H?ere's what we know as of Tuesday morning:

-?The town of Barnsdall, Oklahoma, was struck by a large tornado overnight, and the damage to structures is severe. At least one person died, according to the Osage County Sheriff, and numerous others were injured. A nursing home was also hit by the twister and residents are being relocated. The town of 1,000 located about 40 miles north of Tulsa was also struck by an EF1 tornado on April 1.

-?Northeast of Barnsdall, major structural damage was also reported in the town of Bartlesville. No deaths have been confirmed and all injuries there are believed to be minor.

-?As the storms marched east early Tuesday, a radar-confirmed tornado with a debris signature struck near the town of Sullivan, Missouri, damaging this bar. The high school was also damaged in the town located about an hour southwest of St. Louis, according to KSDK.com. The National Weather Service (NWS) surveyed the damage and rated the tornado EF1.

H?ere were our updates from throughout the day Monday:

(9:00 p.m. ET) Where Is The Biggest Threat Overnight?

Tonight, a corridor stretching from western and central Oklahoma to central and eastern Kansas faces the most imminent threat. This swath encompasses metropolitan areas like Oklahoma City and Wichita. Strong to intense tornadoes with a rating of EF3 or greater are a real possibility, and this danger could persist into the early hours of Tuesday. As the night progresses, severe thunderstorms are expected to advance eastward into the Missouri Valley, amplifying the risk in that path. Residents of these areas should take immediate precautions and stay vigilant.