During June 22–23, 2007, a localized but potent tornado outbreak affected the Canadian province of Manitoba, particularly the southern part of the province. Despite the small scale of this outbreak, it featured various significant (F2+) tornadoes, including the Elie, Manitoba F5 tornado on June 22, for which the outbreak is most well-known. In addition to the Elie tornado, the system produced three F3 tornadoes: the Oakville, Manitoba tornado on June 22, the Pipestone, Manitoba tornado on June 23, and the Minto–Baldur, Manitoba tornado on June 23.

The environmental setup that accompanied this outbreak was unseasonably intense, especially for the province of Manitoba, which has only seen one violent (F4/EF4+) tornado since the Elie tornado. No casualties (injuries or fatalities) were reported during this outbreak sequence. However, damage costs from the Elie tornado alone amounted to $39,000,000 (2007 CAD). The other significant tornadoes from this outbreak did cause structural damage, but the costs of this damage were not recorded.

Many scientific curiosities came with this tornado outbreak. Most notable was the F5-level damage that the Elie tornado caused, as the tornado was rated F5 through videographic evidence of a well-anchored home failing and being lofted into the air by the tornado, before being thrown around the funnel and disintegrated midair. At the time of this damage, the Elie tornado was roping out and was a mere wide. It has been suspected that conservation of angular momentum, as well as the vortex breakdown that the tornado was undergoing, may have caused it to strengthen dramatically.

Meteorological Synopsis Prior to the event, 1200 UTC 500-mb mesoscale analysis revealed the presence of a building upper ridge over the southern Prairies region of Canada, specifically in the southern Alberta and Saskatchewan regions, with a minor shortwave trough accompanying this ridge over Alberta. A thermal ridge was also noted in the southern Saskatchewan area, preventing storm formation and increasing heating in the upper atmosphere. Winds contained within a jet max at 800 hPa reached 10-15 m s⁻¹ (22-34 mph) as they rounded the western half of a high pressure ridge situated over the High Plains. This intense jet stream continually advected moisture from the Gulf of Mexico, allowing any developing storms to have access to large amounts of inflow. The directional and magnitudinal change of wind with height, known as wind shear, was also observed during this time, further contributing to an environment favorable for storm development.

At the surface, multiple disconnected lows were present, with one surface low over southern Saskatchewan featuring a warm front that extended to the east, into the Interlake region of the province of Manitoba. Due to this low, warm temperatures and high dew point values were advected into the region, increasing instability in the atmosphere. By 1800 UTC, this surface low had moved east and positioned itself directly over Dauphin Lake, with surrounding temperatures reaching 26-28°C (79-82°F), and dew points skyrocketing to 18-20°C (64-68°F). At this time, a significant elevated mixed layer (EML) remained over the area, preventing convection and storm activity but allowing for instability to continue to rise. By 2100 UTC, the area of low pressure had finally migrated to the southern basin of Lake Manitoba, and remained quasi-stationary for hours, with the Elie tornado initiating off of a dry line ahead of a cold front that extended from the low. It is noted that a cold pool and gravity waves may have affected the development of the Elie tornado, as well as other tornadoes in the surrounding area.

Confirmed tornadoes

June 22 event + List of confirmed tornadoes – Friday, June 22, 2007F#LocationDistrict / MunicipalityProvince / TerritoryStart Coord.Time (UTC)Path lengthMax width F5ElieCentral PlainsMB23:25–00:00See article on this tornado F3S of Oakville to FannystelleCentral PlainsMB23:55–?See section on this tornado EF1S of UphamMcHenryND00:30–00:45This tornado struck a farmstead, unroofing a chicken coop and shifting a barn off its foundation. Several trees were damaged.

June 23 event + List of confirmed tornadoes – Saturday, June 23, 2007F#LocationDistrict / MunicipalityProvince / TerritoryStart Coord.Time (UTC)Path lengthMax width F1Oak Lake Reserve to E of PipestonePipestoneMB00:40–?This tornado touched down at approximately 00:40 UTC June 24 (7:40 p.m. CDT June 23), producing F1 damage along a path from Oak Lake Reserve to the Pipestone area; the tornado had a maximum documented width of . Videos of this tornado and its associated storm exist online. F3S of Pipestone to S of MintoPipestoneMB01:15–?This large wedge tornado formed near Pipestone, Manitoba at 01:15 UTC June 24 (8:15 p.m. CDT June 23), reportedly destroying two homes and damaging several tree lines along a path. This tornado was captured on video, with storm chasers documenting the highly visible multi-vortex structure of the tornado. F3S of Minto to S of BaldurArgyleMB02:10–?This tornado impacted areas south of Minto and Baldur in Manitoba. Though no significant property damage was found, extreme treefall damage, as well as damage to vegetation in general, was observed. Lines of trees were sheared and debarked throughout the tornado's path. Because the supercell that produced the Baldur tornado had become increasingly rainwrapped, no official photos of the tornado's funnel exist. F1Seven Sisters FallsWhitemouthMB04:00This tornado touched down north of Seven Sisters Falls, Manitoba at 04:00 UTC June 24 (11:00 p.m. CDT June 23). No information is known about this tornado, beyond the fact that it caused F1-level damage and did not result in any deaths or injuries. The path length, width, and duration of this tornado are unknown.

