The flakes are expected to start falling at about noon and continue through early Monday morning, with at least two inches expected to coat the roads and sidewalks.
“The city is expecting around two to four inches of snow, which can cause slippery conditions Sunday afternoon and evening," the mayor said. “We’re urging New Yorkers to allow for extra travel time, drive slowly and exercise caution when walking or biking.”
The National Weather Service said New Yorkers could see up to half a foot in some spots.
Temperatures are expected to drop to near-freezing Sunday night, causing slick road conditions.
Those who have to be on the road are encouraged to drive slowly and use four-wheel drive if they have it.
Stick to major streets or highways as much as possible and never pump the brakes on an ABS-equipped vehicle.
Seniors should also take extra care when walking outside.