there is no one hurt but catching the men is a priority. and is extremely dangerous. >> more brazen a robbery is, this person is not wearing a mask. >> and police are asking that if you have information contact police or west contra costa crime stoppers. you can find the number and information on our web site. in nick smith, awc 7 news. a san francisco neighborhood is drying out from a massive water main break. you can see this sink hole left behind by the appreciate of a line that burst this morning. the neighborhood is on highway 101 near the cow palace, we have live team coverage. abc 7 news reporters are on the scene and heather receipts begin with you we're one block west. they're working now on cleaning out the pit and this is apparently very deep. they had to wait for pg&e to deenergize a high voltage line on top of the broken pipe. and this age of the pipe is only six to nine months old so age will not be a factor as far as determining the cause of the break. mud and z.buckled pavement mark the spot where a pipe broke this morning. >> focus is getting water service back to roughly about 14 properties out of service now. >> nearly three hours, water gushed unchecked from a pipe running east down sunnyvale. this flooded before spill fog the bay. our lady of the visitation school took the brunt of the damage. >> rushing like a river. rushing by the fence it went down these stairs. a huge water fall and rushed to the field. just kept coming and coming. higher and higher. >> first, teachers tried to block water and move students but gave up and finally evacuated them using picnic tables to get across the water. and they walked to the playground and miguel came for his grandchildren after his daughter called him to help. >> this is when she went walking down the street. and i don't think it's possible. they're atrade of walk. >> and there is the investigation into what caused this break could take longer. >> it's too earlly to tell. we know what broke and it's we haven't been in the pit yet, anyway. >> so right now, still, 14 homes are evacuated because they have no water and power. p.u.c. hopes people might be tibl get back in as earl lays tonight. this 270 students are getting a unexpected and perhaps unwelcome extension of summer vacation and will be back in the middle of the week. >> and here is another perspective there is intersection less than a mile from the bay shore line this, shows how far the mud flows into the bay. as far as we know, there has been no environmental damage. let's go back out live now and there is an awful lot to clean up. >> there is. very to tell you there is many streets open. the american red cross is helping families in those homes where they have no power or water. and they are victims of something that is quite speck tack lor to see. prus were sweeping way piles of mud, picking up silt and dirt. you can get an idea over the main break of how light an area has been impact bitd river flow. there are 14 houses evacuated because there is no power or water. one business had been impacted is l and t cabinets. the mud hitting these crates. >> this is a big river. next thing we know, we came out and it's flooded outside. >> and there is is a question about who is going pay for clean up. most houses escape muddy mayhem and sidewalks and curves had plenty of it. >> my house is okay. i didn't see anything going on so far. >> and some cars got muddied by the flow. carlos was out to clean them off, house hoesing down the sidewalk. how bad was it? >> it was bad. my motor home was right here. water came up this high. and at least, wow. it was over there. and this is wiped out with water. >> there are a number of rep tifz here they do clean ups and they got no takers. and there is just going to be a few weeks of inconvenience who people live in the valley. >> in abc 7 news.com there is a photo gallery and the unedited individual yoi from sky 7 hd. >> mitt romney is now the presidential nominee of the republican party after a roll call vote of the national convention in tampa, florida today. the vote of the california delegation was announced this afternoon. and this is ann romney's big night. >> it s we've heard just about an hour ago they were at the hotel in their room having dinner, she'll be appearing here after 8:00 tonight pacific time. she's told reporters that her speech will be heart felt and she's expected to speak about mitt romney in terms of being a father and a husband and a grandfather and making him more independent to women voters. ann romney came to the hall to get a feel for the stage and arena. tonight will take the podium to talk about her husband in hopes of breaking down the impression mitt romney is a bit of a stiff. >> if only men were voting republicans would win every election. >> that is darrell is sch a's way of ak nolging polls romney is having trouble acknowledging women voters. >> common candidate, i don't see there is anyone who didn't just go oh. >> sasha from mill valley is talking about todd a kin's comments on what is caused legitimate rape. >> this makes the rest of us look bad. and i don't know anyone that doesn't think that that man is an idiot. >> i think some women need help. so they take obama to help with them. they can get a government assistance. >> and