Hail in Helena · Jun 1, 2026
NEXRAD logged 0 hail signatures up to 1"; the estimated-size surface reached 0.5" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Jun 1, 2026 · noon–noon UTC
Severity
The 8th most severe storm Helena 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
- 25 /100
- Homes exposed
- 21 /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 Helena 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.
Radar signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
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.
The storm in context
Where Jun 1, 2026 sits in Helena's hail record.
This was Helena's 7th recorded hail day, arriving 3 days after the May 29, 2026 storm. By severity it ranks 8th of the 11 storms we have logged here. Radar put the day's largest stone over Helena at 1" — the largest NEXRAD radar signature.
The Jun 1, 2026 convective day was bigger than Helena: the same system put hail over 827 other tracked cities, 72 of them in Oklahoma. Nearest: Jet (7 miles north, up to 1"); Nash (12 miles east, up to 1"); Meno (14 miles south, up to 1").
These maps are stills. In the app this date is one of 11 Helena 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 Helena, 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.
Damage-capable hail signal
What 1" hail means for Helena roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$120K
Potential roof exposure — 10 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
June 2028
Claims from this storm can typically be filed until around June 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 $2 on top of the $150 plan.
Helena hail history
Other storms in Helena.
Estimated-size surface Jul 4, 2026
2.5"
Estimated-size surface Jun 26, 2026
1"
Estimated-size surface Jun 21, 2026
0.75"
Estimated-size surface Jun 4, 2026
1"
Estimated-size surface May 29, 2026
1"
NEXRAD surface May 9, 2026
Estimated-size surface Apr 26, 2026
1"
Estimated-size surface Apr 17, 2026
4"
Estimated-size surface Mar 5, 2026
2.5"
Estimated-size surface Mar 3, 2026
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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