The National Weather Service issued an Ice Storm Warning until 9 a.m., and New York City has announced that NYC public schools and government offices will be open today. However, the NYC Office of Emergency Management said, "All New Yorkers should exercise caution and allow extra time for travel. During the peak of the morning rush hour, roads and sidewalks may be slippery and dangerous."
The National Weather Service had said, "Freezing rain mixed with sleet will continue through mid-morning bringing a total of 1/2 to 3/4 of an inch of ice accumulations. Exercise extreme caution when traveling." Also helpful: Tips from the NY Red Cross for Winter Storm Safety & Preparedness.