Eastbound lanes along the Trans-Canada Highway are blocked east of Portage la Prairie near the intersection of Highway 13, said Manitoba RCMP.
A semi-trailer jackknifed, blocking the roadway late Friday afternoon, police said.
Icy roads and near-whiteout conditions have caused traffic delays all afternoon west of Winnipeg. Visibility is especially poor between Elie and Portage la Prairie, said Derek Trainer, spokesperson for Manitoba Infrastructure.
Ten cars had to be removed from ditches earlier on Friday near the same intersection just east of Portage la Prairie.
No injuries were reported in the incident, police said.
While visibility remains poor near Portage la Prairie, lines of sight vastly improve closer to Winnipeg although roads remain slippery, RCMP say.
"In and around Winnipeg, more so west and north of the city, we're seeing roads that are, as we have reported, ice-covered or partly ice-covered," Trainer said.
Police have closed Highway 2 due to icy conditions and RCMP say they are considering closing the eastbound lanes of the Trans-Canada for the entire stretch between Headingley and Portage la Prairie.
CBC meteorologist John Sauder says winds and flurries are expected to die down Friday evening while temperatures are expected to drop to between –12 and –15 C.
Roads could become more slippery as the plunging temperatures freeze up any moisture left on the roads.
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