Ontario | Hamilton, Ontario | 1979 | University of Western Ontario | Progressive Conservative Party of Ontario | Kingston, Ontario | London, Ontario | Ontario Liberal Party | Woodstock | Windsor, Ontario | Lake Ontario | 1979 in music | Ontario general election, 1995 | Scarborough, Ontario | Legislative Assembly of Ontario | Kitchener, Ontario | Premier of Ontario | Belleville, Ontario | Oakville, Ontario | Waterloo, Ontario | Member of Provincial Parliament (Ontario) | Northern Ontario | Burlington, Ontario | Ontario New Democratic Party | Royal Ontario Museum | Sault Ste. Marie, Ontario | Ontario general election, 2003 | Big East Conference (1979–2013) | Woodstock, New York | North Bay, Ontario |
A relatively cool and dry airmass was being pushed in from the north by means of a cold front, into warm and unstable air from the southern United States.