Flint–Worcester tornado outbreak sequence explained

Flint–Worcester tornado outbreak
Type:Tornado outbreak
Active:June 7–9, 1953
Tornadoes:50[1]
Fujitascale:F5
Tornado Duration:3 days
Casualties:251 fatalities, 2,619 injuries
Damages:$340.6 million (1953 USD)
$ (USD)[2]
Enhanced:no
Partof:the tornado outbreaks of 1953

An extremely devastating and deadly tornado outbreak sequence impacted the Midwestern and Northeastern United States at the beginning of June 1953. It included two tornadoes that caused at least 90 deaths each—an F5 tornado occurring in Flint, Michigan, on June 8 and an F4 tornado in Worcester, Massachusetts, on June 9. These tornadoes are among the deadliest in United States history and were caused by the same storm system that moved eastward across the nation.

The Flint-Worcester Tornadoes were the most infamous storms produced by a larger outbreak of severe weather that began in Nebraska, Iowa and Wisconsin, before moving across the Great Lakes states, and then into New York and New England. Other F3 and F4 tornadoes struck other locations in Massachusetts, Michigan, New Hampshire and Ohio.

Meteorological synopsis

On June 6, a surface low-pressure area formed over Northwestern New Mexico and eventually began to move northeastward into the Great Plains. On June 7, the low-pressure system moved into Southwestern Nebraska with a cold front extending a short distance westward into Northeastern Colorado, a dryline that extended south into Southwestern Texas, and a warm front that extended east-northeastward to near Omaha, Nebraska before turning east-southeastward into Southwestern Indiana. Temperatures across Kansas, Nebraska, and Iowa that afternoon in the area were up in the upper 70s to lower 90s Fahrenheit while dewpoints were in the lower 60s to lower 70s. With shear values of 55 knots in the upper atmosphere, the environment became extremely ripe for the development of severe weather and tornadoes throughout the afternoon and evening. A jet streak formed later that night after an upper-level low formed, which allowed the outbreak to go well into the overnight hours.

By June 8, the surface low and upper-level low had moved into Canada. The surface low occluded with the warm front over the Eastern Great Lakes into Ontario and New York and the cold front extending southwestward into Southeastern Iowa. A surface boundary formed, spanning from Eastern Upper Michigan southwestward into Southwestern Illinois. Upper-level wind shear values were even stronger on this day, reaching as high as 65 knots. Temperatures were in the upper 70s to upper 80s Fahrenheit with dewpoints in the mid 60s to mid 70s. This allowed for a line of violent tornadic supercells to form across Eastern Lower Michigan into Northwestern Ohio. These storms marched eastward throughout the afternoon before weakening that evening.

On June 9, the cold front from the surface low over Eastern Ontario had moved into New England. A shortwave trough had formed over the region in the upper atmosphere, conjuring up extremely strong wind shear values of 100 knots. At the surface, temperatures were in the upper 70s to mid 80s Fahrenheit with dewpoints in the mid 60s to lower 70s. Numerous supercell thunderstorms formed along the cold front, spawning wind, hail, and tornadoes before weakening and moving offshore that evening.[3] [4]

