incredible scenes happening across america overnight a shooting at an arizona mall and then to michigan where thousands have been forced from their homes during a lockdown as flood waters ravage the area new hope for coronavirus survivors, plus what researchers have found that could speed up the race for vaccine >> si'm asking this member to put on a mask because that is our company policy either wear the mask. >> i'm not doing it because i woke up in a free country. >> the scene in a costco where an employee was forced to throw out a customer who refused to

wear a mask. one alabama high school is not cancelling its graduation ceremony going full cap and gown with social distancing >> and fish tails in maryland where they take their six feet of safety to a whole new level >> good thursday morning i'm frances rivera >> i'm david gura. >> in central michigan hundreds of homes and businesses are under water after torrents of rain overtook two dams triggering catastrophic flooding now they're trying to figure out how to evacuate while remaining safe amid the pandemic >> reporter: david, good morning. the flooding broke a 34-year record and on a normal day this would be an open park but am standing in several feet of water. it's been so destructive that the geography of the area could

be permanently reshaped. the water came fast and furious, a pair ef zof dams failing send water gushing into homes and businesses >> massive amount of debris there. >> reporter: reducing much of this dam to rubble >> i never thought my life that dam would break. >> reporter: the flooding catastrophic, the governor declaring a state of emergency >> hard to believe that we're in the midst of 100-year crisis, a global pandemic and that we're also dealing with a flooding event that looks look the worst in 500 years >> evacuate the area >> it's a crisis within a crisis people here are still under stay at home orders for coronavirus, but ten thousand were ordered to evacuate danielle grabbed her pets and rushed to the school turned shelter. >> we're still under stay home stay safe. if stayed home i wouldn't be safe i'm not safe anywhere right now. >> i'm not sure what we're going

to do. >> reporter: flood waters forcing her out of this senior living center. >> the dining room and the kitchen are totally flooded. >> reporter: the river cresting at more than 35 feet, a historic high entire towns already submerged now concerns for dow chemical's main plant which sits on the river banks. the safety of these dams have long been under scrutiny they were rated high hazards in 2018 meaning loss of human life are likely if the dam fails. this community remains on edge grappling with dual disasters. >> reporter: after days of rain the weather is finally starting to improve but rain is back in the forecast at the end of the weekend into next week which could leave to even more flooding >> thanks for the reporting. breaking news out of arizona, authorities are investigating a shooting at a mall

police say three people were shot by an unidentified scene. >> there's really hard because it's all happened so fast. it's literally the blink of an eye. you never know >> arizona state senator was also there and witnessed the incident he wrote i just witnessed an armd terrorists with an ar-15 shoot up west gate i saw two victims with my own eyes not sure how many others one of the victims is in critical condition the other suffered nonlife threatening injuries the suspect was taken into custody safely and are urging residents to stay out of the area as that konltd to investigate. >> the effort to get america safely back to work. president trump is traveling to michigan to visit a ford plant that's been make ago ventilator. the state attorney general says the president has a legal

responsibility to wear a mask during his visit the company also says the white house has its own safety and testing policies in place. meanwhile, vice president mike pence spent the day in florida he had lunch at the governor at a recently reopened restaurant the vice president also delivered protective equipment to a nursing home and met with business leaders the governor in california is working on a plan to get hollywood back to work the state is expected to release guidelines to allow fill, tv and commercials to produce production >> tyler perry has released a 30-page plan for restarting production cast and cruise members will be tested for coronavirus and required to isolate at home before traveling to georgia. and everyone must stay inside what they are calling the quarantine bubble during the filming period there's new hope this morning about potential coronavirus vaccines and treatments two nc major discoveries that could pave the way to

solutions. tom costello has this report. >> reporter: two break throughs at two labs. more evidence that recovering from covid-19 may lead to immunity against reinfection researchers say nine monkeys that recovered from virus induced pneumonia developed anti body to the virus around had nearly complete protection when they were reexposed a month later. that could suggest immunity from a second infection >> our studies show there is immunity to this virus and it gives us optimism that this will likely be the case in humans. >> reporter: they also tested a p prototype vaccine. researchers believe they've discovered the achilles heel it's right there on top of that

