Tornadoes · United States · Minnesota · 1983

F1 tornado, McLeod County, Minnesota, June 13, 1983

This F1 tornado ran 1.0 miles across McLeod County on June 13, 1983, touching down at 9:00 PM CDT and reaching 100 yards wide. It killed nobody, and did $5,000 to $50,000 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 13, 1983
Touchdown
9:00 PM CDT (02:00 UTC)
Path length
1.0 miles (1.6 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$5,000 to $50,000
County
McLeod County
Touchdown point
44.730, -94.420
Record number
539

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.

Minneapolis, MN (KSTC), 00:00Z

2.0 hours before the tornado, 66 km from the path. June 14, 1983.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1983-06-14Temperature 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 0, lifted condensation level NaN 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, Minneapolis, MN at 00:00Z on 1983-06-14The 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 243 square meters per square second, 0 to 6 km bulk shear 51 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
0 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
1027 J/kg
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
51 kt
0-1 km bulk shear
27 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
342 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.8
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Minneapolis, MN (KSTC), 12:00Z

10.0 hours after it, 66 km from the path. June 14, 1983.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 1983-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 20 joules per kilogram, CIN -9, lifted condensation level 605 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, Minneapolis, MN at 12:00Z on 1983-06-14The 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 43 square meters per square second, 0 to 6 km bulk shear 60 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
20 J/kg
Mixed-layer CIN
-9 J/kg
Surface CAPE
101 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
60 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
5.3 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1983 tornado in MinnesotaEvery tornado in Minnesota since 1950Warnings in force in Minnesota nowThe forecast where you are

The other tornadoes of June 13, 1983

27 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 1310:02 AM MDTF0Douglas, CO0.117under $50
June 132:00 PM CDTF1Stanton, NE5.020$50,000 to $500,000
June 132:00 PM CDTF1Colfax, NE0.220$5,000 to $50,000
June 133:50 PM CDTF0Ochiltree, TX0.380under $50
June 134:03 PM CDTF0Beaver, OK0.110under $50
June 134:19 PM CDTF0Roger Mills, OK0.110under $50
June 134:30 PM CDTF0Texas, OK0.110under $50
June 134:56 PM CDTF0Beckham, OK0.110under $50
June 135:15 PM CDTF0Harper, OK0.110under $50
June 135:30 PM CDTF1Dickinson, IA1.0301$50,000 to $500,000
June 135:50 PM CDTF0Emmet, IA0.110under $50
June 137:00 PM CDTF0Washita, OK0.110under $50
June 137:15 PM CDTF0Tillman, OK12.040$50 to $500
June 137:30 PM CDTF0Caddo, OK0.110$500 to $5,000
June 137:45 PM CDTF0Caddo, OK0.110under $50
June 138:25 PM CDTF0Brown, KS0.110$50 to $500
June 138:27 PM CDTF0Martin, MN0.350$5,000 to $50,000
June 138:30 PM CDTF0Sibley, MN1.050$5,000 to $50,000
June 138:40 PM CDTF1Comanche, OK0.110$5,000 to $50,000
June 138:45 PM CDTF0Brown, MN3.033$5,000 to $50,000
June 139:00 PM CDTF0Hennepin, MN3.050$5,000 to $50,000
June 139:00 PM CDTF0Blue Earth, MN0.117$5,000 to $50,000
June 139:00 PM CDTF0Sherburne, MN0.8300$5,000 to $50,000
June 139:02 PM CDTF0Sibley, MN0.150$5,000 to $50,000
June 139:05 PM CDTF2McLeod, MN1.0200$500,000 to $5 million
June 139:15 PM CDTF0Carver, MN0.250under $50
June 139:31 PM CDTF0Waseca, MN0.550$5,000 to $50,000

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.