The CPHC issued a tropical storm warning for Oahu on September 11 which was upgraded to a hurricane warning later that day. Though not hit by the hurricane, Iniki's large wind field caused nearly 30,000 people to evacuate to 110 public shelters in Oahu. Public school buildings acted as shelters, and were for refuge only, meaning they did not provide food, cots, blankets, medications or other comfort items. Roughly one-third of Oahu's population participated in the evacuation, though many others went to the house of a family member or friend for shelter. The execution of the evacuations went well, beginning with the vulnerable coastal area. For those in need, vans and buses gave emergency transportation, while police manned certain overused intersections. The two main problems that occurred during the evacuation were lack of parking at shelters and exit routes for the coastlines.