Which is a common first indicator of an approaching thunderstorm?
A
too hot
B
heavy wind
C
a buildup of dark clouds
D
lightning
Correct Answer: a buildup of dark clouds
The first indicator of an approaching thunderstorm is a buildup of dark clouds.
A thunderstorm is a storm with lightning and thunder; it is usually produced by heavy rain, gusty wind, and the cumulonimbus cloud. The thunderstorm is made up of moisture, unstable air and lift.