Hail in Marengo · Apr 2, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.
Convective day · Apr 2, 2026 · noon–noon UTC
Severity
The 9th most severe storm Marengo has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 0 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /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 Marengo 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.
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.
Only the NEXRAD radar-signature surface resolved for Apr 2, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where Apr 2, 2026 sits in Marengo's hail record.
This was Marengo's 2nd recorded hail day, arriving 3 days after the Mar 30, 2026 storm. By severity it ranks 9th of the 10 storms we have logged here. Radar put the day's largest stone over Marengo at 0" — radar-estimated size aloft.
The Apr 2, 2026 convective day was bigger than Marengo: the same system put hail over 160 other tracked cities, 84 of them in Illinois. Nearest: Woodstock (11 miles east, up to 0"); Monroe Center (21 miles southwest, up to 1.25"); Janesville (29 miles northwest, up to 2.25").
These maps are stills. In the app this date is one of 10 Marengo 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
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.
The National Weather Service logged no spotter reports for this storm over Marengo. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Below the severe threshold
What 0" hail means for Marengo roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Marengo hail history
Other storms in Marengo.
Estimated-size surface Aug 9, 2026
0.5"
Estimated-size surface Jul 27, 2026
1"
Estimated-size surface Jul 17, 2026
0.5"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 2, 2026
0.5"
Estimated-size surface Jun 11, 2026
0.5"
NEXRAD surface Jun 5, 2026
Estimated-size surface Apr 14, 2026
0.75"
Estimated-size surface Mar 30, 2026
1"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.
7-day free trial in the iPhone app. No card required to start.
For iPhone. Android coming soon.
Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.