Hot, Humid Air Fuels Ongoing Thunderstorm Threat in Southern Ontario Southern Ontario residents remain under a heightened risk of thunderstorms as a relentless stream of hot and humid air continues to stream into the region. According to meteorologists, a warm front stalled over the area on Thursday and is expected to remain in place for several more days. This front is acting as a boundary between the cool, moist air from the north and the warm, humid air from the south. The warm, moist air flowing in from the Gulf of Mexico is providing ample fuel for thunderstorms to develop. These storms can produce heavy rainfall, hail, strong winds, and frequent lightning. The thunderstorms are expected to be most frequent in the afternoon and evening hours when temperatures are at their peak. The risk of severe weather, including hail and high winds, will be greatest in areas where the storms are most intense. Residents are advised to stay informed about the weather forecast and be prepared to take shelter if thunderstorms approach. The following tips can help keep you safe during a thunderstorm: * Go indoors immediately and stay away from windows. * Unplug electronic devices and appliances. * If you are outside, seek shelter in a sturdy building or vehicle. * Avoid contact with metal objects, including fences and power lines. * If you are caught in a flash flood, do not attempt to drive through it. Turn around and find another route. The hot and humid conditions are also contributing to the development of smog in the region. Air quality advisories may be issued in the coming days as ozone levels increase. Individuals with respiratory conditions should be aware of the potential for air pollution and take appropriate precautions.Severe Thunderstorm Risk in Southern Ontario through the WeekendSevere Thunderstorm Risk in Southern Ontario through the Weekend High temperatures and humidity have been fueling thunderstorms in the Great Lakes region, and the risk will continue into Thursday and the weekend across southern Ontario. Potential for Severe Storms The atmosphere will remain unstable on Thursday, with additional thunderstorm activity possible. Organized storms inland could develop into the afternoon, favored by pockets of uneven heating and convergence. Some storms may become severe, bringing torrential rainfall and gusty winds. Heavy Rainfall Threat The atmosphere has abundant moisture, increasing the risk of heavy rainfall with these storms. Prolonged thunderstorm activity could accumulate over 50 mm of rain in just a few hours, leading to localized flooding. Urban areas are particularly susceptible to flash flooding. Afternoon and Overnight Activity Thunderstorms are possible throughout Thursday evening and overnight, with the potential for localized flooding as storms move slowly and drop significant rain in the same location. Heat Warnings in Effect Widespread heat warnings remain in effect, with temperatures soaring into the 30s and feeling even hotter with the humidex. Stay Informed Monitor The Weather Network for ongoing weather updates and safety precautions for southern Ontario.Hot, humid air continues to feed southern Ontario thunderstorm chances TORONTO – Airmass thunderstorms are expected to develop over southern Ontario Friday afternoon into the evening. Environment Canada has issued a severe thunderstorm watch for the regions of Bruce, Grey, Huron, Perth, Wellington and Waterloo. The storms are expected to produce heavy downpours, possible hail and strong wind gusts. The watch is in effect until 9 p.m. EDT. Other areas of southern Ontario are under a thunderstorm risk, including the regions of Chatham-Kent, Essex, Lambton, Middlesex, Oxford and Elgin. Environment Canada says the hot and humid air in place over the region will provide ample fuel for the development of thunderstorms. The storms are expected to move from west to east across the province. Residents are advised to be prepared for severe weather and to take shelter if a thunderstorm warning is issued.