Tornadoes · United States · Illinois · 2026

EF0 tornado, Holcomb, Illinois, April 2, 2026

This EF0 tornado ran 2.7 miles across Ogle County on April 2, 2026, touching down at 6:44 PM CDT and reaching 350 yards wide. It killed nobody.

Preliminary. This is NWS LOT's damage survey, filed in the Damage Assessment Toolkit as Holcomb. 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 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 survey

Rating, as surveyed
EF0, preliminary
Date
April 2, 2026
Touchdown
6:44 PM CDT (23:44 UTC)
Lifted
6:47 PM CDT (23:47 UTC)
On the ground
3 minutes
Path length
2.7 miles (4.4 km)
Path width
350 yards (320 m)
Deaths
0
Injuries
0
County
Ogle County
Touchdown point
42.058, -89.118
Lift-off point
42.075, -89.071
Highest wind the damage implies
85 mph
Surveyed by
NWS LOT
The office's name for it
Holcomb
Survey last edited
April 11, 2026
Record number
None yet. SPC numbers 2026 in the spring of 2027.

What the survey found

An EF-0 tornado began one mile west-southwest of the community of Holcomb near Church Road, where it damaged trees and peeled part of a sheet metal roof off of a barn. The tornado tracked east-northeastward across open fields before impacting Holcomb. In Holcomb, numerous trees were uprooted, snapped, or lost branches and limbs; a church had its roof and windows damaged; a few houses suffered minor roofing and fascia damage; and a barn was destroyed. A grain leg also collapsed, blocking the railroad tracks on the east side of the community. The tornado then continued east-northeastward for a little over one mile longer, impacting a property along State Route 251 between Big Mound Road and Holcomb Road before dissipating. Sporadic straight-line wind damage continued for several miles to the northeast of the tornado's end point.

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

The damage survey

47 damage points were recorded along this path by NWS LOT, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 85 mph.

  • Some red structure tossed onto the road. It's unclear what this object is or where it came from.
  • Grain leg collapsed onto railroad tracks
  • Three trees uprooted -- one towards the south-southeast, one towards the southeast, and one towards the east-southeast.
  • Portions of barn’s sheet metal roof torn off and deposited in the fields to the south and east of this farmstead.

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

Scattered thunderstorms moved across portions of northern Illinois during the evening of April 2nd producing wind damage and three tornadoes.

An NWS damage survey confirmed that an EF-0 tornado with estimated peak winds of 85 mph tracked through the community of Holcomb in northeastern Ogle County. The tornado caused extensive tree damage in Holcomb, damaged a few farm outbuildings, and caused a grain leg to collapse onto railroad tracks.

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. One was issued for the county at another hour that day.

The county was under a tornado watch, issued at 18:43 UTC and running to 02:03 UTC.

Issued (UTC)ExpiredProductOffice
18:43 UTC02:03 UTCTornado WatchLOT
23:01 UTC23:45 UTCSevere Thunderstorm WarningLOT
23:13 UTC23:30 UTCTornado WarningLOT
23:24 UTC00:00 UTCSevere Thunderstorm WarningLOT
23:42 UTC00:00 UTCSevere Thunderstorm WarningLOT
00:00 UTC00:30 UTCSevere Thunderstorm WarningLOT
00:01 UTC00:28 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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 19:56 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.

Davenport, (KDVN), 00:00Z

0.3 hours after it, 127 km from the path. April 3, 2026.

Skew-T log-pSkew-T log-p diagram, Davenport, at 00:00Z on 2026-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 21 joules per kilogram, CIN -76, lifted condensation level 1092 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, Davenport, at 00:00Z on 2026-04-03The 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 -14 square meters per square second, 0 to 6 km bulk shear 48 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
21 J/kg
Mixed-layer CIN
-76 J/kg
Surface CAPE
23 J/kg
Mixed-layer LCL
1092 m above ground
0-6 km bulk shear
48 kt
0-1 km bulk shear
36 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

