Instrument Flight Rules (IFR) Practice Exam 2025 – The All-in-One Guide to Master Your IFR Certification!

The given wind and temperature forecast is encoded in a specific format used in aviation meteorology. In this encoding system, wind conditions are typically represented by the wind direction in degrees from true north followed by the wind speed in knots. This design also includes the temperature in a specific format.

In this case, 300 degrees represents the wind coming from the northwest, indicating the wind direction, while 200 knots specifies the speed of that wind. The temperature is expressed as part of the encoding where negative temperatures are indicated by adding 100 to the temperature value to ensure it remains a two-digit number if below zero.

For the temperature of -54 degrees Celsius, the calculation to encode this into the system is done by taking 100 and adding it to the absolute value of the temperature. Thus, -54 becomes 100 - 54 = 46, but to represent it in the encoding format, it is displayed as '54' since it is already processed.

Putting this all together, the wind and temperature forecast would be formatted as follows: 300 for the wind direction, 200 for the wind speed, and 54 for the temperature, but represented as a three-digit number as '954' for temperatures at or below zero.

Therefore, by combining