1.   As tropical air reaches the hill country, it ascends the sloping terrain, boosting the lift needed for intensifying rains.

2.   As the frigid air reaches the eastern lakes, more squalls will develop.

3.   Across interior Alaska, milder air has reached many places, but the chill has been slow to leave the deeper valleys.

4.   Advancing polar air will reach the Dakotas later Monday, preceded by clouds and flurries.

5.   After several days of low humidity, stickier air will reach the Northeast.

6.   Catch a head cold, and soon the world is practically tasteless because this flavorful air cannot reach the nasal passages.

7.   Chilly air will reach the interior West on Sunday.

8.   Cooler air will reach the northern Plains on Saturday, but temperatures will remain far above seasonal values.

9.   Cooler air will reach the Northwest behind a departing front while the Southwest and southern Plains remain mainly dry and hot.

10.   Cooler and noticeably less humid air will reach most of the Southeast as a cold front moves toward the Gulf of Mexico.