The surface observations

Rockford (RFD), 14 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
21:45 UTC170° 15 kt211002.7
21:50 UTC170° 17 kt241002.4
21:54 UTC7063180° 19 kt271002.4
21:55 UTC 311002.4
22:00 UTC170° 15 kt251002.4
22:05 UTC 221002.4
22:10 UTC170° 13 kt1002
22:15 UTC170° 16 kt281002
22:20 UTC170° 18 kt1002
22:25 UTC 251002
22:30 UTC 18 kt251002
22:35 UTC170° 16 kt1001.7
22:40 UTC170° 18 kt251001.7
22:45 UTC170° 17 kt241002
22:50 UTC170° 15 kt1001.7
22:54 UTC6862170° 16 kt251002
22:55 UTC170° 16 kt211002
23:00 UTC170° 14 kt191002
23:05 UTC160° 14 kt1001.7
23:10 UTC170° 12 kt1001.7
23:15 UTC170° 14 kt1001.7
23:20 UTC170° 13 kt191002
23:24 UTC6862170° 15 kt201002TS
23:25 UTC170° 14 kt1002
23:30 UTC170° 12 kt191001.7
23:35 UTC 13 kt181001.7-RA
23:40 UTC170° 12 kt1002-RA
23:45 UTC170° 11 kt1002RA
23:48 UTC66.262.6190° 14 kt1002.4+TSRA BR
23:50 UTC190° 16 kt1002.4+RA BR
23:54 UTC6562190° 22 kt331002.4TSRA BR
23:55 UTC 1002.4RA BR
00:00 UTC 211002RA
00:05 UTC 1001.7-RA
00:10 UTC 251002.7-RA
00:15 UTC210° 21 kt261002.4-RA
00:20 UTC210° 18 kt251002.4
00:25 UTC 1003
00:30 UTC210° 12 kt1002.7-RA
00:35 UTC230° 12 kt1002.4-RA
00:40 UTC220° 14 kt191002.7+RA
00:45 UTC 1002.7+RA BR
00:50 UTC 1002.7RA BR
00:54 UTC6058170° 14 kt241003-TSRA BR
00:55 UTC170° 14 kt1003-RA BR
01:00 UTC 1002.7-RA
01:05 UTC160° 11 kt191002.4-RA
01:10 UTC170° 12 kt1002.7-RA
01:15 UTC6157170° 11 kt1002.7-RA
01:15 UTC160° 12 kt181002.7-RA
01:20 UTC170° 11 kt1002.7
01:25 UTC170° 13 kt1002.7
01:30 UTC170° 12 kt1002.7
01:35 UTC170° 12 kt1003
01:40 UTC180° 11 kt161003.4

