Snowmobile Experts?

[uhhh...]

You and your friends are planning a trip into the backcountry. It snowed two feet in the last 48 hours. It's late in the season and the temperatures have been fluctuating a lot recently. It's also been windy all week. Describe all the steps you should take before you make your first turns. Also describe what sort of terrain those first turns will be on? Be Specific Please. Lets see who as the best answer.