Are there and were going to check them out all morning long and we want to show our thanks to those who are serving and have served our nation. More on whats happening across the nation on this veterans day. Plus well look at a local group of veterans and what theyre doing to honor their service men and women. We promised wed head over to rosemary to check out the forecast. Its kind of chilly. Its a little bit cool but weve got some great weather for all of our veterans festivities. Lets step outside and give you a view of partly cloudy skies. You can see a little bit of glow there in the sky as they say good morning to saturday. We will be with partly cloudy skies for today. A little bit of fog with residual moisture still hanging on from the systems that passed through and gave us some rain. Were going to be dry as we get into the afternoon. Weve got temperatures on the mild side, just slightly warmer than yesterday. We are dealing with visibility issues in some areas. It looks like the central bay and south bay looking pretty good. There is one area in the east bay where were picking up on some fog down about a quarter mile visibility reported at the airport there on concord and over portions of the north bay. Napa reporting a mild visibility. Its the darker shades of gray indicating where we may have patchy dense fog where visibility is down to a quarter mile. If you have an Early Morning drive you may come across it, especially the inland valley locations. Thats where we tend to see the fog this time of the year. 53 in San Francisco, 51 in oakland, a cool start in livermore, 46 into the north bay. Chilly for you here in napa. 48 degrees outside your door. Temperatures are cooler than where we were yesterday with the better clearing this morning down by four, even eight degrees depending on where youre at. Afternoon highs, widespread 60s, upper sirkts 60s for pacifica. 65 degrees this afternoon in antioch, as well as livermore. Temperatures wont change a whole lot as we get into the back end of your weekend. We have another opportunity for wet weather coming our way. Ill have that in the commended forecast coming up. A family is asking for help to find their son who hasnt been seen in three weeks. The 19yearold was last seen october 22nd, after telling his parents he was going to San Francisco. They say the last activity on his credit card shows he exited the montgomery street bart station that afternoon, but has been no activity on his phone or bank card, as well. The Alameda CountySheriffs Department is treating this as an at risk missing persons case. Investigators are pulling Surveillance Video from the bart station. 19 days is a long time, and we want a positive outcome for the family. He didnt bring no clothes, you know, if he planned to go away you have to bring something, at least a jacket. Their parent says he does not drive and realize on Public Transit and has never gone overnight without letting them know and hired a private investigator, and posted flyers, but so far no leads. A Mountain Lion seen roaming around the Diamond Heights neighborhood has been sec fully released on the peninsula. Video shows the moment when is wildlife officials tranquilized the cat. It was captured near Diamond Heights boulevard near the green canyon park area. Wildlife officials were able to tranquilize him without injuring him, and is about 18 months old, male, 82 pounds so a goodsized cat. It was released in the christ cal springs area in San Mateo County last night. Wildlife Officials Say the Mountain Lion was fitted with a gps tracking device. They say Mountain Lions are finding their way into cities like San Francisco is not as rare as you may think. Its very common of Mountain Lions called disbursal where they find their own territory and its not uncommon to go through cities. People dont have to spot them and they discover theyre in a bad yeah and are able to find their area and are able to find their way out. This is the third sighting in less than a week. On wednesday, a video was posted of a Mountain Lion outside of one mans home, and a similar video last we could of a Mountain Lion in his neighborhood. Both videos show the very same Mountain Lion and its the same one that was trank tank wilized tranquilized. And air force one arrived in the capital city of hanoy today. The president says u. S. And vietnam relations have come a long way. He says he is impressed by the success of the country and he will be sitting down with vietnams Prime Minister and president in high level talks. The president spent the first half of saturday at apec and met with the pacific rim leaders in the seaside city and pressured them to pressure north korea to abandon its programs and scolded the other programs with the trade imbalance for the u. S. From this day forward we will compete on a fair and equal basis. We are not going to let the United States be taken advantage of any more. President trump did not have a formal meeting with russian is the vladimir putin, but shook hands. Later on board, air force one President Trump told reporters democrats were creating an artificial barrier, and reiterated moscow do not meddle in last years elections. A group of several states and businesses joined together at the bond conference on Climate Change in germany to form americas pledge. Governor brown was among the leaders from the United States that have committed to reducing green house emissions and had to deal with some hecklers while making his remarks. I agree with you. Lets put you in the ground so we can get on with the show. They were shouting about keeping oil in the ground. A Group Americas pledge was formed after President Trump said he would withdraw the u. S. From the paris climate agreement. 