Tornadoes · United States · Illinois · 2026

EF1 tornado, Chestervale to Newburg, Illinois, June 10, 2026

From Chestervale to Newburg, this EF1 tornado ran 19.8 miles across Logan and Macon counties on June 10, 2026, touching down at 11:19 PM CDT and reaching 170 yards wide. It killed nobody.

Preliminary. This is NWS ILX's damage survey, filed in the Damage Assessment Toolkit as Mount Pulaski-Forsyth Tornado. The rating, the path and the casualties are the survey's and can change while it is revised. The Storm Prediction Center compiles the official record of 2026 from these surveys and publishes it in the spring of 2027; this page moves to that tornado's permanent address when it does.

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 mph

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

  2. EF186 to 110 mphthis tornado

    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 survey

Rating, as surveyed
EF1, preliminary
Date
June 10, 2026
Touchdown
11:19 PM CDT (04:19 UTC)
Lifted
11:42 PM CDT (04:42 UTC)
On the ground
23 minutes
Path length
19.8 miles (31.8 km)
Path width
170 yards (155 m)
Deaths
0
Injuries
0
Counties
Logan and Macon counties
Touchdown point
40.051, -89.308
Lift-off point
39.964, -88.962
Highest wind the damage implies
90 mph
Surveyed by
NWS ILX
The office's name for it
Mount Pulaski-Forsyth Tornado
Survey last edited
June 16, 2026
Record number
None yet. SPC numbers 2026 in the spring of 2027.

What the survey found

The tornado touched down about 3 miles northwest of Mount Pulaski

where it did some minor tree damage. The tornado intensified as it

progressed east along 900 St, where it did extensive tree damage for

about a half mile, damaging numerous trees. The tornado angled

southeast and crossed Hwy 54 producing more tree damage. The tornado

produced mainly tree damage for the remainder of its time on the

ground, dissipating about 3 miles north of Forsyth.

Written by NWS ILX in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.

The damage survey

56 damage points were recorded along this path by NWS ILX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 88 mph.

  • Large branches ripped from trees and blown across road
  • Branches snapped looking east from dead end drive
  • Several trees with damage along the tree line
  • Numerous trees damaged in this line of woods

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

A line of thunderstorms developed ahead of an approaching cold front during the evening of June 10th. Scattered wind damage was observed along and north of the I-72 corridor, with the most concentrated damage focusing across portions of Menard, Logan, Sangamon, and Macon counties where the cells interacted with an existing outflow boundary from earlier storms. Six tornadoes touched down within this corridor, including an EF-1 tornado that tracked across Abraham Lincoln Capital Airport and the north side of Springfield.

A tornado touched down north of the junction of 900th Street and 878th Street about 3 miles northwest of Mount Pulaski at 11:19pm CDT. The tornado caused extensive tree damage as it tracked eastward along 900th Street before curving to the southeast and causing additional tree damage as it crossed IL-54. It then tracked into northwestern Macon County along 2400th Avenue between West Hampshire Road and West School Road at 11:32pm CDT.

This tornado crossed from Logan County into Macon County along 2400th Avenue between West Hampshire Road and West School Road at 11:32pm CDT. It continued southeastward, causing mostly minor tree damage before dissipating just west of the intersection of US-51 and West Wise Road about 3 miles north of Forsyth at 11:42pm CDT.

A tornado touched down along East Hampshire Road about 2 miles west-northwest of Argenta at 11:50pm CDT. It tracked east-southeastward damaging an outbuilding and trees before passing through Argenta and snapping numerous trees. The tornado then produced additional tree damage before crossing into Piatt County near the intersection of Newburg Road and County Line Road at 11:55pm CDT.

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

The warnings

21 minutes of warning. NWS ILX issued a tornado warning for this county at 03:58 UTC, 21 minutes before the tornado touched down, in force until 04:34 UTC.

The county was under a severe thunderstorm watch, issued at 04:05 UTC and running to 05:16 UTC.

Issued (UTC)ExpiredProductOffice
18:00 UTC09:17 UTCFlood WatchILX
19:27 UTC20:00 UTCSevere Thunderstorm WarningILX
19:40 UTC22:00 UTCSevere Thunderstorm WatchILX
20:00 UTC20:30 UTCSevere Thunderstorm WarningILX
20:31 UTC21:00 UTCSevere Thunderstorm WarningILX
00:06 UTC04:00 UTCTornado WatchILX
03:58 UTC04:34 UTCTornado WarningILX
04:05 UTC05:16 UTCSevere Thunderstorm WatchILX
04:05 UTC04:45 UTCSevere Thunderstorm WarningILX
04:12 UTC04:24 UTCTornado WarningILX
04:14 UTC04:30 UTCTornado WarningILX
04:28 UTC04:57 UTCTornado WarningILX
04:30 UTC04:49 UTCSevere Thunderstorm WarningILX
16:39 UTC02:00 UTCFlood WatchILX
19:02 UTC02:00 UTCTornado WatchILX

