Hail size 1.5"
Columbus City Louisa County
“via social media. (DVN)”
— NOAA / SPC storm report
/ Storm field report · Louisa
Hail in Columbus Junction · Mar 31, 2026
NEXRAD logged 68 hail signatures up to 2"; the estimated-size surface reached 0.5" aloft. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Peak hail signal 2" ≈ tennis ball · the largest NEXRAD radar signature
Homes in the hail footprint 2,331
Ground reports 1 1 hail
Radar surfaces 2 NEXRAD + estimated size
Convective day · Mar 31, 2026 · noon–noon UTC
Severity
The most severe storm Columbus Junction has seen in the last 12 months
Composite score · 4.9 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.9 /10
- Peak hail signal
- 50 /100
- Homes exposed
- 67 /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 Columbus Junction saw the hail — from two instruments
Mar 31, 2026 · Columbus Junction, 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
2"
Detections
68
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
0.5"
The storm in context
Where Mar 31, 2026 sits in Columbus Junction's hail record.
This was Columbus Junction's 2nd recorded hail day, arriving 21 days after the Mar 10, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Columbus Junction at 2" — the largest NEXRAD radar signature.
The Mar 31, 2026 convective day was bigger than Columbus Junction: the same system put hail over 522 other tracked cities, 24 of them in Iowa. Nearest: Letts (5 miles east, up to 1.25"); Conesville (7 miles north, up to 0.75"); Muscatine (10 miles east, up to 1.5").
These maps are stills. In the app this date is one of 8 Columbus Junction 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 Columbus City — beyond Columbus Junction itself.
Severe hail signal
What 2" hail means for Columbus Junction roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
2,331 homes × $12,000 avg. claim
Potential roof exposure
$28M
Potential roof exposure — 2,331 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 12 jobs
- Illustrative work
- ~$180K
Close just 0.5% of the 2,331 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
March 2028
Claims from this storm can typically be filed until around March 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 $490 on top of the $150 plan.
Columbus Junction hail history
Other storms in Columbus Junction.
8 recorded storm days in Columbus Junction, IA
Estimated-size surface Storm date Columbus Junction / IA
Jul 3, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Columbus Junction / IA
Jun 11, 2026
0.5" Estimated 0.5"
1 ground report Open report →
Estimated-size surface Storm date Columbus Junction / IA
May 15, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Columbus Junction / IA
Apr 15, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Columbus Junction / IA
Apr 14, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Columbus Junction / IA
Apr 2, 2026
1" Signatures 1"
No ground reports filed Open report →
Estimated-size surface Storm date Columbus Junction / IA
Mar 10, 2026
2" Estimated 2"
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 3, 2026.