Late Spring Snow Blankets Rockies, Disrupting Colorado and Wyoming

Key facts

• A late spring snowstorm is impacting Colorado and Wyoming.
• Isolated areas in the Rockies could see up to 30 inches of snow.
• Denver may experience its largest snowfall of the season, with up to 8 inches predicted.
• Boulder could receive over a foot of snow.
• Denver Public Schools canceled classes due to severe weather.
• Xcel Energy has 165 employees on standby across Colorado.
• The storm follows a period of record dry winter conditions in the region.

Unseasonal Storm Buries High Plains

A powerful late-spring storm has swept across the Rocky Mountains and into the High Plains, bringing heavy, wet snow to parts of Colorado and Wyoming. While many areas of the West have experienced below-average snowfall this past winter, this unseasonable event is blanketing higher elevations with significant accumulation. Isolated totals of up to 30 inches are possible in the Rockies, a stark contrast to the mild conditions elsewhere. The storm arrived Tuesday, dumping snow north of Denver and into southeastern Wyoming. Residents in affected areas are once again reaching for snow shovels, a task usually reserved for months earlier in the year. This development comes as some Americans were already contemplating gardening and warmer weather activities. In Fort Collins, Colorado, heavy snow fell throughout the day, though the ground remained too warm for substantial accumulation. The slushy snow coated leaves, grass, and flowers, prompting some homeowners to shut off yard sprinklers to prevent damage from sub-freezing temperatures.

Denver Faces Season's Biggest Snowfall

The Denver metropolitan area, which experienced mostly rain on Tuesday, saw the precipitation transition to snow by early evening. Forecasters predict up to 8 inches of snow could fall in Denver into Wednesday, potentially marking the city's largest snowfall of the entire season. This is particularly notable given that Denver had imposed lawn-watering restrictions due to low mountain snowpack earlier in the year. Boulder, situated against the mountains, is expected to receive even more significant accumulation, with forecasts suggesting upward of a foot of snow. This May storm is a surprising turn of events for a region that has endured a historically dry winter. "We just had our driest winter on record," stated Kenley Bonner, a meteorologist with the National Weather Service's Denver office. "We were kind of joking earlier in the season that winter’s not going to come until spring, and it did exactly that."

Widespread Disruptions and Preparations

The severe weather has led to significant disruptions across the region. Denver Public Schools, the state's largest school district, along with other major districts and colleges, canceled classes for Wednesday. This decision was made to ensure the safety of students and staff amidst the hazardous conditions. Concerns about the storm's impact on infrastructure are high. Accumulated snow could lead to snapped tree branches and widespread power outages. Utility companies are taking proactive measures; Xcel Energy has placed 165 employees on standby across Colorado to respond to potential service disruptions. Despite the ominous forecast, some events proceeded. Thousands attended a David Guetta concert at Red Rocks Amphitheatre. Organizers moved the show's start time up by an hour, hoping to allow attendees to travel home before the storm's peak intensity. Concertgoers were seen bundled in winter attire, braving the unseasonable cold.

Infrastructure Under Strain

Highways remained open on Tuesday, though conditions were challenging. Interstate 80 across southern Wyoming, including a high-elevation stretch between Cheyenne and Laramie that is frequently closed, was passable. Webcams, however, showed heavy snowfall along these routes, indicating the severity of the storm's impact on transportation. Utilities are bracing for potential issues. Xcel Energy's decision to place employees on standby reflects the anticipated strain on power grids. The combination of heavy, wet snow and strong winds can lead to downed power lines and equipment failures, especially when trees and branches succumb to the weight of the snow. The potential for damage extends to residential areas as well. Homeowners in Fort Collins were advised to shut off sprinklers to prevent pipes from freezing and bursting, a concern typically associated with the heart of winter, not late spring.

A Forecast Defying Seasons

Meteorologists describe the current weather pattern as unusual but not unprecedented for the region. The storm's timing, arriving well after the typical end of winter, highlights the unpredictable nature of mountain weather systems. Rob Shackelford, a meteorologist, is analyzing the specific atmospheric conditions contributing to this late-season snowfall. The National Weather Service indicated that warmer temperatures are expected to return by Thursday, signaling a potential end to this unseasonable cold snap. However, the immediate impact of the heavy snow and plunging overnight temperatures will continue to be felt. This event underscores the challenges of forecasting in dynamic climates, particularly in mountainous regions where localized weather can deviate significantly from broader regional patterns. The storm's arrival serves as a potent reminder of nature's capacity to surprise, even as seasons appear to be transitioning.

Looking Ahead: Thawing and Recovery

As the storm moves through, the focus will shift to recovery and the return to more typical spring conditions. The rapid melting of the accumulated snow could present its own set of challenges, potentially leading to localized flooding in some areas. The impact on agriculture, particularly for early-season crops, will also be a point of observation. Residents and authorities will assess the extent of damage to infrastructure, including power lines and trees. The preparedness of utility companies will be tested as they work to restore any outages and repair damaged equipment. The return of warmer temperatures by Thursday should facilitate the melting process and allow for a return to normalcy. However, the memory of this significant late-spring snowfall will likely linger, a testament to the region's volatile weather patterns.

The bottom line

• A significant late-spring snowstorm is affecting Colorado and Wyoming, with potential for up to 30 inches in the Rockies.
• Denver could see its largest snowfall of the season, prompting school closures and utility preparedness.
• The storm follows an unusually dry winter, highlighting regional climate variability.
• Infrastructure, including power grids and transportation routes, is under strain.
• Warmer temperatures are forecast to return by Thursday, signaling the end of the unseasonal cold.