2023 Robinson–Sullivan tornado

The surrounding area, which extended into central portions of Kentucky and Tennessee, extreme southwestern Indiana, and northwestern Alabama, was given a 10% hatched risk for tornadoes.

The first high risk area covered southeastern Iowa, northwestern Illinois, and far northeastern Missouri, while the second included eastern Arkansas, southwestern Tennessee, and northern Mississippi.

Supercells would be more scattered, but longer tracked within the southern high-risk area with multiple rounds of tornadic storms capable of producing long-lived strong to violent tornadoes expected.

[2] After dark, despite the absence of daylight heating, strong wind shear continued to support the squall line over northern Illinois and southern Wisconsin.

As it passed near Pierceburg, the tornado collapsed the roof structure of a machine shed, snapped wooden power poles, and sheared off the tops of trees.

[8][9][7] Aerial video showed major impacts to several rural homes and farmsteads in this area, as multiple houses, barns, and outbuildings were destroyed with debris scattered long distances across fields.

A large 1,000 gallon propane tank was also thrown out into a farm field, a Jeep was rolled, a lawn tractor was found wrapped around a tree, and aerial imagery revealed ground scouring along this segment of the path.

[12] Moving into the southern fringes of Robinson, the tornado maintained EF2 to EF3 strength as it continued northeastward, completely destroying two mobile homes along County Highway 9, killing one person in each structure.

Several other nearby homes sustained significant damage, and a large but poorly-anchored two-story house near North While Tail Hollow was almost completely leveled at high-end EF3 intensity, leaving only one wall standing.

Multiple metal airplane hangars, which had rigid steel beam frames measuring greater than 18 inches (46 cm) in diameter, were completely destroyed, including some that were swept away.

[8][9][7] The tornado then crossed the Wabash River into Sullivan County, Indiana, just north of Riverton, maintaining high-end EF1 to EF2 strength as it passed to the south of Merom.

Several barns and outbuildings were completely demolished, farming equipment was tossed around, a residence sustained roof damage, and numerous large trees and power poles were snapped.

The tornado continued to intensify as it passed through rural areas to the northwest of New Lebanon, where four metal truss electrical transmission towers were collapsed at EF3 intensity.

The tornado then quickly weakened as it exited Sullivan and continued to the east-northeast, overturning a dump truck and damaging trees in wooded areas before dissipating to the east of the town.

The storm system that was responsible for the tornado outbreak, seen earlier on March 31
The tornado emergency that was issued by the National Weather Service as the tornado approached Robinson at EF3 intensity.
Track map of the tornado as it moved through the eastern fringes of Robinson and areas just south of Gordon. [ note 1 ]
Key
EF0 65–85 mph
EF1 86–110 mph
EF2 111–135 mph
EF3 136–165 mph
NEXRAD radar scan of the tornado as it moved through rural areas west of Sullivan.
Track map of the tornado as it moved through Sullivan. [ note 1 ]
Key
EF0 65–85 mph
EF1 86–110 mph
EF2 111–135 mph
EF3 136–165 mph
EF3 damage to a poorly-anchored block foundation home in Sullivan.