happening right now, hurricane isaac makes landfall punishing winds and heavy rains have hit several gulf cities tonight. the impact could get worse. >> and here in the bay area a woman is kid mapped and sexually assaulted by a man posing as a police officer. the warning for residents in one normally quiet east bay city. i'm dan ashley. >> i'm carolyn johnson. the rapist posing as a law enforcements officer may not be the only one preying on women in pleasanton of the alan wang is live at the intersection where a police impersonator pulled over his victim. alan? >> carolyn, this where the fake cop reportedly pulled over his victim on august 5th. she was so traumatized being raped at gunpoint she didn't

report it until recently. this is actually the second sexual assault this month. highly unusual for the town of pleasanton. >> it is pretty shocking. i have lived here a longtime, and i haven't heard of any violent crime here. >> news of a rapist posing as a police officer has pleasanton residents on edge. the victim was driving home around 3:00 a.m. when he flashed a light and let out a quick chirp. the victim pulled over on seal avenue south of bernal avenue where the suspect displayed a fake police badge. >> he order -- ordered her to step out of the car and she complied. she walked back to his car at which point he handcuffed her and put her in the back of the car. >> police say he drove her to a secluded road 1k3* sexually assaulted her. he is a white male between 20 and 30 years old with a muscular build. he is between 5 foot 10 and 6

feet tall, 185 pounds and he wore a dark button down shirt and police-style hat. >> it is scary. i don't know how i would react in a situation like that of the. >> things like badges, uniforms and handcuffs can be bought on-line, but official police lights have a steady red light in the blinking sequence. >> always call 9-1-1 and they can confirm if the stop is legitimate. >> this is the second sexual assault in pleasanton. on august 19th, the woman was uh agod and robbed at the park. police released this sketch of the suspect, and they believe he left this hat behind. detectives are unsure if the two assaults are related. the police impersonator is described as wearing a traditional police hat, but pleasanton police say it is rare you will see them wearing the hats out on the streets. alan wang, abc news. right now louisiana is under assault from hurricane

isaac after the storm made landfall near the mouth of the mississippi river. heavy rains are pounding lafitte near new orleans. it could dump as much as 20 inches of rain. 200,000 homes and businesses are without electricity because winds knocked out power lines. the mayor of new orleans assured residents their city is secure, but emphasizes they are in hunker down mode. now more from new orleans. >> hurricane isaac made landfall anding paing 80 mile per hour winds. it is whipping up the surf and dumping heavy rain and causing flooding along the gulf. and it is only going to get worse. >> this is a very dangerous storm. loss of life is a very real possibility. >> this is not going to be over quick. >> this image shows how it has grown and intensified and become more organized. life has come to a halt in places like gulf port,

mississippi. buildings boarded up and residents hunk erred down. no planes or trains or school and power outages expected. >> for your own safety and the safety of others use common sense and don't go out and put yourself and others in a dangerous position. >> shelters are filling with those who heeded warnings from all levels. >> now is not the time to tempt fate. now is not the time to dismiss official warnings. you need to take this seriously. >> in new orleans, the levies that failed during hurricane katrina exactly seven years ago will get their first big test since the upgrade. >> we will probably get street flooding from the rain and heavier winds and the lights going out, but we are prepared for all of that. >> officials stress eye swrk -- isaac will impact more than the coastal communities. >> the gusty winds and heavy rains picked up shortly after isaac made landfall earlier in the evening.

and this weather is expected to stay like this all night. reporting in new orleans, abc7 news. >> it is nasty and we have been tracking isaac all evening long. >> you can see what it looks like right now. bands of rain, heavy rain from hurricane isaac hammering the new orleans coast. it made landfall earlier this evening as a category one hurricane around 5:00 this evening. i want to show you observations from the area. we have gotten reports of moderate rainfall from new orleans international. winds 45 miles an hour and gusting to 61 miles an hour. visibility is obviously low due to the heavy rain and the wind. moderate rains and winds gusting to 66 miles an hour. it is the heavy rain combined with a storm surge. so far shell beach with a storm surge of 11 feet.

tornado watch box ropes for most of the states. a category one, still hurricane isaac and winds maximum sustained at 80 miles an hour. track together west northwest it is going to move at a snail's pace over the next few days and weakening to a tropical storm by thursday and heading up to the north as a tropical depression eventually. the heaviest rain along with a storm surge willied to severe flooding -- will lead to severe flooding. >> sandhya, thank you. isaac forced the gop to change its plans for the start of the republican national con veption in tampa. convention in tampa. but tonight the r nc what on -- was on track. mark matthews is in tampa covering the convention for us. mark? >> chris christie is the keynote speaker tonight, but he delivered. it was ann romney's speech that got the biggest reaction here at the forum. app romney took the stage --

ann romney took the stage saying she didn't want to talk about politics, but about the love. >> i want to talk about the love for a man i had at a dance. >> the son of a governor was determined to be successful. >> i can tell you mitt romney was not handed success. he built it. >> she called women the best of america. >> i love you women. >> downplaying her own wealth, she talked about the economy and how it has made life harder. >> it is the little things that pile up to be big things. the big things, the good jobs and chance at college and the home you want to buy get harder. everything has become harder. >> ending by saying, you can trust mitt. >> he will take us to a better place just as he took me home safely from that dance. give him that chance. give america that chance.

