National Weather Service
National Weather Service United States Department of Commerce

Wildland Fire navigation bar-top Fog Safety Home Fog Advisories Driving in Fog Boating in fog Flying in Fog

Fog over water

weather-ready nation link

Fog Navigation bar, hover for links Fog Safety Home Page Fog on the Water Super Fog Mountain and Valley Fog>
              <area shape= Freezing Fog Advection Fog Links and Partner Agencies Mountain and valley fog Radiation fog





Fog, particularly when dense, can be hazardous to drivers, mariners and aviators. Fog contributes to numerous travel accidents every year. Restrictions in visibility resulting from fog can also impact takeoff and landing procedures and requirements for pilots, and can be the cause of weather-related aviation delays. This website offers information on the hazards of dense fog and how to stay safe. If you, or someone you know, have been in a fog related accident, please share your story so we can prevent others from becoming a victim. When you write, please note that NWS has permission to use your story and, if possible, let us know the town and state you were in and the year the event took place.