The second snowstorm of the week in Metro Vancouver took longer than expected to hit on Friday but is now starting to impact services in the region.

Southbound lanes on the Alex Fraser Bridge were heavily delayed for several hours because of an accident, while the Expo and Millennium Line routes were running on reduced service because of the weather.

Further north, Simon Fraser University and Capilano University have cancelled their classes and exams for the rest of the day, and Capilano has also preemptively closed its campus for Saturday.

"As this weekend's weather remains unpredictable, students and employees should consult capilanou.ca before travelling to the campus on Sunday."

TransLink has suspended bus routes to SFU, and there have been changes made to the 20, 151, 152, 169 and 210 routes, with multiple reports of Commercial Drive being very slippery between Broadway and Venables.

"The afternoon snow is impacting bus service across the region, causing many delays," said TransLink in a statement.

Late Friday evening, the Vancouver Police Department closed Boundary Road southbound at Rumble Street, and asked drivers to avoid Knight Street southbound at 33rd Avenue, and Cambie Street southbound because the roads were slippery.

Snow falls in the Granville Island marina in Vancouver on Dec. 9, 2016. (Christer Waara/CBC)

7 to 15 cm in many areas

Snow failed to accumulate in the early hours of Friday across the region, promoting some online mockery — but picked up in earnest later in the morning.

Travel safe out there! Follow our Twitter list of traffic reporters for up-to-date road conditions: <a href="https://t.co/xoHjKuxCuc">https://t.co/xoHjKuxCuc</a> <a href="https://twitter.com/hashtag/bcstorm?src=hash">#bcstorm</a> <a href="https://t.co/CGLx46G1F8">pic.twitter.com/CGLx46G1F8</a> —@CityofVancouver

While snow has tapered off for the moment, a second wave is expected to his the South Coast later this evening.

"Rapidly accumulating snow could make travel difficult over some locations," warned Environment Canada in a statement issued at 4 p.m. PT.

"Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate, due to accumulating snow. Take frequent breaks and avoid strain when clearing snow."