From The Mercury News – This year, something unusual happened. After years of extreme drought and several very wet flood years, the Sierra snowpack, the source of one-third of the state’s water supply, is shockingly average this year: 104% of normal on Friday. And more is on the way. The National Weather Service on Friday declared a winter storm warning for the Sierra, predicting 1 to 2 feet of new snow through Sunday. Chain controls went into effect on Interstate 80 Friday afternoon. For a state where 11 of the past 17 years have been in severe drought, where massive, punishing storms last year brought the biggest snowpack since 1983 and waves of destruction along the coast, and storms in 2017 caused $100 million in flood damage to downtown San Jose and nearly collapsed Oroville Dam, an ordinary winter is a godsend, experts said Friday. “It’s about as normal as you can get,” said Jeffrey Wood, a meteorologist with the National Weather Service in Sacramento. “It’s what we hoped for. In recent years we’ve had extremes. This year is definitely an outlier, but in a good way. Enjoy the normal.” (more)