Saturday, August 22, saw a substantial amount of rainfall in the Greater Sudbury area and other parts of northeastern Ontario, with some regions experiencing over 80 millimetres of rain. Rob Kuhn, a severe weather forecaster from Environment and Climate Change Canada, described it as a very wet weekend.
Sudbury Airport received 87.3 millimetres of rain, and a volunteer weather station, CoCoRaHS, recorded 78 millimetres by 2 a.m. on Monday. The heavy rainfall was part of a larger weather system that brought varying precipitation levels across northeastern Ontario. Timmins received 80.5 millimetres, while Kirkland Lake reported 30.8 millimetres.
Kuhn explained that the weather system, known as a “cold low,” led to unsettled weather and significant precipitation. Although these systems are more typical in fall and winter, they can occasionally occur during summer.
A rainfall warning remains in effect for the Kirkland Lake area, and Kuhn stated that it will persist and extend into Timmins. He mentioned that the rain will continue intermittently into the afternoon before decreasing to isolated showers later in the day, with additional rainfall expected to be between 10 to 15mm.
Despite the weekend feeling like fall, residents are advised not to pack away their summer attire just yet. Kuhn forecasted some morning clouds on Tuesday, followed by sunny conditions. Tuesday’s weather is expected to be warmer and drier, with temperatures reaching the mid-20s.