The Department of Sanitation says the alert starts at 7:00 a.m.
A snow alert is a readiness notification of a possible snow storm alerting DSNY personnel and starting initial equipment readiness for storm response.
In a snow alert, salt spreaders are loaded and plows attached.
New York City is under a winter storm watch for Wednesday and Wednesday night.
AccuWeather predicts around 6 inches of snow from the storm.