An outbreak of severe thunderstorms and tornadoes occurred during the afternoon and evening of May 20th. A funnel was sighted over Pryor initially and then a tornado touched down 3 miles southwest of Spavinaw at 11:10 pm CST where it struck a farmstead and produced $40,000 in damages to the farm home and destroyed all of the outbuildings. The tornado moved northeastward through Spavinaw and then struck several more farmsteads northeast of the city. Extensive damage occurred along the tornado's path and one person was injured when a house was destroyed in Spavinaw. The tornado continued to the northeast into Delaware County and damaged 3 more farmsteads near the Deerlick community or 4 miles northeast of Jay. There were reports of numerous funnels in the two-county area.

A tornado touched down just south of Adair and moved to the east-northeast before dissipating just to the southeast of Pensacola. Two mobile homes and several farmsteads received heavy damage along the tornado's path. One person was injured when a mobile home was blown over.

The tornado moved northeastward from northeast of Strang and destroyed 3 fishing camps near Disney to near Dennis, before dissipating just west of Grove. Over 40 families had their homes destroyed. Two people were injured in a demolished farm home northeast of Strang and one person was injured by flying glass at one of the fishing camps. Trees and utility line blocked local roads and a small amount of large hail fell in the area.

A small tornado touched down briefly and damaged two farmsteads near Mazie before it lifted and passed northward as a funnel over the town. The first farm was the hardest hit as all of the windows in the farmhouse and barn were blown out, and parts of each roof were torn off. Two metal grain storage bins were destroyed and a combine was moved northward and completely across the barnyard. One child sustained minor cuts when flying debris smashed a car windows as the car entered the yard. The adjoining farm just to the north received damage to a farmhouse where a back porch was torn off, and windows and fences were damaged. More damage occurred to other buildings and croplands along the tornado's path.

A line of severe thunderstorms moved southeastward across northeastern Oklahoma during the late evening of January 25th, providing a swath of scattered damage from northern Tulsa County to the southwest quadrant of Ottawa County. A tornado was sighted in the Sequoyah area north of Claremore in Rogers County at 10:20 pm CST where a mobile home and 2 barns were demolished, a horse trailer damaged, and multiple fences cluttered with wads of sheet metal roofing and siding material. This tornado was again spotted at Foyil in Rogers County at about 10:30 pm CST where a new cement block post office was destroyed and several homes were twisted off of their foundations. The loss of power poles in the Foyil area caused the city of Claremore to be without power all night.

Several homes, outbuildings, and barns along OK State Highway 28, south of Chelsea in Rogers County, were also damaged or destroyed. Near Big Cabin, in Craig County, the storm left a "mile of hog wire" jammed in the high utility lines and downed 24 utility poles 6 miles south of Vinita. A semi-truck driver was injured 1 mile east of Vinita when his truck was toppled by the tornadic winds on U.S. Interstate Highway I-44.

A violent squall line brought heavy rains and tornadoes to the Tulsa, OK area during the late afternoon of June 8, 1974. The heavy rains and tornadoes combined to produce one of the worst natural disasters in Tulsa's history. Two deaths were attributed to one of the tornadoes and one death to flash flooding.

One of the tornadoes touched down just west of Tulsa at about 5:50 pm CST and moved east-northeastward across the city. Some of the worst damage occurred near the intersections of 51st and Union, 41st and Peoria, and 21st and Garnett. A 17-year-old girl living near the 21st and Garnett area was fatally injured. The Red Cross also reported that a 71-year-old man in Tulsa was also killed.

Upon leaving Tulsa, the tornado took a more northeasterly track and produced more damage near Catoosa, Claremore, and Big Cabin before it dissipated. In addition to producing 2 fatalities, the tornado also injured 80 people.

The second tornado to strike the Tulsa area on June 8, 1974 also touched down at 5:50 pm CST near Sapulpa and moved into Tulsa near 91st Street and Elwood Avenue. At the Riverside Airport, the anemometer pegged 100 knots for several minutes. The tornado moved in an east-northeastward direction causing extensive damage to Oral Roberts University (ORU) and the residential additions of Walnut Creek and Southridge Estates which are adjacent to the ORU campus. Extensive damage also occurred at the Player Park housing addition north of 71st Street.

The tornado continued in the east-northeasterly direction, and caused damage at or near Broken Arrow, Inola, and Chouteau before dissipating. The damage path was 45 miles long and up to 100 yards wide. A total of 42 persons were injured by the tornado.

