Hail size 1"
1 WNW Savanna Carroll County
“Broadcast media report of quarter-sized hail in Savanna. Time estimated by radar. (DVN)”
— NOAA / SPC storm report
/ Storm field report · Jackson
Hail in Sabula · Aug 21, 2026
Hit 22 days ago
The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Sabula that day. Open it on the live map to see the swath over the streets.
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Peak hail signal 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 2,580
Ground reports 1 1 hail
Radar surfaces 1 Estimated size only
Convective day · Aug 21, 2026 · noon–noon UTC
Severity
The most severe storm Sabula has seen in the last 12 months
Composite score · 4.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.2 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 68 /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 Sabula saw the hail — from two instruments
Aug 21, 2026 · Sabula, IA
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
1.5"
Only the radar-estimated size surface resolved for Aug 21, 2026 — this storm produced no NEXRAD point detections over Sabula, so there is one map to show, not two.
The storm in context
Where Aug 21, 2026 sits in Sabula's hail record.
This was Sabula's 2nd recorded hail day, arriving 49 days after the Jul 3, 2026 storm. By severity it ranks 1st of the 2 storms we have logged here. Radar put the day's largest stone over Sabula at 1.5" — radar-estimated size aloft.
The Aug 21, 2026 convective day was bigger than Sabula: the same system put hail over 659 other tracked cities, 12 of them in Iowa. Nearest: Miles (5 miles west, up to 1.5"); Hanover (9 miles northwest, up to 1.5"); Bryant (9 miles southwest, up to 1").
These maps are stills. In the app this date is one of 2 Sabula 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 Savanna — beyond Sabula itself.
High damage potential
What 1.5" hail means for Sabula roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
2,580 homes × $12,000 avg. claim
Potential roof exposure
$31M
Potential roof exposure — 2,580 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 13 jobs
- Illustrative work
- ~$195K
Close just 0.5% of the 2,580 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 $542 on top of the $150 plan.
Sabula hail history
Other storms in Sabula.
2 recorded storm days in Sabula, IA
Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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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 Aug 22, 2026.