A winter storm warning is in effect for almost the entire region from Thursday morning into Friday morning.
We’ll have a partly to mostly cloudy sky early tonight and temperatures drop fast. Clouds will increase and thicken through the overnight hours. Lows tonight will be in the teens to the lower 20s. Snow will start to develop near the Maryland border by sunrise Thursday morning and then will spread northward from the morning through the midday hours. The snow will mix with sleet and freezing rain in places for a time, especially near and west of Route 219 and south of I-80. The farther north and east you get the less of a mix there will be and the more that the snow will accumulate with some places near and east of I-99 getting a half foot of snow by the morning. This mix will change back to snow Thursday night and there will be another 3-6” additional accumulation across the board. Temperatures on Thursday will slowly rise, and likely would not reach above freezing until later Thursday night. There will be widespread travel issues into early Friday. This storm is a fast mover and we will have the snow taper to scattered snow showers by Friday morning. Temperatures will briefly rise into the 40s early Friday before chillier air returns to the region with clouds, some sunshine and scattered snow showers. Saturday will be brisk and chilly with highs in the 30s to near 40 with a mix of clouds and sunshine and only the chance for a flurry. Another push of cold air will arrive with a gusty wind on Sunday with highs in the upper 20s to the middle 30s. We’ll warm back to near average in time for Thanksgiving.