Residents of Colorado are facing unprecedented water restrictions due to a historic snow drought and extreme heat wave.

On Wednesday, Denver Water announced the need for a 20% reduction in water usage, urging residents to disable automatic irrigation systems until mid-May and limiting tree and shrub watering to just twice a week.

Todd Hartman, a spokesperson for Denver Water, stated, “The situation is dire. If conditions don’t improve, we might have to limit water use to only one day a week in the coming months.”

This marks the first instance in 2023 that Denver Water has imposed restrictions.

Colorado’s snowpack peaked at critically low levels on March 12, about a month earlier than usual, subsequently diminishing during the recent widespread heat wave affecting nearly all Western states.

Peter Goble, Colorado’s assistant state meteorologist, noted, “Current snowpack levels are at their lowest since at least 1981, with approximately 40% of the snowpack lost since March 12 due to heat.” He added, “The situation resembles conditions typically seen in late April or early May.”

These water restrictions signal a worrying trend for many states in the West as officials strive to combat extensive drought conditions. Nearly every snow basin in the Mountain West is experiencing unprecedented winter temperatures, resulting in severely diminished water supplies. For more information, visit the US Drought Monitor. The reduced snowpack raises the risk of severe wildfires, diminishes hydroelectric power generation, and imposes additional restrictions on farmers.

Hartman remarked that communities east of the Rocky Mountains and along Colorado’s frontier are facing similar challenges as Denver.

Members of the Aurora City Council are also contemplating similar water restrictions. Current reservoir levels are about 58%, according to the city’s website. A water shortage emergency was declared on March 20 after a significant spike in consumption was reported in Erie.

Gabi Ray, the town spokeswoman, expressed concern that Erie is at risk of exhausting its water supply due to many residents watering their lawns early due to unseasonably high temperatures.

“We were on track to run out of water within just a day, which is why this is such an emergency,” she stated.

Erie officials have urged local residents to cease using irrigation systems immediately.

Goble reported that the recent heatwave has broken numerous temperature records across Colorado, often by significant margins.

“I can’t recall ever witnessing so many records fall during a single heatwave,” he noted. “For instance, in Fort Collins, last Saturday reached 91 degrees, breaking the old March record of 81 degrees, and this wasn’t just a one-time occurrence.”

Denver Water, serving approximately 1.5 million residents in and around Denver, sources about half of its water from the Upper Colorado River and South Platte River basins. Recent reports indicate that the snowfall for the latter is approximately 42% of normal levels, while the former stands at 55%.

Overall, Denver Water’s reservoirs are currently about 80% full, which is only slightly below the usual levels.

“That’s positive news,” Hartman commented. “However, with such low snowpack, we can’t rely on substantial runoff to refill the reservoirs.”

Essentially, the snowpack, serving as a natural reservoir, is largely depleted and won’t be replenished until late spring and summer when runoff typically peaks.

In Erie, officials plan to deploy smart meters to monitor residential water usage closely, implementing measures to enforce water conservation over the coming week. Ray stated that public works crews will actively patrol neighborhoods for active sprinklers.

“Residents may feel frustrated by our stringent measures, but they might not fully grasp the consequences of inaction,” Ray emphasized. “We’re facing a serious emergency where taps could run dry. Essential services, including hospitals, schools, and fire hydrants, will be affected.”

While restrictions on outdoor watering may be lifted soon, Ray anticipates more limitations will be enforced this spring and summer.