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FL❓HOW DO YOU DETERMINE THE BASE OF CLOUDS❓Do you know how to calculate the base of where cumulus clouds start forming? Here’s how pilots do it!
You need two things. The current temperature and the dew point.
Now you have to know that temperature and dew point get closer together with altitude. Because with rising altitude the temperature. So at the point where temp and dew point match, clouds start to form.
The rate at which they get closer together is 2 °C per 1,000 feet.
So let’s assume the ATIS gave you an outside temperature 28°C and the dew point is 4°C.
So when would the clouds from, 28 degrees minus three, so 24 degrees.
And as I said, the temperature and dew point get closer together with altitude at a rate of 2 °C per 1,000 feet, meaning we divide 24°C by 2 and in this case, is 12, easy!
So 12 times 1,000 feet means the base of the clouds will be around 12000 feet above the ground.
And this leads my nicely to an ATPLQ question.
A parcel of air has a temperature of +10°C and a dew point of +8°C. Cooling the air below its dewpoint will cause which of the following processes to occur first? A Sublimation B Condensation C Freezing D Evaporation
Just what we spoke about, answer B, it will condensate and form a cloud.
You need to practice these questions, nothing to it but to do it. Link is in my profile! Use it!
Your ATPL theory exam is coming—no matter what!
So let’s test your aviation knowledge. A parcel of air has a temperature of +10°C and a dew point of +8°C.
Cooling the air below its dew point will cause which process first?
A) Sublimation
B) Condensation
C) Freezing
D) Evaporation
Answer is coming in a second,
You need to practice these questions—there’s nothing to it but to do it. 💪
Hit the link right here and subscribe to ATPLQ today. Don’t wait—the exam is coming whether you’re ready or not!”
And the answer is B, Condensation. That’s when a cloud starts to form.”
@flywithcaptainjoe
