Up in or Into the Air

Up in or into the air crossword clue, 5 letters. A Daily Mail UK crossword question on Monday, 25 Sep 2017.

The solver: ALOFT

Up in or into the air in sentence

Saturated air at surface. Fog forms once evaporation up in or into the air results in supersaturation. If the dewpoint depression is small after sunset, clear skies will cause radiational cooling of the air quickly toward saturation. The dew point can increase due to a rain shower, previously saturated soils and irrigation. Since vegetation evapotranspirates moisture, fog first forms over grassy and vegetated areas. Fog is common in situations where a daytime shower saturates the soil, vegetation and boundary layer and then skies clear in the evening into the night hours.