This week’s snowfall likely won’t be enough to pull the Pacific Northwest out of its snow drought.

Snowpacks were at a record low across the Western U.S. in early January, the National Integrated Drought Information System reported last week. The Cascade Mountains’ snowpack is 40 percent to 60 percent of normal. Record lows also extend to California, Colorado, Idaho, Montana, Nevada, Oregon and Wyoming, with the northern Rocky Mountains facing the brunt of the snow drought.

“It is kind of striking that the pattern here is so widespread,” said Luke Gilbert Reyes, a doctoral student at Washington State University Vancouver who studies snowpack.

Multiple atmospheric rivers dumped snow atop mountains in early December. However, temperatures increased and light flakes turned to heavy rain, resulting in little mountaintop snow accumulation across the West. A dry wave lingered for the rest of the month, worsening the snow drought.

If winter precipitation is constant and temperatures remain cool through March, the snowpack might rebound, Reyes said. However, the current El Niño winter — abnormally warm and dry — will ultimately lead to below-average snow accumulation, he said.

Yet this seasonal weather pattern isn’t the only contributing factor hindering snow levels.

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