11.   Last month, when I was visiting in the Midwest, a storm front came in one evening.

12.   Meg McKnight, a spokesman for Pacific Gas and Electric Co., said the current storm front had disrupted power to more people than the January storms.

13.   One potential Achilles heel of the radar is its inability to track low storm fronts.

14.   Over the weekend, storm fronts had them balking.

15.   Relentless storm fronts have dumped three times the normal amount of rainfall so far this year on central Chile.

16.   Storm fronts will march along the escarpment down to the coast, sometimes setting precipitation records, all because of a little elevation.

17.   Storm front ahead.

18.   The drive toward my office in Atlanta had grown progressively more difficult as the storm front from Oklahoma moved through.

19.   The impunity of corrupt officials, as well as the social callousness of the shock-treatment economic model, have created a menacing storm front.

20.   The impunity of corrupt officials, as well as the social callousness of the economic model, have created a menacing storm front.