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Fog forms when the air has a high relative humidity, the water vapour condenses to form very small droplets, which remain suspended in the thermal currents of the air.

This occurs when the air temperature, is above the freezing temperature of the water. Below this temperature, the water freezes and fall to the ground to form Frost.

At sub-zero temperatures, the air is very dry.

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16y ago
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6mo ago

Fog can form in cold temperatures when warm air passes over a cold surface, causing the air to cool and reach its dew point, leading to condensation and the formation of tiny water droplets that we see as fog. This process is known as advection fog and can occur in valleys or near bodies of water where temperature differences exist.

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Q: How can fog form when its really cold?
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On a really cold day last winter roughly 30 C below the river in my town appeared to be steaming in the morning light. Could it have been fog over the water or another phenomena?

It is likely that the steam was caused by the relatively warmer water of the river evaporating into the cold air, creating a fog-like effect. This phenomenon is known as steam fog or sea smoke, and typically occurs when cold air moves over warmer water surfaces.


Why does fog often form off the coast of labrador?

Fog often forms off the coast of Labrador due to the meeting of cold Labrador Current waters with warmer air masses. When the warm, moist air comes into contact with the cold water, it cools and condenses, creating fog. This phenomenon is common in regions where cold ocean currents flow close to land.


Why does fog form over lakes and ponds on cold days?

Fog forms over lakes and ponds on cold days when the air temperature cools to the point where it reaches its dew point temperature, causing water vapor in the air to condense into tiny water droplets. The relatively warmer water in the lake or pond can then provide enough moisture to saturate the cool air above it, leading to the formation of fog.


Warm air over cold water results in?

Warm air over cold water results in a phenomenon known as sea fog. This occurs when the warm, moist air cools down upon contact with the cold water, leading to condensation and the formation of fog. Sea fog can reduce visibility and affect navigation for ships.


When you see steam fog or clouds you are seeing water in which state?

When you see steam fog or clouds, you are seeing water in its gaseous state. Steam fog occurs when cold air comes into contact with warm water vapor, causing condensation to form into fog. Clouds are also formed by the condensation of water vapor in the atmosphere.

Related questions

Could fog form on hot nights?

Yes, if there are hot lights out were its cold, chances are they will get fog on them. Yes, if there are hot lights out were its cold, chances are they will get fog on them.


Does fog form in cold weather?

Yes, fog can form in cold weather. When moist air comes into contact with a cold surface or is cooled to its dew point, it can condense into water droplets suspended in the air, creating fog. Cold weather can enhance the process of fog formation by lowering the temperature of the air and increasing its moisture content, contributing to the formation of fog.


Why does fog form at night a disappear during day?

Well I think it is because sometimes its really cold in the night and in the day the sun is out so u can't see fog I might be wrong I got this from the top of my head


On a really cold day last winter roughly 30 C below the river in my town appeared to be steaming in the morning light. Could it have been fog over the water or another phenomena?

It is likely that the steam was caused by the relatively warmer water of the river evaporating into the cold air, creating a fog-like effect. This phenomenon is known as steam fog or sea smoke, and typically occurs when cold air moves over warmer water surfaces.


Is fog hot or cold?

Fog is neither hot nor cold, as it is composed of tiny water droplets suspended in the air. The temperature of the fog will generally be similar to the surrounding air temperature.


Why does fog often form off the coast of labrador?

Fog often forms off the coast of Labrador due to the meeting of cold Labrador Current waters with warmer air masses. When the warm, moist air comes into contact with the cold water, it cools and condenses, creating fog. This phenomenon is common in regions where cold ocean currents flow close to land.


What is the adjective of fog?

The adjective form of "fog" is "foggy."


Why does fog form over lakes and ponds on cold days?

Fog forms over lakes and ponds on cold days when the air temperature cools to the point where it reaches its dew point temperature, causing water vapor in the air to condense into tiny water droplets. The relatively warmer water in the lake or pond can then provide enough moisture to saturate the cool air above it, leading to the formation of fog.


How a fog froms?

warm air and cold air gets together and make fog


What weather is fog?

Fog is just clouds that are really low.


Why does CA coast have so much fog?

The California coast experiences fog due to the cold ocean currents meeting the warm air from the land. This temperature difference causes the moist air to condense and form fog. Additionally, the coastline's topography, with cool ocean breezes and warmer inland temperatures, contributes to the fog formation.


What do you call moisture in cold mornings?

fog