red hook that we've all seen >> this is an important target for development of much needed vaccine. >> reporter: and more encouraging news using blood plasma donation from people who have recovered they should be able to inject anti bodies into people who are already sick carl donated blood after taking 29 days to recover from covid-19 >> and they're speculating that because i spent so long with the virus that i built up so many anti bodies, it's off the charts. >> reporter: the question researchers are asking, if you've recovered from covid, how long will you have anti bod cities that should provide protection >> will they be there in the fall or next winter if we get another wave of, you know, the sars covid 2 infection will they still be around at that point and be able to provide protection >> and we don't know that right

now. >> we do not know that right now. >> if the anti body dos provide imcommunity, people could have a sort of immunity passport which would give them clearance to return to work and perhaps even travel >> thank you very much as retailers reopen some are becoming battlegrounds employees are tasked with enforcing social distancing rules on shoppers and it's led to some tense moments. >> there he is walking away with all my stuff. >> reporter: wearing a mask to shop is now a flash point for conflict >> i'm asking this member to wear the mask because that's our policy. >> i woke up in a free country. >> reporter: a customer unwilling to wear a face covering, berating an employee >> sir, have a great day you're no longer welcome here in our warehouse. you need to leave. >> costco which declined to comment on the specific incident requires customers to swear

masks citing the cdc saying although some may disagree this policy we're choosing to ere on the side of safety this conflict drives home the new reality for front line retail workers now having to enforce health and safety policies in addition to normal responsibility >> tensions boiling over as unprecedented customer demand soars. walmart and target in store saled jumped more than 10% >> this quarter was unlike anything we've seen in our company's history. >> grocery store workers worry for their own safety too >> it's just been crazy. the customers, they have attitude sometimes and then we got to deal with who may and may not be sick. >> as far the costco employee tyson he's grateful after a difficult moment saying thank you for all of the support balancing a new job on top of a job on the front lines of this pandemic nbc news, los angeles. well, this restaurant is

ready to bounce back fish tails in ocean city, maryland, debuted ten new bumper table, you see them there, to keep their patrons six feet apart. it's the brain child of revolution event and production. they refer to them as an adult version of a toddler walker. they plan to use the new tables when the state reauthorized outdoor dining they can't wait to put those to use. >> they're staying safe but their drink may not be if they keep bumping around like that. that will be the worst scenario right there. let's turn to janessa webb with a look at the weather ahead. >> we do have an unstable atmosphere that's producing a kind of rain across the mid-atlantic i do want to take a closer look at what's happening in ro roanoke, virginia, right now t. we've seen rainfall raise of

about one to two inches throughout the morning that will be fluid with flash flood warnings currently in place in that area this will continue for at least the next 24 hours. things will start to die down but on top of the rain that we've ever seen we're going toen west virginia, virginia could see up to 6 inches so we're going to continue to watch that overflow some streams and flash flooding going to be a big impact for the mid-atlantic with 14 million peop in the palethlahoma city. if you're in the northeast, boston, new york city is the place to be. lots of sunshine in the upper 60s. we're going to take a look at that memorial day forecast

coming up. thank you. the ncaa is allowing student athletes back on campuses approving voluntary activities for football and basketball starting on june 1st undethe mandate coaches cannot attend workouts unless they are needed for safety reasons. a vote on when other sports can return to schools will be made at a later date. >> a lot of people waiting to see what happens with that coming up on "early today," how coronavirus is reshaping summer plans across the country. >> and a greener, betdid he pull off the escape of a century? the new development next you wouldn't do only half

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of this story is so crazy. what have we learned >> this is a hollywood producer's dream the latest development here is that two americans have in fact now been detained. one oaf them is a green -- a former green beret the other is his son they've been arrested in connection with helping mr. ghosn escape japan in this huge black box that's meant to store musical equipment. a couple interesting things here mr. ghosn is in lebanon and he can't be extradited. lebanon doesn't extradite its citizens the u.s. however does and we have heard from japanese authorities that they are planning to launch an extradition request that these two men be sent to tokyo to face justice. the u.s. secretary of state would have to approve that request but there's no indication at this point that they would deny it these two men are in custody right now. they're also being requested not

to receive bail. thng please don't give them bail because they believe they're a flight risk based on their previous activities. >> the story continues thank you very much. >> can't imagine what the next development in that story and the netflix documentary that's going to come. >> straight ahead get ready for international burger day snoo and a new survey reveals the impact on vacations. i take osteo bi-flex, to keep me moving the way i was made to. it nourishes and strengthens my joints for the long term. osteo bi-flex. plus vitamin d for immune support. osteo bi-flex. you try to stay ahead of the mess. but scrubbing still takes time. now there's new powerwash dish spray. it's the faster way to clean as you go. just spray, wipe and rinse. it cleans grease five times faster. new dawn powerwash. spray, wipe, rinse.

