Jeff ranieri has the details. We want to look at the hottest temperature today at 96. Hotter for tuesday and also on wednesday. With that said. Heat advisory for 99 of the bay area from the north bay to the santa clara valley. And at the coastline, temperatures 95 to 100 degrees tuesday and wednesday. I think the number one hottest location tomorrow will be the trivalley also portions of the south bay. And heres a look at how the south bays going to heat up. We start in the low 60s. Then by the noon hour shooting up to the low 80s. Thats where we should be for our highs in the south bay. But by the afternoon, temperatures in the low to mid90s. A quick jump on the temperatures tuesday. If you are going to the coast to escape the heat, dangerous rip currents will be in effect. Well have details on who will hit 102 degrees coming up. Also a look at where you can stay cool during the heat and the one business seeing a surge in demand. Thats just ahead. Not Just Innovation and ipos theres audio side to the Silicon Valley. You could be living near or onl toxic waste site. Tonight we have results and a map that you can use to find toxic sites. of sites that contain toxic chemicals, much of it dumped in the early days of Silicon Valley. You have heard of some of the higher profile toxic dump sites. But we have added up all the little sites as well and put them all on an interactive map for you to uncover what could be lurking in the ground in your neighborhood. From the 1960s to today, its hard to imagine a downside to Silicon Valley. Hightech contributes 1. 5 million jobs and 500 billion doll dollars a year. Reporter these are the pictures and press clippings from the early days after representing dozens of microcrip workers, she cape to realize that the boom times also carried another less positive side. The dark side of the legacy is the stuff left behind. Reporter stuff as in hundreds of thousands of pounds of toxic chemicals that her clients worked with eh day in microchip clean rooms, chemicals that were often dumped down the drain or worse. Early, early days, i think it wasnt unheard of for stuff to be literally poured out the backdoor. Reporter stephen hill is with californias Water Quality control board. These are unauthorized discharges from years ago. Things that were considered industry practice that we now know caused problems. Reporter while there are 23 epa superfund sites in Silicon Valley, hundreds of unofficial sites are also scattered all over Silicon Valley. The materials can end up in the water and therefore be a problem in Water Quality. Some of them have the capacity to come back up. Reporter and now for the first time, nbc bay area has pieced together the locations, 518 different Chemical Spill sites in Santa Clara County alone. It shouldnt be swept under the rug. Reporter the idea of a map showing all these toxic spill sites at once was the brain child of a stanford trained civil engine who formed his own Company Called terradex to educate companies, governments and citizens about contaminated sites. It is a bit of the dark side of Silicon Valley but for me its an opportunity to remind Silicon Valley that even tough issues, they can make good. Theres nobody who has responsibility for all of these sites. Reporter lenny siegel. What is important is the combination of the map and the fact that there are tens of thousands of People Living or work or going to school above plumes. Reporter we used the data from government sources and terradex we mapped the sites ourselves. Take a look at what we found. When we put it together the purple plots show the enormity of the problem. We can see how much of the valley has been impacted. Reporter we found daycares, elderly care homes and schools on top of or close to where the chemicals are in the soil. Some people say i dont want to know about it because its going to lower property values. Im sympathetic but i dont want to buy that property not knowing that there is a potential that the kids could be exposed. People dont know the number of open cases out there. Reporter the santa clara Water District says that all these chemical plumes in the ground are separate from Drinking Water supplies. Of course we want to see the sites cleaned up and we want to make sure that contamination is contained and stable so that it doesnt impact other properties or deeper Drinking Water aquifers. Should the residents with worried . No. The regulatory agencies are doing their job. Reporter but its a dark legacy that well live with for a long time. Years, decades, before you reach those low standards. The consequences of putting others in harms way, you dont get a do over. Reporter go a our website, www. Nbcbayarea. Com, click on the