Excerpt - GALVESTON - With the National Hurricane Center's official forecast naming Galveston as Rita's most likely Gulf Coast target later this week, island officials are calling for a voluntary evacuation and considering a mandatory evacuation. Activating its emergency management plan this afternoon, Galveston asked residents to voluntarily leave in preparation of Rita, which is a tropical storm now but is expected to strengthen into a hurricane when it moves into the Gulf later today. By the time it hits the Gulf Coast on Saturday morning, it is expected to be a Category 3 hurricane. The evacuation is to begin...