Tornadoes · United States · Illinois · 2024

EF0 tornado, Western Springs to Jackson Park, Illinois, July 14, 2024

From Western Springs to Jackson Park, this EF0 tornado ran 3.6 miles across Cook County on July 14, 2024, touching down at 10:40 PM CDT and reaching 200 yards wide. It killed nobody.

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
July 14, 2024
Touchdown
10:40 PM CDT (03:40 UTC)
Lifted
10:44 PM CDT (03:44 UTC)
On the ground
4 minutes
Path length
3.6 miles (5.8 km)
Path width
200 yards (183 m)
Deaths
0
Injuries
0
County
Cook County
Touchdown point
41.768, -87.634
Lift-off point
41.781, -87.568
Record number
2407142140-01

The damage survey

51 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 80 mph.

  • North side of track about 300 ft north of 69th street
  • A number of large branches and uprooted trees. Circulation went out over the lake
  • North edge just north of 52nd st
  • Tree split and fell onto a fence and adjacent home at this location.

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

Thunderstorms developed during the evening of July 14th and continued into the early morning of July 15th, as they moved across all of northern and central Illinois. Nine tornadoes occurred, along with widespread wind damage. In the City of Chicago, there were 2,810 tree emergency calls and 1,430 calls for tree debris. Localized flash flooding also occurred, for a second night in a row in the Rockford area.

A tornado with estimated peak winds of 75 mph touched down near 41st Street and Poplar Place in La Grange and moved northeast through Brookfield, Riverside and Berwyn before ending just northeast of the intersection of Cermak Road and Laramie Road. Damage along the tornado's path was entirely confined to trees.

A tornado with estimated peak winds of 85 mph began on the northeast side of Midway Airport and moved northeast across West Elsdon, Gage Park, New City, and Fuller Park where it primarily caused tree and minor roof damage. The tornado crossed Interstate 90/94 producing additional tree damage as it moved through the Grand Boulevard and Kenwood neighborhoods. Numerous large tree limbs and several trees were blown down near 48th Street and State Street. The tornado crossed Lake Shore Drive and then moved out over Lake Michigan as a waterspout.

A tornado with estimated peak winds of 80 mph began near Harvard Avenue between 69th Street and 70th Street near the Englewood neighborhood of Chicago. The tornado moved northeast crossing Interstate 94 then crossed Interstate 90, where a railroad car was reported to be knocked over. A roof was damaged on a building near 68th Street and Rhodes Avenue with debris scattered onto the street. The tornado continued across the Woodlawn and Jackson Park neighborhoods of Chicago where numerous trees were damaged, some snapped, some uprooted. Minor roof damage was also reported. A large tree was uprooted and fell onto two houses in the 6600 block of South University Avenue. A large tree was snapped and fell onto a roadway near Marquette Road and Kimbark Avenue. The tornado moved out over Lake Michigan as a waterspout near the 63rd Street Beach.

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

The warnings

2 minutes of warning. NWS LOT issued a tornado warning for this county at 03:38 UTC, 2 minutes before the tornado touched down, in force until 03:47 UTC.

The county was under a severe thunderstorm watch, issued at 22:55 UTC and running to 04:52 UTC.

Issued (UTC)ExpiredProductOffice
20:03 UTC07:02 UTCFlood WatchLOT
22:55 UTC04:52 UTCSevere Thunderstorm WatchLOT
03:03 UTC04:00 UTCSevere Thunderstorm WarningLOT
03:06 UTC04:00 UTCSevere Thunderstorm WarningLOT
03:17 UTC06:15 UTCFlood AdvisoryLOT
03:24 UTC06:18 UTCFlood AdvisoryLOT
03:30 UTC06:30 UTCFlash Flood WarningLOT
03:38 UTC03:47 UTCTornado WarningLOT
04:00 UTC04:20 UTCSevere Thunderstorm WarningLOT
06:23 UTC10:15 UTCFlood 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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 00:59 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

3.7 hours before the tornado, 199 km from the path. July 15, 2024.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2024-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2736 joules per kilogram, CIN -77, lifted condensation level 1296 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 2024-07-15The 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 112 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
2736 J/kg
Mixed-layer CIN
-77 J/kg
Surface CAPE
4096 J/kg
Mixed-layer LCL
1296 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
22 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
320 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8
0-3 km lapse rate
6.7 K/km

Open this sounding in Storm Lab

Lincoln, IL (KILX), 12:00Z

8.3 hours after it, 199 km from the path. July 15, 2024.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2024-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1937 joules per kilogram, CIN -109, lifted condensation level 794 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 2024-07-15The 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 279 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
1937 J/kg
Mixed-layer CIN
-109 J/kg
Surface CAPE
3 J/kg
Mixed-layer LCL
794 m above ground
0-6 km bulk shear
35 kt
0-1 km bulk shear
21 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
381 m²/s²
Significant tornado parameter
0.0
Supercell composite
12.0
0-3 km lapse rate
2.7 K/km

Open this sounding in Storm Lab

The surface observations

Chicago (MDW), 13 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
01:25 UTC180° 5 kt1010.8
01:30 UTC200° 9 kt1010.8
01:35 UTC200° 9 kt1010.8
01:40 UTC190° 8 kt1010.8
01:45 UTC190° 9 kt141010.8
01:50 UTC190° 9 kt1010.8
01:53 UTC8674200° 8 kt1010.5
01:55 UTC200° 8 kt1010.5
02:00 UTC200° 9 kt1010.5
02:05 UTC190° 8 kt1010.5
02:10 UTC200° 10 kt1010.2
02:15 UTC190° 10 kt151009.8
02:20 UTC190° 11 kt1009.8
02:25 UTC200° 11 kt1010.2
02:30 UTC200° 11 kt1010.5
02:35 UTC200° 14 kt1010.5
02:40 UTC200° 13 kt1010.2
02:45 UTC200° 11 kt1010.2
02:50 UTC200° 9 kt1010.2
02:53 UTC8574200° 9 kt171010.2
02:55 UTC200° 11 kt171010.5
03:00 UTC190° 8 kt1010.5
03:10 UTC180° 10 kt1010.2
03:15 UTC190° 8 kt1010.2
03:20 UTC190° 10 kt1010.5
03:21 UTC8574190° 10 kt1010.5TS
03:25 UTC180° 11 kt1010.2
03:35 UTC8072280° 34 kt511013.2+TSRA BR SQ
03:35 UTC 381013.2+RA BR SQ
03:40 UTC 321013.2+RA BR SQ
03:44 UTC7167280° 21 kt391012.2+TSRA BR
03:45 UTC 301011.9+RA BR
03:50 UTC 1011.9+RA BR
03:53 UTC7168290° 19 kt331011.9+TSRA BR
03:55 UTC 221011.5+RA BR
03:58 UTC7067300° 11 kt331011.5+TSRA BR
04:00 UTC280° 11 kt1011.9+RA BR
04:05 UTC290° 7 kt1011.5+RA BR
04:10 UTC 1012.2RA BR
04:14 UTC7168260° 7 kt201011.9TSRA BR
04:15 UTC260° 7 kt1011.9RA BR
04:20 UTC270° 4 kt1011.5-RA BR
04:25 UTC280° 5 kt1011.9-RA BR
04:30 UTC280° 5 kt1011.9-RA
04:35 UTC320° 7 kt1011.5-RA
04:40 UTC320° 9 kt1011.5-RA
04:50 UTC300° 8 kt1011.5-RA
04:53 UTC7168290° 7 kt1011.5-TSRA
04:55 UTC290° 7 kt1011.5-RA
05:00 UTC270° 8 kt1011.9-RA
05:05 UTC270° 5 kt1011.9-RA
05:10 UTC230° 7 kt1011.9-RA
05:15 UTC220° 8 kt1012.2-RA
05:20 UTC220° 5 kt1011.9-RA

