What to expect Thursday in Delaware with snow, sleet and freezing rain on the way Brandon Holveck, Delaware News Journal Another winter storm comes into Delaware Thursday Replay Video UP NEXT Forecasts are calling for up to 6 inches of snow in parts of Delaware as winter storms continue to sweep across the country. Snow began falling early Thursday in New Castle County and is expected to continue until midday when it will change to sleet and freezing rain. A winter storm warning is in effect for New Castle County until 10 a.m. Friday. A less severe winter weather advisory is in effect in parts of Kent and Sussex Counties until 10 a.m. Friday where slick roads are expected as a result of snow, sleet and freezing rain.