One cold front that came through last night and introduced some cooler temperatures. There's a chance the cold front could arrive sooner.
To the south, while some snow could mix in with rain for a time before precipitation ends, most of the storm will bring a cold, driving rain from New York City through Philadelphia to Washington, D.C.
Washington's average snow in November is 0.5 inches, but measurable snow occurs only about once every two to three years, on average. Thursday and Friday continue to look cold with highs only in the low/mid 30s, with another, even colder, blast coming early next week.
We'll get a brief break from winter for the weekend.
Saturday's highs will be in the upper 60s and lower 70s, and Sunday's highs will be in the upper 70s to low 80s.
It's a mild start to the day out there today with temperatures into the low to mid 50s, but this will be the warmest morning we will see over the next 10 days.
GFS model forecast for early Tuesday morning.
By Friday, we are still looking at mostly sunny skies in south-central Montana with a couple minor impulses of rain or snow tracking across the Hi-Line. With winds gusting to 35 miles per hour, the "biting wind chill will make it feel like 20s and 30s all day", Dan says.
"The National Weather Service is forecasting 170 potential daily record cold high temperatures Monday to Wednesday", Weather Channel meteorologist Jonathan Erdman said in a tweet. Wind chills feel like the lower to middle 30s. However, the bullseye for snow will be from northern IN to northern Vermont, especially IN areas prone to lake effect enhanced snow.
Showers across Northeast Ohio have already started.
Tuesday: Rain or snow possible.
Numerous details of this arctic outbreak are still to be determined.
The wet weather will be accompanied by "strengthening" north-easterly winds, with many areas within the yellow zone seeing between up to 1.5 inches of rain, the Met Office said.
A wide swath of snow will stretch from Arkansas to ME, with the heaviest into parts of Ohio, Kentucky, and Western New York.