|500 millibar analysis for last Wednesday though Friday|
|Surface weather map for Friday, November 22.|
A reinforcing surge of Arctic air pushed through the central U.S. on Saturday, and by Sunday morning the leading edge of the cold air mass had pushed well into the Gulf of Mexico and halfway through Florida.
|Surface weather map for Sunday, November 24.|
|Snowfall for the 48 hours ending at 7:00 a.m. local time Monday, November 25.|
As of this morning snow cover was extensive across Canada and the central Rockies.
How cold has it been? In the central two-thirds of the country temperatures the last week have been well below normal. Over the weekend minimum temperatures dropped into the single digits and teens as far south as the Ohio River and below freezing from central Texas eastward through central Mississippi and Alabama.
|Minimum temperatures for 7:00 a.m. EST Sunday, November 24.|