NOTE: This page is still under construction and will be updated over the next few weeks as we continue to conduct our post-event analysis. We thank you for your patience!
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Photo of a tornado near Harrison, IL. Courtesy of Jimmy Sienicki |
Overview
Page last updated: 7 PM CDT 4/18/2026
Tornadoes
Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded. Additionally, the table can fill the entire window by clicking the small circular expanding arrow icon at the very top right of the table and returned to its original size by clicking the button again. The side information panel that opens over the map can be closed using the "X" on the upper right corner of the pop-up. Zoom into the map and click damage points to see detailed information and pictures from the surveys.
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NOTE: Times shown below are local to your device's time zone. |
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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| Tornadoes that fail to impact any ratable damage indicators on the EF-Scale are rated EF-Unknown (EF-U) | |||||
Storm Reports
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Preliminary Storm Report Map |
Preliminary Local Storm Report...Summary
National Weather Service Chicago IL
901 PM CDT Sat Apr 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1125 PM Flood 2 NNE Northbrook 42.15N 87.82W
04/17/2026 Cook IL Other Federal
The gauge on the north branch of the Chicago
River at Deerfield quickly rose into minor
flood stage due to heavy rain.
1118 PM Marine Tstm Wind 3 NE Beverly Shores 41.72N 86.94W
04/17/2026 M47 MPH LMZ745 IN C-Man Station
Measured at MCYI3.
1107 PM Tstm Wnd Gst 4 NNE Teft 41.25N 86.95W
04/17/2026 M58 MPH Porter IN Public
Measured at an Ambient PWS.
1100 PM Flood 1 SSE Buffalo Grove 42.15N 87.96W
04/17/2026 Cook IL Other Federal
The gauge on Buffalo Creek at Wheeling
quickly rose into minor flood stage due to
heavy rain.
1055 PM Tstm Wnd Dmg Wheatfield 41.19N 87.06W
04/17/2026 Jasper IN Public
Photo shared on social media showed damaged
fence and large playground set rolled out of
yard. Time estimated by radar.
1049 PM Tstm Wnd Dmg 3 ENE Lakes of the Four 41.43N 87.16W
04/17/2026 Porter IN Public
Photo shared on social media showing 1 foot
in diameter hardwood tree uprooted. Time
estimated by radar.
1045 PM Tstm Wnd Dmg 2 WNW Kentland 40.78N 87.49W
04/17/2026 Newton IN Emergency Mngr
Numerous powerlines and poles were reported
down south of 1300 South from US 41 to State
Line Road.
1036 PM Tstm Wnd Dmg St. John 41.45N 87.47W
04/17/2026 Lake IN Public
Photos shared on social media of tree
branches more than 6 inches in diameter
downed in St. John. Time estimated by radar.
1034 PM Tstm Wnd Dmg Lowell 41.29N 87.42W
04/17/2026 Lake IN Public
Numerous reports of downed power poles and
large tree limbs down throughout Lowell.
Photo shared on social media depicted wall
of garage collapsed. Time estimated by
radar.
1033 PM Tstm Wnd Dmg 2 SW St. John 41.42N 87.49W
04/17/2026 Lake IN Public
Report of tree limbs downed.
1033 PM Tstm Wnd Dmg Lowell 41.29N 87.43W
04/17/2026 Lake IN Fire Dept/Rescue
Pictures shared of a couple of power poles
leaning along Commercial Avenue west of
Nichols Street. Time estimated from radar.
1031 PM Tstm Wnd Gst 6 E Goodenow 41.39N 87.53W
04/17/2026 M68 MPH Will IL Public
A personal weather station recorded a 68 mph
gust south of Dyer just west of the IL-IN
state line.
1031 PM Tstm Wnd Gst 4 WNW Cedar Lake 41.39N 87.52W
04/17/2026 M68 MPH Lake IN Public
Measured at an Ambient PWS.
