National Weather Service United States Department of Commerce

Weather-Ready Nation

National Program

Fog Infographics

Weather.gov > Weather-Ready Nation > Fog Infographics

Fog Infographics

 

Patchy fog can surprise you: Be ready for sudden changes in visibility. Turn on your low-beam headlights when approaching fog. Drive slowly, and keep your distance from other vehicles. Use extra caution on bridges and in valleys.
infograpgy
Dense fog is a road hazard: Turn on your low-beam headlights when approaching fog. Drive slowly, and keep your distance from other vehicles. Consider delaying travel when a Dense Fog Advisory is issued.
infograpgy
Pictured: Car driving in fog. Text: In dense fog, you only have seconds to react!
infograpgy
Pictured: Car driving in fog. Text: In dense fog, you only have seconds to react!
infograpgy
Fog Safety - Disabled Vehicle in Dense Fog: 1. Pull well onto the shoulder. 2. Turn off all lights except 'flashers'. 3. If possible leave your vehicle and move away from the road.
infograpgy
The Science of Vallery Fog: 1. Air cools at higher elevations as the ground radiates heat into the atmosphere and space. 2. Cooler air drains downslope into the valley. 3. A cool, stable layer forms the ground, which limits turbulent mixing and traps the cool, moist air. 4. The air near the ground continues to cool until water vapor moleculesd are changed into small droplets of liquid water.
infograpgy
Small Decisions: Fog
infograpgy