The Sierra Mountains haven't seen too much snow this season, but people should still be cautious of avalanche danger, which one organization forecasts every day.
Observers couldn't get an accurate size of the snow slide from their vantage point, but they say it appears to be two-feet deep.
A winter weather advisory continues for the mountains until 4am on Tuesday.
I-80 EB held at Donner Summit. I-80 WB turned at the Nevada state line due to spinouts. SR 431 is closed between Fairview & Douglas Fir.
The Sierra Avalanche Center says even though snowpack stability is improving, human triggered avalanches remain possible.
There could be enough loading in the start zones by tomorrow for large natural or human triggered avalanches to be possible.
The Sierra Avalanche Center set the avalanche danger level to extreme in the Sierra Nevada following a series of storms in the early part of January.
A Mt. Rose Ski Tahoe spokesman says two skiers were rescued after an avalanche near the summit early Thursday afternoon.
Washoe County says it is working with regional partners to warn residents of avalanches in the high-elevation areas due to the inclement weather.
Snow experts taught the first of three seminars on avalanche education Wednesday.