Tornadoes · United States · Ohio · 2000

F1 tornado, Junction City, Ohio, May 23, 2000

This F1 tornado ran 2.0 miles across Perry County on May 23, 2000, touching down at 6:10 PM EDT and reaching 150 yards wide. It killed nobody, and did $180,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

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

  2. F173 to 112 mphthis tornado

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

  3. F2113 to 157 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. F3158 to 206 mph

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

  5. F4207 to 260 mph

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

  6. F5261 to 318 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.

The record

Rating
F1
Date
May 23, 2000
Touchdown
6:10 PM EDT (22:10 UTC)
Path length
2.0 miles (3.2 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
0
Property damage
$180,000
County
Perry County
Touchdown point
39.720, -82.350
Lift-off point
39.720, -82.320
Record number
785

What the Weather Service recorded

A tornado touched down on Jackson Township Road 371 and moved east, along County Route 9, known as Pen Road. A slate roof of a house was ripped off and a modular home was shifted several inches off its concrete block foundation. Further east, the roof to a trailer was ripped off. On Palomino Road, the tornado destroyed a barn and garage.

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

The warnings

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.

Issued (UTC)ExpiredProductOffice
22:11 UTC22:25 UTCTornado WarningRLX
22:20 UTC22:40 UTCTornado WarningRLX
22:35 UTC23:05 UTCTornado WarningRLX
23:26 UTC00:00 UTCSevere Thunderstorm WarningRLX
01:06 UTC03:05 UTCFlash Flood WarningRLX
02:36 UTC05:00 UTCFlash Flood WarningRLX

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 forecast that day

The Storm Prediction Center had this point in a Slight Risk. The outlook in force was issued at 19:53 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 air that afternoon

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.

Cncnati-Daytn, OH (KILN), 12:00Z

10.2 hours before the tornado, 130 km from the path. May 23, 2000.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2000-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 94 joules per kilogram, CIN -72, lifted condensation level 930 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2000-05-23The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 234 square meters per square second, 0 to 6 km bulk shear 40 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
94 J/kg
Mixed-layer CIN
-72 J/kg
Surface CAPE
188 J/kg
Mixed-layer LCL
930 m above ground
0-6 km bulk shear
40 kt
0-1 km bulk shear
30 kt
0-1 km storm-relative helicity
234 m²/s²
0-3 km storm-relative helicity
327 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3
0-3 km lapse rate
6.0 K/km

Open this sounding in Storm Lab

Cncnati-Daytn, OH (KILN), 00:00Z

1.8 hours after it, 130 km from the path. May 24, 2000.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2000-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1168 joules per kilogram, CIN -2, lifted condensation level 867 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2000-05-24The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 253 square meters per square second, 0 to 6 km bulk shear 42 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
1168 J/kg
Mixed-layer CIN
-2 J/kg
Surface CAPE
1907 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
42 kt
0-1 km bulk shear
24 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
1.8
Supercell composite
10.2
0-3 km lapse rate
7.1 K/km

Open this sounding in Storm Lab

The surface observations

Lancaster (LHQ), 28 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
20:14 UTC71.666.2190° 5 kt1000.3
20:32 UTC73.466.2200° 8 kt1000
20:53 UTC7067210° 7 kt1000-RA BR
22:53 UTC7067250° 6 kt999.7-RA
23:31 UTC66.262.6300° 15 kt251001+RA BR
23:33 UTC66.262.6290° 20 kt281001+RA BR
23:40 UTC64.462.6340° 13 kt281000.7+RA BR
23:53 UTC6562300° 10 kt221001-RA BR

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Cincinnati radar (KILN), 132 km away, was scanning. The volume nearest the touchdown began at 22:10 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.

This ground now

The live radar over the trackEvery 2000 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of May 23, 2000

16 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 232:00 PM CDTF3Grayson, KY6.010016$50 million
May 232:25 PM CDTF0Hart, KY0.120
May 234:40 PM EDTF2Harrison, OH3.0200$100,000
May 235:05 PM EDTF1Knox, TN0.5401
May 235:06 PM EDTF0Jefferson, OH2.050$10,000
May 235:20 PM EDTF0Taylor, KY0.120$10,000
May 236:00 PM EDTF0Fairfield, OH0.5130$50,000
May 236:30 PM EDTF2Marion, OH3.0200$200,000
May 236:15 PM CDTF0Calloway, KY0.120
May 236:30 PM CDTF1Calloway, KY1.5100$50,000
May 237:43 PM EDTF1Tyler, WV1.070$90,000
May 237:04 PM CDTF0Calloway, KY0.220$4,000
May 238:15 PM EDTF1Washington, OH1.0100$150,000
May 237:25 PM CDTF1Stewart, TN0.220
May 237:48 PM CDTF0Bollinger, MO0.320
May 239:04 PM CDTF0Scott, MO0.230

What this means

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.

Sources

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