Environment Canada has issued a severe thunderstorm watch for Pembroke and the surrounding areas this afternoon, May 19, 2026. Residents should prepare for potential wind gusts, large hail, and the possibility of a tornado as conditions change throughout the evening.
Current observations at Garrison Petawawa show warm, humid conditions with temperatures reaching 26.2°C. The forecast calls for a high of 27°C with a humidex of 35, significantly warmer than the typical late-May high of 21°C.
The severe thunderstorm watch, which also covers Petawawa and Cobden, warns that storms could produce wind gusts between 90 and 110 km/h and hail up to the size of ping pong balls. Instant Weather has included Pembroke in a marginal risk area, noting that isolated damaging wind gusts are the most likely threat from weakening storms later tonight.
According to Emergency Management Ontario, residents should take cover immediately if threatening weather approaches. Potential impacts include local power outages and damage to property such as roofs, fences, and trees. Showers and the risk of thunderstorms are expected to continue until near midnight, when conditions are anticipated to clear as temperatures drop to an overnight low of 11°C.
This weather pattern comes as Ontario enters the most active time of year for severe storms. With the 2026 severe weather season already underway following confirmed storm activity earlier this month, officials remind community members to stay informed and keep a safety plan ready.