1030 PM Tstm Wnd Gst 5 SSW Earl Park 40.62N 87.46W
04/17/2026 M54 MPH Benton IN Emergency Mngr
Benton County EM recorded a 54 mph wind gust
at IN Rt. 18 and CR 700 W west of Fowler.
1029 PM Tstm Wnd Dmg 1 SSE Kentland 40.76N 87.44W
04/17/2026 Newton IN Public
Billboard collapsed, significant uplift of
roofing from building, collapsed farm
outbuliding, and semi truck blown over.
Possible tornado. Time estimated by radar.
1025 PM Tstm Wnd Dmg 3 NW Kentland 40.81N 87.49W
04/17/2026 Newton IN Fire Dept/Rescue
Newton County EMS reported numerous power
poles down south of CR 1300S from the IL-IN
state line east to US-41 northwest of
Kentland. Time estimated using radar.
1022 PM Tstm Wnd Dmg Beecher 41.34N 87.62W
04/17/2026 Will IL Public
Report relayed via social media of power
poles and trees down in Beecher, including a
video of an apparent fire started by a
branch on a power line. Time estimated by
radar.
1018 PM Tstm Wnd Dmg Momence 41.16N 87.66W
04/17/2026 Kankakee IL Public
Photo shared on social media of softwood
trees snapped and fences damaged. Time
estimated by social media.
1015 PM Tstm Wnd Dmg 2 N Stoutsburg 41.22N 87.12W
04/17/2026 Jasper IN Public
Report relayed of damaged power poles on
County Road 350 and near Brook, as well as
on State Road 55 north of Goodland. Time
estimated by radar.
1015 PM Tstm Wnd Gst 1 ESE Watseka 40.77N 87.71W
04/17/2026 M72 MPH Iroquois IL Public
Measured at PWS WATSE19.
1015 PM Tstm Wnd Gst 2 SW Papineau 40.95N 87.75W
04/17/2026 M62 MPH Iroquois IL Public
Measured at an Ambient PWS.
1012 PM Tstm Wnd Gst 3 NE Navy Pier 41.92N 87.57W
04/17/2026 M64 MPH LMZ741 IL C-Man Station
The Harrison-Dever Crib recorded a 56 kt
wind gust.
1011 PM Tstm Wnd Dmg Watseka 40.77N 87.73W
04/17/2026 Iroquois IL Emergency Mngr
Emergency manager reported extensive tree
damage in Watseka, particularly around the
southeast side of town. Numerous uprooted
trees and snapped tree trunks were noted.
Time estimated using radar.
1010 PM Tstm Wnd Gst Watseka 40.77N 87.73W
04/17/2026 M73 MPH Iroquois IL Emergency Mngr
Emergency manager recorded a 73 mph wind
gust in Watseka. Time estimated using radar.
1009 PM Tstm Wnd Dmg Kankakee 41.12N 87.87W
04/17/2026 Kankakee IL Public
Video shared on social media shows extensive
tree damage in Kankakee, including branches
up to 1 foot in diameter downed. Time
estimated by radar.
1009 PM Tstm Wnd Dmg Manteno 41.25N 87.84W
04/17/2026 Kankakee IL Emergency Mngr
Reports of tree damage in the Manteno area.
Time estimated using radar.
1008 PM Tstm Wnd Gst Indian Head Park 41.77N 87.90W
04/17/2026 M65 MPH Cook IL Public
1008 PM Tstm Wnd Gst 1 W Northerly Island 41.86N 87.62W
04/17/2026 M62 MPH Cook IL Public
A personal weather station recorded a 62 mph
gust in the South Loops community area of
Chicago.
1006 PM Tstm Wnd Gst 4 SW Crescent City 40.73N 87.91W
04/17/2026 M61 MPH Iroquois IL Public
A personal weather station recorded a 61 mph
gust west of Watseka.
