(Bloomberg) -- Flights are already being grounded as a winter storm bears down on Texas and the US South, bringing snow and ice that could coat power lines and trigger blackouts.Most Read from BloombergNYC Condo Owners May Bear Costs of Landmark Green Building LawNYC’s Subway Violence Deters Drive to Bring Workers Back to OfficeDutch Central Bank Restores Amsterdam’s ‘Ugliest Building’Can American Drivers Learn to Love Roundabouts?Can States Hit the Brakes on Runaway Roadbuilding?As of 2:45 p.m.