"Sweltering heat that gripped the Northeast for days finally begins to subside, but the region is now bracing for a new threat: flash flooding. As a heat wave that brought temperatures into the triple digits comes to an end, a low-pressure system is moving into the area, bringing with it heavy rain and the potential for flash flooding in parts of New York City and beyond. Residents in affected areas are advised to stay alert and avoid traveling unless absolutely necessary, as swollen rivers and streams could cause widespread damage and disruptions. With the National Weather Service issuing flash flood warnings, emergency officials are urging citizens to be prepared for the worst and to follow all instructions from local authorities."
Flash flood warnings issued for parts of New York City and Northeast as heat wave breaks The Killeen Daily Herald