Ether Jones wrote:
Robert Gammon wrote:

the air has WEIGHT when
stepping outside on a sunshiny day with temps in the 90s and RH nearly 90.


Humid air is LIGHTER than dry air at the same temperature and pressure,
NOT heavier.


On what basis is this argument???

Seems to me that the more water vapor per cubic meter, the heavier the
volume of enclosed air is.


Hot air will rise over the top of cold air, yes, but hot is not
necessarily humid.