A tornado touched down about 4 miles north of Pensacola in Mayes County at 4:50 pm CST and moved northeastward along a nearly continuous path. At 5:20 pm CST, it leveled a mini-mart near Ketchum and the intersection of OK State Highways 82 and 85 in Craig County. Four people were injured by flying debris in the Ketchum area in Craig County as the tornado progressed to the northeast. Three of the injured were inside one car, and the fourth was hospitalized with severe lacerations.

The tornado then moved through the Cleora area to Bernice along the western shores of Grand Lake in Delaware County before dissipating in southern Ottawa County at 5:45 pm CST. Twenty residences were damaged in the Grand Lake resort area south of Cleora, and one mobile home park was destroyed at Bernice. One man was treated for injuries after he was pummeled by baseball size hail, but he was not hospitalized. For the entire path of the tornado, a total of 11 homes were destroyed, 6 other homes had major damage, and 40 homes received minor damage. In addition, a total of 28 mobile homes were destroyed while 25 more were damaged. Hail ranging from golf ball to baseball size was reported with the storm. The tornado was occasionally multi-vortex in nature as some people reported seeing 3 funnels while others saw only one funnel.

A small tornado touched down briefly near the Lake Hudson Marina, overturning mobile homes, destroying a boat dock, and damaging roofs on houses. Three people sustained minor injuries, and damages were estimated at $500,000.

Severe thunderstorms developed in northeast Oklahoma ahead of a cold front during the late afternoon of April 24th and moved across portions of eastern Oklahoma during the night. The thunderstorms spawned 8 tornadoes, and produced hail to baseball size and damaging straight-line winds.

This tornado touched down at 6:46 pm CST 4 miles west of Locust Grove in Mayes County, and moved east-northeastward for 4.5 miles before lifting at 6:56 pm CST 1.5 miles north of Locust Grove. The tornado destroyed 1 house and 5 mobile homes, and damaged 10 houses and 7 mobile homes. Several barns and outbuildings were also destroyed. One minor injury was caused by the tornado. This F2 tornado caused around $500,000 worth of damage and was 150 yards wide.

A dry line over western Oklahoma shifted to central Oklahoma during the afternoon. Warm, moist, and very unstable air was in place over eastern Oklahoma ahead of the boundary. Thunderstorms formed on the dry line during the evening and moved northeast across northeastern Oklahoma. Favorable wind shear resulted in supercell thunderstorm development with several damaging tornadoes and large hail occurring over Pawnee and Osage Counties. A line of severe thunderstorms formed on a cold front approaching the area from the northwest and those storms moved through late in the evening and during the early morning hours. Several tornadoes and damaging wind occurred from those storms.

A tornado touched down 7.5 miles east-northeast of Tiawah and moved to the northeast, damaging trees and blowing down power poles in extreme eastern Rogers County. This tornado continued into western Mayes County where it severely damaged the roofs of several homes, downed numerous trees, blew down power poles, and injured two people.

The tornado developed on the leading edge of a short convective line of thunderstorms that wasn't undercut by cold outflow. It moved northeast uprooting and snapping a number of large trees within this segment in Mayes County and then moved into the extreme northwestern corner of Cherokee County producing similar damage. The tornado then continued northeastward back into Mayes County.

As the tornado crossed back into Mayes County, it destroyed a double wide mobile home and damaged a single wide mobile home just north of the E590 Road. A woman was killed in the double wide mobile home and two people were injured in the other mobile home. Trees were uprooted and snapped and debris from the double wide mobile home was transported several hundred yards downstream. The tornado damaged another mobile home south of the E580 Road where it destroyed a greenhouse. Numerous trees were uprooted and snapped along the path until the tornado dissipated just south of the E570 Road.

August is one of the least active months for tornadoes in this part of the country so the intensity of this tornado was even more unusual. In fact, this is only the 4th strong tornado (EF-2 or EF-3) that has been confirmed in eastern Oklahoma since 1950.

Thunderstorms developed along and south of a stationary frontal boundary that extended across southeastern Kansas through southwestern Oklahoma during the evening hours of April 17th. This frontal boundary surged southward as a cold front overnight, increasing the thunderstorm activity over eastern Oklahoma as it moved into warm, moist, and unstable air. The thunderstorms evolved into a bow echo that moved rapidly east-northeast across the region producing damaging wind, some large hail, and locally heavy rainfall as thunderstorms moved repeatedly across the same areas. Tornadoes developed across northeastern Oklahoma in the storms that moved along the frontal boundary.

This tornado developed in the cyclonic comma head of the bow echo, well behind the initial gust front. It damaged numerous homes and businesses in Spavinaw and tore much of the roof off of the school. Several mobile homes were destroyed, numerous trees were snapped or uprooted, and numerous power poles were snapped. Based on this damage, maximum estimated wind in the tornado was 100 to 110 mph. Two people were injured.