The National Weather Service has announced a Winter Storm Warning to remain in effect primarily for Greene and Ulster counties until N12 noon on Thursday, March 24. Heavy wet now with accumulations of 6 to 12 inches are expected for the Catskill Mountains and environs into Thursday morning, although impacts into more snow and poor visibility will make for dangerous travel and roads in the mountains will become snow covered and very slippery. Heavy wet snow may cause some isolated downed tree limbs and power lines resulting in power outages. Strong winds are also possible. For Columbia County and the Hudson Valley, the forecast is for two to four inches of similar wet, heavy snow, with clearing expected by noon tomorrow. School closings for tomorrow are already being announced for most area educational institutions.