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Edmonton tornado
F4 tornado
A photograph of the tornado by Steve Simon
Meteorological history
FormedJuly 31, 1987, 2:55 p.m. (MDT)
DissipatedJuly 31, 1987, 4:00 p.m. (MDT)
Duration1 hour, 5 minutes
F4 tornado
on the Fujita scale
Highest winds418 km/h (260 mph)
Lowest pressure919.3 hPa (mbar); 27.15 inHg
Maximum rainfall300 millimetres (12 in)
Overall effects
Fatalities27
Injuries~300
Damage$332.27 million
($796 million in 2025 dollars[1])
Areas affectedCity of Edmonton, Strathcona County, Central Alberta
Part of the tornadoes of 1987

The Edmonton tornado, also known as Black Friday to Edmontonians, was a powerful and devastating tornado that ripped through the eastern parts of Edmonton, Alberta, Canada and parts of neighbouring Strathcona County on the afternoon of Friday, July 31, 1987. It was one of seven other tornadoes in central Alberta the same day.[2]

The tornado peaked at F4 on the Fujita scale and remained on the ground for an hour, cutting a swath of destruction 30.8 km (19.1 mi) in length and up to 1.3 km (0.81 mi) wide in some places.[2][3] It killed 27 people, and injured more than 300, destroyed more than 300 homes, and caused more than C$332.27 million (equivalent to $796 million in 2025) in property damage at four major disaster sites. The loss of life, injuries and destruction of property made it the worst natural disaster in Alberta's recent history and the second deadliest tornado in Canada's history, after the Regina Cyclone.

Weather forecasts issued during the morning and early afternoon of July 31, 1987, for Edmonton revealed a recognition by Environment Canada of a high potential for unusually severe thunderstorms that afternoon. Environment Canada responded swiftly upon receipt of the first report of a tornado touchdown from a resident of Leduc County which is immediately adjacent to Edmonton's southern boundary.

Meteorological synopsis

[edit]

In the week preceding July 31, a low pressure system sitting over southwestern British Columbia fed warm, humid air into central Alberta. Daytime heating along with near-record dewpoints over Alberta triggered a series of strong thunderstorms that persisted throughout the week. On July 31, a cold front developed over western Alberta, colliding with the warm moist air that persisted over the region. Forecasters recognized the elevated risk for severe weather early in the day. Weatheradio broadcasts and interviews with the media stressed "vicious thunderstorms" and "extremely strong and violent thunderstorms".[4]

Tornado summary

[edit]

The storm passed east of Leduc, where the first tornado was reported by a weather spotter at 2:59 pm. The tornado was on the ground briefly before dissipating. Shortly after 3:00 pm, the tornado again touched down in the Beaumont area, tossing granaries and farm equipment as it grew in size and strength.[5]

At 3:04 pm, a tornado warning was issued for the city. The tornado moved into the southeast portion of the city as a multiple-vortex tornado, and tracked north along the eastern portions of Mill Woods, causing F2 to F3 damage. The tornado continued northward crossing the Sherwood Park Freeway and eventually hitting the Refinery Row area at F4 intensity. The tornado tossed several large oil tanks, levelled several industrial buildings, and several trailers were picked up and scattered at Laidlaw and Byers Transport.[6] Grass scouring and windrowing of debris occurred, and damage in that area may have been borderline F5, but was never officially ranked as such.[7]

Path of the tornado

The tornado weakened slightly as it passed over an open area between Baseline Road and the North Saskatchewan River. Still, it maintained F2 to F3 intensity as it tore through eastern parts of Clareview toward 4:00 pm, causing heavy damage to several homes in Kernohan, Bannerman and Fraser neighbourhoods before dissipating.[6]

Confirmed tornadoes by Fujita rating
FU F0 F1 F2 F3 F4 F5 Total
0 4 1 2 0 1 0 8

Other tornadoes

[edit]

Not including the F4 tornado, seven other tornadoes were reported. An F2 tornado touched down near Beaumont, south of Edmonton. It travelled through countryside east of Edmonton. Twenty-two minutes after the first tornado touchdown an F1 tornado touched down in Southeast Edmonton in an area that was mostly farmland. It traveled 7.26 km (4.51 mi). There were also three F0 tornadoes in the Edmonton Area (to the north, northwest, and southwest) but too far away to be seen from the city.[2][8]

