Those are model derived fields.  2 meters just is a rounded measurement of the usual height temperature/moisture is measured near ground level (1.5 meters).  Just think of it as the temperature and relative humidity you see reported on the news.  Models themselves still don't have a good handle of 2 meter temperature, which is why MOS (model output statistics) still exist.  10 meters is just the standard height of wind measurement.  When you hear on the news that the wind is south at 10 mph, it is at the 10 meter (33 foot) level.  Sorry about the delay in the response.