Hail in Allison Park · Sep 2, 2026
The estimated-size surface reached 1" aloft; NEXRAD logged no point detections over Allison Park that day. Open it on the live map to see the swath over the streets.
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Convective day · Sep 2, 2026 · noon–noon UTC
Severity
The most severe storm Allison Park has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 25 /100
- Homes exposed
- 82 /100
- Ground truth
- 0 /100
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
How Allison Park saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Only the radar-estimated size surface resolved for Sep 2, 2026 — this storm produced no NEXRAD point detections over Allison Park, so there is one map to show, not two.
The storm in context
Where Sep 2, 2026 sits in Allison Park's hail record.
This was Allison Park's 3rd recorded hail day, arriving 11 days after the Aug 22, 2026 storm. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Allison Park at 1" — radar-estimated size aloft.
The Sep 2, 2026 convective day was bigger than Allison Park: the same system put hail over 356 other tracked cities, 100 of them in Pennsylvania. Nearest: Cranberry Township (10 miles northwest, up to 0.5"); Ambridge (13 miles west, up to 0.5"); Evans City (14 miles north, up to 0.5").
These maps are stills. In the app this date is one of 4 Allison Park 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
What people on the ground reported
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.
Nobody on the ground filed a report over Allison Park for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
Damage-capable hail signal
What 1" hail means for Allison Park roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$148M
Potential roof exposure — 12,312 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 62 jobs
- Illustrative work
- ~$930K
Close just 0.5% of the 12,312 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
September 2028
Claims from this storm can typically be filed until around September 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 $2,586 on top of the $150 plan.
Allison Park hail history
Other storms in Allison Park.
Estimated-size surface Sep 3, 2026
0.75"
Estimated-size surface Aug 22, 2026
0.5"
NEXRAD surface Mar 22, 2026
0.5"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.