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, with a 0.05 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 01:19 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

4.3 hours before the tornado, 48 km from the path. June 11, 2026.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2026-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1324 joules per kilogram, CIN -92, lifted condensation level 1228 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 2026-06-11The 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 175 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
1324 J/kg
Mixed-layer CIN
-92 J/kg
Surface CAPE
1550 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.3
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 12:00Z

7.7 hours after it, 48 km from the path. June 11, 2026.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-06-11Temperature 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 -6745, lifted condensation level 1453 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 2026-06-11The 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 73 square meters per square second, 0 to 6 km bulk shear 35 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
-6745 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1453 m above ground
0-6 km bulk shear
35 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.5 K/km

Open this sounding in Storm Lab

The radar

The Lincoln radar (KILX), 23 km away, was scanning. The volume nearest the touchdown began at 04:22 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
03:39 UTCRAIN 1.543 E South PekinTazewell, ILMesonet station FW1256 Pekin.
03:44 UTCFLASH FLOODTremontTazewell, ILSix inches of flowing water over entrance road to Tazewell County EMA on route 29 in Tremont. Had 6 to 7 inches of flowing water acxros route 9 in front of Caseys.
03:49 UTCTORNADO3 Ne TallulaMenard, ILEF-1, max wind speed 107 mph, path length 4.75 miles, max width 150 yards. The tornado spun up 3 miles northeast of Tallula, damaging a grain bin and several trees at a farmstead on Reimer Ave. It continued tracking east
03:50 UTCTSTM WND DMG3 Ne TallulaMenard, ILMultiple sheds completely destroyed, utility poles missing, 30 foot grain bin destroyed and blown into a house. Possible tornado.
03:52 UTCTSTM WND DMG2 S PetersburgMenard, ILHeavy tree damage at Lincolns New Salem State Park.
03:59 UTCTORNADO2 W AthensMenard, ILEF-1, max wind 105 mph, path length 2.48 miles, max width 200 yards. This tornado touched down along Kent St. west of Athens, and tracked southeast to Fitschen Rd. on the south edge of Athens. A number of trees were snap
04:04 UTCTORNADO1 E Capital AirportSangamon, ILCorrects previous tornado report from 1 E Capital Airport. EF-1, max wind speed 110 mph, path length 24.14 miles, max width 250 yards. The tornado began about 3 mile west of Springfield Capital Airport where it lofted 6,
04:05 UTCTSTM WND DMG1 E Capital AirportSangamon, ILDebris from a metal building blown on both sides of highway 29 at the airport entrance.
04:05 UTCTSTM WND DMG2 E Capital AirportSangamon, ILTrees and power poles down on Taintor Rd along the north edge of the state fairgrounds.
04:05 UTCTORNADO1 E Capital AirportSangamon, ILEF-1, max wind speed 110 mph, path length 20.25 miles, max width 250 yards. The Springfield to Mechanicsburg tornado started at the Springfield airport where it lofted 6,000-lb storage sheds and rolled an enclosed traile
04:07 UTCTSTM WND DMGAthensMenard, ILTree blown down on a power line with broken power pole.
04:07 UTCTSTM WND DMGPetersburgMenard, ILPower lines blown down in Petersburg.
04:10 UTCTSTM WND DMG2 E Capital AirportSangamon, ILTrees and power poles and lines blown down at 8th street and Taintor Raod on north side of IL State Fairgrounds in Springfield.
04:12 UTCTSTM WND DMG1 Nne GrandviewSangamon, ILPower lines down on Sangamon Ave.
04:12 UTCTSTM WND DMGAthensMenard, ILTrees blown down.
04:14 UTCTSTM WND DMG1 N Clear LakeSangamon, ILPart of a metal building had its roof collapsed.
04:18 UTCTSTM WND DMGRivertonSangamon, ILTrees blown down and metal on a road near Riverton.
04:19 UTCTORNADO3 Nnw Mount PulaskiLogan, ILThe tornado touched down about 3 miles northwest of Mount Pulaski where it did some minor tree damage. The tornado intensified as it progressed east along 900 St, where it did extensive tree damage for about a half mile,
04:20 UTCTSTM WND DMG3 N SpringfieldSangamon, ILPower pole blown down with tree branches on North 5th street in Springfield.
04:20 UTCTSTM WND DMGPetersburgMenard, ILMultiple trees down on route 97 in Petersburg.
04:26 UTCRAIN 1.742 Ese BloomingtonMclean, ILMesonet station GW0991 Bloomington.
04:28 UTCTSTM WND DMG3 Ene ChestnutDe Witt, ILTree blown over and blocking highway 54 just east of the Logan DeWitt county line.
04:29 UTCTSTM WND DMGMechanicsburgSangamon, ILMultiple power lines blown down.
04:30 UTCRAIN 2.113 E South PekinTazewell, ILMesonet station FW1256 Pekin.
04:33 UTCTSTM WND DMGLincolnLogan, ILTrees and power lines blown down on 600 block of North Madison Street in Lincoln.
04:35 UTCRAIN 1.033 W Leland GroveSangamon, ILMesonet station GW3296 5 WSW Springfield.
04:36 UTCRAIN 2.222 Ese BloomingtonMclean, ILMesonet station GW0991 Bloomington.
04:40 UTCTSTM WND DMGMaroaMacon, ILTrees and power lines blown down in Maroa.
04:44 UTCTSTM WND DMGLathamLogan, ILThree power poles blown down at 2000 Ave and 700 St in Latham.
04:45 UTCFUNNEL CLOUD2 W ForsythMacon, ILFunnel cloud sighted west of Forsyth.
04:45 UTCTSTM WND DMGSpringfieldSangamon, ILTrees blown down at Chatham road at Seven Pines, Jefferson at First St, Livingston and Cook st, 5th and Sangamon.
04:45 UTCRAIN 1.185 Ene WaynesvilleDe Witt, ILMesonet station DW9761 Waynesville.
04:45 UTCTORNADO2 S LaneDe Witt, ILTornado on the ground south of Lane.
04:46 UTCRAIN 2.462 Ese BloomingtonMclean, ILMesonet station GW0991 Bloomington.
04:48 UTCTSTM WND DMGOreanaMacon, ILTrees and power lines blown donw in Oreana.
04:50 UTCTSTM WND DMGArgentaMacon, ILSeveral trees blown down in Argenta.
04:50 UTCTSTM WND DMGBlue MoundMacon, ILPowerline blown down in Blue Mound.
04:50 UTCTORNADO2 Wnw ArgentaMacon, ILThe tornado touched down about 2 miles west-northwest of Argenta where it damaged an outbuilding and some trees. It progressed east through Argenta where it snapped off several trees. The tornado produced mainly tree dam
05:00 UTCFLOOD2 Wnw NormalMclean, ILStanding water reported on Parkside Road near Normal Community West High School and Champion Fields.
05:00 UTCFLASH FLOOD2 E BloomingtonMclean, ILSignificant roadway flooding near Four Seasons Road in Bloomington, with around 2 to 3 feet of standing water.

