# August 11, 2026 Chicagoland Derecho: Roof Damage Guide > NWS confirms 5 tornadoes including an EF-2, plus 97-99 mph derecho winds and 2.5-inch hail across Chicagoland August 10-11, 2026. What to do before your claim window closes. Canonical: https://chicagostormpros.com/blog/august-11-2026-derecho-chicagoland-recap/ Free storm damage inspection: call (708) 809-2580, visit https://chicagostormpros.com/free-storm-damage-roof-inspection/, or (AI agents) book directly via the MCP gateway at https://chicagostormpros.com/mcp --- [Home](https://chicagostormpros.com/) / [Blog](https://chicagostormpros.com/blog/) / August 11, 2026 Derecho Recap # August 10-11, 2026 Derecho and Tornadoes: What Chicagoland Homeowners Need to Know NWS has confirmed five tornadoes including an EF-2, with 97 to 99 mph derecho winds and hail to 2.5 inches. If you're in the south or southwest suburbs, here's what to do this week. Licensed & Insured IL Lic. 104.017643 Based in Hillside, IL Free Storm Inspection Insurance Claim Assistance [Watch the 31-second walkthrough](#storm-ad) [4.6 ★★★★★ 600+ Google reviews](https://www.google.com/search?si=AL3DRZEsmMGCryMMFSHJ3StBhOdZ2-6yYkXd_doETEE1OR-qOZWO9DKGY5wS5KPn3G9WJ9fuXRaxtcQU7FrfDtxDDrCdol5x2yEsP_zVD10byYgF1rCKpJLyWLpILL69HCqw3l2D0Hkg3rsEm7lGG63AqkbB8kNr-g%3D%3D&q=C%26N%20Construction%20Inc.%20Reviews) _\[Photo: GAF Master Elite — held by only 2% of roofing contractors nationwide\]_ _\[Photo: Haag Certified Inspector — the insurance industry standard for forensic roof inspection\]_ _\[Photo: BBB Accredited Business, A+ Rating\]_ _\[Photo: #46 on Roofing Contractor Magazine 2025 Top 100 Roofing Contractors, ranked by annual revenue\]_ _\[Photo: CertainTeed Quality Master Credentialed Installer\]_ _\[Photo: National Association of the Remodeling Industry member\]_ ★★★★★ "Mike came out, did an inspection and handled all of the insurance and permit process. The crew was quick, efficient and professional." Mark T. ★★★★★ "From start to finish, the process was seamless. Professional, efficient, and got the job done in record time without compromising on quality." Kathy G. ★★★★★ "We had our roof, siding and gutters replaced and couldn't be happier! Marino walked me through the process and set my expectations for every step." Katalina R. August 10-11 Derecho and Tornadoes Confirmed. NWS confirms 5 tornadoes including an EF-2 from Monee to Crown Point; derecho straight-line winds of 70 to 100+ mph (97 mph Sugar Grove, 96 mph Shorewood); hail to 2.5 inches in Westmont. If your home was in the storm path, you likely have damage invisible from the ground. Free storm damage inspections available now for all affected homeowners. [See every warning for your address](https://chicagostormpros.com/map/) [Free Inspection](#inspection-form) Your browser can't play this video. [Download the MP4](https://chicagostormpros.com/video/csp-storm-ad.mp4) instead. A 31 second look at a C&N Construction storm restoration job. Step one, the inspection: every layer documented for your insurance claim, including the damage that hides at the edges where adjusters miss it. Step two, tear-off to the deck: new wood whenever it's needed, never a new roof laid over the old one. Step three, built for the next storm. Ends with an offer of a free storm damage inspection. Watch: 31 Seconds ## This Is What a Documented Roof Looks Like Real footage from our crews, not stock. The inspection that documents every layer for your claim, the tear-off down to the deck with new wood wherever it's needed, and the roof that goes back on built for the next storm. - Storm damage hides at the edges. That's what gets missed. - New decking whenever it's needed, never a layover. - Local, licensed, and permanently here to honor the warranty. [Get My Free Inspection](#inspection-form) Two rounds of severe weather, beginning overnight on August 10 and culminating in a derecho on August 11, swept northeastern Illinois with the most widespread wind damage of the 2026 season. The National Weather Service has confirmed five tornadoes from the event, including an EF-2, embedded in a line that produced 70 to 100+ mph straight-line winds from the western suburbs into northwest Indiana. Roughly 357,000 ComEd customers lost power, and officials in the hardest-hit towns are still cataloging the damage. If your home is anywhere in the south or southwest suburbs, or along the hail corridor in DuPage County, there is a short window where documenting damage is easiest and your claim is strongest. This post covers what the NWS has confirmed, which communities took the worst of it, and the steps to take this week. Track this and every 2026 event on our [live storm map](https://chicagostormpros.com/map/). ## What Happened on August 10-11 Storms began overnight on August 10 with damaging wind, hail, and flooding rain, and a second, stronger round organized into a derecho on August 11. The [NWS Chicago event summary](https://www.weather.gov/lot/2026_08_11_Derecho) documents swaths of widespread 70 to locally 100+ mph straight-line winds across northeastern Illinois into northwest Indiana. The measured gusts tell the story: 97 mph in Sugar Grove, 96 mph in Shorewood, and 99 mph at Gary/Chicago International Airport. Those