A record-breaking heat wave could ease over parts of British Columbia, Yukon, and Northwest Territories by Wednesday but any reprieve for the Prairie provinces is further off. Environment Canada says the “historic” weather system shattered 103 heat records across B.C., Alberta, Yukon, and Northwest Territories on Monday. Those records include a new Canadian all-time high temperature of 47.9 Celsius (118.22 Fahrenheit) set in Lytton, B.C., smashing the previous record of 46.6 Celsius (115.88 Fahrenheit) set in the same village a day earlier. All-time maximum temperature records were also set in the Alberta communities of Jasper, Grande Prairie, and Hendrickson Creek for a second day as the mercury hit the mid-to high-30s. It was 38.1 Celsius in the Nahanni Bute region of Northwest Territories, the highest temperature ever recorded in the territory. The weather office has also issued four heat warnings for regions along Manitoba’s western boundary. Forecasters warn extreme conditions will …