When is fog formed

Other types of fog include steam fog, ice fog, hail fog, and precipitation fog. Since fog is suspended in the air, it obscures vision and can affect certain human activities, especially travel.

The droplets in a fog vary in concentration, which can cause partial to zero visibility. The aviation industry is particularly prone to the effects of fog, as limited visibility can make flying unsafe, especially during takeoff and landing.

This may keep planes grounded, which is inconvenient for both travelers and goods. There are also multiple car accidents each year that are the result of unsafe road conditions caused by fog. This happens as warm, moist air passes over cool water or land. The colder surface cools the air as it passes over, causing condensation and fog. This is a famous phenomenon in the San Francisco Bay; you've probably seen pictures of dense fog at the Golden Gate Bridge.

This is also common when a warm front brings warmer air over snow cover in the winter time. Skip to content. Medical Monday. Breast Cancer Awareness Month. Wheel Of Justice. Back to Class. Car Wash Forecast. Weather Info and Resources. Athlete Of The Week. Blanketing the Valley. Dancing with the Stars of the 'Burg. Election Results. National Results Map. This means like clouds it is a collection of tiny water droplets formed when evaporated water is cooled.

The way it is cooled determines how fog is formed. The first way that fog is formed is by infrared cooling. Infrared cooling happens due to the change of seasons from summer to fall and winter.

During the summer the ground absorbs solar radiation. As air passes over it is made warm and moist. When the seasons change this mass of warm moist air collides with the cooler that is now prevalent.

This cause is the water vapor in the air mass to condense quickly and fog is formed. As the air cools during the longer night the relative humidity increases, which can result in to fog formation. Windy mornings are fog free as strong winds mix the air near the ground with the drier, warmer air above. As autumn progresses, we will see a fog during the day forming over the unfrozen lakes.

This fog, called evaporation fog, forms when colder air moves over warmer water. Evaporation fog over a lake gives the appearance of steam rising out of the water and is sometimes referred to as a steam fog.