0955 PM Tstm Wnd Dmg Bonfield 41.15N 88.06W
04/17/2026 Kankakee IL Public
Report relayed on social media of downed
power poles and trees in Bonfield. Time
estimated by radar.
0951 PM Tstm Wnd Dmg 1 WSW Buckley 40.59N 88.06W
04/17/2026 Iroquois IL Emergency Mngr
Report of semi trucks blown over on I-57
near mile marker 270 southwest of Buckley.
Time estimated using radar.
0950 PM Tstm Wnd Gst 2 S Buckingham 41.02N 88.17W
04/17/2026 M65 MPH Kankakee IL Public
A personal weather station recorded a 65 mph
gust south of Buckingham.
0949 PM Tstm Wnd Dmg 1 NNW Paxton 40.47N 88.10W
04/17/2026 Ford IL Emergency Mngr
Report of an eight inch diameter tree branch
broken off of a tree near the intersection
of Oak St and American St in Paxton. Time
estimated by radar.
0949 PM Tstm Wnd Dmg Loda 40.52N 88.07W
04/17/2026 Iroquois IL Emergency Mngr
Grain bins were destroyed in Loda. Exact
location unknown. Time estimated using
radar.
0943 PM Tstm Wnd Dmg Villa Park 41.88N 87.99W
04/17/2026 DuPage IL Public
Many small branches downed in Villa Park,
IL, during storm winds.
0942 PM Tstm Wnd Gst 3 S Bartlett 41.95N 88.17W
04/17/2026 M55 MPH DuPage IL Public
0940 PM Flood 1 SE Third Lake 42.36N 88.00W
04/17/2026 Lake IL Emergency Mngr
Lake County EMA reported flooding at US-45
and Washington St in Third Lake.
0940 PM Flood 2 ENE Green Oaks 42.31N 87.88W
04/17/2026 Lake IL Emergency Mngr
Lake County EMA reported flooding at US-41
and Buckley Rd in North Chicago.
0940 PM Flood Fox Lake 42.39N 88.18W
04/17/2026 Lake IL Emergency Mngr
Lake County EMA reported flooding on Rollins
Rd in Fox Lake.
0939 PM Tstm Wnd Dmg Rolling Meadows 42.08N 88.02W
04/17/2026 Cook IL Public
Photo shared on social media of tree roughly
2 feet in diameter snapped. Time estimated
by radar.
0930 PM Tstm Wnd Dmg Gibson City 40.47N 88.38W
04/17/2026 Ford IL Broadcast Media
Structure damage was reported around parts
of Gibson City, including one business which
had large portions of metal siding ripped
off. Tree damage was also reported in town.
Time estimated using radar.
0924 PM Tstm Wnd Dmg 5 W Dwight 41.09N 88.53W
04/17/2026 Livingston IL Public
Report of several power lines downed along
Route 17 west of I-55 near Dwight. Time
estimated by radar.
0920 PM Flood 2 S Harvard 42.39N 88.62W
04/17/2026 McHenry IL Trained Spotter
Report of multiple locations with around six
inches of flowing water across IL-23 south
of Harvard.
0917 PM Tstm Wnd Gst 2 SSW Marseilles 41.30N 88.73W
04/17/2026 M66 MPH La Salle IL Public
A personal weather station recorded a 66 mph
gust south of Marseilles.
0916 PM Tstm Wnd Dmg 1 E Geneva 41.89N 88.28W
04/17/2026 Kane IL Emergency Mngr
Power lines reported down causing trees to
catch fire at Kirk Rd and IL-38 in Geneva.
Time estimated by radar.
0916 PM Tstm Wnd Dmg 1 N Batavia 41.86N 88.31W
04/17/2026 Kane IL Emergency Mngr
Top half of a tree down in the road at IL
Rt. 31 and Fabian Pkwy in Batavia. Time
estimated by radar.
0913 PM Tstm Wnd Gst 4 NW Cornell 41.03N 88.79W
04/17/2026 M50 MPH Livingston IL Public
A personal weather station recorded a 50 mph
gust south of Streator.