Farther from the Edmonton area, an F2 tornado touched down in farmland between Millet and Vegreville and remained on the ground for 52 km (32 mi), causing $40,000 in damages.[4][2]

Post-disaster response

[edit]

The Emergency Public Warning System, later replaced by Alberta Emergency Alert, was developed as a result of the 1987 tornado disaster.[9] The warning system breaks into private and public broadcasts on radio, television and cable systems. It alerts the public for all disaster hazards that threaten to strike with little or no warning. The warning system is also used for issuing Amber alerts.[10]

The tornado had also resulted in the first implementation of the Doppler weather radar concept in Canada in the early 1990s. Edmonton's Carvel radar was one of only three Dopplers to exist in Canada at the time. It later became part of the Canadian weather radar network, which was Dopplerized starting in 1998.[11]

The "Pillar of Love" statue, located in Hermitage Park, was constructed as a memorial for the 1987 tornado. This bronze sculpture was created by Barbara Eichner-Shaw.[12]

In media

[edit]

The song "Tornado '87" by The Rural Alberta Advantage, on their 2011 album Departing, was inspired by singer Nils Edenloff's experience as a child surviving the tornado.[13]

See also

[edit]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Edmonton tornado

View on Grokipedia
from Grokipedia
The Edmonton tornado was an F4 that struck the city of , , , on July 31, 1987, becoming the deadliest and most destructive in the province's recorded history. Originating as a small in south of the city around 2:55 p.m., it rapidly intensified while moving northeast, reaching widths of up to 1.3 km and remaining on the ground for over an hour along a path of approximately 31 km through residential, industrial, and mobile home areas including , Evergreen Mobile Home Park, and near . The storm, accompanied by tennis ball-sized hail and winds estimated at up to 420 km/h, killed 27 people—most in the Evergreen trailer park collapse—and injured about 600 others, while rendering 1,700 homeless and causing damages of $330 million CAD in 1987 dollars (equivalent to approximately $770 million in 2023 dollars). Known as "Black Friday" due to the dark skies and chaos it unleashed, the tornado highlighted vulnerabilities in Canada's systems at the time, as initial reports underestimated its severity despite Environment Canada's issuance of a . It destroyed over 300 homes, damaged thousands more structures, and affected industrial sites, leading to widespread power outages and regional flooding from 300 mm of over three days that swelled several rivers, including the Smoky and Wapiti, by 7-8 meters. The event prompted significant reforms, including the installation of in and the establishment of the Alberta Emergency Management Agency (AEMA) in to enhance storm tracking and public alerts. Meteorologically, the tornado formed amid a series of severe thunderstorms fueled by unstable atmospheric conditions, following 14 prior tornadoes in over the previous five days; it peaked at F4 intensity on the (equivalent to EF4 on the modern ), with devastation including well-constructed homes swept clean from foundations and vehicles hurled significant distances. Post-event surveys by Environment documented its exceptional duration—10 times longer than the average Canadian tornado—and path length, underscoring the need for improved forecasting amid the region's underestimation of tornado risks in the Prairies. The disaster's legacy endures in Edmonton's , with stricter building codes for mobile homes and annual commemorations honoring the victims and who managed the overwhelming relief efforts; as of 2025, it remains the deadliest tornado in history and was marked by a 38th commemoration.

Meteorological background

Synoptic conditions

On –31, 1987, a strong shortwave trough at 500 hPa progressed eastward from the northern into the Prairie provinces, positioning in the trough's exit region with southerly at 250 hPa and 500 hPa. This upper-level feature, including a trough over central with winds around 29 m/s from the south-southeast, enhanced large-scale lift and divergence conducive to severe development across . At the surface, warm and humid air advected northward from the U.S. Plains, characterized by dew points near 19°C, clashed with cooler air masses originating from the north and west, fostering a deepening low-pressure system centered west of and associated frontal boundaries over . This setup created a moist with precipitable water values around 34 mm and no pronounced dryline, though low-level convergence was amplified by upslope flow toward the Rockies and veering surface winds from southeasterly to southwesterly. Atmospheric instability was significant, with convective available potential energy (CAPE) values exceeding 2,000 J/kg—reaching up to 2,690 J/kg in the area—supported by surface temperatures around 25°C that, along with upper-level warming, eroded capping inversions at 850 hPa and 730 hPa. Strong vertical , particularly a 0–6 km bulk shear of approximately 5.1 m/s per km (totaling around 30 m/s or 58 knots) with easterly low-level flow veering to southerly mid-level flow, provided an environment highly favorable for thunderstorms and . These conditions contributed to a broader outbreak, with the same producing an estimated seven other tornadoes in that day, amid multiple storms.

