A flashing yellow light at an intersection means you should slow down and proceed with caution. Drivers facing a flashing yellow light are permitted by law to proceed through the intersection without stopping, but it is good practice to drive defensively, especially in situations like these when other drivers may not adhere to traffic safety rules. Flashing yellow lights are used permanently at some intersections, and during times of low traffic volume at others. A flashing yellow light at an intersection means, in most cases, that the traffic light facing the intersectional streets is a flashing red light. Unlike a solid yellow light, a flashing yellow signal does not indicate that the light is about to turn red. Instead, the light will remain flashing yellow while the opposing light will continue flashing red.
In summary, a flashing yellow light means to proceed with caution, and drivers are permitted to proceed through the intersection without stopping.