The June 23, 2002 tornado

F4Brown County, South Dakota

An F4 tornado on a 9.0-mile path. It was one of 8 tornadoes recorded in the U.S. that day, 2 of them rated F3/EF3 or stronger.

Watch how it happened

F4 tornado · June 23, 2002

How it happened

Follow the tornado’s path, minute by minute.

About this replay
Local time (CST)—Historical replay — logged times
Distance—of 9.0 miles
Now in—
RatingF4

The tornado

Rating
F4
Fujita scale
Path length
9.0 mi
Width up to 900 yards
Killed
0
Along the whole path
Injured
0
Along the whole path
Date and time
Sunday, June 23, 2002
7:24 PM CST
That day
8
tornadoes in the U.S.; more on this date

The National Weather Service account

Written by the local Weather Service office after its damage survey.

The storm system that day

A powerful supercell thunderstorm produced six tornados from eastern McPherson county and across northern Brown county during the evening hours of June 23rd. The first weak tornado (F0) touched down briefly 6.4 miles northeast of Leola and resulted in no damage. The second tornado (F1) touched down 8.5 miles northeast of Leola and crossed over into Brown county where it dissipated 9 miles northwest of Barnard. This tornado brought down many trees and a barn and caused damage to the siding and the roof of a farmhouse in McPherson county and caused no damage in Brown county. A third weak satellite tornado (F0) occurred following the dissipation of the second tornado and resulted in no damage. A fourth strong tornado (F3) developed 6 miles west of Barnard and moved east and dissipated 3 miles southeast of Barnard. This tornado brought down some high power lines along with a support tower and tossed a pickup truck 100 yards into a group of trees. The pickup truck was totaled. The tornado caused extensive damage to two farmhouses, several farm buildings, and farm equipment. One farmhouse lost its garage and most of its roof with many trees completely snapped off down low and debarked. The fifth tornado developed 5 miles southeast of Barnard and became a violent tornado (F4). This tornado caused damage to one farmhouse, several outbuildings, trees, and equipment as it moved northeast and strengthened. The tornado then completely demolished two unoccupied homes, several outbuildings, many trees, along with destroying or damaging some farm equipment before dissipating 7.6 miles northeast of Barnard. Also, a sixth weak satellite tornado (F0) occurred with this violent tornado and caused no damage. This was the first F4 tornado recorded in Brown county and one of few recorded in South Dakota. The total estimated property loss exceeded a million dollars.

NOAA NCEI Storm Events Database.

Counties on its path

Storm Prediction Center severe weather database. Path drawn as a straight line from the recorded start to end point.