Hail in Java · Sep 6, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Java 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 9th most severe storm Java 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
- 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 Java 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.
Estimated size field 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 6, 2026 — this storm produced no NEXRAD point detections over Java, so there is one map to show, not two.
The storm in context
Where Sep 6, 2026 sits in Java's hail record.
This was Java's 9th recorded hail day, arriving 29 days after the Aug 8, 2026 storm. By severity it ranks 9th of the 9 storms we have logged here. Radar put the day's largest stone over Java at 0.5" — radar-estimated size aloft.
The Sep 6, 2026 convective day was bigger than Java: the same system put hail over 608 other tracked cities, 33 of them in South Dakota. Nearest: Eureka (22 miles north, up to 1.5"); Hoven (23 miles southwest, up to 1"); Pollock (32 miles northwest, up to 0.75").
These maps are stills. In the app this date is one of 9 Java 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.
For this storm over Java, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
Below the severe threshold
What 0.5" hail means for Java 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
Estimated-size surface Aug 8, 2026
1.5"
Estimated-size surface Aug 2, 2026
0.5"
Estimated-size surface Jul 25, 2026
1.75"
Estimated-size surface Jul 7, 2026
2.5"
Estimated-size surface Jun 9, 2026
0.5"
Estimated-size surface Jun 3, 2026
1.25"
Estimated-size surface Jun 2, 2026
0.75"
Estimated-size surface May 31, 2026
0.5"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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