May operating plan shows near full lake at month end

With snowpack hovering right around average for this time of year, Reclamation’s May operating plan has one surprise… that being the end-of-May lake elevation of 3,634.3 ft, which is just a little more than five and one half feet below full pool. This would appear to be a tad overly conservative given our recent history with rainfall in May, but the stakeholder’s conference call is tomorrow and I’m sure there’ll be some explanation provided. Until then, use this link to have a look at the May operating plan:

May operating plan.

 

Bighorn River releases to remain at 1,850cfs

Current Snow Water Equivalent Current, Previous, and Average Lake elevations

 

Today’s conference call with Reclamation indicates they’re taking a wait-and-see conservative approach to the current inflow forecasts. While the recent storms bolstered a lagging snowpack, it wasn’t enough for them to be overly concerned with the barely 15 feet of storage left in the lake before the lake elevation strays in to the flood pool. [Note that the average lake elevation for this day is nearly 20 feet lower].

It was announced that river releases will remain at 1,850cfs for this week and presumably the following week while Reclamation continues to monitor conditions closely. Steve Davies, who led the conference call, assured stakeholders that should conditions change, the Bureau is ready to react at a moment’s notice.

For more detailed data, please click the River Status link above.

Ramp project continues

missing_ramp
T
he upper ramp at Bighorn FAS looks a little different than it did last week. FWP has broken up and removed the old ramp (now sitting in the background), and the contractor is waiting out this winter weather before beginning the final stages. In the meantime, the ramp is usable, but quite muddy.

Work set to begin on upper Bighorn FAS ramp

Thanks to the Bighorn River Alliance and its nearly 1,000 members, work to replace the upper ramp at Bighorn Fishing Access Site is set to begin tomorrow, Tuesday, April 9, 2013. The Alliance, whose mission is to preserve, protect and enhance the Bighorn River and its fishery, has donated $17,500 or half of the cost of the ramp replacement. High water and heavy use has taken its toll on the popular takeout spot, and the new ramp will be angled downstream to prevent future wear an tear during high water, and make things quite a bit safer for anglers who stage their boats there during put-in and take-out.

The work will be done in two stages: Starting tomorrow, Montana Fish, Wildlife and Parks crews will make much-needed repairs to the lower ramp, including filling in a deep hole at the end of the ramp. Next, the upper ramp will be broken up and removed. These preliminary steps will be done this week (barring any unforeseen show stopping weather). Next week, the contractor will be on site to begin landscaping and preparing the grade for several sections of ramp that will be installed. This work is expected to take two weeks, but may extend longer if more wintery or wet weather arrives.

Anglers and boaters are asked to avoid the upper ramp during this time, and exercise caution at the lower ramp. If possible, plan a few extra minutes to take out at the lower ramp.

The Bighorn River Alliance deserves special thanks for their contribution. To recognize their efforts, join us in calling the new, upper ramp the Alliance Ramp, and be sure you thank any Alliance member or director the next time you see one. Thank you, Alliance!!

Dry spring and summer forecast for Western states

[From USDA]

WASHINGTON, March 15, 2013 – March streamflow forecasts show a decline in nearly every Western state and basin, according to water and climate experts.

USDA’s Natural Resources Conservation Service National Water and Climate Center hydrologists predict dry conditions to continue from the less-than-average precipitation during February, which indicates reduced spring and summer water supply for much of the West.

Streamflow forecast

“With only one month remaining in the snow season, it’s highly unlikely the snowpack will recover to normal levels over the Four Corner States,” hydrologist Tom Perkins said.

Although other parts of the country got more snow, it didn’t have impact in the western mountains, he said.

“What fell in the West didn’t really amount to much,” Perkins said. “New Mexico, Utah and Colorado are especially vulnerable, because their reservoirs are at low levels due to sustained drought conditions.”

At this point, it looks like water supply conditions will end up below average for most of the West’s rivers. Water resource managers will need to make some difficult decisions in the coming months due to this shortage, Perkins said.

There are a few exceptions to the dry forecasts. Spring and summer streamflow forecasts as of March 1, are calling for near normal levels across Oregon, Washington, Idaho and western Montana. Below normal flows are predicted over the rest of the Western U.S.

Although some are at normal levels now, March 1 snowmelt runoff forecasts trends indicated worsening conditions as compared to the Feb. 1 report. Forecasts decreased 5 to 10 percent in Washington and Oregon; 10 to 20 percent in Montana, Idaho and Utah; 10 to 15 percent in Colorado. Forecasts increased 5 to 10 percent in north-central New Mexico, but this was not enough to make up the shortfall.

