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

Squatters campfire leads to emergency response

Prince Rupert fire crews responded to smoke near Roosevelt Elementary School on July 17

CMTN First Nations Fine Arts program offers new advanced diploma

The 10-month program will focus on enhancing jewellery, sculpture and marketing skills

Community garden in Prince Rupert takes shape

Transition Prince Rupert lays foundation for shared edible garden on Overlook

North Coast fishing grounds key to orca recovery: DFO

Plan marks waters from Langara to Rose Spit as critical habitat for northern resident killer whales

Prince Rupert Diamond Diggers win 2018 Queens tournament

The team went 7-0 and scored 12 runs or more on their way to the tournament win

Rushbrook Trail officially open

A ribbon cutting ceremony was held on July 14 to officially unveil the new trail to the public

Newspaper carriers wanted!

Contact The Northern View today to find out how you can become a part of our team

Hub for mental health and addictions treatment opens at B.C. hospital

St. Paul’s Hospital HUB is an acute medical unit that includes 10 patient beds

Restaurant Brands International to review policy over poaching employees

One of Canada’s largest fast-food company to review ‘no-poach’ franchise agreements

Calgary family’s vacation ends in tragedy on Texas highway

Three people died and four others were injured in the crash

Union construction cost competitive, B.C. Building Trades say

Non-union firms can bid on infrastructure, but employees have to join international unions

Trudeau to shuffle cabinet ahead of Liberals’ team for 2019

Trudeau could lighten the work loads of cabinet ministers who currently oversee more than one portfolio

Car calls 911 on possible impaired B.C. driver

A luxury car automatically calls Princeton police to scene of crash involving alcohol

BC Games marks 40 years in 2018

Cowichan Games a milestone for BC Games Society

Most Read