The National Weather Service in Sacramento has issued a forecast warning residents of active weather patterns, which will bring rain, mountain snow, and gusty winds through the weekend. While drier conditions are anticipated into the following week, with colder mornings expected, the focus remains on the immediate weather threats.
Showers have started up in Shasta County and the northern Coastal Range, whereas areas like Modesto and Stockton are experiencing patches of reduced visibility due to fog and mist. The forecast highlights gusty conditions around the central Sacramento Valley with winds reaching speeds of 25 to 30 mph between Chico and Redding. Precipitation is predicted to be concentrated over Shasta County, with minimal impact to mountain roads, and a more significant rainfall, between 0.5 and 0.75 inches, expected around Redding.
Looking towards tomorrow, the region should brace for another round of moisture that brings additional rain and wind. Snow levels are predicted to drop from 7000 feet Saturday night to 5000 to 6000 feet tomorrow afternoon, with a 60 to 80% chance of significant snow accumulations above 6000 feet. As a result, a Winter Weather Advisory has been enacted for areas above 6000 feet in the Sierra from early morning to evening tomorrow. Potent winds are also anticipated along the crest, with gusts potentially reaching 55 mph.
The latter half of the weekend also includes a Wind Advisory for the northern and central Sacramento Valley, due to a synoptic setup similar to the one experienced yesterday night, with some enhancements in the surface pressure gradient and winds aloft. According to the advisory, gusts ranging from 35 to 50 mph could blow through the northeastern Sierra foothills and the northern Sacramento Valley starting this night, spreading across the Delta and areas just north of Sacramento by tomorrow morning. Additionally, there's a marginal chance for isolated thunderstorms Sunday afternoon following frontal passage.
Beginning Monday, as the system exits, the region is expected to see an end to the wet conditions and establish a pattern of upper-level ridging, leading to breezy northerly winds through the Valley and colder morning temperatures, particularly from Tuesday to Thursday. The National Weather Service notes that there's "a 30 to 60% chance of lows less than 35 degrees" on these mornings in the Sacramento Valley, advising residents to be vigilant about cold weather safety.
Extended forecasts predict that patchy fog may occur each morning in the Central Valley, with daytime high temperatures ranging in the 50s to 60 for Valley and foothills, and slightly cooler in the mountains. The end of the week may see some uncertainty with possible precipitation chances starting yesterday into today, but for now, the area inches back towards normalcy after a barrage of active weather.
