Severe storms ravaged eastern Oklahoma late into Monday night, with a confirmed tornado on the ground just west of Skiatook Lake around 9:15 p.m. The storm tracked to the northeast through Barnsdall toward the Bartlesville area before being absorbed by the squall line to the west. Witnesses reported seeing a large wedge tornado near Barnsdall, where damage has been reported.
As the storms moved east, they were expected to become stronger and more severe, with hail, wind, and isolated tornadoes as the main threats. A tornado watch was in effect until 11 p.m. Monday, including Tulsa County. Meteorologist Kirsten Lang provided the forecast for severe weather expected Monday night.