are they OK??? temp went down about 2 hours

[bethsplace]

I was stupid

and ran out of gas in the night and the heat went out in the House Luckily I woke up about 4:30 my Husband went to bed around 2:00 and said temp was good at 100 in the incubator when I checked it at 4:30 it was around 97-98 I quickly put a larger bulb in and got it right back up but do you think it hurt them they are due to hatch on the Feb 21?

 

[Joyryder]

Chicks are really hardy. The temp would have dropped more than that if a hen was sitting on them and got up to eat, which would happen at least once a day. I think its a non event.