CLOUDS
FOG
PRECIPITATION
AIR MASS
AIR MASS 2
100

Mid-level cloud that have a puffy appearance and often appear as rows

altocumulus

100

Fog that occurs when wind heated by warm ocean water blows over cool ocean water

Sea fog

100

Liquid precipitation that freezes when it hits the ground or another substance

freezing rain

100

A general term for an air mass that forms over the ocean

Maritime

100

This type of air mass is cold and dry

Continental polar

200

A mackerel sky occurs when this type of cloud forms a pattern resembling fish scales

Cirrocumulus

200

The fog that occurs due to adiabatic cooling of upward-moving air

Upslope fog

200

Consists of large drops of liquid water

Rain

200

This type of front forms when a maritime polar air mass pushes into a continental tropical air mass

Cold front

200

This type of air mass forms over the Caribbean Sea

Maritime Tropical

300

The least common type of high-level clouds

Cirrocumulus

300

Brownish haze that develops as complex molecules are broken down into ozone and other harmful substances

Photochemical smog

300

Ice crystals usually in geometric shapes

Snow

300

The boundary between two air masses of different temperatures.

Front

300

The type of air mass a frontal cyclone usually begins with

Stationary front

400

A cloud with a low-level base and a top composed of ice crystals

Cumulonimbus

400

A brief but intense snowfall

Blizzard

400

Layers of glaze and rime

hail

400

Two unmoving air masses of different temperatures form this type of front

Stationary

400

Increases the rate of condensation

Cool temperatures

500

A lens-shaped cloud that often forms near mountains

Lenticular

500

Raindrops that freeze on their way to the ground 

Sleet

500

The process in which rain forms from melted snowflakes

Bergeron-Findeisen process

500

When a cold front takes over a warm front 

An occluded front

500

The process through which frost forms

Deposition