Showers and thunderstorms are expected throughout the day in Rochester and because of that the popular downtown Thursdays on First & 3rd festival has been canceled for today. Organizers sent this update:

"The RDA staff has spoken with the National Weather Service this morning and they have advised there is a very strong chance for showers and thunderstorms all through today. The chance for the rain and thunderstorms begins at 7:30am and stays consistent throughout the day, with only a minor break in the early afternoon. 
Due to the likely rain and storms consistently throughout the day, the event today, July 19th, has been canceled. Safety is always our number one priority. 
We know and share in the disappointment of the weather today. We appreciate your support and understanding and look forward to seeing you next time."