/ Storm field report · Phillips

Hail in Holyoke · May 30, 2026

NEXRAD logged 53 hail signatures up to 2"; the estimated-size surface reached 1.25" 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.

A tornado was also reported to the National Weather Service during this storm. The ground reports below show where it was filed.

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Peak hail signal 2" ≈ tennis ball · the largest NEXRAD radar signature
Homes in the hail footprint 196
Ground reports 6 2 hail · 4 tornado
Radar surfaces 2 NEXRAD + estimated size

Convective day · May 30, 2026 · noon–noon UTC

Severity

The most severe storm Holyoke 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
50 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
46 /100

How many homes sit inside the storm's footprint.

Ground truth
100 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Holyoke saw the hail — from two instruments

May 30, 2026 · Holyoke, CO

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.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Holyoke, CO on May 30, 2026 Radar signature field

NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.

Max size 2" Detections 53
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Holyoke, CO on May 30, 2026 Estimated size field

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 1.25"

The storm in context

Where May 30, 2026 sits in Holyoke's hail record.

This was Holyoke's 2nd recorded hail day, arriving 14 days after the May 16, 2026 storm. By severity it ranks 1st of the 13 storms we have logged here. Radar put the day's largest stone over Holyoke at 2" — the largest NEXRAD radar signature.

The May 30, 2026 convective day was bigger than Holyoke: the same system put hail over 541 other tracked cities, 23 of them in Colorado. Nearest: Champion (16 miles east, up to 1.75"); Yuma (21 miles southwest, up to 1"); Haxtun (22 miles west, up to 1").

These maps are stills. In the app this date is one of 13 Holyoke 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

6 reports 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.

Tornado reports

4 reports
Tornado Rating unknown
10 NW Wauneta Yuma County

“Tornado reported nw of Wauneta... CO. Ongoing as of time of report. (GLD)”

— NOAA / SPC storm report
Tornado Rating unknown
10 ESE Clarkville Yuma County

“Multiple reports from trained spotters and storm chasers of reporting a funnel cloud with a dust swirl at the ground. (GLD)”

— NOAA / SPC storm report
Tornado Rating unknown
9 SSE Wages Phillips County

“(BOU)”

— NOAA / SPC storm report
Tornado Rating unknown
Paoli Phillips County

“Near US Highway 6 and County Road 21. (BOU)”

— NOAA / SPC storm report

Hail reports

2 reports
Hail size 1"
10 SSE Holyoke Phillips County

“(BOU)”

— NOAA / SPC storm report
Hail size 1.56"
10 NNW Wauneta Yuma County

“Storm chaser measure 1.56 inch hail. (GLD)”

— 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.

Hail was reported over 106 minutes, from to .

Reports came from Wauneta, Clarkville, Wages, and Paoli — beyond Holyoke itself.

Severe hail signal

What 2" hail means for Holyoke 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.

196 homes × $12,000 avg. claim

Potential roof exposure

$2.4M

Potential roof exposure — 196 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
1 job
Illustrative work
~$15K

Close just 0.5% of the 196 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 $41 on top of the $150 plan.

Holyoke hail history

13 recorded storm days in Holyoke, CO
Radar-estimated hail-size map of the storm over Holyoke, CO on Aug 15, 2026 Estimated-size surface
Storm date Holyoke / CO

Aug 15, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Aug 12, 2026 Estimated-size surface
Storm date Holyoke / CO

Aug 12, 2026

0.5"
Estimated 0.5"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Aug 9, 2026 Estimated-size surface
Storm date Holyoke / CO

Aug 9, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jul 9, 2026 Estimated-size surface
Storm date Holyoke / CO

Jul 9, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jul 4, 2026 Estimated-size surface
Storm date Holyoke / CO

Jul 4, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jul 3, 2026 Estimated-size surface
Storm date Holyoke / CO

Jul 3, 2026

2.25"
Signatures 2.25" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jul 2, 2026 Estimated-size surface
Storm date Holyoke / CO

Jul 2, 2026

1.75"
Signatures 1.75" Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jun 30, 2026 Estimated-size surface
Storm date Holyoke / CO

Jun 30, 2026

1.75"
Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jun 24, 2026 Estimated-size surface
Storm date Holyoke / CO

Jun 24, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jun 23, 2026 Estimated-size surface
Storm date Holyoke / CO

Jun 23, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on Jun 8, 2026 Estimated-size surface
Storm date Holyoke / CO

Jun 8, 2026

1 ground report Open report →
Radar-estimated hail-size map of the storm over Holyoke, CO on May 16, 2026 Estimated-size surface
Storm date Holyoke / CO

May 16, 2026

2.75"
Signatures 2.75" Estimated 1.75"
No ground reports filed Open report →

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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 16, 2026.