Tornadoes · United States · Ohio · 2006

F1 tornado, Beaverdam, Ohio, June 22, 2006

This F1 tornado ran 0.1 miles across Allen County on June 22, 2006, touching down at 3:18 PM EDT and reaching 50 yards wide. It killed nobody, and did $20,000 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
June 22, 2006
Touchdown
3:18 PM EDT (19:18 UTC)
Path length
0.1 miles (0.2 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$20,000
County
Allen County
Touchdown point
40.830, -83.920
Lift-off point
40.830, -83.920
Record number
677

What the Weather Service recorded

Brief touchdown near the intersection of U.S. route 30 and Pevee Rd. The roof of one home was destroyed, with another home sustaining significant roof damage. The tornado also resulted in crop damage in the area.

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

The warnings

26 minutes of warning. NWS IWX issued a tornado warning for this county at 18:52 UTC, 26 minutes before the tornado touched down, in force until 19:30 UTC.

The county was under a severe thunderstorm watch, issued at 17:20 UTC and running to 20:09 UTC.

Issued (UTC)ExpiredProductOffice
17:20 UTC20:09 UTCSevere Thunderstorm WatchIWX
18:52 UTC19:30 UTCTornado WarningIWX

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, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 15:48 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

7.3 hours before the tornado, 156 km from the path. June 22, 2006.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2006-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2364 joules per kilogram, CIN -34, lifted condensation level 898 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, Cncnati-Daytn, OH at 12:00Z on 2006-06-22The 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 84 square meters per square second, 0 to 6 km bulk shear 27 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
2364 J/kg
Mixed-layer CIN
-34 J/kg
Surface CAPE
1866 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
27 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.9
0-3 km lapse rate
5.3 K/km

Open this sounding in Storm Lab

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

4.7 hours after it, 156 km from the path. June 23, 2006.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2006-06-23Temperature 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 -81067, lifted condensation level 1831 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2006-06-23The 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 6 square meters per square second, 0 to 6 km bulk shear 22 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
-81067 J/kg
Surface CAPE
83 J/kg
Mixed-layer LCL
1831 m above ground
0-6 km bulk shear
22 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.6 K/km

Open this sounding in Storm Lab

The surface observations

Lima (AOH), 16 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
17:53 UTC8873230° 11 kt1017.9
18:51 UTC87.871.6240° 13 kt1016.3
18:53 UTC8871230° 12 kt1016.3

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

The radar

The Cincinnati radar (KILN), 157 km away, was scanning. The volume nearest the touchdown began at 19:17 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
18:45 UTCTSTM WND DMGVan WertVan Wert, OHSEVERAL TREE AND POWER LINES DOWN AND BARN WAS BLEW OVER.
18:47 UTCFUNNEL CLOUDVan WertVan Wert, OH
18:47 UTCFUNNEL CLOUDVan WertVan Wert, OH
18:58 UTCTORNADO4 Sw DelphosVan Wert, OHF0 DESTROYED A WELL BUILT SHED
19:05 UTCTSTM WND DMGKalidaPutnam, OHSEVERAL LARGE TREES DOWN.
19:15 UTCTSTM WND DMG1 E LimaAllen, OHSEVERAL AIRCRAFT DAMAGED TWO BUILDINGS DESTROYED AND 2/3 OF COUNTY WITHOUT POWER
19:15 UTCTSTM WND DMGLimaAllen, OHROOF OF MOTEL 6 COLLAPSED.
19:18 UTCTORNADO3 E BeaverdamAllen, OHF1 50 YARDS WIDE 200 YARDS LONG. DESTROYED ROOF ON ONE HOME AND DAMAGED ROOF ON OTHER HOME.
19:20 UTCTSTM WND DMGPandoraPutnam, OHTREES AND POWER LINES DOWN.
19:22 UTCTSTM WND DMGLimaAllen, OHTREES AND POWER LINES DOWN AND ROOF DAMAGE TO A SHOPPING CENTER.
19:23 UTCTORNADO3 E LimaAllen, OHLAW ENFORCEMENT REPORTED POSSIBLE TOUCH DOWN.
19:23 UTCTORNADO3 E LimaAllen, OHLAW ENFORCEMENT REPORTED POSSIBLE TOUCH DOWN.
19:34 UTCTSTM WND DMGAdaHardin, OHTREE LIMBS AND CHIMNEY DOWN
19:38 UTCTSTM WND DMGLimaAllen, OHROOF OF MOTEL 6 COLLAPSED.
19:43 UTCTSTM WND GST 60BellefontaineLogan, OH
19:45 UTCTSTM WND DMGArlingtonHancock, OHSEVERAL TREES AND MANY LARGE LIMBS DOWN.
19:45 UTCTSTM WND DMGDunkirkHardin, OHROOF TILES OFF GARAGE AT SR 81 AND US 68

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 June 22, 2006

22 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 228:13 AM CDTF0Tazewell, IL0.130
June 221:05 PM CDTF0Audrain, MO0.140
June 221:07 PM CDTF1Audrain, MO1.050
June 221:10 PM CDTF0Audrain, MO0.350
June 221:25 PM CDTF0Audrain, MO3.550
June 222:38 PM EDTF0Van Wert, OH0.125$20,000
June 222:43 PM EDTF1Van Wert, OH0.125$10,000
June 222:58 PM EDTF0Van Wert, OH0.125$10,000
June 223:00 PM EDTF0Mercer, OH0.230$20,000
June 222:15 PM CDTF0Pike, MO0.350
June 221:30 PM MDTF0Douglas, CO0.150
June 223:30 PM EDTF0Auglaize, OH0.120$10,000
June 221:32 PM MDTF1Elbert, CO0.1100
June 222:45 PM MDTF0Elbert, CO0.150
June 223:20 PM MDTF0Elbert, CO0.150
June 225:30 PM EDTF2Holmes, OH6.0100$750,000
June 225:45 PM EDTF1Stark, OH4.075$1.5 million
June 225:47 PM EDTF1Tuscarawas, OH3.050$50,000
June 225:58 PM EDTF1Stark, OH3.550$500,000
June 225:28 PM MDTF0Prowers, CO1.0100
June 228:00 PM CDTF0Seward, KS0.320
June 228:04 PM CDTF0Stafford, KS0.320

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.