manhattan. thanks so much, susan candiotti. so this rare halloween weekend snow in the northeast is impacting more than just new yorkers. we have storm team coverage with meteorologist jacqui jeras in the cnn "weather center" and we got chad myers in the field in his own with severe weather center in york, pennsylvania. let's begin with you chad. amazing accumulation since the last time you and i spoke an hour ago. >> reporter: i know. no question. we pick up at least two inches in one hour without a question. we travel a lot for cnn but i usually travel for hurricanes. this is the first time because i vacation in warm spots, this is the first time i ever had a snow brush in my rental car. it was include in the price of the rent alcar because they knew we were going to need it. take a look at the ground. cars literally just drove on this. not 30 seconds ago. it's turning white again. the tracks as this car goes by the tracks are black right where the tire took away some of that snow. i'm telling you in 30 seconds that track will be gone. that's how hard the snow is coming down. pay attention to that tree over there. especially that branch that's kind of bending down to the right. they are really worried about how heavy this snow is and the weight of the snow is difficult to imagine, you've heard in minnesota or alaska where all the snow is the light and fluffy most of the time. i'm going pick up some of this snow because it weighs so much. this is great snowman snow actually. you can make anything you want. you can make sponge back if you want to. we don't know how much snow we're going to get here because the computers are printing out about 1.4 inches of water. so if this was rain and this is not. sometime you can get 10 you 1, multiple 1.4 inches of water to 10 and you get 14 inches of snow. this is so full of water and so heavy we may only be able to measure and multiple by seven so maybe eight to ten inches of snow. see that branch is bending. another four or five inches the branch will break, power lines will come down and hundreds of thousands of people from pennsylvania and maryland all the way up to maine without power despite tomorrow night for sure. >> that's super miserable. snow on the ground and then you have no power. crews are at the ready just in case. chad myers thanks so much from york pennsylvania. jacqui jeras here in the "weather center". it's not just york, pennsylvania. that swath behind you is huge. it encompass as good part of the northeast. >> the i here up in elevation the higher your snow totals will be. it's a tricky forecast. as well as that fine line between the rain and the snow, really the iran 95 corridor is kind of that zone where we're seeing most of that transition so the big cities will get some snow but not going to be foot of snow you'll get into some of the higher elevations. our storm system is intensifying and we're seeing those snow totals increase and winds are beginning to pick up. new york city, for example, we're looking at sustained winds around 20 miles per hour. you've already got 1.3 inches of snow on the ground in central park. that's a record four. you never had that much snow ever in the month of october. 1.3 you may say that's a walk in the park so to speak but that's a record breaking snow. it's a rare event to see something like that happen this early in the game. let's talk about how quick this thing will move on through here. get through tomorrow morning and things will be a lot better pap lot to go through between now and then. our storm pushes up to the northeast. takes the moisture from the atlantic. brings it up and around. mixes it with the cold air. that's why we get heavy snow accumulations as there's high moisture content in place. where we expect the worst of the snowfall totals and keep in mind, we get what we call convected snow where basically it's literally a thunderstorm but the snow is coming out instead of rain. one burst of that can skew these totals to the higher side. the closer to the coast you are the lesser the amounts are. in terms of temperatures, dropping down there near that freezing mark. look at the high temperatures for tomorrow already. we're talking well into the 50s for some of you. a lot of melting will take place very quickly and this storm will be out of here by the middle of the week you will hardly remember it. those people that are traveling you may remember. it's inconveniencing a lot of people. groundstop in atlanta that's because of the winds we're experiencing as a result of that low. groundstop at laguardia. jfk over five hours. six hours at newark and philadelphia. looking at delays around four hours. it's getting uglier by the minute. >> it really is. we have someone on the line who is part of that groundstop at jfk. i'm sorry. in hartford, connecticut, richard roth who is generally a new yorker he's in hartford and stuck on the runway between case for three hours because of a ground stoppage there? >> that's right. not great hearing about travellers. we will remember this day. we're concerned about how long we'll be here on this plane that's on various runways at hartford. i board ad flight at syracuse university, coming from syracuse university at about 11:15, 11:20 this morning and we were very close, first in line to land at jfk and then in the clouds we were diverted. but it took a while to find that out as they were scrambling where to put us. now we're on the ground. the crew is hoping we can get out of here, saying they need fuel and that flights that have been diverted get priority over those that are going point to point. it's very from us straight. i'm worried because we all remember these horror stories of planes that stand on runways for seven to nine hours. they've just given out potato chips. we'll see what happens here. your weather expert, there's a five hour jfk wait. they said jfk, we'll have to see. that's the latest. >> that looks miserable. we're looking at pictures you're not seeing, but we have pictures of downtown to see the accumulation, the ground completely coated there in the park and the trees have lots of accumulation on i want as well. we're hoping richard you