Tornado Rating unknown
4 SW Hamberg Wells County
“Tornado on ground from 7:16 PM to 7:18 PM. (BIS)”
— NOAA / SPC storm report
Hail in Harvey Jul 9, 2026
Hit 25 days agoBoth radar surfaces caught this storm: NEXRAD logged 42 hail signatures up to 3.25", and the radar-estimated size reached 2" aloft. At 3.25" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
Largest hailstone
3.25"
≈ baseball · the largest NEXRAD radar signature Homes in the hail footprint
364
Ground reports
5
4 hail · 1 tornadoThe most severe storm Harvey has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
7.7 /10
- Hail size
- 81 /100
- Homes exposed
- 51 /100
- Ground truth
- 100 /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 Harvey saw the hail — from two instruments
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.
NEXRAD radar signatures
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.
Max size
3.25"
Detections
42
Radar-estimated hail size
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.
Max size
2"
Where Jul 9, 2026 sits in Harvey's hail record
This was Harvey's 5th recorded hail day, arriving 10 days after the Jun 29, 2026 storm. By severity it ranks 1st of the 7 storms we have logged here. Radar put the day's largest stone over Harvey at 3.25" — the largest NEXRAD radar signature.
The Jul 9, 2026 convective day was bigger than Harvey: the same system put hail over 944 other tracked cities, 98 of them in North Dakota. Nearest: Manfred (7 miles south, up to 2.5"); Heimdal (9 miles east, up to 2.5"); Maddock (14 miles east, up to 2.75").
These maps are stills from Harvey's Jul 9, 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.
Tornado reports
1 reportHail reports
4 reports Hail size 1"
12 S Esmond Benson County
“Mostly peas... but a few dime to quarter sized hail stones. Very heavy rainfall. Hail lasted five minutes. Time estimated from radar. (FGF)”
— NOAA / SPC storm report
Hail size 1.25"
4 S Wellsburg Wells County
“(BIS)”
— NOAA / SPC storm report
Hail size 2.25"
6 NE Harvey Wells County
“Time estimated from radar. Relayed to NWS by broadcast media partner. (BIS)”
— NOAA / SPC storm report
Hail size 2.5"
Wellsburg Wells County
“Corrects previous hail report from Heimdal... changing it to Wellsburg. Public report relayed by broadcast media. Hailstones measured by ruler to be 2.5 inches. Radar a (BIS)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 26 minutes, from to .
Reports came from Esmond, Wellsburg, and Hamberg — beyond Harvey itself.
What 3.25" hail means for Harvey roofs
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
What this storm is worth to a roofer
$4.4M
Potential roof exposure — 364 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
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 Harvey on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Harvey storm history — this Jul 9, 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
Harvey hail history
← All hail in Harvey 7 recorded storm days in Harvey, ND
Other storms in Harvey
Jul 30, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jul 16, 2026
1.25" Estimated 1.25"
No ground reports filed 
Jun 29, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Jun 28, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
Jun 9, 2026
0.75" Estimated 0.75"
2
ground reports 
Jun 2, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed
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.