“Social media pictures of large half dollar sized hail. (JAN)”
— NOAA / SPC storm report
Hail in Philadelphia Apr 28, 2026
Both radar surfaces caught this storm: NEXRAD logged 16 hail signatures up to 1", and the radar-estimated size reached 1.25" aloft.
1.25"
≈ half-dollar · radar-estimated size aloft455
2
2 hailThe 2nd most severe storm Philadelphia has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 31 /100
- Homes exposed
- 53 /100
- Ground truth
- 33 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Philadelphia 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.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
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.
Where Apr 28, 2026 sits in Philadelphia's hail record
This was Philadelphia's 3rd recorded hail day, arriving 4 days after the Apr 24, 2026 storm. By severity it ranks 2nd of the 11 storms we have logged here. Radar put the day's largest stone over Philadelphia at 1.25" — radar-estimated size aloft.
The Apr 28, 2026 convective day was bigger than Philadelphia: the same system put hail over 724 other tracked cities, 98 of them in Mississippi. Nearest: Union (9 miles southwest, up to 1.25"); Preston (14 miles north, up to 1.25"); Bailey (14 miles southeast, up to 1").
These maps are stills from Philadelphia's Apr 28, 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.
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.
Hail reports
2 reports“(JAN)”
— NOAA / SPC storm report
How the storm moved
Reports came from Pearl River — beyond Philadelphia itself.
What 1.25" hail means for Philadelphia roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$5.5M
Potential roof exposure — 455 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Philadelphia on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Philadelphia storm history — this Apr 28, 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
11 recorded storm days in Philadelphia, MS
Other storms in Philadelphia
Jul 31, 2026
0.75"
Jul 20, 2026
0.5"
Jul 4, 2026
1"
Jul 1, 2026
1.25"
Jun 19, 2026
0.5"
Jun 1, 2026
1.25"
May 6, 2026
4"
Apr 29, 2026
1.5"
Apr 24, 2026
1"
Mar 7, 2026
1.5"