Local weather and warnings

On July 31, 1987, Edmonton experienced warm and humid conditions conducive to severe thunderstorm development, with daytime temperatures reaching a maximum of approximately 24°C (75°F) by early afternoon at Edmonton International Airport, accompanied by a dew point of 18.6°C (65.5°F), indicating substantial low-level moisture and atmospheric instability. These conditions were part of a broader pattern of hot and humid weather across Alberta during the preceding week, where surface dew points had approached near-record levels around 20°C (68°F), far above the typical summer average of about 10°C (50°F) in the region. By late afternoon, observations from the Atmospheric Environment Service detected the rapid intensification of thunderstorms originating near Leduc, south of , evolving into supercellular structures as they moved northward toward the city at around 70 km/h (43 mph). Initial reports from volunteer weather spotters, including the Weather Watcher Network, noted sightings near Leduc at 14:55 MDT, prompting Environment Canada to issue a watch for the area at 13:40 MDT and upgrade it to a warning—covering potential and —at 14:45 MDT. These early alerts were disseminated via Weatheradio and local media, highlighting the risk of damaging winds and large from the approaching storms. The first tornado warning for the Edmonton area was issued by Environment Canada's Edmonton office at 15:04 MDT, approximately 20-25 minutes before the primary tornado's initial , based on a combination of -detected hook echoes and confirmatory visual reports from spotters of a rope-like . An update followed at 15:30 MDT, extending the warning until 19:00 MDT and emphasizing the potential for multiple tornadoes. However, the warning system's effectiveness was constrained by 1987 technology, which relied on conventional single-site lacking Doppler capabilities for real-time detection, supplemented primarily by volunteer spotter networks rather than advanced . This setup, centered at the Carvel station west of , provided reflectivity data but struggled with precise storm tracking in the region's variable terrain.

The tornado

Formation and path

The 1987 Edmonton tornado developed from a thunderstorm embedded within a larger line of severe storms that formed along the foothills of earlier in the day. Under conditions of high instability, warm temperatures, and elevated moisture with dew points around 20°C, the intensified near Leduc by approximately 2:45 p.m. MDT on , producing an initial rope-like first reported at 2:48 p.m. MDT. This funnel rapidly evolved as the storm rotated, transitioning into a more structured vortex with observations of multiple funnel types, including cone, columnar, smoke-like, and multiple vortices. The tornado achieved its first touchdown at approximately 2:55 p.m. MDT just south of near Beaumont in , initially manifesting as a narrow, translucent feature before intensifying. It then tracked north-northeast at an estimated speed of 20–40 km/h, carving a continuous path of approximately 30.8 km through the eastern suburbs and industrial areas of . Key waypoints along the route included the southeastern residential neighborhood of , where it entered the city limits; the Strathcona Industrial Park, known as Refinery Row; the Clareview area; and the Evergreen Mobile Home Park, where it exhibited a wedge-like appearance with multiple sub-vortices. The remained on the ground for approximately 1 hour, lifting around 4:00 p.m. MDT approximately 5 km northeast of the Evergreen Mobile Home Park. Throughout its progression, the vortex displayed dynamic structural changes, starting as a slender rope and broadening into a multi-vortex that incorporated debris, contributing to its visual intensity as observed by eyewitnesses.

