At 10:11 a.m. CDT ( 1511 UTC ) , Robert Ricks , a meteorologist with the New Orleans\/Baton Rouge NWS office , issued the following statement : A few minutes later , at 10:11 a.m. CDT ( 1511 UTC ) , Robert Ricks , a meteorologist with the New Orleans\/Baton Rouge NWS office , issued the following statement : An equally-explicit bulletin was repeated at 4:13 p.m. CDT .