investigative page and find our story and youll find this map. You can maneuver, just drag and click all around Silicon Valley. The purple shapes identify the sides. Click on that and learn about each site. There is a layer that shows elderly care facilities, daycares and Old Tech Companies from 1983. You can zoom in or zoom out, find your neighborhood and find out what spill sites are near you. A very good resource. If you have a tip for stephen, give us a call or send us an email. You can smell the smoke for miles but experts say the air quality was never impacted by the landfill fire in the south bay. Investigators are trying to figure out what sparked the blaze in san jose. Heres the trouble. The closest water source was a half mile away and that created all sorts of problems for firefighters. It took seven hours to put out the blaze. A sunnyvale man who chased off burglars got more of a confrontation than he bargained for. A man confronted two men who were breaking into his house. One of the burglars ran off but the homeowner caught up with the other. They bought fought until that burglar pulled out a gun which went off. The burglars did manage to get away in a Mercedes Benz suv, a red newer model with red lettering on the back window. In palo alto, there is a spot where rent is less than 1,000 a month. Is it a trailer park but these families might be forced out. 30 million is at stake here. This is a sign of the times. Reporter it certainly is. On average, residents here pay about 700 a month plus utilities for the space that their mobile home sits on. Its one of the only Affordable Housing option left amid multimillion dollar homes. Residents and supporters of the Mobile Home Park are in the fight of their lives. Its upsetting. Reporter theyre trying to save the citys only Mobile Home Park. A developer has offered 30 million to the owners, who have run it for three decades, to make room for luxury apartments. Tenants are crying just thinking about that feeling. Its our home. Its where i grew up. Reporter a city appointed administrator is listening to three days of testimony and weigh whether the sale of the park should go through and whether the compensation to 117 mostly latino households is fair. The owners Attorney Says that all compensation offers meet the city requirements. It is the legal right of a private Property Owner in california and specifically a Mobile Home Park owner to close, convert, or cease the operation of a Mobile Home Park. Reporter but with nearly 100 children living in the park for many its not just the money but being able to keep their children in the Palo Alto School district where test scores exceed the staidwide average. She wants to stay here because of the kids and she wants them to come to these schools because they are good schools. Reporter the hearing continues every night through wednesday. A decision is expected weeks after that. Live in palo alto, nbc bay area news. Trouble on the home front for mark zuckerberg. A luawsuit linked to his house. And a radio legend goes missing. Its not something wine lovers want to hear. And good evening im meteorologist jeff ranieri. Were tracking unusual coastal heat tomorrow. Tomorrow, halfmoon bay, 84 degrees. And who and when will we hit 102 degrees . Is there an elk in your bed . With sleep number, now theres an adjustment for that. You can only find sleep number at a sleep number store. And right now all beds are on sale. Yep, all beds, starting at just 649. 99 know better sleep with sleep number. New at 11 00, facebook founder facing more than just an unfriending. Mark zuckerberg is being shoed by a bay Area Real Estate developer. As part of a deal, zuckerberg promised introductions and referral;s to others who could buy homes and the developer says it never happened. Zuckerberg bought four homes and lots near his property. Be careful where you walk one of San Franciscos most dangerous intersections is about to change. The corner of sunset and yorba street. In february a 78yearold man was killed in the crosswalk. Two others were hurt this year as well. Now a traffic light will be installed by july. Its not just San Francisco. Pederson safety is an issue across the bay area. And Many Police Departments were out in full force at the giants game. Gene ellie has their message. Reporter we hear about pederson deaths here in San Francisco but it is happening around the region. And giants fans went home tonight with something to think about. Thousands of baseball fans from all over the bay area walk into at t park. Most can tell you about a close call on the road. The fields from los altos say they are extra careful. Walking and biking even in the neighborhood. Some of the corners are on the blind side. Reporter antonio sticks to the cross walk. I ended up running across the street. Reporter hoping to drive a safety message home, Police Departments from all over the bay area greeted them at the gate. Its important. Its a regional concern. Reporter San Franciscos police chief says while the number of traffic deaths is not down, the number of collisions is and ticketing is up. 92 of the tickets are going to cars and rightfully so. They can kill people. About 6 are going to pedersons. 