What is the typical format for reporting wind in METAR reports?

The typical format for reporting wind in METAR reports is wind direction in degrees followed by wind speed in knots. This format is standardized to ensure uniformity and clarity in aviation weather reporting.

In a METAR report, wind direction is expressed in degrees true north (with 0° being north, 90° east, 180° south, and 270° west), while wind speed is given in knots, which are a nautical measurement. For instance, the representation "27010KT" indicates that the wind is coming from 270 degrees at a speed of 10 knots. This precise and concise format allows pilots and meteorologists to quickly ascertain the wind conditions at an airport or weather station, which is crucial for safe flight operations.

The other options deviate from this standard format. Reporting wind speed in miles per hour or kilometers per hour is not used in METAR reports. Additionally, using radians or providing an angle without specifying both the speed and direction in the METAR standard does not meet the reporting criteria established for this format. Thus, the choice that aligns with the established guidelines for wind reporting in METAR is the one that specifies direction in degrees and speed in knots.