BC NewsSouthern Interior drought deepens as extreme, exceptional conditions expand1-in-50 year droughtPhoto: Ag Canada Agriculture and Agri-Food Canada’s Drought Monitor report indicates the Southern Interior and southeastern B.C. New daily temperature records were also set at several locations throughout the Southern Interior. ’s Southern Interior, with parts of the region now experiencing extreme or exceptional drought, according to a report from Agriculture and Agri-Food Canada. New daily temperature records were also set at several locations throughout the Southern Interior. “Exceptional drought conditions are based on statistically one-in-50-year climate conditions,” Hadwin said.