Click on a thumbnail graphic for a gallery of snowpack data from the Natural Resources Conservation Service.
From the Laramie Boomerang (Chilton Tippin):
The Laramie River reached 6.3 feet Tuesday in Laramie, entering “moderate-flood” stage. With warming temperatures and rain in the forecast, it could reach 6.7 feet by June 1, according to the National Weather Service. The “major-flooding” threshold is 7 feet.
Nearly 200 volunteers checked in at Woods Landing and Big Laramie Valley Volunteer Fire Department stations Tuesday to pile thousands of sandbags near the rising river…
The Snowy and Sierra Madre ranges got between 3 and 4 feet of snow on Mother’s Day, followed by temperatures warming to above 70 degrees and rainstorms over the weekend, Binning said.
From The Denver Post (Scott Willoughby):
Even in land-locked Colorado, Memorial Day served as a day at the beach for folks across the state.
High water in rivers statewide brought out the adventurous and encouraged others to take a more cautious approach and enjoy the views from dry land as the potential hazards of swift and surging currents began to reveal themselves at the start of what is expected to be a banner year for snowmelt runoff.
“It’s a blessing in that our overall season ends up being really, really good,” said Antony McCoy, head boatman and operations manager for Vail-based Timberline Tours whitewater rafting company. “But during the early season in a year like this, we often have to reroute and run trips differently than normal in the name of safety. Out decisions are always based on safety first and fun second, and we make those decisions day by day.”
With warm temperatures and weekend precipitation boosting flows, Timberline Tours and other established commercial rafting companies were forced to make reroute Memorial Day trips away from the raucous Dowd Chute section of the Eagle River between Minturn and EagleVail. The company institutes a cutoff for commercial trips through the Class IV-plus run when the river broaches 4½ feet on the gauge installed atop Dowd Chute, launching just below the most severe whitewater rapids instead.
“That’s a fun level for expert kayakers, but it gets tricky in a raft,” McCoy said. “And with water this high, most clients don’t really notice the difference. They still love it.”
Ironically, it’s just about the time that many commercial rafting companies begin to take more extreme precautions when many of the most daring decide that conditions are optimal.
A few miles below the Eagle River’s confluence with the Colorado River, the state’s growing cadre of river surfers arrived en masse at the increasingly renowned Glenwood Springs Whitewater Park on Monday. There they were greeted by river flows unseen on the Colorado since the high-water year of 2011, measuring in the neighborhood of 16,000 cubic feet per second below the confluence with the Roaring Fork River.
“I drive up here from Boulder just about every weekend this time of year,” said Ben Smith, a stand-up paddle (SUP) surfer of two years who had never ridden the river at flows above 5,000 cfs before this spring. “This season, I’m going to surf it as much as I can, and every weekend is like a new experience for me. It’s a different wave each time. Better and better.”
Surfers on Monday’s unofficial launch of summer were lined up as many as 10 deep on both sides of the Colorado River at West Glenwood, some with paddles and others with traditional surfboards diving headlong into the raging currents before popping to their feet for rides lasting several minutes. They alternated with — and largely outnumbered — skilled whitewater kayakers performing tricks in the frothy whitewater as spectators on the banks took in the show. One photographer launched a drone above the surfers to capture the action on video.
“This wave is by far my favorite,” Smith added. “A lot of kayak play holes have a big foam pile that’s designed to hold the kayaks in the play spot, whereas this wave is so steep that it’s gravity that’s pulling you down the face of it, which is what an ocean wave does. Plus it’s so clean. You can make these nice big turns on a clean, green wave. It’s the closest thing to ocean surfing I think that you are going to get in Colorado.”
In a state renowned for its paddlesports offerings and participation, it comes as no surprise that Smith and several others have adapted a paddle to the surfing equation. Credit for SUP’s origin goes back to Honolulu, where it was known as “beach boy” surfing by the Hawaiians who used paddles while standing to photograph tourists taking surfing lessons more than 50 years ago. The sport’s recent resurgence on the ocean has rapidly crept inland during the past decade, where it has established a home on and around the beaches of Colorado.
