Tornadoes · United States · Ohio · 2000

F2 tornado, Monroeville to Milan, Ohio, September 20, 2000

From Monroeville to Milan, this F2 tornado ran 2.5 miles across Huron and Erie counties on September 20, 2000, touching down at 8:05 PM EDT and reaching 100 yards wide. It killed nobody and injured 1, and did $420,000 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 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
September 20, 2000
Touchdown
8:05 PM EDT (00:05 UTC)
Path length
2.5 miles (4.0 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
1
Property damage
$420,000
Counties
Huron and Erie counties
Touchdown point
41.250, -82.700
Lift-off point
41.300, -82.620
Record number
1057

What the Weather Service recorded

A tornado touched down north of Monroeville along State Route 99 near Mead Road. The tornado traveled east for 2.5 miles along State Route 113 and dissipated in Erie County near the corner of Higbee and Livengood Roads. The tornado was not on the ground the entire length and had a damage path approximately 100 yards in width. A mobile home, small outbuilding, barn, garage and a camper were destroyed in Huron County. An adult male inside the mobile home was slightly injured. The damage path of the tornado was clearly visible through corn fields and debris from the destroyed buildings was strewn along the path and in some case thrown well outside the path. Ears of corn were found shucked, apparently by the tornado. Several hundred trees were downed along the damage path.

A tornado touched down north of Monroeville in Huron County and traveled east along State Route 113 into southern Erie County. The tornado dissipated near the corner of Higbee and Livengood Roads after destroying a farm house. The destroyed house was ripped from its foundation, moved 40 feet and knocked over. A second house and a small barn were also slightly damaged. The tornado traveled approximately one mile in Erie County and had a damage path about 100 yards wide. Debris from the homes was thrown well outside the damage path which was clearly visible through corn fields. Ears of corn were shucked, apparently by the tornado and some ears had many kernels removed. Several dozen trees were downed along the damage path.

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.

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 Moderate Risk. The outlook in force was issued at 19:35 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.

Detroit, MI (KDTX), 12:00Z

11.9 hours after it, 173 km from the path. September 21, 2000.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2000-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN -3, lifted condensation level 760 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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, Detroit, MI at 12:00Z on 2000-09-21The 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 64 square meters per square second, 0 to 6 km bulk shear 53 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
1 J/kg
Mixed-layer CIN
-3 J/kg
Surface CAPE
26 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
53 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
80 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

The radar

The Cleveland radar (KCLE), 69 km away, was scanning. The volume nearest the touchdown began at 00:06 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.

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 September 20, 2000

3 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
September 207:18 PM EDTF4Xenia tornado, OH9.05001100$15 million
September 208:31 PM EDTF2Delaware, OH21.01002$2.0 million
September 208:51 PM EDTF1Knox, OH10.070$150,000

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.