Key impacts:

• The storm is anticipated to deliver up to 4 feet of snow on the tallest peaks.
• Wind gusts may reach 70 MPH along the Sierra crest, with localized gusts potentially reaching 80 MPH.
• Travel conditions are becoming hazardous on major routes such as I-80 over Donner Pass and Highway 50.

The National Weather Service warns that chain requirements will likely begin for most vehicles at elevations above 5,000 feet. Snow levels are forecast to drop from around 7,000 feet to as low as 4,500 feet. Visibility will be drastically reduced during the heaviest snowfall periods, which will occur from Sunday night through Tuesday morning.

A significant concern is the potential for blizzard conditions. Meteorologists expect heavy snowfall—between 1-2 feet—above 6,000 feet. Authorities stress that this winter storm is not typical for May and could pose serious risks for unprepared drivers.

Travel advisories:

• I-80 and Highway 50 face multi-hour closures from Sunday night into Monday.
• If you must travel, keep an extra flashlight, food, and water in your vehicle—this advice comes directly from the National Weather Service.
• The most dangerous period of the storm is expected from Sunday night through Tuesday morning.

This late-season winter storm underscores a rare occurrence—late-season storms can happen but are not common. The combination of high moisture levels and strong Pacific dynamics may be behind this unusual weather pattern. As the situation develops, officials continue to monitor conditions closely.

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