May 6–10 (United States) . Another large and deadly tornado outbreak occurred across the
Great Plains,
Mississippi Valley, and the
Ohio Valley from May 6–10. On May 6, a tornado-driven
high risk was issued by the
Storm Prediction Center across central, north central, and, later, northeastern
Oklahoma and south central
Kansas, highlighting a 30 percent significant tornado probability over the High Risk area. However, throughout the day, only weak tornadoes occurred across the Plains. A separate system also spawned severe thunderstorms in
Tennessee, including one that produced an EF1 tornado that moved through
Smithville. Later that night, a powerful
supercell spawned a violent EF4 tornado southeast of
Hominy, Oklahoma. The tornado moved northeastward and struck the community of
Barnsdall, prompting the issuance of a
tornado emergency. Two people were killed within the town, and many homes and other structures were heavily damaged or destroyed, including some that were leveled. The tornado continued northeast and moved into
Bartlesville, Oklahoma, causing additional severe damage before dissipating northeast of the town. Through the overnight hours into May 7, a squall line produced widespread damaging winds and isolated weak tornadoes across all of
Missouri. On May 7, a tornado-driven Enhanced risk was issued across the
Ohio Valley by the
Storm Prediction Center. That afternoon, a strong, high-end EF2 tornado caused severe damage in
Portage, Michigan. Later, a large EF2 tornado along with a satellite EF1 tornado prompted the issuance of a tornado emergency for
Union City and
Sherwood, the first tornado emergency ever issued in the state of Michigan. Other tornadoes were reported across
Michigan along with
Ohio,
West Virginia,
Indiana,
Arkansas, and
Pennsylvania through the overnight hours into May 8. . Later on May 8, more severe weather and tornadoes impacted much of the
Middle Mississippi and
Tennessee Valleys with many areas experiencing multiple rounds of storms. PDS tornado warnings were issued for EF1 tornadoes near
Equality, Illinois and
Aurora, Missouri. A tornado emergency was issued for a large, low-end EF3 tornado east of
Columbia, Tennessee; a fatality and four injuries have been confirmed with this tornado. Later in the evening, an intense, low-end EF3 tornado crossed
Wheeler Lake southeast of
Rogersville, Alabama and came ashore in the Bridgadoon subdivision. It damaged several homes, including one large home that sustained significant damage. That night, another PDS tornado warning was issued when the same storm that produced the Brigadoon tornado spawned a strong EF2 tornado in
Huntsville, Alabama; the same storm later produced another destructive low-end EF3 tornado that prompted the issuance of another tornado emergency for
Henagar,
Hammondville, and
Mentone. Strong straight-line winds blew a tree down on a car east of
Lone Mountain, Tennessee, killing the driver. Severe storms also forced a
Major League Baseball game at
Busch Stadium to be postponed until August 5. More isolated tornadic activity occurred on May 9, but widespread reports of wind damage and large to very large hail were recorded throughout the
Deep South. Through the overnight hours into May 10, a severe MCS moved through the southern Gulf Coast, producing widespread wind damage. The MCS would produce an EF2 tornado northeast of
Pensacola, Florida before spawning three large tornadoes that simultaneously impacted
Leon County, Florida. The two northern-most tornadoes, which were both rated low-end EF2, moved directly through
Tallahassee, inflicting major damage to the downtown area as well as on the campuses of
Florida State University and
Florida A&M University. The second of these tornadoes also killed two people. To the south of these tornadoes, a swath of significant straight-line winds of around caused damage in the southern part of Tallahassee and points east. The third tornado, which was rated high-end EF1, passed south of Tallahassee, producing widespread tree damage. Tornadic activity then ceased, but severe weather continued to impact the Southeastern United States until the system finally pushed offshore early on May 11. In all, 179 tornadoes, five tornadic fatalities, and three non-tornadic fatalities were confirmed from this outbreak.
May 10 (Australia) A tornado struck the town of
Bunbury, damaging around 100 homes, including seven that were declared uninhabitable, and injuring two people. Its wind speeds were estimated at over 150 km/h.
