Colorado

Springtime Rain Crucial for Getting Wintertime Snowmelt to the Colorado River, Study Finds – Inside Climate News

Published

1 year ago

August 16, 2024

Springtime Rain Crucial for Getting Wintertime Snowmelt to the Colorado River, Study Finds – Inside Climate News

The Never Summer Mountains tower almost 13,000 feet above sea level on the west side of Rocky Mountain National Park, the regal headwaters of the Colorado River. Snowmelt and rainfall trickle southwest from the peaks through jumbles of scree and colorful deposits of silicic rock, formed some 27 to 29 million years ago, then plunge into Gore Canyon. There, the river gallops downstream, absorbing other tributaries from Arizona, New Mexico, Utah and Wyoming on its way to California. More than 40 million people from seven states and Mexico depend on water from the Colorado River Basin to drink, irrigate crops, generate electricity and recreate, a demand that is greater than the river system can bear.

Historically, variations in snowpack would correlate with the amount of available water in the river come summertime. But since 2000, less and less snowmelt has been making its way into the Colorado River, and water levels in the river have not tracked as closely with variations in precipitation. A new study from the University of Washington, published today in the journal Geophysical Research Letters, offers a clue as to why this may be: increased evaporation and decreased springtime rainfall is leading parched plants and trees to suck up much of the snow melt before it ever reaches the river.

“These headwater areas provide around 70 to 80 percent of the Colorado River’s water,” said Daniel Hogan, a PhD student at the University of Washington who worked on the study. “Snowy peaks and all those high mountain rivers are really the linchpin of the system. So if less water is coming from there, then you can expect less water in the entire river.”

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Hogan and a team of scientists used precipitation and streamflow data from 26 upper Colorado River basins—a large sample of the eventual river’s supply, accounting for about a quarter of the Colorado River’s streamflow—to study why there was a growing disparity between snowpack and water levels.

They found that the upper Colorado River basin had experienced a 9 percent decrease in annual spring rainfall compared with precipitation levels prior to 2000. Over half of the 26 basins they surveyed had “significant annual precipitation decreases,” they wrote. Spring had the most severe dropoff in rain, with a 14 percent decline compared to pre-2000 data. “Lower and middle elevation headwater basins were particularly affected,” with 12 of 17 showing “significant decreases,” they wrote.

This drop-off in spring precipitation appears to be especially detrimental to water levels in the summer. Though the researchers did find evidence of decreased rainfall in other seasons, spring rains accounted for 56 percent of the water-level variance.

“Spring precipitation decreases alone fall short of explaining observed streamflow deficits,” the team concluded, but when combined with other forms of water loss, like evaporation and nearby vegetation soaking up the moisture, that explained 67 percent of the variance.

Among the tens of millions of people the Colorado River is overpromised to are farmers irrigating about 5 million acres of agricultural land. But theirs aren’t the only plants impacting Colorado River levels. In their study, the research team worked under the assumption that trees and vegetation in forests ringing the Rockies need springtime precipitation to grow; in its absence, snowmelt becomes the plants’ primary source of water—and they have first dibs.

“It’s a very sound study,” said Tanya Petach, a climate science fellow with the Aspen Global Institute, which helps connect academics with outside organizations that can make use of their work. Petach, who was not involved in the University of Washington study, is a hydrologist who got her Ph.D. in environmental engineering from the University of Colorado. “It helps fill out part of the missing puzzle piece” as to why high levels of winter snowpack haven’t translated to large stream flow numbers in some recent years, she said.

The group’s findings read “like two knockout punches,” said Hogan. “You have less precipitation, so that leads to less streamflow, just inherently. And then, you also have a consequence of the trees and plants that still need their water,” which leads to “uncertainty in how much water we think we have.” He hopes this study helps water modelers understand the importance of using spring precipitation in addition to winter snowpack to predict how much water will be available in the river.

This study “puts a lot of momentum” behind improving spring forecasts for Colorado River stream flows, Petach said.

Hogan could not say for sure whether climate change has played a role in the decreasing springtime precipitation levels across the upper Colorado River basin as no part of their study was designed to investigate that possible connection. But other studies have already suggested climate change is driving droughts in the Colorado River’s upper basin.

Decreasing water levels across the Colorado River “could very well be linked to climate change directly,” Hogan said. “And if that is the case, then we can expect these declines to continue.”

