For Colorado winters, La Niña has become the name of the game

Colorado’s most powder-crazed skiers have gotten to know the term “La Nina.”

That’s because the most powder-crazed skiers pay attention to forecasts well in advance of winter, and La Niña has come to the center of those forecasts in recent years. It is again at the center of predictions for this season.

La Niña refers to surface temperatures over large parts of the Pacific Ocean being cooler than average. El Niño refers to temperatures that are warmer than average.

“These sea surface temperature fluctuations can significantly influence global weather patterns, especially during the winter for the U.S.,” OnTheSnow.com explained in a report posted this fall.

It would be the fourth time in five years for a La Niña pattern, disrupted only by last season’s El Niño. And so we return to popular thinking.

“La Niña tends to organize the wintertime jet stream in a way that favors the Pacific Northwest and northern tier of states with the most consistent winter snowfall,” Denver meteorologist Chris Tomer wrote for OnTheSnow. He continued: “La Niña tends to leave California and the southern tier of states drier and warmer than normal.”

That would include most of Colorado. But Joel Gratz, the founding meteorologist of skiers’ go-to weather source OpenSnow, has cautioned against any conclusions based on historic correlations. When it comes to Mother Nature, Gratz explained, there are any number of factors impossible to predict months in advance, let alone days in advance — the way the wind blows, for example.

“Some of this does come down to what meteorologists call internal variability, or we can just say dumb luck,” Gratz said ahead of the last La Niña pattern in 2022-23.

That season ended with snowfall well above average across the West, including much of Colorado. The previous La Niña of 2021-22 is remembered as largely below average. El Niño, said to better favor Colorado, resulted in what Gratz marked as average snowfall last season.

Translation: There is no definitive translation.

But, yes, La Niña’s historical trends favor northern states. So, party on, Oregon and Washington. Party on, northern Wyoming, Montana and Utah.

Panic not, Colorado.

Tomer predicted above-average seasons for northerly Steamboat Springs as well as Vail, with Aspen on the edge of generous storm tracks. Tomer foresaw average seasons for southerly Telluride and Wolf Creek, as well as for resorts around the central mountains, including Breckenridge, Copper Mountain and Winter Park.

Average is far from bad in Colorado ski country, Gratz has pointed out.

“The secret to getting the most powder days is going out as often as you can,” he said. “If you’re out there, you have a chance to catch it.”

An American Robin perches on a snow-covered branch after the season’s second snowfall came to Colorado Springs as predicted Oct. 23 and continued through the next morning. Snow amounts ranged from less than one inch downtown to a foot of snow near the Air Force Academy. (Parker Seibold/The Gazette)
An American Robin perches on a snow-covered branch after the season’s second snowfall came to Colorado Springs as predicted Oct. 23 and continued through the next morning. Snow amounts ranged from less than one inch downtown to a foot of snow near the Air Force Academy. (Parker Seibold/The Gazette)
CHRISTIAN MURDOCK, THE GAZETTELeslie Bergan of Colorado Springs drops into the Prospector at Wolf Creek Monday, Dec. 17, 2012, after 51 inches of snow fell on the southern Colorado ski area over the weekend. (The Gazette, Christian Murdock) (Christian murdock)
CHRISTIAN MURDOCK, THE GAZETTELeslie Bergan of Colorado Springs drops into the Prospector at Wolf Creek Monday, Dec. 17, 2012, after 51 inches of snow fell on the southern Colorado ski area over the weekend. (The Gazette, Christian Murdock) (Christian murdock)

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