Hail in New Hampton · Sep 4, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over New Hampton that day. Open it on the live map to see the swath over the streets.
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Convective day · Sep 4, 2026 · noon–noon UTC
Severity
The 5th most severe storm New Hampton 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
- 13 /100
- Homes exposed
- 37 /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 New Hampton 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.
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.
Only the radar-estimated size surface resolved for Sep 4, 2026 — this storm produced no NEXRAD point detections over New Hampton, so there is one map to show, not two.
The storm in context
Where Sep 4, 2026 sits in New Hampton's hail record.
This was New Hampton's 7th recorded hail day, arriving 25 days after the Aug 10, 2026 storm. By severity it ranks 5th of the 7 storms we have logged here. Radar put the day's largest stone over New Hampton at 0.5" — radar-estimated size aloft.
The Sep 4, 2026 convective day was bigger than New Hampton: the same system put hail over 482 other tracked cities, 31 of them in Iowa. Nearest: Fredericksburg (5 miles east, up to 0.5"); Waucoma (17 miles northeast, up to 0.75"); Hawkeye (18 miles east, up to 0.75").
These maps are stills. In the app this date is one of 7 New Hampton 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 New Hampton 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.
Below the severe threshold
What 0.5" hail means for New Hampton roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$876K
Potential roof exposure — 73 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 $15 on top of the $150 plan.
New Hampton hail history
Other storms in New Hampton.
Estimated-size surface Aug 10, 2026
0.5"
Estimated-size surface Aug 7, 2026
0.75"
Estimated-size surface Jul 2, 2026
1.75"
NEXRAD surface Jun 30, 2026
Estimated-size surface Apr 13, 2026
0.5"
NEXRAD surface Mar 14, 2026
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