2035 Northfield tornado
 | |
| Meteorological history | |
|---|---|
| Formed | May 23, 2035, 11:55 p.m. CDT (UTC–05:00) |
| Dissipated | May 24, 2035, 12:35 a.m. CDT (UTC–05:00) |
| Duration | 40 minutes |
| EF4 tornado | |
| on the Enhanced Fujita scale | |
| Max width | 1,355 yards (0.77 mi; 1.2 km) |
| Path length | 19.5 miles (31.4 km) |
| Highest winds | 175 mph (282 km/h) |
| Overall effects | |
| Fatalities | 9 |
| Injuries | 96 |
| Damage | $275 million (2035 USD) |
| Areas affected | Rice and Dakota counties in Minnesota, particularly the city of Northfield |
Part of the tornado outbreak of May 22–24, 2035 and tornado outbreaks of 2035 | |
The 2035 Northfield tornado was a large and destructive low-end EF4 tornado that struck Rice and Dakota counties in southern Minnesota on the night of May 23, 2035. With peak winds estimated at 175 mph (282 km/h), the tornado killed 9 people, injured 96 others, and caused approximately $275 million (2035 USD) in damage. It remained on the ground for 40 minutes, tracking 19.5 miles (31.4 km) from southwest of Northfield to near Castle Rock.
The tornado developed from a long-lived supercell during the most intense phase of the tornado outbreak of May 22–24, 2035, which produced 42 tornadoes across Nebraska, Minnesota, Wisconsin, Iowa, and eastern South Dakota. Forming less than two hours after the violent Lake Crystal EF5 tornado, the Northfield tornado became the second-strongest tornado of the outbreak and one of two EF4 tornadoes produced during the event.
Although overshadowed by the Lake Crystal EF5, the Northfield tornado caused widespread devastation as it crossed the city during the overnight hours. Hundreds of homes, businesses, and public buildings sustained damage, while numerous well-built residences were destroyed. Following detailed engineering surveys, the tornado received a low-end EF4 rating with estimated peak winds of 175 mph (282 km/h), making it one of the strongest tornadoes ever documented in Rice County.
Meteorological synopsis
During the morning hours of May 23, 2035, a powerful mid-level trough moved eastward across the northern Plains while a rapidly deepening surface low tracked into the eastern Dakotas. In response, warm, moisture-rich air surged northward from the Gulf of Mexico into southern Minnesota, where surface dew points climbed into the upper 60s and lower 70s °F (20–22 °C). Strong daytime heating pushed afternoon temperatures into the lower and middle 80s °F (27–29 °C), producing a highly unstable atmosphere. Meanwhile, strengthening south-southeasterly surface winds beneath an intensifying southwesterly jet stream created pronounced vertical wind shear and large, curved hodographs favorable for long-lived rotating supercells.
By early afternoon, the Storm Prediction Center issued a Moderate Risk (level 4/5) for severe thunderstorms across much of southern Minnesota and portions of western Wisconsin. Mixed-layer CAPE values reached between 3,000 and 4,500 J/kg, while effective bulk shear exceeded 60 knots (69 mph; 111 km/h). Isolated thunderstorms developed during the late afternoon along an advancing cold front in eastern South Dakota before rapidly intensifying into discrete supercells as they crossed into Minnesota. Additional storms formed ahead of the front within the warm sector, where minimal convective interference allowed individual supercells to remain isolated for several hours.
The supercell responsible for the Northfield tornado first developed over eastern South Dakota during the evening before tracking northeast across southern Minnesota. Although it initially produced only intermittent severe weather, the storm rapidly intensified after sunset as the low-level jet strengthened and storm-relative helicity increased. Shortly before midnight, the storm developed a persistent, intense mesocyclone southwest of Northfield, where it produced a violent tornado that reached low-end EF4 intensity as it crossed the city. The tornado remained on the ground for 40 minutes before weakening and dissipating near Castle Rock shortly after midnight on May 24, as the storm gradually became embedded within a developing mesoscale convective system.