there are alternate delegates. >> they need to listen to words from ann romney. she's a wonderful woman. she knows how important it is to with led by a man who is a wonderful man. >> most told me it's the economy. >> the republicans who want to get people back to work and you know want to make this country started again applies to men, women, people of all genders and lace races, whatever. >> and in a tent camp called romyville, this green party candidate says republican women are right. it's the economy. >> my message to them is that romney and ryan don't give a damn but, eernl. they don't know what it's like to punch a time clock or to worry if you're going to be able to pay your mortgage. >> there are two about as far as you can get in tampa. >> coming up at 6:30, john boehner spoke to delegates today and what he had to say about efforts to take back the house and ron paul came to the arena today. some of his delegates not very happeny and threatening a floor fight. >> and of course, he will be reporting live this week. you can follow him tonight on twitter for instant updates. and go to abc 7 news facebook page. be sure to stay with us tonight. abc news will be live tonight at 7:00 right after this newscast. >> still head here tonight the airport commuter crash delaying a flight to hundreds of people. that is just at sfo. another costly breakdown tonight at united. >> abc 7 news shows us some of the people and weapons that were rounded up in a gang sweep. there is a crack down on violence. >> there is hurricane isaac made land fall in new orleans. i'll show you the affects of the storm in just a moment. >> a marin county couple comes within minutes of falling for a costly scam. coming up,or >> closed captioning brought to you by mancini sleepworld. united airlines is work on getting its flights to land on time and here in the bay area and around the country, the problems created long lines at the airport. some computer systems were down two hours. the airline says the cause is still unknown. >> there is everyone asking to go to different places so i'm not sure what is going to happen. >> united has been struggling since combining systems in march. the airlines says it will charge fees for passenger who's want to cancel or rebook their ticket. >> police are seeking a man who sexual assaulted a woman while impersonating a police officer. he is in his late 20s maybe early 30s. police say he pulled a woman over at 3:00 a.m. by sounding a siren and flashing a light. after showing her a badge he ordered her out, handcuffed skmer placed her in the back seeft his car he assaulted her after driving to a secluded area this, happened in the early morning of august 5th. the victim did not return it until several weeks late year police in the south bay use a series of gang sweeps to try to gain control of the soaring homicide rate in san jose. officers plan to keep pressure on gang members. abc 67 news is live at the police department with the story. >> there are police telling us the sweeps so successful, they'll continue them throughout the end of the year. but civil rights groups tell abc 7 news there are concerns over these sweeps. there are several hundred people demanding on end to the murder streak. police had taken giant steps to do just that. >> there are three day operations aimed at stopping the outbreak of gang violence. the spike in murders couldn't have come at a worse time. number of officer on the force at the lowest in years. the department was able to mobilize officers from numerous units and authorize overtime for cops for the sweeps. police officials say this paid off. officers arrested 26 gang members and confiscated two guns and knife autos we're confident the activity resulted in no homicides. >> there are eight killings during 11 days this month. and this is are gang members targeted because police say almost 40% of the killings are gang related. police say this is what they were doing when the department was at full force, being pro active and putting constant pressure on gangs. the operation which is nicknamed gangs all the time pleased the mayor. >> the gang members know they're likely to be stopped and that keeps guns off the streets. >> the coalition for justice in the a.accountability is worried during stops and search autos we're concerned with increased violence in the community. >> this might be racial profiling but they fit a description of someone in a certain car or wearing a hat a certain way. >> the department is authorizing 800,000ses today pay for more overtime to keep sweeps going and is hiring 64 new cops and will be on the streets when finishing their training. >> talking about the weather forecast we're watching what's happening on the gulf as well. >> there is spencer christian tracking isaac for us. >> radar image shows hurricane isaac, a category one has made land fall now in the new orleans area. and is affecting a wide path along the gulf coast. and in addition to affects of the hurricane ask the tropical storm there are boxes indicating tornado watches for a wide portion becauses you know outer bands are often producing tornadoes. there is winds 80 miles per hour, continuing over the next 24-72 hours taking it inland and will weak dwron a tropical storm and a tropical depression. this is going to travel into parts of missouri and illinois. rainfall projections for the areas hardest hit, anywhere from 7-14 inches of rain over a wide area of the lower mississippi valley. you can see the storm has potential to produce wide spread flooding. back in the bay area there is no clouds at the coast yet. it's still warm. 87 fairfield and antioch. 