won't stop. violent storms strike several states with hail and more. while much of the country broils in heat. >> reporter: i'm shanelle kaul in new york city where we could soon see a break from these oppressive temperatures. also tonight, with the war in gaza grinding on, israel takes aim at u.s. support. >> reporter: i'm in tel aviv where prime minister benjamin netanyahu has doubled down on accusations the biden administration is withholding weapons deliveries for israel. in another war zone, russia and ukraine trading attacks. presidential debate. the first face o24 now four days away. plus, price fight. fast food chains update menus after your complaints. >> reporter: i'm kenny choi in los angeles with the appetizing new deals in the battle for your buck. and later, gone green. this popular old ride now powered by clean energy and we're on board. >> reporter: i'm danya bacchus in napa valley, where the wine train is going green. >> announcer: this is the "cbs weekend news" from new york with jericka duncan. good evening and thank you for joining us on this sunday. tonight more than a million people are under flood warnings across the midwest. iowa governor kim reynolds calling the flooding in her state catastrophic. drone footage right there shows me towns almost complety submerged. days of heavy rain have forced evacuations and rescues in several states. some rivers at record levels. and there's no escaping the heat in much of the country. look at that map. there have been at least eight confirmed deaths so far. cbs's shanelle kaul is in new york and tracking it all for us. shanelle, good evening. >> reporter: good evening, jericka. and while relief is now finally in sight, for millions o americans who have been experiencing this unusually early heat wave for the last week, residents in the midwest and the plains, are seeing a very different kind of extreme weather. record high floodwaters came fast in rock valley, iowa. >> i can tell you the devastation is severe and it's widespread. >> reporter: parts of the state saw nearly 6 inches of rain in just 24 hours. flash flooding cut off power to wastewater treatment plants in at least two cities. >> every day it's wet and raining and raining and raining home. >> reporter: in minnesota the crow river is expected to reach record levels above 19 feet. the governor there is calling in the national guard after days of severe weather turned cities into waterways. from extreme rain to extreme heat. the national weather service is issuing a heat advisory to more than 100 million americans from coast to coast. >> very hot. it's too hot. >> reporter: the nation's capital cracked the triple digits this weekend, the first ti june temperatures had been that high. and in california, temperatures in some parts of the state could get as high as 106 degrees. firefighters say the heat can make an already tough job that much more challenging. >> we're also entering that season where things are just starting to dry out. i think it's going to be a very difficult year for us. >> reporter: jericka, heat isn't te only weather-related issue happening here right now. an air quality advisory has been issued for four straight days, which means the level of air pollutants is so high it can be dangerous for sensitive groups. jericka? >> so important to take this weather seriously. chanel, thank you. for more on the extreme weather, let's check in with meteorologist andrew coe zack with more. andrew, what do you have? >> good evening, jericka. so many of us are sweltering for the eighth or ninth day in a row, in some cases. we'll start off in southern california where it could feel as hot as 115 for areas like palm springs through at least thursday. and the midwest from nearly the canadian border all the way down to the gulf coast could be elintemperatures as hot as 0. tonight the east coast looking at heat index values as high as 105 from new yk d.c. and all the way down to the carolinas. of course, we'rewatchi the massive midwest flooding from minnesota to iowa, south dakota. floodwaters finally starting to recede after impacting millions of people. and then finally tonight on this sunday evening, still watching severe weather in the northeast. new england from new york all the way to maine. severe storms capable of producing tornadoes, large hail and winds over 70 miles per hour. jericka, no shortage of impactful weather this weekend and heading into next week. >> andrew kozak, thank you. today saudi arabia announced extreme heat made this year's hajj pilgrimage a deadly for 1300 people. the pilgrimage ended last week. temperatures to mecca and other holy sites soared above 124 degrees. to russia now tonight and six police officers and an orthodox priest are dead after a series of attacks in the southern republic of dagestan. gun battles raged in the streets of two cities as a synagogue, two churches and a checkpoint were targeted. at least six police officers were killed. 