Tornadoes · United States · Illinois · 1998

F0 tornado, Hindsboro to Newman, Illinois, April 7, 1998

From Hindsboro to Newman, this F0 tornado ran 0.1 miles across Douglas County on April 7, 1998, touching down at 8:04 PM CDT and reaching 30 yards wide. It killed nobody.

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 7, 1998
Touchdown
8:04 PM CDT (01:04 UTC)
Path length
0.1 miles (0.2 km)
Path width
30 yards (27 m)
Deaths
0
Injuries
0
County
Douglas County
Touchdown point
39.770, -87.980
Lift-off point
39.770, -87.980
Record number
206

What the Weather Service recorded

A tornado briefly touched down destroying a machine shed 2 miles north of Hindsboro. No injuries were reported and no damage estimate was available.

A tornado touched down 3 miles northeast of Hindsboro knocking down several power poles and several outbuildings. No injuries were reported and no damage estimate was available.

A tornado briefly touched down in a field 2 miles south of Newman. No injuries or damage were reported.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

4 minutes of warning. NWS ILX issued a tornado warning for this county at 01:00 UTC, 4 minutes before the tornado touched down, in force until 01:45 UTC.

Issued (UTC)ExpiredProductOffice
00:03 UTC01:00 UTCTornado WarningILX
01:00 UTC01:45 UTCTornado WarningILX
02:48 UTC03:30 UTCTornado WarningILX

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. The outlook in force was issued at 10:48 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.

Lincoln, IL (KILX), 00:00Z

1.1 hours before the tornado, 68 km from the path. April 8, 1998.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 1998-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 756 joules per kilogram, CIN -2, lifted condensation level 671 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, Lincoln, IL at 00:00Z on 1998-04-08The 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 75 square meters per square second, 0 to 6 km bulk shear 40 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
756 J/kg
Mixed-layer CIN
-2 J/kg
Surface CAPE
1267 J/kg
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
40 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.3
0-3 km lapse rate
6.9 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 12:00Z

10.9 hours after it, 68 km from the path. April 8, 1998.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 1998-04-08Temperature 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 -82023, lifted condensation level 968 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, Lincoln, IL at 12:00Z on 1998-04-08The 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 164 square meters per square second, 0 to 6 km bulk shear 26 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
0 J/kg
Mixed-layer CIN
-82023 J/kg
Surface CAPE
27 J/kg
Mixed-layer LCL
968 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
27 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The surface observations

Champaign - Willard (CMI), 39 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
23:53 UTC5348200° 8 kt0972.2
00:53 UTC5247220° 8 kt0972.2
01:53 UTC5146220° 8 kt0972.6
02:53 UTC5045230° 9 kt0972.6

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

The radar

The Lincoln radar (KILX), 123 km away, was scanning. The volume nearest the touchdown began at 01:04 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.

This ground now

The live radar over the trackEvery 1998 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of April 7, 1998

32 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 74:01 PM CDTF0Peoria, IL0.130
April 74:10 PM CDTF0Cass, IL0.350
April 74:20 PM CDTF1Clark, MO2.550$50,000
April 74:20 PM CDTF2Mason, IL3.070
April 74:35 PM CDTF1Mason, IL0.3180
April 74:45 PM CDTF0Lee, IA0.130
April 75:00 PM CDTF0Lee, IA0.130
April 75:02 PM CDTF0Lee, IA0.130$1,000
April 75:31 PM CDTF0Warren, IL0.130
April 75:35 PM CDTF0Fulton, IL0.130
April 75:42 PM CDTF0Warren, IL0.130
April 75:52 PM CDTF1Warren, IL0.530$10,000
April 75:55 PM CDTF0Mason, IL0.130
April 76:02 PM CDTF1Warren, IL0.130$3,000
April 76:04 PM CDTF2Mason, IL11.030
April 76:05 PM CDTF0Logan, IL0.130
April 76:13 PM CDTF0Warren, IL0.130
April 76:14 PM CDTF0Christian, IL0.130
April 76:28 PM CDTF0Shelby, IL0.130
April 76:40 PM CDTF0Shelby, IL0.130
April 77:08 PM CDTF2Moultrie, IL11.01008$100,000
April 77:23 PM CDTF0Logan, IL0.130
April 77:42 PM CDTF0Douglas, IL0.230
April 77:58 PM CDTF0Douglas, IL0.330
April 78:11 PM CDTF0Edgar, IL0.230
April 78:15 PM CDTF0Edgar, IL0.230
April 78:20 PM CDTF0Vermilion, IL0.130
April 78:29 PM CDTF0Edgar, IL0.130
April 78:33 PM ESTF0Vermillion, IN0.180$30,000
April 78:49 PM CDTF0Edgar, IL0.230
April 79:45 PM ESTF1Montgomery, IN1.2100$30,000
April 79:51 PM ESTF0Pike, IN0.540

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.