weather quiz 2 Flashcards
(28 cards)
what determines how much water vapor air can hold
temperature
what is relative humidity
the ratio of actual water content to the maximum possible water content at that temp
temperature to which air must be cooled to become saturated by the water vapor already present in the air
dew point
solid to gas
sublimation
gas to solid
deposition
4 types of precipitation
snow
hail
sleet
rain
if and AirPort is reporting precipitation, expect clouds to be more than _______ ft thick
4000 ft
fog is formed when the temperature dew point spread is
3*C or less
a stable atmosphere __________ vertical displacement
resist
an unstable atmosphere _________ vertical displacement
allows
T/F: Thunderstorms may be embedded in stratiform clouds formation
true
turbulence is usually encountered _______ cumulus clouds
below
clouds formed by vertical currents in unstable air are _______.
Cumulus
Clouds formed by the cooling of a stable layer are
stratus
the prefix nimbus means
rain cloud
the most dangerous cloud by far is the
cumulonimbus
when flying near CB clouds, always fly on the _________ side
upwind
the zone between two different air masses is known as
frontal zone
what 3 things always change across a front
temp
wind
pressure
4 principal types of fronts are
cold front
worm front
stationary front
occluded front
what are the most dangerous characteristics of a warm front
embedded thunderstorms
high clouds are called
cirrus
water vapor is
clear gas
air that can not hold any more water is considered
saturated