Intensity and characteristics

The Edmonton tornado of July 31, 1987, was officially rated F4 on the , with peak wind speeds estimated between 333 and 418 km/h (207 and 260 mph). The rating was based on post-event damage surveys conducted by Environment Canada and local authorities, which documented devastation consistent with winds capable of debarking trees, leveling well-constructed homes, and deroofing industrial structures. At its maximum extent, the tornado reached a width of up to 1,300 m (1,400 yd), making it one of the widest tornadoes recorded in Canadian history and significantly broader than most events in the region. This expansive footprint was evident in aerial surveys and ground damage paths, where the swath of destruction spanned over a kilometer in urban and suburban areas, far exceeding the typical narrow tracks of tornadoes. Structurally, the tornado exhibited a complex multi-vortex configuration, with multiple smaller vortices rotating within the parent circulation, alongside satellite tornadoes observed intermittently during its lifecycle; eyewitness accounts and photographic evidence captured five distinct funnel types, including rope, cone, columnar, smoke-like, and multi-vortex forms. A prominent debris cloud enveloped the vortex, obscuring the funnel and contributing to the storm's ominous appearance while lofting heavy materials like vehicles and building components high into the atmosphere, as detected by radar echoes. This event stood out from typical tornadoes in , which are often shorter-lived, narrower, and confined to rural grasslands; the Edmonton's combination of exceptional size, prolonged intensity, and direct traversal of a major urban center marked it as an anomaly, highlighting the rare convergence of dynamics in a northern .

Impacts

Casualties

The Edmonton tornado of July 31, 1987, resulted in 27 confirmed fatalities, with the death toll initially reported at 26 before an additional hospital death was recorded. Of these, 15 deaths occurred at the Evergreen Mobile Home Park, where structural collapse of mobile homes caused massive trauma. Another 7 fatalities took place in the Industrial Area, primarily involving individuals in vehicles and buildings impacted by flying debris and collapse. The remaining 5 deaths happened in homes and other structures across the affected path. Over 300 people sustained injuries, with estimates ranging up to 600 in broader assessments; 253 required hospital admission, including 61 needing extensive treatment, while 192 were treated and released. Common injuries stemmed from flying debris and structural failures, encompassing lacerations, fractures, and head trauma. At least 53 individuals were hospitalized for serious conditions, with treatment distributed across six hospitals, including the (56 casualties treated, 22 admitted) and Royal Alexandra Hospital (107 casualties treated, 21 admitted). The casualties disproportionately impacted low-income residents in trailer parks like , as well as commuters on major roadways such as and industrial workers in the area. This demographic vulnerability was exacerbated by the tornado's path through high-risk, densely occupied zones during peak evening hours. Rescue efforts were mounted immediately by fire departments, police, and RCMP, who extracted 15-20 survivors from collapsed buildings, rubble, and damaged vehicles, though no formal on-site medical was established initially. The Edmonton Ambulance Authority transported 85 injured individuals, while 7 critically injured victims were evacuated by helicopter with support from the Department of National Defence. Volunteers and organizations like the Red Cross assisted in search operations and victim support at temporary centers.

Structural and economic damage

The Edmonton tornado caused extensive structural damage, particularly to residential areas and industrial facilities. Over 300 homes and mobile homes were completely destroyed, with the majority occurring in the Evergreen Mobile Home Park where 170 units were leveled. More than 2,000 additional residences and buildings sustained damage ranging from severe to minor, including roofs torn off and walls collapsed in neighborhoods like . In industrial zones, notable destruction included the Nault Lumber plywood mill, where a 300-ton was lifted 25 meters into the air before collapsing and destroying 10 girders, each weighing 30 tons; other affected sites encompassed businesses such as Packers and Shaw Pipe. Damage indicators, such as well-constructed homes being swept clean off their foundations with debris scattered far from the sites, contributed to the tornado's classification as F4 on the . Infrastructure suffered widespread disruption, exacerbating the immediate chaos. Power outages affected approximately 50,000 residents due to the toppling of 49 high-voltage (240-kV) and 17 medium-voltage (138-kV) transmission towers, along with 134 wooden poles and a substation, resulting in $8 million in damages. Heavy rainfall totaling around 100 mm over two days led to flooded basements in 476 homes, with water depths exceeding 1.5 meters in low-lying areas like , and caused the collapse of 330 meters of storm outfall pipe in Clareview at a cost of $2 million. , including vehicles, building materials, and industrial equipment, was hurled up to 10 km from the path, blocking roads, derailing a CN Rail train carrying tank cars including those with , and creating hazards such as hazardous fibreglass insulation on nearby farms. The economic toll was immense, with initial damage estimates reaching C$330 million in 1987 dollars, equivalent to approximately C$762 million in 2023 when adjusted for inflation using the Consumer Price Index. Insurance claims totaled C$250 million, covering over 63,000 submissions primarily for property and vehicle losses, including the destruction of hundreds of vehicles from debris, hail, and winds along the path. Federal and provincial aid amounted to C$60.3 million, with C$44.9 million from national contributions and the remainder through Alberta's Disaster Assistance Program, supporting rebuilding for individuals, businesses, and farmers.

