Shoveled out my melt/pour area yesterday after work so I could access the shed where I keep my furnace in hopes of getting a 2nd chance at pouring a couple of failed (lost foam) castings I poured on the last snow-free day we had for XMas gifts tonight or tomorrow. I had one of them come out OK, but the second pour from the second melt was short, and for one pattern I think I let up on pouring a bit too soon, hard to say through all the foam-smoke and flame, but the sprue was mostly collapsed when I dug it up... Lost foam with no coatings is great because you can use very fine sand to get a nice finish and be carving foam one minute then pouring an hour later, but it is not the most reliable method.
Woke up today to a raging blizzard, of course... It has stopped though, so I'll be out there shovelling again later today. I still think I can pull it off, but I'm prepared to spend Saturday enduring the crunch at the mall if need be.