Hail in Cannon Ball · Jul 19, 2026
The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Cannon Ball that day. Open it on the live map to see the swath over the streets.
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Convective day · Jul 19, 2026 · noon–noon UTC
Severity
The 2nd most severe storm Cannon Ball 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
- 38 /100
- Homes exposed
- 38 /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 Cannon Ball 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 Jul 19, 2026 — this storm produced no NEXRAD point detections over Cannon Ball, so there is one map to show, not two.
The storm in context
Where Jul 19, 2026 sits in Cannon Ball's hail record.
This was Cannon Ball's 4th recorded hail day, arriving 18 days after the Jul 1, 2026 storm. By severity it ranks 2nd of the 7 storms we have logged here. Radar put the day's largest stone over Cannon Ball at 1.5" — radar-estimated size aloft.
The Jul 19, 2026 convective day was bigger than Cannon Ball: the same system put hail over 351 other tracked cities, 44 of them in North Dakota. Nearest: Linton (14 miles south, up to 1.25"); Fort Yates (17 miles south, up to 1.5"); Hague (34 miles east, up to 2.25").
These maps are stills. In the app this date is one of 7 Cannon Ball 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 Cannon Ball, 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.
High damage potential
What 1.5" hail means for Cannon Ball roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$972K
Potential roof exposure — 81 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
July 2028
Claims from this storm can typically be filed until around July 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 $17 on top of the $150 plan.
Cannon Ball hail history
Other storms in Cannon Ball.
Estimated-size surface Aug 17, 2026
0.5"
Estimated-size surface Aug 12, 2026
0.5"
Estimated-size surface Aug 8, 2026
1"
Estimated-size surface Jul 1, 2026
1.75"
Estimated-size surface Jun 27, 2026
1"
Estimated-size surface Jun 7, 2026
0.5"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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