EF-Scale: EF-4

Maximum Estimated Wind Speed: 170-180 mph

Path Length: 40.8 miles

Maximum Path Width: 1700 yards

Start Location: 4 miles northeast of Osage, OK

Start Time: 9:12 pm CDT May 6, 2024

Start Lat/Lon: 36.3304 / -96.3559

End Location: 2 miles east-southeast of Dewey, OK

End Time: 10:07 pm CDT May 6, 2024

End Lat/Lon: 36.789 / -95.900

Fatalities: 2

Injuries: 33

Survey Summary: Radar images and damage photos are available following this summary. Aerial images of the damage are available after all of this event's tornado information. To jump to the aerial images, click the "Barnsdall: aerial images" at the top of this page. Updated 5/17/24: This tornado developed just north of County Road 1701 southeast of Hominy, where trees were uprooted and snapped. The tornado moved northeast and crossed Highway 20, snapping numerous trees and snapping seven metal power poles. The tornado continued to snap and uproot numerous trees between Highway 20 and Barnsdall. Significant tree damage was found in several locations. A well-built home was destroyed just southwest of town, supportive of estimated wind speeds of 170 to 180 mph. Multiple vehicles were thrown and rolled, and trees were stubbed and debarked in this area. The tornado then moved into Barnsdall, causing severe damage to the wax plant on the southeast side of town, and then it severely damaged or destroyed numerous homes on the east side of town. Several homes and a well-built, metal-framed building suggested estimated wind speeds in the 150 to 165 mph range, and one home suggested estimated wind speeds of 165 to 175 mph. Numerous trees were stubbed in the area of some of the higher end damage, which was supportive of these wind speed estimates. Significant tree damage continued northeast of Barnsdall, a few homes were damaged, and outbuildings were destroyed between Barnsdall and Bartlesville. The tornado moved across the southern portion of Bartlesville, and then across the eastern side of town. Lots of trees were snapped or uprooted, and numerous homes and businesses were damaged in town. A few of the homes were severely damaged. A squall line merged with the tornadic supercell, and ultimately ended the tornado process on the northeast side of Bartlesville.