Posted on April 10, 2015 by Bob Berwyn
A dwindling snowpack means increased fire danger. This low spring snowpack in 2012 was followed by a severe wildfire season in Colorado.
‘The next several weeks are going to be critical in terms of precipitation’
FRISCO — Early snowmelt and above-average temperatures have upped the fire danger across parts of the Rocky Mountain and high plains region, federal officials said this week, forecasting a more active wildfire season than last year.
“This year we are expecting an average to above-average fire season,” said Rocky Mountain Area Coordination Center fire meteorologist Tim Mathewson. “A repeat of a 2000, 2002, 2006 and 2012 historic fire season is unlikely at this time; however, the next several weeks are going to be critical in terms of precipitation.” Continue reading
Filed under: climate and weather, Colorado, Drought, Environment, seasons | Tagged: climate, Rocky Mountains, snowpack, wildfire danger, Wildfires | Leave a comment »
Posted on April 8, 2015 by Bob Berwyn
April 1 snowpack the 3d-lowest in 30 years; state preps for low runoff and summer streamflows
Colorado snowpack started to decline in March, a month ahead of schedule.
Colorado experienced widespread warmth in March.
By Bob Berwyn
FRISCO — Colorado water users need to prepare for below-average spring and summer runoff and streamflow based on the all-important April 1 snow survey, which showed a startling drop in the state’s snowpack since early March.
After tallying readings from automated SNOTEL sites and manual snow surveys, the federal Natural Resources Conservation Service said the water content of the snowpack is just 64 percent of average, down from 89 percent at the beginning of March.
“This is showtime when it comes to hydrological cycle in Colorado,” said state climatologist Nolan Doesken, referring to the fact that the state’s snowpack usually increases significantly in March and April. Continue reading
Filed under: climate and weather, climate change, Colorado, global warming, Snow and weather, Summit County snow and weather | Tagged: climate change, Colorado, Colorado snowpack, Colorado weather, global warming, runoff, snowpack | Leave a comment »
Posted on September 3, 2014 by Bob Berwyn
More midwinter snow, but faster spring meltout seems to be the new climate norm in the northern hemisphere.
‘As shifts in the timing of meltout occur, we lose an important and relatively stable snowpack reservoir …’
FRISCO —Dwindling spring snow cover in the northern hemisphere could accelerate the pace of global warming, as darker-colored ground emerges earlier in the year, absorbing more of the sun’s heat and intensifying atmospheric warming.
The spring decline is evident despite a trend toward more snow in mid-winter — but June snowcover in the northern hemisphere has been below average 10 years in a row. The downward trend is mainly due to warmer temperatures, not to any big changes in overall precipitation totals, according to the most recent IPCC climate assessment. Continue reading
Filed under: climate and weather, Environment, global warming, rivers, water | Tagged: climate change, Environment, global warming, snow cover extent, snowpack, water | Leave a comment »
Posted on June 7, 2014 by Bob Berwyn
South Platte Basin snowpack at 315 percent of average
Big snowpack lingers in Colorado Rockies. bberwyn photo.
FRISCO — Rivers in northern Colorado will continue to flow at high levels for several more weeks, water watchers said last week, releasing the results of the June 1 snowpack survey. While runoff season is well under way, the remaining snowpack in the Colorado River Basin is still 223 percent of median and 80 percent higher than last year’s snowpack on June 1.
The most snow lingers in the South Platte Basin, where the snowpack is at 311 percet of median. All basins north of the Gunnison are well above average, but the state’s southern basins have nearly melted out, continuing a run of drought conditions and heightening concerns about this summer’s fire season. The Rio Grande Basin and the San Juan, Animas, Dolores and San Miguel basins are at 59 and 39 percent of median, respectively. Continue reading
Filed under: climate and weather, Colorado, Environment, water | Tagged: Colorado, snow survey, snowpack, water | 2 Comments »
Posted on April 4, 2014 by Bob Berwyn
A deep snowpack in late March along Tenmile Creek, in Frisco, Colorado. bberwyn photo.
Snowpack bountiful north, a little sparse in the San Juans
By Summit Voice
FRISCO — A persistent weather pattern across the U.S. in March once again benefited Colorado’s northern and central mountains, as a steady stream of storms brushed down the northern Rockies before roaring into the Midwest.
In the northwestern part of the state, the snowpack increased in the Colorado and Yampa river basins. The South Platte River Basin is at a near-record level. similar to 2011, according to the USDA Natural Resources Conservation Service, which released results of the all-important April 1 snowpack survey.
By contrast, southwestern Colorado is on the eastern edge of a large area that’s very dry, including near-record drought in California. The snow survey showed snowpack conditions across the southern mountains tracking below normal for the third consecutive month.
Filed under: climate and weather, Colorado | Tagged: April 1 snow survey, Colorado snowpack, NRCS, snowpack, water | 1 Comment »
Posted on March 14, 2014 by Bob Berwyn
State releases draft climate change report, comments wanted
How warm will it get in Colorado?
By Summit Voice
FRISCO — Climate experts say it’s about to get warmer —probably much warmer — in Colorado. A draft state climate report released this week for public comment shows that Colorado has warmed by 2.5 degrees Fahrenheit in the past 50 years. By the middle of this century, summer temperatures will be higher than in all but the hottest years, with another 2.5 to 5.5 degrees of warming expected. Continue reading
Filed under: climate and weather, Colorado, Drought, extreme weather, global warming | Tagged: Colorado, Colorado climate change plan, global warming, runoff, snowpack | 1 Comment »
Posted on March 7, 2014 by Bob Berwyn
Big parts of the West are experiencing a moisture deficit this winter, with drought continuing in California.
Northwest flow favors Colorado’s northern mountains
By Summit Voice
FRISCO — For the third month in a row, Colorado snowpack is tracking above average. February, ended with the snowpack at 116 percent of median, with snowfall to-date for the water year (starting Oct. 1) at 133 percent of average.
A series of wet storm cycles pummeled the mountains during the month, with the bullseye over the north-central region, where some stations reported nearly double the average monthly snowfall. The no-Niño weather pattern has left a moisture deficit in the southwest part of the state, where the Upper Rio Grande and the combined San Miguel, Dolores, Animas and San Juan basins, are still experiencing below normal snow conditions for this time of year. Continue reading
Filed under: climate and weather, Colorado, Snow and weather | Tagged: climate, Colorado, snowpack, water, weather | Leave a comment »