This violent tornado initially touched down about 8 miles west of Marland, OK around 9:00 pm CST. It caused some light damage as it moved almost due north into Kay County. The tornado passed to the east and northeast of Tonkawa, OK and destroyed a few homes while its parent supercell storm also produced baseball-sized hail in Tonkawa.

The tornado continued north and moved through the east side of Blackwell, OK at 9:27 pm CST, causing complete destruction in much of the east side of town. Nineteen people were killed in Blackwell, as well as one person to the northeast of Blackwell. Another 280 people were injured. Approximately 80 blocks in town were damaged or destroyed. The damage was massive with 500 homes damaged, 400 homes destroyed, 20 business establishments leveled, and 40 additional businesses were damaged. The tornado passed east of Braman, OK, then turned to the north-northwest and dissipated to the southeast of South Haven, in south central Kansas. Damage to crops in the area was estimated at $15,000 and damage to other property was estimated at $8,000,000.

The supercell thunderstorm also produced another tornado that touched down about 4 miles north of Peckham, OK that moved into Kansas, eventually killing 80 people in and near Udall, KS. Both the Blackwell tornado and Udall, KS tornadoes were rated F5, although the "Udall" tornado produced minimal damage in Oklahoma.

A large, tornado-producing supercell thunderstorm started building southeast of Enid, and then tracked over 50 miles to the northeast causing heavy tornado and hail damage during a two-hour swing across the Garber, Billings, and Tonkawa areas, and then to the Ponca City area. The supercell likely produced a series of tornadoes instead of a single, long-track tornado. Three funnels aloft formed first and then joined to drop the ground at 4:45 pm CST about 5 miles southeast of Enid. The tornado moved northeastward and completely destroyed a farmstead along the initial mile of its path before reaching a width of 0.5 miles. The tornado then veered to the north-northeast for 4.5 miles where it crossed U.S. Highway 64 at a width of 100 yards. It then skipped along an east-northeast course with its path varying from 50 to 1500 yards, and eventually came within 0.25 miles of the southwest edge of Garber before lifting. The tornado and strong thunderstorm downdrafts damaged at least 10 homes, and destroyed barns, granaries, and outbuildings within an area of 3 miles on either side of the storm track. Lightning produced a fire that burned down a barn. A man was injured by flying glass when his automobile was damaged on U.S. Highway 64 east of Enid.

Tornadic damage was evident 4.5 miles northeast of Garber where a new tornado probably formed. Another tornado formed in the area and the two tornadoes skipped a short distance on the ground a short distance toward Billings where a third tornado joined them and dipped to the ground briefly several times. The three tornadoes passed Billings around 5:30 pm CST and destroyed buildings, a 200-barrel oil tank, and damaged many roofs and windows. One family escaped injury when their car was picked up and carried by the tornado as it cross U.S. Interstate Highway I-35 near OK State Highway 15. The main tornado was sighted at 5:50 pm CST near the Marland "Y" and U.S. Highway 177 as it continued near Ponca City. The second tornado headed northward toward Tonkawa and damaged 3 farmsteads and 7 wheat bins, and downed 4 oil rigs. This second tornado lifted near the Salt Fork of the Arkansas River and then touched down in the Irby addition on the southeastern edge of Tonkawa at 6:15 pm CST, and swept northeastward across Second and First Streets to the rodeo grounds. The tornadic winds occurred over an 8-block area included damage to roofs, garages, barns, and power lines. Golf ball size hail was also reported in Tonkawa.

The main tornado continued northeastward toward Ponca City and condensation funnel was observed ending 100 feet above the ground. It was joined west of Ponca City by another tornado and the two tornadoes skirted along the west side of Ponca City. The main tornado traveled over the Selvey Addition where 3 automobiles sustained windows damage and the roofs and windows of homes were damaged. The tornado last struck 2 miles north of the Ponca City Airport where a house was damaged and large barn was twisted off of its foundation, causing a partial collapse of the building.

A tornado touched north of Orlando in Noble County and moved northeastward along a 5-mile path that crossed the southeastern side of Perry and the city dump on the northeastern side. No condensation funnel was observed during the blinding rain, but damage occurred in the vicinity of First and Birch Streets to First and Cedar Streets. One home was moved 6 feet off of its foundation and one of the 3 occupants was injured slightly. A nearby home had windows sucked out of it while several other homes were damaged and two garages were demolished. TV antennas were also twisted and damaged, and a hay barn was blown down on the south edge of Perry. Electric services were knocked out in the southeastern part of Perry and 250 phone customers lost their services. Heavy tornado damage occurred at a drive-in theater 2 miles north of Perry where car speaker units mounted on poles were found as far as 0.5 miles north of the theater. Other wind damage was documented on 3 farms 6 miles north-northeast of Perry where a barn was destroyed and 5 other homes and buildings were damaged. A hog ranch northeast of Red Rock was also heavily damaged.

