Tornado 4 mi ESE of Riverdale
A brief stovepipe tornado was observed southwest of Riverdale. No known damage to evaluate and no other information available. By National Weather Service policy the tornado is rated EF-U (Unknown).
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A new roof installation covers the decking, underlayment, flashing, ventilation and the roof covering. For new construction it follows framing and sheathing; the roofer coordinates with the builder and the inspection schedule.
For McLean County, NOAA lists 17 hail reports (largest 2.5 in), 32 damaging-wind reports (up to 87 mph) and 5 tornado reports from January 2024 to June 2026. These count reports, not damaged roofs.
A brief stovepipe tornado was observed southwest of Riverdale. No known damage to evaluate and no other information available. By National Weather Service policy the tornado is rated EF-U (Unknown).
Personal weather station reported wind gusts up to 70 mph.
The tornado touched down about a mile west of Mercer near a farmstead which it then passed through. At this farmstead, the tornado caused extensive tree damage to the property with many branches and trees snapped, and a large tree...
Source: NOAA NCEI Storm Events Database, data through Jun 30, 2026. All storm reports for Mercer
| Job | Typical US range |
|---|---|
| Asphalt shingle roof replacement | $8,000 – $16,000 |
| Metal roof (panels) | $15,000 – $35,000 |
| Flat roof (TPO / EPDM), average home | $5,000 – $12,000 |
National planning ranges for an average ~2,000 sq ft home, not quotes. Local labor, roof pitch, layers to remove, materials and permits change the price.
An average home usually takes a few days of roofing work, longer for complex roofs or bad weather.
Decking checks, underlayment, flashing, vents, the roof covering, ridge and cleanup; ask for the scope in writing.
Many cities and counties require a building permit for roof work; the roofing company normally pulls it. Ask who is responsible and request a copy. Check with the McLean County building department for local rules.
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