Hail size 1.75"
2 WNW Shelley Bingham County
“Reports of hail up to the size of golf balls in the Journeys End Neighborhood. Reports via Facebook. (PIH)”
— NOAA / SPC storm report
/ Storm field report · Bonneville
Hail in Idaho Falls · Sep 17, 2026
Hit 4 days ago
The estimated-size surface reached 1.25" aloft; NEXRAD logged no point detections over Idaho Falls that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.25" ≈ half-dollar · radar-estimated size aloft
Homes in the hail footprint 21,887
Ground reports 2 2 hail
Radar surfaces 1 Estimated size only
Convective day · Sep 17, 2026 · noon–noon UTC
Severity
The most severe storm Idaho Falls has seen in the last 12 months
Composite score · 4.5 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.5 /10
- Peak hail signal
- 31 /100
- Homes exposed
- 87 /100
- Ground truth
- 33 /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 Idaho Falls saw the hail — from two instruments
Sep 17, 2026 · Idaho Falls, ID
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-estimated hail size Surface resolved
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.
Max size
1.25"
Only the radar-estimated size surface resolved for Sep 17, 2026 — this storm produced no NEXRAD point detections over Idaho Falls, so there is one map to show, not two.
The storm in context
Where Sep 17, 2026 sits in Idaho Falls's hail record.
This was Idaho Falls's 3rd recorded hail day, arriving 49 days after the Jul 30, 2026 storm. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Idaho Falls at 1.25" — radar-estimated size aloft.
The Sep 17, 2026 convective day was bigger than Idaho Falls: the same system put hail over 75 other tracked cities, 21 of them in Idaho. Nearest: Shelley (14 miles southwest, up to 1.25"); Roberts (19 miles northwest, up to 0.75"); Firth (20 miles southwest, up to 1.5").
These maps are stills. In the app this date is one of 3 Idaho Falls 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
2 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
2 reports Hail size 1"
Shelley Bingham County
“Reported in the Shelley area. Relayed by KIFI. (PIH)”
— 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.
Hail was reported over 60 minutes, from to .
Reports came from Shelley — beyond Idaho Falls itself.
Damage-capable hail signal
What 1.25" hail means for Idaho Falls 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.
21,887 homes × $12,000 avg. claim
Potential roof exposure
$263M
Potential roof exposure — 21,887 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 109 jobs
- Illustrative work
- ~$1.6M
Close just 0.5% of the 21,887 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 $4,596 on top of the $150 plan.
Idaho Falls hail history
Other storms in Idaho Falls.
3 recorded storm days in Idaho Falls, ID
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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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 18, 2026.