2 to bicyclists. Reporter nobody wants to get a ticket but they are really unhappy at an impact. Police are hoping that the reminder saves lives. It keeps it in your minds. Reporter sevenyearold miles knows how to cross safely. Iold my skateboard and walk i get off my scooter and walk it. And bike, same thing. Get off and walk it. Police all over the bay area are issuing reminders. Reporter and we saw a few close calls tonight. Police say if you are walking, biking, or driving, its best to be defensive. Jean ellie, nbc bay area news. Thank you, jean. The search is on for the drug dealers forced to leave their goods behind on a bay area beach. Authorities found an empty boat and suv full of pot this morning. The suv, stuck in the sand. Unable to get out. Investigators say the boat is likely from mexico, typical of what drug traffickers use, fast with a large fuel tank. They could have reached the bay area from mexico overnight. The drug dealers ran off after they couldnt get the suv off the beach. Dress and drink appropriately. Here comes is 90 degree temperatures. And heat impacts a lot of people. Nbc bay areas Terry Mcsweeney has both sides of the heat issue and it is still 72 degrees there. At 11 16. A gorgeous night but mid90s here tomorrow and hotter on wednesday. If you have to be out in the heat in the bay area, it can take a toll. At the blue agave restaurant its no sweat tonight. But tomorrow and wednesday could be a different story. It makes it a bit stressful especially when im running around a lot. Im basically out in the sun for four hours at least. Reporter she would love to be in a pool like this one, cared for aqua hero pool and spa service. The phones are ringing like crazy. Reporter the owner loves the heat driving people to their pools earlier than usual. I would give us a 10 to 15 jump. Reporter these fountains figure to get plenty of customers for the next few days. One man is not concerned about his grandchildren in the temperatures. They can handle 100 degrees . Easy. How about you . Me too. Reporter the city of dublin is opening cooling stations tomorrow and wednesday including the city library. But there is more than just be cool here at 68 degrees. We have music. Weve got movies. We have books. We have downloadable books. We have computers that people can go on. Reporter if you know someone who is elderly or ailing, especially over near the coast check on them this week. With over the on coast because they are less likely to have airconditioning in their homes. Live in pleasanton, Terry Mcsweeney, nbc bay area news. A lot of us have no airconditioning on the peninsula. Jeff ranieri when does it start to kick in . We wanted to start off with our 24 hour temperature change. Right now to 24 hours ago. And temperatures are 7 to 9 degrees warmer at this hour compared to yesterday. The bubble of heat is surging in. And San Francisco is up the most when it comes to that jump in temperatures. So a sign we dont have on shore winds but drying winds moving into place. National Weather Service has issued a heat advisory for tuesday also through wednesday for these temperatures ranging 90 to 105 degrees. Make sure you drink plenty of water, take the pets indoors and check on the elderly and young ones. They suffer from heat exhaustion quicker. And you may not know you are dehydrated until you are thirsty in some cases. The one cool spot is in the north bay, it is trapped in the interior valleys. But in San Francisco you know that this Crystal Clear at 11 19 its going to be hot here tomorrow. Lets get a look at what we can expect when it comes to the Weather Forecast any time at all across california when you get High Pressure building it it has warmer air associated with the we shouldnt see this High Pressure until july and august. So through tomorrow, 10 to 20 humidity levels. That is low enough to increase the fire danger. Temperatures up to 105 degrees and a spare the air day in effect for tomorrow. So well take you into some of the temperatures we think will be close to recordsetting. Gilroy, 97, we think well set a record in santa rosa with 94 degrees and oakland with 90. And many people want to know how long is the heat going to last . Only through about wednesday well be close to 100 with the hottest day of the week in the south bay and trivalley. By friday and saturday that ocean a. C. Comes back, and temperatures should cool some 20 to 35 degrees across the bay. Relief will be coming. Have to get through wednesdays forecast. Lets look at the numbers for tomorrow. Sunny skies, temperatures in the 90s across the south bay. If you are out in the sun, its going to feel like 100 to a lot of you. 94 in san jose. And 95 in palo alto. And san matteo at 90 as the winds turn more drying the temperatures heat up in San Francisco. 