25 others were wounded. video from social media shows buildings on fire in both cities. the attackers have not yet been identified. tonight there are new signs of growing tensions in relations between the united states and israel. cbs's imtiaz tayeb is in tel aviv for us tonight with the details. imtiaz. >> reporter: good evening. tonight prime minister benjamin netanyahu is doubling down on his accusation the u.s. is withholding deliveries of weapons to israel after making a similar claim just days ago. and as israeli attacks across gaza intensify. a warning, some of the images in this report may be hard to watch. they are among the smallest survivors. children covered in dust and blood rescued from a collapsed building in the immediate aftermath of israel's air strikes near gaza city on saturday. in the light of day, the scale of the devastation was hard to fathom. entire buildings pulverized. dozens were killed and many more wounded in the massive attack that israel insists targeted what it called two hamas military infrastructure sites. >> translator: america keeps telling israel it must stop its attacks, said this eyewitness, but at the same time, america is giving israel weapons that are being used against civilians. >> reporter: but prime minister benjamin netanyahu has yet again accused the u.s. of withholding weapons shipments from israel, telling his cabinet tonight the drop in arms deliveries began four months ago, without specifying which weapons. for weeks we asked our american friends to speed up the shipments, he said. we did it time and time again. netanyahu's repeated claims have sparked fury from his critics in israel and have been met with confusion and denials from the white house, exposing what's been described as major tensions with the biden administration, tensions which are also growing over israel's actions in the occupied west bank. following outrage over this video of israeli soldiers driving with an injured palestinian strapped to an army jeep, which a top u.n. official described as human shielding in action. in a statement, israel's military said the incident violated protocol and was under investigation. but israeli human rights groups say such behavior is rarely disciplined, that israeli forces operate in a climate of impunity, jericka, an allegation the military strongly denies. >> all right, imtiaz, thank you. this weekend russia and ukraine traded attacks as fighting in that war intensified. debris from a ukrainian missile attack on crimea sent beachgoers scrambling. at least six people were killed. and in ukraine, a security camera in kharkiv captured the moment a russian missile hit a residential building. at least three people died there. tonight police in suburban detroit are calling the death of an officer shot and killed while pursuing a stolen car late saturday an ambush. three suspects are now in police custody. deputy bradley -- was a nine-year veteran of the oakland sheriff's office. he was 30 years old and the father of three young children. his wife is expecting another child. well, there is renewed hope tonight in the tree of life synagogue in pittsburgh. the congregation, joined by second gentleman doug emhoff, marked the groundbreaking of a new complex. 11 worshippers were murdered in 2019 and the deadliest attack of antisemitism in u.s. history. turning now to politics. the first presidential debate of 2024 is just four days away. cbs's willie james inman is at the white house with more on the candidates' preparations. a lot of people looking to their tv screens for this one. >> reporter: that's right, jericka. good evening to you. both candidates are preparing for this big debate, but they're preparing in vastly different ways. and this comes as a new cbs news poll shows that some young voters feel that the candidates just don't understand them. this week could be a make-or-break moment for the biden and trump campaigns. >> should i be tough and nasty and just say you're the worst president in history, or should i be nice and calm and let him speak? >> reporter: trump was o and in washington, d.c. and igning philadelphia, where he teased a potential pick for his ticket. >> do they know? >> no, nobody knows. > reporter: among the possible candidates is north dakota governor doug burgum, who said the biden team is trying to lower expectations. >> i think we're all anxious to see which joe biden is going to show up. >> joe biden doesn't have any concerns about his mental fitness, nor do i. >> reporter: president biden is spending time at camp david preparing for the upcoming debate with a team of current and former advisors. the president will stay at the presidential retreat until thursday's debate, taking part in mock debate sessions led by former chief of staff, ron klain. both men will need to motivate key groups of voters, including those under 30, the majority of whom say biden and trump's age is a factor. while young voters prefer biden, only 66% of registered young voters say they will definitely vote this year compared to 94% of those 65 and older. while 48% of those under 30 say neither candidate understands younger people. and it could be a blockbuster news week, jericka, in addition to the debate, we are also waiting for a decision from the supreme court on trump's presidential immunity claims. jericka. >> such a busy week, willie james inman, thank you. you can watch the presidential debate hosted by cnn this thursday right here on cbs. it starts at 9:00 p.m. eastern/8 central. on the "cbs moneywatch" this week, mcdonald's is launching a new meal deal, as fast food restaurants nationwide react to pressure to put the value back in the value meal after years of price hikes. kenny choi in los angeles has more on the changes and the