A blizzard warning is in effect for much of the Sierra Nevada mountain range as a powerful winter storm descends upon California, bringing with it the threat of life-threatening flash floods, mudslides, and record snowfall. The storm, arriving after a remarkably dry January that left the Sierra Nevada with minimal snowpack, began impacting the region Monday night, February 16th, and is expected to continue through Thursday morning, February 19th.
The National Weather Service forecasts up to 8 feet of snow in the highest elevations of the Sierra Nevada, with snowfall totals exceeding 30 inches near Donner Pass. Snow levels, initially around 6,000 feet, are expected to fall to as low as 3,000 feet in the northern Sierra and 4,000 feet in the southern Sierra Nevada. Northwest California is as well bracing for significant snowfall, with 6 to 18 inches expected above 2,000 to 3,000 feet in Del Norte and Humboldt counties.
The storm’s impact extends beyond the mountains. AccuWeather reports localized flooding is possible across the state, and isolated tornadoes cannot be ruled out. Heavy rain and high winds are also impacting areas from Sonoma County southward. The Weather Prediction Center notes that the storm is a result of “a pair of potent Pacific storm systems” converging on the state, delivering a much-needed surge of moisture, with statewide water levels currently at about half of their typical mid-February levels.
Travel is already being severely disrupted. Sierra pass closures are anticipated, and roadways throughout the state are experiencing hazardous conditions. FOX Weather reports ongoing live coverage of the storm’s impact, highlighting the dangerous conditions and providing real-time radar updates. Although some coastal areas, such as Eureka and Arcata, may see brief snowflakes, significant accumulation is not expected there, though small hail could create slick roads.
The arrival of this storm marks a dramatic shift from the dry and warmer-than-average weather that has dominated California in recent weeks. The incoming storms, while hazardous, are offering crucial moisture to a state grappling with ongoing drought concerns.