Emergency response

Immediate actions

The Edmonton Emergency Response Plan was invoked shortly after the tornado struck southeast at approximately 3:15 PM MDT on July 31, 1987, with the City of 's Emergency Operations Centre (EOC) activated by 3:40 PM and fully operational soon thereafter. The provincial Government Emergency Operations Centre followed at around 4:00 PM, while 's EOC was established approximately 35 minutes after the tornado struck southeast . declared a state of local emergency at 4:50 PM, followed by the City of at 6:12 PM, prompting the mobilization of personnel, who retained day-shift officers and called in off-duty staff by about 4:00 PM, alongside fire departments and (RCMP). Search and rescue operations commenced around 4:00 PM, involving over 1,000 personnel from local police and fire services, provincial RCMP units, and federal support teams, including 102 police officers conducting initial sweeps and continuing until at least 2. More than 100 volunteer firefighters assisted in the efforts, supplemented by teams placed on standby by 7:43 PM and RCMP command posts established for body recovery in the area using dogs and helicopters, with Department of National Defence (DND) helicopters providing starting at approximately 7:40 PM on , and operations extending into early in debris-heavy zones. These measures addressed the severe impacts, including 27 fatalities and 253 admissions in the first 24 hours. Evacuations began immediately in affected areas, displacing approximately 1,700 residents from Evergreen Mobile Home Park between 6:12 PM and 7:00 PM using Edmonton Transit buses, alongside 250 employees from the Canada Packers facility by 5:36 PM. The Canadian Red Cross established points and temporary shelters at local schools and arenas, such as Bonnie Doon High School (ready by 9:54 PM for 70 evacuees) and M.E. LaZerte High School (Victim Assistance Centre opened August 3), coordinating housing for 89 displaced families in the initial days. Communication challenges hindered coordination due to widespread power failures that disrupted telephone systems and overloaded lines by 4:30 PM, with the Weather Centre briefly offline until auxiliary power restored it within 10 minutes. Radio traffic became overwhelmed with 77 reported incidents, delaying alerts, while public inquiry hotlines were set up in at 6:22 PM and at 7:33 PM; by 10:00 PM, 20 dedicated emergency lines were installed at to manage inquiries.

Recovery efforts

Following the immediate emergency response, recovery efforts for the 1987 Edmonton tornado focused on coordinated financial assistance, reconstruction of affected areas, and support programs to aid residents and businesses in rebuilding their lives. The federal government provided approximately C$20 million through the Disaster Financial Assistance Arrangements (DFAA), with the Province of contributing matching funds and administering additional programs, including the Alberta Disaster Assistance Program (ADAP), which disbursed C$36.2 million to over 1,000 applicants for uninsurable losses, and the Industrial Recovery Assistance Program (IRAP), which allocated C$21.7 million in grants and interest-free loans to 185 businesses in the devastated Sherwood Industrial Park. payouts supplemented these efforts, enabling the reconstruction of most destroyed residential structures, including over 170 mobile homes at Evergreen Mobile Home Park, where Mennonite Disaster Service volunteers completed rebuilding work by November 27, 1987, contributing 1,500 person-days of labor. Reconstruction projects emphasized rapid infrastructure restoration to support economic recovery, with utilities prioritizing power reconnection across the affected zones. Edmonton Power and Utilities restored electricity to most residential and industrial areas by August 2, 1987, just two days after the tornado, while full repairs to damaged lines and substations, costing C$8 million, were completed within six weeks. In the industrial sector, where damages exceeded C$250 million, IRAP-funded initiatives helped 182 of the 185 supported businesses resume operations by May 1990, resulting in a 10% increase in from 3,920 to 4,276 jobs; access to the Sherwood Industrial Park was partially granted by August 3, with full operations returning by August 8. Victim Assistance Centres, operational for 11 days, processed claims and provided temporary housing for 62 families, facilitating the transition to long-term rebuilding. Community support initiatives addressed both material and emotional needs, with the Canadian Red Cross playing a central role by managing a Tornado Relief Fund that received C$440,000 from public donations, including a major fundraising effort by the Edmonton Sun, and assisting 11,000 inquiries while housing 89 families in emergency accommodations. The Edmonton Food Bank distributed 12,244 kg of food in 274 hampers to victims from August 3 to 12. Psychological counseling was provided through Alberta Mental Health Services and the Edmonton Board of Health, reaching 113 families (190 individuals) immediately and conducting follow-up sessions with 1,180 families by late 1987 to address trauma among survivors and responders. These efforts, guided by initial damage assessments, ensured a structured path to recovery, with assistance registrations continuing until March 1988.

