Hail size 1"
4 W Davisburg Oakland County
“Social media report with image of various size hailstones. Largest estimated quarter in diameter by source. (DTX)”
— NOAA / SPC storm report
/ Storm field report · Oakland
Hail in Holly · Feb 18, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Holly 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 22
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · Feb 18, 2026 · noon–noon UTC
Severity
The 5th most severe storm Holly has seen in the last 12 months
Composite score · 1.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
1.7 /10
- Peak hail signal
- 13 /100
- Homes exposed
- 27 /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 Holly saw the hail — from two instruments
Feb 18, 2026 · Holly, MI
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 Surface resolved
Estimated size field 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
0.5"
Only the radar-estimated size surface resolved for Feb 18, 2026 — this storm produced no NEXRAD point detections over Holly, so there is one map to show, not two.
The storm in context
Where Feb 18, 2026 sits in Holly's hail record.
This was Holly's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 5th of the 5 storms we have logged here. Radar put the day's largest stone over Holly at 0.5" — radar-estimated size aloft.
The Feb 18, 2026 convective day was bigger than Holly: the same system put hail over 19 other tracked cities, 3 of them in Michigan. Nearest: Howell (25 miles southwest, up to 0.75"); Fowlerville (29 miles west, up to 0.5"); East China (51 miles east, up to 0.75").
These maps are stills. In the app this date is one of 5 Holly 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 Davisburg — beyond Holly itself.
Below the severe threshold
What 0.5" hail means for Holly 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.
22 homes × $12,000 avg. claim
Potential roof exposure
$264K
Potential roof exposure — 22 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
February 2028
Claims from this storm can typically be filed until around February 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 $5 on top of the $150 plan.
Estimated-size surface Storm date Holly / MI
Sep 3, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Holly / MI
Jul 15, 2026
0.5" Estimated 0.5"
1 ground report Open report →
Estimated-size surface Storm date Holly / MI
May 18, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Holly / MI
May 15, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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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 Sep 4, 2026.