Watching a blizzard moving into the Sierra is kinda cool - this is time sensitive, but below are 4 live feeds, first at about 8100', next is at 8900', then 9600', last one is the summit at 11000'. Note how the live conditions deteriorate as you move up in elevation and away from town - about 4 feet is expected in town with over 6 feet up on the hill over the next 60 hours:
https://www.mammothmountain.com/on-the-mountain/mammoth-webcam/the-village
https://www.mammothmountain.com/on-the-mountain/mammoth-webcam/main-lodge
https://www.mammothmountain.com/on-the-mountain/mammoth-webcam/mccoy-station
https://www.mammothmountain.com/on-the-mountain/mammoth-webcam/the-summit