Tornadoes · United States · Missouri · 2006

F1 tornado, Benton, Missouri, February 16, 2006

This F1 tornado ran 0.5 miles across Scott County on February 16, 2006, touching down at 7:18 PM CST and reaching 225 yards wide. It killed nobody, and did $100,000 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
February 16, 2006
Touchdown
7:18 PM CST (01:18 UTC)
Path length
0.5 miles (0.8 km)
Path width
225 yards (206 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Scott County
Touchdown point
37.100, -89.550
Lift-off point
37.120, -89.550
Record number
59

What the Weather Service recorded

Several structures were damaged. A large shed was levelled. Partial roof damage occurred to another shed and a house. Several large trees were snapped or uprooted. Various objects were impaled into a house and a garage. Most of the damage occurred on Highway E. Peak winds were estimated near 110 MPH.

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.

The county was under a tornado watch, issued at 23:15 UTC and running to 03:25 UTC.

Issued (UTC)ExpiredProductOffice
17:00 UTC05:02 UTCWind AdvisoryPAH
23:15 UTC03:25 UTCTornado WatchPAH
01:24 UTC02:00 UTCSevere Thunderstorm WarningPAH

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 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 00:59 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.

Little Rock, AR (KLZK), 00:00Z

1.3 hours before the tornado, 256 km from the path. February 17, 2006.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2006-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 170 joules per kilogram, CIN -51, lifted condensation level 918 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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, Little Rock, AR at 00:00Z on 2006-02-17The 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 242 square meters per square second, 0 to 6 km bulk shear 67 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
170 J/kg
Mixed-layer CIN
-51 J/kg
Surface CAPE
122 J/kg
Mixed-layer LCL
918 m above ground
0-6 km bulk shear
67 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
255 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Little Rock, AR (KLZK), 12:00Z

10.7 hours after it, 256 km from the path. February 17, 2006.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2006-02-17Temperature 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 -114269, lifted condensation level 1075 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, Little Rock, AR at 12:00Z on 2006-02-17The 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 -283 square meters per square second, 0 to 6 km bulk shear 64 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
0 J/kg
Mixed-layer CIN
-114269 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
64 kt
0-1 km bulk shear
24 kt
0-1 km storm-relative helicity
-283 m²/s²
0-3 km storm-relative helicity
-59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
0.3 K/km

Open this sounding in Storm Lab

The surface observations

Cape Girardeau (CGI), 13 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
23:53 UTC6757200° 24 kt361008.8
00:53 UTC6558200° 22 kt321009.8-RA
01:20 UTC62.659270° 20 kt1011.2+RA BR
01:23 UTC60.857.2290° 25 kt351011.9+RA BR
01:33 UTC55.453.6310° 20 kt311012.9RA BR
01:36 UTC55.453.6320° 16 kt291012.9RA BR
01:53 UTC5350330° 17 kt251013.2-RA
02:23 UTC46.441310° 19 kt301014.9
02:33 UTC46.439.2310° 17 kt281016.3-RA
02:53 UTC4338300° 20 kt261017.3-RA

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

The radar

The Paducah radar (KPAH), 69 km away, was scanning. The volume nearest the touchdown began at 01:19 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
01:15 UTCTSTM WND DMGBentonScott, MOLOCATION WAS FROM INTERSECTION OF HIGHWAY 77 AND HIGHWAY E IN BENTON. DAMAGED EXTENDED 1.7 MILES NORTHEAST ALONG HIGHWAY E AND WAS APPROXIMATELY 0.5 MILES WIDE. WINDS ESTIMATED 80 MPH. END TIME 720 PM. MINOR TO MODERATE
01:18 UTCTORNADO 11 Ne BentonStoddard, MOTORNADO BEGAN 718 PM WITH END TIME 720 PM. MAXIMUM WIDTH 225 YRDS AND APPROXIMATELY 0.5 MILES LONG. SEVERAL STRUCTURES DAMAGED. LARGE SHED COMPLETELY LEVELED. PARTIAL ROOF DAMAGE. SEVERAL LARGE TREES SNAPPED OFF NEAR BAS
01:28 UTCTSTM WND DMGBentonScott, MONUMEROUS TREES DOWN. SOME BROKEN OFF HALF WAY UP. SOME UPROOTED. DAMAGE REPORTED TO ROOFS WITH SOME BLOWN OFF. SIDING DAMAGED TO SOME HOMES. DAMAGED AREA RESTRICTED TO A 2 1/2 BLOCK AREA IN COMMUNITY.
01:28 UTCTSTM WND DMGBentonScott, MOSEVERAL LARGE TREES DOWN WITH WIDE SPREAD POWER OUTAGES THROUGHOUT COMMUNITY.

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 MissouriEvery tornado in Missouri since 1950Warnings in force in Missouri nowThe forecast where you are

The other tornadoes of February 16, 2006

3 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
February 164:00 PM CSTF0Shannon, MO0.2100
February 164:35 PM CSTF1Iroquois, IL0.125$20,000
February 167:54 PM ESTF1Vigo, IN4.2100$1.5 million

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.