What a Snow Forecast for Mamoth Lake, California...

Tonight: Periods of snow, mainly after 10pm. The snow could be heavy at times. Low around 20. Strong and damaging winds, with a southwest wind 55 to 60 mph increasing to between 80 and 85 mph. Winds could gust as high as 145 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 6 to 10 inches possible.

Friday: Periods of snow. The snow could be heavy at times. High near 25. Strong and damaging winds, with a south wind between 80 and 85 mph, with gusts as high as 145 mph. Chance of precipitation is 100%. New snow accumulation of 39 to 45 inches possible.

Friday Night: Periods of snow. The snow could be heavy at times. Low around 13. Strong and damaging winds, with a southwest wind 75 to 80 mph decreasing to between 55 and 60 mph. Winds could gust as high as 145 mph. Chance of precipitation is 100%. New snow accumulation of 38 to 44 inches possible.

OK, that makes nearly 100" of snow in 36 hours with winds 80-145 MPH.