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

The radar

The Chicago radar (KLOT), 98 km away, was scanning. The volume nearest the touchdown began at 23:41 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
23:02 UTCTORNADO2 Wsw SterlingWhiteside, ILAn EF1 tornado passed through northern portions of Sterling, with estimated maximum wind speeds around 90 mph. Along the path, damage was done to trees (including snapped) and two garages in the path saw complete loss of
23:11 UTCTSTM WND DMG4 N NelsonLee, ILMedia showed video of trees down and a barn collapsed along Mound Hill Rd. Time estimated from radar. This LSR is likely a repeat but with a more precise location.
23:11 UTCTSTM WND DMG6 Ssw PoloOgle, ILSheriff reports downed power poles and power lines, and a barn destroyed, on Mound Hill Road near Pilgrim Road in Lee County. Time estimated.
23:11 UTCTORNADO4 Nnw NelsonLee, ILAn NWS damage survey confirmed that an EF-1 tornado with estimated peak winds of 100 mph tracked for 5.75 miles through northwestern Lee County. The tornado damaged or destroyed multiple farm outbuildings, downed several
23:17 UTCTSTM WND DMG5 Nnw DixonLee, ILDebris reported in fields along Rt 26 just south of Woosung. Time estimated.
23:19 UTCTSTM WND GST 561 E Whiteside County AiWhiteside, ILAWOS station KSQI Sterling/Rock Falls Arpt.
23:19 UTCTSTM WND GST 561 E Whiteside County AiWhiteside, ILAWOS station KSQI Sterling/Rock Falls Arpt.
23:19 UTCTSTM WND GST 561 E Whiteside County AiWhiteside, ILAWOS station KSQI Sterling/Rock Falls Arpt.
23:19 UTCTSTM WND DMG5 Nw DixonLee, ILStructure damage at a business along Hwy 26 south of Woosung. Time estimated.
23:23 UTCTSTM WND DMG1 Nnw Grand DetourOgle, ILReports of trees down and damage to outbuildings near W. Edgewood Rd and S. Ridge Rd in Ogle County. Time estimated.
23:23 UTCTSTM WND DMG1 Nnw Grand DetourOgle, ILReports of trees down and damage to outbuildings near W. Edgewood Rd and S. Ridge Rd in Ogle County. Time estimated.
23:24 UTCTORNADO3 N Grand DetourOgle, ILAn NWS damage survey confirmed that a brief EF-1 tornado with estimated peak winds of 105 mph impacted a few properties along Ridge Road in southern Ogle County. One house had two-thirds of its roof removed by the tornad
23:25 UTCTSTM WND GST 65DixonLee, ILEstimated 60-70 mph gusts.
23:25 UTCTSTM WND GST 65DixonLee, ILEstimated 60-70 mph gusts.
23:30 UTCTSTM WND GST 60OregonOgle, ILSmall 2-inch limbs coming down.
23:30 UTCTSTM WND GST 60OregonOgle, ILSmall 2-inch limbs coming down.
23:37 UTCHAIL 1DixonLee, ILNickel to quarter sized hail.
23:37 UTCHAIL 1DixonLee, ILNickel to quarter sized hail.
23:44 UTCTSTM WND DMG2 Sse Davis JunctionOgle, ILTrees and power lines down on Hwy 251 between Big Mound Rd and Holcomb Rd. Grain bin destroyed.
23:44 UTCTORNADO3 Ssw Davis JunctionOgle, ILAn NWS damage survey confirmed that an EF-0 tornado with estimated peak winds of 85 mph and a path length of 2.71 miles tracked through the community of Holcomb in northeastern Ogle County. The tornado caused extensive t
23:46 UTCTSTM WND DMG3 S Davis JunctionOgle, ILGrain elevator down on train tracks. Trees and power lines also down in the area. Time estimated from radar.
23:50 UTCTSTM WND DMG1 Wnw Monroe CenterOgle, ILRoof or other structural material on road. Also downed tree at farm just east of I-39. Reported by retired NWS employee. Time estimated from radar.
23:50 UTCTSTM WND DMG1 Wnw Monroe CenterOgle, ILRoof or other structural material on road. Also downed tree at farm just east of I-39. Reported by retired NWS employee. Time estimated from radar.
00:04 UTCHAIL 12 W LindenwoodOgle, ILQuarter sized hail ongoing at E Lindenwood Rd and IL-251. Has been nearly continuous for several minutes.
00:04 UTCHAIL 12 W LindenwoodOgle, ILQuarter sized hail ongoing at E Lindenwood Rd and IL-251. Has been nearly continuous for several minutes.
00:29 UTCTSTM WND DMGWoodstockMchenry, ILTree downed onto a house on the 600 block of South Jefferson Street in Woodstock. Time estimated from radar.
01:07 UTCRAIN 1.72 W FreeportStephenson, IL
01:10 UTCTSTM WND GST 55MarengoMchenry, ILReports of 50-60 mph wind gusts in the Marengo area.
01:10 UTCTSTM WND GST 55MarengoMchenry, ILReports of 50-60 mph wind gusts in the Marengo area.

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 April 2, 2026

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

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 24:11 PM CDTEF1Washington, IA3.9100
April 24:36 PM CDTEF0Johnson, IA2.250
April 25:25 PM CDTEF1Clinton, IA18.1250
April 25:25 PM CDTEF0Knox, IL8.0150$150
April 26:00 PM CDTEF1Carroll, IL0.375
April 26:02 PM CDTEF1Whiteside, IL4.175
April 26:09 PM CDTEF1Whiteside, IL6.6250
April 26:18 PM CDTEF1Knox, IL5.7100
April 26:18 PM CDTEF1Knox, IL6.2250$250
April 26:23 PM CDTEF0Knox, IL3.760
April 26:24 PM CDTEF1Ogle, IL0.680
April 27:36 PM EDTEF0Parke, IN0.250

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.