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in today's news by the numbers a fresh look at the 2020 race a new poll shows joe biden up 11 points against president trump voters surveyed support presumptive democratic no, ma'am know over trump. >> a 1$100 raffle ticket she summed up her amazement in one word, incredible >> and someone ran over what they thought was a bag of crash. when they went to dispose of it they discovered just under a million dollars inside the family turned it in to police who were able to locate the owners >> the karma is going to come right back to them, i hope millions of americans are saying they are not letting this

pae pandemic stop them fro you.ous to here about this surprising perhaps, but a third of americans in the survey say they do intend to take a holiday or vacation before the end of the summer when you look at the breakdown though, 44% of them are talking about going to a national park 39% said they'd like to go to the beach. the problem is how you get there, because about a fifth of americans surveyed said they're not really that keen on taking a flight and you know what, the other problem is, a lot of americans probably won't go on holiday at all a similar amount said they wouldn't travel until next year. who knew it was international burger day, but today is the day and smash burger are offering a

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nascar continued its return to the season in a rare midweek race once again in front of no spectators the action was fast and furious until rain brought the race to an end meaning hamlin walked away with a win. check out that mask as he celebrates i'm sure we'll be seeing a lot more of those out there. >> janessa is back with a peek at the holiday weekend what can you tell us about the weather this weekend >> unfortunately going to be dodging the rain drops across the nation the east coast we're going to be dealing with washout conditions and it's going to lead to more flash flooding going into tomorrow saturday, some spots will dry out, memorial day, looking pretty wet across the east coast. >> all right

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in today's top stories new concerns about misinformation and the coronavirus. researchers say nearly half the twitter accounts spreading messages about the pandemic are likely computerized bots the study found over 100 false narratives about covid-19 since january. it's too early to determine who might be behind the accounts but itseems to be creating divisio in america the parade in fenway park to honor first responders 50 ambulances representing each state drove the warning track of the field honoring paramedics,

dispatchers and emts massachusetts state police even escorted those ambulances to the stadium in boston. >> out of all the creative uses of fenway park, we love seeing that an in-person graduation ceremony hundreds of students gathered for the ceremony at the hoover mets stadium some expressed concern about the in-person graduation but the show still went on students wore masks and were seated six feet apart. the stadium was kept at less than half of its capacity and still watching across the stage keeping tradition. a big show for appreciation for high school seniors. a report on a trend catching on for the class of 2020. >> in savannah, georgia, santa claus has some competition >> we're so proud of you. >> reporter: grads have been showered with gifts from strangers who decided to adopt a

senior >> i went on the facebook group. i saw her and i immediately knew she was the one that we to adopt. >> she delivered this giant basket of goodies. >> we're here for you. >> i still want to make my family proud i accomplished a lot i feel really special. >> such programs are popping up all across the country >> we wanted to do something to give back and let them know that we understand. >> organizers were stunned when 5,800 people signed up >> it's overwhelming because there were so many people but we are so happy that the community stepped up >> after so many senior year memories were taken, it's nice to focus on what's given >> i love it >> more and more of those new creative memories being made for their graduations. now to a cincinnati zoo that has found a new way to bring its animals to their fans. they've created a lot of face

masks. one is the hippo, there are others like red panda or giraffe. i'm sure every one of your three kids loves seeing you wear those. >> hard to get them to wear them that's the hard thing.

it's greats to, relax with your family and have a nice dinner. >> more restaurants reopening today to serve in-person dinners and lunches, and the next county getting the green light in phase two of reopening. plus to wear or not to wear masks? coming up, clearing up confusion as more businesses heads towards reopening. this morning, we are sorting through the questions. thank you for starting your morning here with us "today in the bay," i am marcus washington.