Hail in Illiopolis Mar 31, 2026
NEXRAD caught this storm: 0 hail signatures up to 1". The radar-estimated size surface had no signal to model this day.
1"
≈ quarter · the largest NEXRAD radar signature0
0
none filedThe 3rd most severe storm Illiopolis has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 25 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Illiopolis saw the hail — from two instruments
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'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.
Only the NEXRAD radar-signature surface resolved for Mar 31, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where Mar 31, 2026 sits in Illiopolis's hail record
This was Illiopolis's 2nd recorded hail day, arriving 28 days after the Mar 3, 2026 storm. By severity it ranks 3rd of the 5 storms we have logged here. Radar put the day's largest stone over Illiopolis at 1" — the largest NEXRAD radar signature.
The Mar 31, 2026 convective day was bigger than Illiopolis: the same system put hail over 522 other tracked cities, 114 of them in Illinois. Nearest: Mount Auburn (4 miles southeast, up to 1"); Mount Pulaski (11 miles north, up to 0.75"); Edinburg (11 miles south, up to 0").
These maps are stills from Illiopolis's Mar 31, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
What people on the ground reported
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 Illiopolis, 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.
What 1" hail means for Illiopolis roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
Track hail over Illiopolis on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Illiopolis storm history — this Mar 31, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
5 recorded storm days in Illiopolis, IL
