Hail in Grimes · Jun 11, 2026
The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Grimes that day. Open it on the live map to see the swath over the streets.
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Convective day · Jun 11, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Grimes has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 19 /100
- Homes exposed
- 74 /100
- Ground truth
- 0 /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 Grimes saw the hail — from two instruments
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Only the radar-estimated size surface resolved for Jun 11, 2026 — this storm produced no NEXRAD point detections over Grimes, so there is one map to show, not two.
The storm in context
Where Jun 11, 2026 sits in Grimes's hail record.
This was Grimes's 2nd recorded hail day, arriving 73 days after the Mar 30, 2026 storm. By severity it ranks 3rd of the 5 storms we have logged here. Radar put the day's largest stone over Grimes at 0.75" — radar-estimated size aloft.
The Jun 11, 2026 convective day was bigger than Grimes: the same system put hail over 648 other tracked cities, 147 of them in Iowa. Nearest: Johnston (5 miles east, up to 0.75"); West Des Moines (7 miles south, up to 0.75"); Madrid (7 miles north, up to 0.75").
These maps are stills. In the app this date is one of 5 Grimes 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
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.
Nobody on the ground filed a report over Grimes for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
Near the severe threshold
What 0.75" hail means for Grimes roofs.
A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$61M
Potential roof exposure — 5,114 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 26 jobs
- Illustrative work
- ~$390K
Close just 0.5% of the 5,114 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
June 2028
Claims from this storm can typically be filed until around June 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 $1,074 on top of the $150 plan.
Grimes hail history
Other storms in Grimes.
Estimated-size surface Jul 20, 2026
2"
Estimated-size surface Jul 3, 2026
1.5"
Estimated-size surface Jul 2, 2026
1.25"
Estimated-size surface Mar 30, 2026
1"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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