Hail in Hartley · Sep 6, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Hartley that day. Open it on the live map to see the swath over the streets.
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Convective day · Sep 6, 2026 · noon–noon UTC
Severity
The 8th most severe storm Hartley 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
- 19 /100
- Homes exposed
- 35 /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 Hartley saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Estimated size field Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Only the radar-estimated size surface resolved for Sep 6, 2026 — this storm produced no NEXRAD point detections over Hartley, so there is one map to show, not two.
The storm in context
Where Sep 6, 2026 sits in Hartley's hail record.
This was Hartley's 14th recorded hail day, arriving 5 days after the Sep 1, 2026 storm. By severity it ranks 8th of the 14 storms we have logged here. Radar put the day's largest stone over Hartley at 0.75" — radar-estimated size aloft.
The Sep 6, 2026 convective day was bigger than Hartley: the same system put hail over 608 other tracked cities, 72 of them in Iowa. Nearest: Milford (5 miles east, up to 0.75"); Melvin (10 miles west, up to 0.5"); Spencer (16 miles southeast, up to 0.75").
These maps are stills. In the app this date is one of 14 Hartley 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.
The National Weather Service logged no spotter reports for this storm over Hartley. 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 Hartley roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$684K
Potential roof exposure — 57 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
September 2028
Claims from this storm can typically be filed until around September 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 $12 on top of the $150 plan.
Hartley hail history
Other storms in Hartley.
Estimated-size surface Sep 1, 2026
0.5"
Estimated-size surface Aug 8, 2026
1.25"
Estimated-size surface Aug 3, 2026
0.5"
Estimated-size surface Jul 4, 2026
0.5"
Estimated-size surface Jun 29, 2026
1"
Estimated-size surface Jun 27, 2026
2.5"
Estimated-size surface May 31, 2026
Estimated-size surface May 25, 2026
1"
Estimated-size surface May 24, 2026
0.5"
Estimated-size surface May 18, 2026
2.25"
Estimated-size surface May 17, 2026
1.75"
Estimated-size surface Apr 13, 2026
1.25"
NEXRAD surface Mar 5, 2026
Take your next area into the field.
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