Reno, Nevada – The first round of winter weather is arriving across the Sierra and western Nevada this afternoon, with a Winter Weather Advisory in effect through 4 p.m. Wednesday and additional travel impacts expected early next week.
According to the National Weather Service in Reno, snow is developing across the Sierra today, with valley rain transitioning to snow in higher elevations. Snow levels will start above 6,500 feet this afternoon before dropping below 6,000 feet after midnight, allowing snow to impact additional foothill communities by Wednesday morning.
Forecasters note that convective snow bands, including the possibility of thundersnow, may develop today. While confidence is low, these bands could briefly increase snowfall rates and reduce visibility with little warning. Heaviest snowfall rates could reach up to 2 inches per hour in parts of Mono County and higher Sierra elevations.
Light accumulations — generally up to 1 inch — are possible in foothill communities above 6,000 feet, while higher elevations of the Sierra will see greater totals. Travel impacts are expected along major mountain corridors including Interstate 80, US Highway 395, Highway 50, and Sierra backcountry routes.
The National Weather Service advises that this weekend may begin relatively calm for recreation and travel, but conditions are expected to deteriorate rapidly Monday as a stronger and colder winter storm moves into the region. That system could bring lower snow levels below 5,000 feet and more widespread travel disruptions.
Drivers traveling through the Sierra are urged to check road conditions, carry winter supplies, and be prepared for rapidly changing weather, especially during evening and overnight hours.
This alert is especially relevant for commuters, outdoor workers, and travelers planning Sierra or backcountry trips over the next several days.
Residents are encouraged to monitor official National Weather Service updates as forecast confidence increases for the early-week storm.
