..FREEZE WARNING REMAINS IN EFFECT FROM 6 PM CST THIS EVENING TO 9 AM CDT SUNDAY... * WHAT...For tonight into Sunday morning, sub-freezing temperatures in lower 20s expected. * WHERE...Portions of northeast Louisiana, central, east central, north central, northeast, northwest and west central Mississippi and southeast Arkansas. * WHEN...Freeze Warning, from 6 PM CST this evening to 9 AM CDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing.