WAVELAND, Miss. – Storm-weary Gulf Coast residents prepared for a new weather onslaught Monday as Tropical Storm Sally churned northward.Jeffrey Gagnard of Chalmette, Louisiana, was spending Sunday in Mississippi helping his parents prepare their home for Sally — and making sure they safely evacuated ahead of the storm.“I mean, after Katrina, anything around here and anything on the water, you’re going to take serious,” he said, as he loaded the back of his SUV with cases of bottled water in a grocery store parking lot in Waveland, Mississippi. “You can’t take anything lightly.”Gagnard said he planned to head back across the state line to prepare his own home for winds and rain Sally was expected to bring to the New Orleans area.Forecasters.