0913 PM Tstm Wnd Gst 4 NW Cornell 41.03N 88.79W
04/17/2026 M50 MPH Livingston IL Public
A personal weather station recorded a 50 mph
gust south of Streator.
0912 PM Tstm Wnd Dmg 3 W North Aurora 41.81N 88.38W
04/17/2026 Kane IL Public
Photo shared on social media showed tree
branch roughly 3 to 6 inches in diameter
downed on the west side of Aurora by Randall
and I-88. Time estimated by radar.
0851 PM Tstm Wnd Dmg 2 NW Sandwich 41.67N 88.66W
04/17/2026 De Kalb IL Trained Spotter
Corrects previous tstm wnd dmg report from 2
NW Sandwich. Report of a two foot diameter
tree trunk down and blocking the southbound
lane of Somonauk Rd just north of Pratt Rd
in Sandwich. Time estimated by radar.
0840 PM Tstm Wnd Dmg 1 N Leland 41.63N 88.80W
04/17/2026 De Kalb IL Public
Metal roof damaged on 16 year old building.
0833 PM Tstm Wnd Dmg Earlville 41.59N 88.92W
04/17/2026 La Salle IL Public
Photo shared on social media of doors blown
out of farm outbuilding. Time estimated by
social media.
0830 PM Flood 5 WSW Hebron 42.46N 88.53W
04/17/2026 McHenry IL Emergency Mngr
Standing water on IL-173 near Oak Grove Road
near Alden.
0825 PM Tstm Wnd Dmg 3 E Mendota 41.55N 89.06W
04/17/2026 La Salle IL NWS Employee
Several semi trucks were overturned on I-39
east of Mendota. Time estimated using radar.
0824 PM Tornado 7 SSW Fairbury 40.66N 88.58W
04/17/2026 Livingston IL NWS Storm Survey
An NWS damage survey determined an EF-1
tornado started in McLean County and crossed
into Livingston County. Peak winds were
estimated near 90 mph.
0818 PM Tstm Wnd Dmg 5 WNW Troy Grove 41.49N 89.17W
04/17/2026 La Salle IL Emergency Mngr
A pole barn was severely damaged southwest
of Mendota with large portions of siding
removed and partial structural collapse.
Time estimated using radar.
0814 PM Rain 2 SSW Loves Park 42.29N 89.07W
04/17/2026 M2.31 Inch Winnebago IL Public
Private weather station KILROCKF241 recorded
2.31 inches of rain since 7 PM.
0814 PM Rain 2 SW Timberlane 42.32N 88.89W
04/17/2026 M1.81 Inch Boone IL Public
Private weather station KILILLIN2 recorded
1.81 inches since 7 PM.
0810 PM Tstm Wnd Gst 5 ENE Herbert 42.18N 88.69W
04/17/2026 M76 MPH McHenry IL Dept of Highways
IL DOT station on Harmony Road west of Riley
recorded 76 mph wind gust.
0809 PM Tstm Wnd Gst 4 S Garden Prairie 42.20N 88.73W
04/17/2026 M61 MPH Boone IL Public
Private weather station KILGARDE2 recorded
61 mph gust.
0754 PM Tstm Wnd Gst Rockford Airport 42.20N 89.10W
04/17/2026 M62 MPH Winnebago IL ASOS
Rockford ASOS KRFD gusted 62 mph.
0749 PM Tstm Wnd Gst 4 WSW Hebron 42.46N 88.52W
04/17/2026 M63 MPH McHenry IL Amateur Radio
63 mph gust near Alden Road and IL-173.
Relayed via amateur radio. Time estimated by
radar.
0733 PM Funnel Cloud 1 E Capron 42.40N 88.72W
04/17/2026 Boone IL Emergency Mngr
McHenry County EM reports funnel cloud near
Capron.