won't be stuck there much longer but, you know, we'll try to keep posted and you keep us posted too and hopefully they have more than potato chips on board four all. richard roth, thanks so much. >> one suicide attack today killed several american service members in afghanistan. a car bomb blew up next to a nato convoy in kabul, destroying an armored military vehicle carrying nato troops. live to kabul and cnn's nick paton walsh. your learning anything more about the casualties and whether the fear is more people might be -- more people's lives may be in peril? >> reporter: well, there's a statement released clarifying who the casualties were. they said eight civilian personnel working were killed and five military. not releasing their nationalities. but a u.s. official said all 13 were americans. that subsequently you a pierce to be in doubt because the canadian military have just said that one. dead was, in fact, a canadian soldier. so there's a picture emerging slowly here, perhaps testament to the severity of the blast. a suicide bomber running into an armored bus known as rhino bus. these are heavily armored buses to ferry personnel through hostile areas. you have to tuned sheer amount of explosion required to damage one much these enormous vehicles. >> you know, nick, there's a statement coming out from the u.s. ambassador to afghanistan, ryan crocker, and he's saying this. it's a shock. it makes you mad. it makes me angry. we won't let these guys win. but the reality is, as the troop withdrawal winds down there in afghanistan, clearly this is or those who were causing trouble in afghanistan feel like this is a more porous state than ever and the opportunities seem ripe there for those who want to cause disruptions like this. >> reporter: well, kabul is known as a safe sanctuary in afghanistan for years and in the last six months or so you've seem that characterization eroded by the attack on the british council, assassination of a key afghan piece nancy reagan at iter in the safest parts of the city of afghanistan by different parts of the insurgency. the impact of that has been to many afghans consider themselves less safe. they consider nato's grip over the city is slipping. they have a series of conferences discussing future international role here. trying to establish some kind of peace system if possible. look for a political way to slow down this war. >> nick paton walsh thanks so much from kabul. we're apparently nearing 7 billion people on earth. it could happen this weekend. but one group in china is struggling. and stranining resources. 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(laughing) yeah. get $100 rebate when you buy four tires. 100 bucks! only at your ford dealer. 3 million tires. 11 major brands, fiona's kind-of-nice. i don't know why you're not here. news overseas this hour. three people are dead one of them a woman who purposely blew herself up. in happened in eastern turkey today in a largely kurdish region. the woman was a suicide bomber who detonated herself killing two others and injuring 20 people. it is the latest of several recent extremist attacks in turkey. the syrian military blasting away at homes and buildings with artillery and air strikes. they are trying dislodge anti-government fighters in the city. a human rights group say syrian troops hospital is dead 35 protesters yesterday across the country. every high tide makes the flooding worse in bangkok. the outer suburbs are under water as is much of the country. more than 370 people have died in the most severe flooding to hit thain hit thailand in more than half a century. the world's population will reach a record 7 billion on monday. china is the most populace country. chinese migrants are struggling. beijing has reached 20 million. >> reporter: my grant workers crowd cities like beijing now the world's 13th most populated city with almost 20 million people. the strain on cities across the globe like chinese capital is evident as the world's population reaches 7 billion. in beijing, the number of people almost doubled over the last decade as migrants look for jobs, struggling to make it in the big city. the people in this community earn roughly $300 a month. they say they are the ones that built beijing but don't feel they have the same rights. this is how they live. families living side-by-side in rooms they rent for $80 a month. if all the migrants went back to their home towns life in the city would not go on properly. the economy would not develop as well if weren't here. with costs for housing and food rising many migrants are growing ventful. they don't reap more economic rewards. >> translator: i don't have a place to live. how can i feel rewarded. >> reporter: a couple of days ago the school in this community was torn down and they found out this entire area is also supposed to be demolished so a lot of people have started to move out. as much as they want to stay, these my grant workers don't really have much of a choice. some will go back to the country side but most of them will look for other communities like this one and hope that want they don't have to move at least not any time soon. >> for more information on the earth's population reaching 7 billion just go to cnn.com. with halloween right around the corner it's monday. many people are visiting haunted houses this weekend. hauntworld.com has released its list this year's scariest haunted houses. i want to ask you what is the scariest house in america. a, he in they anetherworld haunted house. b, bates motel and haunted hay ride and pennhurst asylum haunted attraction. c, 13th gate haunted house. or d house of torment and haunted house. stick around and find out after the break. 