Showing posts with label Snowpack. Show all posts
Showing posts with label Snowpack. Show all posts

Sunday, September 6, 2026

Australian ski resorts to close up to a month early due to global heating and El Niño

Snow at Mount Buffalo, Victoria in July. Photograph: Marni Cordell/The Guardian

by   Environment and climate correspondent



‘Challenging’ weather conditions and lack of snowfall are being blamed after a winter that broke multiple heat records

Major Australian alpine resorts are closing their ski operations up to a month early after a winter that broke multiple records for heat with limited snow falls being washed away by rain.

Predictions in June that a building El Niño could combine with global heating for a challenging ski season came to pass, with seven resorts either already closed or announcing ski lifts will stop operating this weekend.

This week the Victorian resorts of Mount Buller, Mount Hotham and Falls Creek, together with Charlotte Pass in New South Wales, all announced ski operations would end this weekend.

The Victorian resort of Mount Baw Baw, the NSW resort at Selwyn and Tasmania’s Ben Lomond have already closed. Resorts typically aim to stay open until the first weekend of October.

Video - Footage shows first snow of the year falling at Perisher ski resort in New South Wales

 

Data from the Bureau of Meteorology show Falls Creek and Mount Hotham had their wettest winters in more than 30 years but, together with Mount Buller, they also had their warmest winters on record for average maximum and minimum temperatures.

Watkins said data from weather observations at Cabramurra in Kosciuszko national park suggested alpine winters had warmed by about 2C since the 1960s.

He said that temperature rise would have been the difference between precipitation falling as rain instead of snow. “It would have been a bumper season if it had been 50 years ago,” he said.

The El Niño currently in place in the Pacific Ocean can promote hotter and drier temperatures in Australia’s south-east in winter and spring.

This week the bureau forecast the current El Niño would be the strongest on record and Australian scientists said climate change had made the strength of the event six times more likely.



 

A bureau spokesperson said this winter’s heat was consistent “with a developing strong El Niño” and the season had seen long periods of high pressure in the Tasman Sea that directed warmer air from the north over alpine regions.

“But winter 2026 also experienced relatively warm nights, with cloud cover and moist soils resulting in less overnight cooling,” the spokesperson said.

“This is in contrast with historical El Niño events. This is all occurring against the background of a globally warmer climate, with daily global surface air temperatures since June close to or above the record levels in 2024.”

New South Wales, Tasmania and Victoria all recorded their hottest winters on record this year.

In July, many ski resorts broke all-time heat records for the month with temperatures during one hot spell up to 12C above average.

Climate scientists have been warning for decades that global heating will create a challenging future for Australia’s ski resorts and alpine habitats.

Josh Elliott, chief executive at the representative body Snow Resorts Australia, said there was “no question it has been a challenging season for natural snowfall”.

“This winter was shaped by a combination of abnormally warm weather and climatic variability, but it’s important to remember that in any outdoor environment, that variability can result in some seasons being better than others.

“This is an abnormal season and shouldn’t be considered in isolation as a reflection of what future seasons will look like.”

He said skiing, snowboarding and snow play had still been available in NSW, Victoria and the ACT “since the June long weekend, with all resorts across Australia operating through the July school holidays and beyond”.

“What this season has shown is the importance and value of the investment resorts have made in snow making, with underlying demand for snow holidays remaining strong through July and August.”

Wednesday, April 1, 2026

‘On a whole other level’: rapid snow melt-off in American west stuns scientists Experts say brutal March heat has left critical snowpack at record-low levels – and key basins in uncharted territory

 

Nasa satellite images show how the snowpack in Utah has diminished between late February and late March. Illustration: Guardian Design/NASA Worldview

by  

Snow surveys taking place across the American west this week are offering a grim prognosis, after a historically warm winter and searing March temperatures left the critical snowpack at record-low levels across the region.

Experts warned that even as the heat begins to subside, the stunning pace of melt-off over the past month has left key basins in uncharted territory for the dry seasons ahead. Though there’s still potential for more snow in the forecast, experts said it will likely be too little too late.

