and into the day. and tornado after tornado, marching across the southern plains. but little -- little in the form of major damage. some of the hail was very large. measuring 3 inches in diameter. most severe storms today are likely from houston to north of little rock. and tomorrow, the danger zone is in the deep south from greenville, mississippi, to memphis. >> there is now hope for people with the most severe form of multiple sclerosis. fda approved the first drug for primary progressive of ms. national multiple sclerosis society called this a game changer. the drug could cost $65,000 a year. >> amazon is testing a drive-up grocery program in seattle. the new amazon fresh pickup service allows customers to place grocery orders on line, and pick them up at amazon fresh locations. the orders are ready in 15 minutes. right now, fresh pickup is only available to

service will be free for amazon prime members. >> u.s. women's hockey team avoid a strike while striking an hiss toreic deal for themselves and sports. now, players have reached a four-year deal with the usa hockey to increase their wages. a nonolympic year, will jump from $24,000 to $71,000 a year. usa hockey will create advisory group to advance girls and women's hockey. the deal means the team has endped its threatened boycott of the world championships. politics put aside. at leasten the lower digs vuf the women's world championships to. say south korea announced it will allow north korean at least the team, to compete on its soil. next month. north korean athletes have not competed in the south since the 2014 asian games. not that long ago. two nations are scheduled to meet on the ice, april 6th. >> baseball season a few days await. one player starting season with the braves minor

for his name. >> matt foley. a catcher. he shares the same name with -- legendary character. that long time fans of "saturday night live" will no doubt remember. >> i am 35 years old. i am divorced. and i licve in a van down by th river. >> ha-ha. first. that's chris farley as matt foley, the loud, confrontational, lovable, clumsy, motivational speaker to point to hardships to motivate. matt foley fully embraced the character. a sticker on one of his balts. with depiction of farley as the foley. wearing a braves hat. merged the two characters. also posted pay picture of himself with the caption, hat says who i played for. the shirlt says i live in a van done by the river. oh, god that sketch

laugh out loud everytime. the part where he falls through the coffee table. i know it coming. gets me every time. >> it -- for frzi love that. >> i miss chris farley. >> think of "fom "tommy boy." matt foley is embracing it. coming up. standoff overnight in california. a woman barricades herself inside. 150-foot high crane. >> new roll for the first daughter. why ivanka's trump's increased role in the white house is making headlines. first, a look at today's temperatures. >> announcer: world news now weather brought to you by riddex.

so this was a terrifying accident in the angelos national forest captured by the helmet-cam of another motor seeklist. he lost control on his bike on the winding road and flew off over the cliff. he and his bike got caught in a tree. had to be air lifted, see there, to safety. somehow suffered a broke ep shoulder. >> wow. >> high drama overdowntown los angeles as well. a woman scaled

at a construction site. power to the crane was turned off. she couldn't do any, any harm, or any work as well. a swat team and firefighters climbed up. started communicating with the woman. she was taken to the hospital for mental health evaluation. >> ivanka trump key part of her father's businesses, presidential campaign. now moving into a new role at the white house. >> taken the position of first daughter into unprecedented territory. abc's karen traverse explains why it is so ground breaking. >> she has been a constant presence at her father's side and now ivanka trump moving beyond supportive daughter into the west wing. taking on a formal rolen her father's administration. >> it is my pleasure to welcome such incredible will when, including my daughter. president trump at the white house monday. crediting ivanka for helping lead initiative to promote women business leaders and entrepreneurs. >> i feel very blessed to h

course past several months and hear your personalyour journeys. ivanka will have a west wing office, security clearance and government issued communications device. one thing she went have -- an official title. unlike her husband jared kushner unpaid senior adviser to the president. ivanka will not be a government employee. in a statement she said she will voluntarily follow all the ethics rules placed on government employees. expected to focus onner use she personally cares about. paid maternity leave, child care tax credit plan. but front and center at a wide range of white house events. and there is really no press denlt for an adult child of a president to take on such a high profile role. the fact that she now would be in the white house have a desk there be more visible in the west wing. i think send a message that her opinion matters. and

>> reporter: there have been speculation that with melania trump living in new york for now. that ivanka trump could take on traditional first lady duties. for now, ivanka has the stayed away from ceremonial appearances focusing on policy issues. but her role here at the white house seems to be deliberately ambiguous and perhaps in the future, her role could expand. karen travellerrs, abc news. >> could a metabolic chamber hold the answer to weight loss. >> one of our colleagues went in to find out. that's next.

