11.   Only broken clouds and shifting winds will mark the passage of the cold front from central New York to northern Kentucky.

12.   Shifting winds and scattered clouds will mark the passage of the front.

13.   Shifting political winds in a developing country could undo any long-term agreement that Conservation International managed to reach.

14.   Shifting winds will impart rotation to some of the thunderstorms, which may spawn a few tornadoes.

15.   Shifting winds with height will create enough twist in the atmosphere to produce isolated tornadoes, especially near Iowa.

16.   Shifting winds changed the tenor of firefighters from a morning of optimism into an afternoon of concern.

17.   Strong shifting winds will surround the front as it crosses the region Saturday night.

18.   Strong shifting winds will impart rotation to some of the storms, heightening the risk of a few twisters from eastern Texas and Oklahoma to the southern Mississippi Valley.

19.   Strong shifting high-level winds accompanying a jet stream disturbance will heighten the risk of scattered tornadoes across the central Plains later Friday.

20.   The shifting wind in the vertical, called wind shear, helps provide the twisting motions that can be concentrated into a tornado.