Tornadoes · United States · South Carolina · 2006

F0 tornado, Bamberg, South Carolina, May 7, 2006

This F0 tornado ran 1.0 miles across Bamberg County on May 7, 2006, touching down at 1:35 PM EDT and reaching 60 yards wide. It killed nobody.

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 7, 2006
Touchdown
1:35 PM EDT (17:35 UTC)
Path length
1.0 miles (1.6 km)
Path width
60 yards (55 m)
Deaths
0
Injuries
0
County
Bamberg County
Touchdown point
33.230, -80.950
Lift-off point
33.220, -80.930
Record number
489

What the Weather Service recorded

Storm survey found trees and powerlines down south of Midway off hwy 78. Utility company was present repairing powerlines.

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

The warnings

22 minutes of warning. NWS CAE issued a tornado warning for this county at 17:13 UTC, 22 minutes before the tornado touched down, in force until 17:45 UTC.

Issued (UTC)ExpiredProductOffice
17:13 UTC17:45 UTCTornado WarningCAE

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 16:31 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.

Charleston AFB, SC (KCHS), 00:00Z

6.4 hours after it, 95 km from the path. May 8, 2006.

Skew-T log-pSkew-T log-p diagram, Charleston AFB, SC at 00:00Z on 2006-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 403 joules per kilogram, CIN -71, lifted condensation level 737 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, Charleston AFB, SC at 00:00Z on 2006-05-08The 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 61 square meters per square second, 0 to 6 km bulk shear 49 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
403 J/kg
Mixed-layer CIN
-71 J/kg
Surface CAPE
222 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
49 kt
0-1 km bulk shear
16 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

The radar

The Charleston,SC radar (KCLX), 64 km away, was scanning. The volume nearest the touchdown began at 17:32 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
16:45 UTCHAIL 0.75MartinAllendale, SCPENNY HAIL REPORTED IN MARTIN.
16:55 UTCHAIL 0.511 Wnw AllendaleAllendale, SC
16:58 UTCHAIL 0.88AppletonAllendale, SCNICKEL HAIL REPORTED BY LAW ENFORCEMENT IN APPLETON.
17:10 UTCHAIL 0.753 W AllendaleAllendale, SC
17:15 UTCTSTM WND DMG1 N AllendaleAllendale, SCLAW ENFORCEMENT REPORTED POWER LINES DOWN OFF HIGHWAY 301 N.
17:20 UTCHAIL 1.75SeiglingAllendale, SCLAW ENFORCEMENT ENROUTE TO CLEAR TREES DOWNED ON HWY ENCOUNTERED GOLF BALL HAIL.
17:23 UTCTORNADO 05 Ese OrangeburgOrangeburg, SCAN F0 TOUCHED DOWN SEVERAL TIMES ALONG A PATH FROM 5 MILES SOUTHEAST OF ORANGEBURG TO 2 MILES SOUTHWEST OF SANTEE. THE TWISTER TRAVELED ALONG HIGHWAY 301 AND TOOK TREES DOWN NEAR 301 AND HWYS 793, 167, 178, AND 15. ...DI
17:23 UTCTORNADO5 Sse OrangeburgOrangeburg, SCAN F0 TOUCHED DOWN SEVERAL TIMES ALONG A PATH FROM 5 MILES SOUTHEAST OF ORANGEBURG TO 2 MILES SOUTHWEST OF SANTEE. THE TWISTER TRAVELED ALONG HIGHWAY 301 AND TOOK TREES DOWN NEAR 301 AND HWYS 793, 167, 178, AND 15.
17:27 UTCTSTM WND DMGSycamoreAllendale, SCLAW ENFORCEMENT REPORTED 2 LARGE TREES DOWN OFF CARTER RD.
17:30 UTCTSTM WND DMG15 W OrangeburgOrangeburg, SCROOF BLOWN OFF OF HORSE BARN NEAR SHILLINGS BRIDGE ROAD
17:35 UTCTSTM WND DMG7 Se BambergBamberg, SCEDISTO ELECTRIC COOP REPORTED SEVERAL TREES AND POWER LINES DOWN SOUTH OF MIDWAY OFF US HIGHWAY 78. TIME ESTIMATED.
17:35 UTCTORNADO7 Se BambergBamberg, SCAN F0 TOUCHED DOWN JUST SOUTH OF MIDWAY OFF OF SC78 AND TOOK DOWN SOME TREES AND POWERLINES.
17:37 UTCTSTM WND DMGFairfaxAllendale, SCLAW ENFORCEMENT REPORTED 2 LARGE TREES DOWN IN FAIRFAX.
17:40 UTCTSTM WND DMGFairfaxAllendale, SC1 LARGE TREE REPORTED DOWN AT THE INTERSECTION OF JENNY RD AND MT. PLEASANT RD.
17:47 UTCHAIL 0.754 Nw EstillHampton, SC
17:56 UTCHAIL 1BranchvilleOrangeburg, SCPUBLIC REPORT OF QUARTER SIZED HAIL AT 156 PM
18:00 UTCHAIL 0.88BranchvilleOrangeburg, SCPUBLIC REPORTED DIME TO NICKEL SIZED HAIL
18:00 UTCTSTM WND DMGFairfaxAllendale, SCPOWER LINES DOWN...TREES DOWN AT 7TH AND BAY SHORE
18:03 UTCTSTM WND DMGCummingsHampton, SCTREES DOWN. TIME ASCERTAINED FROM RADAR.
18:03 UTCTSTM WND DMGHamptonHampton, SCSEVERAL TREES DOWN OVER ROADS IN THE CITY OF HAMPTON. TREES ALSO DOWN OVER HIGHWAY 278...ABOUT A MILE OUTSIDE OF HAMPTON.
18:25 UTCTSTM WND DMG3 W WalterboroColleton, SC50 TO 60 MPH WIND GUSTS NEAR WALTERBORO
18:35 UTCHAIL 1.755 Nw WalterboroColleton, SCGOLFBALL HAIL OFF HIGHWAY 64 NEAR MT. CARMEL ROAD
18:50 UTCTSTM WND DMGCanadysColleton, SCTREES DOWN ALONG HIGHWAY 61

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 South CarolinaEvery tornado in South Carolina since 1950Warnings in force in South Carolina nowThe forecast where you are

The other tornadoes of May 7, 2006

10 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 71:23 PM EDTF0Orangeburg, SC12.060
May 72:00 PM EDTF0Berkeley, SC0.130$10,000
May 73:12 PM MDTF0Wallace, KS0.315
May 73:22 PM MDTF0Wallace, KS0.625
May 76:53 PM CDTF0Finney, KS1.0150
May 78:40 PM CDTF1Haskell, KS3.5150
May 78:51 PM CDTF1Haskell, KS1.075
May 710:17 PM CDTF0Polk, MN0.225
May 710:40 PM CDTF0Cass, ND0.225
May 711:40 PM CDTF1Polk, MN0.550

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.