“This year is on a whole other level,” said Colorado State University climatologist Dr Russ Schumacher, speaking about the intense heat that began rapidly melting the already sparse snowpack in March. “Seeing this year so far below any of the other years we have data for is very concerning.”

 

Acting as a water savings account of sorts, snowpacks are essential to water supply. Measurements taken across the west during the week of 1 April are viewed as important indicators of the peak amounts of water that might melt into reservoirs, rivers and streams, and across thirsty landscapes through the summer.

It’s not just the amount of snow left on mountaintops that’s concerning experts, but the amount of moisture still frozen within them. “Snow water equivalent” (SWE), a measurement of what could melt off to supply natural and manmade systems, is exceptionally low.


Snowpack in California’s Sierra Nevada. Source: Nasa.

 

California’s Sierra Nevada had just 4.9in of SWE, or 18% of average, as of Monday, ahead of the state’s official 1 April survey, according to the state’s department of water resources. In the Colorado River headwaters, an important basin that supplies more than 40 million people across several states, along with 5.5 million acres of agriculture, 30 tribal nations, and parts of Mexico, had just over 4in of SWE on Monday, or 24% of average. That’s less than half what was previously considered the record low.

Schumacher said the incoming storm could slow the early melting but won’t be enough to pull the basins back from the brink. Snow water equivalent measurements going into April were at levels typically seen in May or June, after months of melt-off, according to Schumacher.

The issue is extremely widespread. Data from a branch of the US Department of Agriculture (USDA), which logs averages based on levels between 1991 and 2020, shows states across the southwest and intermountain west with eye-popping lows. The Great Basin had only 16% of average on Monday and the lower Colorado region, which includes most of Arizona and parts of Nevada, was at 10%. The Rio Grande, which covers parts of New Mexico, Texas, and Colorado, was at 8%.

“This year has the potential of being way worse than any of the years we have analogues for in the past,” Schumacher said.


The snowpack in the Colorado Rocky Mountains. Source: Nasa.

 

‘Nothing short of shocking’

Even with near-normal precipitation across most of the west, every major river basin across the region was grappling with snow drought when March began, according to federal analysts. Roughly 91% of stations reported below-median snow water equivalent, according to the last federal snow drought update compiled on 8 March. Water managers and climate experts had been hopeful for a March miracle – a strong cold storm that could set the region on the right track. Instead, a blistering heatwave unlike any recorded for this time of year baked the region and spurred a rapid melt-off.

“March is often a big month for snowstorms,” Schumacher said. “Instead of getting snow we would normally expect we got this unprecedented, way-off-the-scale warmth.”

More than 1,500 monthly high temperature records were broken in March and hundreds more tied. The event was “likely among the most statistically anomalous extreme heat events ever observed in the American south-west”, climate scientist Daniel Swain said in an analysis posted this week.

“Beyond the conspicuous ‘weirdness’ of it all,” Swain added, “the most consequential impact of our record-shattering March heat will likely be the decimation of the water year 2025-26 snowpack across nearly all of the American west.”

Calling the toll left by the heat “nothing short of shocking”, Swain noted that California is tied for its worst mountain snowpack value on record. While the highest elevations are still coated in white, “lower slopes are now completely bare nearly statewide”.

The snow is melting so fast in the Sierra that, if it continues at its current rate, little would be left by early April. It’s unlikely to keep up this astounding pace, but there’s still high potential for the earliest melt-off on record in the state, according to Swain.

“It is increasingly likely this season will be the one of the lowest 1 April snowpacks on record and one of the earliest peak snowpacks in the 21st century,” said Andy Reising, manager of California DWR’s Snow Surveys and Water Supply Forecasting Unit. “This year has featured many of the factors California is expected to see more of in the future: winters with more rain and less snow and stretches of hot and dry conditions.”


Snow around the Great Salt Lake seen between February versus March. Source: Nasa.

 

California’s reservoirs are nearly all filled beyond their historic averages, however, thanks to a series of robust rains. While this will help support water supplies, it will also mean fast-melting snow may be harder to capture.

In the Colorado River Basin, the situation could be even more dire. The two largest reservoirs on the Colorado River are Lake Mead and Lake Powell, which together account for about 90% of storage, are 25% and 33% full accordingly, as of 29 March, and there is little to fill them.

