Northern California is about to take a giant leap into a winter-like weather pattern. A series of storms will bring rain to the Valley and snow to the Sierra through the middle of this week.
The first frontal system will arrive overnight Sunday into Monday morning, bringing periods of rain to the Sacramento and San Joaquin Valleys.
A Winter Storm Warning is in effect for the western slope of the Sierra above 5,500 feet between 11:00 p.m. Sunday and 5:00 a.m. Tuesday, with the heaviest snow likely during the day on Monday. Snow accumulations of 6 to 12 inches can be expected by Tuesday morning at the 6,000 foot elevation, with 18 to 24 inches possible above 7,500 feet. Winds may gust up to 50 miles per hour over the high Sierra passes during the warning period.
A second storm will impact the region Tuesday into Wednesday. Wamer, dry weather is expected to return by the weekend.