Hail in Ottawa · Jul 3, 2026
NEXRAD logged 9 hail signatures up to 1.25"; the estimated-size surface reached 0.5" aloft. Open it on the live map to see the swath over the streets.
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Convective day · Jul 3, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Ottawa 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
- 31 /100
- Homes exposed
- 64 /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 Ottawa 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 signature field The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
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.
The storm in context
Where Jul 3, 2026 sits in Ottawa's hail record.
This was Ottawa's 8th recorded hail day, arriving 9 days after the Jun 24, 2026 storm. By severity it ranks 3rd of the 11 storms we have logged here. Radar put the day's largest stone over Ottawa at 1.25" — the largest NEXRAD radar signature.
The Jul 3, 2026 convective day was bigger than Ottawa: the same system put hail over 1,885 other tracked cities, 215 of them in Illinois. Nearest: Earlville (7 miles north, up to 1.25"); Marseilles (8 miles east, up to 1"); Seneca (13 miles east, up to 1").
These maps are stills. In the app this date is one of 11 Ottawa 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 Ottawa 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.
Damage-capable hail signal
What 1.25" hail means for Ottawa roofs.
Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$19M
Potential roof exposure — 1,619 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 8 jobs
- Illustrative work
- ~$120K
Close just 0.5% of the 1,619 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
July 2028
Claims from this storm can typically be filed until around July 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 $340 on top of the $150 plan.
Ottawa hail history
Other storms in Ottawa.
Estimated-size surface Aug 12, 2026
0.75"
Estimated-size surface Aug 11, 2026
1"
Estimated-size surface Aug 9, 2026
0.75"
Estimated-size surface Jun 24, 2026
1"
Estimated-size surface May 4, 2026
2"
NEXRAD surface May 3, 2026
Estimated-size surface Apr 13, 2026
3"
Estimated-size surface Mar 31, 2026
1.25"
NEXRAD surface Mar 26, 2026
Estimated-size surface Mar 10, 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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