0715 PM Tornado 2 ESE Roscoe 42.40N 88.98W
04/17/2026 Winnebago IL Amateur Radio
Tornado on the ground visible from IL-173
and Belvidere Road looking north. Relayed by
amateur radio.
0713 PM Tstm Wnd Dmg 1 S Roscoe 42.40N 89.01W
04/17/2026 Winnebago IL Public
Photo shows multiple large branches broken
and blocking a roadway near McDonald Road
and Double Ditch Circle in Roscoe. Relayed
by social media. Possible tornado. Time
estimated by radar.
0713 PM Tstm Wnd Dmg Roscoe 42.41N 89.01W
04/17/2026 Winnebago IL Amateur Radio
Several large trees damaged south west of
Belvidere Road and Main Street in Roscoe.
Relayed by amateur radio. Time estimated by
radar. Possible tornado.
0709 PM Tstm Wnd Dmg 2 W Roscoe 42.41N 89.05W
04/17/2026 Winnebago IL Public
Multiple structures with roof damage near
Roscoe Road and Leena Drive in Roscoe.
Possible tornado. Time estimated by radar.
0703 PM Tornado 3 SE Shirland 42.42N 89.15W
04/17/2026 Winnebago IL NWS Storm Survey
An NWS Damage survey confirmed an EF-1
tornado with peak winds of 95 mph, path
length of 11.2 miles, and maximum width of
350 yards damaged trees and buildings
including within the town of Roscoe, IL.
This tornado crossed paths with a tornado
that occurred just a few hours beforehand.
0649 PM Tstm Wnd Dmg 5 NNW Pecatonica 42.38N 89.38W
04/17/2026 Winnebago IL Broadcast Media
Photos passed along depict softwood trees
snapped near the intersection of Trask
Bridge Road and Best Road. Time estimated by
radar.
0520 PM Hail South Beloit 42.49N 89.04W
04/17/2026 E1.50 Inch Winnebago IL Public
Report from mPING: Ping Pong Ball (1.50
in.).
0516 PM Hail South Beloit 42.49N 89.04W
04/17/2026 E1.25 Inch Winnebago IL Public
Report from mPING: Half Dollar (1.25 in.).
0515 PM Hail 3 E South Beloit 42.49N 88.99W
04/17/2026 E0.75 Inch Winnebago IL Public
Report from mPING: Dime (0.75 in.).
0514 PM Hail South Beloit 42.49N 89.04W
04/17/2026 M1.50 Inch Winnebago IL Public
Relayed via mping. Time estimated by radar.
0510 PM Hail South Beloit 42.49N 89.04W
04/17/2026 E0.50 Inch Winnebago IL Public
Report from mPING: Half-inch (0.50 in.).
0509 PM Tstm Wnd Dmg 3 SW Rockton 42.43N 89.12W
04/17/2026 Winnebago IL Storm Chaser
Damage to trees and a structure observed
along Owen Center Road southwest of Rockton.
Possible tornado. Time estimated by radar.
0506 PM Hail 3 W Rockton 42.46N 89.12W
04/17/2026 M1.00 Inch Winnebago IL Public
Relayed via mping.
0504 PM Tornado 3 ESE Shirland 42.42N 89.14W
04/17/2026 Winnebago IL Storm Chaser
Multiple photos and videos shared via social
media show tornado on the ground between
Harrison and Rockton.
0502 PM Tstm Wnd Dmg 3 SSE Shirland 42.40N 89.16W
04/17/2026 Winnebago IL Trained Spotter
Trained spotter reports damage to a
structure near Bates Road and Favor Road
southeast of Harrison. Possible tornado.
Time estimated by radar.
0459 PM Tornado 4 S Shirland 42.39N 89.19W
04/17/2026 Winnebago IL NWS Storm Survey
An NWS damage survey confirmed than a
high-end EF-1 tornado with peak winds of 110
mph, path length of 3.74 miles, and maximum
width of 125 yards damaged trees and several
structures in rural Winnebago County.