Confirmed tornadoes

June 7 event

List of confirmed tornadoes – Sunday, June 7, 1953
F#LocationCounty / ParishStateStart
Time (UTC)Path length widthSummary
bgcolor=# F1E of MorlandGrahamKS19:00–?0.1miles33ydThis tornado, which was accompanied by large hail and strong winds, was the first of three tornadoes produced by the same squall line, which damaged six farmsteads. There was $25,000 in damage.
bgcolor=# F2S of Hill CityGrahamKS19:00–?0.1miles33ydThis tornado, which was accompanied by large hail and strong winds, was the second of three tornadoes produced by the same squall line, which damaged six farmsteads. There was $25,000 in damage.
bgcolor=# F0S of Edmond to SSW of LoganGraham, NortonKS19:00–?10.9miles33ydThis tornado, which was accompanied by large hail and strong winds, was the third of three tornadoes produced by the same squall line, which damaged six farmsteads. There was $25,000 in damage.
bgcolor=# F1WSW of Julesburg (1st tornado)SedgwickCO20:00–?0.1miles33ydThis was the first of five tornadoes in the area and the only one that caused known damage, which was limited to small farm buildings and equipment. There was $2,500 in damage.
bgcolor=# F1N of JulesburgSedgwickCO20:00–?0.1miles33ydThis was the second of five tornadoes in the area. There was no damage value given.
bgcolor=# F2ENE of Mason City to SW of ArcadiaCuster, ShermanNE20:30–?6.6miles100ydFarm houses were destroyed and livestock were killed. Barns were leveled as well. Losses totaled $500,000.
bgcolor=# F2WNW of Giltner to SSW of PhillipsHamiltonNE21:00–?6.6miles33ydA strong tornado damaged sets of farm buildings on three farms while ripping roofs off of homes. There was $25,000 in damage.
bgcolor=# F0S of PhillipsHamiltonNE21:00–?4.1miles33ydThere was $2,500 in damage.
bgcolor=# F1ENE of Rising City to Octavia to WNW of LinwoodButlerNE21:00–?22.7miles33ydBarns were destroyed on a dozen farms with losses totaling $25,000 in damage. Two people were injured. The CDNS report states that the tornado injured four and was short-lived, implying that this was actually a tornado family.
bgcolor=# F4S of Arcadia to WSW of OrdSherman, ValleyNE21:15–?15miles440yd11 deaths – Homes were completely leveled and two cars were destroyed, including one that was thrown NaNabbr=outNaNabbr=out through the air. The worst damage occurred near Arcadia, where a farm was swept away, killing 10 people at a family reunion. Bodies were thrown up to NaNabbr=outNaNabbr=out from the residence. Farm machinery was thrown as well. Losses totaled $500,000.
bgcolor=# F0WSW of Julesburg (2nd tornado)SedgwickCO22:00–?0.1miles33ydThis was the third of five tornadoes in the area. There was no damage.
bgcolor=# F2E of Scotia to Greeley to SpaldingGreeleyNE22:00–?20.1miles33ydThis was more than likely a family of tornadoes linked by strong winds. There was one injury and $25,000 in damage. The CDNS report does not list any casualties.
bgcolor=# F0SW of JulesburgSedgwickCO22:00–?0.1miles33ydThis was the fourth of five tornadoes in the area. There was no damage.
bgcolor=# F0NW of JulesburgSedgwickCO22:00–?0.1miles33ydThis was the fifth of five tornadoes in the area. There was no damage.
bgcolor=# F2WNW of Octavia to WNW of LinwoodButlerNE22:00–?6.9miles33ydThis strong tornado, which accompanied by spotted hail in the vicinity, barely missed Octavia and Linwood while moving over farmland. Losses totaled $250,000 and two people were injured. The CDNS report does not list any casualties.
bgcolor=# F3NW of Albion to SE of PetersburgBooneNE22:15–?8miles250ydThis intense tornado touched down northwest of Albion and Boone and moved northward. A house was destroyed along with multiple barns. Paint was stripped from a tractor and livestock were killed. Losses totaled $250,000 and one person was injured, although the CDNS report does not list any casualties.
bgcolor=# F0Macon to SE of UplandFranklinNE22:30–?9miles33ydA weak tornado stayed mostly over open terrain, causing $25,000 in damage.
bgcolor=# F1E of Franklin to UplandFranklinNE23:00–?15miles33ydThis tornado, which was embedded within a much larger swath of hail, moved north-northwestward over farmland, causing $2,500 in damage.
bgcolor=# F2SW of Battle Creek to S of PierceMadison, PierceNE23:00–?16.6miles33ydTwo sets of farm buildings were badly damaged and there was minor damage to crops. No damage value was given.
bgcolor=# F2SW of Pierce to Sholes to SW of LaurelPierce, Wayne, CedarNE23:00–?31miles33ydBarns and outbuildings were destroyed on a dozen farms. Six people were injured and losses totaled $50,000. Two other tornadoes were seen with this tornado, which may include the one above.
bgcolor=# F1W of Foster to SSW of OsmondPierceNE23:10–?8.2miles33ydA set of farm buildings were struck, but only minor damage occurred. Losses totaled $250.
bgcolor=# F0NW of AllenDixonNE23:40–?1.5miles33ydThis weak tornado, which was accompanied by small hail, caused mostly minor damage, although one person was injured. Damage totaled $2,500. The exact track of the tornado is unknown.
bgcolor=# F0N of MitchellDavisonSD23:45–?1.5miles33ydA brief tornado occurred south of Davison-Sanborn County line. No damage occurred.