♪

just because there are no song as but closets. >> also not a closet. >> chamber. >> all about to make more sense. couple week ago we did aster about mara schiavocampo, voluntarily checking herself into a chamber for 24 hours. >> our guy, still in my brain. test a weight loss technique. so did it work? ♪ ♪ >> reporter: this tiny room is actually the most cutting edge way to measure exactly how many calories your body is burning. i spent a fall day locked inside the metabolic chamber at mount sinai in new york. to test some commonly held beliefs about diet and exercise. and learn a lot more about how my body works and what those lessons can teach everybody about how their body work. first up. a showdown between good old-fashioned cardioand high intensity interval training or hiit, one of

workout trend to. find out i did a 20-minute run at moderate pace of 6 miles per hour. four hours later i did a 30 minute hiit workout. brief period of intense exercise followed by period of rest. and burn more calories in less time. but of chamber says for me that is wrong. the slow burning, 10.7 calories a minute. 7 per hiit. almost 53% more effective. very, very important. for a lot of different processes in the body. however when you do high intensity interval training, you also are resting. right. for a long time. >> reporter: next up, measuring afterburn. how many calories your body continued burning at an elevated level after you have stopped exercising. though something goes on for hours. that wasn't the case with either of my workouts. i burned just 34 calories after the

my bodyal levels within minutes. >> energy burned after the accident its not significant. >> how much time and energy does it take my bed to burn what i eat. to measure this i spent six hours in a different, much smaller chamber. >> hello? >> all it a high-carb, high sugar, 750 calorie breakfast of a blue berry muffin and sweetened coffee drink. my body burned through it quickly. in just four hours. using only about 80 calories. compared to a high pro fine meal which would have taken annest mated six hours to burn using almost 200 calories. more than double the high carb breakfast. mara schiavocampo, abc news, new york. okay. if i get to eat a 780 calorie breakfast as part of weight loss experime experiment. >> i'm in. >> it's called tuesday. >> what if i do it if i not part of an experiment?

just singing. ♪ ♪ the closet e♪ >> what he is saying? >> he is opening the closet elt.

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breathe happy with new febreze. ♪ ♪ >> oh. >> recognize most of those. >> i didn't either at all. finally this half-hour, little boy who couldn't come home and couldn't see his friend for 18 months. for a lot of that time he was quarantined from his own family. david muir has more t

>> reporter: take a close look at 5-year-old carter, that super hero shirt and smile and about to undergo a battle. diagnosed with cancer a year and a half ago, he was given a 5% chance of survival. but he was ready to fight. and for much of that time, he had to fight alone. quarantined for 100 days. kept in the hospital for 1 months. kept from loved ones for his own safety. because his immune system was compromised. family sending signs, we love you carter. he fought a tumor. six round of chemotherapy, surgery, two ben marrow transplants and 20 round of radiation. year and a half later he is coming home. what carter didn't know was that the whole town was waiting. >> here we are. cancer-free. as of yesterday. >> there he comes around the door. his batman hat, cape

when he saw everyone, just look at his smile.anwh and i pray the cancer stays away and he gets to grow up and live. and bea little buy right now. one step at a time. proving thit fighter is no match for cancer. waving from the firetruck. his parent sending us the photo. finally home after the whole town welcomed him. david muir, abc news, new york. so perfect. with his batman halt on. superman cape on. >> a big smile on his face. didn't take long for him to start smiling. >> nope. >> great. >> unprecedented abc news, honored. winner for the third straight year with edward r. murrow award for overall excellence in television and radio. er

this morning on "world news now" -- another round of destructive storms. >> milli with overnight storms taking their toll on texas. multiple tornados are reported across the state. as the south braces for more damaging wind and hail. >> teenagers who were burglars shot and killed while breaking into a house in oklahoma. now the alleged getaway driver who never fired a shot is underarrest. charged in their deaths. >> a major shift in policy regarding your privacy and the internet. republicans in washington have voted to roll back an obama-era protection. so should service providers be allowed to sell your browsing history to advertisers? >> and, no highlights? no problem, man. we're tipping our hats to