83 in concord. 80s in mountain view. highlights, fog return together coast. mild to warm again tomorrow, cooler weather settling in on friday and saturday. starting at 11:00 tonight and during overnight fog coming back to the coastline but not pushing inland. there are low temperatures mainly into mid to upper 50s and low 80s in -- 50s this north bay valleys. 5:00 in the morning at which point there is a little bit of fog near the coast that will burn away from the coast and another sunny day tomorrow and 60s at the coast to about 90. and there is locations behind tomorrow, 68 in san francisco. 77 in oakland. 90s in livermore and antioch and fairfield. upper 80s in parts of the north bay and near monterey bay, highs into 70s near the bay. here is the accu-weather forecast. pulling ut sharply and saturday, sunday, most inland loks will not reach 80 degrees friday and saturday but warming up sunday and begin warming up. by next week, temperatures back into upper 80s and low 60s on the coast thank you, spencer. >> sky 7 live over a sink hole a pg and e crew found today. you can see they're filling it back and repairing the damage. >> pg&e doesn't know what went wrong here, there is repair work in this area that appears to have caused this cave in. >> and there is a sweep of an oversized homeless officials cleared out one of san francisco's biggest homeless encamp manies today. according to a patrol it's more than 70 around the bay area. most of them in san francisco. >> this is rats and that kind of thing. it gets overrun this, looks more than that. it's a cleaning. >> 40 people were living in the camp. some accepted help from city services and they plan to put up tents to keep people out now. advocates say pushing people out will not solve root cause autos governor brown angered laboreeders today and believes it will save taxpayers millions of dollars for years to come. most now receive retirement benefits z rules will cap how much money workers can receive. >> and and for now actual reason. >> and the governor said today we have lived beyond our means and the chickens are coming home to roost. lawmakers have until friday to act on the reforms. >> and when we come back, more on isaac. slowly gaining strength in the gulf as he rekindled memories of hurricane katrina. >> tonight, mark matthews had a chance to talk with john boehner today about giving up the gavel for nancy pelosi. >> a warning about the conartists trying to take advantage of the unemployed. stay with us. hurricane isaac made land fall touching the extreme southeastern tip of louisiana near the mouth of the mississippi river. the storm still 90 miles from new orleans but heavy rains pounding the area. you can see in this video how strong the waves are. there are 129,000 homes and businesses without power in louisiana. isaac is also pounding the coast, it's a category one hurricane with winds up to 80 miles per hour. moving slosly -- slowly that. can cause severe flooding from mississippi to louisiana. >> we had dodged a bullet this, is not a category three storm but a category one is plenty big enough to put a big hurt on you. >> there is about some that decided to ride out the powerful storm. >> light may go out but we're prepared for all of that. i'm not really in the mood for leaving. >> hurricane katrina i felt it. it was severe. this one i don't feel it too well. >> isaac arrives a day before the 7th aefs of hurricane katrina. since that 2005 disaster the government poured $14 billion to fix up levy autos isaac is no longer a threat to tampa, florida republicans convened to nominate mitt romney. >> convention about to enter prime time. >> abc 7 is live in tampa tonight. and how big of a role is the california delegation playing there? >> so not being a swing state you'd think we'd be in the dark. just left of center stage there are pictures of the delegates that got pretty good seats. and there is one describing a mood as surprisingly hostile to mitt romney. are you getting that sense there? >> no there is not necessarily the tea party as a block and he got a reception, people happy to see him. some delegates not very happy with an agreement giving nominee control of the delegates them threatened a floor fight that didn't happen. >> and john boehner spoke today. >> he does. and we talked about gender gap, republicans having trouble attracting women voters then, he told the california delegation this about nancy pelosi's efforts to take back the house. >> and the only way to get the job back is pull back some of my gold, stone pounds. and cold stone? maybe it was ice cream. anyway that is the latest. >> thank you very much. >> abc 7 news will continue live coverage at 7:00 here on abc 7 also streaming live on abc 7 news.com. you can follow mark on twitter at matthews abc 7 or go to our facebook page. >> and president obama is not conceding this week to republicans in terms of publicity and