The coach appears to walk in front of the car twice when he tries to kill himself.
Since this takes place in January, shortly after Jenna's death, there probably should have been at least some snow on the ground, sidewalks, and rooftops since Smallville is in Kansas.
According to Lana, Julia was in the hospital since junior high until last month, for years. However, the article Clark shows Jordan is an obituary dated the next week after the accident, and scheduling her funeral for the next day. Also, the obituary calls her father "Principal Altman", although it is possible he resigned from that post during these years.