SPC Stats

Path length: 3.4 miles

Width:  50 yards

Fatalities:  0

Injuries:  0

Rating:  EF1

County:  Mcclain, Cleveland

A total of 9 tornadoes were confirmed in Oklahoma on October 21, 2017. They were all rated EF1 except two.  Those have unknown ratings in the SPC database.  We look at one of these tornadoes that caused tremendous damage in parts of McClain and Cleveland Counties.  The path was fairly short at 3.4 miles.   It developed just north of State Highway 9 and moved east damaging a business and destroying a shed. As it continued eastward, the tornado caused damage at the Riverwind Casino and Hotel.  The Beach Boys were holding a concert inside.  There were no fatalities and no injuries reported with this event.

Storm Data Entry


This tornado developed just north of State Highway 9 and just west of Santa Fe Avenue where tree damage was noted. The tornado moved east damaging a business and destroying a shed along Highway 9. The tornado turned southeast crossing Highway 9 and passed near the Riverwind Casino and Hotel along with strong winds on the south flank of the tornado. Trees were snapped just west of the casino. At the casino, two air conditioner units were displaced from their pedestal on the roof of the building, which allowed rain inside the structure. Some roof facade damage was also noted at the casino. Just south at the adjacent hotel, strong winds created some roof facade and siding damage (see adjacent Thunderstorm Wind Entry).

The tornado crossed Interstate 35 and damaged businesses and destroyed at least one shed between the interstate and the Canadian River before moving into inaccessible areas near the river and crossing into Cleveland County south of Norman.


The tornado moved into Cleveland County in inaccessible areas along the Canadian River and generally remained south of the neighborhoods in south Norman south of Highway 9. Some tree and fence damage was observed at the southern end of South Canadian Trails which is where the tornado is believed to have dissipated.

Tornado Path

SPC & NCDC coordinates:  

Start: 35.1832 / -97.513  

Second Point:  35.1818  /  -97.4784   

End: 35.1783 / -97.4543

Note:  Exact tornado path may not be straight and/or continuous.

Damage East of I-35 via NWS Norman


Meteorologist Aaron Brackett and photojournalist Kevin Josefy caught a tornado coming through the Riverwind Casino.  Via Oklahoma’s News 4.


Newspaper Clippings

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