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The summer of 2017 has so far proven to be rather active as far as thunderstorm activity is concerned.
This is because of the jet stream being positioned just north of or in Ohio. Cool dry air from Canada tries to make its way into Ohio while very warm or hot muggy air from the south tries to move north. It's this conflict between the two air masses that produces the in-climate weather.
During the morning of Friday, July 7, a complex of thunderstorms developed over northern Illinois. By late morning that batch of thunderstorms had increased in size and strength and was entering northwestern Ohio. While not nearly as strong as the Derecho of June 2012, this complex had some nasty weather with it.
As it moved southeast into the heart of Ohio, numerous reports of hail began to filter into the local National Weather Service offices. As it moved into central Ohio reports of strong winds began to occur. Some reports included Rickenbacker Air Base on the southeast side of Columbus with 58 mph, Newark / Heath airport in Licking County with 45 mph and Newcomerstown with 44 mph. Numerous trees were either damaged or brought down as a result of the thunderstorm complex moving through Ohio. In some cases not a lot of rain was observed. In Newcomerstown, only 0.25" of rainfall was measured.
As long as the jet stream continues to be in the vicinity of Ohio, you can expect thunderstorm activity to develop quite often. This is not good news for our already saturated ground.