Pilot Index / Illinois / Aug 11, 2026

Preliminary

Storms in Illinois on Aug 11, 2026

42 published severe reports across Illinois on Aug 11, 2026.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 1. Wind reports: 32. Tornado reports: 9.

The table and map show 40 of 42 reports.

TimeWhatSize or SpeedWhereDetails
Aug 11, 2026, 8:56 AM CDTWind60 mphStockton
Record
  • Aug 11, 2026, 8:56 AM CDT. Wind, 60 mph, Stockton. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c7fb5d0d43a33ba2ec99895c75349d6068c1aff0d9ac74a773aa768c5fdfb9d2.
Aug 11, 2026, 9:09 AM CDTWind58 mph4 ESE Geneseo
Record
  • Aug 11, 2026, 9:09 AM CDT. Wind, 58 mph, 4 ESE Geneseo. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d186a76020a42a176cf831b157c849dcfd527d3bddec74a57ddbaf67ad646aa8.
Aug 11, 2026, 9:21 AM CDTWind75 mphPolo
Record
  • Aug 11, 2026, 9:21 AM CDT. Wind, 75 mph, Polo. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:cc660fcade7a49d94524beb506d96777f701aeaac0d39e0c5930a80da026b771.
Aug 11, 2026, 10:11 AM CDTWind70 mphSugar Grove
Record
  • Aug 11, 2026, 10:11 AM CDT. Wind, 70 mph, Sugar Grove. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:32df3bf66cd7cd76bd8d1fb57c96121297bf90e6f656d4bb2f4bf3e2c7ad3460.
Aug 11, 2026, 10:11 AM CDTWind85 mph2 WNW Sugar Grove
Record
  • Aug 11, 2026, 10:11 AM CDT. Wind, 85 mph, 2 WNW Sugar Grove. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:db5bcfae700e6963008cd358f560b7331e86be0b054d0f4430eb03376248cb8d.
Aug 11, 2026, 10:13 AM CDTWind97 mph1 SE Sugar Grove
Record
  • Aug 11, 2026, 10:13 AM CDT. Wind, 97 mph, 1 SE Sugar Grove. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0fe71f824c01db43afb7e5fd04bcdf8910156b31b07087e0200d2f337c44d733.
Aug 11, 2026, 10:14 AM CDTWind66 mph1 NE Lily Lake
Record
  • Aug 11, 2026, 10:14 AM CDT. Wind, 66 mph, 1 NE Lily Lake. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5f74ed6166fd233fc2fb9f0ed38bbc683247b4251e0ff3d30715d574a16a2796.
Aug 11, 2026, 10:14 AM CDTTornado2 W Oswego
Record
  • Aug 11, 2026, 10:14 AM CDT. Tornado, 2 W Oswego. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8fb2334f9f369ef3b396ae492e2964eae835cd2b800875544e91c491a281571a.
Aug 11, 2026, 10:18 AM CDTWind64 mph2 SE Yorkville
Record
  • Aug 11, 2026, 10:18 AM CDT. Wind, 64 mph, 2 SE Yorkville. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:99112cb065303aa409323430c944bdeaee07a7641c56831043e02c00ac1c0ac5.
Aug 11, 2026, 10:19 AM CDTWind60 mph1 SE Seneca
Record
  • Aug 11, 2026, 10:19 AM CDT. Wind, 60 mph, 1 SE Seneca. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:6d571c6b37fff8680f306851edb250642fc0d4309352d9f93d6d5df9f7ed90e5.
Aug 11, 2026, 10:20 AM CDTTornado5 E Seneca
Record
  • Aug 11, 2026, 10:20 AM CDT. Tornado, 5 E Seneca. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:cfc6ff2ec7531b67ccd8c780056476aa6675d5b14b254b580beb766bd9bce53a.
Aug 11, 2026, 10:21 AM CDTWind65 mph1 ENE Oswego
Record
  • Aug 11, 2026, 10:21 AM CDT. Wind, 65 mph, 1 ENE Oswego. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:66a4254114db4d1e33df12937721286370d88ff2cb3bcfbef48142115111aa47.
Aug 11, 2026, 10:23 AM CDTTornado3 N Morris
Record
  • Aug 11, 2026, 10:23 AM CDT. Tornado, 3 N Morris. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:48a81aa3fdca3611e6c0b998661a5a045e9b243be59c0134f92e0503533b24ff.
