A rolling conveyor belt of storms this winter has left the Sierra Nevada blanketed in a thick layer of snow. The year started modestly, with the snowpack measuring around 70 percent of average on the first of the year. A robust January and February has brought the snowpack up to around 145 percent of normal for this time of year. April 1 typically marks the peak of Sierra snowpack accumulation and the start of the spring runoff. Move the sliders below to view the terrain before and after snowstorms.

Sierra Nevada Mountains

Before: Feb. 8, 2018

After: Feb. 11, 2019

South Lake Tahoe Flyover Simulation

Before: Feb. 16, 2018

After: Feb. 11, 2019

Lake Tahoe

Before: Feb. 16, 2018

After: Feb. 11, 2019

Mammoth Lakes

Before: Feb. 16, 2018

After: Feb. 11, 2019

Kings Canyon National Park

Before: Feb. 16, 2018

After: Feb. 11, 2019

