Observed 2 bright orange glowing cigar shaped objects. sky was cloudy and i noticed that se sky was illuminated. then, 2 bright orange objects emerged from clouds and were then flying aprx. 300 feet from ground. objects flew for aprx. 1 mile then shot back up into clouds. glow in clouds was visible for about 20 seconds. after this, one more object followed and 2-3 minutes later 2 more followed same path. objects were glowing orange, seemed to be very hot. i could see "sparks" or small pieces kind of being shed by objects. i'm not entirely sure but it's very possible that these objects may have been flying over lake michigan when i lost sight of them. there was no noise from objects and they were flying extremely fast, at least 3 times the speed of local 727's from midway airport which is about 10 miles north of me.