bgcolor=# F2WestfieldPlymouthIA00:15–?11.3miles200ydBarns were destroyed, although no damage value was given. This was the first of a family of five tornadoes to touch down over the course of 3.25 hours. Wind squalls also accompanied this storm and the tornadoes.
bgcolor=# F2NW of BlairWashingtonNE00:45–?4.1miles33ydA strong tornado caused damage to buildings and crops over open terrain. Losses totaled $25,000. The CDNS report listed the tornado as being closer to Foster than Blair.
bgcolor=# F1SE of Trimont to South Branch to SE of GroganMartin, WatonwanMN01:00–?19.1miles33ydSeveral barns and other outbuildings, silos, windmills, and a steel grain bin were destroyed by this weak, but destructive tornado, which was first observed as a funnel cloud aloft near Trimont and accompanied by heavy rain. Power poles and wires were down, trees were uprooted and livestock and poultry were killed. Losses totaled $25,000.
bgcolor=# F0S of HooperDodgeNE01:00–?1miles33ydA set of farm buildings and barns were destroyed with only the house left intact. No damage value was given, but five people were injured. The CDNS report lists only four injuries.
bgcolor=# F0SE of Milford ColonyLewis and ClarkMT01:00–?0.1miles33ydA brief tornado touch down from one of two funnel clouds southeast of Augusta. There was no damage.
bgcolor=# F2N of Ida Grove to Plover to E of FentonIda, Sac, Pocahontas, Palo Alto, KossuthIA01:30–02:2049.2miles833ydThis was the second of a family of five tornadoes to touch down over the course of 3.25 hours and caused some of the worst damage. This large tornado first touched down near Ida Grove and moved northeastward before lifting temporarily northwest of Early. It then touched down again over Havelock and again moved northeastward, slicing through Plover before shrinking to 500yd wide, striking Whittemore, and dissipating halfway between Fenton and Lone Rock. Damage mainly consisted of barns and crops being destroyed, although no damage value was given.
bgcolor=# F2N of Gowrie to Duncombe to SW of OlafWebster, Hamilton, WrightIA03:00–?49miles200ydThis was the third of a family of five tornadoes to touch down over the course of 3.25 hours. The worst damage occurred in Duncombe, near Holmes, and west of Belmond. Damage also occurred in Lundgren and Eagle Grove. A church was lifted up and set down again and barns were destroyed, although no damage value was given. This tornado may have occurred after the one listed below according to the CDNS report.
bgcolor=# F3W of Pomeroy to Southeastern Palmer to SSW of LivermoreCalhoun, Pocahontas, HumboldtIA03:15–03:3030.7miles200ydThis was the fourth of a family of five tornadoes to touch down over the course of 3.25 hours and caused some of the worst damage. The tornado first was reported near Pomeroy and moved northeastward, causing severe damage on the southeast side of Palmer. Damage also occurred near Gilmore City before the tornado dissipated near Livermore. No damage value was given. This tornado may have occurred before the one listed above according to the CDNS report.
bgcolor=# F1E of Boxholm to Stanhope to JewellBoone, HamiltonIA03:30–?2.3miles100ydThis was the last of a family of five tornadoes to touch down over the course of 3.25 hours. Although the official record says that the tornado only travelled between Boxholm and Pilot Mound (where it was first reported), the CDNS report says that the tornado travelled to the vicinity of Jewell, causing severe damage near Stanhope. No damage value was given, but the storm as a whole caused $1.35 million in damage according to the CDNS report.
bgcolor=# F2NE of Winterset to Prairie City to E of WalfordMadison, Warren, Polk, Jasper, Poweshiek, Iowa, Johnson, LinnIA03:15–05:00116miles100ydThis long-tracked tornado, which may have been a tornado family, was first identified as a funnel cloud near Carson and later near Highland Church in Adair County about an hour before it touched down. It then came down well northeast of Winterset and tracked intermittently east-northeastward into the south side of the Des Moines metropolitan area, passing south of Cumming before striking Norwalk, south of the Des Moines International Airport. It then struck areas north of Prairie Cityand passed near the airports south of Newton and Grinnell. After passing north of Brooklyn and near Hartwick, the tornado passed north of Marengo before finally dissipating north of Ely south of Cedar Rapids. Damage consisted of several barns and crops being destroyed. No damage value was given, although the CDNS report says damage reached $200,000.
bgcolor=# F0WNW of Tampa to SW of HeringtonMarion, DickinsonKS04:45–?12.6miles33ydA small, skipping tornado accompanied by damaging winds and hail damaged or destroyed buildings on three or four farms. Damage totaled $25,000. Buildings destroyed northwest of Council Grove, where a whistling sound was heard, may have been caused by this tornado as well. Wind-driven hail also caused crop damage.
Source: SPC Tornado data, NCDC Storm Events Database, CDNS report, Historical Tornado Cases for North America 1950-1959, Grazulis 1993

