stop about five and a half hours from now. sunlin is keeping an eye on flights at washington's regan international airport. alexandra field is in new york where dozens of salt trucks for ready for the stleereets, and t rowlands is just west of chicago where the windchill is about to become a serious factor, and meteorologist alexandra steele updating about the latest warnings and advisories. let's begin in boston with margaret. you have been out in this all day long, it's coming down, and not too far away from the zero flights at logan. >> yeah, that's right. and brooke, it's going to get a lot worse today. we got our measuring stick. here's an update. it's coming in about 2 1/2 inches or so. it's supposed to get up to a foot of snow, all the way up to here by tomorrow morning. and now, as you were saying, logan airport, they're going to close at 8:30 p.m., they're going to stop flights until noon