Hail size 1"
1 W Harper Harper County
“Report from mPING: Quarter (1.00 in.). (ICT)”
— NOAA / SPC storm report
/ Storm field report · Harper
Hail in Harper · Jun 21, 2026
The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Harper that day. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 4,251
Ground reports 3 1 hail · 2 wind
Radar surfaces 1 Estimated size only
Convective day · Jun 21, 2026 · noon–noon UTC
Severity
The most severe storm Harper has seen in the last 12 months
Composite score · 5.6 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.6 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 73 /100
- Ground truth
- 50 /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 Harper saw the hail — from two instruments
Jun 21, 2026 · Harper, KS
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-estimated hail size Surface resolved
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.
Max size
2"
Only the radar-estimated size surface resolved for Jun 21, 2026 — this storm produced no NEXRAD point detections over Harper, so there is one map to show, not two.
The storm in context
Where Jun 21, 2026 sits in Harper's hail record.
This was Harper's 12th recorded hail day, arriving 1 day after the Jun 20, 2026 storm. By severity it ranks 1st of the 17 storms we have logged here. Radar put the day's largest stone over Harper at 2" — radar-estimated size aloft.
The Jun 21, 2026 convective day was bigger than Harper: the same system put hail over 415 other tracked cities, 74 of them in Kansas. Nearest: Spivey (9 miles northwest, up to 2"); Anthony (9 miles southeast, up to 1"); Danville (11 miles east, up to 2").
These maps are stills. In the app this date is one of 17 Harper 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
3 reports filed with the NWS
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
1 reportWind reports
2 reports Wind gust 63 mph
3 W Anthony Harper County
“Peak wind at KANY AWOS. (ICT)”
— NOAA / SPC storm report
Wind gust 60 mph
1 SSW Harper Harper County
“Multiple 1.5-2 inch tree limbs broken. (ICT)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Anthony — beyond Harper itself.
Severe hail signal
What 2" hail means for Harper roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
4,251 homes × $12,000 avg. claim
Potential roof exposure
$51M
Potential roof exposure — 4,251 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 4,251 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
June 2028
Claims from this storm can typically be filed until around June 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 $893 on top of the $150 plan.
Harper hail history
Other storms in Harper.
17 recorded storm days in Harper, KS
Map unavailable
NEXRAD surface Storm date Harper / KS
Sep 15, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Sep 12, 2026
2.5" Estimated 2.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jul 11, 2026
1.25" Signatures 1.25" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 26, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 25, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 20, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 18, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 13, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jun 1, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
May 30, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
May 29, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
May 18, 2026
2" Estimated 2"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Apr 17, 2026
2.5" Signatures 2.5" Estimated 1.75"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Mar 10, 2026
1.25" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Mar 3, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Harper / KS
Jan 10, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 16, 2026.