A multiday outbreak of severe weather is underway and will spread from the Great Plains to the Midwest and South through Tuesday.

Tornadoes – some possibly strong – damaging hail and destructive straight-line winds are all potential threats.

Happening Now

Numerous tornadoes struck Colorado, Kansas, Oklahoma and Nebraska Sunday afternoon and evening. For all of Sunday's news as it happened, read our updates here.

The biggest threat overnight is across the Central and Southern Plains. These storms could bring a significant threat of tornadoes, some possibly strong, as well as wind damage and large hail, particularly from central Kansas into Oklahoma. If you live in the Plains, it is worth having several ways to receive warnings overnight that will wake you up in case severe weather comes your way.

Here is where the watches, warnings and thunderstorms are right now:

This Week's Forecast

Monday: The primary threat of severe weather will remain parked over the Central and Southern Plains to perhaps as far north and east as southern Iowa, much of Missouri and northwest Arkansas.

The greatest chance of supercell thunderstorms that could spawn strong tornadoes, damaging hail and high winds is in much of Missouri, central and eastern Oklahoma into southeast Kansas. That includes Oklahoma City and Tulsa, again.

Tuesday: The severe threat is expected to shift farther east toward the Ark-La-Tex and mid-Mississippi Valley. It's too early to determine specific impacts, so check back to The Weather Channel App and weather.com for updates on this forecast through the next several days and we'll provide more information. For now, the Storm Prediction Center is warning of large to very large hail and damaging winds.

Severe Weather Recap

On Thursday, an EF2 tornado was confirmed in northwest Wisconsin near New Richmond. In southeast Wisconsin, at least one damaging tornado tore through parts of Dodge County, including the towns of Juneau and Mayville.

In southern Michigan, a pair of EF0 tornadoes were confirmed near and north of Battle Creek Thursday.

Softball size hail - 4 inches in diameter - has been reported in multiple locations:

-Atloona, Wisconsin (Thursday)

-Barlow, Kentucky (Friday)

-Sullivan, Indiana (Friday)

On Friday, a tornado moved through western and northern St. Louis. The National Weather Service Office in St. Louis confirmed parts of the tornado's path had level EF3 intensity. Latest news on this tornado can be found here.

Other tornadoes were spotted near Sullivan, Indiana, and Marion, Illinois, which may have been a strong tornado according to radar. Later in the evening, a strong to intense tornado stuck near Somerset, Kentucky.

Over the course of Thursday and Friday, there were over 50 tornado reports, according to the Storm Prediction Center.

On Saturday, most of the storm reports were from damaging winds and large hail. However, there was one tornado report in Garvin County, Oklahoma. In Wise County, Texas there were reports of baseball sized hail.

The outbreak marks the end of a relatively quiet period. There hasn't been a day with more than 10 tornado reports since May 6, and there hasn't been a day with more than 20 reports in nearly a month (April 20).

Chris Dolce has been a senior digital meteorologist with weather.com for nearly 15 years after beginning his career with The Weather Channel in the early 2000s.