Hail size 1.75"
1 S Harris Osceola County
“Social media report with picture. Time estimated by radar. (FSD)”
— NOAA / SPC storm report
/ Storm field report · Osceola
Hail in Harris · Apr 13, 2026
NEXRAD logged 8 hail signatures up to 1.5"; the estimated-size surface reached 0.75" aloft. 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 · the largest NEXRAD radar signature
Homes in the hail footprint 88
Ground reports 2 2 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Apr 13, 2026 · noon–noon UTC
Severity
The most severe storm Harris has seen in the last 12 months
Composite score · 3.7 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
3.7 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 39 /100
- Ground truth
- 33 /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 Harris saw the hail — from two instruments
Apr 13, 2026 · Harris, 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.
NEXRAD radar signatures Surface resolved
Radar signature field Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
1.5"
Detections
8
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
0.75"
The storm in context
Where Apr 13, 2026 sits in Harris's hail record.
This was Harris's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Harris at 1.5" — the largest NEXRAD radar signature.
The Apr 13, 2026 convective day was bigger than Harris: the same system put hail over 467 other tracked cities, 64 of them in Iowa. Nearest: Lake Park (5 miles east, up to 1.5"); Hartley (10 miles south, up to 1.25"); Milford (12 miles southeast, up to 1.5").
These maps are stills. In the app this date is one of 5 Harris 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
2 reports 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
2 reports Hail size 1"
8 SE Ocheyedan Osceola County
“Social media report with a coin for reference. Time estimated by radar. (FSD)”
— NOAA / SPC storm report
Storm 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 Ocheyedan — beyond Harris itself.
High damage potential
What 1.5" hail means for Harris 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.
88 homes × $12,000 avg. claim
Potential roof exposure
$1.1M
Potential roof exposure — 88 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
April 2028
Claims from this storm can typically be filed until around April 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 $18 on top of the $150 plan.
Harris hail history
Other storms in Harris.
5 recorded storm days in Harris, IA
Estimated-size surface Storm date Harris / IA
Aug 7, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Harris / IA
Jul 1, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Harris / IA
Jun 29, 2026
1" Signatures 1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Harris / IA
Jun 27, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
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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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 8, 2026.