Every time it hails in the United States, the federal government records it. The National Oceanic and Atmospheric Administration (NOAA) operates a network of radar stations across the country that track hail events in near real-time — down to the specific area they hit, how large the stones were, and exactly when it happened. This data is free and publicly available.
The problem is it's buried in a government database that requires technical knowledge to access. Until now.
What NOAA Actually Tracks
NOAA's NEXRAD radar network consists of 160 stations across the US. Every few minutes, each station sweeps its coverage area and measures precipitation. When hail is present, the radar measures reflectivity patterns that correspond to hailstone size. This data is stored in the NOAA SWDI (Severe Weather Data Inventory) database.
For every hail event, NOAA records the date, location, estimated hailstone size, and the geographic area affected. Three years of this data is available for any US address. That's a comprehensive storm history that most homeowners have never seen.
Important: NOAA radar data reports estimated hail size based on radar reflectivity — not a hailstone someone measured on the ground. Actual hail at your specific address may be smaller than the radar estimate. The data tells you there was hail activity in your area, not a precise measurement at your roof.
How To Get A Free Hail Report For Your Address
Shingleprint pulls NOAA NEXRAD data automatically for any US address. Here's what you get:
- Hail event count: How many storm days with confirmed hail (≥0.75") were detected within 1 mile of your address in the last 3 years
- Maximum hail size: The largest hailstone size detected in your area — this is a radar estimate, not ground-confirmed
- Combined risk score: Your NOAA hail data combined with wind history, UV exposure, and freeze-thaw cycles into a single 0–100 Roof Health Score
It takes 60 seconds and requires no signup. Type your address and the report is generated instantly.
What To Do With Your Report
If your score comes back below 65 — especially if there were multiple hail events with stones over 1 inch — get a professional inspection. A licensed roofer can confirm whether visible damage is present and document it for an insurance claim. Most inspections are free.
If you have a documented NOAA hail event and a professional report showing damage, you have the two things an insurance adjuster needs to process a claim. Your policy's window for filing is typically 12 months from the storm date — check your specific policy.
Get Your Free Hail Report
Real NOAA radar data for any US address. 60 seconds. No signup.
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