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When moist air rises, it cools, and water vapour in the air condenses to form clouds. Can mean rain, snow fog, dew, clouds.
Refers to the amount of water vapor that is in the air.
When the air saturated with water and it begins to condense and precipitate.
The percentage of water vapor in the air (from 0-100%) versus its capacity. Therefore:CONTENT/CAPACITY x 100= %
Condensed water vapor that forms on solid surfaces.
Frozen water vapor that has condenses and frozen on solid surfaces.
Forms when air close to the ground is cooled to its dew point. Water vapor condenses to form a low laying cloud.
Forms at night when the ground cools the air above it so the relative humidity goes up and fog forms.
Occurs when moist air passes over a cool surface by wind and is cooled.
Cirrus, cirrostratus, cirrocumulus. 7000-13000 meters in altitude.
Altostratus, altocumulus. 2000-7000 meters in altitude.
Stratocumulus, stratus, nimbostratus. 300-2000 meteres in altitude.
Cumulonimbus, cumulus. Extend between 500-13000 meters in altitude.
Puffy in appearances, like a cotton ball.
Very thin and "wispy" clouds. High in the sky.
Horizontal layers, layered like a cake. Fairly low laying clouds.
When clouds are forced up and over a mountain.
Moist side of a mountain where clouds are forced to drop their water vapor.
Dry side of a mountain that clouds are forced over. Little to no moisture is left to precipitate here.
When 2 air masses meet. Warm air is forced to rise in all situations.
Sun heats the ground which heats the air causing it rise. Air rises and cools, dew point is reached and it rains. Creates vertical clouds.