Determine whether the weather conditions below would occur ahead of, along, or behind an occluded front.
1) Wind from northwest
2) Air is humid
3) Wind from southeast
4) Temperature is cold
5) Temperature is cool
6) Sky is cloudy
7) 1. ahead of the occluded front
8) 2. behind the occluded front
9) 3. could be ahead of or behind the occluded front