Potential Travel Problem News Today : Breaking News, Live Updates & Top Stories | Vimarsana

>> i'm elise preston in santa monica, california, where crowds are coming to escape the extreme heat. also tonight, mixed signals. after a week filled with flight delays and cancellations, starting today, there's a new invisible threat that could cause more disruptions. i'm michael george in new york. new, more powerful 5g wireless signals could make your flight delays even worse. plus, immigrant crackdown. florida's new law that takes aim at undocumented workers and their employers takes effect today. rage in the streets. as france struggles to quash days of violent protests...

July, we do have the severe thunderstorms possible still around atlanta and down off towards the south in miami and up towards boston. >> lynette charles, thank you. across the country today, holiday travelers found more than 4,000 flights delayed and roughly 700 canceled. and that's an improvement to the cancellation chaos that disrupted travel wednesday through friday, mostly due to severe weather. and we regret to tell you that starting today, there is a new potential travel problem. cbs's michael george is at laguardia airport with the details. good evening, michael. >> reporter: adriana...