Active AlertsBamfield, BC

Prolonged Atmospheric River Event

Where: West Vancouver Island.

What and when:
- Total rainfall amounts near 150 to 250 mm with locally higher amounts reaching 300 mm from Sunday to Wednesday morning.
- Periods of heavy rain continue Wednesday afternoon to Friday

Impacts:
- Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and the potential for flooding.
- Extensive water pooling on roads and washouts possible.
- Enhanced risk of landslides due to saturation of the ground.

Remark:
An atmospheric river will remain over the South Coast of B.C. through Friday. With freezing levels near 2000 to 3000 metres, snowmelt from higher elevations may increase the impacts associated with this rainfall event.

Rain will intensify this evening and briefly eases Wednesday morning. Periods of moderate to heavy rain will continue Wednesday afternoon to Friday under the influence of of the atmospheric river. The heaviest rainfall is expected Thursday night into Friday morning.

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Localized flooding is likely. Some roads may become impassable. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure.

Rainfall warnings are issued when significant impacts are expected due to rainfall amounts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

Stay away from rivers, creeks and culverts.