Tornadoes · United States · Ohio · 2001

F2 tornado, Chatham, Ohio, May 21, 2001

This F2 tornado ran 7.5 miles across Medina County on May 21, 2001, touching down at 5:25 PM EDT and reaching 80 yards wide. It killed nobody, and did $1.0 million 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 mph

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

  3. F2113 to 157 mphthis tornado

    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
F2
Date
May 21, 2001
Touchdown
5:25 PM EDT (21:25 UTC)
Path length
7.5 miles (12.1 km)
Path width
80 yards (73 m)
Deaths
0
Injuries
0
Property damage
$1.0 million
County
Medina County
Touchdown point
41.100, -82.020
Lift-off point
41.100, -82.020
Record number
774

What the Weather Service recorded

A tornado touched down along New London Eastern Road near Pawnee in southwestern Chatham Township. The tornado then traveled northeast for approximately 7.5 miles before dissipating along State Route 83 about three miles north of Chatham. The damage path was intermittent and approximately 250 feet in width. A new home was completely destroyed near the location of the initial touchdown. A truck nearby was thrown 500 feet by the tornado. A church and parsonage were damaged along Old Mill Road. The tornado then struck an alpaca farm along State Route 83 north of Chatham and destroyed three barns and damaged several other outbuildings. Several garages and a home were damaged elsewhere along the damage path. Over three hundred trees were knocked down and two cars destroyed.

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

The warnings

34 minutes of warning. NWS CLE issued a tornado warning for this county at 20:51 UTC, 34 minutes before the tornado touched down, in force until 21:30 UTC.

Issued (UTC)ExpiredProductOffice
20:51 UTC21:30 UTCTornado WarningCLE
21:43 UTC22:15 UTCTornado WarningCLE
23:21 UTC01:15 UTCFlash Flood WarningCLE

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 19:56 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.

Pittsburgh, PA (KPIT), 12:00Z

9.4 hours before the tornado, 179 km from the path. May 21, 2001.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2001-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -66623, lifted condensation level 693 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Pittsburgh, PA at 12:00Z on 2001-05-21The 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 210 square meters per square second, 0 to 6 km bulk shear 26 knots.1939Sfc1 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
0 J/kg
Mixed-layer CIN
-66623 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
21 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.6 K/km

Open this sounding in Storm Lab

Pittsburgh, PA (KPIT), 00:00Z

2.6 hours after it, 179 km from the path. May 22, 2001.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2001-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -80858, lifted condensation level 745 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Pittsburgh, PA at 00:00Z on 2001-05-22The 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 244 square meters per square second, 0 to 6 km bulk shear 44 knots.193958Sfc1 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
0 J/kg
Mixed-layer CIN
-80858 J/kg
Surface CAPE
7 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
44 kt
0-1 km bulk shear
28 kt
0-1 km storm-relative helicity
244 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 2001 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of May 21, 2001

25 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 211:23 PM EDTF0Oakland, MI1.0150$70,000
May 212:15 PM EDTF0Eaton, MI6.050$300,000
May 212:20 PM EDTF2Kalamazoo, MI1.0150$500,000
May 212:34 PM EDTF2Livingston, MI10.92003$3.0 million
May 212:35 PM EDTF0Kent, MI0.650$100,000
May 212:35 PM EDTF0Ottawa, MI0.150$50,000
May 212:50 PM EDTF0Barry, MI1.050$200,000
May 212:52 PM EDTF0Allegan, MI1.550$50,000
May 212:55 PM EDTF1Clinton, MI4.550$300,000
May 213:00 PM EDTF0Shiawassee, MI0.130
May 213:29 PM EDTF1Kent, MI0.350$200,000
May 213:30 PM EDTF0Ionia, MI1.050$100,000
May 213:40 PM EDTF0Kent, MI0.150$50,000
May 213:50 PM EDTF0Kent, MI0.150$70,000
May 214:20 PM EDTF1Gratiot, MI3.0401$150,000
May 214:40 PM EDTF0Gratiot, MI2.550$30,000
May 214:40 PM EDTF1Isabella, MI4.0401$150,000
May 215:02 PM EDTF0Genesee, MI7.3100$140,000
May 215:30 PM EDTF0Clare, MI0.130$10,000
May 216:05 PM EDTF0City of Suffolk, VA0.225$30,000
May 216:35 PM EDTF1Meigs, OH4.0200$400,000
May 217:43 PM EDTF1Stark, OH0.51001$450,000
May 218:10 PM EDTF0Wood, WV0.7100$180,000
May 219:15 PM CDTF1Hidalgo, TX0.175$30,000
May 219:25 PM CDTF1Hidalgo, TX0.275$70,000

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.