Tornadoes · United States · Illinois · 2007

EF0 tornado, Plainfield to Bolingbrook, Illinois, April 26, 2007

From Plainfield to Bolingbrook, this EF0 tornado ran 3.2 miles across Will County on April 26, 2007, touching down at 2:58 PM CDT and reaching 5 yards wide. It killed nobody, and did $100,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

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

  3. EF2111 to 135 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. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 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
EF0
Date
April 26, 2007
Touchdown
2:58 PM CDT (19:58 UTC)
Lifted
3:09 PM CDT (20:09 UTC)
On the ground
11 minutes
Path length
3.2 miles (5.1 km)
Path width
5 yards (5 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Will County
Touchdown point
41.600, -88.200
Lift-off point
41.670, -88.130
Record number
0704261358-01

What the Weather Service recorded

A tornado touched down in Plainfield and Bolingbrook.

A small tornado touched down at Route 126 and Eastern Avenue in Plainfield and continued for 3.2 miles to near Patrick Henry Parkway and Essington Road in Bolingbrook. The tornado path width was only about 5 yards wide. The tornado was rated EF0 with winds estimated at 65 to 80 mph.|The first damage was at a nursing home just northeast of downtown Plainfield. A minivan in the parking lot was flipped on its side and a couple other vehicles were jostled. There was roof damage to the nursing home where shingles and a couple small sections of roofing were torn off.|The funnel then passed over an older neighborhood with mature trees and ranch homes. There was no visible damage in this area. The large trees may have sheltered the neighborhood. The funnel then moved over an area of lakes with very few homes.|The next signs of damage were in a subdivision just southwest of the corner of Essington Road and 127th Street. This is a new subdivision with large two story homes and only small trees. These homes were more exposed. Here there was minor damage to several homes. Most of the damage was to shingles and playground equipment. The tornado continued into another subdivision north of 127th where trampolines and lawn furniture were blown around by the tornado. The flying debris damaged siding on a few homes. The tornado damage ended in a subdivision under construction on the east side of Essington Road where a construction trailer was damaged. The funnel dissipated over Bolingbrook golf club.

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
09:15 UTC00:38 UTCFlood WatchLOT
01:03 UTC05:02 UTCDense Fog AdvisoryLOT

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 16:30 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), 12:00Z

8.0 hours before the tornado, 169 km from the path. April 26, 2007.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2007-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 171 joules per kilogram, CIN -1, lifted condensation level 528 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 12:00Z on 2007-04-26The 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 59 square meters per square second, 0 to 6 km bulk shear 17 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
171 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
295 J/kg
Mixed-layer LCL
528 m above ground
0-6 km bulk shear
17 kt
0-1 km bulk shear
9 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.9 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 00:00Z

4.0 hours after it, 169 km from the path. April 27, 2007.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2007-04-27Temperature 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 -1, lifted condensation level 640 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, Lincoln, IL at 00:00Z on 2007-04-27The 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 20 square meters per square second, 0 to 6 km bulk shear 12 knots.1939Sfc1 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
-1 J/kg
Surface CAPE
28 J/kg
Mixed-layer LCL
640 m above ground
0-6 km bulk shear
12 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
6.0 K/km

Open this sounding in Storm Lab

The surface observations

Romeoville/Chi (LOT), 6 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
18:06 UTC60.857.2120° 5 kt1002.4+RA
18:25 UTC60.857.20° 0 kt1002.4BR
18:46 UTC64.460.80° 0 kt1002BR
19:04 UTC64.457.2250° 6 kt1001.7VCTS
19:25 UTC64.457.2300° 4 kt1001.4
19:44 UTC62.657.210° 5 kt1001.4VCTS
20:04 UTC62.657.2220° 12 kt171002-TSRA
20:26 UTC60.855.4240° 4 kt1002-TSRA
20:44 UTC60.857.2230° 3 kt1002-VCTSRA
21:04 UTC60.857.220° 3 kt1001.7TS
21:24 UTC60.855.440° 5 kt1001.7
21:44 UTC62.657.260° 3 kt1001.7

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

The radar

The Chicago radar (KLOT), 8 km away, was scanning. The volume nearest the touchdown began at 19:59 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
19:58 UTCTORNADOPlainfieldWill, ILTORNADO MOVED 3.2 MILES FROM ROUTE 126 AND EASTERN AVE IN PLAINFIELD TO ESSINGTON ROAD AND PATRICK HENRY PARKWAY IN BOLINGBROOK. AN SUV IN THE PARKING LOT OF A NURSING HOME WAS FLIPPED. THERE WAS ROOF DAMAGE TO NURSING H
20:08 UTCTSTM WND DMGBolingbrookWill, ILOFF DUTY BOLINGBROOK BATALLION FIRE CHIEF REPORTED THE ROOF RIPPED OFF OF A HOUSE NEAR 115TH ST AND WEBER ROAD.
20:15 UTCTSTM WND DMGPlainfieldWill, ILREPORT OF POSSIBLE DAMAGE AT ROUTE 126 AND EASTERN IN PLAINFIELD AND ALSO AT 127TH STREET AND ESSIGNTON IN BOLINGBROOK. EMERGENCY MANAGEMENT INVESTIGATING POSSIBLE TORNADO. ADDITIONAL INFORATION WILL BE PASSED ON AS SOON
20:58 UTCTORNADOPlainfieldWill, ILTORNADO MOVED 3.2 MILES FROM ROUTE 126 AND EASTERN AVE IN PLAINFIELD TO ESSINGTON ROAD AND PATRICK HENRY PARKWAY IN BOLINGBROOK. AN SUV IN THE PARKING LOT OF A NURSING HOME WAS FLIPPED. THERE WAS ROOF DAMAGE TO NURSING H

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2007 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of April 26, 2007

10 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 263:50 PM CDTEF0Cumberland, TN7.950$20,000
April 264:08 PM CDTEF1LaPorte, IN0.5100$40,000
April 264:18 PM CDTEF1LaPorte, IN0.34501$40,000
April 266:55 PM EDTEF0Brown, OH0.550$50,000
April 267:12 PM EDTEF1Berrien, MI1.250$10,000
April 267:23 PM EDTEF1Adams, OH1.550$70,000
April 267:50 PM EDTEF1Fleming, KY3.6200$100,000
April 267:52 PM EDTEF1Claiborne, TN4.6757$425,000
April 268:25 PM EDTEF0Pike, OH1.030$25,000
April 267:02 PM MDTEF0Arapahoe, CO0.150

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.