In the METAR report for EDAR, what does the temperature relative to the dew point indicate?

In METAR reports, temperature relative to the dew point provides crucial information about the moisture content in the air and potential for cloud formation. When the temperature is noted as being 3 degrees above the dew point, this situation typically indicates that the air is relatively dry, as the temperature is still higher than the dew point. This means that the air must cool significantly to reach saturation, which is necessary for clouds or precipitation to form.

This relative difference between temperature and dew point can inform a pilot about weather conditions, specifically indicating stable conditions conducive for flying, since there is less moisture available to create turbulence or low visibility due to fog. A close temperature and dew point value usually suggests higher humidity and increased likelihood of weather phenomena like precipitation or clouds. Thus, stating that the temperature is 3 degrees above the dew point is indicative of favorable and relatively clear flying conditions.