The B.C. River Forecast Centre is maintaining a High Streamflow Advisory for the East Kootenay, West Kootenay, including tributaries into Arrow Lakes, Slocan Lake and Kootenay Lake and the Boundary Region, including Grand Forks.

The River Forecast Centre has also issued a High Streamflow Advisory for: Okanagan, mainly smaller and lower elevation creeks; Similkameen, mainly smaller and lower elevation creeks.

A frontal system impacted the South Interior April 10, bringing basin-wide, prolonged rainfall until Tuesday morning (April 11).

Rainfall amounts are forecast to reach 30 to 50 mm across the regions. Freezing levels are expected to rise between 2,000 to 2,500 metres.

“Seasonal to below seasonal temperatures and dry conditions have persisted through late winter and early spring,” the River Forecast Centre reported.

“River flows in the South Interior are currently below normal as the freshet snowmelt season has yet to significantly begin. The upcoming moderate to heavy rainfall is expected to cause flashy rises in creeks and rivers in the region. Smaller, low elevation creeks with remaining snowpack are most at risk. These rain-on-snow events have a high amount of uncertainty based on rainfall totals, ripeness of the snowpack to melt and the fluctuation of the freezing level.”

Conditions are expected to be dynamic throughout the weekend with periods of rapid river rises. Fast-flowing rivers pose increased risk to life safety.

The River Forecast Centre continues to monitor the conditions and will provide updates as conditions warrant.

e-KNOW

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