Storm report · Grundy

Hail in Trenton May 16, 2026

Both radar surfaces caught this storm: NEXRAD logged 98 hail signatures up to 4", and the radar-estimated size reached 3" aloft. At 4" — softball or larger — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.

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Largest hailstone

≈ softball or larger · the largest NEXRAD radar signature

Homes in the hail footprint

3,872

Ground reports

30 hail · 1 wind

Severity

The most severe storm Trenton 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.

9.3 /10

Hail size: 100 /100
Homes exposed: 72 /100
Ground truth: 100 /100

Two ways to read the storm

How Trenton saw the hail — from two instruments

We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.

NEXRAD radar-signature map of the hail storm over Trenton, MO on May 16, 2026 — NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.

Max size 4" Detections 98

Radar-estimated hail-size map of the storm over Trenton, MO on May 16, 2026 — Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.

Max size 3"

The storm in context

Where May 16, 2026 sits in Trenton's hail record

This was Trenton's 4th recorded hail day, arriving 29 days after the Apr 17, 2026 storm. By severity it ranks 1st of the 6 storms we have logged here. Radar put the day's largest stone over Trenton at 4" — the largest NEXRAD radar signature.

The May 16, 2026 convective day was bigger than Trenton: the same system put hail over 711 other tracked cities, 114 of them in Missouri. Nearest: Spickard (7 miles north, up to 2.5"); Galt (8 miles east, up to 3.5"); Laredo (9 miles southeast, up to 4").

These maps are stills from Trenton's May 16, 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.

Hail reports

30 reports

Hail size 1"

Spickard Grundy County

10:37 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2.5"

5 NW Laredo Grundy County

10:29 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1"

5 WSW Galt Grundy County

1:18 AM UTC

“Field flooded from torrential rainfall as well. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2.5"

5 WSW Galt Grundy County

10:24 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 3"

4 N Laredo Grundy County

10:31 PM UTC

“Social media report... photo... and measurement. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2"

4 SW Galt Grundy County

10:31 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1"

2 SSW Tindall Grundy County

9:39 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 2"

3 N Trenton Grundy County

10:26 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 1"

4 E Trenton Grundy County

10:02 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 3"

3 E Trenton Grundy County

10:13 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.5"

2 E Trenton Grundy County

10:16 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.75"

2 E Trenton Grundy County

10:11 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 1.25"

2 ESE Trenton Grundy County

10:11 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 2.5"

3 WSW Galt Grundy County

10:37 PM UTC

“Social media report. Severe damage to multiple vehicles. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1"

2 SSE Brimson Grundy County

12:52 AM UTC

“Delayed social media report. Time confirmed from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2.75"

3 WSW Trenton Grundy County

9:42 PM UTC

“Social media report. Damaged windshield. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.25"

2 WNW Trenton Grundy County

3:34 AM UTC

“Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.25"

1 SE Trenton Grundy County

3:42 AM UTC

“Social media report. Minor damage to vehicle. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.75"

1 ESE Trenton Grundy County

9:22 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.75"

2 N Trenton Grundy County

10:17 PM UTC

“Delayed social media report. Time confirmed from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.5"

1 N Trenton Grundy County

10:20 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.5"

1 N Trenton Grundy County

10:31 PM UTC

“(EAX)”
— NOAA / SPC storm report

Hail size 1.25"

Brimson Grundy County

12:59 AM UTC

“Social media report. Time confirmed from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1"

Brimson Grundy County

10:48 PM UTC

“Social media report. Time confirmed from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1"

Brimson Grundy County

2:05 AM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2.5"

Laredo Grundy County

11:41 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.75"

3 N Laredo Grundy County

11:29 PM UTC

“Social media report. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 1.75"

6 WSW Laredo Grundy County

11:30 PM UTC

“Social media report. Damaged windshields. Time estimated from radar. (EAX)”
— NOAA / SPC storm report

Hail size 2.75"

5 S Trenton Grundy County

11:15 PM UTC

“Golf ball to baseball size hail. (EAX)”
— NOAA / SPC storm report

Hail size 2.75"

2 ESE Trenton Grundy County

10:17 PM UTC

“Chaser reports baseball size hail south of Trenton along Hwy 65 via social media. (EAX)”
— NOAA / SPC storm report

Wind reports

1 report

Wind gust 71 mph

2 WSW Laredo Grundy County

10:29 PM UTC

“Personal Weather Station recorded. (EAX)”
— NOAA / SPC storm report

Storm forensics

How the storm moved

Hail was reported over 380 minutes, from 9:22 PM UTC to 3:42 AM UTC .

Reports came from Spickard, Laredo, Galt, Tindall, and Brimson — beyond Trenton itself.

Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.

Severe, roof-replacing hail

What 4" hail means for Trenton roofs

Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.

What this storm is worth to a roofer

$46M

Potential roof exposure — 3,872 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs

19 jobs

Illustrative work

~$285K

Close just 0.5% of the 3,872 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 May 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Track hail over Trenton on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Trenton storm history — this May 16, 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.

Reach 3,872 affected homes → Book a 15-min demo

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Trenton hail history

6 recorded storm days in Trenton, MO

← All hail in Trenton

Other storms in Trenton

Jun 10, 2026

Jun 6, 2026

Signatures 1.5" Estimated 0.75"

No ground reports filed

Apr 17, 2026

View storm →

Signatures 2" Estimated 1.25"

Apr 15, 2026

Mar 26, 2026

View storm → No ground reports filed

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 2, 2026.