Wind gust 73 mph
7 ESE Harlowton Wheatland County
“(BYZ)”
— NOAA / SPC storm report
Hail in Harlowton Jul 16, 2026
Hit 18 days agoThe radar-estimated size surface caught this storm, reaching 1" aloft. NEXRAD logged no point detections over Harlowton this day.
Largest hailstone
1"
≈ quarter · radar-estimated size aloft Homes in the hail footprint
453
Ground reports
1
1 windThe most severe storm Harlowton 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.
3.1 /10
- Hail size
- 25 /100
- Homes exposed
- 53 /100
- Ground truth
- 17 /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 Harlowton 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-estimated hail size
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.
Max size
1"
Only the radar-estimated size surface resolved for Jul 16, 2026 — this storm produced no NEXRAD point detections over Harlowton, so there is one map to show, not two.
Where Jul 16, 2026 sits in Harlowton's hail record
This was Harlowton's 3rd recorded hail day, arriving 2 days after the Jul 14, 2026 storm. By severity it ranks 1st of the 3 storms we have logged here. Radar put the day's largest stone over Harlowton at 1" — radar-estimated size aloft.
The Jul 16, 2026 convective day was bigger than Harlowton: the same system put hail over 206 other tracked cities, 40 of them in Montana. Nearest: Two Dot (4 miles northwest, up to 1.25"); Judith Gap (18 miles northeast, up to 2.5"); Buffalo (21 miles north, up to 2").
These maps are stills from Harlowton's Jul 16, 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
1 reportWhat 1" hail means for Harlowton roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
What this storm is worth to a roofer
$5.4M
Potential roof exposure — 453 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
2 jobs
Illustrative work
~$30K
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 Harlowton on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Harlowton storm history — this Jul 16, 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
Harlowton hail history
← All hail in Harlowton 3 recorded storm days in Harlowton, MT
Other storms in Harlowton
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.