Storm report · Louisa

Hail in Columbus Junction Apr 15, 2026

The radar-estimated size surface caught this storm, reaching 0.75" aloft. NEXRAD logged no point detections over Columbus Junction this day.

Largest hailstone

0.75"

≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint

677

Ground reports

0

none filed
Severity

The 4th most severe storm Columbus Junction has seen in the last 12 months

Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

2.5 /10
Hail size
19 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
57 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Columbus Junction 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-estimated hail size
Radar-estimated hail-size map of the storm over Columbus Junction, IA on Apr 15, 2026

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.

Max size 0.75"

Only the radar-estimated size surface resolved for Apr 15, 2026 — this storm produced no NEXRAD point detections over Columbus Junction, so there is one map to show, not two.

The storm in context

Where Apr 15, 2026 sits in Columbus Junction's hail record

This was Columbus Junction's 5th recorded hail day, arriving 1 day after the Apr 14, 2026 storm. By severity it ranks 4th of the 8 storms we have logged here. Radar put the day's largest stone over Columbus Junction at 0.75" — radar-estimated size aloft.

The Apr 15, 2026 convective day was bigger than Columbus Junction: the same system put hail over 425 other tracked cities, 127 of them in Iowa. Nearest: Letts (5 miles east, up to 0.75"); Conesville (7 miles north, up to 1"); Ainsworth (17 miles northwest, up to 1").

These maps are stills from Columbus Junction's Apr 15, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.

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 Columbus Junction 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.

Near the severe threshold

What 0.75" hail means for Columbus Junction roofs

Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.

What this storm is worth to a roofer

$8.1M

Potential roof exposure — 677 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
3 jobs
Illustrative work
~$45K
Close just 0.5% of the 677 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.
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.

Track hail over Columbus Junction on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Columbus Junction storm history — this Apr 15, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.

Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing

Columbus Junction hail history

8 recorded storm days in Columbus Junction, IA

← All hail in Columbus Junction

Other storms in Columbus Junction

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 surfaces are detections and estimates, not confirmed damage. Last updated Aug 3, 2026.