complaints that led to some of those changes. kenny. >> reporter: jericka, good evening. mcdonald's is set to launch its $5 value meal on tuesday as more restaurant chains try to get back ition wry customers. americans crave fast food. but with higher prices, more and more simply aren't loving it. >> it's expensive when we have to feed the whole family. >> reporter: how do you know that? what makes you say that? >> because the prices go up like every year. >> reporter: nearly two-thirds of fast food customers say they felt sticker shock at the counter this year. the cost of a quick meal is outpacing inflation, with prices up nearly 5% from a year ago. >> it's such a big jump recently. maybe we are splitting meals more often or we are a little bit more aware. >> reporter: to fight the inflation fatigue americans are feeling, mcdonald's, burger king, and other chains are launching combo meal deals. starbucks is also offering a discount pairings menu. >> this is not a war against one another. it's really just a response to get some of those customers back, particularly the lower income. >> reporter: fast food chains hope these bargains boost sales, as companies try to offset their own higher food and labor costs. but customers may need to grab these deals before they're gone. >> this $5 meal, it's a temporary thing. i doubt it's going to last more than a month. >> reporter: and according to a recent lending tree survey, 75% of people in this country eat fast food at least once a week. so, jericka, america is still hungry for a quick meal. >> yeah, i'd say so. kenny choi, thank you. and tonight in london, check out this surprise. it happened at taylor swift's concert at wembley stadium. kansas city chiefs tight end travis kelce showed up on stage in costume with a top hat to the delight of fans and, of course, taylor swift. straight ahead on the "cbs weekend news," anger and a search for answers after philadelphia college abruptly shuts down. abruptly shuts down. copd, i had bad days. 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( ♪♪ ) ♪ we end tonig we end tonight in california's napa valley. it's a region about 50 miles northwest of san francisco, best known for the beauty, ideal climate, and bounty of wineries. more than 400 at last count. cbs's danya bacchus takes us aboard an old ride powered in a new way to see it all. >> welcome aboard. >> reporter: it's a new path for an old ride. napa valley's wine train has gone green. >> it is right now the cleanest diesel engine in its class in the world. >> reporter: for 35 years, the luxury train has been wining and dining passengers, chasing stunning views across vast vineyards. now it's riding into the future with a newer cleaner locomotive. one that uses less fuel, has near zero emissions, and follows stringent environmental protection agency standards. nathan davis is the napa valley wine train's general manager. >> if you were to literally count the amount of exhaust, it's zero. when it comes out, it's that clean. >> reporter: that means goodbye to those iconic puffs of billowing black smoke. >> it's nice driving this in the valley and not having that cloud of smoke. >> reporter: engineer artemis rogerson has lived in napa for years. >> people would complain sometimes as the train would go by. so it's nice having this. >> reporter: another perk, a smoother ride. >> trains are usually noisy and bumpy. does it make a difference? >> it does, yes, we believe it does, especially with the sound of the diesel motor when it's running, you just don't hear it. >> reporter: davis plans to turn his whole fleet green by 2025. for now, this engine is leading the way, renamed 1864 for the rail line's founding year. does this ever get old? >> never. it's fun every day. beautiful territory. i got the coolest job in napa. >> reporter: the classic train now on a slightly different track. >> it's a slow-moving industry. but when we move, we get momentum going and we just keep plowing ahead. >> reporter: a symbol of vintage opulence now full speed ahead to a cleaner future. danya bacchus, cbs news, napa valley. >> and who doesn't want a movie smoother ride? that's the "cbs weekend news" for this sunday. i'm jericka duncan in new york. thank you so much for joining us. have a great night. ♪ from cbs news bay area, this is the evening edition. you can't have a destination worthy park. >> now at 6:00, a push to cut off the great highway from cars forever. some people in the area like the idea and some don't. >> it's going to incredibly burden the neighborhood with traffic, parking issues, health issues. plus as we honor the late willie mays, san francisco didn't always welcome the say hey kid, the obstacles he had to overcome and how he gracefully helped change the city's racial dynamics. >> i didn't figure i would have this much trouble trying to buy a place. if we're not driving, if we're not surviving, if we're closing, what happens to the city? >> why an oakland business owner said she had no choice but to shut down one of her stores for good. >> i'm brian hackney. >> i'm andrea nakano. we begin on san francisco's west side where the great highway has been under attack from mother nature as the seawall at ocean beach creeps closer to the roadway. >> also under attack by people who live nearby and who can walk to the ocean. they want to shut down the four-lane road