Tornado outbreak of August 24, 2006

The Tornado outbreak of August 24, 2006, was an outbreak of 14 tornadoes in North Dakota, South Dakota, and Minnesota on August 24, 2006. The outbreak spawned three F3 tornadoes, one of which caused a fatality in Kasota, Minnesota. The severe weather outbreak also produced many reports of severe hail which caused $130 million in damage across several states.

Tornado outbreak of August 24, 2006
The F3 Nicollet/Kasota, Minnesota, tornado.
TypeTornado outbreak
DurationAugust 24, 2006
Tornadoes
confirmed		14 confirmed
Max. rating1F3 tornado
Duration of
tornado outbreak2		~13 hours
Fatalities1 fatality, 40 injuries
Damage> $44 million (+ $130 million non-tornadic)
Areas affectedUpper Midwest
1Most severe tornado damage; see Fujita scale
2Time from first tornado to last tornado

Outbreak description

A moderate risk of severe weather was issued by the SPC for August 24, with a significant threat for tornadoes, some of which could be strong. The main threat area ran from North Dakota southeastward into Minnesota and northern Iowa to western Wisconsin.[1]

Damage from the tornado in Kasota, Minnesota

The tornadoes began about noon central time in North Dakota, with three tornadoes produced there. Then, during the mid-afternoon hours, 11 more tornadoes touched down, 9 of which were in South Dakota. Two of the tornadoes in South Dakota were rated F3 on the Fujita scale - one of which touched passed near the town of Wolsey and another near Eureka. The Wosley storm was one of four tornadoes spawned in the same area from Wessington to Cavour. The three others storms in Beadle County were rated from F0 to F2.[2]

The most destructive tornado of the day was a multiple vortex F3 tornado that hit the Minnesota cities of Nicollet and Kasota. It tracked a path of 33 miles, killed one person, and caused $30 million in damages.[3] This tornado passed near but did not hit the city of St. Peter, which was devastated by the 1998 Comfrey – St. Peter tornado outbreak.

Casualties and damage

One person, a 90-year-old man, was killed when he was pinned by a tree while inside a home in Kasota.[4] Thirty-seven people were reported to have had injuries from that tornado. Five others were injured in the remaining tornadoes on this day, and in all there was $44 million in damages.

