What measurement is typically used to assess the severity of winds?

Wind speed in knots is the standard measurement used to assess the severity of winds. This unit provides a clear indication of how fast the wind is blowing, which directly relates to its potential impact. Higher wind speeds can lead to more severe weather conditions, such as storms, and can affect aviation operations, maritime activities, and even daily weather conditions.

Other options, while relevant to weather conditions, do not directly measure wind severity. Barometric pressure is more indicative of atmospheric conditions and weather patterns, temperature gradients indicate changes in temperature that could lead to wind but do not measure wind speed itself, and humidity levels relate to moisture in the air rather than wind characteristics. Thus, wind speed in knots is the most relevant and effective measurement for determining the severity of winds.