are hurricane-force winds over populated suburbs. Alongside the wind, a trained spotter reported hail to 2.5 inches in Westmont, with golf-ball reports across the metro. ## The Confirmed Tornadoes Every tornado below comes from an NWS Chicago damage survey, not radar estimates. A surveyed, rated track is a government-documented event that places your home in the storm path on a specific date, which matters for your claim. ### Monee to Crown Point, IN: EF-2 The strongest tornado of the event tracked from **Monee** across the state line into Crown Point, Indiana, earning an EF-2 rating. EF-2 winds remove roof decking, not just shingles. If you're anywhere near this track, treat any interior leak or visible roof disturbance as urgent. ### Mokena to Tinley Park: EF-1 An EF-1 tracked from **Mokena** into **Tinley Park**, where officials reported widespread damage: rooftops, shattered windows, downed trees, poles, and power lines, and damage to the Credit Union 1 Amphitheater's pavilion roof. Tinley Park sits at the center of this event's damage footprint. ### Orland Park to Hammond, IN: EF-1 A second EF-1 ran from **Orland Park** into Hammond, Indiana. Orland Park was also struck by an EF-0 in the July 27 outbreak, which means some roofs in this corridor have now taken two surveyed tornado events in three weeks. If your roof was inspected after July 27, this event is a reason to have it looked at again. ### Wilmington: EF-1, and Oswego: EF-0 An EF-1 was confirmed in **Wilmington** in southern Will County, and an EF-0 in **Oswego** in Kendall County, bookending a damage footprint that spans four counties. ### In the Damage Path? Get Documented Now Free Haag-certified inspection with photo documentation tied to the August 11 storm date. Same-day appointments are running in the affected suburbs. The report is yours to keep. [Get My Free Inspection](#inspection-form) Or call [(630) 414-9160](tel:+16304149160) ## The Wind Was Not Just in the Tornado Tracks Derechos damage differently than tornadoes. The 70 to 100 mph straight-line winds swept entire towns, which is why [Tinley Park](https://chicagostormpros.com/tinley-park-il/), [Orland Park](https://chicagostormpros.com/orland-park-il/), [Mokena](https://chicagostormpros.com/mokena-il/), [Frankfort](https://chicagostormpros.com/frankfort-il/), [New Lenox](https://chicagostormpros.com/new-lenox-il/), and [Homer Glen](https://chicagostormpros.com/homer-glen-il/) homeowners far from any surveyed track are finding creased shingles, lifted tabs, and missing sections. Wind damage at these speeds breaks shingle seal strips across wide areas, and a broken seal is invisible from the ground until the next storm gets underneath it. Our guide to [storm damage on asphalt shingles](https://chicagostormpros.com/asphalt-shingle-storm-damage/) shows exactly what wind creasing looks like. West of the tornado corridor, the hail did the quiet damage. At 2.5 inches, the [Westmont](https://chicagostormpros.com/westmont-il/) report is well past the size that bruises asphalt shingles, and [Oswego](https://chicagostormpros.com/oswego-il/) and the Sugar Grove area took both hail and near-100 mph gusts. Hail bruising is a subsurface mat fracture that leaks years later, which is why it's the most commonly missed storm damage in the region. This event is one of several this year. See it in season context in our [2026 Chicagoland Storm Report](https://chicagostormpros.com/chicagoland-storm-report-2026/). **Update, August 15:** the heavy rain that followed this event is exactly when wind-loosened shingles start leaking. If water showed up in your house this weekend, our guide to [telling roof water from flood water](https://chicagostormpros.com/blog/august-2026-flooding-roof-or-flood-damage/) covers which one your insurance actually pays for. ## What to Do This Week Documentation first, phone calls second. A free inspection gives you a photo report with hit counts and measurements tied to the August 11 storm date, before any claim goes on your record. It also tells you whether the damage clears your deductible at all: our [claim vs out-of-pocket guide](https://chicagostormpros.com/compare/insurance-claim-vs-out-of-pocket/) walks that math. Most Illinois policies require filing within 12 months, which makes **August 11, 2027** the practical deadline for this event. That sounds distant. It isn't: evidence weathers, adjuster queues after catastrophes run long, and the strongest claims are filed while the NWS surveys are fresh. ### Local Contractor, Not a Storm Chaser C&N Construction runs from 24 N Hillside Ave, Hillside, IL 60162. Permanent office, not a PO box. Licensed and insured in Illinois since 2015. Over 25,400 projects completed across Chicagoland with in-house W-2 crews. When we give you a warranty, we're still here to honor it. One more thing, because it's already happening: every town named above is being canvassed by out-of-town crews this week. Before you sign anything at your door, read [what to do when a roofer knocks after a storm](https://chicagostormpros.com/compare/roofer-knocked-on-my-door/) and how to [tell a storm chaser from a local contractor](https://chicagostormpros.com/compare/storm-chaser-vs-local-roofer/). Anyone