At +12 C and an elevation of 1,250 ft, what will be the approximate freezing level?

Prepare for the FAI Weather Exam with comprehensive study aids. Access flashcards and multiple choice questions packed with hints and explanations to ace your test!

To determine the approximate freezing level at a given temperature and elevation, it is important to understand how temperature changes with altitude in the atmosphere. Typically, the temperature in the troposphere decreases by about 2°C for every 1,000 feet of elevation gained.

Starting at a temperature of +12°C at an elevation of 1,250 feet, we can calculate the drop in temperature as we ascend higher. The freezing level is considered to be at 0°C.

To find the elevation where the temperature reaches this level, we first need to calculate how many degrees must be lost to reach the freezing point:

12°C (starting temperature) - 0°C (freezing temperature) = 12°C of temperature drop needed.

Using the standard lapse rate, we know that the temperature drops about 2°C per 1,000 feet. To find out how high one must go to achieve a 12°C drop:

12°C ÷ 2°C per 1,000 feet = 6,000 feet.

Since we are already at 1,250 feet, we must add that to our calculated ascent:

1,250 feet + 6,000 feet = 7,250 feet.

Therefore, the approximate freezing level

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy