B.C. flood watch to intensify over next week

Heat wave speeding up snowmelt process

A unusually warm spring heat wave is raising flood warning concerns across the Okanagan and Shuswap regions over the next week, according to the B.C. River Forecast Centre.

Dave Campbell, head of the forecast centre, says the snow melting has been accelerated by temperatures trending six to eight degrees above the normal average, mixed with the potential for the heat to be briefly interrupted by rain later this week.

Related: Temperature soar to record-breaking heights in Kelowan, Vernon

“The weather will be critical over the few weeks,” Campbell explained. “There is a strong high pressure surge right now will a small potential disturbance that will generate rain leading into the long weekend, but that high pressure system is expected to rebuild and be more prolonged leading into next week.”

Campbell said in the South Okanagan, the rising Similkameen River is causing flooding headache, with a new peak level expected to be reached within the next three to five days.

He said flow projections of 800 cubic metres a second are anticipated for the peak freshet period, having already reached 600.

Related: Provincial aid for flood victims

“How high it goes will depend on a couple of pieces. One is how much snow at the higher elevation melts as from the snow perspective at some point that process will run out of gas, and what uncertainty the weather might bring through this week, as getting more rain will bump things up again,” he said.

Campbell said the Central and North Okanagan regions haven’t dodged a flood bullet yet, noting the mid-snow levels, 1,500 to 2,000 feet, are about two-thirds melted while the higher elevations above that are about 10 to 20 per cent melted.

“I think it would be premature to talk about dodging a bullet. Uncertainty over all rivers in the region right now makes them extremely vulnerable to flooding at this stage. The Mission Creek system and some around Vernon are very much in a transition period so we’ll find out more about the risk factor as that high elevation snow starts to melt at a higher rate,” he said.

Campbell added the Salmon River in the Shuswap, like the Similkameen, is another river that has already seen some peaks and valleys in its freshet enhanced flows.

“I think (the Salmon River) is one of those rivers where we have seen it peak, have seen it come down a bit, and now we are seeing it rise again. With a further warming trend the next four to seven days will be critical. If we get through that, then we should start to see improving conditions.”

To report a typo, email: edit@kelownacapnews.com.


@BarryGerding
barry.gerding@blackpress.ca

Like us on Facebook and follow us on Twitter.

Just Posted

Cathy McLeod ready to run in Election 2019

“I have the passion, energy and support from my family to continue working hard for our region.”

Shuswap plane missing since 1987 discovered near Clearwater

A family finally has closure after a plane missing since 1987 was discovered in the Clearwater B.C.

Barriere’s mayor is not seeking re-election

Virginia Smith is preparing to retire from politics

Barriere Fire Department to hold open house for Fire Prevention Week

‘It’s open to everyone, it’s free to attend and, yeah, we always like to meet everyone there’

October is Drive Relative to Conditions month

Police will be out in force stopping drivers and checking vehicles

Secret supper clubs test appetite for cannabis-infused food ahead of legalization

Chefs are eagerly awaiting pot edibles to become legal in Canada

Enbridge to begin building road to access pipeline explosion site in B.C.

An explosion Tuesday knocked out a 91-centimetre line

Andrew Scheer on revamped NAFTA deal: ‘I would have signed a better one’

Conservative leader says he wouldn’t have signed USMCA

Matheson will have NHL hearing after Canucks rookie Pettersson hit

The 19-year-old Swedish centre appeared woozy after the hit

GUEST COLUMN: A better way to manage B.C.’s public construction

Claire Trevena responds to Andrew Wilkinson on NDP union policy

B.C. brewery creates bread beer from food waste

The brew aims to raise food waste awareness and provide funds for the food bank

Dad files Charter challenge after B.C. bans kids from taking transit unsupervised

Adrian Crook is taking his fight to B.C. Supreme Court

B.C. VIEWS: Cast your municipal vote for sanity on homelessness

Thousands on waiting list while anti-capitalist bullies get priority

Police investigate alleged arson at Toronto hotel housing asylum seekers

Police believe the fire was started intentionally, but they have not spelled out a possible motive

Most Read