Sierra Nevada snowpack is much worse than thought: a 500-year low

When California Gov. Jerry Brown stood in a snowless Sierra Nevada meadow on April 1 and ordered unprecedented drought restrictions, it was the first time in 75 years that the area had lacked any sign of spring snow.

Now researchers say this year’s record-low snowpack may be far more historic — and ominous — than previously realized.

In a paper published Monday in the journal Nature Climate Change, scientists estimate that the amount of snow in the Sierra Nevada was the lowest in more than 500 years.

“We were expecting that 2015 would be extreme, but not like this,” said senior study author Valerie Trouet, a paleoclimatologist at the University of Arizona.

Read the entire article at LAtimes.com