11.   I felt a current of cool air.

12.   Warm air is more buoyant than cool air.

13.   Jessica drew in a great breath of cool air.

14.   Ample sunshine will mix with only a few clouds, though it will be chilly in the Northeast as a persistent flow of cool air from Canada persists.

15.   An enormous pool of cool air in the upper atmosphere will move southeastward through the Mississippi Valley on Thursday.

16.   Ample sunshine and cool air will stretch along the Pacific Coast, though clouds will persist over western portions of Washington.

17.   Ample sunshine and seasonably cool air will affect the lower Mississippi Valley and interior Southeast while sunny and pleasant conditions cover the Florida peninsula.

18.   Ample sunshine and seasonably cool air will cover the Southeast while clouds dim the sun across south Florida.

19.   An infusion of cool air from the continent caused the hurricane to lose some characteristics of a tropical cyclone and take on the appearance of a middle latitude storm.

20.   Another pool of unseasonably cool air will drift over the northern Rockies and northern Plains.