Northern Ontario: Thunderstorm Outlook for Monday, August 9, 2021

Forecast Discussion

Widespread thunderstorm activity is expected to move through Northeastern Ontario during the late afternoon into the evening on Monday. These storms could be quite strong bringing strong wind gusts, moderate size hail and heavy rainfall. Although they should remain non-severe in most cases so we haven’t included an isolated severe risk zone on our map. An organized line of storms will also track into Northwestern Ontario from Manitoba late Monday and continuing overnight. It’s possible this line could pack some powerful wind gusts near 90km/h, but the timing of this event should mean most of the severe risk will stay over Manitoba.