Chapter 3 - Weather Flashcards
What environment is most conducive to frost formation?
Dewpoint of surface is below freezing, dewpoint is above freezing.
What is the best way for a remote pilot to determine the likelihood of local fog formation?
Monitor the temperature/dew point spread.
In what stage are thunderstorms the strongest?
Mature.
One weather phenomenon which will always occur when flying across a front is a change in the
wind direction.
Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Precipitation beginning to fall.
The weather report lists the ceiling at 800 feet. What is the highest you can operate your sUAS?
300 feet AGL.
Wind shear can exist
at all altitudes.
Every physical process of weather is accompanied by, or is the result of, a
heat exchange.
What causes variations in altimeter settings between weather reporting points?
Unequal heating of the Earth’s surface.
A stable air mass is most likely to have which characteristic?
Poor surface visibility.
The weather report lists the ceiling at 800 feet. What is the highest you can operate your
sUAS?
300 feet AGL.
Low-level turbulence can occur and icing can become hazardous in which type of fog?
Steam fog.
If the outside air temperature (OAT) at a given altitude is warmer than standard, the
density altitude is
higher than pressure altitude.
Which weather phenomenon is always associated with a thunderstorm?
Lightning.
(Refer to Figure 12.) The wind direction and velocity at KJFK is from:
180 degrees true at 4 knots.