Already officials are in the process of relocating a floating marina on Lake Powell in anticipation of the quickly receding water levels, as experts warn the vital reservoir could drop to the lowest levels recorded since it was filled in the 1960s. If they fall far enough, the system would cease to function altogether. So-called “deadpool” – when water isn’t high enough to pass through the dams, generate hydroelectric power, and be distributed downriver – would be catastrophic.

 

The Colorado River has been overdrawn for more than a century but rising temperatures and lower precipitation are putting more pressure on the system that depended on by cities, farms, industries, and wildlife across the west. The extreme conditions have added more urgency and greater tensions to fraught negotiations over who will bear the brunt of badly needed cuts. Seven states that have blown past two key deadlines are still locked in a stalemate over how the river’s essential resources will be managed through a hotter and drier future.

But the dire snowpack numbers have pushed some municipalities to initiate early water restrictions. Local officials in Salt Lake City, Utah, have called on residents and businesses to begin conserving, with a goal to cut up to 10 million gallons, while city facilities will curb 10% of their use. Across Colorado, there are local orders that limit lawn watering, and in Wyoming residents were warned that full restrictions on outdoor irrigation could come as early as May. Farmers and ranchers across the west are also having to make hard decisions and big adjustments with smaller allocations of water and a recognition that supplies will be strained.

A troubling outlook for fire season

The fast-melting snow is expected to have profound impacts on drinking water supply, agriculture production, and outdoor recreation. It could also set the stage for bigger blazes.

“Unless there’s a major change in the weather patterns and we somehow pull out some sort of miracle springtime precipitation, we’re looking at an extended fire season,” said Dr Joel Lisonbee, senior associate scientist at the Cooperative Institute for Research at the University of Colorado Boulder, noting that there’s not a one-to-one relationship between snowpack and fire, but they are connected.

“In any sort of fire situation, you need some spark or ignition,” he said. Landscapes that would typically spend longer underneath a protective blanket of snow will become more primed to burn. Fire season may “begin weeks to months earlier than what we would usually expect,” he said. “These high temperatures and low snowpack will lead to a rapid drying of the vegetation that’s around, and that will lead to this early start.”

Dozens of large destructive fires have already erupted in recent weeks across the Intermountain West and the High Plains, spurred by extreme heat and low moisture. More than 1.5m acres have already burned this year across the US, more than double the 10-year average.

While Schumacher said he expects this year to be a standout one, the climate crisis is fueling warming trends that climate scientists have long warned will leave the west hotter and drier. Seasons with snow in the US west are shrinking while high fire risks stretch across more months.

“Climate change is going to result in a lot of these extreme events worsening,” said Dr Abby Frazier, a climatologist and assistant professor at Clark University, who added that compound events, where hazards overlap or occur in quick succession, are on the rise. The heat and the drought this year, served as a one-two punch, and will work together to produce greater dangers from fire.

She emphasized the need to take transformative action, and prioritize adaptation and mitigation. “It is heartbreaking to see it all playing out as we have predicted for so long,” she said. “The changes we have teed up for ourselves are going to be catastrophic.”

Thursday, January 22, 2026

As Winter Warms, Olympic Athletes, Organizers Hunt for Elusive Snow. Future games will need to be held at higher altitudes, and spread over multiple venues in order to adapt to a changing climate, new research suggests.

Gus Schumacher, a member of the U.S. cross-country skiing team, left, competing in Planica, Slovenia, in March 2023.Credit...Maja Hitij/Getty Images
 

Two weeks less snow on average recorded in mountain areas since 1982


 
 

 

As an elite cross-country skier who grew up in Alaska, Gus Schumacher is used to training and racing in biting cold and driving snowstorms. But in recent years, Mr. Schumacher, who is preparing to compete in several events at the Milan-Cortina Winter Olympics next month in Italy, has been skiing through wet, mushy snow surrounded by barren hillsides.

“It’s entirely man-made snow and kind of brown on the sides,” Mr. Schumacher said about some of his recent competitions. “It’s not the nicest way to ski.”