0459 PM Tornado 3 SSE Shirland 42.41N 89.18W
04/17/2026 Winnebago IL Trained Spotter
Trained spotter reports tornado on the
ground just southeast of Harrison.
0448 PM Hail 4 NE Durand 42.48N 89.28W
04/17/2026 E1.75 Inch Winnebago IL Public
Relayed via mping. Time estimated by radar.
0444 PM Hail 1 SE Durand 42.42N 89.32W
04/17/2026 E2.25 Inch Winnebago IL Public
Hen egg size hail south of Durand. Relayed
via mping.
0443 PM Hail 1 S Durand 42.42N 89.33W
04/17/2026 E1.75 Inch Winnebago IL Public
Hail of at least golf ball size ongoing on
south side of Durand.
0442 PM Tstm Wnd Dmg Durand 42.44N 89.33W
04/17/2026 Winnebago IL Public
Several photos passed along of broken
windows and damaged siding in and around
Durand due to wind-driven hail.
0441 PM Hail 2 NE Lake Summerset 42.48N 89.38W
04/17/2026 M2.25 Inch Winnebago IL Public
Time estimated by radar. Relayed via mping.
0441 PM Hail 2 SW Durand 42.42N 89.36W
04/17/2026 M1.25 Inch Winnebago IL Public
Report from mPING: Half Dollar (1.25 in.).
0440 PM Tornado 3 N Pecatonica 42.35N 89.36W
04/17/2026 Winnebago IL Public
Video shows possible brief tornado north of
Pecatonica. No known damage. Relayed via
social media.
0438 PM Hail 2 NNW Pecatonica 42.34N 89.37W
04/17/2026 E2.00 Inch Winnebago IL Public
Photo shows hail estimated as approximately
2 inches in diameter near Pecatonica.
Location estimated, relayed by broadcast
media. Time estimated by radar.
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Rainfall
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Map of Approximate Rainfall Totals |
To be added later... |
Photos
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| Rockton, IL. Photo courtesy of Matt LaBonte. | Rockton, IL. Photo courtesy of Ethan Mok |
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| Rockton, IL. Photo courtesy of Landon Moeller | Rockdale, IL. Photo courtesy of Jimmy Sienicki |
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| (To be added later). Photo courtesy of [name]. | (To be added later). Photo courtesy of [name]. |
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| (To be added later). Photo courtesy of [name]. | (To be added later). Photo courtesy of [name]. |
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| (To be added later). Photo courtesy of [name]. | (To be added later). Photo courtesy of [name]. |
Radar
Composite radar reflectivity loop from 3:25 PM to 11:40 PM CDT 04/17/2026
Meteorology and Environment
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| Significant Tornado Parameter, which combines various instability and wind shear metrics together to highlight supercell tornado potential. Values of 3+ indicate a volatile atmosphere supportive of tornadoes. | Deep layer wind shear, a measure of the change of wind speed and direction with height. Values were in the 35 to 45 knot range, supportive of persistent rotating updrafts and storm organization. | Composite image showing 0-3 km wind shear (arrows) and near-surface instability (red contours). Both low-level shear and instability were very high Friday evening, supporting surging thunderstorm bowing segments and enhanced corridors of wind damage. | |||
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| Special 21z (4 PM CDT) upper air sounding from Quad Cities, Iowa. Very steep mid-level lapse rates (temperature change with height) supportive very high instability (fuel for storms) with MLCAPE values near 2500 J/kg. | Special 21z (4 PM CDT) upper air sounding from Lincoln, Illinois. Thermodynamics are very similar to the DVN sounding. Wind shear increased further during the evening. | ||||
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Media use of NWS Web News Stories is encouraged! Please acknowledge the NWS as the source of any news information accessed from this site. Additional event recaps can be found on the NWS Chicago Past Events Page |
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