/ Storm field report · Dickinson

Hail in Spirit Lake · Jun 29, 2026

NEXRAD logged 0 hail signatures up to 1"; the estimated-size surface reached 0.75" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 1" ≈ quarter · the largest NEXRAD radar signature
Homes in the hail footprint 1,957
Ground reports 2 2 wind
Radar surfaces 2 NEXRAD + estimated size

Convective day · Jun 29, 2026 · noon–noon UTC

Severity

The 7th most severe storm Spirit Lake has seen in the last 12 months

Composite score · 3.6 / 10
Storm severity score

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

3.6 /10
Peak hail signal
25 /100

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

Homes exposed
66 /100

How many homes sit inside the storm's footprint.

Ground truth
33 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Spirit Lake saw the hail — from two instruments

Jun 29, 2026 · Spirit Lake, IA

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Spirit Lake, IA on Jun 29, 2026 Radar signature field

Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.

Max size 1" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jun 29, 2026 Estimated size field

The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 0.75"

The storm in context

Where Jun 29, 2026 sits in Spirit Lake's hail record.

This was Spirit Lake's 8th recorded hail day, arriving 2 days after the Jun 27, 2026 storm. By severity it ranks 7th of the 18 storms we have logged here. Radar put the day's largest stone over Spirit Lake at 1" — the largest NEXRAD radar signature.

The Jun 29, 2026 convective day was bigger than Spirit Lake: the same system put hail over 702 other tracked cities, 48 of them in Iowa. Nearest: Estherville (13 miles east, up to 1.75"); Lake Park (13 miles west, up to 0.75"); Lakefield (16 miles northwest, up to 1.75").

These maps are stills. In the app this date is one of 18 Spirit Lake 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

2 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.

Wind reports

2 reports
Wind gust 59 mph
1 S Arnolds Park Dickinson County

“Ambient Personal Weather Station. (FSD)”

— NOAA / SPC storm report
Wind gust 74 mph
1 NNE Orleans Dickinson County

“Ambient Personal Weather Station. (FSD)”

— 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 Arnolds Park and Orleans — beyond Spirit Lake itself.

Damage-capable hail signal

What 1" hail means for Spirit Lake roofs.

Quarter-size and larger hail can bruise asphalt mats, remove granules, and dent exposed soft metal. The mapped footprint identifies an inspection priority area — it does not identify which individual roofs, if any, sustained damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

1,957 homes × $12,000 avg. claim

Potential roof exposure

$23M

Potential roof exposure — 1,957 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
10 jobs
Illustrative work
~$150K

Close just 0.5% of the 1,957 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

June 2028

Claims from this storm can typically be filed until around June 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 $411 on top of the $150 plan.

Spirit Lake hail history

18 recorded storm days in Spirit Lake, IA
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Sep 6, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Sep 6, 2026

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

Sep 3, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Aug 18, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Aug 18, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Aug 9, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Aug 9, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Aug 8, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Aug 8, 2026

1.5"
Estimated 1.5"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Aug 7, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Aug 7, 2026

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

Jul 4, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jul 2, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Jul 2, 2026

2"
Signatures 2" Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jul 1, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Jul 1, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jun 30, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Jun 30, 2026

1.25"
Signatures 1.25" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jun 27, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Jun 27, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Jun 9, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Jun 9, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on May 25, 2026 Estimated-size surface
Storm date Spirit Lake / IA

May 25, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on May 18, 2026 Estimated-size surface
Storm date Spirit Lake / IA

May 18, 2026

1.75"
Signatures 1.75" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on May 17, 2026 Estimated-size surface
Storm date Spirit Lake / IA

May 17, 2026

1.75"
Signatures 1.75" Estimated 1"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on May 15, 2026 Estimated-size surface
Storm date Spirit Lake / IA

May 15, 2026

1.25"
Signatures 1.25" Estimated 0.75"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Spirit Lake, IA on Apr 13, 2026 Estimated-size surface
Storm date Spirit Lake / IA

Apr 13, 2026

1.25"
Signatures 1.25" Estimated 0.75"
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 Sep 7, 2026.