attention but campaigning in four important swing states. there is a stop at iowa state university today with the first of three college campus appearances on the schedule today and tomorrow. he's trying to reignite enthusiasm among young people that helped him win, telling this audience mitt romney was written -- has written him off as a lost generation. >> and interest there are many americans looking for jobs but be aware. conartists are trying to take advantage. >> one man with b.to be swindled out of hundreds of thousands of dollars. >> and this is one of the oldest scams in the book. predators target elderly citizen was job offers that were phony. >> thark f thank god for you guys. i was ready to go out of the door. >> dd is telling us how she and her dear friend came within minutes of falling for a costly scam. >> we're exposed to rippoffs. left and right. >> this began when the 8-year-old peter received an e mail offering a job as a secret shopper, getting paid to visit stores and secretly rate service .s. peter jumped at the chance. >> i'm retired and it would be kind of extra money. i can conversion with people pretty good without sending a note i'm a spy. >> later receiving this letter with a check made out to peter for an impressive amount of money. >> astonished. 1940ss. that is a lot of money. >> i was willing to support peter in go together stores to do transactions. >> the letter instructed peter to go online, type in a job code and get assignment saying he should deposit the check then wire 760ses today someone in greece. and 680ses today someone in spain. peter could keep the rest for himself. his job to rate the two money wiring companies. >> i was toltd to go to the bank. >> peter deposited the check. the money appeared to be in his account. peter and dd about to walk out of the door rs and wire money. luckily, dd had doubts. >> and you're giving money, now you want it out of the country? it doesn't add up before leaving the house dd called 7 on your side. and we slammed the brakes on this hoax. >> on your side said, wait a minute. anything like that, money out of the country it's some this and that, thank god for you guy autos we told the couple this is an old scam. the check is a fake. and if peter wired money it would be his own. it would be lost forever. sure enough a week later his bank notified him the bogus check came back, unpaid. $1900 was never there. and thankfully all they lost was a little pride and a little time. >> if you're ever in doubt, give a shout. >> being from switzerland we zront these things. i'm apt to believe people that -- because i think i'm an honest man. i think other people will be, too. >> you need to get her phrase on our web site. >> and now, many scams operate the exact way whether a job offer, or a letter saying you won a prize there. is a real-looking check then ask you to wire some money elsewhere. and there is you can be sure the check is fake. if you get such a letter don't fall for it but do contact me. in an emergency situation give us a call. >> when in doubt give a shout out. >> coming up next there is a traffic helicopter force scary moms for a tv helicopter crew. another chopper notified the pilot smoke was pouring from the engine. the pilot decided to land immediately in a densely packed part of l.a. and found an empty parking lot and landed last night. firefighters believe a crack in the engine sparked the fire. and this crew had been covering a search for a gunman. >> residents fighting to save 80 sycamore trees and leading the fight is a former mayor. the trees located in a median in canyon lakes drive. residents lost trees but the city wants to remove them and saying it's a dangerous thorough fare. >> we have had eight accidents in that area. cars went off the side of the road. >> if you widen roads people will speed more. this is common sense. >> there are five alternate plans put together by engineers. and there is an overflow crowd expected. >> still coming up a warning from yosemite. another tourist died from a rat virus. >> a bay area officials at yosemite national park warning 2000 visitors about possible exposure to the phone shallly deadly hanta virus. two people confirmed dead after staying in the popular curry village camp ground in june. this reporter has the latest developments. >> there are cabin by cabin, officials inspecting 91 signature tent cabins. this spokesman says so far all victims stayed here from june soth through june 20th. officials say staying in four to five cabins close to one another. >> they weren't in the same cabin but in this area where we're standing now, within 150 feet of each other. so we have been able to narrow down the possible exposure to this area. >> this signature models are the up scale tents insulated with dry wall. since the latest fatality, rangers have started handing outboro churz, warning visitors about the hanta virus. park officials say there are details every camper needs to know. >> we're trying to tell people that if there is mouse droppings to notify the front desk needly. not to do anything to clean that. that is a problem. >> crews are retro fitting cabins after being inspect bid adding new wood panels and billing up openings but this cabin was shored up doug says it's still not mouse