After a warm and dry early winter in the Italian Alps, local officials now say this year’s outdoor venues have enough machine-made snow to last for the 19 days of competition.

But Olympic organizers say holding a winter sports extravaganza every four years is becoming less certain, and will require more flexibility to pull off, thanks to a warming planet.

 

“By the middle of the century, we will probably have around 10 to 12 countries to have a cold enough climate to host Olympic snow sports,” said Karl Stoss, chairman of the International Olympic Committee’s Future Host Commission, which decides which cities get the games.

By 2050, of the 93 cities deemed suitable to handle the logistics of holding both the Olympics and Paralympics, just four would be able to host the events without snow-making, according to a study published Wednesday. Those cities are Niseko, Japan; Terskol, Russia; and Val d’Isère and Courchevel in France.

“Climate change is altering the geography of where the Winter Olympics and Paralympics can be held,” said Daniel Scott, an author of the study in the journal Current Issues in Tourism and professor of geography and environmental management at the University of Waterloo in Ontario. “We see a shrinking and contraction of climate reliable locations.”

Athletes who compete in the Paralympics, which is held a few weeks later at the same location, are the most affected by a warming climate, according to the new study. That’s because warmer temperatures affect the snow surface and can create more difficult and potentially unsafe conditions for the four outdoor Paralympic events: downhill skiing, snowboarding, cross-country skiing and biathlon.

Since 1992, any city wanting to host the Winter Olympics must also bid to host the Paralympic Games. That schedule requires a longer window of cold temperatures, lasting from early February to mid-March

“Because there is a one-bid, one-city partnership, it basically means you are only as climate resilient as you are for the Paralympics,” Dr. Scott said.

A snow cannon fired artificial snow toward the site of Olympic snowboard and freestyle skiing events in Livigno, Italy, this month.Credit...Yara Nardi/Yara Nardi, via Reuters
 
 

Across the entire southern Alpine region, the average depth of winter snowfall has declined by more than 25 percent since 1980, according to a 2024 study of a century of snowfall records published in the International Journal of Climatology.

Lack of snow forced cancellation of seven of the first eight World Cup downhill skiing and snowboard competitions during the 2022-23 season, followed by 26 World Cup events in the 2023-24 season, according to the new study by Dr. Scott and colleagues.

Some coaches and athletes attribute higher crash and injury rates to warm temperatures and poor snow conditions at the 2014 Sochi Games in Russia. A 2022 survey of winter athletes and coaches from 20 countries found 90 percent worried that climate change was negatively affecting their sport.

Previous Winter Olympic venues such as Grenoble, France; Chamonix, France; Garmisch-Partenkirchen, Germany; and Sochi, Russia, would not be suitable as future host cities by 2050, according to a previous study by Dr. Scott. Projected snowfall would not be enough to make up for daily melting, and the finish line of the downhill ski run at each venue would not freeze overnight, making it unsafe, the study found.

A second group of previous host cities — Vancouver, Canada; Palisades Tahoe, Calif; Sarajevo, Bosnia-Herzegovina; and Oslo — would be “climatically risky.”

In their new findings, Dr. Scott and colleagues found that the 2030 winter games scheduled for several cities in the French Alps should have reliable conditions for both the Olympics and Paralympics. But for the following Games, scheduled for Salt Lake City, the risk of marginal snowfall and snow surface conditions is higher for the later Paralympics

The ski resorts of Park City and Deer Valley, Utah, which will host several events at the 2034 games, opened several weeks late last month and have experienced one of the worst early-season snowfalls in over 30 years. The entire Rocky Mountain region had its warmest year in 2025 since record-keeping began in 1895, while Utah eclipsed its 20th century average by 4.3 degrees Fahrenheit, according to the National Oceanic and Atmospheric Administration.

Because of increasing global temperatures, I.O.C. officials are considering shifting events a month earlier, starting the Olympics in January and the Paralympics in February, according to Mr. Stoss.

Organizers are also discussing the possibility of having the two competitions at the same time in different locations to increase the likelihood of cold weather for all competitors.

