What Amy said.
Keep in mind it takes at least 10 min to check your bag, and another 20 to walk to the corral. If you want a port-a-potty stop in there, add 15 min for waiting in line. They close the corrals at 5:30.
As to the cold, I would recommend getting the following at walmart, target, big lots, dollar store or a thrift store, that you don't care about discarding:
1) a pair of cheap gloves
2) a cheap blanket earmuffs or a headband that covers your ears (bondi bands work, and also work for sweat wicking so you may want it anyway)
4) a zip up hoodie or sweatshirt, and/or sweatpants
They donate all discarding clothing, etc. so you can consider it for a good cause.
Thank you! It helps me to know what exactly we need to do that morning and by what time. This is my first race with corrals, so I'm new to that. I have limited experience in organized runs. For our Komen race you just grab a spot on the street where you can find one. And as long as I'm there before they shoot the gun, I'm good to go. Looks like we'll need to aim for arriving by 4:30 to get in our spot on time. Yikes, that is early!! Hopefully I'll be so excited I can get up on time!