May 13–14 (United States) Severe storms produced damaging winds, large hail, and tornadoes across mainly the
Gulf Coast. The strongest tornadoes were spawned in association with an MCS that moved through the
Acadiana region of
Louisiana. An EF2 tornado impacted the eastern part of
Sulphur, destroying warehouses and damaging homes, other structures, trees, and power lines. As that tornado dissipated, an EF1 tornado developed in
Westlake and moved through Downtown
Lake Charles, damaging homes, businesses, trees and power lines. Later, another EF2 tornado crossed over
I-10 and moved through
Henderson, damaging homes and businesses, rolling mobile homes and RV, destroying outbuildings, and damaging trees and power lines. The tornado killed one person and injured another person. Scattered tornadic weather occurred on May 14 as well, although all the tornadoes were weak. In all, 26 tornadoes were confirmed. A second rain-wrapped IF2 tornado touched down at
Villa Poma 1 hour and 10 minutes later, tracking 2.6 km and reaching 110 meters in width. Seven
tank cars from a
freight train were blown over and a steel tower collapsed. Sporadic patterns in the grass was also observed together with a downed steel fence. Additional damage was observed to greenhouses and roofs. and the next two touching down on the south side of
Cypress. The tornadoes destroyed outbuildings, rolled campers, damaged homes, and downed trees. The second tornado near Cypress also caused damage on the
Lone Star College–CyFair campus. The fourth tornado struck the town of
Romeville, damaging the roofs of several frame houses and manufactured homes in addition to snapping trees and power poles. Although these tornadoes caused no casualties, the event overall killed eight people, and caused $1.2 billion in damage. On May 21, the Storm Prediction Center issued a Moderate risk for severe weather in the states of
Iowa,
Missouri,
Minnesota,
Wisconsin, and
Illinois, including a 15% hatched risk for significant, long-track tornadoes. As a result, a
Particularly Dangerous Situation tornado watch was issued. A few tornadoes occurred near
Macedonia and
Red Oak. One long-tracked and violent tornado touched down near
Villisca, Iowa. Continuing northeast, it toppled and crumpled several wind turbines. The tornado then approached
Greenfield, where it intensified to EF4 intensity. Numerous homes were damaged or destroyed with some of them being reduced to their foundations or swept clean. Vehicles sustained severe damage as well and multiple trees were severely debarked. Four people were killed in Greenfield. . Another fatality occurred near the town of
Corning, about 30 miles southwest of Greenfield when the tornado blew a vehicle off the road. At least 35 people sustained injuries to some degree. A
Doppler on Wheels measured winds in a small area between above the surface near Greenfield making this one of the highest windspeeds ever recorded in a tornado, being just a bit weaker than the tornado that hit
Bridge Creek, Oklahoma on May 3, 1999 . Overall, 82 tornadoes were confirmed as a result of this outbreak, resulting in 5 deaths and at least 69 injuries.
May 25–27 (United States) Another major tornado outbreak occurred on May 25 and 26, as tornadic activity continued over the next several days. During the overnight hours of May 25 into May 26, several destructive tornadoes touched down in northern Texas from an isolated supercell. One destructive and intense low-end EF3 tornado caused severe damage near
Valley View and
Pilot Point, Texas, killing at least seven people and injuring 100 others. Further to the north, supercell clusters formed and moved eastward across southeastern Kansas and northeastern Oklahoma as well as northern Arkansas and southern
Missouri, causing widespread destruction from both tornadoes and damaging straight-line winds of up to . Another destructive EF3 tornado struck
Claremore and near
Pryor, Oklahoma, killing two people. An EF3 tornado near
Decatur, Arkansas became the largest tornado ever recorded in the state while secondary circulation spawned a damaging anticyclonic EF2 tornado. A strong EF2 tornado also struck
Rogers, causing major damage. A total of four people were killed by an EF3 tornado neat
Olvey and
Pyatt, another tornadic fatality occurred when a low-end EF3 tornado struck
Briarcliff (which was also struck by an EF2 satellite tornado), and two indirect fatalities occurred with a low-end EF3 tornado that moved through
Sikeston, Missouri. In the evening hours of May 26, a large and destructive high-end EF3 tornado prompted four tornado emergencies as it impacted
Crider,
Charleston, and
Barnsley, causing significant damage and a fatality. Overall, 97 tornadoes were confirmed as a result of this outbreak, resulting in 15 tornadic deaths and dozens more injuries, along with 10 non-tornadic deaths. That evening, numerous tornadoes touched down in Texas, including an EF2 tornado that prompted a
tornado emergency for areas to the south of
Midland, damaging power poles and RVs. This was the first issuance of a tornado emergency by the
National Weather Service office in Midland. An EF3 tornado damaged heavy oil equipment and caused ground scouring near
Midkiff. Further east, multiple EF1 tornadoes touched down near the Texas-Louisiana border, including a tornado near
Stonewall, Louisiana that tossed a metal building. This outbreak produced 13 tornadoes but no casualties. ==June==