Sunday morning started well above average in the upper 60s, but as the arctic front moved through, temperatures quickly crashed nearly 20 degrees in an hour. Northwesterly winds gusting around 40 mph made it feel even colder outside.

The National Weather Service has issued a Cold Weather Advisory that will stay in effect until 10 a.m. Monday. Be sure to bundle up.

The front had already swept the region by 11 a.m., the weather service said, and temperatures will continue to drop behind it for the rest of the day. Following a high of around 60 degrees Sunday morning,