Hail in Westby Jun 27, 2026
Hit 37 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.5" aloft.
1"
≈ quarter · the largest NEXRAD radar signature190
0
none filedThe 2nd most severe storm Westby has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 46 /100
- Ground truth
- 0 /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 Westby 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.
NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
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.
Where Jun 27, 2026 sits in Westby's hail record
This was Westby's 4th recorded hail day, arriving 8 days after the Jun 19, 2026 storm. By severity it ranks 2nd of the 7 storms we have logged here. Radar put the day's largest stone over Westby at 1" — the largest NEXRAD radar signature.
The Jun 27, 2026 convective day was bigger than Westby: the same system put hail over 587 other tracked cities, 49 of them in Montana. Nearest: Grenora (12 miles southeast, up to 1"); Fortuna (19 miles east, up to 1"); Plentywood (19 miles southwest, up to 1").
These maps are stills from Westby's Jun 27, 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.
The National Weather Service logged no spotter reports for this storm over Westby. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
What 1" hail means for Westby 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.
$2.3M
Potential roof exposure — 190 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Westby on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Westby storm history — this Jun 27, 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
7 recorded storm days in Westby, MT
Other storms in Westby
Jul 14, 2026
0.5"
Jul 5, 2026
Jul 2, 2026
2.5"
Jun 19, 2026
1"
Jun 7, 2026
0.5"
Jun 6, 2026