100 countries signed up for that agreement. What were doing is relatively limited to the threat that we face. So, yes, we need to do more. Weve got to get off oil and gas. Weve got to get off coal first and we need a strategy that integrates all sectors to get it done and unfortunately in politics there is no magic wand. I dont wake up and say, stop, theres no more coal and oil. Otherwise all you get is noise. And that is really goes noise. The goal of americas pledge group is to do what they can to reduce emissions without help from the white house. Law enforcement officers are going to be out in force this weekend to crack down on side shows. Oakland police say its seen posts on line about side shows in multiple city this is weekend. There have been several large side shows on freeways and city roads over the past few weekends. Opd says Highway Patrol and other local agencies will be helping in the crack down. People caught taking part could face citations and seizures of their cars for up to 30 days. The two final peers of the old span from the bay bridge, crews demolished 11 piers since labor day. The two remaining concrete foundations will be topped at the lights stop at the lights and will create stops for cars on the west end. Theres spider. Hes saying theyre coming to me. Cal trance says it is a year ahead of schedule, demolishing the east span and have saved about 10 million because of that. Apparently talking to christie this morning. Its shallower, closer to show. This will be more of a spectacular implosion. Its always been a little bit far away. You have to get that Treasure Island spot, but this is where we see that spot right before as theyre getting ready. It looks like they are on track. They have that boom out there on the outer edge of it just to make sure that when it umexplodes, theyve done implodes theyve done a lot of work on the sea life and the noise and how it affects the fish. Theyve got this big bubble curtain and theyve got it down, what, a year ahead of schedule. Coming up next at 6 10, tomorrowingly the cause 7 10, determining the cause of wildlife. Well let you know what the Utility Company thinks could have started those deadly fires. Bay area science festival about to get underway at at t park. Darrell do some science for us. You can see the effects that liquid nice job causes on the boone. We have Mitch Moreland coming up. How far would you go for coffee thats a cup above . I brought you nespresso. Nespresso. What else . Ing. Good morning. Happy saturday. Waking up at the golden gate bridge. A bit of cool weather is outside your door. Temperatures will be fairly mild. Ill have a look what you can expect for your weekend and the next chance of rain coming up. 7 13. Happening today, thousands of science lovers will be at the San Francisco at t park for the seventh annual discovery day. There will be more than a hundred exhibits, games, experiments, related to science all for free and the biggest kid of them all, christian front and center with some of the activities this morning. Dr. Science, good morning. Reporter dr. Science, i have my ph. D in science. Just go to general science. Reporter as did you, doctor. We are here at the bay area science festival. A wonderful opportunity for kids and the community to really come out and get their hands on science. Cody joining us from mine trekkers, michigan tech, welcome to at t park and were going to do some fun stuff with liquid nitrogen. Its going to be great. Youll have a good time. Reporter lets talk first about what some of the properties are of liquid nitrogen. It is very cold and can do interesting stuff to everyday materials. Liquid nitrogen is 121 degrees negative farenheit. Weve got a flower that were basicallysubmerse ing submersing. Can i hold on to it now . Basically sub mersing. Submersing. Super cool. I was very concerned about getting hurt with this. We skipped this to our second experiments which is gram crackers, as well. This is our dragons breath. Weve got graham crackers basically submerged in liquid nitrogen. Next just take one off. Right. You tried to tempt me with these. Thats good. I love graham crackers but im not putting it in my mouth. And the last one, were making ice cream, so in here right now we have all the ingredients for ice cream, just not frozen yet. We are making ice cream in less than 60 seconds. We have a little bit of chocolate syrup, last piece is the liquid nitrogen. And of course liquid nitrogen boils off and turns into this team that were seeing, which is just nitrogen, which is 70 of the atmosphere. It wont cause any harm and you can get them molted, right . Give it a malted. Now give it a taste. You dont have to worry about getting your tongue burned. And one more . Last one. This is our home gnomes. Weve got a polymer a and b and we power them into. Theyve already been poured into the top. Eventually as theyre mixed, were going to pull it out. Is it just going to puff up . Yep. Okay. It will get nice and pumped up. Keep stirring. There we go. Reporter so this is how science works. Its not always predictable. Starting to go. Starting to go. This ones a big hit. Its going to come out just like home insurancelation and everyone can i nsulation. Were here as part of the boesch experience. You know this park is packed with families who want to try this stuff, and this is one of the great things to have hands on science. This has been a blast. Well have a lot more experience for you this morning. Now look, its still going. Your doctoring has been revoked. Im not going to eat the graham cracker. Its not going to poison me, is it . I did call him a wimp. Thats cool. Reporter and we did one more science experiment i was saying what happens if you drop an ice cube in the liquid nice jen and 99 kind of knew so we did our scientist make experiments and drop the ice cube in there and boils the liquid nitrogen on. Science for life. Now your doctorate is back. Take a bow. And take a graham cracker. All right. On your screen there weve got the information if youre thinking i want to head down there. 