The Latest Breaking News from Sierra Nevada

The storms keep coming, one after another after another, like a series of fire-hose blasts so relentless that meteorologists use terms like “atmospheric river,” “bomb cyclone” and “bombogenesis.” What happened to our formerly gentle old winter visitor, the “pineapple express”? Cities and highways have flooded in Northern California, and the…

Sacramento area residents were warned of ‘imminent levee failure’ as snow in the Sierra Nevada made driving hazardous

A winter storm packing powerful winds, heavy rain and potentially several feet of snow in the Sierra Nevada shut down highways, toppled trees and triggered flood watches and avalanche warnings.

LOS ANGELES — It’s ramping up to be a major weekend of precipitation across California as one of the biggest storms of the season makes its way south, with heavy snow blanketing the Sierra Nevada on Saturday and rain expected overnight in Los Angeles.

A winter storm packing high winds and potentially several feet of snow is blowing into the Sierra Nevada

Thousands of years ago during the last Ice Age, rivers flowed from giant glaciers in the Sierra Nevada down to the Central Valley, carving into rock and gouging channels at a time when the sea level was about 400 feet lower. When the glaciers retreated, meltwater coursed down and buried…

OLANCHA, Calif. — Even as worsening drought and aridification force Los Angeles to end its overwhelming dependence on imported water, Angelenos may soon realize that weaning themselves off supplies from the rugged eastern Sierra Nevada doesn’t mean they will stop paying for the city’s long, complicated history there.

SACRAMENTO, Calif. — Admirers of California’s Sierra Nevada mountains are familiar with the swaths of blackened trees flanking its sprawling green forest ranges. A new University of California, Berkeley study quantifies that devastation, finding nearly a third of southern Sierra conifer forests have died in the last decade.

In downtown L.A., in the parking lot of the Automobile Club of Southern California, sits a quaint monument, one century old. It’s a cross section of a giant sequoia, propped on its side, with arrows pointing to tree rings marking era-defining events. Meanwhile, in the Sierra Nevada, thousands of crown-scorched…