Upon checking the Weather Underground site it appears that we shall be landing in snow at MSP Friday evening - 40% probability, that is. I've never been on a flight under these conditions. I know that planes must often be deiced before takeoff as heavy snow could cause landing problems. I suppose that snow buildup only occurs near landing altitude so it should be alright. But what if the plane has to circle for awhile before landing? Do they just try to land somewhere else or what? I must be crazy to go on this trip in December. Thanks to anyone who would take the time to calm me down a bit!