The short version

A November 7 rainfall warning calls for up to 50 millimetres between Boston Bar and Lytton, with the heaviest rain expected overnight.

Fresh warning issued Saturday afternoon

Environment and Climate Change Canada issued a November 7 rainfall warning for the Fraser Canyon corridor between Boston Bar and Lytton, with heavy precipitation expected to continue overnight into Sunday. Fraser Valley Today reported that forecasters expect up to 50 millimetres of rain in the affected corridor, driven by a potent low-pressure system. Rainfall rates could reach approximately five to seven millimetres per hour during the heaviest periods. These are forecasts and can change as the system moves.

Roads and low-lying areas are concerns

Periods of intense rainfall can lead to localized ponding, slippery roads, debris and quickly changing conditions near steep slopes and waterways. Other parts of coastal British Columbia have reported heavy rain, outages and evacuation-related concerns during this series of storms. The Fraser Canyon warning is a localized weather alert, not a statement that every nearby community has flooded. Drivers should consult provincial highway alerts and official weather updates before travelling.

Follow official alerts, not old forecasts

Warnings can be expanded, downgraded or cancelled on short notice. The forecast cited here was current at the time of the November 7 news report; it should not substitute for a live alert check during a journey or emergency. CDN News will keep forecast times attached to claims and will not describe projected accumulation as a measured total after the fact.

Follow the evidence

Sources & transparency

Fraser Valley Today — Rainfall and wind warnings for Fraser Canyon, November 7, 2026Environment and Climate Change Canada — official weather alerts

Original CDN News coverage. Sources are linked for reference.

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