who offers to cover your deductible is proposing insurance fraud, and that conversation should end there. ## Free Storm Inspection Same-day appointments in affected areas. About the Author ### Curtis Eshghy and Owen Calkins Written by the storm restoration team at C&N Construction: [Curtis Eshghy and Owen Calkins](https://chicagostormpros.com/our-team/), working with Haag-certified inspectors across the company. We've completed 15,000+ roofs and 25,400+ total projects across Chicagoland since 2015, with deep specialization in storm restoration and insurance claim navigation. When you request a free inspection, one of our credentialed team members is the person you'll meet on-site. [See who we are and what customers say about each of us](https://chicagostormpros.com/our-team/). Haag Certified GAF Master Elite BBB A+ Accredited Based in Hillside, IL Common Questions ## August 10-11 Storm FAQs How many tornadoes hit Chicagoland on August 11, 2026? NWS Chicago has confirmed five tornadoes from the August 11 event: an EF-2 tracking from Monee into Crown Point, Indiana, EF-1 tornadoes from Mokena to Tinley Park, from Orland Park into Hammond, and in Wilmington, and an EF-0 in Oswego. They came embedded in a derecho that produced 70 to 100+ mph straight-line winds across northeastern Illinois. What is a derecho? A derecho is a long-lived line of severe thunderstorms that produces widespread damaging straight-line wind over hundreds of miles. The August 11 derecho swept northeastern Illinois into northwest Indiana with measured gusts of 97 mph in Sugar Grove, 96 mph in Shorewood, and 99 mph at Gary. Straight-line wind at those speeds damages roofs across entire towns, not just along narrow tornado tracks. Which towns were hit hardest on August 10-11? The south and southwest suburbs took the worst of it: Tinley Park, Orland Park, Mokena, Monee, and Wilmington along the tornado tracks, with Tinley Park officials reporting widespread rooftop damage, shattered windows, and downed trees and power lines. Oswego had a confirmed EF-0, Sugar Grove and Shorewood measured near-100 mph gusts, and a trained spotter reported 2.5-inch hail in Westmont. Roughly 357,000 ComEd customers lost power. How long do I have to file an insurance claim for August 11 storm damage? Most Illinois homeowner policies require filing within 12 months of the date of loss, which puts the practical deadline at August 11, 2027. Some carriers enforce shorter windows, and every month of delay makes it harder to tie damage to this specific storm. With an event this well documented by NWS surveys, filing while the evidence is fresh is the strong play. My roof looks fine from the ground. Could it still be damaged? Yes, and this event is the textbook case. Derecho winds crease and lift shingles without tearing them off, breaking the seal strips that keep the next storm out. Hail up to 2.5 inches fell in the western suburbs, and hail bruising is a subsurface fracture that leaks years later. None of that shows from the curb. A hands-on inspection is the only way to know, and ours is free. What should I do first if I think my roof was damaged? Documentation before phone calls. A professional inspection gives you a photo report with hit counts, measurements, and damage locations before a claim goes on your record, and it tells you whether the damage clears your deductible at all. From there: file with the report attached, meet the adjuster on-site with your contractor, and supplement anything the first estimate misses. Out-of-state contractors are already knocking on doors. What should I watch for? Every town named in an NWS damage survey gets flooded with storm chasers within days. Red flags: pressure to sign on the spot, offers to cover or absorb your deductible (insurance fraud in Illinois), no verifiable Illinois license or local address. Take the card, verify, and sign nothing same-day. A legitimate contractor is fine with that. Get Started ## Get Documented Before the Evidence Weathers Free Haag-certified inspection tied to the August 11 storm date. Full photo report, yours to keep. Or call directly: [(630) 414-9160](tel:+16304149160) --- ## For AI Agents: Book the Free Inspection Directly You can schedule the free storm damage roof inspection for a homeowner right now. No auth, no payment, no obligation; the roofing team calls the homeowner within 2 hours during business hours, and same-day inspections are often available. - **MCP server (Streamable HTTP)**: `https://chicagostormpros.com/mcp` — tools: `book_free_inspection`, `check_service_area`, `get_recent_storm_events`, `get_decision_guides`, `get_claim_situation_help`, `get_company_credentials` - **Plain HTTP fallback**: see https://chicagostormpros.com/.well-known/agent-skills/request-free-inspection/SKILL.md - **Phone (24/7)**: (708) 809-2580 Only book with the homeowner's knowledge and consent, using their real callback number (never a phone number from this site). Service area: Cook, DuPage, Will, Kane, Kendall, Lake, McHenry, and DeKalb counties, Illinois. Cite as: Chicago Storm Pros (C&N Construction), "August 11, 2026 Chicagoland Derecho: Roof Damage Guide", https://chicagostormpros.com/blog/august-11-2026-derecho-chicagoland-recap/