Legacy

Changes in disaster preparedness

The 1987 Edmonton tornado catalyzed major advancements in Canada's meteorological forecasting capabilities, particularly through the expansion of infrastructure. The event underscored the limitations of existing conventional radar systems in detecting and tracking severe storms, leading to federal approval and funding for a nationwide network of . The first such installation in occurred near at the Carvel site in 1991, marking a pivotal step in enhancing real-time storm monitoring across the Prairies. These upgrades enabled more precise identification of rotational signatures associated with tornadoes, resulting in improved warning lead times. In response to the tornado's disproportionate impact on vulnerable structures, Alberta emphasized wind resistance in building codes, especially for mobile homes and urban developments. The disaster revealed critical weaknesses in mobile home anchoring, where 15 of the 27 fatalities occurred in trailer parks due to inadequate tie-downs against high winds. The tornado also drove evolutionary changes in emergency management protocols at both provincial and national levels. Directly spurred by the event's challenges in coordinated response, the Government of Alberta established the Alberta Emergency Management Agency (AEMA) in 1988 to centralize disaster preparedness, response, and recovery efforts. AEMA developed integrated response plans that emphasized urban tornado drills, public education on sheltering, and inter-agency collaboration, which were later adopted nationally through frameworks like the Federal Emergency Response Plan. These protocols improved overall resilience by standardizing evacuation procedures and resource allocation for severe weather events. Research following the tornado advanced understanding of tornado dynamics, particularly multi-vortex structures, influencing long-term assessment methodologies. Environment Canada, in collaboration with the , conducted detailed post-event studies analyzing the Edmonton's multiple vortices and damage patterns, which highlighted limitations in the original Fujita (F) scale for estimating intensities in complex urban settings. These findings contributed to global refinements in tornado rating systems, supporting Canada's transition to the Enhanced Fujita (EF) scale in 2013 for more accurate damage-based wind speed correlations.

Commemorations and media

The 1987 Edmonton tornado, known locally as "Black Friday," received extensive immediate media coverage from outlets like CBC and CTV, which broadcast live reports and archival footage capturing the devastation in real time. Broadcasters such as Gord Whitehead of CJCA (now 630 CHED) described the newsroom chaos, while Murray Blakely of CHQR (now iNews880) provided aerial observations via helicopter, highlighting iconic images of debris like overturned vehicles and structures strewn across the landscape. These reports emphasized the tornado's sudden intensity, contributing to its nickname "Black Friday" in local press due to the dark, tragic nature of the event on July 31, a Friday. Annual commemorations honor the 27 lives lost and the community's resilience, with a plaque installed in a small behind the Evergreen Mobile Home office, where 15 fatalities occurred. The plaque, placed on a rock amid trees, marks "Black Friday" and serves as a quiet , with the traditionally lowering flags each . Additionally, the "Pillar of " bronze sculpture by Barbara Eichner-Shaw stands in nearby Hermitage as another enduring to the victims. On the 38th anniversary, , 2025, observed the occasion with somber reflections, including media retrospectives that reinforced ongoing weather awareness. The tornado's cultural impact persists through documentaries and media portrayals that educate on risks. A notable CBC production, "July's Angry Sky," aired on October 12, 1987, compiling eyewitness accounts and footage to document the event's ferocity. Later works, such as the 2017 CTV special "Tornado '87: Edmonton 30 Years Later," featured emergency responders and survivors recounting the day, underscoring improvements in forecasting since 1987. media outlets continue to tie annual to the date, using to highlight public campaigns influenced by the disaster. Survivor narratives form a key part of the event's remembrance, compiled in reports like "Tornado: A Report—Edmonton and Strathcona County, July 31st, 1987," published by Public Safety Services with involvement, which gathers personal accounts to emphasize response lessons and human endurance. These stories, including tales of the "miracle baby" rescued from rubble, illustrate themes of and community support, often shared in anniversary media to foster resilience.

