CLOUDS

By: Cheinie :)

HIGH CLOUDS!

6KM; Small amount of H2O vapor& low temps. due to the altitude

-Thin white& composed of ice crystals

Cirrus; Cirrocumulus; Cirrostratus

MIDDLE CLOUS

2-6KM; Composed of liquid H2O vapor

Alto- means middle

Altocumulus- settled weather

Altostratus- changing weather

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LOW CLOUDS

2KM; Sometimes occur as individual clouds but more often appear as a general overcast.

-Ofter wide spread& are associated with somber skies& drizzly rain

Stratus; Stratocumulus; Nimbostratus

VERTICAL CLOUDS

Low base that extend to heights as much as 15KM indicates very active vertical movements in the air.

Cumulus& Cumulonimbus

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FOG

A cloud on the ground there are four types

Radiation Fog, Advection Fog, Upslope Fog, and Evaporation Fog

Radiation Fog- When the ground loses heat through radiation; usually at night, fog condenses in the cool air at the dew point.

Advection Fog- When warm, moist air moves horizontally over a cold surface such as snow-covered found or a cold ocean (from sea to land).

Upslope Fog- Created adiabatic cooling occurs when humid air climbs a topographic slope.

Evaporation Fog- Water vapor is added to cold air that is already near saturation.