Tornadoes · United States · Illinois · 1980

F2 tornado, Moultrie County, Illinois, April 8, 1980

This F2 tornado ran 0.5 miles across Moultrie County on April 8, 1980, touching down at 12:50 AM CST and reaching 60 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 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mphthis tornado

    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
F2
Date
April 8, 1980
Touchdown
12:50 AM CST (06:50 UTC)
Path length
0.5 miles (0.8 km)
Path width
60 yards (55 m)
Deaths
0
Injuries
0
Property damage
$5,000 to $50,000
County
Moultrie County
Touchdown point
39.630, -88.720
Record number
105

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.

Salem-Leckrone, IL (KSLO), 00:00Z

6.8 hours before the tornado, 110 km from the path. April 8, 1980.

Skew-T log-pSkew-T log-p diagram, Salem-Leckrone, IL at 00:00Z on 1980-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 625 joules per kilogram, CIN -49, lifted condensation level 1118 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, Salem-Leckrone, IL at 00:00Z on 1980-04-08The 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 53 square meters per square second, 0 to 6 km bulk shear 44 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
625 J/kg
Mixed-layer CIN
-49 J/kg
Surface CAPE
805 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
44 kt
0-1 km bulk shear
7 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6
0-3 km lapse rate
6.6 K/km

Open this sounding in Storm Lab

Salem-Leckrone, IL (KSLO), 12:00Z

5.2 hours after it, 110 km from the path. April 8, 1980.

Skew-T log-pSkew-T log-p diagram, Salem-Leckrone, IL at 12:00Z on 1980-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 102 joules per kilogram, CIN -129, lifted condensation level 884 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, Salem-Leckrone, IL at 12:00Z on 1980-04-08The 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 151 square meters per square second, 0 to 6 km bulk shear 76 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
102 J/kg
Mixed-layer CIN
-129 J/kg
Surface CAPE
7 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
76 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1980 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of April 8, 1980

30 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 812:45 AM CSTF2Tate, MS0.7100$5,000 to $50,000
April 81:21 AM CSTF0McLean, IL0.560under $50
April 82:15 AM CSTF2Alcorn, MS0.5200$50,000 to $500,000
April 85:40 AM CSTF1Lincoln, MS0.350$50,000 to $500,000
April 810:20 AM CSTF0Marshall, TN0.150$50 to $500
April 810:46 AM CSTF1Rutherford, TN0.550$5,000 to $50,000
April 81:50 PM ESTF0Clarke, GA0.110$500 to $5,000
April 82:20 PM ESTF1Switzerland, IN0.560$500 to $5,000
April 82:45 PM ESTF2Boone, KY1.51004$5,000 to $50,000
April 82:50 PM ESTF1Randolph, IN0.560$500 to $5,000
April 82:50 PM ESTF1LaGrange, IN0.560$500 to $5,000
April 82:50 PM ESTF2Jay, IN7.987$50,000 to $500,000
April 83:00 PM ESTF0Wayne, IN1.060$50 to $500
April 83:10 PM ESTF2McCreary, KY11.220029$50,000 to $500,000
April 83:10 PM ESTF1Preble, OH1.5100$50,000 to $500,000
April 83:15 PM ESTF1Laurel, KY2.760$50,000 to $500,000
April 83:15 PM ESTF0Hancock, IN1.060$500 to $5,000
April 83:20 PM ESTF2Butler, OH2.010010$500,000 to $5 million
April 83:25 PM ESTF2Darke, OH1.0100$500,000 to $5 million
April 82:40 PM CSTF1Bracken, KY to OH5.11002$50,000 to $500,000
April 84:00 PM ESTF1Allen, OH1.01001$50,000 to $500,000
April 84:00 PM ESTF1Allen, OH0.577$50,000 to $500,000
April 84:20 PM ESTF1Putnam, OH1.077$50,000 to $500,000
April 84:40 PM ESTF2Wood, OH1.51007$50,000 to $500,000
April 84:55 PM ESTF2Lucas, OH0.81272$500,000 to $5 million
April 84:55 PM ESTF1Scioto, OH2.01001$50,000 to $500,000
April 85:15 PM ESTF1Wayne, MI0.110$50,000 to $500,000
April 85:31 PM ESTF1Bradley, TN5.250$5,000 to $50,000
April 86:20 PM ESTF1Effingham, GA4.230$50,000 to $500,000
April 88:50 PM ESTF1Paulding, GA4.3301$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.