10 January, 2014 06:11

An intensiying low pressure system will approach British Columbia today spreading rain to the coast and snow to most of the interior. Sub-tropical moisture will be entrained into the system giving heavy rain to the South Coast tonight with 50 mm of rain expected for Metro Vancouver, the Fraser Valley and Howe Sound. Additional amounts of 20 mm can be expected on Saturday as the system moves inland.

10 to 20 cm of snow can be expected over Whistler, parts of the Columbias and Kootenays, as well as the Chilcotin and Shuswap as the system moves through tonight. 20 to 30 cm of snow can be expected over many Southern Interior highway passes tonight with additional amounts up to 20 cm on Saturday.

Strong southeast winds up to 80-100 km/h can be expected ahead of the system tonight around Vancouver Island and Sunshine Coast as well as the Central Coast. Strong northwest winds with gusts reaching 90 km/h are possible late Saturday in the wake of the system over the South Coast.

The rainfall event is of relatively short duration for a synoptic event (12 hours or so) but still intense. Heavy snowfall will likely disrupt weekend travel along some BC highways. Strong winds tonight and late Saturday may disrupt ferry sailings over the Inner South Coast.

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