when the nothern hemisphere is expericencing winter?
548915
You got it, when the northern hemi is in winter, the southern hemi is in summer.
730297
The Old Farmer's Almanac says your mid-December will be snowier than usual, and Christmas will be one of this winter's coldest periods. Check out their long-range forecast here:\nhttp://www.almanac.com/weatherforecast/us/2
73074
Last answer is correct. During winter, the earth is physically closer to the sun and during the summer, it is furthest. \n\nTilt is key. Its important that not only is there a tilt on the earth, but the direction of that tilt is not altered during the rotation of the earth around the sun. \n\nThe Northern hemisphere is always tilting away during the winter, and towards the sun during the summer. The tilt of the earth is 23 degrees. So lets say you're at 45 degrees lattitude. During the summer, the sun will rise to 45+23 (68) degrees because the tilt is towards it, and in winter, the sun only goes to 45-23 (22) degrees. There is a big difference between the sun going up 22 degrees and the sun going to 68 degrees.\n\nWhen the sun goes to 68 degrees, it is more overhead, and the earth therefore receives more of its rays. During winter, light rays are striking obliquely, and hence do not warm the earth as much.\n\nThis is why there are less variations of seasons around the equator, where the sun is almost always directly overhead all the time.\n\nAnd this is why seasons are reversed on the southern hemisphere. When the northern hemisphere tilts towards the sun, the south is tilting away.
19875
winter equinox\ntomorrow
48692
The tilt of the planet causes uneven heating of the Earth's surface,during the summer months,the northern hemisphere is closer to the sun,causing warm weather,as the Earth orbits the sun,it maintains this tilt,until the northern hemisphere is farther,causing cold weather.Consequentialy,when the northern hemisphere is experiencing winter,the southern hemisphere is experiencing summer and vice versa.Spring and fall are the time in between these transitions.
50509
The ice would melt and ocean levels would rise causing some flooding along most coastlines and possibly upto several miles inland.  As for the earth axis, the axis of the earth rotates and one complete rotation takes about 26,000 years.  This rotation will 'flip' the seasons at some point in the distant future (so Christmas will be in summer).  This axis rotation causes most shifts in the patterns of warm and cold, dry and wet climates.  Don't buy into the tree hugging hippie crap that SUV's cause polar ice to melt, the proof just isn't there!
978616
As far as the globe - there is the Vernal Equinox (Start of Autumn in Northern Hemisphere; start of Spring in the Southern) on the 22nd of September.\n\nWinter starts in the northern hemisphere on December 22nd (start of summer in the southern hemisphere)\n\nSpring starts in the northern hemisphere on March 22nd (That is the first day of autumn in the southern hemisphere)\n\nSummer starts in the northern hemisphere on June 22nd (First day of winter in the southern)\n\nHas to do with the tilting of the earth on it's axis.
1091939
Like night and day, the northern half of the planet has the opposite season from the southern half. And along the equitor there's really not much season at all!\n\nOn the other side of the planet from you (east and west)  it's 12 hours difference in time, yes? So if it's noon where you are then it's midnight there.\n\nAnd on the opposite side of the planet from you (north and south) the weather is like six months difference ... middle of the summer for you is middle of the winter there.\n\nIt's all about where the sun is, as earth spins (day/night) and orbits around (summer/winter).
720718
Actually, the sun is at a focus of the ellipse not at the center, so there is only one closest and one farthest point. \n\nBut that has nothing to do with summers and winters! In fact, the summer in the northern hemisphere is when the earth is farthest from the sun! The tilt of the earth's axis is what makes the seasons. As we go around the sun, the northern hemisphere is sometimes pointed in the general direction of the sun (giving summer then) and at other times it is pointed away from the sun (giving winter then). When the northern hemisphere is having summer (because it is pointed toward the sun), the southern hemisphere is having winter (because it is pointed away).
497884
The Sun is slightly closer in January at perihelion (147.5 million kilometers) and slightly farther away in July at aphelion (152.6 million kilometers).  Earth’s slightly elliptical orbit is not responsible for our seasons, however.\n\nEarth’s axis is tilted 23.5 degrees with respect to the plane of our orbit around the Sun.  Summer occurs when one’s hemisphere is tilted toward the Sun; winter when it’s tipped away.  Thus, seasons in Australia are reversed relative to North America—summer in Melbourne is winter in New York, and vice-versa.  (I’m sadly aware of that effect, since I’m travelling to Melbourne in a few months.)\n\n\nRyan Wyatt\nRose Center for Earth & Space\nNew York, New York
966258
We will have a mild winter,but not as warm as January 2006.Last year\nit was so mild we hardly even had a winter.
