/ Storm field report · Sumner

Hail in Argonia · May 18, 2026

The estimated-size surface reached 2.5" aloft; NEXRAD logged no point detections over Argonia that day. At 2.5" — baseball — 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 2.5" ≈ baseball · radar-estimated size aloft

Homes in the hail footprint 1,457

Ground reports 1 1 hail

Radar surfaces 1 Estimated size only

Convective day · May 18, 2026 · noon–noon UTC

Severity

The 2nd most severe storm Argonia has seen in the last 12 months

Composite score · 5.6 / 10

Storm severity score

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

5.6 /10

Peak hail signal: 63 /100
Homes exposed: 63 /100
Ground truth: 17 /100

Evidence / storm surfaces

How Argonia saw the hail — from two instruments

May 18, 2026 · Argonia, KS

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 map of the storm over Argonia, KS on May 18, 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 2.5"

Only the radar-estimated size surface resolved for May 18, 2026 — this storm produced no NEXRAD point detections over Argonia, so there is one map to show, not two.

The storm in context

Where May 18, 2026 sits in Argonia's hail record.

This was Argonia's 3rd recorded hail day, arriving 31 days after the Apr 17, 2026 storm. By severity it ranks 2nd of the 11 storms we have logged here. Radar put the day's largest stone over Argonia at 2.5" — radar-estimated size aloft.

The May 18, 2026 convective day was bigger than Argonia: the same system put hail over 726 other tracked cities, 258 of them in Kansas. Nearest: Milan (6 miles east, up to 2"); Danville (9 miles northwest, up to 2"); Anthony (11 miles west, up to 0.75").

These maps are stills. In the app this date is one of 11 Argonia 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 report

Hail size 1.75"

4 NE Milan Sumner County

3:37 AM UTC

“Report from mPING: Golf Ball (1.75 in.). (ICT)”
— 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 Milan — beyond Argonia itself.

Severe hail signal

What 2.5" hail means for Argonia 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.

1,457 homes × $12,000 avg. claim

Potential roof exposure

$17M

Potential roof exposure — 1,457 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs: 7 jobs
Illustrative work: ~$105K

Close just 0.5% of the 1,457 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

May 2028

Claims from this storm can typically be filed until around May 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 $306 on top of the $150 plan.

Argonia hail history

11 recorded storm days in Argonia, KS

← All hail in Argonia

Map unavailable

NEXRAD surface

Storm date Argonia / KS

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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 Sep 13, 2026.

The 2nd most severe storm Argonia has seen in the last 12 months

How Argonia saw the hail — from two instruments

Where May 18, 2026 sits in Argonia's hail record.

What people on the ground reported

Hail reports

How the storm moved

What 2.5" hail means for Argonia roofs.

What this storm is worth to a roofer.

Other storms in Argonia.

Sep 12, 2026

Jul 9, 2026

Jul 4, 2026

Jun 25, 2026

Jun 21, 2026

Jun 20, 2026

Jun 18, 2026

May 30, 2026

Apr 17, 2026

Mar 10, 2026

The next storm won’t wait for you.