Foggy conditions in Tennessee during fall can create hazardous driving and walking conditions due to reduced visibility. Radiation fog, which forms during longer, cooler nights, is particularly common. With rain expected to replenish ground moisture, the risk of dense fog increases, especially in low-lying areas. Drivers should exercise caution, as visibility can drop to 1/4 mile or less, increasing the likelihood of accidents. Pedestrians should also be cautious when crossing streets in foggy conditions.