A low-pressure system passing south of Nova Scotia is bringing heavy snow to the province and has prompted snowfall warnings for counties in the southeastern parts of the province. 

Snow is making a mess of roads and causing flight delays and a few flight cancellations.

A number of crashes are slowing an already messy commute. RCMP are urging motorists to use caution, especially on the 100 series highways.

On Wednesday afternoon, two tractor-trailers collided on Highway 102 near exit 5A to Fall River causing traffic to get backed up. A number of crashes on the outbound Highway 118 slowed traffic on that major artery. 

The weather conditions are so bad that the Bridgewater Police Service pulled all but its four-wheel drive SUVs off the roads. Halifax Metro Transit buses are running on a snow plan, with routes altered to avoid hills and other problem areas. 

Environment Canada said the following counties are under a snowfall warning with an additional 15 centimetres expected:

  • Guysborough County.
  • Richmond County.
  • Sydney Metro and Cape Breton County.

Snowfall warnings in Halifax, Halifax County West and Halifax County east of Porters Lake have been lifted though flurries and blowing snow continue. 

Some school cancellations

Several school boards in Nova Scotia cancelled classes Wednesday as snow moves through the Maritimes and on to Newfoundland and Labrador.

So far schools in these areas are closed:

  • Cape Breton Victoria Regional School Board.
  • Annapolis Valley Regional School Board. 
  • Strait Regional School Board​.
  • Tri-County Regional School Board.
  • South Shore Regional School Board.
  • Conseil Scolaire Acadien Provincial in Clare, Argyle, Metro, Truro and Greenwood.
  • Ecole de la Riv Sud.
  • Nova Scotia Community College —​ Truro, Pictou and Marconi campuses

​The Chignecto Central School Board is cancelling classes in Pictou, Colchestor and Hants East.  

Schools in Cumberland County remain open.

The Halifax Regional School Board is open, but buses are cancelled and high school exams scheduled for today will be written Thursday.

Thursday is expected to be mainly sunny in the Maritimes.

Environment Canada has issued a snowfall warning for parts Newfoundland and Labrador. Heavy snow is expected to start falling around noon. About 15 to 30 centimetres is predicted for St. John's.