High Streamflow Advisory Issued

The River Forecast Centre is issuing a High Streamflow Advisory for Howe Sound. 

A High Streamflow Advisory means that river levels are rising or expected to rise rapidly, but that no major flooding is expected. Minor flooding in low-lying areas is possible.

A series of storms is expected to impact the British Columbia coast over the next several days. The first system begins today and will continue into Thursday, with following systems passing again later Friday and into the weekend.

Environment and Climate Change Canada has issued a Special Weather Statement for the region, with forecasted rainfall amounts of 40-65 mm are forecast by Thursday morning.

These storms will mark a significant shift in streamflow runoff conditions which have been dominated by drier summer patterns for the past several weeks.

Rivers are expected to rise rapidly in response to rainfall on Wednesday, with peak flows from the first storm expected late-Wednesday or Thursday, with larger rivers expected to reach peak levels later on Thursday or into Friday. Current hydrologic modelling is indicating the potential for streamflow in the 2-year to 5-year flows in some areas which can lead to localized issues and minor flooding.

The public is cautioned to stay clear of rivers during rain events due to quickly flowing water and potentially unstable riverbanks.

Additional storm cycles into the weekend will bring additional periods of high streamflow.  Stay tuned to the River Forecast Centre for conditions and updates.


September 23, 2020

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