In this handout image provided by NASA’s Jet Propulsion Laboratory, a scanning lidar, which measure’s snow’s depth with lasers, left, and an imaging spectrometer that measures how fast the snow ... more 
In this handout image provided by NASA’s Jet Propulsion Laboratory, a scanning lidar, which measure’s snow’s depth with lasers, left, and an imaging spectrometer that measures how fast the snow is melting into runoff are seen before a flight to measure the snowpack in California’s Sierra Nevada mountains on Sunday, March 23, 2014. (AP Photo/NASA Jet Propulsion Laboratory) less 
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Associated Press | Photo By NASA Jet Propulsion Laboratory
Wed, Mar 26, 2014 2:03 AM EDT