Warm, moisture-laden air from the Gulf of Mexico encounters even warmer land in Gulf States, so the air is heated even more and rises.  At a higher elevation this moist air prodcues clouds and rain. Why?
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You have gravity holding down air at lower elevations due to the mass of the Earth. The higher you rise, the less gas there is contained in the atmosphere (but you probably already know this). As you have less mass and more vacuums in higher altitudes, the need to fill the vacuum becomes much greater. The water starts to fill here and other water tends to coagulate around these base droplets. You eventually find groups of water together that tend to vary based on temperature.
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Clouds are made of water droplets in the air, the water (gas form) rises it cools and condenses to a cloud. Why do you think it gets cloudy when it rains? It's because the clouds are the water!? I don't know about the Sudanese people, plus I don't think that really has anything to do with anything, or something people should worry about, it's just their skin color.
74246
rain comes from clouds. clouds are actually water vapour floating in air. when they become really condensed due to a drop in temperature then they form large drop of water which cant stay afloat and so rain happens.
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As the temperature rises, the any object dilates, increases its volume. Gases dilates the more for a certain temperature variation. As volume of a certain mass of gas increases, the density decreases. The different temperature and density air masses can move and change their position (= convection), hot and less dense air is rising, while cold and dense air is coming down, forming streams of air (or water). As long as the difference in the temperature / density between the two regions exist, the convection remains. All the winds, seaside breezes, streams in the oceans are streams of air / water formed by convection, where the different temperature and density air  / water moves. Ex. seaside breeze: because the sea water heats up slower than the ground, the warmer air above the ground rises during the day and in its place comes a cooler air from above the sea. In the evening, when the ground starts to cool down, the breeze changes its direction towards the sea. The same for the Golf stream, which is a warm water stream towards the north coming from the warm tropical region, and heating up the cooler region of north - western Europe.
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It sighs, moans and howls. It can sweep us off our feet or leave us burned. We share a tempestuous relationship with one of the most powerful forces of nature - wind - but where does wind actually come from?\nIt all starts with the sun.\n\nIt all starts with the sun, says Professor Kimberly Strong, an expert in atmospheric physics at U of T. Solar radiation emitted by the sun travels through space and strikes the Earth, causing regions of unequal heating over land masses and oceans. This unequal heating produces regions of high and low pressure. "The atmosphere tries to equalize those pressures, so you get movement of air from a region of high pressure to a region of low pressure," says Strong. Scientists call this the pressure gradient force, and it is the fundamental force behind wind.\nKimberly Strong\nKimberly Strong\n(Image: Jewel Randolph)\n\nEarth's rotation adds a twist to the story. While wind would normally move in a straight line, the spinning of the planet beneath makes the wind appear to follow a curved path. This is known as the Coriolis effect, which deflects winds to the right in the northern hemisphere and to the left in the southern hemisphere. There is no Coriolis effect at the equator.\n\nThe faster the wind blows, the more it is deflected by the spinning of the Earth. Wind speeds increase higher up in the atmosphere, away from the frictional effects of the Earth's surface. The most extreme examples are the jet streams, which separate cold polar air from warmer subtropical air. Located about nine kilometres above the surface of the Earth, this fast-flowing air moves from west to east over the mid-latitudes and, at 240 km/h, boasts some of the world's fastest wind speeds.\n\nCloser to ground level, local land formations such as mountains and the proximity to water can affect wind patterns. Near the ocean, the unequal heating of land and water can generate so-called "land breezes" and "sea breezes". During the day, the air temperature above the land increases more quickly than that over the water while cooler, higher pressure air from over the water forces its way inland, creating a sea breeze.\nWinds are intimately tied to our weather.\n\n"At night, the reverse happens," says Strong. "The land cools more quickly, while over the ocean, it's a bit warmer," creating a high pressure mass of air over the land that then blows offshore. "Winds are intimately tied to our weather," says Strong. High pressure systems tend to bring clear skies, while low pressure systems, characterized by rising air, cloud formation and rainfall, are linked to bad weather.