June 8 event

F#! scope="col" style="width:7%; text-align:center;" class="unsortable"
LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax widthSummary
bgcolor=# F1NW of Big SpringsDeuelNE22:00–?0.1miles83ydThree tornadoes touched down in this area with this one being the only one to cause damage, which was estimated at $250.
bgcolor=# F0N of Big SpringsDeuelNE22:00–?0.1miles10ydThis was one of three tornadoes to touch down in this area; there was no damage.
bgcolor=# F0ENE of Big SpringsDeuelNE22:00–?0.1miles10ydThis was one of three tornadoes to touch down in this area; there was no damage.
bgcolor=# F4Temperance to Southern Erie to ESE of ViennaMonroeMI23:15–?5.4miles200yd4 deaths – A total of 15 houses were destroyed and 14 more were damaged by this violent, stovepipe tornado. Trucks and cars were hurled through the air as well. Damage was estimated at $250,000 in damage and 18 people were injured.
bgcolor=# F4NE of Deshler to Northern Cygnet to Western ClevelandHenry, Wood, Sandusky, Erie, Lorain, CuyahogaOH00:00–?118miles100yd17 deaths – This extremely long-tracked tornado, which was likely a tornado family according to Grazulis and the CDNS report, started near Delsher, where the first tornado (F4+) touched down and moved northeast before turning due east and striking the north edge of Cygnet, where homes were swept away at possible F5 intensity, and eight people were killed. This first tornado destroyed a steel and concrete bridge as it passed near Jerry City. The second tornado (F3) touched down east of Kimball, passed south of Ceylon and ended near Vermilion, destroying multiple homes along the path and killing one person. The third tornado (F3) touched down east of Elyria, and tore across Western Cleveland. It killed seven and destroyed at least 100 homes before moving offshore into Lake Erie. 379 people were injured, but no damage value was given.
bgcolor=# F3NE of Manchester, Michigan to SW of Ann ArborWashtenawMI00:30–?11.3miles70yd1 death – An intense tornado traveled at 15mph20mph through mostly open country. A large tree landed on one house while another house along with three barns and several smaller buildings were leveled. Five people were injured and damage was estimated at $25,000.
bgcolor=# F3MilfordLivingston, OaklandMI00:30–?9.1miles200ydAn intense tornado embedded within an area of strong straight-line winds was spotted as a funnel cloud over Brighton before touching down and damaging several buildings at the GM Proving Grounds 5abbr=outNaNabbr=out west of Milford. The damage path extended to the center of Milford with the tornado moving at 35mph40mph. Four homes, a barn, and 24 cars were destroyed, five stores and a post office were damaged, 11 people were injured, and damages were estimated at $5 million.
bgcolor=# F2E of Sand Lake to N of OscodaIoscoMI00:40–?16.6miles833yd4 deaths – A large, strong tornado, which was accompanied by NaNinches hail, leveled five vacation cabins, and badly damaged six others. Six other buildings were destroyed as well. The deaths came from a single family at the beginning of the path near Indian Lake. 13 others were injured and losses were estimated at $250,000. The tornado was reported to have had a double funnel in Wilber Township. Grazulis gave the tornado an F3 rating.
bgcolor=# F3S of SpruceAlconaMI01:08–?1.8miles100ydFive large barns were destroyed and livestock were killed. Losses totaled $250,000. Grazulis gave the tornado an F2 rating.
bgcolor=# F5N of Flushing to Beecher to N of ColumbiavilleGenesee, LapeerMI01:30–?18.9miles833yd116 deaths – See article on this tornado – There were 844 injuries.
bgcolor=# F0SW of CasevilleHuronMI03:00–?0.1miles33ydA tornado was sighted aloft; no damage occurred.
bgcolor=# F4N of Kings Mill to N of Port HuronLapeer, St. ClairMI03:30–?33.8miles833ydThis violent tornado formed after the Flint tornado dissipated. Several homes and barns were blown away, 23 people were injured, and losses were estimated at $500,000. It may have also killed a man and seriously injured several of his family members near the St. Clair County line when their home was destroyed, but this is not officially documented.
Source: SPC Tornado data, NCDC Storm Events Database, CDNS report, Historical Tornado Cases for North America 1950-1959, Grazulis 1993

