EF0 tornado, Prospect, Indiana, January 30, 2013

1. EF065 to 85 mphthis tornado

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

2. EF186 to 110 mph

   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

EF0

Date

January 30, 2013

Touchdown

1:47 AM EST (06:47 UTC)

Lifted

1:48 AM EST (06:48 UTC)

On the ground

1 minutes

Path length

0.4 miles (0.6 km)

Path width

75 yards (69 m)

Deaths

0

Injuries

0

Property damage

$25,000

County

Orange County

Touchdown point

38.612, -86.610

Lift-off point

38.613, -86.603

Record number

1301300047-01

16 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 90 mph.

• Cherry, hard maple, and red oak all moving north and northeast
• Cherry, hard maple, and red oak all moving north, northeast, and east
• Cherry, hard maple, and red oak all moving north, northeast, and east
• Large sticks thrown into home and stuck in home

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

During the evening hours on the 29th of January, low pressure across the southern plains began to intensify and move towards the western Great Lakes. A squall line developed during the evening hours and strengthened after midnight as it moved into western Kentucky and southern Illinois. This line, fueled by unseasonably mild temperatures, dewpoints around 60, and an intense low level jet of 80kt at 850mb, spawned one of the largest January tornado outbreaks on record across the Lower Ohio Valley. Two tornadoes were surveyed across southern Indiana. In addition, strong synoptic southerly winds right ahead and along this line produced localized wind damage.

An EF-1 tornado damaged portions of a forest and a residence located just over 3 miles north of West Baden Springs, Indiana. Maximum wind speeds estimated around 85 to 95 mph accompanied this twister, which had a width of 75 yards and a length of 400 yards. EF-1 damage was surveyed at one home, where the roof was badly damaged. The porch of this home was thrown several feet. Several small twigs were driven through this resident's siding.

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.

The county was under a tornado watch, issued at 03:35 UTC and running to 09:51 UTC.

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 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), 91 km away, was scanning. The volume nearest the touchdown began at 06:48 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 2013 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

44 more were confirmed in the United States that day.

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.