Aug 11, 2026, 10:24 AM CDTWind89 mph3 SE Batavia
Record
  • Aug 11, 2026, 10:24 AM CDT. Wind, 89 mph, 3 SE Batavia. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ad3ec5f4c5385f946f8934a47ea66989d24f61c63d69f54802d117af88ec9243.
Aug 11, 2026, 10:28 AM CDTWind80 mph2 SSE Plainfield
Record
  • Aug 11, 2026, 10:28 AM CDT. Wind, 80 mph, 2 SSE Plainfield. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4a1bb5e962e5ddfcc689a96ac71899ce220f6f4952c9d3d1a7a3b6e1baed038f.
Aug 11, 2026, 10:28 AM CDTWind85 mph2 NW Plainfield
Record
  • Aug 11, 2026, 10:28 AM CDT. Wind, 85 mph, 2 NW Plainfield. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b5c71df8b29df919c72fee83d2d66bf2f6502bcff7cb926a1db7577dfec7bb2a.
Aug 11, 2026, 10:28 AM CDTWind88 mph2 NW Plainfield
Record
  • Aug 11, 2026, 10:28 AM CDT. Wind, 88 mph, 2 NW Plainfield. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b85e68223454d7b090d24845cd880c01d5a999db8db70db7f14dd6e5acbe8772.
Aug 11, 2026, 10:28 AM CDTWind80 mph2 NNW Warrenville
Record
  • Aug 11, 2026, 10:28 AM CDT. Wind, 80 mph, 2 NNW Warrenville. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d6f0f8effeec984ec493a9b60dfe87689ee239606913ad76323c283f0a3cf371.
Aug 11, 2026, 10:30 AM CDTWind62 mph2 NW Plainfield
Record
  • Aug 11, 2026, 10:30 AM CDT. Wind, 62 mph, 2 NW Plainfield. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:7b44d6141f8647746f56aa1f3f160ea68972ece1cddc1ae8e18c8697b2580c26.
Aug 11, 2026, 10:31 AM CDTWind96 mph2 NNW Shorewood
Record
  • Aug 11, 2026, 10:31 AM CDT. Wind, 96 mph, 2 NNW Shorewood. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8cf2a2319a02469d09191fd0847805d4278ffcf8b587db4e8dc76cd815ad814d.
Aug 11, 2026, 10:34 AM CDTWind58 mphNWS Chicago-Romeoville
Record
  • Aug 11, 2026, 10:34 AM CDT. Wind, 58 mph, NWS Chicago-Romeoville. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d9e950243b9282f4556724c703366e05c16b13ac62718402fa8417b27a33051d.
Aug 11, 2026, 10:35 AM CDTWind70 mph1 W Braidwood
Record
  • Aug 11, 2026, 10:35 AM CDT. Wind, 70 mph, 1 W Braidwood. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:383288ab84e779ec5f8b8349137e14e85c41fa20c8a55b87c6e471953dff3321.
Aug 11, 2026, 10:37 AM CDTWind65 mph2 NNW Mazon
Record
  • Aug 11, 2026, 10:37 AM CDT. Wind, 65 mph, 2 NNW Mazon. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:3d2295b8934f6be5f98c67be48dcb74fc156554dc5a8ecbd56e65eb2b7574db0.
Aug 11, 2026, 10:37 AM CDTTornado1 WNW Wilmington
Record
  • Aug 11, 2026, 10:37 AM CDT. Tornado, 1 WNW Wilmington. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c64d2f9df1ed5a1dbd69d64535deec559cd04639985eeaa86167b173fe7bbdb1.
Aug 11, 2026, 10:38 AM CDTWind70 mph2 N Lemont
Record
  • Aug 11, 2026, 10:38 AM CDT. Wind, 70 mph, 2 N Lemont. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a0cf02d8bacd41e536ff68f8a9d3c2e2b55485feeb1af1ae2dfa28ab2caf86b2.
Aug 11, 2026, 10:39 AM CDTTornado3 N New Lenox
Record
  • Aug 11, 2026, 10:39 AM CDT. Tornado, 3 N New Lenox. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:1a9626c189ff13e10f6ff519ed0a47e5173bc6017e1ef9bdaba97e70a8ed1ab2.
Aug 11, 2026, 10:39 AM CDTWind70 mphCoal City
Record
