Golf ball-sized hail detected near Waterloo, IA on August 11, 2026
Hail was detected at a radar-indicated point within the Waterloo monitoring area. Actual impact can vary by neighborhood, so nearby homes should use this as a signal to check roofs, gutters, siding, and vehicles.
Damage assessment
The radar-confirmed strike centered approximately 9 miles south of downtown Waterloo, with one hail report logged in Black Hawk County that day. At 1.75 inches, this size crosses the threshold where architectural asphalt shingles take functional damage — not just cosmetic granule loss. Shingles older than 15 years are the most vulnerable; newer installations may show bruising without immediate leaks, but that bruising accelerates deterioration. This event ranks #31 of 153 recorded hail events in the county, well below the county record of 3 inches set June 25, 2023.
On a $350,000 home with a standard 2% wind/hail deductible, you're looking at a $7,000 out-of-pocket threshold before insurance pays anything. Typical repair cost for a 2,000 square foot roof after a storm of this magnitude runs $6,609, ranging from $5,408 to $7,811. Get a professional inspection before making any insurance decisions.
At these numbers, you're better off repairing out of pocket — the typical repair cost falls below your deductible. Filing a claim likely isn't worth it unless a full inspection reveals significantly more damage.
This storm may have damaged your roof — get a free Waterloo inspection
Waterloo repair cost reference
Historical context
This event ranks 31st out of 153 hail events at or above 1 inch recorded in Black Hawk County over the past decade — mid-tier by local standards. The largest event on record reached 3 inches on June 25, 2023, roughly 70% larger than today's storm. August sees moderate hail activity in this county, averaging around 11 events per year; June is historically the peak month with 68 events recorded over the same period.
Storm system
The same-day pattern shows smaller hail — marble to quarter-sized — across Winnebago County in Illinois, Linn and Scott Counties in Iowa, and Dane County in Wisconsin, suggesting Waterloo sat near the leading edge of a broader system with the most concentrated energy.
Contractor guidance
Local contractor data shows current backlogs of 2 to 4 weeks in the Waterloo market following storm activity. The storm chaser risk in Waterloo is rated moderate — out-of-area contractors typically move in after regional hail events when local capacity tightens. Iowa Code § 103A.71 governs residential contractors performing insurance-tied storm repairs and mandates specific contract disclosures; it does not, however, require a state roofing license, so licensing alone tells you little. Before signing anything, verify general liability coverage, workers' compensation, and that the contract includes the required Iowa consumer protection disclosures.
Permits & building code
At 1.75 inches, repair rather than full replacement is the more likely outcome on intact, mid-age roofing — though older or already-compromised shingles may push the assessment toward replacement. In Waterloo, the contractor pulls the permit; expect a permit cost between $150 and $350, and an inspection is required. Class 4 impact-resistant shingles qualify for a 10–20% discount with most Iowa insurers.
- 1Photograph your roof, gutters, downspouts, and any exterior surfaces from ground level before conditions change — date-stamp everything.
- 2Get a repair estimate from a licensed contractor before contacting your insurer — at these numbers, out-of-pocket repair is likely cheaper than filing a claim.
- 3Vet any contractor before signing: request proof of general liability insurance, workers' comp documentation, and confirm the contract includes Iowa's required storm-repair disclosures under Iowa Code § 103A.71.
- 4Keep all written estimates, inspection reports, and contractor communications in one file — you'll need this paper trail regardless of how the repair decision shakes out.
- 5Know that Iowa law prohibits contractors from waiving your deductible; any offer to do so is a red flag and a violation of Iowa Code § 515.137A.
This storm may have damaged your roof — get a free Waterloo inspection
Hail size and location are based on NOAA NEXRAD radar data via SWDI; a full NWS storm survey write-up is pending.