Snow-making at ski resorts is common in North America, but has faced opposition by some environmental and conservation groups in Europe who say it drains local water supplies and can damage sensitive ecosystems.

As competitors and coaches prepare for the upcoming Olympics, the reality of warmer winters is beginning to sink in. Chris Hecker, a wax technician for the U.S. Cross Country Ski Team, said natural snow is becoming a rarity at elite races. His job is to wax the base of cross-country skis taking into account increasingly variable snow conditions.

“I always prefer artificial snow because it’s fast,” Mr. Hecker said. “That being said, natural snow always makes the surrounding scenes look a lot nicer when you’re skiing.”

Wednesday, January 14, 2026

The western US is in a snow drought, raising fears for summer water supplies

Snowboarders and skiers stand at the summit of Keystone ski resort in Keystone, Colorado, on December 16, 2025. Hyoung Chang/The Denver Post/Getty Images

 By 

Brad Riesenberg has worked in the winter sports industry for more than 20 years, and he’s never seen a winter with such paltry snowfall and mild temperatures as he has this season.

Riesenberg, who is an owner at Backcountry Snowmobiling in Park City, Utah, said customers have been canceling their tours due to a lack of snow. Snowmobiling requires a thick snowpack at lower elevations in order to be viable, Riesenberg pointed out.

“We’ve lost lots and lots of money and it’s been pretty tough,” he said. “This is up there with some of the worst [winters], if not the worst.” 

 

Utah is in a snow drought and it’s not alone: Much of the vast, mountainous West is missing its lifeblood — fueled by record-hot temperatures so far this winter. California’s Sierra Nevada Mountains, only recently pasted with heavy snow from atmospheric river storms, are the exception.

And while this is an immediate problem for businesses and active outdoors fans, experts are also worried about bigger implications in the near future.

If the trend continues, it could deepen the West’s long drought, aggravating already contentious negotiations about allocating water along the Colorado River. It could also heighten wildfire risks and reduce water supplies in other areas well beyond the Colorado River Basin.

While there is some snow in the Colorado Rockies, many observing stations that are part of the SNOTEL snow condition monitoring network show record to near-record low levels, below anything seen since the winter of 1980-81, when some of these stations were first installed, said Russ Schumacher, Colorado’s state climatologist. 

 

“There’s not really anywhere in Colorado that’s doing really well,” Schumacher said. Poor snowfall seasons have happened in the state before, but a “persistent ridge of high pressure” across the West has kept both cold air and snowstorms at bay, he said.

For example, Schumacher said the average temperature in Fort Collins, Colorado, during December blew away the previous record and was equal to the average temperature for the month of March. He said the warmth is dominating weather conversations in the region.

“You can’t not notice when December feels like March,” he said. 



Conditions could turn around in time for a thicker snowpack to yield plenty of spring runoff. But in order to do so, and reach even average snowpack conditions by March, the region would have to see a consistent period of storminess and colder temperatures, lasting on the order of weeks to months, neither of which are currently in the forecast, Schumacher noted.

“The concerns are there for sure, because you don’t want to be sitting at a record low in January, but the end state is not locked in yet,” he said. “Another dry year doesn’t bode well for the Colorado River System.” 

 

Schumacher’s counterparts in Utah and Arizona are also warily eyeing medium-range weather forecasts for any signs of a change in the weather pattern that would signal an improvement in their water outlook as well.

Erinanne Saffell, the Arizona state climatologist, said Phoenix and Tucson had their hottest Decembers on record, and typically snowy places such as Flagstaff have also been unusually warm and dry. She acknowledged the poor start to the snow season but said there is still time to build up more snow cover. Although, like Schumacher, she noted it would take a significant weather pattern shift to avoid intensifying the region’s long-running drought.

“So we still have January, February and March to get through,” she said, noting that there has been a recent, multi-year trend toward building up a higher snowpack in March.

“We’ll just keep watching this.”

Heat killed ‘staggering’ 50,000 people in Europe’s cities this summer, scientists warn

  Hot days pushed vulnerable bodies into overdrive and warm nights prevented them from recovering. Photograph: Anadolu/Getty by   Ajit Nira...