Wind gust 86 mph
12 SSE Forestgrove Fergus County
“N Bar Ranch AWOS reported an 86 mph gust. Sustained winds of 45 mph at time of report. (TFX)”
— NOAA / SPC storm report
Hail in Grass Range Jul 14, 2026
Hit 20 days agoThe radar-estimated size surface caught this storm, reaching 1.5" aloft. NEXRAD logged no point detections over Grass Range this day.
Largest hailstone
1.5"
≈ ping-pong ball · radar-estimated size aloft Homes in the hail footprint
555
Ground reports
2
2 windThe 2nd most severe storm Grass Range has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.1 /10
- Hail size
- 38 /100
- Homes exposed
- 55 /100
- Ground truth
- 33 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Grass Range saw the hail — from two instruments
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
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
1.5"
Only the radar-estimated size surface resolved for Jul 14, 2026 — this storm produced no NEXRAD point detections over Grass Range, so there is one map to show, not two.
Where Jul 14, 2026 sits in Grass Range's hail record
This was Grass Range's 4th recorded hail day, arriving 11 days after the Jul 3, 2026 storm. By severity it ranks 2nd of the 4 storms we have logged here. Radar put the day's largest stone over Grass Range at 1.5" — radar-estimated size aloft.
The Jul 14, 2026 convective day was bigger than Grass Range: the same system put hail over 130 other tracked cities, 23 of them in Montana. Nearest: Forest Grove (18 miles southwest, up to 1.75"); Lewistown (36 miles west, up to 2.5"); Roundup (39 miles southeast, up to 1.5").
These maps are stills from Grass Range's Jul 14, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
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.
Wind reports
2 reports Wind gust 67 mph
2 NW Grass Range Fergus County
“Ambient Weather Station just west of Grass Range reported a 67 mph wind gust. (TFX)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 15 minutes, from to .
Reports came from Forestgrove — beyond Grass Range itself.
What 1.5" hail means for Grass Range roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$6.7M
Potential roof exposure — 555 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
3 jobs
Illustrative work
~$45K
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.
Track hail over Grass Range on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Grass Range storm history — this Jul 14, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
Grass Range hail history
← All hail in Grass Range 4 recorded storm days in Grass Range, MT
Other storms in Grass Range
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 surfaces are detections and estimates,
not confirmed damage. Last updated Aug 3, 2026.