June 9 event

F#! scope="col" style="width:7%; text-align:center;" class="unsortable"
LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax widthSummary
bgcolor=# F4E of Petersham to Northern Worcester NE of FayvilleWorcesterMA20:25–?48miles1760yd94 deaths – See article on this tornado – 1,288 people were injured.
bgcolor=# F3ExeterRockinghamNH21:20–?1.5miles100ydA strong tornado tore the roofs off 15 homes and businesses in the Jady Hill part of Exeter while also destroying the Exeter Country Club lodge. Five people were injured and losses were estimated at $25,000. The tornado was described as having a double funnel, although one of the funnels did not touch down.
bgcolor=# F3SSW of Millbury to NE of MansfieldWorcester, Norfolk, BristolMA21:30–?28miles667ydThis large, intense tornado formed after the Worcester tornado dissipated and devastated Wrentham, Southern Foxborough and Western Mansfield. Cars and trucks were overturned, numerous trees were downed and homes sustained roof and wall damage. A total of 17 people were injured and losses totaled $7.5 million.
bgcolor=# F1RollinsfordStraffordNH22:00–?1miles40ydA weak tornado damaged an orchard, woodland, and a small farm building with losses estimated at $250.
Source: SPC Tornado data, NCDC Storm Events Database, CDNS report, Historical Tornado Cases for North America 1950-1959, Grazulis 1993

Flushing–Northern Flint–Beecher–Columbiaville, Michigan

Flushing–Northern Flint–Beecher–Columbiaville, Michigan
Fujitascale:F5
Total Fatalities:116 fatalities, 844 injuries
Enhanced:no

See main article: article and 1953 Flint–Beecher tornado. This catastrophic, violent, multi-vortex F5 tornado was one of the deadliest tornadoes ever recorded in the United States, devastating the Flint, Michigan suburb of Beecher.[5] The tornado first formed at about 8:30 p.m. on June 8 north of Flushing, Michigan. The tornado than moved eastward along Coldwater Road, moving directly through Beecher, Michigan with little to no warning, obliterating almost every structure in its path. Multiple deaths were reported in 20 families, and it was reported that papers from Flint were deposited in Sarnia, Ontario, Canada, some 60miles east of Flint. Large sections of neighborhoods were completely swept away, with only foundations left. Trees were debarked and vehicles were thrown and mangled and the Beecher High School was heavily damaged. Many patrons at the North Flint Drive-in theater evacuated the drive-in in their vehicles. Some got into vehicle crashes in the ensuing panic to flee while others inadvertently drove into the path of the tornado after leaving the theater. The theater itself received only minor damage. The tornado then moved east-northeastward, causing additional damaged before dissipating near Columbiaville. One hundred and sixteen were killed,[6] making it the tenth deadliest tornado in U.S. history.[7] The death toll was surpassed by the 2011 Joplin tornado.[8] It is also one of only two F5 tornadoes ever to occur in Michigan. Another F5 tornado would hit in Hudsonville on April 3, 1956.[9]

Worcester, Massachusetts

Worcester, Massachusetts
Fujitascale:F4
Total Fatalities:94 fatalities, 1,288 injuries
Enhanced:no

See main article: article and 1953 Worcester tornado. The storm system that created the Flint tornado moved eastward over southern Ontario and Lake Erie during the early morning hours of June 9. As radar was still primitive (or nonexistent) in 1953, inadequate severe weather predictions resulted. (Even during the Super Outbreak of April 3, 1974, weather radar was still not up to this task; that outbreak resulted in a technological upgrade.) The Weather Bureau in Buffalo, New York merely predicted thunderstorms and said that "a tornado may occur." As early as 10:00 a.m. EST, however, the Weather Bureau in Boston anticipated the likelihood of tornadic conditions that afternoon but feared the word "tornado" would strike panic in the public, and refrained from using it. Instead, as a compromise, they issued New England's first-ever severe thunderstorm watch.[10]

Rain fell across Worcester County throughout the day on June 9.[11] In New York, a strong cluster of thunderstorms began to build, moving eastward into Massachusetts. At approximately 4:25 p.m., a funnel cloud formed near the Quabbin Reservoir near New Salem.[12] Very soon after, the tornado developed in a forest outside of the rural community of Petersham. The tornado then proceeded to pass through a farm field, where it struck a farmhouse and killed two people. As the storm moved eastward at approximately 35mph, it hit the towns of Rutland and Holden, where 11 people were killed in total.[10] (Grazulis, 1993)[9]

