NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 1.5" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Aug 13, 2026 · noon–noon UTC
Severity
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
The storm in context
This was Aurora's 4th recorded hail day, arriving 15 days after the Jul 29, 2026 storm. By severity it ranks 2nd of the 5 storms we have logged here. Radar put the day's largest stone over Aurora at 1.5" — radar-estimated size aloft.
The Aug 13, 2026 convective day was bigger than Aurora: the same system put hail over 437 other tracked cities, 22 of them in Colorado. Nearest: Englewood (9 miles southwest, up to 1.5"); Morrison (22 miles west, up to 0.5"); Buffalo Creek (30 miles southwest, up to 0.5").
These maps are stills. In the app this date is one of 5 Aurora storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
“2 to 3 feet deep hail drifts. Hail accumulation up to 3 inches in yards with most leaves stripped from trees. Quarter size hail found approximately an hour after hail f (BOU)”
— NOAA / SPC storm report
“(BOU)”
— NOAA / SPC storm report
“(BOU)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Foxfield — beyond Aurora itself.
High damage potential
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
Potential roof exposure
$376M
Potential roof exposure — 31,321 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Close just 0.5% of the 31,321 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
August 2028
Claims from this storm can typically be filed until around August 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $6,577 on top of the $150 plan.
Aurora hail history
Estimated-size surface 
Estimated-size surface 
Estimated-size surface 
Estimated-size surface See the hail, review your recommendations, and canvass with Overview on iPhone.
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