Tornadoes · United States · Missouri · 1987

F0 tornado, Boone County, Missouri, June 2, 1987

This F0 tornado ran 1.0 miles across Boone County on June 2, 1987, touching down at 2:56 PM CDT and reaching 20 yards wide. It killed nobody and injured 1, and did $50 to $500 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
June 2, 1987
Touchdown
2:56 PM CDT (19:56 UTC)
Path length
1.0 miles (1.6 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
1
Property damage
$50 to $500
County
Boone County
Touchdown point
38.730, -92.320
Record number
222

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
19:12 UTC20:00 UTCSevere Thunderstorm WarningEAX
20:01 UTC20:30 UTCTornado WarningEAX

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 General Thunderstorms Risk. The outlook in force was issued at 06:40 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.

Springfield, MO (KUMN), 12:00Z

7.9 hours before the tornado, 241 km from the path. June 2, 1987.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1987-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1129 joules per kilogram, CIN -8, lifted condensation level 628 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, Springfield, MO at 12:00Z on 1987-06-02The 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 21 square meters per square second, 0 to 6 km bulk shear 26 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
1129 J/kg
Mixed-layer CIN
-8 J/kg
Surface CAPE
337 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
17 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

Springfield, MO (KUMN), 00:00Z

4.1 hours after it, 241 km from the path. June 3, 1987.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 1987-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2153 joules per kilogram, CIN -1, lifted condensation level 1170 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 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, Springfield, MO at 00:00Z on 1987-06-03The 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 45 square meters per square second, 0 to 6 km bulk shear 30 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
2153 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
3187 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
30 kt
0-1 km bulk shear
14 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9
0-3 km lapse rate
7.8 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1987 tornado in MissouriEvery tornado in Missouri since 1950Warnings in force in Missouri nowThe forecast where you are

The other tornadoes of June 2, 1987

17 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 21:10 PM EDTF1Monroe, MI1.030$500 to $5,000
June 21:47 PM CDTF0Coryell, TX0.210
June 22:00 PM CDTF0Mason, IL0.110
June 22:12 PM CDTF2Champaign, IL0.110$5,000 to $50,000
June 22:13 PM CDTF0McLean, IL0.110
June 22:20 PM CDTF0Bosque, TX0.310
June 22:30 PM CDTF0Tazewell, IL0.110
June 22:40 PM CDTF1Adams, IL1.540$500 to $5,000
June 22:50 PM CDTF1Douglas, IL0.750$50,000 to $500,000
June 22:56 PM ESTF0Clinton, IN2.010
June 23:20 PM CDTF2Lipscomb, TX6.01,600$5,000 to $50,000
June 24:55 PM EDTF0Anderson, KY0.210$500 to $5,000
June 24:15 PM CDTF2Lipscomb, TX7.51,600$5,000 to $50,000
June 25:00 PM ESTF0Hendricks, IN0.510
June 26:04 PM CDTF0Nolan, TX1.080
June 27:40 PM CDTF1Potter, TX3.0100
June 28:20 PM CDTF0Potter, TX0.140

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.