(The Canadian Press)

River centre says heavy rains could bring flooding to central, northeastern B.C.

Water levels are already unusually high and river banks can be extremely unstable

Officials are urging people in parts of British Columbia’s interior to be careful around rivers as Environment Canada forecasts heavy rainfall in central and northeastern parts of the province starting Wednesday.

Water levels are already unusually high and river banks can be extremely unstable, said Dave Campbell, head of the B.C. River Forecast Centre.

Trees and other debris in the water also pose invisible hazards, he noted during a briefing Tuesday.

“The bull’s eye of this rainfall event is largely almost north of Kamloops up through Clearwater, Blue River, Valemount (and) Robson Valley,” said Campbell.

It looks like the Southern Interior will mostly be spared, he said.

While it’s not certain exactly how much rain would fall and where, Environment Canada forecasts it could range from 20 to 40 millimetres through Thursday and beyond.

Current modelling indicates water in the upper Fraser and Thompson rivers could reach levels last seen in 1972, said Campbell.

“Certainly the presence of that scenario and risk of that scenario is really what’s prompting a lot of this early warning,” he said, adding heavy flows could reach the lower Fraser over the weekend.

The centre has posted flood warnings for the upper and middle Fraser River basins, including the Quesnel River, while lower-level flood watches are in place for the Chilcotin and Thompson rivers.

“We do have Kamloops under that flood watch. If the rainfall that is in the forecast right now materializes, I would expect that we would be pushing that up to a flood warning,” said Campbell.

That area could see water levels rise rapidly by one or two metres above current levels, he said.

It’s possible local jurisdictions may issue evacuation alerts and orders, said Stan Bates, executive director of operations for Emergency Management BC.

BC Wildfire crews are on standby to help with flood control efforts if necessary, he said.

The Canadian Press

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