October : Storm surge stretches from Pascagoula , Mississippi , to Sabine , Texas . Louisiana governor declares state of emergency . New Orleans mayor warns residents to prepare for evacuation . `` The number of evacuated personnel will depend on weather conditions , and we will only transport personnel if safe to do so . '' Shell joins BP and Shell in evacuating offshore platforms .
October : Storm surge stretches from Pascagoula , Mississippi , to Sabine , Texas . Louisiana governor declares state of emergency . New Orleans mayor warns residents to prepare for evacuation . Shell joins BP and Shell in evacuating offshore platforms .