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
/ Storm field report · Yuma
Hail in Joes · May 21, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Joes that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 96
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · May 21, 2026 · noon–noon UTC
Severity
The 7th most severe storm Joes has seen in the last 12 months
Composite score · 2.0 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
2.0 /10
- Peak hail signal
- 13 /100
- Homes exposed
- 40 /100
- Ground truth
- 17 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Joes saw the hail — from two instruments
May 21, 2026 · Joes, CO
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 Surface resolved
Estimated size field 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.
The storm in context
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 7th of the 10 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: Cope (5 miles west, up to 1.75"); Vona (17 miles south, up to 1.25"); Flagler (19 miles southwest, up to 2.25").
These maps are stills. In the app this date is one of 10 Joes storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
1 report filed with the NWS
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 reportStorm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Reports came from Kirk — beyond Joes itself.
Below the severe threshold
What 0.5" hail means for Joes roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
96 homes × $12,000 avg. claim
Potential roof exposure
$1.2M
Potential roof exposure — 96 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
May 2028
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.
Names and phones for every home in the footprint: at most $20 on top of the $150 plan.
Estimated-size surface Storm date Joes / CO
Aug 19, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Joes / CO
Jul 28, 2026
No ground reports filed Open report →
NEXRAD surface Storm date Joes / CO
Jul 9, 2026
No ground reports filed Open report →
Estimated-size surface Storm date Joes / CO
Jun 30, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Joes / CO
Jun 26, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Joes / CO
Jun 22, 2026
3" Estimated 3"
7 ground reports Open report →
Estimated-size surface Storm date Joes / CO
Jun 21, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Joes / CO
May 16, 2026
1.25" Signatures 1.25" Estimated 0.75"
1 ground report Open report →
NEXRAD surface Storm date Joes / CO
Apr 26, 2026
No ground reports filed Open report →
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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 20, 2026.