Hail in Grand Junction Jul 20, 2026
Hit 14 days agoThe radar-estimated size surface caught this storm, reaching 1" aloft. NEXRAD logged no point detections over Grand Junction this day.
1"
≈ quarter · radar-estimated size aloft246
0
none filedThe 3rd most severe storm Grand Junction 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
- 48 /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 Grand Junction 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 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.
Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Grand Junction, so there is one map to show, not two.
Where Jul 20, 2026 sits in Grand Junction's hail record
This was Grand Junction's 4th recorded hail day, arriving 17 days after the Jul 3, 2026 storm. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Grand Junction at 1" — radar-estimated size aloft.
The Jul 20, 2026 convective day was bigger than Grand Junction: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Jefferson (6 miles southwest, up to 0.5"); Rippey (9 miles southeast, up to 1"); Jamaica (10 miles south, up to 1").
These maps are stills from Grand Junction's Jul 20, 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.
For this storm over Grand Junction, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
What 1" hail means for Grand Junction 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.
$3M
Potential roof exposure — 246 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Grand Junction on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Grand Junction storm history — this Jul 20, 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
4 recorded storm days in Grand Junction, IA
