We’re on track for a couple of unsettled days across British Columbia as a new system promises a spell of steady rain for lower elevations, wet snow above 500 metres, and gusty winds. Slick roads could hamper travel through the highway passes, while gusty winds could delay ferry service for Monday morning’s commute. More on what to expect in the days ahead, below.
MONDAY AND TUESDAY: WET SYSTEM ROLLS INTO THE WEST COAST
A large upper-level trough will arrive in British Columbia through Monday morning. The system’s foul weather will reach Vancouver Island in the pre-dawn hours before advancing on the Lower Mainland into the day on Monday. Precipitation will pick up in intensity as the day progresses.
The greatest rainfall totals will fall over the usual areas, with 30-50 mm expected on western Vancouver Island through Tuesday. We can expect amounts of 15-40 mm across the Lower Mainland.
Gusty winds on Monday morning could hamper your morning commute if you rely on ferry service in the Strait of Georgia, where wind gusts of 50-70 km/h are expected through the morning hours. Winds will gradually calm down through the day.
Daytime highs will top to the cooler side of seasonal to begin the week with the inbound system. Monday’s predicted high of 8°C in Vancouver is well below the city’s seasonal high of about 13°C for this point in April.
Cooler temperatures spreading across the West Coast will force freezing levels to drop below 1,000 metres, allowing precipitation to fall as snow for areas above 500 metres.
While the late-season snow is good news for ski areas that are still open, the threat for snow will make travel difficult across the highway passes. This especially holds true along the Sea to Sky, where we expect to see the greatest potential for travel disruptions.
The system should begin to clear away from the South Coast by Tuesday morning, allowing conditions to briefly settle back down. However, we’re looking at several more opportunities for unsettled weather heading into next weekend. Temperatures should remain on the cooler side of seasonal for the remainder of the week.
Check back for the latest details on conditions across British Columbia.