\n\nHurricanes are regions of extreme low pressure that have managed to build up high levels of energy. As water vapour condenses from warm, humid air to form clouds, it releases a huge amount of energy. That heat further warms the air, creating a positive feedback loop and reducing the air pressure at the surface. Air rushes in from regions of high pressure towards that region, and the combination of the pressure gradient force and the Coriolis effect starts the hurricane's familiar spinning motion. Winds inside a hurricane can reach over 300 km/h at the wall of the hurricane's "eye", near the surface of the water.\n\nTornadoes, unlike hurricanes, are localized storms that form over land. "They're violent wind storms involving a rotating column of air extending down from a cumulonimbus cloud," says Strong. "The pressure inside is about ten per cent lower than the air on the outside, so the air near the ground tends to rush into the tornado. The air streaming inwards moves upwards as well, until it merges into the air inside the cloud. You can get winds in tornadoes of 480 to 500 km/h."\nMantra project\nA balloon launch for the MANTRA project\n(Image: K. Strong)\n\nBut those are gentle breezes compared to the gales found on our planetary neighbours. Ju
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BECAUSE THOSE AREAS MIGHT HAVE HIGH HILLS WHERE THE CLOUDS HIT HARD AND RAIN .MIGHT BE THE LOW AREAS AND FINALLY DUE TO CLOSE TO SEAS
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It's because the tops of mountains has colder temperature than the bottom, that warm air rise up from the earth's heat to the air where they condense, form into clouds around the tip of the mountain is the land which is most coldest. At that position, it is a spot where clouds can be seen most often.
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As a general rule, warm air rises and cool air sinks\nit expands and becomes lighter as the molecules of air move farther apart
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The clouds form when air near the earth's surface is warmed, causing it to rise since warm air rises. Think of a marshmallow in a microwave; as the microwave heats the marshmallow it begins to expand. This is similar to most things, like air. When air heats up it expands and this expanding air has to go somewhere because it is taking up more space, just as the marshmallow does, so this expanding warm air rises. Well, as the air rises it is losing its heat and cooling. When things cool, they condense; think of the marshmallow again as it cools when you take it out of the microwave (it shrinks, or condenses). In a general sense, to give you a brief idea of how clouds form, when condensation occurs, clouds take shape; you must keep in mind, however, that there is much more involved in cloud formation, but this was just to get you thinking and give a place for the lightning to happen.\n\nThe tendency of charges within a cloud is to have positive charges gather toward the upper portion and negative charges in the bottom of the cloud. \nWhen the difference between these charges is great enough to overcome the air's natural insulation, which keeps these charges from mixing, a lightning flash can take place. This charge difference builds up to millions of volts before the stoke of lightning takes place. The lightning bolt actually happens because nature tries to maintain equilibrium, a state of balance between all things. This is why the lightning that you see is a discharge of energy in the form of electricity. \n\nyea..thats the scientific answer to why it strikes...hope u can undertand it....i got it in skool\n\nas for how far away it is\n\ni learned that it comes from the "eye" of the storm or the center, && after the lightning flashes, count mississippi & the number of seconds equals a rought amount of miles you are away from the "eye" of the storm\n\nhope that helps
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That long answer is pretty good, but jumps around alot.... the short and sweet answer has to do with the Gulf Stream.  Its a warm water current that runs south to north along the east coast of the US.  This in turn produces warmer, wetter weather systems for you folks out there year round.  \n\nDuring the winter, the US landmass cools off greatly due to less sun exposure because of the tilt of the earth during winter.  This causes the inland land mass to be very cool.  Since the sunlight as u say is not as direct as it is in the summer, there is less solar heating of the continental US.  Think about it as, taking a flashlight, and shining it straight down...its a small, concintrated area that is lit.  This is like the US getting its light during summer.  Now take the flash light, and shine it at an angle.  The light is more dispersed and covers a wider area, and is less intense in the areas illuminated. Thats kinda like the earth in a sense and how its lit, and the intensity of light recieved during the winter.