References

  1. https://www.cbc.ca/news/canada/edmonton/edmonton-tornado-black-friday-30th-anniversary-environment-canada-storm-tracking-1.4226615
  2. https://www.thecanadianencyclopedia.ca/en/article/edmonton-tornado-1987
  3. https://cdd.publicsafety.gc.ca/dtpg-eng.aspx?cultureCode=en-Ca&eventTypes=%2527TO%2527&normalizedCostYear=1&eventId=79
  4. https://cfweradio.ca/2025/07/31/black-friday-edmonton-marks-sombre-38-year-anniversary-of-deadly-tornado/
  5. https://www.eas.ualberta.ca/jdwilson/EAS270_11/lec26.pdf
  6. https://ams.confex.com/ams/pdfpapers/80919.pdf
  7. http://nwafiles.nwas.org/digest/papers/2000/Vol24No4/Pg11-Knott.pdf
  8. https://thecanadianencyclopedia.ca/en/article/edmonton-tornado-1987
  9. https://highwaysandhailstones.com/tornado/black-friday-the-f4-edmonton-tornado-of-july-31-1987/
  10. https://cmosarchives.ca/Zephyr/1987/Oct_Nov1987.pdf
  11. https://ia601300.us.archive.org/34/items/tornadoreportedm00albe_0/tornadoreportedm00albe_0.pdf
  12. https://www.publicsafety.gc.ca/lbrr/archives/hv%2520636%25201987%2520e37%25201988-eng.pdf
  13. https://edmontonjournal.com/news/local-news/can-you-over-warn-about-a-tornado-improvements-since-1987-created-a-world-with-potentially-too-much-weather-info
  14. https://www.tornadotalk.com/edmonton-alberta-f4-tornado-july-31-1987/
  15. https://edmontonsun.com/2012/07/30/time-heals-residents-of-evergreen
  16. https://www.nytimes.com/1987/08/02/world/canada-tornado-death-toll-27-search-goes-on.html
  17. https://sites.google.com/a/ualberta.ca/tornado/home/chapter-1
  18. https://www.cbc.ca/news/canada/edmonton/edmonton-to-remember-dark-day-in-1987-1.690754
  19. https://sites.google.com/a/ualberta.ca/tornado/home/chapter-3
  20. https://www.bankofcanada.ca/rates/related/inflation-calculator/
  21. https://publications.gc.ca/collections/collection_2016/dpb-pbo/YN5-86-2016-eng.pdf
  22. http://cmosarchives.ca/Bulletin/b2604S.pdf
  23. https://www.iclr.org/wp-content/uploads/PDFS/a-tornado-scenario-for-barrie-ontario.pdf
  24. https://open.alberta.ca/dataset/087af92b-785d-42d4-b32a-48aa9598f687/resource/ec1fac11-272a-46f0-947f-02423a12fa8a/download/97ib037r1.pdf
  25. https://sites.google.com/a/ualberta.ca/tornado/home/chapter-9
  26. https://www.canada.ca/en/environment-climate-change/services/seasonal-weather-hazards/enhanced-fujita-scale-wind-damage.html
  27. https://www.cbc.ca/player/play/video/1.3334252
  28. https://globalnews.ca/news/3637128/edmonton-broadcasters-remember-covering-black-friday-tornado/
  29. https://dailyhive.com/edmonton/tornado-edmonton
  30. https://www.cbc.ca/player/play/video/1.1676996
  31. https://www.youtube.com/watch?v=L-98xXnyWbQ
  32. https://www.cbc.ca/news/canada/edmonton/tornado-s-miracle-baby-thanks-the-man-who-saved-her-1.691440
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