According to a phone call from a friend who works at Ted Stevens Intl here in ANC:

Crystal Mikula, Cynthia Mikula, and Mother were just removed from an Alaska Air flight about 20 minutes ago. They were yelling and behaving disorderly. They were not taken into custody (appearantly) but were simply removed from the plane.

I don't know if the yelling caused the removal or was a result of being removed. I will keep you updated as additional details are passed to me. I would assume that http://www.adn.com will have something about it tomorrow.