I just checked and all of my sprouts look fine and some new ones have have popped up. We had below freezing temps and snow for two days and nights, but these little greenhouses are amazing. The sun is shining today and I went out and just stood in it for a while, even though it is only 42 degrees. I'm going to wintersow seven more jugs tomorrow and am going to plant my peppers inside. Later, when it gets warmer, I'm going to try wintersowing some peppers and tomatoes. I'll do backups inside just in case.
The picture shows the Shirley poppies. They look happy. As you can see, I got a little carried away and will have to plant clumps.