Aaron and eun . We are tracking overnight developments in Prince Georges County now where later today tens of thousands of you will have your water shut off for days. If you live in the highlighted area here on this map, youll be affected. Check it out. Its all because of a water main that is on the verge of bursting. News 4s Megan Mcgrath is in forestville just off the beltway where crews are already working to access that main. Megan, what are you seeing now . Reporter eun, this main is a huge one. Its 54 inches wide. And its in a tricky spot. If you look behind me here, this is the access road that they have actually built overnight. They finished up at around 2 30 this morning. They had to literally go into this wooded area, clear everything away so that they can access this pipe. Were told its about 450 feet into the woods. They finished that work at around 2 30 this morning, and now theyre some sort of a Holding Pattern while they assemble the materials that they need to actually begin excavating and repairing, again, this massive water main. Now, when this is all said and done, when the water is shut off and the water drains from the system, tens of thousands of people in Prince Georges County are going to be without water. Possibly from anywhere from 2tw to five days. Take a look at the map. Some of the areas in Prince Georges County include morningside, camp springs, forest heights, temple hills, oxen hill, joint base andrews as well as the National Harbor development. All of those folks expected to eventually lose water. Once they shut things down, its going to take about 14 hours or so for the water to drain from the system. So folks are being asked to stockpile water. Basically right now while the water is still flowing, put the water into your bathtub, fill up buckets. Not for drinking. They dont want you to drink the water out of the bathtub, but that will be useful for doing light duty things arnold the house for flushing toilets and the like. Now, the work is going to be getting under way later on this afternoon. And people are going to start to notice that the water is going to dissipate and basically go to a trickle and ultimately stop in the next 14 hours after things are shut down. So its going to be a tough couple of days here in Prince Georges County. Eun, back to you. Megan, thank you. Well stay on top of this water outage all day on air and online. Check out an interactive map of the affected area on our website, nbcwashington. Com and get updates on twitter and facebook. New this morning, were gathering more information about another night of violent protests in the wake of the George Zimmerman verdict. This is what cops in oakland, california, had to deal with right now. Theyve had to call in backup when protesters blocked traffic on an interstate there. Police arrested at least six people. L. A. s police chief says you wont see scenes like this in his city anymore. He says his officers will be much tougher on protesters starting today. Cops arrested more than a dozen people last night. This was the Third Straight night of demonstrations. Organizers of a vigil here in washington say their event will be peaceful. It is taking place later this morning at bens chili bowl. Anyone going has to sign a pledge not to be violent. These protests may last through saturday. Al sharptons National Action network is organizing justice for trayvon vigils in 100 cities. Sharpton will give us more information this morning and well post it on nbcwashington. Com. George zimmerman has sued nbc universal, Parent Company of this station, for defamation. The Company Strongly denies the allegations. This could be a tense day on capitol hill. Well see if Senate Democrats made good on their promise to change rules for filibusters. They say theyre tired of republicans using filibusters to block white house nominations. The new rules would require a simple majority. Republicans could retaliate by slowing progress on other matters. They could also impose rules to hurt democrats even more whenever they take back control of the senate. A former aide to congresswoman Michele Bachmann is fighting charges this morning that he stole from bachmanns capitol hill office. Javier sanchez was arrested last week after a hidden camera investigation. Capitol police started looking into thefts there shortly after sanchez was hired. They planted two envelopes with 200 in bachmanns chief of staff office and then installed hidden cameras. They say the video shows sanchez taking the envelopes. He denies he took the money but has been charged with theft and was fired. The ongoing unrest in egypt is forcing a local university to make changes to one of its education programs. Plus Mother Nature forcing thousands to seek Higher Ground as floodwater swamps several villages. No need to rush. Why pushing back your retirement date could give your mind a boost. 5 06. A warm and sticky start to this tuesday morning. Good morning. Im storm team 4 meteorologist tom kierein. Right now near 80 around the metro area. Ill show yo welcome back. You might want to start keeping a close eye on your childs Blood Pressure. A new study out of Harvard Medical School found that the number of children with high Blood Pressure has spiked 27 over the last 13 years. Boys are more likely to have the elevated numbers. Researchers say obesity and an increase in the amount of salty food kids are eating could be behind that rise. Counting down the days until retirement. This might make you want to put it off a few years. A new Study Suggests youre less likely to develop alzheimers and other forms of dementia if you postpone retirement. Researchers study the more than 400,000 former workers in europe. They found that if youre 14 less likely to develop alzheimers