May 22, 2013

Despite all the rain, runoff in Missouri River basin still low

Gavins Point Dam

Gavins Point Dam

The U.S. Army Corps of Engineers is operating the Missouri River reservoir system in drought conservation mode and doesn’t expect much to change for at least a few months.

Corps engineer Kevin Stom says despite the plentiful rainfall this spring, runoff in the region continues to be low.

“Although precipitation in April was well above normal in much of the upper Missouri River basin, observed April runoff was 78% of normal,” Stom says. “This is due to the large soil moisture deficits in the upper basin from the 2012 drought.”

Jody Farhat, head of the water control division for the Omaha Corps office, says water-saving efforts are underway.

“We’re implementing measures to conserve water in the main stem reservoir system this year, including reduced service to navigation,” Farhat says. “Flow support for the second half of the navigation season and the season length will be determined by the volume of water in the reservoir system on July first.”

Farhat says the Corps may have to take further steps if the dry conditions persist.

Farhat says, “Other potential conservation measures that may be implemented this summer include not supporting navigation targets in the regions without commercial navigation, use of the Kansas basin reservoirs for navigation support and cycling Gavins Point releases during endangered species nesting season.”

The Corps reports the runoff forecast in the region north of Sioux City is well below where it should be. It’s gauged at 20-million acre feet, which is 79% of normal.

By Jerry Oster, WNAX, Yankton

 

UNL water summit looks at droughts past and future

A water conference at the University of Nebraska-Lincoln is focusing on the impacts of last year’s drought, how it compares to past droughts and what to do going forward to minimize the impact on agriculture and water.

UNL Vice Chancellor Dr. Ronnie Green says the use of technology and practices has helped producers weather the drought and in some cases, thrive.

“Irrigators are using much more sophisticated irrigation techniques than we used a decade ago, than we used 15 years ago,” Green says. “Use of soil moisture monitoring and recording to better anticipate actual water needs.”

Green says researchers and producers need to adapt to a changing climate.

“We’re going to have to continue to build and improve our technologies and best use of those technologies in the field in order to be able to meet the targets that are out there ahead with what could be more variability in the climate,” Green says.

Green says by targeting water usage and employing the best management practices, farmers are able to get the most use of their inputs while conserving water and being able to get good yields.

The three-day event wraps up today. It’s being co-sponsored by the Bill and Melinda Gates Foundation along with the University of Nebraska Lincoln’s Water for Food Institute.

By Jerry Oster, WNAX, Yankton

Most fruit crops emerge from last week’s snowfall intact

Last week’s rare May snowstorm was a close call for many fruit growers across the Husker State.

Eric Olson, a manager at the Kimmel Orchard and Vineyard in Nebraska City, says the lowest temperature they recorded was 32-degrees, which had little impact.

Olson says a few degrees colder and the orchard could have been in serious trouble.

“At those stages, if it gets down to 28 degrees, you lose about 10% of your crop but if it drops down to 25 degrees, you would lose 90% of your crop.”

Olson says he was the most concerned about the peach trees, which are almost all in full bloom.

The orchard grows apples, cherries, pears, peaches, plums, grapes and a few other crops.

By Nate Gonner, KNCY, Nebraska City

Even with all the precip, some well levels are lower than last fall

All of the recent rain and snow is a big help in overcoming moisture deficits from last year’s devastating drought, but there are many indications the drought is lingering.

Tom Moser, general manager of the Lewis and Clark Natural Resource District, says he’s been monitoring wells across northeast Nebraska for several weeks.

“The measurements I’ve taken so far show that there has been some recharge, but not significant,” Moser says. “In some cases, I was really surprised that the water table was actually lower this spring than it was last fall on at least four or five wells.”

Moser encourages all irrigators in the region to track how much water they’re pumping.

“We want to make sure that the people who do irrigate keep close tabs on how many gallons they use,” Moser says. “We’d like to have them have flow meters so that they know accurately how much water they’re using.”

Moser says they will be putting in additional monitoring wells to watch water use as the warmer months of summer approach.

By Jerry Oster, WNAX, Yankton

 

 

May 1st weather a mixed bag of winter

There are winter weather advisories in western Nebraska and yes, the calendar says May 1. Barbara Mayes is a meteorologist with the National Weather Service in Valley and she says this is a very unusual and strong storm system targeting the state.

Mayes says up to six inches of snow is already on the ground in extreme northeast Nebraska and more is expected. There are wind and winter weather advisories in effect for Red Willow, Hitchcock, and Dundy Counties this afternoon. Those in eastern Nebraska in the Omaha metro area will see snow but little accumulation is expected.

Mayes says Nebraska weather records go back to 1884 and since then only four years recorded measurable snow during the month of May. The last time was May 3rd of 1967 when an inch of snow was reported in Omaha. The latest in the season for snowfall in Nebraska was recorded on May 9th 1945.