Tornadoes · United States · Ohio · 2006

F0 tornado, Hillsboro, Ohio, May 10, 2006

This F0 tornado ran 0.5 miles across Highland County on May 10, 2006, touching down at 6:20 PM EDT and reaching 30 yards wide. It killed nobody, and did $30,000 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 mphthis tornado

    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 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
F0
Date
May 10, 2006
Touchdown
6:20 PM EDT (22:20 UTC)
Path length
0.5 miles (0.8 km)
Path width
30 yards (27 m)
Deaths
0
Injuries
0
Property damage
$30,000
County
Highland County
Touchdown point
39.200, -83.500
Lift-off point
39.200, -83.500
Record number
520

What the Weather Service recorded

A brief tornado moved along a half mile path just north of Rocky Fork Lake. A restaurant along North Shore Road sustained minor siding damage. A real estate office along North Beach Road had portions of its aluminum roof peeled back or completely ripped off. The most extensive damage occurred to a residence about a tenth of a mile to the north-northeast of the real estate office. The home sustained major roof damage, and had an enclosed patio on its front porch completed removed and strewn behind the home. The majority of the patio was deposited into a deck and above ground pool behind the house, causing additional damage. A few trees between six and twelve inches in diameter were snapped between the real estate office and the residence.

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.

Issued (UTC)ExpiredProductOffice
03:13 UTC07:48 UTCTornado WatchILN

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, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 20:01 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

10.3 hours before the tornado, 36 km from the path. May 10, 2006.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2006-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 22 joules per kilogram, CIN -133, lifted condensation level 699 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 2006-05-10The 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 28 square meters per square second, 0 to 6 km bulk shear 22 knots.1939587897Sfc1 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
22 J/kg
Mixed-layer CIN
-133 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
22 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

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

1.7 hours after it, 36 km from the path. May 11, 2006.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2006-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 97 joules per kilogram, CIN -2, lifted condensation level 579 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 00:00Z on 2006-05-11The 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 143 square meters per square second, 0 to 6 km bulk shear 48 knots.1939587897Sfc1 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
97 J/kg
Mixed-layer CIN
-2 J/kg
Surface CAPE
176 J/kg
Mixed-layer LCL
579 m above ground
0-6 km bulk shear
48 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

The radar

The Cincinnati radar (KILN), 37 km away, was scanning. The volume nearest the touchdown began at 22:22 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.

What was reported nearby

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

Time (UTC)ReportWhereCountyRemark
22:20 UTCTORNADO6 Ese HillsboroHighland, OHF0 TORNADO JUST NORTH OF ROCKY FORK LAKE. DAMAGE WAS SCATTERED OVER A HALF MILE PATH FROM THE NORTH SIDE OF NORTH SHORE ROAD NORTHEAST TO NORTH BEACH ROAD. TWO STRUCTURES ALONG NORTH BEACH ROAD SUSTAINED HEAVY DAMAGE. TO

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

This ground now

The live radar over the trackEvery 2006 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are

The other tornadoes of May 10, 2006

19 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 101:40 AM CDTF1Okmulgee, OK0.575$70,000
May 1010:03 AM CDTF0Dallas, AR3.525
May 103:40 PM EDTF0Kalamazoo, MI0.120
May 102:44 PM CDTF1Marengo, AL2.6150$20,000
May 104:27 PM CDTF2Catahoula Parish, LA8.0250$250,000
May 104:35 PM CDTF0Victoria, TX0.575
May 104:35 PM CDTF0Tensas Parish, LA2.050$60,000
May 104:59 PM CDTF0Fort Bend, TX0.220$2,000
May 105:03 PM CDTF0Adams, LA to MS5.050
May 105:08 PM CDTF0Vanderburgh, IN5.275
May 105:40 PM CDTF0White, IL2.550
May 105:49 PM CDTF2Jefferson, MS7.0440$120,000
May 105:58 PM CDTF0Posey, IN2.560
May 106:08 PM CDTF0Warrick, IN0.250$2,000
May 106:08 PM CDTF0Clarke, AL0.130$10,000
May 106:17 PM CDTF0Warrick, IN0.250$1,000
May 106:22 PM CDTF0Gibson, IN2.750
May 106:34 PM CDTF0Kenedy, TX0.120
May 106:49 PM CDTF1Dubois, IN1.4100$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.