343236
Summer and Winter in the Northern Hemisphere, i.e. for countries north of the equator are seasons that occur, along with Spring and Autumn (or Fall) as follows.\n\nSpring : March 21st to June 21st.\nSummer : June 22nd to September 21st.\nAutumn : September 22nd to December 21st\nWinter : December 22nd to March 20th.\n\n\nHowever the seasons are seen differently. Most people see Spring as starting in mid-March until mid June and Summer from then until September but Autumn until late October with Winter from then until the following march.\n\nIn the Southern hemisphere, south of the equator the seasons are reversed by six months so they would be\n\nAutumn : March 21st to June 21st\nWinter : June 22nd to September 21st\nSpring : September 22nd to December 21st\nSummer : December 22nd to March 20th.\n\nIn Australia Christmas Day is usually spent having a barbecue on the beach.\n\nThe reason for this difference is due to the Earth tilting as it orbits the Sun so that every six months the two poles become 'reversed' as far as closeness or proximity to the Sun is concerned.
1012414
the more north during the winter months you go from the equator, the longer the it stays dark, there is one day in a year in North Pole where it will stay dark for 24 hours, the same holds true for the southern hemisphere during its respective winter time.
685064
Winter = Canada 2010\nSummer - China 2008 (Bejing)
379504
Solar heating is more pronounced at the equator where rays are vertical and closely spaced. At higher latitudes there is less heating, rays less dense, more oblique. The tilt of the earth's axis introduces a further, seasonal variability. Seasons occur in opposite months of the year in opposite hemispheres. Winter in the northern hemisphere is simultaneous with Summer in the southern hemisphere.\n\n--assume you are looking at earth broadside, equatorial view, for the following, throughout (no polar views)--\n\nEQUATORIAL HEATING\nAir masses at the equator have an eastward inertia. As they are heated, these masses expand and rise. Keep the inertia in mind as you read all of the following.\n\nConsidering first the northern hemisphere, as this high equatorial rising air pushes to the north it has a higher speed eastward relative to the earth's surface. This is because the eastward inertia of a mass of air varies at different latitudes. \n\nAir at the equator is moving faster, along with the rotating earth, than is air at higher latitudes. Identical for both hemispheres, north and south: Air at higher latitudes has less eastward speed.\n\nOn the equatorial surface cooler air moves in from the northeast and the southeast. This air is moving west because it has less eastwards inertia as it approaches the equator, from higher latitude. These are the Trade Winds, blowing east to west on both sides of the equator.\n\n\nNORTHERN HEMISPHERE\nAs the hot, rising air from the equator cools at higher latitudes and sinks in the latitude 30's region, some moves further north and eastwards, some moves further south and westwards.\n\nSOUTHERN HEMISPHERE\nAs the hot, rising air from the equator cools at higher latitudes and sinks in the latitude 30's region, some moves further south and eastwards, some moves further north and westwards.\n\nThe northern and southern hemispheres are mirror opposites.\nWe see that these movements are caused by the heating effect of the sun. \n\nWe see that in the northern hemisphere cold air moving south veers to the left (westward) and warm air moving north veers to the right (eastward). The accounts for the clockwise highs and counterclockwise lows.\n\nIn the southern hemisphere, cold air moving north veers to the west and warm air moving south veers to the east. The net effect here is counterclockwise highs and clockwise lows.\n\nIf one has a hard time picturing this, just remember, highs and lows spin in opposite directions. Lows are clockwise in the southern hemisphere and counterclockwise in the northern hemisphere.\n\nWinds blow from high to low pressure. The denser the isobars (lines of equal pressure) on the weather map, the greater the wind speed. Highs are the directors, lows are the actors.* This means the hurricane will have a fit wherever it is guided by high pressure.\n\n*Rodewald, German meteorologist\n\nThis explanation says little about weather from 30 degee latitudes further north or south. To describe the entire globe in detail is impractical here. The principal forces involved in your question have been described.\n\nFor a more detailed explanation, I recommend OUR ATMOSPHERE, by Theo Loebsack, A Mentor Book\n\nYes, every time I think about all this, my head spins. Try to think very carefully and hard about it occasionally and it will become somewhat clearer.\n\nThe important thing to remember is what is happening on the ground where most of us live and work. Since LOWs are the big actors, remember they are counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.\n\nA very good exercise, especially for sea goers, is to picture the wind directions you would experience from various compass points surrounding a ferocious low. Do this remembering which hemisphere you are in, north or south. Understanding that could mean survival. You want to avoid everything, to the extent possible, but especially the eye wall. The innermost winds are the most horrific, w
32571
Because the earth is tilted on its axis, we have seasons.  The seasons vary the length of daylight depending on the season.  When it is summer, and the days are long, in the northern hemisphere, it is winter in the southern hemisphere and the days are short.\n\nIf you think about this, you will realize that it can't be true of the equator.  Where the two hemispheres meet, the days don't vary by season.  The farther you are from the equator, the greater the length of the day (or night) -- so at the poles the sun deosn't set in mid-summer or rise in mid-winter.
640560
It doesn't really follow that winter occurs when the planet is furthest from the sun. If the planet's axis is tilted, then the coldest weather occurs when a particular hemisphere on the planet is turned away from the sun. In fact, in modern days Earth is at "Perihelion" (closest approach to the sun) about January 3, which is Winter in the northern hemisphere. It is furthest away (Aphelion) around July 4.\n\nOther planets will be closest and furthest away at various times, based on their orbital characteristics.