11.   Heavy fog, which limits visibility to a quarter of a mile or less, occurs, on average, less than two days per year around Phoenix.

12.   In Holbrook, visibility was limited to about six city blocks, and motorists drove with their vehicle lights on.

13.   Little natural light penetrates to the bottom, so their visibility is limited to a few feet.

14.   Moreover, the weather is expected to limit visibility over much of the United States.

15.   On Monday, gusting winds kicked up a ferocious standstorm that limited visibility so much that Marine pilots seemed to vanish as they walked across the runway.

16.   Rear and side visibility is limited by thick pillars and a mirror view blocked by the big spare carrier and the back-seat headrests.

17.   Ridge-top fog will limit visibilities of motorists driving over mountains.

18.   The front headrests limit the visibility of rear passengers, but otherwise visibility is fine.

19.   Triple-trailer trucks would limit visibility for others, they say.

20.   When up, the top severely limits rearward visibility, causing you to rely more on side-view mirrors than we like.