Did It Rain before the Flood?
Genesis 2:5-6 suggests that it did not rain before the flood:
Now no shrub of the field was yet in the earth, and no plant of the field had yet sprouted, for the Lord God had not sent rain upon the earth; and there was no man to cultivate the ground. But a mist used to rise from the earth and water the whole surface of the ground.1
But notice, these verses state only that shortly after the earth was created, it had not rained. How long did this condition last? Some believe that this mist began the evaporation-rain cycle. If so, the period of no rain was brief, and it rained before the flood. Let's look for other clues.
Rainbows. God promised never again to flood the entire earth (Genesis 9:12-17), a promise marked by a "bow in the cloud"?-a rainbow. Rainbows form when raindrops refract sunlight. This suggests that rainbows began after the flood, which would mean there was no preflood rain.
Others disagree, saying rainbows may have been visible before the flood, but afterward God simply associated His promise with rainbows. This would be similar to the symbolism of a wedding ring. Rings existed before a wedding, but afterward the ring recalls a solemn vow. However, if rainbows suddenly began after the flood, the rainbow's symbolic effect would have been more unforgettable and reassuring to the frightened survivors of the flood.
Some argue that rainbows would have formed before the flood every time water splashed and sunlight passed through the droplets. This argument overlooks that God's promise concerned rainbows "in the cloud," not a relatively few drops of water several feet above the ground.
A Terrarium. The Hebrew word translated "mist," in Genesis 2:6 is used in only one other place in the Bible?-Job 36:27. There it clearly means water vapor. So, did the preflood earth act as a humid terrarium in which water vapor evaporated, condensed without rainfall, and watered the earth? Could an earth-size terrarium produce enough water to supply major rivers, such as described in Genesis 2:10-14? Two preflood rivers, the Tigris and Euphrates, were evidently the basis for naming the mighty postflood rivers that today bear the same names. [See Endnote 4 on page 312.]
The preflood earth was quite different from today's earth. If the hydroplate theory is reasonably correct, earth's preflood topography was smoother, so rivers flowed more slowly and required less water to keep them filled. No volcanoes, major mountains, glaciers, or polar ice existed before the flood. Approximately half the earth's water was under the earth's crust, so the earth's surface had about half the water it has today. With 360-day years, days were slightly longer, so temperatures were slightly higher during the day and colder at night. [See pages 102-132 and Endnotes 16-23 on page 155.] The preflood earth had greater land area, because the flood produced today's ocean basins. [See pages 138-159.] Preflood forests were vast and lush, enough to form today's coal, oil, and methane deposits. This left little room for deserts. Could these preflood conditions have prevented rain, yet adequately watered a thirsty earth?
Condensation Nuclei. Water droplets almost always begin with water vapor condensing on a solid surface. A common example is early-morning dew that collects on grass. Raindrops, snowflakes, and fog particles begin growing on microscopic particles carried in the air. These particles, called condensation nuclei, are typically 0.001-0.0001 millimeters in diameter?-less than one hundredth the diameter of a human hair. Each cubic inch of air we breathe contains at least 1,000 such particles. Water vapor molecules rarely collide and stick together; instead, a water droplet forms when trillions of water molecules collect on a microscopic particle.
Wind. Most wind is produced by atmospheric temperature differences; wind then mixes air that has different temperatures and moisture contents. The various "mixtures" give us weather: rain, snow, hail, hurricanes, tornadoes, droughts, fair weather, etc. Without today's major mountains, ice sheets, volcanoes, and vast oceans,2 the preflood earth had more uniform temperatures. Also, abundant vegetation moderated temperatures by evaporative cooling during the day and condensation and heating at night. More uniform temperatures meant less wind3 and weather extremes.
If a water molecule were the size of a ping-pong ball, a condensation nucleus would be a house-size "rock" and a raindrop would be 100 miles in diameter. When a gaseous water molecule strikes that "rock," much of the molecule's energy is transferred to the "rock" as heat. If a somewhat "absorbent rock" is cold enough and the humidity is high enough, the molecule will stick; condensation will begin, and a raindrop will start to grow. The "rock," slightly warmer because of the added energy from colliding water molecules, will warm the surrounding air, causing slight updrafts. Moist breezes plus updrafts would bring enough moisture to "the rock" for it to grow into a water droplet.
That "rock" and its attached water cannot "float" in calm air for long, just as a grain of sand cannot float in still water. Only wind can suspend condensation nuclei, just as only a swift stream can suspend a sand particle. With less preflood wind, condensation nuclei would receive less lift and stay closer to the ground. With more uniform temperatures globally, less air would rise over warmer areas?-again, keeping nuclei and moisture closer to the ground. High clouds may not have existed.
Once water began collecting on nuclei near the ground, the heat of condensation warmed adjacent air, causing it to rise. A microscopic droplet has a large cross-sectional area relative to its volume, so rising, moist air carried the tiny droplet upward. As it rapidly grew, its weight increased faster than its cross-sectional area, so it quickly settled to the earth and often collected other droplets in its path. We could describe this as fog rising from the earth and then settling back to water the ground before rain could form. (Sounds like Genesis 2:5-6, doesn't it?)
It would be similar to morning fog rising on a still lake, but with two differences. First, without polar ice and snow-capped mountains before the flood, less solar radiation reflected back into space, so more of the Sun's rays heated the earth during the day. With more forests, few (if any) clouds, and slightly longer days, the earth absorbed even more solar energy. Consequently, more water evaporated each day. At night, fewer clouds and longer nights allowed more heat to escape into space, causing more water to condense. (Today, clouds reflect back into space 20-25% of the incoming radiation and hold in much of the earth's outgoing radiation.) Therefore, the preflood earth was watered more abundantly and uniformly by daily condensation than by rain today. Furthermore, watering occurred at daily intervals. Unlike today, there were no long dry spells or wet spells, droughts or local floods.
Heavy condensation before each sunrise kept moisture closer to the ground and restricted high-cloud formation. Today, morning fog evaporates soon after sunrise, before the moisture can settle to the ground. With fewer, if any, high clouds before the flood, temperatures dropped more rapidly at night. This, coupled with more moisture in the daytime air, allowed water droplets to grow larger, settle to the ground faster, and be absorbed by the soil before morning evaporation could begin.
The second difference caused preflood fog droplets to grow even faster and larger. Without today's main sources of condensation nuclei (volcanic debris, sulfur compounds from volcanoes, man-made pollutants, lightning-produced fires, sea salt from ocean spray, or dust kicked up by high winds) there were fewer condensation nuclei. Condensing more moisture on fewer nuclei meant fog droplets grew larger and settled faster.
First Rain. If it did not rain before the flood, how did the first rain form at the very beginning of the flood? As explained on pages 102-132, the drops of water falling at the beginning of the flood were not formed by condensing water. Instead, they formed by fragmenting the upward-jetting subterranean water into a spray.
Any credible explanation of the flood should explain why rain probably did not fall before the flood, how the fertile earth was watered, what supplied the rivers, how violent rain4 fell so rapidly at the beginning of the flood, and why the rain ended after 40 days, even though the flood waters rose until the 150th day when all the preflood mountains were covered. Also, if the flood's 40 days of rain formed by condensation, why didn't that rain stop after a few days, because falling rain would have removed the condensation nuclei? The hydroplate theory answers these questions.
http://www.creationscience.com/onlinebook/FAQ217.html#wp1615634