Tornado Rating unknown
1 S Eldora Hardin County
“Emergency Management relayed reports of a brief tornado touchdown just south of Eldora with damage to a building. (DMX)”
— NOAA / SPC storm report
/ Storm field report · Grundy
Hail in Steamboat Rock · Apr 14, 2026
The estimated-size surface reached 1.5" aloft; NEXRAD logged no point detections over Steamboat Rock that day. 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 1.5" ≈ ping-pong ball · radar-estimated size aloft
Homes in the hail footprint 2,710
Ground reports 3 1 hail · 2 tornado
Radar surfaces 1 Estimated size only
Convective day · Apr 14, 2026 · noon–noon UTC
Severity
The most severe storm Steamboat Rock has seen in the last 12 months
Composite score · 5.2 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
5.2 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 69 /100
- Ground truth
- 83 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Steamboat Rock saw the hail — from two instruments
Apr 14, 2026 · Steamboat Rock, IA
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 Surface resolved
Estimated size field 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
1.5"
Only the radar-estimated size surface resolved for Apr 14, 2026 — this storm produced no NEXRAD point detections over Steamboat Rock, so there is one map to show, not two.
The storm in context
Where Apr 14, 2026 sits in Steamboat Rock's hail record.
This was Steamboat Rock's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 2 storms we have logged here. Radar put the day's largest stone over Steamboat Rock at 1.5" — radar-estimated size aloft.
The Apr 14, 2026 convective day was bigger than Steamboat Rock: the same system put hail over 476 other tracked cities, 143 of them in Iowa. Nearest: Eldora (7 miles south, up to 1.75"); Conrad (7 miles south, up to 1.25"); Wellsburg (10 miles northeast, up to 2").
These maps are stills. In the app this date is one of 2 Steamboat Rock 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
3 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
2 reports Tornado Rating unknown
2 E Eldora Hardin County
“Time and location estimated from radar. (DMX)”
— NOAA / SPC storm report
Hail reports
1 report Hail size 1.5"
Eldora Hardin County
“(DMX)”
— 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 10 minutes, from to .
Reports came from Eldora — beyond Steamboat Rock itself.
High damage potential
What 1.5" hail means for Steamboat Rock roofs.
Hail around an inch and a half is capable of cracking shingles, stripping granules, and denting gutters, vents, and siding. Risk is usually greatest near the strongest radar signal, but property-level damage still requires an on-site inspection.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
2,710 homes × $12,000 avg. claim
Potential roof exposure
$33M
Potential roof exposure — 2,710 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 14 jobs
- Illustrative work
- ~$210K
Close just 0.5% of the 2,710 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 $569 on top of the $150 plan.
Steamboat Rock hail history
Other storms in Steamboat Rock.
2 recorded storm days in Steamboat Rock, IA
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.
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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 11, 2026.