Final answer:
Winds Aloft Forecasts use magnetic direction and knots to represent wind direction and speed.
Step-by-step explanation:
The values used for Winds Aloft Forecasts are Magnetic direction and knots. The wind direction is reported in magnetic direction instead of true direction because aircraft instruments are designed to read magnetic direction. The speed of the wind is measured in knots, which is a unit of speed used in aviation and maritime contexts.
Learn more about Meteorology