proof. >> the mouse going in zp out of the corner. and it was running around under our beds at night. we'd just watch it. he woke up nlt middle of the night and had to sit up because one ran over him. >> crews are staying in the area where victims did. he and the group say they aren't too worried about health concerns. >> i come from detroit. and i stand a better chance of getting murdered in detroit than killed by mice in yosemite. for sure. >> the latest death is raising some concern but not enough to scare apanda away. she paid the trip from utah. >> i thought about bringing a kennel. but i forgot that. is all i thought about. >> officials say doctors are being put on aert but unfortunately the signs mirror that have common flu. >> and there is a hougs made famous by the movie "the social network". the new round of entrepreneurs living there gave us a tour of the home where facebook founder mark zuckerberg spent the summer in the company's earliest days. >> this programmer is just rolling out of bed. >> and he works for a start up and works all the time. >> everyone has different schedules. days lasting about 16 hours. >> the ceo explained it's a social network. >> this is a apps that are made friend to fraind. >> it's working out of the same house where mark zuckerberg and a crew spent the summer. >> everything is like it was in 2004. >> this is where he sat. >> there are four bedrooms unless you count a mattress. >> nobody makes beads in one makes beds. no. >> there is a pool. the zipline is no longer there. now, there is fun in the form of nerf battles and forcing guests to try on this iron man helmet. but they just need a good place to eat, skpleep write code. >> i think that is something to do with windows or architecture, maybe just karma. >> but there is just like facebook they're subletting it for the summer for a group who has to move back in at the end of september. >> and good look. >> another nice warm day and there is a wide raempk of highs from the coast. and there is a oakland, 75 tomorrow. brentwood, 91 from coast to indland. tomorrow looking like this as we give you a larger picture. there is sunny skies koflt to inland. there is north bay, will be warm. highs 84 in santa rosa. here is the accu-weather forecast. there are more warm days and conditions turning cooler friday and saturday. and there is a warm up again, and a word about hurricane isaac, it's made land fall near new orleans. i'll track it for you again. and this could produce wide spread flooding and pourer outages. >> and itwill won't strengthin anymore? >> thank you. >> and don't forget you can now wake up to the sound of the abc 7 news alarm clock app putting news, weather and traffic at your bed side this morning. >> and coming up giants three-game series with houston off to an unusual start. >> i hope you can join knee at 9:00 km then over a cliff a man walkways after his car plunges off a cliff in hawaii. >> then at 11:00 a super bug outbreak in a hospital. how dozens of newborns were exposed to a infectious strain of bacteria. that is coming up at 9:00 and 11:00. >> and in sports look what the cat dragged in at the giants. >> wow. >> that is rough. >> there is a surprise that is right. the reliever is back on the roster, and the pitcher has been serving 100 game suspension following a second drug test. the manager says there is never any doubt saying everyone makes mistakes. the giants opened a series tonight in houston. there is hot potato with a baseball. but there is a diving grab. look again. check out reflexes. astros threaten in the 4th wealth a runner on second. there is some pop with a solo shot to right field. gets 78th of the season. >> this is oakland 13 games over 500. brandon moss with a blooper to left. there is moss getting all of this. and this will disappear into knees in center field. there is in the 4th, tommy malone strikes out josh donald to get out of a jam. and there is now in the 8th, oakland leads. cal football team hosting nevada. a 10 mafl point favorite. and there is just about unstoppable totalling 329 yards of offense. the golf pack blew out the bears. there is nevada with three receiver s. >> is like triple options. what you need to do is cancel faces of what goes on with this pitch. so... it's important to be displined with what is going on. keep your eyes disciplined. season kicking off on saturday. there is a recap of the opener and that can with seen on after the game following the prime time contest between alabama and michigan. and there is an easy win over paolo. and andy roddick took care of ryan williams. there is a a win in straight sets. women's side, venus williams got to have a slow start. venus not seeded but went on to win. her sister is now playing coco sandhyaway. and there is computer, i don't know. >> whenever she plays see teams to win. >> and that is this edition of abc 7 news. >> and there is live coverage coming up at 7:00. >> we're streaming it on abc 7 good morning! wow. want to start the day with something heart healthy and delicious? you're a talking bee... honey nut cheerios has whole grain oats that can help lower cholesterol. and it tastes good? sure does! right... ♪ wow. delicious, right? yeah. it's the honey, it makes it taste so... ♪ well, would you look at the time...