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

This ground now

The live radar over the trackEvery 2026 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of June 10, 2026

23 more have been surveyed in the United States that day, so far.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 103:01 PM CDTEF0Kane, IL1.450
June 103:01 PM CDTEF0Dodge, WI0.775
June 103:10 PM CDTEF0Fond du Lac, WI0.975
June 103:29 PM CDTEF1Mercer, MO2.5100
June 103:43 PM CDTEF0Mercer, MO3.5100
June 103:55 PM CDTEF0Cook, IL2.5175
June 103:56 PM CDTEF0DeKalb, MO4.375
June 103:57 PM CDTEF2Putnam, MO8.4300
June 104:13 PM CDTEF0Daviess, MO5.575
June 104:25 PM CDTEF1Daviess, MO10.5200
June 104:49 PM CDTEF0Putnam, MO0.775
June 105:09 PM CDTEF0Grundy, MO0.950
June 105:18 PM CDTEF0Grundy, MO0.7100
June 105:23 PM CDTEF0Davis, IA0.525
June 106:36 PM CDTEF0Adair, MO6.875
June 107:12 PM CDTEF0Dickinson, KS0.650
June 107:45 PM CDTEF0Dickinson, KS1.150
June 108:17 PM CDTEF1Dickinson, KS0.575
June 1010:49 PM CDTEF1Menard, IL4.8150
June 1010:59 PM CDTEF1Menard, IL2.5200
June 1011:04 PM CDTEF1Sangamon, IL24.1250$250
June 1011:50 PM CDTEF0Macon, IL7.6100
June 1012:02 AM CDTEF1Piatt, IL10.170

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. A survey can be revised, so the rating, the path and the casualties can all still change.

Sources

NWS Damage Assessment Toolkit, the record the survey teams file from the damage, and NOAA Storm Prediction Center storm reports. Neither is the official database for 2026, which SPC publishes in the spring of 2027.