Tornado Rating unknown
2 WSW Thurman Washington County
“Brief Tornado lasted one minute. (BOU)”
— NOAA / SPC storm report
Hail in Lindon May 21, 2026
The radar-estimated size surface caught this storm, reaching 1.75" aloft. NEXRAD logged no point detections over Lindon this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
Largest hailstone
1.75"
≈ golf ball · radar-estimated size aloft Homes in the hail footprint
196
Ground reports
7
4 hail · 3 tornadoThe most severe storm Lindon 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.
5.3 /10
- Hail size
- 44 /100
- Homes exposed
- 46 /100
- Ground truth
- 100 /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 Lindon saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Radar-estimated hail size
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
1.75"
Only the radar-estimated size surface resolved for May 21, 2026 — this storm produced no NEXRAD point detections over Lindon, so there is one map to show, not two.
Where May 21, 2026 sits in Lindon's hail record
This was Lindon's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Lindon at 1.75" — radar-estimated size aloft.
The May 21, 2026 convective day was bigger than Lindon: the same system put hail over 120 other tracked cities, 20 of them in Colorado. Nearest: Woodrow (19 miles northwest, up to 1.5"); Flagler (24 miles southeast, up to 2.25"); Anton (24 miles east, up to 2").
These maps are stills from Lindon'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.
Tornado reports
3 reports Tornado Rating unknown
3 WNW Thurman Washington County
“Brief ground circulation. Report via NWSChat. (BOU)”
— NOAA / SPC storm report
Tornado Rating unknown
3 WSW Thurman Washington County
“Tornado lasted 4 minutes. (BOU)”
— NOAA / SPC storm report
Hail reports
4 reports Hail size 2.5"
6 S Lindon Washington County
“Report from mPING: Tennis Ball (2.50 in.). (BOU)”
— NOAA / SPC storm report
Hail size 2.75"
2 WNW Thurman Washington County
“(BOU)”
— NOAA / SPC storm report
Hail size 1"
5 NW Thurman Washington County
“Report from mPING: Quarter (1.00 in.). (BOU)”
— NOAA / SPC storm report
Hail size 1.25"
5 NW Thurman Washington County
“Report from mPING: Half Dollar (1.25 in.). (BOU)”
— NOAA / SPC storm 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
Hail was reported over 28 minutes, from to .
Reports came from Thurman — beyond Lindon itself.
What 1.75" hail means for Lindon roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$2.4M
Potential roof exposure — 196 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
1 job
Illustrative work
~$15K
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 Lindon on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Lindon 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
Lindon hail history
← All hail in Lindon 4 recorded storm days in Lindon, CO
Other storms in Lindon
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.