1.   And particles in the smoke from the fires prevent cloud droplets from growing to raindrop size.

2.   Any drop with larger diameter is considered to be a raindrop, while any drop with a smaller diameter qualifies as a cloud droplet.

3.   As for storms, as hot air near the ground rises into cooler regions, any moisture in the air condenses into cloud droplets.

4.   As the water molecules slowly collect and condense on the particles, cloud droplets form.

5.   But with many hailstones competing for the remaining cloud droplets, it is hoped that large and destructive hailstones would be unlikely to form.

6.   Here, they grow at the expense of surrounding ice crystals, cloud droplets and raindrops.

7.   Hurricanes, tropical brethren of winter storms, derive their energy from heat given off when moisture evaporated from warm seas condenses into cloud droplets.

8.   Some of it will evaporate quickly, only to eventually condense into cloud droplets elsewhere.

9.   The electrical charges created by the collision of super-cooled cloud droplets, graupel and ice crystals in turbulent wind currents ultimately result in lightning.

10.   Vast amounts of heat were released in thunderstorms as water vapor condensed in cloud droplets.