86 on the embarcadero, 85 for the marina. A sunny day to look at the golden gate bridge. And livermore at 95. As we look at the next five days the trend shows the hottest weather through wednesday and cooler friday and saturday for san jose by this weekend down to the 70s and San Francisco will be back in the 60s by saturday. So raj and jess my top six hottest cities for wednesday. If you like the heat, head here. If you dont, stay away. Every in the bay area. Going to be warm. It is. Still ahead at 11 00, rethinking the benefits of red wine. And we have jim requemy fal neil young is recording a vinyl tonight. And we have louie c. K. Its a huge show. Were on next. I want you to know stuff i want you to be kind. I want you to be smart. Super smart. I want one thing in a doctor. I want you to be handsome. I want you to be awesome. I dont want you to look at the chart before you say hi. David. I want you to return my emails. I want you to keep me doing this for another sixty years. At kaiser permanente, we want you to choose the doctor thats right for you. Find your Perfect Match at kp. Org and thrive. His voice announced the hits for decades. But now he is missing. A judge ordered an investigation into casey casems whereabouts. He cannot speak. A lawyer for his wife says he is out of the country but would not say where. His children are worried about his health. His wife and children have been in a legal battle fighting over his care. He worked at two bay area radio stations in the 1960s. It all depends what study you want to believe. A new study shows that antioxidants in red wine and dark chocolate is not that beneficial. It has gained a reputation for fighting disease, and prolonging life. But the latest study of 800 aging people showed the compound had no effect whatsoever. Everyone was healthy in this study. Studies in the past with sick people showed better results. So it may be better at treating illness than prevent it. Gerard moncure is next with a standing ovation at at t park tonight. Well tell you about it. Good evening im gerard moncure. Tyl tyler coal bin make a start tonight. As far as endearing yourself to the hometown fans, he couldnt have done much more. The newcomer making himself at home. He will take gavin floyd for a ride. His first hit of the season a solo job. 10 giants. Tim lincecum striking out johnson. He surrendered two hits in 7 2 3 innings. 41 giants, lincecum fans, 42, giants win. As an white sox. Oakland swinging for a fifth straight win. Bottom of the fifth, donaldson with a tworun bomb to left. 31, oakland. Bottom of the ninth as up 54. The as hang on for the 54 win. 54yearold Stan Van Gundy has not coached in the nba for two years but he might be the front runner for warriors head coaching job. He has bay area ties. Now the only reason he could be seen as the front runner is because steve kerr is expected to become the knicks head coach any day now. The answer to treating your dogs fleas and ticks is staring you right in the face. Nexgard from the makers of frontline® plus its the only chew that kills both fleas and american dog ticks. Vets recommend it, and dogs, well theyre begging for it. Nexgard is for dogs only and hasnt been evaluated for use in pregnant, breeding or lactating dogs. Reported side effects include vomiting, dry flaky skin, diarrhea, lethargy and lack of appetite. Use with caution in dogs with a history of seizures. Recommended by vets. Loved by dogs. From the makers of frontline® plus. You need shorts, sandals, a smoothy, sunglasses, the whole thing. Yeah. Its going to be perfect weather here for smoothy action if you are on the sidelines of the amgen tour. Upper 80s by 1 00 and 90s for the afternoon. Hot for those guys. As we look at the next five days the hottest day of the week is on wednesday. 90 in San Francisco. But by this weekend, things start to cool off. Two days in the hot weather and then looking good. Enjoy the heat. See you back here tomorrow. Byebye. Steve from studio 6b in Rockefeller Center in the heart of new york city, its the tonight show starring jimmy fallon. Tonight, join jimmy and his guests louis ck. Neil young and jack white. Musical performance by