Back-to-back blizzards have hammered the Sierra Nevada, burying the mountain range straddling Nevada and California in massive amounts of snow.

If you haven't made it to the mountains this year to see the insane snow pileup, take a look at the photos above. And if you've stomped your boots in the snow, please send us your best images at agraff@sfgate.com and we'll add them to our gallery.

While the images of snow piled up to rooftops and along highways are impressive, the latest numbers measuring the snowpack are even more significant and remarkable.

The California Department of Water Resources reported Thursday that the Sierra snowpack is now 153 percent of average to date. For comparison, the snowpack was 67 percent of average on Jan. 1.

A manual measurement at Phillips Station off U.S. 50 near Sierra-at-Tahoe found a snow depth of 113 inches (287 centimeters) and a snow water equivalent of 43.5 inches (110.5 centimeters), more than double what was recorded there in January.

Snow water equivalent is the depth of water that theoretically would result if the entire snowpack melted instantaneously, according to DWR. It's a key number used by water managers across the state to estimate anticipated spring runoff.

MORE: 5 hacks to pay a lot less for skiing in the Sierra

Phillips Station is where then-Gov. Jerry Brown attended a snowpack survey in April 2015 that found a field barren of any measurable snow. Brown later ordered Californians to use less water. On Thursday, the department was unable to livestream the measurement because stormy weather cut the cell connection.

"This winter's snowpack gets better each month, and it looks like California storms aren't done giving yet," Karla Nemeth, the department director, said in a statement. "This is shaping up to be an excellent water year."

While the storms have frequently disrupted travel in the Sierra, they have stoked a big part of the state's water supply; the Sierra snowpack that melts and runs off into reservoirs during spring and summer provides about 30 percent of California's water needs.

The Associated Press contributed to this report.

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