Conditions are favourable for the development of fog overnight. Sudden reductions to visibility will be possible with near zero visibility in dense fog patches. The fog is expected to dissipate Friday morning.
Visibility may be significantly and suddenly reduced to near zero. If travelling, be prepared for areas of near zero visibility.
Weather Advisories for fog are issued when near zero visibilities in fog are expected or occurring.
Angus Apsley Balsam Lake Park Bancroft Bannockburn Barrie Baysville Beaverton Belleville Blue Mountains Bon Echo Park Bracebridge Bruce Peninsula Caledon Cobourg Colborne Coldwater Collingwood Consecon Denbigh Dundalk Eastern Northumberland County Fenelon Falls Fort Irwin Frontenac Islands Georgina Grand Valley Gravenhurst Haliburton Hanover Hastings Highlands Hillsdale Huntsville Innisfil Kaladar Killbear Park Kincardine Kingston Lagoon City Lakefield Lindsay Madoc Mansfield Markham Midland Minden Napanee New Tecumseth Newmarket Northern Dufferin County Northern Durham Region Northern Grey County Northern Haliburton County Northern Kawartha Lakes Northern Peterborough County Northern York Region Odessa Orangeville Orillia Orr Lake Oshawa Owen Sound Oxtongue Lake Peterborough City Pickering Picton Port Carling Port Severn Quinte West Richmond Hill Rosseau Sandbanks Park Sauble Beach Saugeen Shores Shelburne South Frontenac Southern Bruce County Southern Dufferin County Southern Durham Region Southern Grey County Southern Haliburton County Southern Kawartha Lakes Southern Peterborough County Stirling Sydenham Tamworth Tobermory Town of Parry Sound Tweed Uxbridge Vaughan Washago Western Northumberland County Woodview
Chatham-Kent Essex County Leamington Rondeau Park Windsor
Heavy showers late this evening.
A northwest to southeast line of showers with a few embedded thunderstorms has developed and extends from near Belle River to Wheatley Provincial Park. Rain could be heavy at times as thunderstorms develop and train along this line.
The public is advised to monitor future forecasts and warnings as warnings may be required or extended.