About This Story

Perhaps you noticed: This story, like all the news we publish, is free to read. That’s because Inside Climate News is a 501c3 nonprofit organization. We do not charge a subscription fee, lock our news behind a paywall, or clutter our website with ads. We make our news on climate and the environment freely available to you and anyone who wants it.

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Jake Bolster

Contributing Writer

Jake Bolster is a freelance multimedia journalist who covers climate and the environment across the United States.

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Colorado

Colorado mom, 6-year-old son found dead in Canyonlands National Park in apparent murder-suicide

Published

5 hours ago

January 10, 2026

Press Room

Colorado mom, 6-year-old son found dead in Canyonlands National Park in apparent murder-suicide

A Colorado woman and her 6-year-old son were found dead in Canyonlands National Park near Moab, Utah, this week in what appears to be a murder-suicide, law enforcement officials said.

Park rangers responded to a suspicious vehicle parked in a no-camping area near Shafer Trail in the Island in the Sky district of Canyonlands at 8:15 a.m. Thursday, the San Juan County, Utah, Sheriff’s Office said in a news release.

Park rangers found an unresponsive 6-year-old boy in the vehicle and started life-saving measures, but the boy was pronounced dead when he arrived at the hospital.

The woman was found dead outside of the vehicle.

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Colorado

Battle with the Blue Jackets | Colorado Avalanche

Published

17 hours ago

January 10, 2026

Press Room

Battle with the Blue Jackets | Colorado Avalanche

Columbus Blue Jackets (18-18-7) @ Colorado Avalanche (32-4-7)

2 p.m. MT | Ball Arena | Watch: Altitude, Altitude+ | Listen: Altitude Sports Radio (92.5 FM)

After a homestand-opening win on Thursday, the Avalanche hosts the Columbus Blue Jackets for Next Gen Night on Saturday. This is the second and final regular-season matchup between the teams in 2025-26, as the Avalanche defeated the Blue Jackets 4-1 in Columbus on October 16th.

A Big Night at Ball

Josh Manson recorded the first two-goal and four-point game of his career, along with a Gordie Howe hat trick, as the Avalanche defeated the Ottawa Senators 8-2 at Ball Arena on Thursday. Manson was one of five Avs to post at least three points on Thursday, alongside Nathan MacKinnon (1g/3a), Ross Colton (3a), Brock Nelson (2g/1a) and Cale Makar (1g/2a). Additionally, Brent Burns added a goal for Colorado while Scott Wedgewood stopped 29 of the 31 shots he faced in net for the Avs. With the victory, the Avalanche extended its home win streak to 16 games.

At 10:11 of the first period, Manson opened the scoring with his third goal of the season via a shot from the point through traffic. MacKinnon doubled Colorado’s lead at 17:14 of the first period with his 36th goal of the season via a shot from the slot set up by Necas. The Avs took a 3-0 lead at 2:35 of the second period when Makar scored his 13th tally of the season via a left-circle shot after receiving a drop pass from MacKinnon. At 5:08 of the middle frame, Shane Pinto put the Senators on the board. The Senators momentarily made it 3-2 with 13:41 remaining in the second period, but the goal was disallowed after the Avs successfully challenged for offside. After the disallowed tally, the clock was reset to 13:48.

Necas gave the Avs a 4-1 lead on the power play at 11:46 of the second period with his 20th goal of the season via a sharp-angle one-timer from the bottom of the left circle set up by MacKinnon. At 12:03 of the middle frame, Burns made it 5-1 with his sixth goal of the season via a right-point shot through traffic. Nelson gave the Avs a 6-1 lead on a five-on-three power play at 14:23 of the second period with his 20th goal of the season via a right-circle one-timer set up by MacKinnon’s cross-ice feed. The Avalanche took a 7-1 lead at 16:48 of the middle frame when Manson scored his second goal of the game and fourth of the season via a one-timer from the point set up by Jack Drury’s feed. At 18:04 of the middle frame, Nelson scored his second tally of the game and 21st of the season via a right-circle one-timer set up by Ilya Solovyov’s feed from the left point. Brady Tkachuk made it 8-2 with a shorthanded goal from the doorstep at 7:03 of the third period.

Leading the Way

Nate the Great

MacKinnon leads the NHL in goals (36) and points (78) while ranking tied for third in assists (42).

