Questions weather Flashcards
Ambient lapse rate
rate of decrease in temperature with altitude. Stability can be determined
unstable cold airmass moving to warm area.
Cumuliform clouds, turbulence and good visibility
Unstable air means
Cumuliform clouds,
showery precipitation,
turbulnace,
good visibility
Lenticular altocumulus clouds
created by on the crest of waves created by the barrier in the wind flow.
very Strong turbulence
Jet stream
high altitude, may be marked by cirri form clouds
Small or huge temp. change in stratosphere (above the stratosphere)
small
Form of advection fog
example
Moist air moves over colder ground to water
for example: an air mass moving inland from the coast in winter
Temperature inversion
is standard lapse rate and stable air
Wind necessary for which type of fog
advection and upslope
Why at 5000 ft wind is from southwest but surface is from south
Coriolis force deflected by surface friction
4 families of clouds
High, Middle , Low and extensive vertical development
cumulus clouds indicate
good visibility, turbulence at and below level clouds
feature associated to tropopause
abrupt change in lapse rate and hight is 20000 to 65000
Wind speed of jet stream
50 knots
unstable airmass is forced to ascend a mountain slope
clouds with extensive vertical development