10 00 a. M. To 4 00 p. M. Today, it is free to get in at tat park. You may need a jacket if youre heading there this morning. Lets check in with rosemary. Lowtomid60s, in the shade its going to be a cool one. Outside our doors, a bit of a chilly start. Were cooler than we were yesterday, a little bit of fog giving you a look at the approach to the bay bridge. Traffic slowing down and being held up perhaps due to that implosion that we are waiting on. Well keep track of that, but if you are thinking ahead of the city its not going to be an easy cross. You can expect some delays, at least for the time being. Heres whats going on from up above where we have mostly cloudy skies, our fog and valley locations reported at concord, a mile over areas of napa, santa rosa looking good at eight mile, but it could fluctuate over the next hour or so. Partly cloudy skies for afternoon. Maybe a little bit of drizzle out there. By the afternoon well turn partly cloudy and for the second half of the day clearing out just a little bit more with temperature ranging in the 60s. Sunday, more of the same, partly cloudy skies expected, but by sunday night, that scattered shower activity beginning to approach the north edge over lake county, as well. Your weekend is dry, but by sunday night we could see a few changes come our way and that could open the door to a few scattered showers as we get going on monday morning. 53 degrees in San Francisco, low 50s through the east bay shore. Mid40s to low 50s for the inland cities. 46 in livermore, south bay, 54, san jose. And upper 40s, lafayette, alamo, black hawk, 50 degrees to start your day in antioch. Low 60s, john ra fellphel. And south bay location r rafael. The extended forecast increasing clouds tomorrow night, perhaps waking up with scattered showers on monday, dry on tuesday, but the next chance of rain moving in wednesday. Lets take you back outside to the shot of the implosion of one of the peers on the bay bridge. Just have a couple left theyve already demolished the building. They are going to be imploding that in front of you in minutes. If youre hoping to get across youre going to have a bit of a day. A couple of these will be knocked down and look like its progress in a matter of minutes that should be gone. You can hear the sound from there. This is one of those things where youre keeping an eye on it and it could happen at any moment. We are also keeping an eye on the bay bridge until 5 00 p. M. And it stopped. Lets go back to that picture because they dont stop it very long before they implode it, so maybe we should just sit on this a second longer. Good tv. When all of those cars are stopped. On a veterans day, theyve been doing this every other week for the last couple months now. Here, after peer, and these are the final two. They call it rolling stops because they happen very it happens really quickly. Its literally seconds. Is alex trebeck in the house . We can see some of the foaming around the actual peer itself. Thats little bit different from watching earlier. They dont like the keep the traffic stopped for very long. Its not something that the driverings like. You cant really see it if youre on the bridge size. Its always precaution. This is in a little bit more sale lower water so its going to be closer to show in terms of the water thats going to blow up after it because its probably ten, 15 feet deep there. They were reading my mind. Youve got a spider hanging out as we take a look. Sometimes when this has happened in the past, theyve changed the kind of timing of when theyre going to do it. And you would know that because they let the traffic go. As long as that traffic is stopped on the west end of the bay bridge, youll get a good indication this thing is imminent, so were hanging out here, waiting to bring it to you live because it is pretty impressive to see and this is your best angel. Theyve been good about having the media and the pictures as its happening so we know when its going on. All of those folks, its a saturday morning, and 7 24, we usually do not have that many cars. Theyre not too pleased. We usually dont use a picture. Thats a pretty good back up. As we wait for the implosions. And the first two they did around 10 00, 11 00. We get a little bit further away shot. It just takes a matter of seconds and that will be there. Theres two of them. One in the foreground and one in the background. This is it. When theyre done here, and weve been seeing this here, you almost forget those are remaining when you have pieces of metal and structure of the old bay bridge. It went all the way over to Treasure Island, and piece by piece by piece, its taken nearly three years now since the new bridge has opened to get the old bridge down and you certainly cant seeing any from the span itself anymore, but these two last remaining tierce, and theyre keeping up, the higher piers, theyre going to have a walking peer out from the oakland side, but thats these peers that youre looking at of e17 and e18. They were 13 marine foundations on the span of the bridge, these are 1936 concrete structures so its taken six weekends to get all of these done and again this is the final weekend. You talk about a timeline. Were a year ahead of schedule, so what does that mean in terms of dollar that means 10 million is a good thing, getting it done early. We know theres a lot of environmental work to make sure they do not have an impact on or at least minimal impact on the sea life and marine life around there. They had the birds that were nesting on the bridge itself . They had to work out a plan to get him off into another area because they would nest on the old bridge so they had to be very delicate and find another environment for those birds to nest and for the marine life, as well, and some of the seals and whatnot that are in there. They do it at such a time that they dont affect them, as well. Theyre not on time. Those people do not like to be on the bridge for very long. That is an indicator to see how close we are. Theyve been stopped now for several minutes and these are rolling closures that are going to happen n