At about 5:00 p.m., the tornado moved into the city of Worcester, alarming many residents. According to eyewitness accounts, the storm moved in extremely quickly, shocking the townsfolk. "I saw it grow noticeably darker," said eyewitness George Carlson, "Then it hit. Houses tumbled, trees fell, and it was all over. The tornado was definitely discernible. Like when you can see the lines of rain in an approaching rainstorm," he added.[13] The tornado, which had grown to 1abbr=outNaNabbr=out in width, destroyed several structures in Northern Worcester, including parts of Assumption College. Other major structures included a newly built factory and a large residential development. Residential areas were devastated and entire rows of homes were swept away at possible F5 intensity.[9]

At approximately 5:20 p.m., the tornado crossed the far north end of Lake Quinsigamond, and began to move through Shrewsbury. Transmission towers were snapped in half, cutting off power to thousands of people in Shrewsbury and the surrounding towns. Dozens of homes between Maple Avenue and Grafton Street were destroyed, some completely swept away. The funnel maintained its 1miles width as it passed throughout much of Shrewsbury, and still dealt a high degree of damage when it moved through downtown Westborough, where it began curving towards the northeast in its final leg.[14] In the storm's final moments, three were killed when Fayville Post Office in Southborough collapsed.[14] Around the time it ended, at 5:45 p.m., a tornado warning was issued, although by then it was too late.[14]

The final death toll was 94, the highest number of deaths ever resulting from an F4/EF4 tornado.[15] 1,288 other people were injured.[9]

1953 tornado season in perspective

See main article: Tornadoes of 1953.

Outbreak death toll
StateTotalCountyCounty
total
Massachusetts94Worcester94
Michigan125Genesee116
Iosco4
Monroe4
Washtenaw1
Nebraska11Valley11
Ohio17Cuyahoga6
Erie2
Henry5
Lorain1
Wood3
Totals251
All deaths were tornado-related
The year 1953 saw some of the deadliest tornadoes in U.S. history, including the Waco tornado that hit on May 11, the Flint tornado of June 8, and the Worcester tornado on June 9. These 3 storms were also unique in occurring within a 30-day period.

Other severe tornadoes of 1953 hit Warner Robins, Georgia in April, San Angelo, Texas in May (same day as Waco), Port Huron, Michigan later in May, Cleveland in June (same day as Flint and the day before Worcester), and Vicksburg, Mississippi in December.[16]

See also

References

Bibliography

External links

Notes and References

  1. Web site: Tornado History Project: The Flint – Worcester Outbreak . www.tornadohistoryproject.com . 12 October 2020.
  2. Web site: Storm Events Database – Search Results National Centers for Environmental Information . www.ncdc.noaa.gov . 12 October 2020.
  3. Web site: North America Tornado Cases 1950 to 1959 . bangladeshtornadoes.org . 16 October 2020.
  4. Climatological Data: National summary . U.S. Department of Commerce, Weather Bureau. . 21 August 2022 . en . 1953 . 4 . 2 . 37.
  5. Web site: Southeast Michigan Tornado Climatology . National Oceanic and Atmospheric Administration . 2007-01-03 .
  6. Web site: 1953 Beecher Tornado . National Oceanic and Atmospheric Administration . 2007-01-03 .
  7. Web site: The 25 Deadliest U.S. Tornadoes. National Weather Service Storm Prediction Center. 24 May 2011.
  8. News: Joplin, Mo., single deadliest tornado since 1950. CBS News .
  9. Book: Grazulis, Thomas P . Significant Tornadoes 1680–1991 . July 1993 . The Tornado Project of Environmental Films . St. Johnsbury, VT . 1-879362-03-1 .
  10. Book: O'Toole, John . Tornado! 84 Minutes, 94 Lives . September 16, 2013 . 1993 . Chandler House Press . 9780963627704.
  11. Pletcher 2006 p. 155
  12. Web site: Through history, Massachusetts tornadoes not unprecendented, and very deadly. Stan. Freeman. June 5, 2011. masslive.
  13. News: Wheeler. James R.. Randall Street homes grim reminders of death, destruction. 1 August 2010. Worcester Telegram. June 10, 1953.
  14. Book: Chittick, William F.. The Worcester tornado: June 9, 1953. 2003. W.F. Chittick. 19.
  15. Web site: F4 Tornado . Facts Just for Kids . 5 January 2022 . 19 July 2021.
  16. Web site: Tornado History Project: 1953. www.tornadohistoryproject.com.