NEXRAD caught this storm: 0 hail signatures up to 0". The radar-estimated size surface had no signal to model this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
0"
≈ pea to penny · radar-estimated size aloft0
2
2 tornadoOverview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
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.
The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
Only the NEXRAD radar-signature surface resolved for Apr 17, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
This was La Moille's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 4 storms we have logged here. Radar put the day's largest stone over La Moille at 0" — radar-estimated size aloft.
The Apr 17, 2026 convective day was bigger than La Moille: the same system put hail over 1,016 other tracked cities, 101 of them in Illinois. Nearest: Ohio (8 miles west, up to 1"); Amboy (16 miles northwest, up to 0"); Wyanet (19 miles west, up to 1.5").
These maps are stills from La Moille's Apr 17, 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.
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.
“An EF-1 tornado developed in far eastern Bureau County... with estimated max winds of 90 mph. A barn sustained roofing damage. The tornado then moved NE into LaSalle Co (DVN)”
— NOAA / SPC storm report
“An NWS storm survey confirmed an EF-1 tornado with peak winds near 90 mph... path length of 14.9 miles... and maximum width near 700 yards started in Bureau County and (LOT)”
— NOAA / SPC storm report
Reports came from Arlington and Mendota — beyond La Moille itself.
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.
Radar updates in real time, spotter reports appear on the map as they're filed, and the full La Moille storm history — this Apr 17, 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
4 recorded storm days in La Moille, IL