All Hail Cale

Makar leads NHL defensemen in points (51) and assists (38) while ranking third in goals by blueliners (13). Among all NHL skaters, he’s seventh in assists.

Marty Party

Necas is seventh in the NHL in points (55) and tied for ninth in assists (35).

Series History

In 70 previous regular-season games against the Blue Jackets, the Avalanche has a record of 45-19-1-5.

Defeat on the Road

The Blue Jackets lost 5-3 to the Vegas Golden Knights at T-Mobile Arena on Thursday. In the first period, Columbus took a 2-0 lead after goals from Boone Jenner at 8:24 and Kent Johnson at 10:41 before Reilly Smith put Vegas on the board at 12:20. The Golden Knights took a 4-2 lead after second-period goals from Smith at 5:19, Jack Eichel at 13:07 and Mark Stone on the power play at 18:44. Kirill Marchenko scored for the Blue Jackets to make it 4-3 at 14:28 of the third period before Brett Howden gave the Golden Knights a 5-3 lead at 16:14 of the final frame.

Contributors Against Columbus

MacKinnon has posted 26 points (7g/19a) in 22 games against the Blue Jackets.

In nine contests against Columbus, Makar has registered 17 points (6g/11a).

Necas has recorded 21 points (4g/17a) in 26 games against the Blue Jackets.

Producing Offense for Ohio’s Team

Zach Werenski leads the Blue Jackets in points (46) and assists (30) while ranking tied for first in goals (16).

Marchenko is tied for the team lead in goals (16) while ranking second in points (35) and tied for second in assists (19).

Dmitri Voronkov is third on the Blue Jackets in points (28) and goals (15).

A Numbers Game

30

Colorado’s 30 five-on-five goals since December 19th (10 games) are the most in the NHL during that span.

63

The Avalanche’s 63 second-period goals lead the NHL.

3.94

Colorado’s 3.94 goals per game since December 1st lead the NHL during that span.

Quote That Left a Mark

“It was fun. I don’t think he’s ever seen that before. He’s seen me fight. He’s maybe seen me score. But I don’t think he’s ever seen—actually, nobody’s ever seen that before out of me in the NHL. So, it was a first for everybody, including myself.”

— Josh Manson on recording a Gordie Howe hat trick with his father, former NHLer Dave Manson, in attendance

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Colorado

Colorado man heads to Washington, D.C., to gain support for Marshall Fire survivors

Published

1 day ago

January 9, 2026

Press Room

Colorado man heads to Washington, D.C., to gain support for Marshall Fire survivors

Four years after the fire, recovery is still incomplete for some Marshall Fire victims. A Colorado man is joining wildfire survivors from across the country to push lawmakers to make changes and provide support for survivors still rebuilding.

Recently, a historic $640 million settlement was reached with Xcel Energy, but the Coloradans who lost everything in the Marshall Fire might not be receiving all the money that they’re owed. Some settlements could be taxed, while others were paid in full.

Benjamin Carter

“I was the fourth responding fire engine to the Marshall Fire. By the end of the night, I was triaging homes in the neighborhood that I grew up in,” said former firefighter Benjamin Carter. “I’ve seen how much the community’s hurting, and I just wanted to do whatever I could to help.”

Carter is now fighting for those who lost their homes, including his mother. He’s working with an organization called After the Fire, joining up with wildfire survivors in Oregon, Hawaii and California. This week, Carter flew to Washington, D.C., to speak with lawmakers about how they can help survivors rebuild.

In 2024, lawmakers passed the Federal Disaster Tax Relief Act, which exempted wildfire survivors from taxes on related settlements, among other tax relief. But the bill expired last week, shortly after Xcel agreed to settle over the Marshall Fire.

“If the people don’t have to pay taxes on the damages, then it helps them rebuild,” Carter explained. “Some of the smaller attorneys still haven’t received payment, so all those people will be subject to those taxes; all the attorney fees, and what the actual settlements end up being. And, of what they’re actually getting at the end of the day, that’s been a huge challenge.”

Congress has already proposed extension options. But Carter hopes that by sharing their stories, legislators will act before survivors lose anything else.

“With a lot going on in Washington and everything, the representatives don’t always know about all the issues. And so, we want to educate them on this issue and hopefully gain their support,” Carter said.

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