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[ '80s dance music plays ] [ sighs ] [ male announcer ] choose taste. choose prego. before the break we asked you what is the scariest haunted house in america. according to hauntedworld.com the answer, b, the bates motel and haunted hay ride and pennhurst asylum haunted attraction in philadelphia. it's located at a 200-year-old forest. the pennhurst asylum is located at an abandoned mental institute. so whether you're using an expensive high end camera or a simple smartphone you want your halloween photos to be perfect, so we now have five tips how to take the best pictures and make those costumes shine. mark saltsman is with us from toronto. happy halloween. what's your first tip for taking the best of halloween snapshots? scary. >> yes. i'll put my friend away for our chat. the first tip of five would be for those who own a point and shoot camera, the more affordable pocket sized one, often when you take pictures of the kids they don't want to be photographed and they are out of the scene by the time you get that shot. to increase the shutter time first tip is hold it down halfway. you'll hear a chime or see the lcd screen 0-to go use. that means you're ready to take a shot. then the moment the kids or grandkids do something cute senate and it will take a much faster picture. in other words going from five to ten is much faster than zero to ten if your finger is off the shutter button all together. that's tip one. a basic one. >> for lighting purposes of course for nighttime photos it's good to set that shot, what do you mean? how do you do it? >> i was referring to smart phones. know your flash's distance. try to go out at "twilight" as opposed to later on. for those on a smartphone, you know, the big challenge is the flash's distance if there's a flash at all. if you want to take a picture with your camera know the flash is only a couple of feet away. ten feet for a point and shoot camera or about half that for a smartphone. get in nice and close to take a picture if you're using the flash and make sure they are not standing bay mirror or window because you'll get a reflection kmop your flash's limitations. if you're standing on the sidewalk while your kids are trick or treating at someone's front door your will not get a good photo because the flash will not go that far. >> i got that camera phone but it doesn't have a flash on it. how will i take a good picture. nyad vice? >> you need to use light. that's the number one issue especially around halloween time. lack of light. here's a tip for you if you are using an slr or single lens reflection camera. one of the great things about them is they have a large sensor that can take in more light so they are better in low light conditions. here's a couple of quick tips. what you want to do is increase the iso setting the higher the number the more light will come through the sensor. increase -- slow down the shutter speed but make sure you keep a steady shot so it's not blurry. finally use larger aperture which can help bring in more light. for those that have these fancy cameras you may not need the flash but bump up the iso. >> and what do you do to try to make your pictures very authentic? how can you do that >> i'm a huge fan of candid photos. my kids don't like standing and smiling. it looks fake. i like capturing some emotion on their face or some action that they are not aware of. we share it later on the computer. i show what i captured and they love it. definitely a camera with a decent lens so you can zoom in from afar is ideal for candid shots or halloween. an slr like this, it has those interchangeable lenses, you know, can you swap in a different lens and capture some great shots. of course they are great for soccer moms and hockey dads not just over halloween to capture good shots. definitely use a good lens. >> people are barely familiar with cameras any more. you've been showing us the iphones and, you know, other kinds of smart phones that take pictures. very seldom do you see anyone with a camera. gosh that was like taking us back even though that was a very modern day camera. we got to get used to seeing those again. >> yeah. you know, cameras are in everything. smart phones, slrs. these pocket video cameras are still popular. capture video too over halloween not just still photos. can you have a lot of fun. you can relive it with the kids. it's digital. so you've got future generations that can see what you did in halloween 2011. >> very fun. have some great halloween moments. nice candid moments since that's what you and your family want. oh, yeah that fellow there will do his job this weekend an scare a lot of people. all right. >> that's plan. >> thanks so much. that friend picture over your shoulder that's scaring me. that's only up there for halloween. >> we're decorating for a house party. that's it. >> just check. marc saltzman thank you so much. happy halloween. >> back to you. >> for more hi-tech ideas and reviews go to cnn.com/tech and look for the gaming and gas gets tab. the twitter world is hitting about 5 billion tweets per month. what do you think the most tweeted event per second is in recent history? osama bin laden's death? beyonce showing off her baby bump or the japanese earthquake and tsunami? the answer in just two minutes. they didn't take a dime. how much in fees does your bank take to watch your money ? if your bank takes more money than a stranger, you need an ally. ally bank. no nonsense. just people sense. we asked you before the break what's the most tweeted event per second in the world so far this year. osama bin laden's death. coming in at ten, japan's earthquake and tsunami. coming at number seven and the number one tweet beyonce revealing her baby bump' 2011 mtv video music awards back in august. she got a record 8886 tweets per second. those are our top stories. an early winter storm is dumping a mix of sleet and snow on the northeast and mid-atlantic. some areas could see more than a foot of snow. many trees are full of leaves and that's creating a big problem. causing a lot of concern about power outages already. 23,000 customers in york county, pennsylvania are without electricity. a suicide attacker drove a car bomb into a naturo convoy. no confirmation yet on the nationalities of those nato troops. a puppy survives the gas chamber. this beagle was stoet to be euthanized at an emanuel center. but it didn't work. now he's at a no kill shelter. >> check out this high-speed police chase in texas. we're talking more than 125 miles per hour. the suspect is accused of robbing a gas s