if you retire at 65 instead of 60. Interesting study. Some of us may not have a choice. I may be working till im 85. I remember when i got my first Social Security statement at 26. They tell you when your retirement date is. Devastating. Coming up on 11 minutes after 5 00. Heres a live look outside. Believe it or not, the heat index, 89 degrees in the district at this hour. Telling a difficult story for the guy aheday ahead. Indeed. Steamy forecast ahead. Tom . A mild and muggy morning ahe ahead. Some of the suburbs, rural areas in the low to mid70s right now. And for the day, by noontime, should be into the low 90s. And we ought to be soaring to the upper 90s by midafternoon. The heat index, feels like temperature, probably around 105 by the afternoon. Respect, the heat. Im back in ten minutes with a look at how long the heat wave will last. A look at traffic now with danella. Thank you, tom. Lets talk about Prince Georges County and Charles County because im checking local roads, and im not seeing any construction to warn you about, no accidents. If youre traveling along 301 to 5 in waldorf, nice and clear. The trip along pennsylvania avenue clear as well. Lets head over to route 50 from the bay bridge to the beltway, no accidents. No delays. Aaron and eun . Thank you. Feel like somebodys watching you . How retailers are now tracking your behavior and what theyre doing with the information. Plus, pampering your nose. Even while youre behind the wheel. The unusual option thats helping set the mood for mercedesbenz drivers. Welcome back. At 5 14, new this morning, three people were shot in southeast washington. The triple shooting happened just after 12 30 this morning on elvins road. All three men were taken to the hospital with nonlifethreatening injuries. Police have not released any detailed suspect information or a motive in this case. Also new this morning, at least seven people killed, more than 200 others injured in clashes with police in egypt. Police fired tear gas to clear protesters from the streets of cairo. Those protesters then threw rocks at police and set some fires. They were marching demanding the military reinstate president mohamed morsi. He was removed from office more than a week ago now. And safety concerns in egypt forcing George Washington university to cancel its Study Abroad Program there for the fall semester. The University Says eight students plan to study in that country. Theyre now working with those students to find an alternative program. The students also have the option of staying on campus. Following a developing story in panama. The countrys president tweeted officers seized a north korean ship traveling from cuba with, quote, undeclared military cargo. The ship was on its way to north korea when officers stopped it near the opening of the panama canal on the atlantic side. Officers found sophisticated missile equipment hidden inside massive containers of sugar. The captain reportedly tried to kill himself. The ship is being held while the crew is in custody. South korea blames the north for carrying out a cyber attack on its government and media websites. Investigators in the south say hackers targeted filesharing websites to find security weaknesses. They say hackers targeted filesharing websites to find security weaknesses. The attack happened on june 25th, the anniversary of the korean war. People have been evacuated in eastern india because of massive flooding. Take a look. The water has swept away dozens of homes. Monsoon rains have been blamed for thousands of deaths throughout india this summer. Just yesterday authorities announced nearly 6,000 people are listed as missing after last months heavy flooding in the northern part of that country, and they are now resumed dead. A new report on the Massive Wildfire in arizona that killed 19 members of an elite group of firefighters. The wildfire near yarnell was sparked by a Lightning Strike on june 28th. In the report, the Arizona StateForestry Division describes how the fire worsened hour by hour. The report does not address why the hotshot crew was still on the mountain more than an hour after the winds shifted, bringing the flames back toward them. Tshots were warned of the er the erratically changing weather before they were killed. New this morning, lawyers for former illinois governor Rod Blagojevich have appealed his corruption convictions and 14year prison sentence. The democrat entered a colorado prison 16 months ago. Jurors convicted the 56yearold for wideranging corruption including trying to profit from appointing someone to fill the vacant state senate seat left by president barack obama. 5 18 now. Jodi arias will ask a judge to throw out a jurys finding that made her eligible for the death penalty. Prosecutors are deciding whether to put together a new jury to decide if she gets the death penalty. Thats because the jury that convicted her of murder couldnt decide on her sentence. That jury did determine that arias killed her exboyfriend in an especially cruel manner. Thats what todays hearing is about. The arrest of one of mexicos most notorious gangsters will likely not stop the violence along the u. S. mexico border. But experts say with Miguel Angel Trevino morales in custody, it is a big blow to that groups command structure. Mexican marines arrested him. They intercepted a pickup truck with 2 million in cash. Trevino morales was escorted to mexico city under heavy guard. Hes charged with kidnapping and killing 265 people as well as other charges. 