Wind gust 59 mph
2 SW Lewistown Fergus County
“Delayed report due to data ingestion errors. (TFX)”
— NOAA / SPC storm report
Hail in Lewistown Jul 14, 2026
Hit 20 days agoThe radar-estimated size surface caught this storm, reaching 2.5" aloft. NEXRAD logged no point detections over Lewistown this day. At 2.5" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
2.5"
≈ baseball · radar-estimated size aloft Homes in the hail footprint
6,209
Ground reports
2
2 windThe most severe storm Lewistown 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.
6.1 /10
- Hail size
- 63 /100
- Homes exposed
- 76 /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 Lewistown 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.
Radar-estimated hail size
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.
Max size
2.5"
Only the radar-estimated size surface resolved for Jul 14, 2026 — this storm produced no NEXRAD point detections over Lewistown, so there is one map to show, not two.
Where Jul 14, 2026 sits in Lewistown's hail record
This was Lewistown's 6th recorded hail day, arriving 9 days after the Jul 5, 2026 storm. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Lewistown at 2.5" — radar-estimated size aloft.
The Jul 14, 2026 convective day was bigger than Lewistown: the same system put hail over 130 other tracked cities, 23 of them in Montana. Nearest: Moore (12 miles west, up to 2.5"); Forest Grove (22 miles east, up to 1.75"); Judith Gap (23 miles southwest, up to 3.25").
These maps are stills from Lewistown'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 58 mph
4 W Lewistown Fergus County
“Ambient Weather Station just north of the Lewistown Airport. (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 59 minutes, from to .
What 2.5" hail means for Lewistown roofs
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
What this storm is worth to a roofer
$75M
Potential roof exposure — 6,209 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
31 jobs
Illustrative work
~$465K
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 Lewistown on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Lewistown 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
Lewistown hail history
← All hail in Lewistown 6 recorded storm days in Lewistown, MT
Other storms in Lewistown
Jul 5, 2026
Jul 1, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed 
Jun 26, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Jun 7, 2026
1" Signatures 1"
No ground reports filed 
May 29, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed
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.