Hail in Philadelphia · Mar 7, 2026
NEXRAD logged 4 hail signatures up to 1.5"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Mar 7, 2026 · noon–noon UTC
Severity
The 4th 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.
- Peak hail signal
- 38 /100
- Homes exposed
- 49 /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 Philadelphia saw the hail — from two instruments
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Radar signature field NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
The storm in context
Where Mar 7, 2026 sits in Philadelphia's hail record.
This was Philadelphia's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 16 storms we have logged here. Radar put the day's largest stone over Philadelphia at 1.5" — the largest NEXRAD radar signature.
The Mar 7, 2026 convective day was bigger than Philadelphia: the same system put hail over 254 other tracked cities, 41 of them in Mississippi. Nearest: Collinsville (7 miles south, up to 0.75"); Union (22 miles southwest, up to 1.25"); Macon (24 miles northeast, up to 1").
These maps are stills. In the app this date is one of 16 Philadelphia 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 Philadelphia 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.
High damage potential
What 1.5" hail means for Philadelphia roofs.
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
What this storm is worth to a roofer.
Potential roof exposure
$3.3M
Potential roof exposure — 271 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 1 job
- Illustrative work
- ~$15K
Close just 0.5% of the 271 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
March 2028
Claims from this storm can typically be filed until around March 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 $57 on top of the $150 plan.
Philadelphia hail history
Other storms in Philadelphia.
Sep 12, 2026
0.5"
Estimated-size surface Sep 7, 2026
0.5"
Estimated-size surface Sep 6, 2026
0.5"
Estimated-size surface Aug 20, 2026
1"
Estimated-size surface Aug 19, 2026
0.5"
NEXRAD surface Jul 31, 2026
0.75"
Estimated-size surface Jul 20, 2026
0.5"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 1, 2026
1.25"
Estimated-size surface Jun 19, 2026
0.5"
Estimated-size surface Jun 1, 2026
1.25"
Estimated-size surface May 6, 2026
4"
Estimated-size surface Apr 29, 2026
1.5"
Estimated-size surface Apr 28, 2026
1.25"
Estimated-size surface Apr 24, 2026
1"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.