Last night was a chilly night for many across the central and southern plains.
Numerous states along the Mississippi and Ohio Rivers were under either frost or freeze advisories.
The National Weather Service issues these when temperatures will be cold enough to harm tender vegetation.
A frost advisory means to protect tender plants while the temperature flirts with freezing for a few hours.
A freeze advisory means a hard freeze is expected (usually at or below 28° for 4 to 6 hours) and that the growing season will be over.
The weather is extremely quite around the nation right now with no huge storms expected this week.
A northwest flow of wind over the open waters of the Great Lakes will keep some lake effect snow showers in the forecast over the next few days in that part of the world.