Storm report · Allegheny

Hail in Carnegie Jul 17, 2026

Hit 17 days ago

The radar-estimated size surface caught this storm, reaching 0.75" aloft. NEXRAD logged no point detections over Carnegie this day.

Largest hailstone

0.75"

≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint

4,146

Ground reports

0

none filed
Severity

Carnegie's only recorded storm in the last 12 months

Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

2.9 /10
Hail size
19 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
72 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Carnegie saw the hail — from two instruments

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

Radar-estimated hail size
Radar-estimated hail-size map of the storm over Carnegie, PA on Jul 17, 2026

The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 0.75"

Only the radar-estimated size surface resolved for Jul 17, 2026 — this storm produced no NEXRAD point detections over Carnegie, so there is one map to show, not two.

The storm in context

Where Jul 17, 2026 sits in Carnegie's hail record

This was Carnegie's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over Carnegie at 0.75" — radar-estimated size aloft.

The Jul 17, 2026 convective day was bigger than Carnegie: the same system put hail over 415 other tracked cities, 2 of them in Pennsylvania. Nearest: Oakdale (5 miles west, up to 0.75"); Hickory (13 miles southwest, up to 0.5"); Terra Alta (75 miles southeast, up to 0.5").

These maps are stills from Carnegie's Jul 17, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.

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.

The National Weather Service logged no spotter reports for this storm over Carnegie. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.

Near the severe threshold

What 0.75" hail means for Carnegie roofs

Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.

What this storm is worth to a roofer

$50M

Potential roof exposure — 4,146 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
21 jobs
Illustrative work
~$315K
Close just 0.5% of the 4,146 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.
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Track hail over Carnegie on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Carnegie storm history — this Jul 17, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.

Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing

Carnegie hail history

1 recorded storm day in Carnegie, PA

← All hail in Carnegie
A storm day here is a convective day — it runs from noon to noon UTC, so late-night hail is grouped with the afternoon storm that spawned it rather than split across two calendar dates. Ground reports are public-domain observations from the NOAA Storm Prediction Center. Radar surfaces are detections and estimates, not confirmed damage. Last updated Aug 3, 2026.