From the Colorado Daily (Sarah Kuta):
The heavy rains and scattered thunderstorms in Boulder County over the weekend gave emergency officials a taste of what may be coming during flash flood season this summer. With the ground still heavily saturated from September’s floods, the rain that fell off and on for multiple days last week pooled in underpasses, streets and drainage areas, and it gave residents of the area burned in the Fourmile Fire of 2010 a short-lived scare. Ultimately, emergency officials said the storms didn’t cause any significant destruction and allowed them to test their plans ahead of what’s sure to be another busy flash flood season in Colorado…
Flash flood season officially began April 1 and ends Sept. 1, though it’s not just local rains and thunderstorms that can cause flooding, Chard said.
Thunderstorms high up in the mountains can cause the snow to melt quickly, prompting spring runoff to accelerate and fill the creeks within the county. Chard added that extra runoff may also occur because the ground is still saturated with water from September’s floods. The water table can stay elevated for a year to 18 months after such a major rain event, Chard said.
All of those factors have led emergency officials to ask residents to be extra vigilant this flash flood season.
“Make sure you’re signed up for emergency warnings, have a plan, have a weather radio,” Chard said. “Pay attention to the skies; pay attention to the forecast.”
From Steamboat Today (Tom Ross):
With 20 inches of water still stacked up in the snow on Rabbit Ears Pass and forecasts of daily high temperatures pushing into the low 80s Wednesday before tapering off to the mid-70s later in the week, the Yampa River in Steamboat Springs has a chance to reach the bank-full stage at the Fifth Street Bridge June 4 to 5. But the current outlook does not foresee it exceeding flood stage of 7.5 feet in the next 11 days.
The Yampa was flowing harmlessly over its banks and bypassing its meanders in the vicinity of Rotary Park as of late Sunday afternoon.
The Elk River at its confluence with the Yampa west of Steamboat is another story. The Colorado Basin River Forecast Center in Salt Lake City, Utah, updated its projected streamflows for the Elk Tuesday morning and reported that the river shot beyond bank-full over the holiday weekend and could nudge flood stage overnight Wednesday and Thursday before dipping just under flood stage again during the daylight hours. A tentative forecast for the Elk, which is weather dependent, anticipates the river will go higher June 1 to 3 but continue to bounce above and below flood stage during its diurnal cycle, which sees peak flows at night…The Elk was flowing at 4,090 cubic feet per second at 4 p.m. Tuesday, and to put that in perspective, it peaked at 6,860 cfs on June 6, 2011. The Yampa, which was flowing at 3,360 cfs Tuesday afternoon, peaked at 5,200 on June 7, 2011.
The snowpack on Rabbit Ears is 175 percent of the median for the date, and some of that snowmelt will inevitably flow down Walton Creek, which passes through the city’s southern suburbs near Whistler Park before running beneath U.S. Highway 40 and quickly into the Yampa.
Soda Creek is another tributary of the Yampa that can create minor flooding in Old Town Steamboat. #City of Steamboat Springs Public Works Department Streets and Fleet Superintendent Ron Berig said Tuesday the creeks become a problem when the Yampa gets so high it backs up its tributaries.
From the Sky-Hi Daily News (Hank Shell):
With rivers already running high and temperatures expected to rise, the National Weather Service has extended a small-stream flood advisory for Grand County until 9:30 p.m. on Thursday, May 29. Nowell Curran with Grand County’s Office of Emergency Management said her office gave the go ahead to extend the advisory due to a possible increase of runoff into the already swollen Upper Colorado River and its tributaries…
Snowpack in the Upper Colorado River Basin was over 140 percent of its normal level in April, according to a Natural Resources Conservation Service snow survey. Officials said earlier this year that they were preparing for a run-off season comparable to 2011, but Curran said that the worst case scenario could now surpass the destructive flooding Grand County saw that year.