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It is just like going to the bottom of a swimming pool.  The deeper you go, the more weight of water is above you.  The atmosphere also behaves as a fluid, but it is a gas.  With gases, the greater the pressure, the closer the gas molecules are to each other which means the gas has more mass per unit volume at sea level than it does at higher elevations.  Temperature in gas is due to the energy of the collisions of the gas molecules with each other.  The greater the number of collisions, the higher the energy (heat).  When gas expands the thermal energy is distributed over a larger volume which relates to a decrease in temperature.  Compressing the gas (example: a cylinder and piston) will concentrate the energy in a smaller space, elevating the temperature.  Which is why diesel engines do not require spark plugs.
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I found this on PBS, there's more on the link as well\n\nScientists say that the two key ingredients needed to make a monsoon are a hot land mass and a cooler ocean. In India, for instance, the land absorbs more heat from the sun than the surrounding Indian Ocean does. This causes air masses over the land to heat up, expand, and rise. As the air rises, it's replaced with cooler, moister, and heavier air from over the ocean. Over India, this damp, chilly layer can be three miles thick! As the cool air arrives, the winds also shift. During the dry season, the winds blow offshore, from land to sea. Then, as the monsoon begins, the winds blow onshore, from sea to land. This phenomenon probably explains why early Arabs named the monsoon "Mausin," or "the season of winds."
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It's mainly due to the effects of ocean currents.  Water has a much higher heat capacity than dry air, so it takes longer to heat and cool.  So climates near major bodies of water tend to be more mild in both the summer and the winter than inland climates.
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Very briefly, the combined effects of the sun and earth's rotation provide the energy that drives storms. Solar heating heats the earth's surface, most strongly in tropic regions, and drives a water transport cycle by evaporating water from oceans, lakes etc. into the air. Convection conveys hot, moisture-laden tropical air toward the poles and cold polar air back toward the tropics. And the rotation of the earth causes these air movements to acquire a rotational component (Coriolis force). When cold air masses meet hot, moist air masses, the cold air may rise up over the hot air, or cold air may pass over hot, wet land, either scenario creating an instability. The overturning of this creates convective vertical air movements which may be augmented by the rotation. Downdraft convection is felt as winds on the ground. Within the storm cell, the hot moist air transfers heat to the cold air through water condensation, and this can bring rain or frozen precipitation. Updrafts of warm moist air form precipitation as the air is cooled due to reduced pressure at high altitude. Adjacent updrafts and downdrafts produce a type of wind shear that can cause aircraft to lose lift and crash.
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The warm front is moving into colder air. The moisture at the leading edge of the front freezes when it hits the cold air causing snow. As the front moves through, the warm air is increasingly higher in altitude which causes the falling moisture to warm up in the form of sleet then freezing rain then rain.\n\nHope this helps!
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It actually has to do with the dryness of the air between the storm and the area just above the ground and the difference in pressure between the storm front and the storm itself. As the super low pressures meet the moist air in the storm, they cause it to equalize rapidly, which, as we know from our nitrous oxide cans, causes the temperature to drop rapidly. This is what needs to happen to form ice crystals, not just ice. As the snow falls to the air close to the earth, it will melt back to rain or fog if the air below is too moist. The UK, like Louisiana and Florida, is known for having extreme humidity levels and low altitude. The air on the ground can be below zero, while the air below the storm (where the snow falls into first) may be wet and warm. Another thing that may affect snowfall is that the pressure close to the ground causes the snow to quickly expand and vaporize into fog and invisible humidity. This is where your altitude comes into play. Lower altitude, higher pressure. Altitude may not matter, though, if the air is dry and cold enough, just below the storm. It snows in some deserts where air is dry (which loses heat easily) and the altitude may even be sea level.
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when the air on the land warms up and rises up,it creates a high pressure due to which the air above the ocean moves to the land .thus creating wind