Hail size 1"
2.6 N Kirk Yuma County
“Social media report of quarter size hail 2.6 miles north of Kirk... CO at ~11:28 pm MDT Thu May 21 (0528 UTC Fri May 22). Time estimated by radar. (GLD)”
— NOAA / SPC storm report
Hail in Joes May 21, 2026
The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Joes this day.
Largest hailstone
0.5"
≈ pea to penny · radar-estimated size aloft Homes in the hail footprint
96
Ground reports
1
1 hailThe 6th most severe storm Joes 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.
2.0 /10
- Hail size
- 13 /100
- Homes exposed
- 40 /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 Joes 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
0.5"
Only the radar-estimated size surface resolved for May 21, 2026 — this storm produced no NEXRAD point detections over Joes, so there is one map to show, not two.
Where May 21, 2026 sits in Joes's hail record
This was Joes's 3rd recorded hail day, arriving 5 days after the May 16, 2026 storm. By severity it ranks 6th of the 9 storms we have logged here. Radar put the day's largest stone over Joes at 0.5" — radar-estimated size aloft.
The May 21, 2026 convective day was bigger than Joes: the same system put hail over 120 other tracked cities, 20 of them in Colorado. Nearest: Anton (11 miles west, up to 2"); Cope (11 miles southwest, up to 1.75"); Bethune (21 miles southeast, up to 1").
These maps are stills from Joes's May 21, 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.
Hail reports
1 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
Reports came from Kirk — beyond Joes itself.
What 0.5" hail means for Joes roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
What this storm is worth to a roofer
$1.2M
Potential roof exposure — 96 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage. Claims from this storm can typically be filed until around May 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Joes on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Joes storm history — this May 21, 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
Joes hail history
← All hail in Joes 9 recorded storm days in Joes, CO
Other storms in Joes
Jul 28, 2026
Jul 9, 2026
Jun 30, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed 
Jun 26, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Jun 22, 2026
3" Estimated 3"
7
ground reports 
Jun 21, 2026
1.5" Estimated 1.5"
No ground reports filed 
May 16, 2026
1.25" Signatures 1.25" Estimated 0.75"
1
ground report 
Apr 26, 2026
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.