Hail size 1.75"
2 E Windham Judith Basin County
“Report from mPING: Golf Ball (1.75 in.) Estimated. (TFX)”
— NOAA / SPC storm report
/ Storm field report · Judith Basin
Hail in Stanford · Sep 6, 2026
Hit 6 days ago
The estimated-size surface reached 2" aloft; NEXRAD logged no point detections over Stanford that day. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2" ≈ tennis ball · radar-estimated size aloft
Homes in the hail footprint 1,486
Ground reports 4 4 hail
Radar surfaces 1 Estimated size only
Convective day · Sep 6, 2026 · noon–noon UTC
Severity
The most severe storm Stanford has seen in the last 12 months
Composite score · 5.6 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.6 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 63 /100
- Ground truth
- 67 /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 Stanford saw the hail — from two instruments
Sep 6, 2026 · Stanford, MT
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Radar-estimated hail size Surface resolved
Estimated size field The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
2"
Only the radar-estimated size surface resolved for Sep 6, 2026 — this storm produced no NEXRAD point detections over Stanford, so there is one map to show, not two.
The storm in context
Where Sep 6, 2026 sits in Stanford's hail record.
This was Stanford's 10th recorded hail day, arriving 20 days after the Aug 17, 2026 storm. By severity it ranks 1st of the 10 storms we have logged here. Radar put the day's largest stone over Stanford at 2" — radar-estimated size aloft.
The Sep 6, 2026 convective day was bigger than Stanford: the same system put hail over 608 other tracked cities, 49 of them in Montana. Nearest: Hobson (12 miles east, up to 1.75"); Moccasin (20 miles east, up to 2"); Geyser (21 miles northwest, up to 1").
These maps are stills. In the app this date is one of 10 Stanford 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
4 reports filed with the NWS
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.
Hail reports
4 reports Hail size 1.5"
2 NW Benchland Judith Basin County
“(TFX)”
— NOAA / SPC storm report
Hail size 1.25"
Benchland Judith Basin County
“Public measured Half Dollar sized Hail. (TFX)”
— NOAA / SPC storm report
Hail size 1"
4 SSW Geyser Judith Basin County
“Estimated. (TFX)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
The storm tracked southeast at roughly 20 mph, based on the timing of ground reports.
Hail was reported over 85 minutes, from to .
Reports came from Windham, Benchland, and Geyser — beyond Stanford itself.
Severe hail signal
What 2" hail means for Stanford roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
1,486 homes × $12,000 avg. claim
Potential roof exposure
$18M
Potential roof exposure — 1,486 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 7 jobs
- Illustrative work
- ~$105K
Close just 0.5% of the 1,486 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
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 $312 on top of the $150 plan.
Stanford hail history
Other storms in Stanford.
10 recorded storm days in Stanford, MT
Estimated-size surface Storm date Stanford / MT
Aug 17, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Stanford / MT
Jul 16, 2026
2.25" Estimated 2.25"
No ground reports filed Open report →
Estimated-size surface Storm date Stanford / MT
Jul 14, 2026
1.5" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date Stanford / MT
Jul 5, 2026
2.5" Signatures 2.5" Estimated 1.5"
1 ground report Open report →
Estimated-size surface Storm date Stanford / MT
Jul 1, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Stanford / MT
Jun 12, 2026
0.5" Estimated 0.5"
1 ground report Open report →
Estimated-size surface Storm date Stanford / MT
May 29, 2026
2" Signatures 2" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Stanford / MT
May 28, 2026
1.25" Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Stanford / MT
May 13, 2026
0.75" Signatures 0.75"
No ground reports filed Open report →
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A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 7, 2026.