From KUNC (Jackie Fortier):
Northern Colorado’s water storage is nearing capacity headed into the peak season for farm and residential users due to mountain snow melt and rains. Horsetooth Reservoir and Carter Lake are already full.
“We haven’t been this full for a couple years at the two reservoirs,” said Brian Werner, spokesman for Northern Colorado Water Conservancy District.
“We’re anticipating that we’re going to fill our west slope storage as well. Lake Granby the second largest reservoir in the state, we anticipate, that if we don’t fill it up completely we’re going to get very close,” Werner said…
High mountain snow melt and recent rains caused the Big Thompson River to peak at 11 hundred cubic feet per second over the weekend, well above its usual peak of 900 cubic feet per second. The Cache La Poudre peaked at 4700 cubic feet per second over the Memorial Day weekend, it’s normal peak is 3,000 cubic feet per second…
“What it means is we can’t capture much of that water. And most of the local storage, the reservoirs, that people see when they drive around Northern Colorado are full for the most part, so what’s going to happen unless ditches are opened and are ready to take as much of that water as they can, we’re going to see a lot of that water just pass downstream into Nebraska,” he said.
From The Denver Post (Tom McGhee) via the Loveland Reporter-Herald:
The National Weather Service has placed the Cache La Poudre River near Greeley under a flood warning and numerous roads are closed in the area.
“For the most part, the flooding today is snowmelt in the high country,” Evan Kalina, a meteorologist with the National Weather Service in Boulder, said Tuesday afternoon.
The river was overflowing its banks, with water rising 8.9 feet from the riverbed at 10:30 a.m. Tuesday. It is expected to reach 9 feet by Tuesday evening.
“Once you reach 8 feet, you start to see the water spilling into low-lying areas,” Kalina said.
By 9 a.m. Thursday, water is expected to fall below flood level and the flood warning is expected to be lifted, Kalina said.
Flood advisories — which signal that stream and river levels are higher than normal, but not at flood level — were in effect along the Cache La Poudre, Big Thompson and St. Vrain Rivers in Larimer and Weld counties until 7:15 p.m. Tuesday evening.
Jackson and Grand counties are under flood advisories until 9:30 a.m. Thursday. The area has been hit by thunder and hail storms, and even tornadoes, during the past week or so.
But the chance of rain in the next few days is low, at about 20 percent, Kalina said. Heavier moisture will move in during the weekend, but “at this point it is unlikely that the weather will be as active as it was last week,” Kalina said.
Temperatures are expected to hover in the low to mid-80s for the rest of the week, Kalina said.
From email from Wyoming Governor Matt Mead:
Governor Matt Mead is sending three more Wyoming National Guard teams to Carbon County today. The North Platte River in Saratoga is expected to rise to record levels this week. In total there will be 150 National Guard personnel in Carbon County today. They have been assisting local efforts since this weekend by filling thousands of sandbags.
“This is a tense time for Saratoga and several other communities in Wyoming. I know the local officials, the Wyoming National Guard, the Office of Homeland Security, the Smokebusters and volunteers are working very hard to protect the people and homes. It is a team effort,” Governor Mead said.
There will be 150 National Guard soldiers and airmen, more than 80 volunteers and 24 members of the Smokebusters team, which assists with forest fire fighting and flooding, in Carbon and Albany Counties today. The Wyoming Office of Homeland Security also has personnel across Wyoming working with emergency managers from counties and municipalities.
“This is a comprehensive state response,” said Guy Cameron, Wyoming Office of Homeland Security Director. “Governor Mead has told us to protect Wyoming communities from flooding and we are doing everything possible to make that happen.”
Governor Mead increased the numbers of Guard personnel deployed to Saratoga today due to warmer temperatures and increased rainfall.
“It’s an important mission for us to keep Wyoming residents safe during flood season and to support local prevention efforts,” said Maj. Gen. Luke Reiner, Wyoming’s Adjutant General.
Photos of Guard operations can be found at http://www.flickr.com/photos/wyoguard.