Dust on snow cuts Colorado River flows by 5 percent

Ground-breaking study quantifies impacts of human land-use patterns in southwestern deserts By Summit Voice SUMMIT COUNTY — Desert dust falling on snow in the high country may be cutting Colorado River flows downstream by as much as 5 percent each year — about twice the amount of water that Las Vegas uses annually. Reducing dust […]

Climate: Bioparticles in dusty air may be key to rain and snow formation

Researchers starting to take nuanced look at chemical composition of aerosols Staff Report FRISCO —Scientists have long known that tiny grains of airborne dust are key players in the formation of rain and snow, driving precipitation patterns across the drought-stricken western U.S. and other areas. New research suggests that  the exact chemical make-up of that […]

Environment: ‘Extreme’ dust-on-snow events can speed runoff in Colorado River Basin by six weeks

2013 brought record levels of dust to Colorado’s mountains By Bob Berwyn FRISCO — Dust storms that darken the Rocky Mountain snowpack and speed snowmelt are becoming more extreme, according to new research. Particularly heavy dust-on-snow events can speed the melt-out of the snowpack by a full six weeks, all other factors being equal, said […]

Study: Dust from Asia a significant factor in Sierra snow

Next step: Figure out how climate change may affect those patterns By Summit Voice SUMMIT COUNTY — Airborne dust has been shown to speed up snowmelt in the Colorado Rockies, but there’s more to to global dust and snow story, according to a NOAA-led study showing that dust and microorganisms from as far away as […]

New dust studies help pinpoint impact on Colorado snow

Asian dust arriving over North America in significant quantities By Summit Voice SUMMIT COUNTY — The desert Southwest isn’t the only source of dust in the atmosphere over Colorado. As much as 64 million tons of dust from minerals, soils, pollutants and other sources cross the ocean from Asia, carried by prevailing west winds, and […]

Colorado: Dust layers a factor in record-early snow melt

Report links wind-blown dust with early runoff By Summit Voice SUMMIT COUNTY — Along with above-average temperatures and dry and sunny weather, spring dust storms in March and April likely were a significant factor in this year’s record early snow-melt season, according to the Silverton-based Colorado Center for Snow and Avalanche Studies. Snow that’s darkened […]

Colorado: Dust-on-snow research faces funding crunch

San Juan-based research yielding valuable data on snowmelt and runoff By Bob Berwyn SUMMIT COUNTY — A critical research program that helps assess the effects of wind-born dust on Colorado’s snowpack and runoff is fighting for financial survival. To continue operating the Senator Beck Basin long-term monitoring program after this season, the Silverton-based Center for […]

Colorado weather: Big Front Range snows, mountain dusting

Warm and dry during the Christmas weekend SUMMIT COUNTY — Widespread snow across Colorado favored Front Range locations once again, with 18 inches at Echo Mountain and 14 inches at Eldora, but most ski areas picked up at least a few inches, with Summit County resorts reporting between 2 inches (A-Basin) and 5 inches (Breckenridge). […]

Weatherblog: June snow dusts Summit County

June snowfall dusts Summit County, Colorado.

Weatherblog: Brrrrr – look for a dusting of snow

Rain and snow through Sunday; warmup early in the week By Summit Voice SUMMIT COUNTY — Our late-spring heat wave was punctuated by thunder and lightning Friday night, ending a string of days with near-record highs in the 70s. Much cooler weather for the weekend, with a 42-degree reading at 11 a.m. Saturday in Dillon, […]

Follow

Get every new post delivered to your Inbox.

Join 8,395 other followers