Confirmed tornadoes
Confirmed tornadoes by Fujita rating
FU F0 F1 F2 F3 F4 F5 Total
0 7 1 3 3 0 0 14
List of confirmed tornadoes
F#LocationCountyTime (UTC)Path lengthDamage
North Dakota
F0 Hebron Morton 1201 1 mile (1.6 km) Small dusty tornado struck the south edge of town, tossing around small objects, lofting tree branches, and destroying an old garage. An outbuilding was also damaged, and a pickup truck was damaged by debris.[5]
F2 SW of Underwood McLean 1255 2 miles (3.2 km) Tornado struck a farm, tearing an attached garage and much of the roof off of a farmhouse. A shop building, a wellhouse, and a garden shed on the property were also destroyed. Debris was scattered up to 1/2 mile away. Power lines were downed as well.[6]
F0 S of Steele Kidder 1403 1 mile (1.6 km) Tornado remained over open country and caused no damage.[7]
South Dakota
F1 NE of Onida Sully 2140 5 miles
(8 km)		 Tornado caused significant damage to a farmstead and scattered hay bales. The ground in a harvested sunflower field was heavily scoured.[8]
F3 SW of Eureka to SE of Hillsview McPherson 2203 14 miles
(23 km)		 Tornado devastated multiple farms, destroying homes, barns, vehicles, farming equipment, and grain bins. Trees were defoliated and debarked, and a well-anchored mobile home was completely destroyed. Debris from some sites was found up to 3 miles away from where it originated. One person sustained minor injuries.[9]
F0 N of Holabird Hyde 2210 1 mile (1.6 km) Weak tornado caused no damage.[10]
F0 N of Highmore Hyde 2235 1 mile (1.6 km) Weak tornado caused no damage.[11]
F2 W of Miller Hand 2305 5 miles
(8 km)		 Several well-built homes were heavily damaged, and a few were moved slightly off of their foundations. A large barn was destroyed, and a vehicle was moved 20 feet. Significant tree damage also occurred.
F3 S of Vayland to SW of Huron Hand, Beadle 2332 24.5 miles
(39 km)		 Large tornado. Near Vayland, several farmsteads were damaged. A mobile home was flipped and destroyed, a grain storage building was flipped onto a car, and several homes had significant roof and window damage. Numerous trees were snapped as well. Near Wessington, the tornado struck a farm and destroyed a house and several outbuildings. Five large metal high-tension truss towers were toppled in that area as well. Several farms near Wolsey were completely destroyed, and vehicles were thrown up to 50 feet away from where they originated. Some of the vehicles were badly mangled, and a pickup truck was partially wrapped around a tree.[12] Trees were snapped and debarked, power lines were downed, livestock was killed, and a small highway bridge was severely damaged before the tornado dissipated near Huron. Overall, 8 homes were destroyed, and several others were damaged. Aerial survey revealed cycloidal scour marks in farm fields. Two people were injured.[13][14]
F2 SE of Huron Beadle 0018 7 miles
(11 km)		 Tornado severely damaged 3 houses and destroyed or damaged a barn and several smaller buildings on farmsteads. The tornado knocked down power poles, with a transformer on one of the poles starting a brief fire. A tree shelter belt and some crops were damaged as well.[15]
F0 S of Huron Beadle 0023 < 1 mile Brief rope tornado caused only minor crop damage.[16]
F0 SW of Esmond Kingsbury 0056 < 1 mile Brief tornado caused no damage.[17]
Minnesota
F0 N of Searles Brown 2208 .5 mile Tornado blew two semi-trucks off of Highway-15, injuring both of the drivers. A machine shed was destroyed, and some barns and outbuildings sustained minor damage.[18]
F3 Nicollet to NW of Waterville Nicollet, Le Sueur 2230 33 miles
(53 km)		 1 death - Large, long-tracked, multiple-vortex tornado touched down in Nicollet and heavily damaged multiple homes, some of which were shifted from their foundations. One home in town lost much of its second story. The tornado rapidly intensified and completely leveled a house just south of St. Peter. Several farms in that area sustained major damage, along with a power substation. A total of 57 homes in Nicollet County were damaged, some of which were totaled. Vehicles were tossed and damaged as well.[19] In Le Sueur County, the tornado clipped the north side of Kasota, where over 100 homes suffered some damage, dozens of homes had major damage, and three were completely leveled. One man was killed in that area when a tree crashed through his roof. A few homes were also destroyed at nearby Lake Emily. Several farms were impacted and hundreds of farm animals were killed further along the path before the tornado dissipated near Waterville. Farm fields were heavily scoured along much of the path, and approximately five thousand acres of corn and soybeans were ruined. 37 people were injured, some of them severely.[20][21]
Sources: SPC Storm Reports 08/24, Aberdeen office, Sioux Falls office, Twin Cities office, NCDC Storm Event Database

Non-tornadic events

A wider area, from Montana to Michigan was also affected by large hail storms throughout the day. Southern Minnesota was especially hard hit, with hail to 4.25 in (10.8 cm) diameter reported in New Prague, and $50 million in property damage sustained in and around Northfield. Two car dealerships in Northfield lost their entire inventory of vehicles.[22] In Minnesota there was $125 million in hail damage reported.

See also

References
  1. "Aug 24, 2006 Convective Outlook". NOAA. 2006-08-24. Retrieved 2006-12-22.
  2. "Beadle County Damage Assessment Completed". NOAA. 2006-08-25. Retrieved 2006-12-22.
  3. "Tornado & Large Hail Event: August 24, 2006". NOAA. 2006-09-14. Archived from the original on 6 January 2007. Retrieved 2006-12-22.
  4. "Minnesota Tornadoes, Hail Kill 1 Man". Fox News. 2006-08-25. Retrieved 2006-12-22.
  5. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  6. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  7. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  8. "Storm Events Database - Event Details | National Centers for Environmental Information".
  9. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  10. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  11. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  12. "Damage Photos from Beadle County Tornadoes - August 24, 2006 - page 1". Archived from the original on 2006-10-15.
  13. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  14. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  15. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  16. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  17. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  18. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  19. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  20. NCEI. "Storm Events Database - Event Details - National Centers for Environmental Information".
  21. "Tornado and Large Hail Event: August 24, 2006" (PDF). National Oceanic and Atmospheric Administration. Retrieved March 24, 2023.
  22. "Event Record Details". National Climatic Data Center. Retrieved 12 July 2007.
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