  • Aug 11, 2026, 10:39 AM CDT. Wind, 70 mph, Coal City. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:a133308203ac7adebcf9aaf6b3b82d11d051cb38ba3a265666f69ba927fd0af0.
Aug 11, 2026, 10:40 AM CDTWind88 mph2 NW Plainfield
Record
  • Aug 11, 2026, 10:40 AM CDT. Wind, 88 mph, 2 NW Plainfield. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ddee68aeaed1265cb51c3a4d61aad9952b93e6ad0cb14fc17c3402e097138c74.
Aug 11, 2026, 10:41 AM CDTTornado3 SE Homer Glen
Record
  • Aug 11, 2026, 10:41 AM CDT. Tornado, 3 SE Homer Glen. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c9450e8307c7c7024df7129b64828bb0145f40f62b0ce788efc06c8773b733d8.
Aug 11, 2026, 10:42 AM CDTWind75 mphFrankfort
Record
  • Aug 11, 2026, 10:42 AM CDT. Wind, 75 mph, Frankfort. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:daf824303aabfc913d208842cf3996f7f89f3bb348d6560372c1d2df1f7f5410.
Aug 11, 2026, 10:43 AM CDTTornado5 SSW Frankfort
Record
  • Aug 11, 2026, 10:43 AM CDT. Tornado, 5 SSW Frankfort. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:fbfaf6e6821f9c99f4f4ff797f64c6f0cbfecd2b5080de729895efcd89f74fa8.
Aug 11, 2026, 10:52 AM CDTWind87 mphPeotone
Record
  • Aug 11, 2026, 10:52 AM CDT. Wind, 87 mph, Peotone. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9b2f13f646dcabf778e5ed93e3cf203b6959197bf8c24e27a253e1b542dd55ad.
Aug 11, 2026, 10:55 AM CDTTornado1 ESE Homewood
Record
  • Aug 11, 2026, 10:55 AM CDT. Tornado, 1 ESE Homewood. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0743c09554d1db4d91ebeb8b8c2f83be40519f84a85924f6aa0c86de735639c4.
Aug 11, 2026, 10:59 AM CDTWind91 mph3 NE Bradley
Record
  • Aug 11, 2026, 10:59 AM CDT. Wind, 91 mph, 3 NE Bradley. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b0fb05741c245ca1e72d9a5c887cc3d71195944167fcae16aaddfef0e6b941e2.
Aug 11, 2026, 11:00 AM CDTWind60 mph3 NE Navy Pier
Record
  • Aug 11, 2026, 11:00 AM CDT. Wind, 60 mph, 3 NE Navy Pier. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0c047e62e8675924f7b5347dddf414455b81ede5d0520469db92eeb0fb858fda.
Aug 11, 2026, 11:01 AM CDTWind91 mph2 E Mokena
Record
  • Aug 11, 2026, 11:01 AM CDT. Wind, 91 mph, 2 E Mokena. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9a5fb6b1b36dba99c5acd0be4fa53573a795cec931296ed9830305cd429a7ee4.
Aug 11, 2026, 11:04 AM CDTWind81 mph1 SSE South Barrington
Record
  • Aug 11, 2026, 11:04 AM CDT. Wind, 81 mph, 1 SSE South Barrington. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:34611a6d5376d5d8e167ded38f6a8c3030a978fe79c8431269a3d86424444923.
Aug 11, 2026, 11:09 AM CDTWind70 mph1 W Oak Lawn
Record
  • Aug 11, 2026, 11:09 AM CDT. Wind, 70 mph, 1 W Oak Lawn. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c7b027df48be1814a30616ab7092ac0a87322ffd3e1b3a01fb8091232756af9f.
Aug 11, 2026, 11:17 AM CDTWind65 mph2 NNW Mazon
Record
  • Aug 11, 2026, 11:17 AM CDT. Wind, 65 mph, 2 NNW Mazon. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5007592f1e0abae73d6e288acaed05496e1fee28effd82716c1a6052a0df99e6.
Aug 11, 2026, 11:23 AM CDTWind61 mph2 NNE Wilmington
Record
  • Aug 11, 2026, 11:23 AM CDT. Wind, 61 mph, 2 NNE Wilmington. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:86cbf186c6e4a551fdec5d26943a6cba2419ab50fa260051b788b5b081031fea.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.