Chapter 1 Atm/weather

Front 1

how do cold and warm fronts move?

Back 1

warm front-warm air mass advances up and over a retreating cold air mass, the cold air forms a wedge under the warm air.
cold front-cold air advances under and pushes up warm air.

Front 2

warm front

Back 2

less dense than cold air, forms a wedge over cold air, leading edge-plotted as warm front.

Front 3

cold front

Back 3

more dense than warm air, slides under and pushes up warm air, leading edge-plotted as cold front.

Front 4

what are the three types of clouds?

Back 4

stratiform (horizantally layered, develop where air ascends gently, often form ahead of warm fronts),
cumulus (appear puffy, develop where air ascends vigorously, form ahead of cold fronts),
cumulonimbus (build vertically and merge laterally, thunderstorm cloud, producing lightning and thunder, torrential rains, large hail, strong and gusty winds, and tornadoes).

Front 5

N.O.A.A

Back 5

National Oceanic Atmospheric Administration

Front 6

N.W.R

Back 6

National Weather Radio

Front 7

S.A.M.E

Back 7

Specific Area Message Encoding

Front 8

how many types of pressure systems are there and what are they?

Back 8

two. highs (anticyclones) and lows (cyclones).

Front 9

weather

Back 9

the state of the atmosphere at some place and time.

Front 10

meteorology

Back 10

the study of the atmosphere and the processes that cause weather.

Front 11

climate

Back 11

weather condtions at some locality averaged over a specific time period.

Front 12

climateology

Back 12

the study of climate, its controls, and spatial and temporal variability.

Front 13

air pressure

Back 13

weight per unit area of a column of air that streches upward from the earths surface to the top of the atmosphere.

Front 14

air mass

Back 14

a huge volume of air covering hundreds of thousands of square kilometers that is horizantally relatively uniform in temperature and humidity; typically associated with a large high pressure system.

Front 15

front

Back 15

a narrow transition zone between air masses that differ in temperature, humidity, or both.

Front 16

maximum and minimum temperature

Back 16

the highest and lowest air temperature recorded over 24-hour period.

Front 17

what are the four types of air masses?

Back 17

cold and dry, cold and humid, warm and dry, warm and humid

Front 18

dewpoint (frost point)

Back 18

temperature to which air must be cooled at constant pressure to become saturated with water vapor and for dew (frost) to begin forming on relatively cold surfaces.

Front 19

relative humidity

Back 19

a measure of the actual concentration of the water vapor component of air compared to the concentration the air would have if saturated with water vapor.

Front 20

precipitation amount

Back 20

depth of rainfall or melted snowfall over a 24-hour period.

Front 21

wind direction/speed

Back 21

the compass direction from which the wind blows/the velocity of the wind.

Front 22

sky cover

Back 22

based on the fraction of the sky that is cloud covered.

Front 23

what are the two types of weather notifications?

Back 23

weather watch-hazardous weather is considered possible based on current or anticipated atmospheric conditions.
weather warning-hazardous weather is imminent or actually taking place.
-->both issued by by the N.W.S.

Front 24

G.O.E.S.

Back 24

geostationary operational environmental satellite

Front 25

P.O.E.S.

Back 25

Polar-orbiting Operational Environmental Satellite.