Hail in Hamburg · Jun 30, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Jun 30, 2026 · noon–noon UTC
Severity
The 12th most severe storm Hamburg 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
- 0 /100
- Homes exposed
- 0 /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 Hamburg 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 Jun 30, 2026 sits in Hamburg's hail record.
This was Hamburg's 8th recorded hail day, arriving 20 days after the Jun 10, 2026 storm. By severity it ranks 12th of the 12 storms we have logged here. Radar put the day's largest stone over Hamburg at 0" — radar-estimated size aloft.
The Jun 30, 2026 convective day was bigger than Hamburg: the same system put hail over 720 other tracked cities, 85 of them in Iowa. Nearest: Shenandoah (8 miles east, up to 1"); Peru (10 miles southwest, up to 0"); Northboro (13 miles east, up to 0.5").
These maps are stills. In the app this date is one of 12 Hamburg 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 Hamburg 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" hail means for Hamburg 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
Hamburg hail history
Other storms in Hamburg.
Estimated-size surface Sep 14, 2026
0.5"
Estimated-size surface Sep 6, 2026
0.75"
Estimated-size surface Jul 8, 2026
1"
Estimated-size surface Jul 3, 2026
2.5"
Estimated-size surface Jun 10, 2026
1.5"
Estimated-size surface May 18, 2026
2.25"
Estimated-size surface May 17, 2026
1.75"
Estimated-size surface May 16, 2026
1.75"
Estimated-size surface Apr 23, 2026
2"
Estimated-size surface Apr 3, 2026
1.25"
Estimated-size surface Mar 6, 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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