7.8 Temperature/Dew point and fog

Question 1

if the temperature/dewpoint spread is small and decreasing, and the temperature is 62’F, what type of weather if most likely to develop

Answer 1

fog or low clouds

Question 2

what is meant by the term “dewpoint”

Answer 2

the temperature to which air must be cooled to become saturated

Question 3

the amount of water vapor which air can hold depends on the

Answer 3

air temperature

Question 4

what are the processes by which moisture is added to unsaturated air

Answer 4

evaporation and sublimation

Question 5

clouds, fog, or dew will always form when

Answer 5

water vapor condenses

Question 6

low-level turbulence can occur and icing can become hazardous in which type of fog

Answer 6

steam fog

Question 7

in which situation is advection fog most likely to form

Answer 7

an air mass moving inland from the coast in winter

Question 8

what situation is most conductive to the formation of radiation fog

Answer 8

warm, moist air over low, flatland areas on clear, calm nights

Question 9

what types of fog depend upon wind in order to exist

Answer 9

advection fog and upslope fog