A rainfall warning from Environment Canada forecasts heavy rain and strong, gusty winds Monday night into Tuesday for several regions across Southern B.C.
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Environment Canada has issued a rainfall warning as a “robust” frontal system over the North Coast gradually moves over the Lower Mainland on Monday night, bringing heavy rain.
The warning calls for rainfall amounts of 50 to 70 millimetres, with strong and gusty southeasterly winds expected during the period.
The Central Coast could see higher totals, with Environment Canada forecasting up to 100 millimetres of rain.
The rainfall warning is in effect for the Central Coast, Fraser Valley, Howe Sound, Metro Vancouver, the North Coast, and West Vancouver Island.
Environment Canada says the heavy rain is expected to ease on Tuesday afternoon, though the advisory includes guidance for drivers to watch for water pooling on roads and in low-lying areas.
Because the affected regions include Metro Vancouver and West Vancouver Island as well as surrounding coastal and valley communities, impacts are likely to be most noticeable on local drainage systems and roadways that can collect standing water quickly during intense rainfall.
The warning’s combination of high rainfall totals and gusty southeasterly winds also raises the risk of rapidly changing conditions for travel and outdoor work, particularly during the overnight hours when the system moves inland.
Residents across the warning area can use the forecast timing—heavier rain Monday night into Tuesday, with easing Tuesday afternoon—to plan commutes and any travel through coastal and low-lying road sections accordingly.
Given the potential for water pooling, drivers are advised to take care in areas prone to flooding and to adjust routes or departure times where possible during the period of heaviest precipitation.
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