Tornado Rating unknown
2 SSW Marine Madison County
“NWS Damage Survey found that a brief EF0 tornado impacted a farm near IL Highway 4 and Interstate 70. (LSX)”
— NOAA / SPC storm report
/ Storm field report · Madison
Hail in Marine · Apr 27, 2026
NEXRAD logged 22 hail signatures up to 1.5"; the estimated-size surface reached 1" aloft. 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 · the largest NEXRAD radar signature
Homes in the hail footprint 1,131
Ground reports 1 1 tornado
Radar surfaces 2 NEXRAD + estimated size
Convective day · Apr 27, 2026 · noon–noon UTC
Severity
The most severe storm Marine has seen in the last 12 months
Composite score · 4.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.3 /10
- Peak hail signal
- 38 /100
- Homes exposed
- 61 /100
- Ground truth
- 33 /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 Marine saw the hail — from two instruments
Apr 27, 2026 · Marine, IL
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
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
1.5"
Detections
22
Radar-estimated hail size Surface resolved
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 27, 2026 sits in Marine's hail record.
This was Marine's 2nd recorded hail day, arriving 1 day after the Apr 26, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Marine at 1.5" — the largest NEXRAD radar signature.
The Apr 27, 2026 convective day was bigger than Marine: the same system put hail over 1,188 other tracked cities, 336 of them in Illinois. Nearest: Edwardsville (5 miles west, up to 2.5"); Saint Jacob (7 miles south, up to 1.25"); Alhambra (9 miles northeast, up to 1.75").
These maps are stills. In the app this date is one of 5 Marine 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
1 report 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
1 reportHigh damage potential
What 1.5" hail means for Marine 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.
1,131 homes × $12,000 avg. claim
Potential roof exposure
$14M
Potential roof exposure — 1,131 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 6 jobs
- Illustrative work
- ~$90K
Close just 0.5% of the 1,131 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 $238 on top of the $150 plan.
Marine hail history
Other storms in Marine.
5 recorded storm days in Marine, IL
Estimated-size surface Storm date Marine / IL
Jul 4, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Marine / IL
May 31, 2026
1" Signatures 1" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Marine / IL
May 16, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Marine / IL
Apr 26, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 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.
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For iPhone. Android coming soon.
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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 3, 2026.