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Water vapor is transparent, but there's a limit to how much water vapor the air can hold. The proportion of water vapor in the air compared to the maximum amount of water that the air can hold is called the "relative humidity", and every weather report includes this value.
But the maximum amount of water that the air can hold depends in part on temperature; the colder the air, the less water it can hold. When the relative humidity reaches 100%, you'll see the water vapor condensing into liquid water in the air. If the water droplets are small enough, we see it as fog; if the droplets are larger, it will fall as rain.
So when moist air gets cold - or when cold air gets moist, as happens around rivers or damp fields - you'll see fog forming.
We see the same phenomenon happens around cold objects, like a glass filled with ice. Moist air gets near the cold glass, and the water vapor in the air condenses into liquid water on the side of your glass, and runs down to make water rings on your wooden table. (That's why your mom wants you to use a coaster!)
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What type of fog results when moist air moves across a cold surface?
This is advection fog
When a body of warm moist air rises to a region of dry stable air what types of clouds will form?
fog clouds
What is Saturn air like?
moist moist moist
How does fog form over the ocean on summer mornings?
Fog forms over the ocean on summer mornings when warm, moist air moves over the cooler surface of the water. As the warm air comes into contact with the cooler water, it cools down, causing the moisture in the air to condense and form tiny water droplets or ice crystals, resulting in fog. This process is known as advection fog.
When fog forms the air is what?
When fog forms the air is dense. Which means it's "wet"
What type of fog results when moist air moves across a cold surface?
This is advection fog
What is an advection fog?
San Francisco is the poster child of advection fog. It is common anywhere you have a cold ocean current with frequent incursions of warm, moist air.
The type of the fog that results when moist air move across a cold surface is?
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
The type of fog that results when moist air moves across a cold surface is?
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
Different types of fog?
There are two types of fog, advection fog and radiation, or ground fog. Advection fog is common along the pacific coast of the United States. Warm, moist air over the Pacific Ocean is blown inward. The other kind of fog is radiation, or ground fog. This fog is common lots of places. It forms when a layer of warm, moist air forms low to the ground.
Why do air over the sea moist?
The air over the sea is moist because the sea water is constantly evaporating. This creates a dense sea fog or sea mist.
What is upslope fog?
An upslope fog is a fog created when moist air is lifted by a mountain or an upward sloping terrain. Condensation then occurs near the ground to form clouds.
When a body of warm moist air rises to a region of dry stable air what types of clouds will form?
fog clouds
Why does air turn into fog?
Because clouds are denser than air.
Warm moist air from the Gulf Stream blows over the cold land of England and Scotland producing?
fog
Why does ground fog form in the low areas near the shenandoah river?
"Cool, descending air meets moist air in the low areas near the river."
Why is warm air used to remove fog in cars?
"Fog" generally is composed of tiny droplets of water condensed from moist air as it cools. In a car it refers to the water condensed onto the cold windows. Warming the air and glass re-evaporates the water.
