Storm report · Madison

Hail in Peru Jul 20, 2026

Hit 14 days ago

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

Largest hailstone

0.75"

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

929

Ground reports

0

none filed
Severity

The 3rd most severe storm Peru 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.

2.6 /10
Hail size
19 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
59 /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 Peru saw the hail — from two instruments

Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.

Radar-estimated hail size
Radar-estimated hail-size map of the storm over Peru, IA on Jul 20, 2026

Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.

Max size 0.75"

Only the radar-estimated size surface resolved for Jul 20, 2026 — this storm produced no NEXRAD point detections over Peru, so there is one map to show, not two.

The storm in context

Where Jul 20, 2026 sits in Peru's hail record

This was Peru's 4th recorded hail day, arriving 17 days after the Jul 3, 2026 storm. By severity it ranks 3rd of the 4 storms we have logged here. Radar put the day's largest stone over Peru at 0.75" — radar-estimated size aloft.

The Jul 20, 2026 convective day was bigger than Peru: the same system put hail over 553 other tracked cities, 178 of them in Iowa. Nearest: Saint Charles (9 miles northeast, up to 1"); Winterset (12 miles northwest, up to 1.25"); Van Meter (14 miles north, up to 1.75").

These maps are stills from Peru's Jul 20, 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.

No ground reports were filed with the National Weather Service for this storm over Peru. 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.

Near the severe threshold

What 0.75" hail means for Peru 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

$11M

Potential roof exposure — 929 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
5 jobs
Illustrative work
~$75K
Close just 0.5% of the 929 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 July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Track hail over Peru on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Peru storm history — this Jul 20, 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

Peru hail history

4 recorded storm days in Peru, IA

← All hail in Peru

Other storms in Peru

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.