Tornadoes · United States · Illinois · 1994

F0 tornado, Beecher To to Beecher, Illinois, April 26, 1994

From Beecher To to Beecher, this F0 tornado ran 3.0 miles across Will County on April 26, 1994, touching down at 9:40 PM CDT and reaching 20 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 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
April 26, 1994
Touchdown
9:40 PM CDT (02:40 UTC)
Path length
3.0 miles (4.8 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
Property damage
$5,000 to $50,000
County
Will County
Touchdown point
41.320, -87.580
Lift-off point
41.350, -87.520
Record number
240

What the Weather Service recorded

Two small tornadoes touched down producing parallel paths about 0.50 to 1 mile apart. The first tornado touched down southeast of Beecher damaging a house roof, grain bins and other farm buildings. A few trees and limbs were also damaged and one power pole was pushed partly over. The tornado lifted just west of the Indiana state line. Another tornado touched down about 0.50 mile northwest of where the first tornado lifted in eastern Will County. It crossed the state line into Lake County Indiana 5 miles east of Beecher. On the Illinois side the tornado blew down tree limbs and knocked down an antenna. One house had its roof taken off at the state line. On the Indiana side, several farm buildings were damaged and a row of pine trees was uprooted at another farm.

Two small tornadoes touched down producing parallel paths about 0.50 to 1 mile apart. The first tornado touched down southeast of Beecher damaging a house roof, grain bins and other farm buildings. A few trees and limbs were also damaged and one power pole was pushed partly over. The tornado lifted just west of the Indiana state line. Another tornado touched down about 0.50 mile northwest of where the first tornado lifted in eastern Will County. It crossed the state line into Lake County Indiana 5 miles east of Beecher. On the Illinois side the tornado blew down tree limbs and knocked down an antenna. One house had its roof taken off at the state line. On the Indiana side, several farm buildings were damaged and a row of pine trees was uprooted at another farm.

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.

Issued (UTC)ExpiredProductOffice
22:27 UTC23:00 UTCSevere Thunderstorm WarningLOT
23:27 UTC00:00 UTCSevere Thunderstorm WarningLOT
23:45 UTC00:30 UTCSevere Thunderstorm WarningLOT
00:27 UTC01:15 UTCSevere Thunderstorm WarningLOT

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 Moderate Risk. The outlook in force was issued at 06:20 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.

Dayton/James M C, OH (KDAY), 00:00Z

2.7 hours before the tornado, 325 km from the path. April 27, 1994.

Skew-T log-pSkew-T log-p diagram, Dayton/James M C, OH at 00:00Z on 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 981 joules per kilogram, CIN -3, lifted condensation level 1633 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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, Dayton/James M C, OH at 00:00Z on 1994-04-27The 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 70 square meters per square second, 0 to 6 km bulk shear 31 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
981 J/kg
Mixed-layer CIN
-3 J/kg
Surface CAPE
1291 J/kg
Mixed-layer LCL
1633 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.0
0-3 km lapse rate
7.9 K/km

Open this sounding in Storm Lab

Dayton/James M C, OH (KDAY), 12:00Z

9.3 hours after it, 325 km from the path. April 27, 1994.

Skew-T log-pSkew-T log-p diagram, Dayton/James M C, OH at 12:00Z on 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN -180, lifted condensation level 994 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, Dayton/James M C, OH at 12:00Z on 1994-04-27The 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 65 square meters per square second, 0 to 6 km bulk shear 41 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
1 J/kg
Mixed-layer CIN
-180 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
994 m above ground
0-6 km bulk shear
41 kt
0-1 km bulk shear
17 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1994 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of April 26, 1994