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

The radar

The Chicago radar (KLOT), 44 km away, was scanning. The volume nearest the touchdown began at 03:39 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
02:42 UTCTSTM WND DMG2 Ene GenevaKane, ILPublic reported 1 foot diameter tree snapped at its base. Time estimated by radar.
02:48 UTCTSTM WND DMG1 Sse St. CharlesKane, ILroof collapse and roof blown off storage building.
02:54 UTCTSTM WND DMG1 Wsw Dupage AirportKane, ILSeveral trees and corn crops damaged just west of DuPage Airport.
02:55 UTCTSTM WND DMGWest ChicagoDupage, IL14-inch tree branch downed.
02:55 UTCTSTM WND DMGWest ChicagoDupage, IL8 inch tree limb downed.
02:55 UTCTSTM WND DMGWest ChicagoDupage, ILLarge tree limb blown down on Fremont Street.
02:55 UTCTSTM WND GST 70Dupage AirportDupage, ILMeasured wind gust to 70 mph at KDPA ASOS.
02:57 UTCTSTM WND DMG1 Ne West ChicagoDupage, ILroughly 2 foot tree blocking road in 700 block of elmwood.
02:57 UTCTSTM WND DMG1 Nne West ChicagoDupage, IL6-8 inch branch downed in 500 block of elite st.
03:04 UTCTSTM WND DMGWoodridgeDupage, ILNWS employee reported 6 to 12 inch branches down around the Woodridge circle. Time estimated by radar.
03:12 UTCTSTM WND GST 60WoodridgeDupage, ILWind gusts at least 60 mph.
03:15 UTCTSTM WND DMG1 Nw Glen EllynDupage, IL10 inch tree limb downed.
03:15 UTCTSTM WND DMG5 Ese OswegoKendall, ILtree blocking road, stewart and scotch road.
03:23 UTCTORNADO1 Ene Western SpringsCook, ILAn NWS storm survey determined that an EF-0 tornado with maximum winds of 75 mph, path length of 7.4 miles, and maximum width of 300 yards damaged trees.
03:30 UTCRAIN 22 Sse NapervilleDupage, ILin 30 minutes.
03:31 UTCTORNADO1 Wsw Midway AirportCook, ILAn NWS storm survey determined that an EF-0 tornado with maximum winds of 85 mph, path length of 9.6 miles, and maximum width of 300 yards damaged trees and roofs moving offshore onto Lake Michigan. This tornado appeared
03:34 UTCTSTM WND GST 59Midway AirportCook, IL
03:34 UTCTSTM WND GST 603.0 Sw Midway AirportCook, ILMeasured gust to 60 mph.
03:35 UTCTSTM WND DMG1 Nne Greater Grand CroCook, ILLocal media reported roof damage and debris scattered on the street from a building near 68th Street and Rhodes Avenue. Time estimated by radar.
03:35 UTCFLOOD1 N NapervilleDupage, ILPhoto shared to social media shows roadway flooding near Ogden Avenue and Main Street in Naperville.
03:35 UTCFLOOD1 N NapervilleDupage, ILPhoto shared to social media shows street flooding near Ogden Avenue and Main Street in Naperville.
03:40 UTCTSTM WND DMGGrand Blvd. - ChicagoCook, ILNumerous large branches and several trees down in a path from near 48th and State St to east of MLK Dr and 46th St.
03:40 UTCFLASH FLOOD4 Sw NapervilleDupage, ILMultiple public reports of street flooding in southwest Naperville. Relayed via mping.
03:40 UTCTORNADO1 Nw Greater Grand CrosCook, ILAn NWS storm survey determined that an EF-0 tornado with maximum winds of 80 mph, path length of 3.6 miles, and maximum width of 200 yards damaged roofs and trees before moving offshore onto Lake Michigan.
03:44 UTCTSTM WND GST 59Lakeview - ChicagoCook, ILrelayed by broadcast media.
03:45 UTCTSTM WND GST 581 Wnw North Center - ChCook, IL
03:46 UTCFLOODHanover ParkCook, ILMultiple reports of street flooding in Bartlett and Hanover Park. Relayed via mping.
03:52 UTCTSTM WND GST 51Montrose HarborLmz741, IL
03:52 UTCRAIN 0.83.0 Sw Midway AirportCook, ILMidway Airport COOP observer reports 0.8 inches of rainfall in 10 minutes.
03:54 UTCRAIN 2.93 Wsw NapervilleDupage, ILPhoto shared to social media shows rain gauge with about 2.9 inches of rainfall in Naperville. Location estimated.
04:00 UTCFLOOD1 E BartlettCook, IL3 inches of standing water on north ave just west of Rt 20.
04:15 UTCFLASH FLOODWheatonDupage, ILCorrects previous flash flood report from Wheaton. main street between roosevelt and indiana, impassable. approx 10 inch deep water over roadway.

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

This ground now

The live radar over the trackEvery 2024 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are

The other tornadoes of July 14, 2024

13 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 148:58 PM CDTEF0DeKalb, IL3.4100
July 149:28 PM CDTEF1Kane, IL9.0150
July 149:43 PM CDTEF0Kane, IL0.8150
July 1410:23 PM CDTEF0Cook, IL7.4250
July 1410:33 PM CDTEF0Cook, IL8.0300
July 1411:40 PM CDTEF1Marshall, IL0.550
July 1411:42 PM CDTEF1Marshall, IL6.3100
July 1411:48 PM CDTUnratedMarshall, IL0.960
July 1411:48 PM CDTUnratedMarshall, IL0.960
July 1412:02 AM CDTUnratedLaSalle, IL4.2150
July 1412:03 AM CDTUnratedLivingston, IL3.9100
July 1412:06 AM CDTUnratedLivingston, IL1.9225
July 1412:10 AM CDTEF1Marshall, IL0.750

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.