lisa mateo reports. >> reporter: move over, instagram and snapchatted. one of the hottest apps right now is tiktok. formally known as music link, the app relaunched last year and it allows users to record videos with popular music. these sisters love it. >> it is summer to relate to others your age and it's always funny, always finding something to make you laugh or it will make you feel happy. >> reporter: tiktok is the fastest growing app of its kind right now. joan saltzman said the app has about 1 billion users but parents shoulde tuned in. many of the popular songs have explicit lyrics. >> they have offensive content and like any social media app, you have to be concerned about the possibility of predators being able to find your child. >> reporter: have you ever been approached by someone you don't know on tiktok? >> yes. i blocked them. they requested to follow me. it was some weird guy. >> reporter: some users have found mean and offensive comments posted for everyone to see but there are safety settings in the app. making an account private allo

lisa mateo, cbs news in new york. >>> nine handmade crosses arrived in dayton, ohio and they were laid out on the sidewalk near the site of the attack last weekend. the man who made them had juste down 20 crosses for the mass shooting victims. >>> i'm emily turner and time magazine just released the new cover for its magazine. squeezed onto the cover are the names of the 253 locations that experienced mass shootings just this year. they have aggregated that information based on the gun violence archives and the threshold was whether or not at least four other than the shooter were injured or killed in a mass shooting. of course, the word enough is written across the middle and that, apparently, was the big debate about the time magazine cover and whether they would use it. they ultimately decided to use it because they said they feel like it's enough. i'm emily turner, back to you. >>> authorities are now allowing vendors and volunteers to retrieve their cars directly from the site of the gilroy garlic festival with dozens of vehicles being abandoned after the mass shooting that killed

lisa. >>> turning on abc7news.com, san mateo high school are going phone free.is the largest public school in the country to do this. since our story aired earlier this week it has been getting dozens of calls from other schools interested in doing the same thing. kris reyes has our follow up story. >> so i was wearing my name tag and just somebody i never knew before noticed it and said, i love this thing. i love what they're doing in san mateo high school. >> reporter: news of san mateo high school's new policy of locking phones in pouches all day every year has been spreading fast and resonating with educators across the country. >> the phones and e-mails are buzzing all week and we're trying to be as timely as we can to respond. one teacher stated students feel less embarrassed being silly since no one is taking a picture of them. >> reporter: at the district eleven kevin skely is looking at it closely too with an eye on wider implementation. >> it may be the most powerful social, emotional health we do as a district, is to get kids off their phone. >> repor

lisa. >>> turning on abc7news.com san mateo high school is going phone free.in the country to do it. since our story aired earlier this week it has been getting dozens of calls from other schools interesting in doing the same thing. "abc 7 news" reporter chris reyes has our follow-up story. >> so i was wearing my name tag an just somebody i never knew before noticed it and said, i love this thing. i love what they're doing in san mateo high school. >> reporter: news of san hgh school's policy of locking phones up every day all day has been spreading fast and across the country. >> the phones and e-mails have been buzzing all week and we're trying to be timely in supporting other schools that might be interested in doing. >> one teacher stated students feel less embarrassed since no one is taking a picture of them being silly. >> reporter: at the district level, superintendent kevin skelly is looking at it closely too with an eye on wider implementation. >> this may be the most powerful social/emotional/health we do as a district, is to get kids off their phone

lisa. >> turning on abc7news.com, san mateo high school is going phone free.public school in the country to do this. since our story aired earlier this week it has been getting dozens of other schools interesting in doing the same thing. "abc 7 news" reporter kris reyes has our follow up story. >> i was wearing my name tag and somebody i never knew before noticed it and said, i love this thing. i love what they're doing in san mateo high school. >> reporter: news of san mateo high school's new policy of locking phones in pouches day avennd resonating with educators across the country. >> the phone has been buzzing all week and we're trying to be timely to support other schools wishing to do this. >> one teacher said students fell less impairsed when being silly because no one is taking pictures of them. >> reporter: at the district level the superintendent is looking at it closely too with an eye on wider implementation. >> this may be the most powerful social, emotional health kind of thing we do as a district, right, is to get kids off their phone. >> report

mateo county also topped the list. >>> time now the 5:20 this morning. lisa is here with a look at the forecast.d morning. >> good morning, kumasi. starting with the fog at the coast, here is live doppler 7. we are looking at the marine layer being squashed by high pressure that is building in. we have a couple of systems we want to keep you up to date on. these were hurricanes just last week, erick and flossy, this moving south of the hawaiian islands and bringing up pretty good as well as. nothing more than good surf for the island, but you can see it is pretty far away from the island chain. that's some good news. flossy was the other hurricane, but that moving north of the island chain and still at 40 miles per hour, continues to weaken as that moves to the north of the islands as well. so good news if you are planning to go to hawaii and definitely not having any problems there in the next few days. so that's that. here we are looking at the low clouds and fog. you can see the marine layer being pushed down to the surface here. it is 57 in san francisco. 62, oakland, redwood city and san jo