Seasonal water runoff above average in Columbia Basin

Currently, levels in the West Kootenay’s three reservoirs — Arrow Lakes, Duncan and Kootenay Lake — are either decreasing or have no change.


Overall seasonal water runoff volume for the basin that feeds the Columbia River was nearly one-third greater than its seasonal average in the first half of 2011, according to figures recently released by BC Hydro.

As of late December, the total runoff — Canada and U.S. combined — came in at 133 per cent of average (January to July, 2011), with runoff conditions for the Columbia/Kootenay basin within Canada at about 115 per cent above average.

The mammoth snow falls recorded in the latter parts of 2010 and the first few months of 2011 played a significant role in the runoff recorded.

“Runoff conditions this year were well above normal due to high snow pack levels, primarily in the lower portion of the basin,” read a BC Hydro report.

Currently, levels in the West Kootenay’s three reservoirs — Arrow Lakes, Duncan and Kootenay Lake — are either decreasing or have no change.

The Arrow Lakes reservoir is about 434.4 metres (1,425 feet) measured at the Fauquier gauge. The reservoir dropped .5 m. (1.6 ft.) over the past week. It is expected to drop across December and January to reach between 428.2 to 431.3 (1,405 to 1,415 ft.) by the end of January.

Kootenay Lake is holding steady at 531.7 m. (1,744.4 ft.), while Duncan Reservoir dropped .61 m. (two ft.) over the last week to 568.7 m. (1,865.7 ft.). Duncan is expected to drop by 7.2 m. to 559.3 m. (1,835 ft.) by the end of January.

The Arrow weekly average discharge was 56 thousand cubic feet per second (kcfs), Brilliant was 26 kcfs while Duncan Dam was eight kcfs.

The actual elevation of reservoirs is influenced by snow pack, inflow levels, weather patterns and other factors such as load requirements.

The official water supply forecast for 2012 will be issued later this month.

Timothy Schafer – Trail Daily Times

Just Posted

Judgment reserved in Nakusp school sex trial

Trial concluded today with lawyer’s summations

Former teacher acquitted on two of four sex charges

Judge found no evidence to support sexual assault charges against Shanny McIvor

New Denver emergency ward to remain 24/7

Interior Health says it’s postponing changes to operating hours.

New Glade ferry enters testing phase

The Glade II will be able to carry heavier loads and will emit less greenhouse gases.

Smiles all around as province announces emergency ward funding

$2.1 million to go to much-needed upgrades

B.C. cougar kitten rescued after mother struck by vehicle

Conservation Officers find home for young kitten found dehydrated and frostbitten near Williams Lake

VIDEO: Thousands join women’s march events across B.C.

Today marks one year since the first Women’s March on Washington

Two Canadians, two Americans abducted in Nigeria are freed

Kidnapping for ransom is common in Nigeria, especially on the Kaduna to Abuja highway

Are you ready for some wrestling? WWE’s ‘Raw’ marks 25 years

WWE flagship show is set to mark its 25th anniversary on Monday

B.C. woman who forged husband’s will gets house arrest

Princeton Judge says Odelle Simmons did not benefit from her crime

Women’s movement has come a long way since march on Washington: Activists

Vancouver one of several cities hosting event on anniversary of historic Women’s March on Washington

Liberals’ 2-year infrastructure plan set to take 5: documents

Government says 793 projects totalling $1.8 billion in federal funds have been granted extensions

Workers shouldn’t be used as ‘pawns’ in minimum wage fight: Wynne

Comments from Kathleen Wynne after demonstrators rallied outside Tim Hortons locations across Canada

John ‘Chick’ Webster, believed to be oldest living former NHL player, dies

Webster died Thursday at his home in Mattawa, Ont., where he had resided since 1969

Most Read