A February nor'easter announces itself over the Great South Bay hours before it ever reaches the streets. Nolan Landscape & Gardening Inc. answers those storms in Babylon with plowing, shoveling, salting and sanding — driveways, walkways and lots taken back down to pavement. Wind off the water packs the snow into drifts against every step and stoop in town. Working straight through a night like that and leaving a clean, safe path behind is genuinely good work. When the sky finally clears, Babylon gets on with its morning as though nothing had happened.