The NOAA Weather Prediction Center has raised concerns about a slight chance of heavy rain across the Midwest, indicating that thunderstorms might quickly release substantial rainfall on already saturated soil. The Great Lakes area, including sections of New York and Pennsylvania, is still at risk as the system gradually moves eastward. With ongoing severe thunderstorm conditions, authorities warn that flash flooding could arise swiftly in lower-lying and urban locales. Emergency officials are advising residents in the impacted areas to refrain from driving through flooded streets, as water levels can escalate rapidly during these situations.