11.   Abundant sun and cool weather will cover the Southwest, while fog will be common in the valleys of the interior West.

12.   Across sections of the Northeast, morning fog has generally been the precursor of a brighter, rain-free afternoon.

13.   But fog is essential to mysteries.

14.   But if there is fog at sunset, then the following day the fog may not burn off at all.

15.   But he hedged that prediction, noting that the fog of war was still thick in Afghanistan.

16.   By the time their instructors found them, the fog was too thick for the helicopter to find them.

17.   Dense fog will be slow to lift over the inland valleys of the Northeast as a veil of high clouds dims the sunshine.

18.   Fog was thick as cotton.

19.   Fog will be common in the valleys of the central Appalachians, but sunshine will dominate much of the Middle Atlantic region, with seasonably mild readings.

20.   Fog will be common Thursday morning in the eastern Ohio and Tennessee valleys.