“Although NRCS’ streamflow forecasts do not directly predict drought, they provide valuable information about future water supply in states where snowmelt accounts for as much as 50 to 80 percent of seasonal runoff,” according to Perkins.

In addition to precipitation, streamflow in the West consists largely of accumulated mountain snow that melts and flows into streams as temperatures warm into spring and summer.

The March forecast is the third of six monthly forecasts issued each year between January and June by the national center. The forecast compares the current level of water content in snowpack in the 12 Western states with historical data to help the region’s farmers, ranchers, water managers, communities and other stakeholders make informed decisions about water use and future availability.

The snowfall, air temperature and numerous other factors taken from remote climate sites ultimately contribute to water supply. Typically, decision-makers and water managers wait until April for a more complete picture that accounts for these variables before making final management decisions.

NRCS will continue to monitor levels across the Western states to provide the most up-to-date water supply information each month.

“USDA streamflow forecasts play a vital role in the livelihood of many Americans,” said Jason Weller, NRCS acting chief. “With much of this region greatly affected by drought, our experts will continue to monitor snowpack data and ensure that NRCS is ready to help landowners plan and prepare for water supply conditions.”

Since 1935, NRCS has conducted snow surveys and issued regular water supply forecasts. NRCS installs, operates and maintains an extensive, automated system called Snow Telemetry, or SNOTEL, designed to collect snowpack and related climatic data in the Western United States and Alaska.

- See more at: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/newsroom/releases/?cid=STELPRDB1083269#sthash.IdQzhYgq.dpuf

Fungus outbreak worse than usual on Bighorn

BILLINGS More brown trout than usual, less water than in some past years and other factors apparently are leading to a fatal outbreak of fungus on some fish in the Bighorn River below Yellowtail Dam.Fishermen on the blue-ribbon trout stream in recent weeks have reported seeing hundreds of dead or infected brown trout.Montana Fish, Wildlife and Parks biologists said this week that the fungus is part of a natural cycle. But this year reports seem to indicate that it is worse than usual. The fungus appears as a white or cloudy growth on the skin and scales of infected fish. It generally takes a few days to a week to spread over the fish and kill it.FWP regional fisheries biologist Mike Ruggles said the fungus spores are ubiquitous in most water in Montana. Healthy fish are able to block the fungus spores from attacking their skin with the slime that covers their exterior. Fish that are stressed or at less-than-peak condition often cannot ward off the spores, which burrow through their slime and into their skin.This year, a number of conditions combined to stress brown trout in the Bighorn River, leaving them susceptible to the fungus, Ruggles said. First, high water during the past few years created excellent reproduction conditions for the fall-spawning brown trout. FWP surveys last September showed more than 6,500 brown trout per mile in the 13 miles of the Bighorn River immediately below the Yellowtail Afterbay Dam, Ruggles said. That is the largest number of brown trout measured since 1999 and in the top half dozen years since FWP has kept records. That means that fish have to work harder to compete for a limited amount of food in the water.Second, relatively low flows in the river this fall and winter concentrated the fish in spawning areas, FWP regional fisheries manager Ken Frazer said. Fish do not eat during spawning, which taxes their health anyway. Fish particularly the big males that spend more energy competing for spawning places and fighting with other fish are stressed and can lose part of their body weight. That decreases their ability to ward off fungus spores in the water, he said.Third, the fungus spreads more quickly when fish are packed in close proximity to each other, Frazer said.Finally, fish were subjected to nitrogen supersaturation in the water this past summer, Ruggles said. Gates in the Afterbay Dam designed to prevent the phenomenon were under construction. The resulting gas-bubble disease causes blisters and lesions on the fish, which stresses them and exposes them to fungus.The fungus apparently is attacking larger, older brown trout. Ruggles said. Rainbow trout, which do not spawn until spring, are not affected by the current outbreak.The fungus should run its course in the next few weeks, leaving slightly fewer but much healthier fish in the river, he said.The fungus poses no danger to people. Fishermen also can help by limiting the amount of time they handle fish before releasing them, Ruggles said.While the fungus is present in most Montana waters, anglers and boaters still need to be careful not to inadvertently carry microscopic spores between streams and lakes. FWP recommends that all anglers inspect, clean and dry their boats and equipment every time they leave a lake or stream to prevent the spread of invasive species and diseases

