Hail in Sioux Center · Aug 3, 2026
NEXRAD logged 0 hail signatures up to 0"; 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 · Aug 3, 2026 · noon–noon UTC
Severity
The 10th most severe storm Sioux Center 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
- 13 /100
- Homes exposed
- 53 /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 Sioux Center 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 Aug 3, 2026 sits in Sioux Center's hail record.
This was Sioux Center's 8th recorded hail day, arriving 30 days after the Jul 4, 2026 storm. By severity it ranks 10th of the 11 storms we have logged here. Radar put the day's largest stone over Sioux Center at 0.5" — radar-estimated size aloft.
The Aug 3, 2026 convective day was bigger than Sioux Center: the same system put hail over 172 other tracked cities, 11 of them in Iowa. Nearest: Boyden (12 miles northeast, up to 0.5"); Doon (14 miles north, up to 0.5"); Hudson (15 miles west, up to 0.5").
These maps are stills. In the app this date is one of 11 Sioux Center 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.
No ground reports were filed with the National Weather Service for this storm over Sioux Center. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
Below the severe threshold
What 0.5" hail means for Sioux Center 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.
Potential roof exposure
$5.3M
Potential roof exposure — 441 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 2 jobs
- Illustrative work
- ~$30K
Close just 0.5% of the 441 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
August 2028
Claims from this storm can typically be filed until around August 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 $93 on top of the $150 plan.
Sioux Center hail history
Other storms in Sioux Center.
Estimated-size surface Sep 5, 2026
1"
Estimated-size surface Sep 4, 2026
1"
Estimated-size surface Sep 1, 2026
0.75"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 2, 2026
1.5"
Estimated-size surface Jun 30, 2026
1.75"
Estimated-size surface Jun 29, 2026
1"
Estimated-size surface Jun 27, 2026
2.5"
Estimated-size surface May 31, 2026
1"
Estimated-size surface May 16, 2026
1"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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