1.   The air should keep moving, with cold air continuously moving in.

2.   They like open situations where fresh air can move through and circulate freely.

3.   Any cap will do, of course, but there are models that have mesh crowns to allow for some cooling air to move through.

4.   Arctic air will move into northern and central New England on brisk breezes from the Northwest on Wednesday.

5.   As the air moves upward, it cools, causing water vapor it carries to condense and become visible as a cloud.

6.   Behind the front, cooler air will move into the eastern Great Lakes and Northeast on Tuesday.

7.   A cold front marking the leading edge of cooler, less humid air will move slowly through the eastern Great Lakes and Ohio Valley on Friday.

8.   Air moves when one region of air shifts to fill another region at lower pressure.

9.   Ahead of the front, milder air will move into the Northeast and Middle Atlantic states for a day as high temperatures climb slightly above seasonal levels.

10.   But Hickman says it depends on how fast the frigid air moves into the area.