>> with this mitt romney came on stage and embraced his wife. the convention hall rocked. new jersey's governor followed with a fiery keynote. >> they believe in pitting unions against teachers and educators against parents and lobbyists against children. they believe in teachers' unions. we believe in teachers. >> and he got the convention hall cheering. >> we have a nominee who will tell us the truth and willied with conviction, and now he has a running mate who will do the same. we have governor mitt romney and congressman paul ryan. he will be the next president of the united states. >> but it could not compete with the woman who stole the show. >> and tomorrow night it is paul ryan's night. and we are working on a story about the democratic war room. who is fact checking the fact checkers? that's a story we will have

tomorrow. reporting live from tampa, mark matthews, abc7 news. >> thank you, mark. and mark will be reporting live from tampa all this week. follow him on twitter at matthews abc7 or go to the abc7 news facebook page. and we will be streaming live abc news coverage of tomorrow's rnc events on our website, abc7news.com and beginning at 4:00 p.m. look at what we want to show you here. an suv plowed into a 7-eleven in sausalito. you can see where the ford explorer ended up lodged in the store. police looking what caused the driver to ram into the store. the good news at least no one was hurt. flight delays stretched into the evening because of a computer glitch. passengers faced long lines after the computer system and the website crashed this afternoon. th marks the latest in a series of problems since united and continental erg inked in march. the airline grounded flights for two hours.

>> everyone offered to go to other places. i am not really sure what happened. >> the air palestine -- the airline promised they would not charge extra fees because of the computer met down. a dangerous outbreak at a northern california hospital. what could be to blame for sickening newborns. >> and the muddy aftermath left behind by a massive watermain break. what happened to dozens of residents tonight? >> coming up on "nightline" i will take you to the center of the storm as hurricane isaac slams into the gulf coast. and terry moran has all of the day's headlines

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now. san francisco families are waiting for word that they can get back into their homes tonight after a massive watermain break. it happened at sunnydale and tomaso court. abc7 news reporter john alston is live in the neighborhood. repair crews have been there for what 12 hours or so? >> yes and they will be here

another hour to get the water reconnected. behind me the workers have been at it all day trying to restore water to 14 evacuated homes. electricity has been shut off as a precaution and residents were told to leave. this family was living in their car instead of their home after a river of water gushed down tomaso court. 14 homes had to be evacuated for most of the day. >> oh my god, oh my god. >> her grandson took cell phone video from the water and helped his elderly grand parents reach dry land. >> we just calmed them down, me and my brother. we walked down the street to where the church is at. >> the church is next to the our lady of the visitation school which was swamped when the transmission line broke just after 11:00 a.m. and it spewed tens of thousands of gallons of water down sunnydale avenue. sky 7hd captured videos of

children using a picnic table as a makeshift bridge to get up and over the deeper water that flooded the schoolyard. classes won't resume until early september. >> they will have to re-do everything. >> a san francisco water department ticial says the 42 inch line appeared to separate at a joint. it was a project finished eight months ago. there was paving in the area, but it is not known what caused the watermain to fail. water pressure was affected for two hours. >> we did feel the pressure drop. not only here in san francisco, but daily city and brisbane and possibly as far south as south san francisco. >> for 14 families, the inconvenience has lasted much longer jie. right now we can't get to our house. they allowed my mom to get her medicine and dad to get his medicine, but we can't get to the house. >> he and his parents are staying with loved ones. they provided free hotel rooms for 22 other residents. in san francisco, john alston,

abc7 news. >> thank you, john. two newborns are undergoing treatment after becoming infected with a highly contagious bacteria. the spread of mrsa began in the neo natal care unit. doctors say 20 other newborns were exposed to the antibiotic bacteria. they have not known signs of infection. it is a staph that can cause fever and chills. the staff is investigating whether poor hygiene is to blame for this outbreak. after taking a lot of heat, the san ramon city council reversed course a short time ago and voted to save dozens of trees. some residents want to remove 84 sycamores that line the center divide of bollinger canyon road to widen the lanes. activists urge the city leaders to spare the trees. they plan to take another measure to improve traffic safety. a very warm day, but the things are changing.

>> sandhya patel is here with the accu-weather pore cast. >> and it will change in a big way, but not immediately. you still have time to enjoy these views. this is a photo sent to you report. it is stinson beach and gorgeous weather photo there. i want to show you another one. this was submitted by leigh a buys bicycling to work, and he said this was my view going to work and coming back. i will show what you it looks like from that perspective. we have clear skies across the bay area. there are only a couple of patches of fog. the fog has been a stranger, but not for long. half moon bay with a patch or two of fog. 58 in san francisco. most areas are in the 50s and 60s. antioch 71 degrees. here are the highlights. fog returns to the coast overnight. mild to warm again tomorrow. much cooler weather is coming your way friday and saturday. get ready for a big dropoff in the numbers. not immediately like i

mentioned. the fog that is well off the coast will fill in overnight tonight. when you head out the door for the morning commute tomorrow you will notice the beaches will have some areas of fog possibly a patch or two around the east bay. when you head out the door it is a mild start. low 50s to low 60s. if you are getting the little ones off to school you may want to add an extra layer for the morning of course they can shed it. when you see what is coming here it is another gorgeous day for your wednesday. 5:00 a.m., fog near the beaches and the fog starts to pull away. it really burns off quickly. we will enjoy another nice sunny afternoon. coastal highs will be in the 60s. mild weather for your wednesday. here are your south bay temperatures. san jose 83 degrees. same thing for cupertino. los gatos 86. nice looking day on the peninsula. blue skies and that's all i can give you. 76 in san mateo and 62 on the coast in pacifica. daily city, downtown san

francisco just a couple degrees lower than today. 68 degrees and gets you to the north bay. mid80s. santa rosa, calistoga, 83 in novato and east bay communities, 74 degrees in berkeley and up to 77 in oakland. low 80s castro valley and union city. inland areas are running warmer than where you should be this time of year. 90 in livermore, 90 for antioch, 89 in pittsburgh, 87 in danville and for the monterey bay, 75 in santa cruz. upper 80s morgan hill and gilroy. accu-weather seven-day forecast, low 60s to low 90s. a little cooler on thursday, but much cooler weather friday, saturday, upper 50s coast side. trough passes through and really knocks our temperatures down. this sunday through tuesday the temperatures hillary cover. any updates on isaac and our local weather. >> thank you. the medical mishap that cost one transplant patient a new kidney.or

>> closed captioning brought to

an ohio hospital is reviewing transplant procedures after a nurse accidentally threw away a kidney headed for a donor recipient. >> they say the organ was tossed in the garbage by mistake. >> it was ruined in the trash and couldn't be saved. the medical center has placed two nurses on administrative leave while it brings in an expert to investigate. >> there are 140,000 people nationwide waiting for a kidney transplant, so there are none to spare, especially to throw in the trass can. >> you wouldn't think that could happen. >> oops. >> larry beil is off tonight. >> yes, and pretty good pitching in the a's and giants. a's trying to shut out cleavland, and have you ever seen a baby giraffe run? that was the sight to

the pitcher is back with the giants after serving a 100 pf game suspension after a second positive drug test. bruce bochy said there was never a doubt about his return saying we all mick mistakes. the astros were one big mistake, but they gave them a pain. pablo sandoval can't handle this pop up, but crawford bails him out with a diving grab to end the inning. quick reflexes by the giants short stop of the the astros take the lead, but bochy made all of the right moves. it is a pitch hit down the left field line. he is running from first and hustles all the way around to tie the score. and then with one out and another pinch hitter, hector sanchez comes through with a bloop to center field.

that brings the go ahead score. romo closed it it out with the perfect one- -- one, two, three inning. the giants come back to win it 3-2. the dodgers lost sos their lead in the west is now three and a half games. not much drama in cleavland as the a's blank the indians for a second straight night. moss drove in three runs, two off this blast in the third. it will disappear into the trees. his 14th of the season made it 14-0. he threw six shut out innings to get his 11th win. chris carter wept three for five and he delivers a two-run shot. it is his 12th of the year. the a's remain tied with baltimore. the cal football team kicks off this saturday by hosting nevada. the bears do not want to see a repeat of what happened in reno when they lost 52-31. he had five touchdowns in the

contest. he is now with the 49ers, but they run the potent pistol offense. >> you need to make sure you can sell all phases of what's going on with the run game, with the quarterback, the pass game, the pitch. it is important to be disciplined with what is going on and keep your eyes disciplined and take care of your assignment and not try to do more than you are supposed to do. >> at the u.s. open serena williams was playing under the lights. she needed less than an hour to knock off vandaway, the same person she beat for the bank of the west title. this was match point and williams cruises to a 6-1, 6-1 victory and also winning the defending men's champ joe caw very much and -- djokovic and it was brought to you by river run caw casino. >> everybody calls her the favorite to win this, but the

computer has her seeded fourth. >> you think she will win? >> i don't see anybody challenging her. >> thanks. "nightline" is coming up next. i'm dan ashley. >> i'm carolyn johnson. thanks for joining us. abc news continues tomorrow morning starting at 4:30. >> and we are always available to you at abc7news.com and facebook and twitter at abc7 news bay area. >> we will be back tomorrow evening. in the meantime, we hope you have a great evening. for larry beil, rick quan, sandhya patel, thank you for watching. appreciate your time.