On Wednesday, September 18, 2013, snow levels lowered to around 6000 feet with light accumulating snow reported at elevations around 7000 feet. Local ski areas including Big Sky, Moonlight Basin and Bridger Bowl were reporting up to a few inches of snow accumulation.
Both the SPoRT VIIRS Day-Night Band Radiance RGB 1km and Day Snow-Cloud RGB 1km showed increased radiance values in the Madison Range (Big Sky/Moonlight Basin ski areas) and Bridger Mountains (Bridger Bowl ski area) where snow was reported. However, higher radiance values were also noted in the Crazy Mountains, Beartooth Mountains and Mission Mountains. The snow become visible in these images when the skies cleared Thursday night. The two images are shown below with the areas discussed highlighted in yellow circles.