2 Minutes

If you observe towering cumulus clouds forming, feel a sudden drop in temperature, accelerating wind speed of 15 to 20 mph, and a rising barometer, what conclusions can you draw? Click on the best answer.

HINT: Cold air that spreads out from a thunderstorm raising barometric pressure means that the air is becoming more dense.


A) A thunderstorm is approaching. You should avoid flying until it passes.

B) A thunderstorm has just passed. It is now safe to fly.

C) It is a clear, fair weather day. Flight conditions are good.
Please send any comments to:
Curator:
Tom.Benson@grc.nasa.gov
Responsible Official: Kathy.Zona@grc.nasa.gov