Posted on July 14, 2015 by Bob Berwyn
Study tracks eastern Mediterranean climate trends
This image shows simulated precipitation (over 24 hours from 6 to 7 July 2012) of a model run using observed sea surface temperature (a) and (b) using a colder SST representative of the early 1980s). The black cross marks the town of Krymsk, the thin black lines are height contours with a distance of 150 metres. Graphic courtesy GEOMAR Helmholtz Centre.
FRISCO — Rapidly warming sea surface temperatures are resulting in more extreme coastal rainstorms, Russian and German researchers said after analyzing climate data from the eastern Mediterranean and the Black Sea.
The impetus for the study was a deadly 2012 flash flood in the Russian city of Krymsk, near the Black Sea coast that killed 172 people. The Black Sea and eastern Mediterranean have warmed by about 2 degrees Celsius since the early 1980s.
The study was led led by scientists at the GEOMAR Helmholtz Centre for Ocean Research in Kiel, Germany, and published in the international journal Nature Geoscience. Continue reading
Filed under: climate and weather, climate change, extreme weather, flooding, global warming | Tagged: climate change, extreme weather, global warming, Krymsk, Sochi | Leave a comment »
Posted on June 16, 2015 by Bob Berwyn
Denver Water juggling inflow, outflow
After peaking later than average, the sremaining nowpack in the Blue River Basin is melting fast. Graph courtesy Denver Water.
Flows in Blue River tributaries like Straight Creek are near their seasonal peak.
*Story corrected at 2 p.m. Dillon Reservoir outflow to the Blue River increased to 1,600 cfs Monday, July 15.
FRISCO — Dillon Reservoir should be full within a week, according to the latest update from Denver Water, which just bumped up the outflow to the Lower Blue to make room for more runoff the next few days.
As of June 15, Denver Water was releasing about 1.600 cubic feet per second from Dillon Reservoir, with about 2,200 cfs flowing in from the Blue River and its tributaries. And Denver Water is expecting more high inflows for the foreseeable future, according to a recent email update:
“A fresh look at the estimated level of snowpack above Dillon Reservoir … tells us there is still eight inches of snow in some places, meaning high flows can be expected for the foreseeable future. The good news is that inflows to Dillon Reservoir – which have ranged from 2,206 to 2,623 over the past several days – appear to be trending downward.” Continue reading
Filed under: climate and weather, Colorado, Summit County snow and weather | Tagged: Blue River, Colorado, Denver Water, Dillon Reservoir, Summit County Colorado, Summit County News, water | 1 Comment »
Posted on June 7, 2015 by Bob Berwyn
Wet spring boosts streamflow forecasts
Staff ReportFRISCO — Statewide precipitation was more than twice the average, federal water watchers said in their June update. The rain and snow, along with cool temperatures at higher elevations, delayed the onset of runoff and boosted streamflow forecasts for the summer. “This substantial addition of moisture, both in the form of snow and rain have notably increased water supply forecasts across the state from a month ago,” said Brian Domonkos, the Colorado snow survey supervisor for the USDA Natural Resources Conservation Service. Continue reading
Filed under: agriculture, climate and weather, Colorado, Snow and weather | Tagged: Colorado, Colorado water, miracle May, snowpack, streamflow forecasts, weather | Leave a comment »
Posted on June 6, 2015 by Bob Berwyn
Hikers, motorists warned about overflowing streams and rivers
Subtropical moisture streaming into Colorado is triggering more flood concerns.
Flooding is possible in southwest Colorado, parts of the high country, as well as many Front Range streams.
FRISCO — With more subtropical moisture streaming into Colorado from the Southwest, parts of the state are under flood watches and flood warnings at the start of the weekend, including:
- South Boulder Creek near Eldorado Springs,
- Cache La Poudre River near Greeley affecting Weld County.
- South Platte River at Henderson affecting Adams County.
- South Platte River near Kersey affecting Weld County.
- South Platte River near Weldona affecting Morgan County.
- South Platte River near Balzac affecting Logan, Morgan and
In the high country, the Eagle River is expected to come close to overflowing this weekend, with a flood advisory for the weekend. Other rivers running high include the Roaring Fork between Aspen and Glenwood Springs and the Colorado River from the Eagle/Grand County line to the Utah border. Continue reading
Filed under: climate and weather, Colorado, El Niño, extreme weather, flooding | Tagged: Colorado weather, extreme weather, flood warnings, flooding, Salt Creek landslide | 2 Comments »
Posted on May 23, 2015 by Bob Berwyn
Good news for boaters
Healthy streamflows and good boating in the Blue River Basin. @bberwyn photo.
Blue River snowpack still growing.
FRISCO — Late-season storms have helped boost snowpack in the Blue River to near last year’s level, promising healthy runoff and flows in Summit County, according to Denver Water.
The effects of the steady barrage of spring storms is already showing up the Lower Blue River, where flows are increasing due to increased releases from Dillon Reservoir, according to Denver Water, which won’t be diverting water through the Roberts Tunnel until mid-July at the earliest. Continue reading
Filed under: climate and weather, Colorado, Colorado River, Snow and weather, Summit County Colorado, Summit County snow and weather | Tagged: Blue River, climate, Colorado, Denver Water, Dillon Reservoir, kayaking, snowpack, streamflows, water, whitewater rafting | 1 Comment »
Posted on May 21, 2015 by Bob Berwyn
Extreme storms can happen outside expected times
FRISCO — A new study led by Colorado-based scientists seems to reinforce the old saying that, when it comes to the state’s weather, there’s no such thing as normal.
The research aimed to track seasonal and geographical patterns of extreme weather events, especially the monster storms that create headaches for emergency responders and resources managers. But pinpointing those trends is not easy the weather experts found. Continue reading
Filed under: climate and weather, Colorado, extreme weather, seasons, Summit County snow and weather | Tagged: climate change, Colorado, Colorado flooding, Colorado weather, extreme weather | 2 Comments »