The "Red Rock" tornado was the third in a series of 9 tornadoes that occurred in Oklahoma during the April 26, 1991 tornado outbreak. The tornado touched down 2.5 miles east of Garber at approximately 5:30 pm CST and moved northeast. The tornado increased to F3 intensity as it passed 4.5 miles south of Billings. Oil tanks were destroyed, well pumps toppled, and power poles snapped. The path width at this point was estimated at 0.5 miles. The tornado grew to a width of 0.75 miles and destroyed a home 5 miles southeast of Billings.

The tornado strengthened to F4 intensity as it neared Interstate 35, debarking many trees and destroying a home. The tornado continued east-northeast across Noble County, passing south of Marland and north of the Otoe Indian Agency, destroying at least two farms along the way. The tornado continued on into Osage County, where its intensity dropped to F3, and moved just to the north of Fairfax where many trees were uprooted and a house was damaged. Ten miles west of Pawhuska a large oil rig with an 18-inch foundation was toppled.

The tornado lifted at 6:55 pm CST 9 miles west-northwest of Pawhuska, with a total path length of 66 miles. Damage was estimated at $500 000. Damage incurred at one totally-destroyed farm alone was estimated at $200,000. Several county roads were destroyed when large sections of asphalt were blown away. There were six injuries in this tornado, but none were serious.

Severe thunderstorms affected parts of western and central Oklahoma from late afternoon of April 21st through the early morning of April 22nd. This tornado touched down about 1 mile northeast of Billings in Noble County and destroyed a barn and 2 outbuildings. In addition, trees were blown down and several house windows were blown out, numerous farm animals were killed, and 2 semis were blown over on U.S. Interstate Highway I-35 near mile marker 207. The driver of one of the trucks was injured by broken glass.

This violent tornado, which killed two people, was the last of 20 tornadoes produced by one cyclic supercell thunderstorm which moved over Caddo, Canadian, Kingfisher, Logan, Payne and Noble counties during the May 3, 1999 tornado outbreak. The tornado formed about 7 miles southwest of Crescent, OK and tracked northeast for 39 miles before dissipating east of Perry, OK in Noble County. A very unusual event took place in Logan County where this tornado, and a second tornado produced by another supercell thunderstorm about 80 minutes later, affected much of the same area between Crescent and Mulhall in Logan County. Assessment of damage from the individual tornadoes was difficult, and in some areas nearly impossible, due to overlapping damage paths.

Damage from the tornado was first observed about 2 miles west of the intersection of OK State Highway 33 and OK State Highway 74 near Twin Lakes Road, where 2 homes and other businesses were damaged. The width of damage is believed to have increased to nearly 1 mile as it tracked east of Crescent, OK where numerous homes suffered major damage. Damage to 1 brick residence 3 miles east-southeast of Crescent was rated F4. All walls were knocked down, and part of the foundation was removed.

The tornado then tracked through the small community of Abell, OK (6 miles southwest of Mulhall, OK), where 1 woman was killed in her home, and 6 people were injured, and then finally through Mulhall. Approximately 60%-70% of Mulhall's 130 homes were severely damaged or destroyed. In addition, Mulhall's primary water source, a water tower, and the Mulhall/Orlando Elementary School were destroyed.

Lesser damage continued to about ½ mile west of the Logan/Payne County border where tombstones and fences were blown over. Along U.S. Interstate Highway I-35 in northwest Payne County, a semi-truck trailer was overturned, and 2 cars were flipped. The driver of one of the cars was killed when his vehicle, parked under the U.S. Interstate Highway I-35 overpass at mile-marker 176.5, was picked up and dropped on its top.

In Noble County, the tornado produced major structural damage in the Boonsboro Addition, a mobile home park located along OK State Highway 86, 6 miles south of Perry, OK. Approximately 20 mobile homes were destroyed, and dozens of others were damaged. Damage continued northward to a location 3 miles east of Perry, where 3 homes suffered major damage on U.S. Highway 64 and 1 critical injury was reported. In total, approximately 25 homes were destroyed in Noble County, and 50 homes were damaged. Total damage was estimated at $13.1 million.