5 18 now. We want to show you a cool discovery an astronomer in california just made. See this image . Its the 14th moon orbiting neptune. Astronomer mark show walter discovered it while looking at images from the hubble telescope. The moon is just 12 miles in diameter. All these years later, the hubble still doing some amazing work up there. If you follow nasa on twitter, they get all geeked out about this kind of stuff. Cool stuff. It is cool stuff. It is just about time to check our forecast now. Steamy, hazy, hot, humid, all that. And we want none of it, but tom kiereins here to break it down for us. All that and more. Good morning. Starting off with temperatures right around 80 degrees on this tuesday morning. Incredibly humid as well. Youll just get sticky within minutes after you walk out the door. Right now it is 83 at Reagan National airport. And in the nearby suburbs, Prince Georges County, upper 70s. In the generally low to mid70s in montgomery county. Arlington county, right around 80 degrees. Much of Fairfax County, the upper 70s. The rural areas of maryland, virginia, most locations the low 70s. And parts of the Shenandoah Valley and into the mountains now, its in the upper 60s. And hour by hour through the day today, we will have a rapid warmup. By 10 00 this morning, mid80s. By noontime, the low 90s. And yes, the upper 90s by midafternoon. It may not be quite as humid this afternoon. But still extreme heat. You do need to take care in this extreme heat if you have to be outside. Then a clear evening. Well be back down into the 80s through the evening. And by dawn on wednesday, should be down to the mid70s tomorrow morning. Tomorrow partly cloudy but it will likely get more humid tomorrow and stay very steamy into thursday and friday. Afternoon highs, upper 90s tomorrow with the increased humidity. It will feel above 105 for a few hours midafternoon. And again that heat index above 105 likely on thursday and friday as we soar to the upper 90s. But theres also, i think, an increased chance of maybe scattered afternoon storms. About a 30 chance on thursday and friday. And maybe an increased chance on saturday and again on sunday as well see a fundamental pattern change. I think the heat waves going to end saturday evening, sunday and monday. Afternoon highs should be in the 80s. But we could get some storms around on sunday as well. Im back in ten minutes. Another update. And now lets check traffic with danella. Good morning. Good morning. Well start with the rails. Metro not reporting delays. Mark, two delays on the Brunswick East line. This is train number 872. Also train number 870, dealing with an eightminute delay. Over to i95 southbound at exit 156, dale city here. As you travel southbound, report of a disabled vehicle blocking your right lane as well as your right shoulder lane. Use caution as you travel southbound in the area. Now, shooting over to i66, easy commute for you out of haymarket. Eastbound past gainesville heading towards Prince William parkway, heres a live look at your very light volume. No major delays yet. Still looks really good from Fairfax County parkway. Nice drive time so far. 12 minutes to the capital beltway. A pennsylvania family drove to virginia just to thank some firefighters who saved their loved ones life. David clepper suffered a heart attack earlier this month. He called 911, and firefighters from springfield rushed to help. His children shared a message with them. You guys are reallife heroes, and you saved my dad. You saved my family. Theres no words that can possibly amount to all that youve done for us. The family gave the firefighters a hug. Each and every one of them. The children also wrote some thankyou letters to the crew, but they insisted on thanking those firefighters in person. The royal baby watch is big business for englands bookies. British betting firms say that baby cambridge is drawing a Record Number of bets worth over 1. 5 million so far. That number is growing every hour. People are gambling on everything from the babys sex to the babys name to who will be seen holding the baby first. Im guessing mom on that one. Right now most people are counting on the couple having a girl. As for the name, alexandra, the queens middle name is 64 favorite right now. Elizabeth 71. Diana 121. If its a boy, george is the favorite at 81. Some of the long shots, a 5001 bet on tulissa to elvis. Chardonnay. Really, baby chardonnay . Merlot was after that. And finally, psy at 5,0001. Come on. Well, this morning we are getting a look at the new panda cubs born at zoo atlanta. Take a look at these pictures now. A giant panda gave birth to two tiny cubs. They are the first twin pandas born in the u. S. Since 1987. The zoo has not released the size or weight of the cubs at birth or the cubs condition or the mothers condition. Well try to get those pictures to you later in the newscast. Well, its not just websites that are tracking how you shop. Some brick and Mortar Stores are doing it now, too. Theyre using your cell phone and special cameras to track your movements and moods. Nordstrom used the technology in a Pilot Program last fall. The store says it was able to use the wifi signal from your cell phone to see how long you stayed in a certain section and even how many people walked by the store and who decided to come in. They stopped the program after customer complaints, but bennettton, cabelas and Family Dollar are also believed to be using that tracking technology. Mercedes is offering a new option on its 2014 models that masks strong smells. The car company is claiming to be the first to offer what it called active perfuming. A small container fits inside the glove compartment and becomes a part of the Automatic Climate Control system. There are four scents. Night life. What do you suppose that smells like . Sports. Not good. I know. You want to smell like sports . Downtown and fireside. I was thinking more like ocean breeze or spring rain. You can also substitute your own perfume, cologne, even sha