EF1 tornado, Crandall to Georgetown, Indiana, April 2, 2024

1. EF065 to 85 mph

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. EF186 to 110 mphthis tornado

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. EF2111 to 135 mph

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. EF3136 to 165 mph

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. EF4166 to 200 mph

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. EF5over 200 mph

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unrated

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Rating

EF1

Date

April 2, 2024

Touchdown

1:09 PM EDT (17:09 UTC)

Lifted

1:15 PM EDT (17:15 UTC)

On the ground

6 minutes

Path length

3.2 miles (5.1 km)

Path width

30 yards (27 m)

Deaths

0

Injuries

0

Counties

Harrison and Floyd counties

Touchdown point

38.270, -86.022

Lift-off point

38.290, -85.969

Record number

2404021109-01

50 damage points were recorded along this path by NWS LMK, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 95 mph.

• Hot tub cover blew SSW into deck railing.
• Threw a couple hundred pound umbrella base full of sand.
• Patio chair in the woods that was near pool.
• Roof material on edge of field.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

As a surface low cut across Missouri and Illinois, its eastward stretching warm front moved north across central Indiana while its cold front moved east towards the Lower Ohio Valley. This placed southern Indiana in the warm sector, where 3 separate lines of convection moved through during the day. The first line of storms generating from an early morning outflow boundary dropped southeast through the area. This produced some isolated wind damage which caused one person to get injured in Dubois County. The second line, moving west to east, ripped the roof off a fire house in Crawford County before producing a tornado near Georgetown. The third line, just ahead of the cold front, moved through during the evening hours. This line knocked trees down in Crawford County before producing a tornado along Interstate 265 in Clark County that crossed the Ohio River into Kentucky. A total of ten injuries were reported from the Indiana Department of Homeland Security.

The National Weather Service in Louisville conducted a damage assessment survey of a tornado that started at a property off of Hidden Springs Drive in far eastern Harrison County, Indiana and ended near Watts Road, just south of Georgetown, in Floyd County. Video clearly showed the tornado touching down multiple times. ||The tornado initially touched down and damaged a house off of Hidden Springs Drive. Much of the landscaping around the house wasn't disturbed. An outdoor hot tub on the northern end of the west side of the house had its heavy cover broke and thrown to the |southwest. The southwest side of this well constructed house had a section of its roof decking torn off and thrown which can be seen in the video. Wind speeds were estimated at 95 mph based on this damage. In one area of the house, the damage penetrated the ceiling. In other parts, the ceiling has been lifted away from the walls. Much of the soffit around the house has been sucked in or blown out. Some insulation from the attic is stuck to the east side of the house with additional amounts on the south facing exposed surfaces like door jambs and light fixtures. This is evidence of cyclonic flow. A patio chair that was sitting behind the house was found approximately 133 yards away in the woods. ||Approximately 100 yards east of the house, a few mature trees have been snapped on the edge of the woods. Farther in the woods, roofing debris was found on the ground and in trees as far 380 yards from where it came. The main section of roof that was |thrown, and can been seen on video, wasn't located. Many trees were freshly damaged or uprooted in the woods, but many of those were already dead. ||The video showed the tornado strengthening and weakening with a condensation funnel barely visible at times. It showed inflow being pulled into the tornado which was strong enough to bring down compromised trees. The tornado can also be seen dropping and lifting very small vortices as it approached Georgetown. Minor tree damage was found off of Georges Hill Road and west of Georgetown County Line Road before the tornado cross into Floyd County.

The National Weather Service in Louisville conducted a damage assessment survey of a tornado that started at a property off of Hidden Springs Drive in far eastern Harrison County, Indiana and ended near Watts Road, just south of Georgetown, in Floyd County. Video clearly showed the tornado touching down multiple times. In Harrison County the tornado was rated EF1, but in Floyd County it was rated EF0. ||As the tornado crossed Georgetown County Line Road into Floyd County, there was an uptick in how widespread the damage was, and the damage was slightly more impressive with a few large branches being snapped.||Between Old Lanesville Road and Georgetown Lanesville Road, scattered tree damage continued with a large tree being uprooted. Several compromised trees were brought down too. An eyewitness that was on Georgetown Lanesville Road during the storm said she saw a finger of a tornado touch down at a house on that road before lifting. She didn't see the tornado touch down again. ||The last of the damage was found off of Watts Road. A house just west of the road had damage to its gutter covers. Just east of the road, minor tree damage was observed.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down. One was issued for the county at another hour that day.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The Storm Prediction Center had this point in a Moderate Risk, with a 0.15 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 16:22 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

The Louisville radar (KLVX), 34 km away, was scanning. The volume nearest the touchdown began at 17:06 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

Local storm reports within 60 km of the path, in the three hours either side.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

The live radar over the trackEvery 2024 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

68 more were confirmed in the United States that day.

All 69 of them

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.