain amounts are 0.50”-1.25” on the coastal plain, 2”-3” mountains, and less than 0.33” in the deserts. Winds will be extremely high in the mountains and deserts during the storm with gusts as high as 60-70 mph at times.
Following the passage of the storm Friday night, a rather cold air mass settles in for the weekend and early part of next week with low temperatures below freezing in the mountains, and mid to upper 30s elsewhere. Starting Monday, temperatures gradually warm up a degree or two each day through at least early midweek.
