Chapter 19: Weather Elements Flashcards
Moist and warm air mass formed over subtropical waters
Maritime tropical
Body of air with generally the same temperature and moisture content
Air mass
Boundary between two air masses
Front
Cold and dry air masses
Continental polar
What kind of fog results when moist air is blown over a cold surface?
Advection fog
What kind of fog results when moist air is carried by wind up a mountain until the air is cooled?
Upslope fog
What kind of fog is actually a cloud?
High-inversion fog
What kind of fog forms at night when the land surface cools the air above it to below the dew point?
Radiation fog
Whatever the atmosphere is doing at any time
Weather
What are the general types of clouds?
Cumulus, stratus, cirrus
All other types of clouds come from the three general types and are classified according to
Height (above the Earth’s surface)
Stratocumulus is likely to produce precipitation in the form of
Rain or snow
Altostratus produces moderate ____ ____
Surface winds
The cloud most associated with violent weather
Cumulonimbus
What three clouds have no types of precipitation associated with them?
Cirrus, cirrostratus, cirrocumulus
What clouds are closest to the surface of the earth?
Fog & Stratus
(stratus and stratocumulus)
Wind shear involves changes in speed and direction of the wind ___, ___, ___.
Horizontally, downwards, upwardly
A microburst is a threat to aviation and is associated with
Thunderstorms
A piling up of rounded masses
Cumulus
An occluded front occurs when a warm air mass is sandwiched between two cold air masses.
TRUE
A stationary front has a lot of movement along its edge
FALSE
A cold front’s general direction is from southeast to northwest
FALSE
Warm fronts are usually associated with low-pressure cells.
TRUE
The term lenticular results from the concave-shaped cloud that forms over mountains.
TRUE
Fracto is a term only associated with rain clouds
FALSE
(Associated with various cloud types; means “broken” or “ragged”)
Terrain factors may be one of the factors causing clear air turbulence (CAT)
TRUE
The turbulence classifications of light, moderate, severe are the same for all pilots
FALSE
Wake turbulence is produced by large aircraft only on landing
FALSE