65 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 266:03 AM CDTF1Story, IA1.030$5,000 to $50,000
April 2612:00 PM CDTF2Washington, MN5.01,3001$500,000 to $5 million
April 2612:50 PM CDTF0Archer, TX0.120
April 261:03 PM CDTF1Dunn, WI4.01,200$50,000 to $500,000
April 261:05 PM CDTF2Archer, TX9.5150$50,000 to $500,000
April 261:10 PM CDTF2Barron, WI4.01,200$50,000 to $500,000
April 261:30 PM CDTF0Carter, OK0.130
April 262:20 PM CDTF2Price, WI12.01,200$50,000 to $500,000
April 262:40 PM CDTF0Montague, TX0.110
April 262:55 PM CDTF0Wise, TX0.110
April 263:07 PM CDTF0Montague, TX2.8100
April 263:25 PM CDTF1Atoka, OK9.080$500 to $5,000
April 263:30 PM CDTF1Montague, TX5.0200$50,000 to $500,000
April 263:30 PM CDTF0Montague, TX0.110
April 263:37 PM CDTF0Cooke, TX0.110
April 263:45 PM CDTF2Cooke, TX16.02008$5 million to $50 million
April 263:46 PM CDTF1Pittsburg, OK3.073$50 to $500
April 263:50 PM CDTF0Cooke, TX1.0100$50,000 to $500,000
April 263:55 PM CDTF1Vilas, WI4.5150$5,000 to $50,000
April 264:02 PM CDTF1Pushmataha, OK12.080$500 to $5,000
April 264:05 PM CDTF0Cooke, TX0.110$500 to $5,000
April 264:10 PM CDTF0Cooke, TX4.0100$5,000 to $50,000
April 265:10 PM EDTF0Hillsborough, FL0.110$500,000 to $5 million
April 264:20 PM CDTF1Latimer, OK6.050$5,000 to $50,000
April 262:30 PM MSTF0Mohave, AZ3.020
April 264:30 PM CDTF0Grayson, TX0.110
April 264:40 PM CDTF0Grayson, TX0.110
April 264:52 PM CDTF0Comanche, TX0.110
April 265:11 PM CDTF0Comanche, TX0.110
April 265:15 PM CDTF0Grayson, TX0.110
April 266:03 PM CDTF0DeSoto, MS3.050$500 to $5,000
April 266:05 PM CDTF0Erath, TX0.110
April 266:18 PM CDTF1Bryan, OK8.540$50,000 to $500,000
April 266:20 PM CDTF2Bosque, TX1.01001$50,000 to $500,000
April 266:35 PM CDTF0Bryan, OK1.540$500 to $5,000
April 266:50 PM CDTF1Greene, MO0.533$5,000 to $50,000
April 266:55 PM CDTF0Polk, MO2.050
April 267:00 PM CDTF0Fannin, TX0.110
April 267:00 PM CDTF2Lamar, TX6.0100$50,000 to $500,000
April 267:05 PM CDTF0DeSoto, MS1.050$50 to $500
April 267:06 PM CDTF0Bosque, TX0.110
April 267:20 PM CDTF0Fannin, TX0.110
April 267:20 PM CDTF0Fannin, TX0.110$5,000 to $50,000
April 267:22 PM CDTF1Laclede, MO2.550$5,000 to $50,000
April 267:25 PM CDTF0Marshall, MS0.523$50 to $500
April 267:25 PM CDTF0Lamar, TX0.110
April 267:45 PM CDTF1Wright, MO1.050$5,000 to $50,000
April 267:50 PM CDTF0Marshall, MS0.210$50 to $500
April 268:20 PM CDTF0Callaway, MO0.620
April 268:30 PM CDTF0Bosque, TX0.110
April 268:35 PM CDTF0Red River, TX0.110
April 268:50 PM CDTF0Erath, TX0.110$5,000 to $50,000
April 269:30 PM CDTF0Douglas, IL1.0100
April 269:31 PM CDTF1Coles, IL3.0130$500,000 to $5 million
April 269:35 PM CDTF0Jefferson, MO0.330$500 to $5,000
April 269:40 PM CDTF1Lake, IL to IN2.020$5,000 to $50,000
April 269:43 PM CDTF1Bosque, TX0.110$50,000 to $500,000
April 269:45 PM CDTF1Iroquois, IL1.020$5,000 to $50,000
April 269:45 PM ESTF0Pulaski, IN0.130
April 269:45 PM ESTF2Pulaski, IN20.0440$50,000 to $500,000

All 66 of them

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.