that is to say "crews and staffing may be affected on Rigs EAST of a line drawn south from New Orleans".
Incidently this morning models have made this long-duration windstorm look more like a sure thing however the US main model is slower and weaker with development in the western Carribean than the European or the Canadian which are more to much more agressive. In fact the Euro and Canadian both develop low pressure at Tropical Storm strength between 4.5-7 days from now, with the Canadian faster, stronger and further west into the Central Gulf, and the Euro with a storm still over the NW carribean in about 6 days from now. The US model takes until late next Tuesday to generate what appears to be a tropical storm on the map, roughly in the SE gulf near the western tip of Cuba.