Mammoth, CA Conditions Report: 5-7″ Powder Day SnowBrains | February 13, 2018 | Conditions Report Share this article Mammoth Mountain, CA yesterday. image: peter morning/mammoth Mammoth Mountain in California reported 5-7″ of new snow yesterday. First powder day in a while and it was damn fun! Mammoth Mountain, CA yesterday. image: peter morning/mammoth SNOW NUMBERS: image: mammoth, today FORECAST: Forecast for Mammoth mountain. Image: noaa, today PHOTOS: Mammoth Mountain, CA yesterday. image: peter morning/mammoth Mammoth Mountain, CA yesterday. image: peter morning/mammoth Mammoth Mountain, CA yesterday. image: peter morning/mammoth You might also like: Posted by SnowBrains | February 13, 2018