Hail in Simpson Jul 31, 2026
Hit 3 days agoNEXRAD caught this storm: 0 hail signatures up to 0". The radar-estimated size surface had no signal to model this day.
0"
≈ pea to penny · radar-estimated size aloft0
0
none filedThe 5th most severe storm Simpson 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
- 0 /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 Simpson 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 Jul 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 Jul 31, 2026 sits in Simpson's hail record
This was Simpson's 6th recorded hail day, arriving 28 days after the Jul 3, 2026 storm. By severity it ranks 5th of the 6 storms we have logged here. Radar put the day's largest stone over Simpson at 0" — radar-estimated size aloft.
The Jul 31, 2026 convective day was bigger than Simpson: the same system put hail over 238 other tracked cities, 4 of them in Illinois. Nearest: Salem (26 miles southeast, up to 0"); Villa Ridge (34 miles southwest, up to 1"); Tamms (39 miles southwest, up to 1").
These maps are stills from Simpson's Jul 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.
No ground reports were filed with the National Weather Service for this storm over Simpson. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
What 0" hail means for Simpson roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
Track hail over Simpson on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Simpson storm history — this Jul 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
6 recorded storm days in Simpson, IL
Other storms in Simpson
Jul 3, 2026
1.75"
May 31, 2026
1"
Apr 27, 2026
2.75"
Mar 15, 2026
Mar 4, 2026
2.5"