1.   Instead, pockets of surface air, heated by the warming earth, ascend through a cold upper atmosphere, often forming showers.

2.   Instead, pockets of surface air, heated by the warming earth, ascend through a relatively cold upper atmosphere, often forming more localized showers.

3.   Instead, pockets of surface air, heated by the warming earth, ascend through a cold upper atmosphere often forming the showery rains of April.

4.   Instead, pockets of surface air, heated by the warming earth, ascend through a cold upper atmosphere, often resulting in the showery days of spring.

5.   Nothing moves except early morning shimmers of heat rising from the warming earth.