Tornado summary
Formation
The tornado touched down at approximately 11:55 p.m. CDT on May 23, 2035, southwest of Northfield in rural Rice County as a rapidly intensifying supercell tracked northeast across southern Minnesota. Initially a narrow condensation funnel, the tornado quickly strengthened while crossing open farmland, producing EF0 to EF1 damage to farmsteads, outbuildings, trees, and power poles. Radar imagery indicated that the parent supercell had developed a strong, persistent low-level mesocyclone as the nocturnal low-level jet intensified, allowing the tornado to rapidly organize and expand.
Within minutes of touching down, the tornado widened into a large wedge while moving northeast at approximately 28–30 mph (45–48 km/h). Damage steadily increased in intensity as numerous farms were heavily damaged or destroyed southwest of the city. By the time the tornado approached the southern outskirts of Northfield, it had already reached high-end EF3 intensity and continued to strengthen.
Peak intensity in Northfield
The tornado reached its maximum intensity as it crossed through Northfield, producing low-end EF4 damage with estimated peak winds of 175 mph (282 km/h). Entire residential blocks sustained catastrophic damage as numerous well-built homes were completely destroyed, several being swept from their foundations. Extensive damage also occurred to commercial buildings, apartment complexes, and public facilities, while hundreds of mature hardwood trees were snapped, uprooted, or completely debarked. Numerous vehicles were thrown considerable distances, and widespread power flashes illuminated the tornado as transmission lines and electrical substations failed throughout the city.
Damage survey teams documented several instances of complete structural failure, though engineering analysis concluded that remaining construction evidence and damage indicators supported a low-end EF4 rating rather than EF5 intensity. The tornado maintained peak strength for several minutes while moving through the eastern portion of Northfield before gradually beginning to weaken as it exited the city. Despite this, destructive EF3 and EF2 damage continued well into rural Dakota County.
Dissipation
After leaving Northfield, the tornado continued northeast across rural portions of Rice and Dakota counties while gradually narrowing in width. Although weakening, it continued to damage farmsteads, destroy outbuildings, overturn irrigation equipment, and snap hundreds of trees and power poles. The tornado finally dissipated near Castle Rock at approximately 12:35 a.m. CDT on May 24, after remaining on the ground for 40 minutes and traveling 19.5 miles (31.4 km).
The parent supercell continued northeast into eastern Minnesota before gradually weakening as it became embedded within a larger mesoscale convective system. Although additional severe thunderstorms persisted elsewhere across the Upper Midwest into the early morning hours, the Northfield tornado was the final violent tornado produced by the storm.
Aftermath
Casualties and recovery efforts
The tornado killed nine people and injured 96 others, making it the second-deadliest tornado of the outbreak behind the Lake Crystal EF5. Many of the fatalities occurred in residential neighborhoods where well-built homes were completely destroyed during the tornado's peak intensity. Hundreds of residents were displaced as entire subdivisions sustained severe damage or were left uninhabitable.
Emergency response operations began immediately after the tornado passed shortly after midnight. Fire departments, law enforcement agencies, emergency medical services, and volunteer firefighters from throughout Rice and Dakota counties responded to the city, conducting overnight search-and-rescue operations among collapsed homes and damaged businesses. Mutual aid was requested from neighboring communities as hospitals in Northfield, Faribault, and the Twin Cities treated dozens of injured residents. Utility crews worked for several days to restore electricity after widespread damage to transmission lines and distribution infrastructure left much of the city without power.
Historical significance
The Northfield tornado was officially rated EF4 with estimated peak winds of 175 mph (282 km/h), making it one of the strongest tornadoes ever documented in Rice County and among the most intense tornadoes to strike Minnesota during the 21st century. Although it was overshadowed by the violent Lake Crystal EF5 later that evening, the tornado demonstrated that exceptionally intense nocturnal tornadoes can occur in southern Minnesota when favorable environmental conditions persist after sunset.
The tornado was the second-strongest of the May 22–24, 2035 tornado outbreak, exceeded only by the Lake Crystal EF5. Together, the two violent tornadoes produced some of the most significant tornado damage ever documented in Minnesota, with the Northfield tornado becoming one of the costliest and deadliest tornadoes in the state's modern history. It remains a benchmark event in severe-weather research and emergency management planning for Rice County and the surrounding region.