Elie, Manitoba

This narrow and erratic tornado tracked primarily southeast, as opposed to the usual northeasterly motion of tornadoes, and it made multiple loops and sharp turns as it approached Elie, Manitoba.Assessing tornado damage: EF-scale vs. F-scale While several houses were leveled, no injuries or deaths were recorded. A well-built, anchored home in Elie, equipped with 2x6 sill plates, J-bolts, and larger-than-typical washers, was completely removed from its foundation, with the entire house being lofted by the tornado and disintegrated midair. The Elie tornado was initially rated F4 due to concerns with its slow and erratic motion allowing the tornado to "relentlessly pound" the homes that it struck. However, based on a surveyor-led reanalysis, the tornado was upgraded to an F5 rating. A video that had resurfaced online, showing the Elie tornado causing a swift failure to a bolted home and lofting it into the air, prompted the upgrade, as surveyors were able to confirm that the failure of the home was instantaneous.

The Elie tornado is the only tornado in Canadian history to have officially received an F5 rating. It is also the most recent F5 tornado worldwide, as several countries gradually adopted the Enhanced Fujita scale after its introduction in the United States in 2007; Canada adopted the enhanced scale in 2013.

The tornado initially touched down north of the Trans-Canada Highway at 6:25 p.m. CDT (23:25 UTC) and slowly tracked southeast, displacing and overturning a semi-trailer and a tractor trailer along the Trans-Canada Highway. Making multiple erratic turns, the tornado crossed the highway, made another turn south, and directly struck the town's flour mill, causing over $1 million in damage. Initially, the tornado did not cause significant damage to the flour mill, but it made an extremely slow loop and struck the flour mill again, this time at F2 intensity. By the time the tornado exited the flour mill, it had grown to a width of . It then headed south, paralleling Janzen Road at F0 intensity. It also continued to grow in width, reaching its peak width of about 140 m (153 yd).

After reaching the intersection of Janzen Road and Road 61 North, the tornado turned east, and began to move directly towards the southwest edge of Elie. It quickly intensified to F4 strength as it made a loop over Elie Street, severely damaging multiple homes in the process. One of these homes, which was described as well-built and bolted to its foundation, was completely removed from its foundation and lofted into the air by the tornado, where it then collapsed into pieces as it was thrown around the tornado's funnel. The tornado also sheared some sill plates from this home and snapped off the bolts that supported these sill plates. Trees were debarked as well, and various vehicles were thrown. Two other houses sustained F4 level damage, with both of them being almost completely swept from their foundations, and another house to the west also sustained F2-F3 level damage. The tornado lingered over Elie Street for approximately four minutes, before exiting Elie and dissipating shortly afterwards.

The tornado traveled about in total and was wide at its widest during its 35-minute lifespan. No injuries or fatalities were recorded. At least $39 million (2007 CAD) in damage costs was incurred.

Oakville, Manitoba

At approximately 6:55 p.m. CDT (23:55 UTC), as the Elie tornado was ongoing, a separate storm system produced a slender but intense tornado around 12 miles (19 km) to the west of Elie, south of the farming community of Oakville, Manitoba. This tornado took a winding path towards the southeast, exhibiting erratic, looping movements — similar to the Elie tornado. Throughout its short path, no injuries or deaths were reported, but the tornado caused sizable damage to vegetation, namely to trees and crops. Severe instances of structural damage were also noted, such as the collapse of a frame home near Oakville, an old farm house being "obliterated to its foundation", the destruction of multiple outbuildings (including a Quonset), and the destruction of grain bins and farm machinery at multiple farm sites.

Because the view to the Elie and Oakville tornadoes was unobstructed, multiple witnesses — specifically those along the Trans-Canada Highway — were able to see both tornadoes on the ground simultaneously, making for a rare event. Many photographs exist that show both the Elie and Oakville tornadoes from the same vantage point.

The Oakville tornado made contact with the ground at 6:55 p.m. CDT (2355 UTC), approximately 15.4 km (9.6 mi) south of the community of Oakville. From then, it proceeded to impact a series of farmsteads in rural areas south of the Trans-Canada Highway, causing considerable damage in the process. Several outbuildings were clipped or otherwise destroyed along the tornado's 10 km (6.2 mi) path, grain storage bins were reportedly crushed and thrown, and multiple farmsteads and frame homes suffered complete collapse. Per the Northern Tornadoes Project (2024), EC-PNR records indicated that the F3 rating of the Oakville tornado was based on the complete destruction and sweeping of an old farmhouse, with shearing and debarking of hardwood trees noted at the site. Sources also indicate that a quonset hut — a very common sight in rural southern Manitoba, mainly used for agricultural purposes — was destroyed, and heavy farm machinery was tossed and damaged. Witness photographs of the damage from the tornado also confirm that multiple wooden power lines were downed, a frame house collapsed in on itself with few interior walls remaining upright, and rows of shelterbelt trees were shredded, debarked, and occasionally sheared to ground level. Aerial imagery from after the tornado also shows the possible disappearance of vegetation around the affected areas.