Od: 17.03.2026, 18:21
Do: 18.03.2026, 10:30

Prolonged Atmospheric River Event

Where: - Metro Vancouver-North Shore including West Vancouver and North Vancouver - Metro Vancouver-northeast including Coquiltam and Maple Ridge - Howe Sound

What and when: - Total rainfall amounts from Sunday to Wednesday morning: 90 to 120 mm - 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 potential for flooding. -Extensive water pooling on roads and washouts may occur. -Enhanced risk of landslides due to saturation of landscapes.

Remarks: An atmospheric river will remain over the South Coast of B.C. through Friday. With freezing levels near 2000 to 2500 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.

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Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

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 [email protected] or post reports on X using #BCStorm.