A cold front swinging across the Great Lakes will bring the threat of severe thunderstorms to the Ohio Valley on Tuesday afternoon and early Tuesday night.
This front already has a history of producing severe weather, sparking severe storms over the Plains on Monday and during the Independence Day weekend.
Pittsburgh and Eire, Pennsylvania; Buffalo, New York, Cleveland, Cincinnati and Columbus, Ohio; Indianapolis; and Toronto, Ontario, are some of the cities that will be in the path of Tuesday's gusty thunderstorms.
According to AccuWeather Severe Weather Expert Henry Margusity, thunderstorms along the front will bring damaging winds, flooding rain and perhaps a few tornadoes.
Any tornadoes that develop are likely to be short lived, but can still bring danger to lives and property.
Those across the Ohio Valley heading out around the evening commute may experience weather-related travel delays due to the timing of these storms.
AccuWeather MinuteCast® can tell you exactly when rain from a thunderstorms will start at your exact location. This can help you determine when the best time is to drive home from work, take a trip to the supermarket or to finish up an outdoor exercise to avoid encountering the heavy downpours.
Even if an approaching thunderstorm is not severe, it can still be dangerous.
"Anyone with outdoor activities should keep the rain gear handy, prepare for potential delays and be ready to move indoors as soon as thunder is heard," said AccuWeather Senior Meteorologist Kristina Pydynowski.
Those catching a break from the warm, humid weather by taking a dip in the pool should have an open ear and get out of the water when thunder rumbles.
Showers and thunderstorms are expected to expand from over the Ohio Valley to the coast of the mid-Atlantic by Wednesday and linger around through much of the day.
While Wednesday's storms are not forecast to produce severe weather, torrential downpours can still bring the danger of localized flooding.
View the latest watches and warnings at the AccuWeather Severe Weather Center and keep up to date with breaking weather information on Twitter with @BreakingWeather.