Flood Warnings and Advisories
High Streamflow Advisory – Boundary, West Kootenay, East Kootenay (Maintained), Okanagan (New), Similkameen (New)
UPDATED: 12:15 PM April 10, 2023
The River Forecast Centre is issuing a High Streamflow Advisory for:
- Okanagan, mainly smaller and lower elevation creeks
- Similkameen, mainly smaller and lower elevation creeks
The River Forecast Centre is maintaining a High Streamflow Advisory for:
- Boundary Region, including Grand Forks
- West Kootenay, including tributaries into Arrow Lakes, Slocan Lake and Kootenay Lake
- East Kootenay, including the Elk Valley near Fernie
A frontal system is impacting the South Interior and is expected to stall over the Kootenay region today (April 10) and bring 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. Lower precipitation amounts are forecast for the Okanagan and Similkameen basins, but given their geographic location, they may be impacted by the upcoming storm.
Seasonal to below seasonal temperatures and dry conditions have persisted through late winter and early spring. 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.
For information on how to prepare for flood hazards, visit PreparedBC .
BC River Forecast Centre
Ministry of Forests
Contact for Media Relations, Ministry of Forests:
Levels of Warnings/Advisories: