On the water supply. And beyonces bomb shell, exploding social media with a remix of flawless. Taking on the infamous incident in the elevator, whats behind the lyrics, and the new pictures overnight that show queen bey still rules the world. And good morning, america, hope you had a good weekend. We know Michael Strahan did. Lets take a look there, being inducted into the nfl hall of fame. What a moment for him. And they even got the gap right. In that bust. We know robin was there too. Having fun together as well. Spending time on his big night. Michael strahans big smile on full display. Congratulations to him. It is a busy news morning, begin with the massive wall of water and the nowdeadly mudslide in Southern California, stranding thousands in an instant. Brin brandi hitt has more. Reporter take a look at the wall of mud thats devoured this driveway and spread up to the front door. The fastmoving waters and debris sweeping the area so quickly, not everyone had enough time to escape. Overnight, flash flooding sending mud and debris through Southern California, swallowing cars, campers and vans. Unbelievable. Reporter thunderstorms brought flash floods, as much as 4 inches falling in one hour, causing a wall of debris to cut off access to two mountain towns. Leaving at least 2,000 stranded. Including 500 adults and children at a summer camp program. One person was killed after swiftmoving floods swept their car away. In forest falls, a wall of moving mud as high as 15 feet and up to 75feet wide. Watch how quickly the flood appears. Thats the sound of trees snapping. And seconds later, this torrent of water. At least five rescued. Nearby, this car trapped underwater. Rescuers breaking the windows, making sureno one inside. This vehicle empty, a small shred of hope. This is the worst since at least 1969. Reporter that water is desperately needed elsewhere in the state. More than a dozen fires currently burning in northern and Central California. There is an active search and rescue operation underway to find anyone else who may have been swept away as they clean up this massive mess. Thank you. And more flooding in the forecast. Six states in the threat zone. Ginger is tracking it. Spreading from california to can idaho, and in new mexico this morning. Watching for rainfall at 2 inches per hour at times. And look at bulls eye. Anywhere from Central California all the way to jackson, wyoming. Up to 3 inches. Much more coming up in the nations weather including the fire forecast. Now to the ebola emergency. The second american aid worker infected begins her journey home today. As her colleague is Getting Better under close supervision. Steve osunsami is at emory hospital where they will be treated. Good morning. Reporter that second is expected to leave liberia this evening our time and arrive here tomorrow midmorning. The world is waiting for Nancy Writebol to return. Soon to become the second person ever to carry the ebola virus on to u. S. Soil. On saturday, her colleague, dr. Kent brantly was the first. Thats him in a full biohazard suit, walking into the hospital. To see him walk, which hadnt even occurred to me, was just unbelievable. Reporter his waife, amber, not allowed to hold his hand, but saw him. Flying him from africa was complicated to say the least. He was moved in a speciallydesigned isolation pod like this one, and an airtight tent good for one patient at a time. Which is why they are making two trips. Today writebol will travel to bangor, maine, before landing at dobb bins air force base outside of atlanta tuesday afternoon. We have the expertise to safely care for these patients. Reporter they contracted the disease treating african patients. The cdc next door is on alert, taking every precaution, confident they can keep the staff healthy and the disease from spreading. The bottom line is we know how to stop it. Reporter this has been quite a local story as well. The families here concerned that such a deadly pathogen being brought in. But those fears misplaced, the cdc just down the street has much more deadly bugs safely on lockdown. And joined by a professor of medicine and dr. Rich besser. We heard Steve Osunsami talk about the anxiety in atlanta. Are you facing any kind of a brushback from patients or families at the hospital concerned this could spread . We have been hearing some concern about safety, and frankly we view that as an opportunity for education. And rich besser, we heard from dr. Brantlys wife that his condition is improving. And he received an experimental see rum before he left africa. What can you tell us about that . There was discussion about one dose of an experimental serum coming, and he said to give it to his colleague. We dont know if this is the same, we dont know what exactly it was. Look at it closely, because as you know, theres no known drug treatment or cure for ebola. And patients can seem to be improving and slip back. When will we know when someone is safe to go out in public . Yeah, they will be monitoring him closely. Whats normally seen in a case of ebola, you have the acute symptoms, you are so sick, and patients who are going die, its a downward spiral towards death. Usually not able to a walk and slip back. Im sure theyll monitor his liver and kidney function. They tend to get hit hard. I have talked to people who have treated ebola patients, but over the acute illness, they are able to go home, and no family members pick it up from the e o exposu exposure. The body learns to fight the infection. Thats what youre looking for. Since theres no drug, the immune system has to fight that. The signs are promising, and he is improving. Also promising that his colleague is well or stable enough to travel to the United States. They are going to have to assess her again, the journey can be ardous. The team will have to do the assessment. Can she make the journey back to atlanta . Thank you both very much. And now to the water emergency that has left hundreds of thousands of people without tap water in toledo, ohio. S to ins were found in the water, and they are waiting to be told its safe to drink again. And on the shores of lake erie. Reporter good morning, there is a state of emergency here in toledo, ohio. 400,000 people unable to drink, cook or brush their teeth with the tap water here for a Third Straight day. All of this after toxins from an algae bloom got into the citys water system. The algae bloom so big, visible from outer space. Fueled by fertilizer off farmland into the lake. So poisonous, it can cause liver and nerve damage. Prompting cleveland, detroit and buffalo and chicago to closely monitor or run extra tests on their own supplies. The great lakes providing Drinking Water for 26 million people. But harmful algae can pop up anywhere. It hit me hard. Reporter this man was paralyzed from washing his dog who went swimming in a lake four years ago. 2012, harmful blooms in 21 states. I believe the number now is up to 30. Reporter back in tooe lee doe, lining up in cars and on foot to get safe water. To take baths and wash dishes. We have a couple cases of water to drink. Reporter but the bottled water just isnt enough. This morning restaurants and businesses closed again. Even some hospitals canceling surgeries. This sign is all about algae, telling people not to go in the water if it looks like spilled green paint. There is a ban on swimming right now. The good news is it looks like the water crisis may soon be over. Test results have been improving, the mayor expects to update people this morning. All right. Spilled, green paint. I agree. And over to dan harris with the mornings other top stories. Good morning, everybody. Start with new video of the devastation caused by a massive earthquake in southwest china. Showing some of the 12,000 homes flattened. More than 400 people killed. But that death toll could rise sharply. Rain is making the search for victims extrachallenging right now. And breaking overnight, israel calling a temporary ceasefire after a harsh rebuke from the u. S. Government. The u. S. Was appalled by the attack on a shelter, calling it disgraceful. Ten civilians were killed. A second person died from an apparent overdose of drugs at a concert in maryland. They were at the mad decent block party. The club drug molly was available. 20 people went to the hospital. And off the coast of washington state, a 25foot boat up in flames. The owner clung to a life raft as the boat split apart. He held on for an hour until a coast guard chopper arrived. He is being treated for hypothermia. And a flight, the woman running toward the cockpit, and the Flight Attendant was punched in the stomach, we do not know what set her off. And an occupational hazard. Two window washers hanging when their platform fell into a vertical position. They waited patiently in the heavy wind for several minutes until help finally arrived. Lots of crashing and sprinting at the sprint cup race on sunday. Check out the domino effect, 17 cars smashing together in this pileup at pocono raceway. Nobody was hurt. Dale earnhardt jr. Came away with another win. And finally from the Everybody Needs a hobby file. This is a guy from the uk pushing a brussel sprout up a mountain with his nose. Three days to finish, required a lot of logistics. There was a special face mask and an extralarge brussel sprout that wouldnt fall in cracks. Before you write him off as bonkers, you are free today, he raised money for a hospital. He is going to push a parsnip down broadway with his thy. He did raise money. Im going to write a note. You see the other hikers . Whats he doing . Wow, thats a big brussel sprout. Okay. Well. We are going to move on to a growing mystery at one of americas most popular horse tracks, del mar in Southern California. Ten horses died during season. Big changes are coming at the track. Mara schiavocampo has the latest. And away they go. Reporter this morning, major changes at californias famous del mar racetrack after a streak of dangerous and in some cases deadly falls. It was very sad. They put the tarps up and euthanized the horse. This horse, chattering gambler died of an apparent heart attack, the tenth to die since the racing season opened at del mar three weeks ago. Three from natural causes, the others put down following catastrophic injuries on the brand new turf. When you have ten horses dying, and cant pinpoint one thing or another, it is a mystery. Reporter track officials shut down the turf course until saturday to soften it and consult experts. And the synthetic surface will be replaced for next year. Its always about safety. Reporter but track officials and experts say it may not be the track at all. A lot of rush to get a horse here. In combination with the pressure and the high purses, some horses may be running that arent ready. Reporter still this could be a publicrelations nightmare for the track, a huge Tourist Destination and hosting the breeders cup in 2015. We will continue to follow that story. Meanwhile, what a weekend for Michael Strahan. Joining footballs alltime greats in the hall of fame. As he highlighted so beautifully in his speech, this improbable honor was made possible with a lot of hard work and family support, and robin was there for it all. Call it a pinchme moment for our pal, Michael Strahan. This has been the best weekend of my life. I will thank you, thank you. Reporter adding a few title to his evergrowing resume, living legend. Our Robin Roberts was by his side for it all. You are here in canton, ohio. You used to come here. Yeah. You used to come here. Yeah. Now people will come and see you. Im going to have to come back every year to see myself. How does that happen . I dont know. Robin, i sat here and i think how am i here . Life is about lessons. And my life is improbable. I am an absolutely improbable hall of famer. You may have thought it was improbable, and thats the word you used over and over. But i dont think your mom and dad thought that. Its amazing, they never did. My dad would say when, when, when, not if. Now as an adult, he always believed. He was a grinder, he made me the same way. I remember being in the gym, and i didnt want to be there. And my dad looked at me and said, son, one day itll pay off. And, dad, i got to say it paid off. It really did. Reporter those lessons guiding michael in his favorite role. The most important motivation for me throughout my career and my life is these four people, my babies. My beautiful babies. And of all the titles that i have, the most important title im really im most proud of is Michael Strahan, your father. Reporter and with the end of his speech, the beginning of the party. Going to get our dance on. Reporter one giant celebration for our number one giant. Congratulations, michael. Thank you, baby. Thank you. Enjoy this moment. Enjoy, enjoy. Looks like they did enjoy. Yeah. Michael, a giant congratulations from all of us here at your Good Morning America family. He will be back on wednesday for hug opinions. Looks so emotional. Ginger, final forecast in the northwest. You see fire over here and over there, and today unfortunately we have the variable winds. The red flag warnings for parts of northern california, oregon, and high Wind Warnings to the east. The local forecast in 30 seconds, but the select cities brought to you by the university of phoenix. Reporter thanks, ginger, good morning, everyone, im chris sowers with this accuweather update. We have this accuweather update, were dealing with patchy dense fog, some of it is reducing visibility to less than a mile. Keep the beams on low. Clouds and sun, 86 degrees, warm and sticky with feelslike temperatures 80s, 90, it will be muggy out there, but cooler by weeks end. And coming up on gma, the shocking story of a woman arrested for murdering her husband of 32 years. Why police say she fakeds a Home Invasion. And a possible sighting of the oregon mother, hundreds of miles away. And beyonce blowing up social media with a remake of flaw less. What shes saying about the elevator incident. Less. What shes saying about the elevator incident. Flawless. What shes saying about the elevator incident. What shes saying about the elevator incident. Youve got a lot of people cheering you on. Download the app and start getting rewarded today. At the corner of happy and healthy. [ male announcer ] give extra. Get extra. Remind me to tell her happy anniversary. [ cortana ] next time you talk to caroline, ill remind you. [ siri ] oh no, i cannot do that. Oh, and remind me to get roses when im near any flower shop. Sure thing. Remind you when you get to flower shop. I cant do that either. Cortana, its gonna be a great night. [ beep ] oh wow thanks for the traffic alert. I better get going. Now that is a smart phone. Oh, wait its cause you make me smile osteo biflex® with joint shield™ nurtures and helps defend your joints so you can keep doing what you love. Whatd you guys do today . The usual the usual [ male announcer ] osteo biflex, ready for action. [ male announcer ] osteo biflex, vocce vanduccos when your favorite food starts a fight fight back fast with tums. Relief that neutralizes acid on contact. And goes to work in seconds. Tum, tum tum tum tums and now, try great tasting tums chewy delights. Yummy. To you, theyre more than just a pet. So, protect them with k9 advantix® ii. Its broadspectrum protection kills fleas, ticks mosquitoes too. Right now, save up to 10 on select k9 advantix® ii flea tick products. Whats up, george . Massage chair. My little indulgence. Dunkin french vanilla swirl, my little indulgence. Indulge in the sweeter, creamier taste of dunkins new french vanilla and hazelnut swirl coffees and lattes try one today these are from dunkin. Granny i have a life, you know. [ phone rings ] oh, thats for me. Ooh dunkins chicken biscuit sandwich is a tender breaded chicken filet on a southernstyle biscuit. Grab one for 2. 99 today. America runs on dunkin. Good morning, im tamala edwards, 7 26 on this monday august 4. Lets look at the roads and go over to karen rogers to look at traffic, good morning. Reporter good morning, tam, we see dense fog at lime kiln pike, southbound traffic, you can see off in the distance, reduced visibility, its more apparent as you look south and east of the city of philadelphia. Give yourself extra time with that. We have an accident in chester county, east coventry township. Bethel church road and old church road. Watch for this, police will help you around it. Looking at the big picture slow speeds on the schuylkill expressway, 9 Miles Per Hour, down to the single digits. Its heavy from the boulevard past belmont. You can see beyond that, that westbound traffic very slow at this point, tam. Thank you, karen. Lets go over to sky sky and take a live look out across center city you can see we have cloud cover and its gray and theres fog in places, lets finds out more from chris sowers good morning. Reporter all right, tam, the fog will be lifting and well see sun and clouds, warm and sticky, 86 degrees, feelslike temperatures 88 to 90. Actual air temperatures will close in on 90 tomorrow. It will be muggy out there, feeling like the low 90s, small chance of popup shower or thunderstorm. Better chance for wednesday as a cold front slides through. 87 degrees ahead of the front. Temperatures will drop like a rock, it will feel like september again, 82 thursday, 83 friday. Well sends you what really happened inside that elevator . You remember it. Beyonce, jay z, solange. Now over the weekend, beyonce speaking out in a new song called flaw less. All kinds of social media, and especially after nicki minaj tweeted it out early sunday. Its what happens when bill theirs get in an elevator. Just stop talking about it and now were talking about it. Do you think the timing is a coincidence . Theres a reason shes a billionaire. And a possible break in the missing oregon mother of two. A couple reportedly sighted her and her car hundreds of miles away from her home. Strange case. Plus the mysterious death of a former American Idol finalist, Michael Johns. Dying a day after visiting the doctor and complaining of leg pain. Sad. And we have a big gma live event this morning. We have a 33yearold mom, a teacher named casty, and shes daring to step into the gma time machine. There it is, very hightech, made of solid card board. And she will lose ten years in 60 minutes with our glam sq