11.   A large fair weather system, crested over Wyoming, will circulate Pacific air into this region with ample sunshine and an active afternoon breeze.

12.   A growing high pressure system along the Virginia coast will circulate warmer air from the Gulf states into the Ohio Valley and toward the Northeast.

13.   A large disturbance over Iowa will circulate drier air from the southern Plains into the middle Mississippi Valley.

14.   A westward extension of the Bermuda high will assist in circulating tropical air from the southern Plains into the rest of the nation east of the Rockies.

15.   Add a fan to circulate air.

16.   All fish except goldfish and bettas require a filtration system to circulate air in the water.

17.   Ceiling fans should blow toward the ceiling in winter to circulate heated air around a room.

18.   Dry and chilly conditions will return to the Northeast on Sunday as high pressure builds near Lake Huron and circulates Canadian air into New England.

19.   Earlier, a low-pressure system off the Southeast Coast had circulated dry air southward over the peninsula.

20.   High pressure over the Four Corners will circulate humid air into the Southwest.