Fungus concerns Bighorn anglers

Anglers fishing the Bighorn the last couple of weeks are reporting a higher than normal incidence of dead and dying brown trout, especially in the stretches below Bighorn FAS. A quick check with our esteemed biologists confirmed that this is a fairly normal spawning occurrence made worse by the spawn and low flows concentrating a heavy population of fish. A similar occurrence happend on the Missouri not long ago, and the following article pretty well sums up the key points: A Pox on That Aquatic Fungusby Bruce AuchlyFWP Region 4 Information Officer The esteem to which some folks hold Montana wildlife never ceases to amaze.A recent outbreak of a fungus that killed dozens of large brown trout in the Missouri River downstream of Holter Dam in north central Montana led to numerous calls and e-mails from concerned anglers.Thats because these were not just any trout. They were mature brown trout, many 18 to 20 inches and larger; 3 and 4 years old and older.And the Missouri from Holter Dam to the town of Cascade is not just any river. It is a world-class, blue-ribbon, trout-fishing destination.How world class? From 1995 to 2001, angling pressure increased from 88,000 angler days to about 136,000 angler days. Thats the same as adding the fishing pressure on Flathead Lake to the Missouri in just seven years.In the years since the pressure has dropped back to about 100,000 angler days, down from the peak but still considerable.So when big brown trout fungus up and die, people are concerned. And rightly so. One pool in a tributary, Sheep Creek, held 15 dead brown trout in various stages of decomposition and covered with the white cottonlike fungus.Brown trout are fall spawners and thats the key to solving this aquatic mystery.Spawning is a stressful activity. Fish stop feeding, living on internal fat while they spawn.Plus older larger males tend to dominate spawning areas, which means pushing out younger sub-dominant males. And mature males produce less slime, which helps protect them. Thats right, fish slime. And its a good thing.Slime on fish comes from mucous secreting cells in their skin. The slime protects them from fungus and various parasites. But during spawning males produce less mucous especially along the back half of their body, which is exactly where the fungus appeared on some live fish.Add it up: Physical scrapes and wounds from spawning and fighting off younger males and less slime to ward off opportunistic parasites. That leaves the larger older males stressed out and ripe for secondary infections, like this years fungus.Still the dangers of spawning happen every year. Biologists see trout with fungus every year. Why did so many brown trout succumb this year?For one, the Missouris brown trout population has a higher proportion of larger older fish, which are always more susceptible to stress and disease.Also, warmer than average water temperatures during spawning may have increased the incidence of the disease. The peak of Missouri River brown trout spawning takes place in October. Examination of the last 10 years of data showed that October 2010 had the highest mean temperature for the entire period. Thats part of the reason this fungus is not seen as often in spring spawning rainbows. Spring water temperatures are warming up, not cooling down.The answer is probably all of the above helped to create the perfect storm. Whatever the reason, people who saw the fish cared enough to call and e-mail. Thats what makes the states outdoor resource so loved, and why people get so emotional about it.

3 to B re-opens after pipeline removed

[via FWP] BILLINGS Phillips 66 Pipeline has reopened a stretch of the Bighorn River after successfully removing a section of abandoned pipe from beneath the riverbed.The company had planned to closed the river to boats this week from Three Mile to the Bighorn fishing access site because it planned to have heavy excavation equipment in the water. The closure was for the safety of floaters and contractors.The contractors were able to remove the pipe with minimal digging Tuesday and have removed floating restrictions.

Part of Bighorn River will close to floaters

[via Montana Fish, Wildlife and Park]BILLINGS A 10-mile stretch of the Bighorn River northeast of Fort Smith will close to floaters from Tuesday Jan 15 through Friday Jan. 18 for replacement of an abandoned Phillips 66 pipeline.Phillips 66 Pipeline is removing a 275-foot-long stretch of the eight-inch Seminoe pipeline where it crosses the river between the Three Mile and Bighorn fishing access sites. The crossing is about a quarter mile downstream from the exit of the Picture Channel.The project requires contractors to put heavy construction equipment in the river channel and possible construction of rock ramps and an 80-foot pad in the river channel to accommodate excavation equipment. The rock pad could temporarily change the river current and velocity in the immediate area of the construction. The closure is for the safety of both construction workers and float fishermen.The closure will not affect walk-in anglers fishing from shore, except in the immediate vicinity of the construction.Phillips 66 Pipeline will post signs at the Afterbay and Three Mile fishing access site and immediately upstream from the construction site to announce the closure. They believe their work, and the river closure, will last no more than four days.Any additional or updated information about the closure and reopening of the river will be posted on the Montana Fish, Wildlife and Parks web site at http://fwp.mt.gov.