AVWX

Question 1

Break in tropopause

Question 2

Cirrus on equatorial side

Question 3

Wind shear on polar side of jet stream due to greater wind speed decrease

Question 4

Large land masses = increase temp variations

Question 5

Tropopause:
abrupt change lapse rate
Decrease temp w increase altitude

Question 6

Arctic and subtropical wx system movement:
East to west

Question 7

Indian Ocean

Question 8

Anti-cyclone = high pressure

Question 9

Coriolis least at equator, greatest at poles

Question 10

Occluded front crossed by jet stream

Question 11

Jet stream
50 knots or greater
Winter = strongest
Occluded front
North of surface wx systems

Question 12

Steep frontal surface = cold front

Question 13

Dew point front (dry line):
Air density and dew point difference

Question 14

Trough = low
Ridge = high

Question 15

Low = ascending air

Question 16

Parcel of air colder than surrounding air will sink

Question 17

Frontal waves form in slow-moving cold fronts or stationary fronts

Question 18

Katabatic = downsloping wind

Question 19

Adiabatic = temp change by expansion or compression

Expansion = cooling
Compression = warming

Question 20

Cloud bases form

Question 21

Peak temp around noon
Min temp just after sunrise

Question 22

Inversion:
Stable air
Poor visibility
Wind shear
Clear, calm night

Question 23

Saturated air moving downhill temp warms slower

Question 24

Stability determined by lapse rate and cloud types

Question 25

Variations of solar energy at Earth surface

Question 26

Thermal low Dry, sunny region

Question 27

Friction decreases wind speed and Coriolis force

Question 28

Tropopause temp -55 to -65
(approx 2°/1,000 based on 36,000 avg tropopause)

Question 29

Jet stream speed decrease greater on polar side

Question 30

Large areas of land = increased temp variations

Question 31

Coastal land surface cooling = land breeze

Question 32

Stationary front = surface winds parallel front

Question 33

Cold air = pressure increase

Question 34

Winds parallel front = front moves slowly if any

Question 35

Winds across front = rapid frontal movement

Question 36

Frontal waves form in slow-moving cold or stationary fronts

Question 37

Standard lapse rate 2°/1,000’
Unsaturated lapse rate 3°/1,000’
Saturated lapse rate 1°/1,000’

Question 38

Water vapor to liquid = latent heat released

Question 39

Dew point lapse rate / dry adiabatic lapse rate converge:
Cloud bases form

Question 40

Saturated air moving downhill = temp increase slower

Question 41

Stability determined by cloud types

Question 42

Clouds with extensive vertical development = unstable air

Question 43

Cumulous clouds = possible turbulence

Question 44

Haze is dispersed by wind

Question 45

Wind above 15 knots lifts advection fog to create low stratus or stratocumulus layer

Question 46

Moist air moving over rising ground = upslope fog

Question 47

Warm rain/drizzle falling through cooler air = precipitation-i duced fog

Question 48

Temp/dew point 10/10, light wind, clouds/rain = radiation fog

Question 49

Lee side lake fog: warm air flowing over colder lake

Question 50

Significant precip = min 4,000’ cloud thickness