/ Storm field report · Montgomery

Hail in Emerson · Apr 23, 2026

NEXRAD logged 27 hail signatures up to 2"; the estimated-size surface reached 1" 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.

Download on the App Store

7-day free trial in the iPhone app. No card required to start.

For iPhone. Android coming soon.

Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.

Peak hail signal 2" ≈ tennis ball · the largest NEXRAD radar signature
Homes in the hail footprint 556
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Apr 23, 2026 · noon–noon UTC

Severity

The 5th most severe storm Emerson has seen in the last 12 months

Composite score · 4.4 / 10
Storm severity score

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

4.4 /10
Peak hail signal
50 /100

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

Homes exposed
55 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Emerson saw the hail — from two instruments

Apr 23, 2026 · Emerson, IA

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 Emerson, IA on Apr 23, 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 27
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Emerson, IA on Apr 23, 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"

The storm in context

Where Apr 23, 2026 sits in Emerson's hail record.

This was Emerson's 3rd recorded hail day, arriving 14 days after the Apr 9, 2026 storm. By severity it ranks 5th of the 15 storms we have logged here. Radar put the day's largest stone over Emerson at 2" — the largest NEXRAD radar signature.

The Apr 23, 2026 convective day was bigger than Emerson: the same system put hail over 703 other tracked cities, 252 of them in Iowa. Nearest: Elliott (10 miles east, up to 1"); Griswold (10 miles northeast, up to 1"); Hastings (11 miles west, up to 1.75").

These maps are stills. In the app this date is one of 15 Emerson 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

No 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.

For this storm over Emerson, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.

Severe hail signal

What 2" hail means for Emerson 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.

556 homes × $12,000 avg. claim

Potential roof exposure

$6.7M

Potential roof exposure — 556 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
3 jobs
Illustrative work
~$45K

Close just 0.5% of the 556 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

April 2028

Claims from this storm can typically be filed until around April 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 $117 on top of the $150 plan.

Emerson hail history

15 recorded storm days in Emerson, IA
Radar-estimated hail-size map of the storm over Emerson, IA on Sep 14, 2026 Estimated-size surface
Storm date Emerson / IA

Sep 14, 2026

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

Aug 8, 2026

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

Aug 4, 2026

2"
Estimated 2"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on Jun 30, 2026 Estimated-size surface
Storm date Emerson / IA

Jun 30, 2026

1"
Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on Jun 13, 2026 Estimated-size surface
Storm date Emerson / IA

Jun 13, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on Jun 10, 2026 Estimated-size surface
Storm date Emerson / IA

Jun 10, 2026

1.25"
Estimated 1.25"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on Jun 5, 2026 Estimated-size surface
Storm date Emerson / IA

Jun 5, 2026

1.75"
Signatures 1.75" Estimated 1"
2 ground reports Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on May 31, 2026 Estimated-size surface
Storm date Emerson / IA

May 31, 2026

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

May 18, 2026

1.5"
Signatures 1.5" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on May 17, 2026 Estimated-size surface
Storm date Emerson / IA

May 17, 2026

1"
Signatures 1" Estimated 0.5"
1 ground report Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on May 16, 2026 Estimated-size surface
Storm date Emerson / IA

May 16, 2026

2.5"
Signatures 2.5" Estimated 2"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on May 15, 2026 Estimated-size surface
Storm date Emerson / IA

May 15, 2026

3"
Signatures 3" Estimated 1.5"
2 ground reports Open report →
NEXRAD radar-signature map of the hail storm over Emerson, IA on Apr 9, 2026 NEXRAD surface
Storm date Emerson / IA

Apr 9, 2026

No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Emerson, IA on Mar 6, 2026 Estimated-size surface
Storm date Emerson / IA

Mar 6, 2026

1"
Estimated 1"
1 ground report Open report →

The next storm won’t wait for you.

Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.

Download on the App Store

7-day free trial in the iPhone app. No card required to start.

For iPhone. Android coming soon.

Open this storm on the live map → Start free trial

Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.

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 15, 2026.