The slow-moving weather system of September 2026 left a lasting mark on Cape Breton, severely impacting Richmond County with intense rainfall beginning Friday and Friday night. Rainfall rates reached devastating levels of 20 to 30 millimetres per hour on Friday night, overwhelming local infrastructure. A weather station in Sampsonville measured 150 millimetres in a six-hour span between midnight and 6 a.m. AT Saturday, while Eskasoni saw 71 millimetres in just three hours. As moisture wrapped in from the east and northeast on Saturday, heavy rain continued across Victoria and Cape Breton counties, as well as metro Sydney. With extra rain falling Sunday night into Monday, localized totals surpassed 250 to 300 millimetres in parts of Victoria County. Although forecast models accurately predicted general widespread totals of 80 to 150 millimetres, they could not foresee the extreme 20 to 30 millimetres per hour downpours in the Bras d’Or Lake area due to atmospheric complexities. This severe event joins a growing list of intense storms hitting Cape Breton and the province over the past decade, highlighting a noticeable trend toward more frequent and severe weather.
Source: cbc.ca
