karen trave vers has -- travers has the latest. >> reporter: what does april snow bring? folks in upstate new york are about to find out. a streak storm dumped snow. >> it's bad. it's about four to five inches. trees are breaking all over the place. you can stand there and listen to them. >> reporter: along the east coast warmer temperatures meant rain instead of snow with winds whipping up to 50 miles an hour. this rocky late april weather kept off the winter season. it was the warmest in 40 years. great ones for the lucky ones who hit the beach or those who hit the slopes in bathing suits. in march a record number of tornadoes ripped across the midwest from the south causing significant damage. temperatures have been fluctuating like a see saw. last week in philadelphia it was nearly 90. boston it was so hot that runners opted to skip the marathon. over the weekend these fields inial vier a, new york, were packed with soccer games. today they're a slushy mess. heavy rains throughout the day melted all of that morning snow and probably all of the snow men. karen travers,

karen trave vers has the -- travers has the story. >> reporter: an alarming new study says maybe. the study says more than 500 autistic children are in california and compared them to the same number who do the not have autism. they said the risk was 60% higher among those born to mothers who were owe berks hypertensive or diabetic. >> now scientists have to explain y what is this about obesity. is it the high levels of sugar in the blood, high levels of insulin or the chronic inflammation. >> reporter: one in 88 american children now have autism. that's up from one in 110 in 2006. obesity is also on the rise in the u.s. affecting more than one third of american adults but medical experts say there may not be enough information to say whether the two are connected. >> if you're pregnant and you're obese, wouldn't lose sleep over the study. i think the chances that your obesity will cause obesity in your child as -- are as of yet unprove & if you really want to give your child the best start in the world, then you have to pay very careful attention to your own health. >> reporter: